David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1 | /***************************************************************************/ |
| 2 | /* */ |
| 3 | /* ttinterp.c */ |
| 4 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5 | /* TrueType bytecode interpreter (body). */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6 | /* */ |
Werner Lemberg | 28464c4 | 2008-02-18 20:34:42 +0000 | [diff] [blame] | 7 | /* Copyright 1996-2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008 by */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 8 | /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| 9 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 10 | /* This file is part of the FreeType project, and may only be used, */ |
| 11 | /* modified, and distributed under the terms of the FreeType project */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 12 | /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
| 13 | /* this file you indicate that you have read the license and */ |
| 14 | /* understand and accept it fully. */ |
| 15 | /* */ |
| 16 | /***************************************************************************/ |
| 17 | |
Werner Lemberg | cc069be | 2000-12-08 16:17:16 +0000 | [diff] [blame] | 18 | |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 19 | #include <ft2build.h> |
| 20 | #include FT_INTERNAL_DEBUG_H |
| 21 | #include FT_INTERNAL_CALC_H |
David Turner | ac6cc41 | 2001-06-14 12:34:00 +0000 | [diff] [blame] | 22 | #include FT_TRIGONOMETRY_H |
David Turner | 19ed8af | 2000-12-08 02:42:29 +0000 | [diff] [blame] | 23 | #include FT_SYSTEM_H |
Werner Lemberg | 1f7f0e8 | 2001-06-06 17:30:41 +0000 | [diff] [blame] | 24 | |
David Turner | 8d3a401 | 2001-03-20 11:14:24 +0000 | [diff] [blame] | 25 | #include "ttinterp.h" |
Werner Lemberg | 1f7f0e8 | 2001-06-06 17:30:41 +0000 | [diff] [blame] | 26 | |
| 27 | #include "tterrors.h" |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 28 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 29 | |
David Turner | 6aa260c | 2006-08-25 22:45:13 +0000 | [diff] [blame] | 30 | #ifdef TT_USE_BYTECODE_INTERPRETER |
David Turner | 1ab77fd | 2000-02-10 18:08:17 +0000 | [diff] [blame] | 31 | |
| 32 | |
Werner Lemberg | 9f051a7 | 2003-11-25 18:15:56 +0000 | [diff] [blame] | 33 | #define TT_MULFIX FT_MulFix |
| 34 | #define TT_MULDIV FT_MulDiv |
| 35 | #define TT_MULDIV_NO_ROUND FT_MulDiv_No_Round |
| 36 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 37 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 38 | /*************************************************************************/ |
| 39 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 40 | /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ |
| 41 | /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ |
| 42 | /* messages during execution. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 43 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 44 | #undef FT_COMPONENT |
| 45 | #define FT_COMPONENT trace_ttinterp |
| 46 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 47 | /*************************************************************************/ |
| 48 | /* */ |
| 49 | /* In order to detect infinite loops in the code, we set up a counter */ |
| 50 | /* within the run loop. A single stroke of interpretation is now */ |
Werner Lemberg | 6e87ed9 | 2007-01-26 22:18:56 +0000 | [diff] [blame] | 51 | /* limited to a maximal number of opcodes defined below. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 52 | /* */ |
| 53 | #define MAX_RUNNABLE_OPCODES 1000000L |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 54 | |
| 55 | |
| 56 | /*************************************************************************/ |
| 57 | /* */ |
| 58 | /* There are two kinds of implementations: */ |
| 59 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 60 | /* a. static implementation */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 61 | /* */ |
| 62 | /* The current execution context is a static variable, which fields */ |
| 63 | /* are accessed directly by the interpreter during execution. The */ |
| 64 | /* context is named `cur'. */ |
| 65 | /* */ |
| 66 | /* This version is non-reentrant, of course. */ |
| 67 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 68 | /* b. indirect implementation */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 69 | /* */ |
| 70 | /* The current execution context is passed to _each_ function as its */ |
| 71 | /* first argument, and each field is thus accessed indirectly. */ |
| 72 | /* */ |
| 73 | /* This version is fully re-entrant. */ |
| 74 | /* */ |
| 75 | /* The idea is that an indirect implementation may be slower to execute */ |
| 76 | /* on low-end processors that are used in some systems (like 386s or */ |
| 77 | /* even 486s). */ |
| 78 | /* */ |
| 79 | /* As a consequence, the indirect implementation is now the default, as */ |
| 80 | /* its performance costs can be considered negligible in our context. */ |
| 81 | /* Note, however, that we kept the same source with macros because: */ |
| 82 | /* */ |
| 83 | /* - The code is kept very close in design to the Pascal code used for */ |
| 84 | /* development. */ |
| 85 | /* */ |
| 86 | /* - It's much more readable that way! */ |
| 87 | /* */ |
| 88 | /* - It's still open to experimentation and tuning. */ |
| 89 | /* */ |
| 90 | /*************************************************************************/ |
| 91 | |
| 92 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 93 | #ifndef TT_CONFIG_OPTION_STATIC_INTERPRETER /* indirect implementation */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 94 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 95 | #define CUR (*exc) /* see ttobjs.h */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 96 | |
Werner Lemberg | 674ba91 | 2005-11-16 18:09:27 +0000 | [diff] [blame] | 97 | /*************************************************************************/ |
| 98 | /* */ |
| 99 | /* This macro is used whenever `exec' is unused in a function, to avoid */ |
| 100 | /* stupid warnings from pedantic compilers. */ |
| 101 | /* */ |
| 102 | #define FT_UNUSED_EXEC FT_UNUSED( exc ) |
David Turner | f7cc181 | 2005-11-15 17:30:56 +0000 | [diff] [blame] | 103 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 104 | #else /* static implementation */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 105 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 106 | #define CUR cur |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 107 | |
Werner Lemberg | 674ba91 | 2005-11-16 18:09:27 +0000 | [diff] [blame] | 108 | #define FT_UNUSED_EXEC int __dummy = __dummy |
David Turner | f7cc181 | 2005-11-15 17:30:56 +0000 | [diff] [blame] | 109 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 110 | static |
| 111 | TT_ExecContextRec cur; /* static exec. context variable */ |
| 112 | |
| 113 | /* apparently, we have a _lot_ of direct indexing when accessing */ |
| 114 | /* the static `cur', which makes the code bigger (due to all the */ |
| 115 | /* four bytes addresses). */ |
| 116 | |
| 117 | #endif /* TT_CONFIG_OPTION_STATIC_INTERPRETER */ |
| 118 | |
| 119 | |
| 120 | /*************************************************************************/ |
| 121 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 122 | /* The instruction argument stack. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 123 | /* */ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 124 | #define INS_ARG EXEC_OP_ FT_Long* args /* see ttobjs.h for EXEC_OP_ */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 125 | |
| 126 | |
| 127 | /*************************************************************************/ |
| 128 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 129 | /* This macro is used whenever `args' is unused in a function, to avoid */ |
| 130 | /* stupid warnings from pedantic compilers. */ |
| 131 | /* */ |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 132 | #define FT_UNUSED_ARG FT_UNUSED_EXEC; FT_UNUSED( args ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 133 | |
| 134 | |
| 135 | /*************************************************************************/ |
| 136 | /* */ |
| 137 | /* The following macros hide the use of EXEC_ARG and EXEC_ARG_ to */ |
Werner Lemberg | 6e87ed9 | 2007-01-26 22:18:56 +0000 | [diff] [blame] | 138 | /* increase readability of the code. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 139 | /* */ |
| 140 | /*************************************************************************/ |
| 141 | |
| 142 | |
| 143 | #define SKIP_Code() \ |
| 144 | SkipCode( EXEC_ARG ) |
| 145 | |
| 146 | #define GET_ShortIns() \ |
| 147 | GetShortIns( EXEC_ARG ) |
| 148 | |
| 149 | #define NORMalize( x, y, v ) \ |
| 150 | Normalize( EXEC_ARG_ x, y, v ) |
| 151 | |
| 152 | #define SET_SuperRound( scale, flags ) \ |
| 153 | SetSuperRound( EXEC_ARG_ scale, flags ) |
| 154 | |
| 155 | #define ROUND_None( d, c ) \ |
| 156 | Round_None( EXEC_ARG_ d, c ) |
| 157 | |
| 158 | #define INS_Goto_CodeRange( range, ip ) \ |
| 159 | Ins_Goto_CodeRange( EXEC_ARG_ range, ip ) |
| 160 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 161 | #define CUR_Func_move( z, p, d ) \ |
| 162 | CUR.func_move( EXEC_ARG_ z, p, d ) |
| 163 | |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 164 | #define CUR_Func_move_orig( z, p, d ) \ |
| 165 | CUR.func_move_orig( EXEC_ARG_ z, p, d ) |
| 166 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 167 | #define CUR_Func_round( d, c ) \ |
| 168 | CUR.func_round( EXEC_ARG_ d, c ) |
| 169 | |
| 170 | #define CUR_Func_read_cvt( index ) \ |
| 171 | CUR.func_read_cvt( EXEC_ARG_ index ) |
| 172 | |
| 173 | #define CUR_Func_write_cvt( index, val ) \ |
| 174 | CUR.func_write_cvt( EXEC_ARG_ index, val ) |
| 175 | |
| 176 | #define CUR_Func_move_cvt( index, val ) \ |
| 177 | CUR.func_move_cvt( EXEC_ARG_ index, val ) |
| 178 | |
| 179 | #define CURRENT_Ratio() \ |
| 180 | Current_Ratio( EXEC_ARG ) |
| 181 | |
| 182 | #define CURRENT_Ppem() \ |
| 183 | Current_Ppem( EXEC_ARG ) |
| 184 | |
| 185 | #define CUR_Ppem() \ |
| 186 | Cur_PPEM( EXEC_ARG ) |
| 187 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 188 | #define INS_SxVTL( a, b, c, d ) \ |
| 189 | Ins_SxVTL( EXEC_ARG_ a, b, c, d ) |
| 190 | |
| 191 | #define COMPUTE_Funcs() \ |
| 192 | Compute_Funcs( EXEC_ARG ) |
| 193 | |
| 194 | #define COMPUTE_Round( a ) \ |
| 195 | Compute_Round( EXEC_ARG_ a ) |
| 196 | |
| 197 | #define COMPUTE_Point_Displacement( a, b, c, d ) \ |
| 198 | Compute_Point_Displacement( EXEC_ARG_ a, b, c, d ) |
| 199 | |
| 200 | #define MOVE_Zp2_Point( a, b, c, t ) \ |
| 201 | Move_Zp2_Point( EXEC_ARG_ a, b, c, t ) |
| 202 | |
| 203 | |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 204 | #define CUR_Func_project( v1, v2 ) \ |
| 205 | CUR.func_project( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y ) |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 206 | |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 207 | #define CUR_Func_dualproj( v1, v2 ) \ |
| 208 | CUR.func_dualproj( EXEC_ARG_ (v1)->x - (v2)->x, (v1)->y - (v2)->y ) |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 209 | |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 210 | #define CUR_fast_project( v ) \ |
| 211 | CUR.func_project( EXEC_ARG_ (v)->x, (v)->y ) |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 212 | |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 213 | #define CUR_fast_dualproj( v ) \ |
| 214 | CUR.func_dualproj( EXEC_ARG_ (v)->x, (v)->y ) |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 215 | |
| 216 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 217 | /*************************************************************************/ |
| 218 | /* */ |
| 219 | /* Instruction dispatch function, as used by the interpreter. */ |
| 220 | /* */ |
| 221 | typedef void (*TInstruction_Function)( INS_ARG ); |
| 222 | |
| 223 | |
| 224 | /*************************************************************************/ |
| 225 | /* */ |
| 226 | /* A simple bounds-checking macro. */ |
| 227 | /* */ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 228 | #define BOUNDS( x, n ) ( (FT_UInt)(x) >= (FT_UInt)(n) ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 229 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 230 | #undef SUCCESS |
| 231 | #define SUCCESS 0 |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 232 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 233 | #undef FAILURE |
| 234 | #define FAILURE 1 |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 235 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 236 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 237 | #define GUESS_VECTOR( V ) \ |
| 238 | if ( CUR.face->unpatented_hinting ) \ |
| 239 | { \ |
| 240 | CUR.GS.V.x = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0x4000 : 0 ); \ |
| 241 | CUR.GS.V.y = (FT_F2Dot14)( CUR.GS.both_x_axis ? 0 : 0x4000 ); \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 242 | } |
| 243 | #else |
| 244 | #define GUESS_VECTOR( V ) |
| 245 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 246 | |
| 247 | /*************************************************************************/ |
| 248 | /* */ |
| 249 | /* CODERANGE FUNCTIONS */ |
| 250 | /* */ |
| 251 | /*************************************************************************/ |
| 252 | |
| 253 | |
| 254 | /*************************************************************************/ |
| 255 | /* */ |
| 256 | /* <Function> */ |
| 257 | /* TT_Goto_CodeRange */ |
| 258 | /* */ |
| 259 | /* <Description> */ |
| 260 | /* Switches to a new code range (updates the code related elements in */ |
| 261 | /* `exec', and `IP'). */ |
| 262 | /* */ |
| 263 | /* <Input> */ |
| 264 | /* range :: The new execution code range. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 265 | /* */ |
| 266 | /* IP :: The new IP in the new code range. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 267 | /* */ |
| 268 | /* <InOut> */ |
| 269 | /* exec :: The target execution context. */ |
| 270 | /* */ |
| 271 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 272 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 273 | /* */ |
David Turner | bc82f1b | 2002-03-01 02:26:22 +0000 | [diff] [blame] | 274 | FT_LOCAL_DEF( FT_Error ) |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 275 | TT_Goto_CodeRange( TT_ExecContext exec, |
| 276 | FT_Int range, |
| 277 | FT_Long IP ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 278 | { |
| 279 | TT_CodeRange* coderange; |
| 280 | |
| 281 | |
Werner Lemberg | b1e6e59 | 2002-03-29 07:43:04 +0000 | [diff] [blame] | 282 | FT_ASSERT( range >= 1 && range <= 3 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 283 | |
| 284 | coderange = &exec->codeRangeTable[range - 1]; |
| 285 | |
Werner Lemberg | b1e6e59 | 2002-03-29 07:43:04 +0000 | [diff] [blame] | 286 | FT_ASSERT( coderange->base != NULL ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 287 | |
| 288 | /* NOTE: Because the last instruction of a program may be a CALL */ |
| 289 | /* which will return to the first byte *after* the code */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 290 | /* range, we test for IP <= Size instead of IP < Size. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 291 | /* */ |
Werner Lemberg | b1e6e59 | 2002-03-29 07:43:04 +0000 | [diff] [blame] | 292 | FT_ASSERT( (FT_ULong)IP <= coderange->size ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 293 | |
| 294 | exec->code = coderange->base; |
| 295 | exec->codeSize = coderange->size; |
| 296 | exec->IP = IP; |
| 297 | exec->curRange = range; |
| 298 | |
| 299 | return TT_Err_Ok; |
| 300 | } |
| 301 | |
| 302 | |
| 303 | /*************************************************************************/ |
| 304 | /* */ |
| 305 | /* <Function> */ |
| 306 | /* TT_Set_CodeRange */ |
| 307 | /* */ |
| 308 | /* <Description> */ |
| 309 | /* Sets a code range. */ |
| 310 | /* */ |
| 311 | /* <Input> */ |
| 312 | /* range :: The code range index. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 313 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 314 | /* base :: The new code base. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 315 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 316 | /* length :: The range size in bytes. */ |
| 317 | /* */ |
| 318 | /* <InOut> */ |
| 319 | /* exec :: The target execution context. */ |
| 320 | /* */ |
| 321 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 322 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 323 | /* */ |
David Turner | bc82f1b | 2002-03-01 02:26:22 +0000 | [diff] [blame] | 324 | FT_LOCAL_DEF( FT_Error ) |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 325 | TT_Set_CodeRange( TT_ExecContext exec, |
| 326 | FT_Int range, |
| 327 | void* base, |
| 328 | FT_Long length ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 329 | { |
Werner Lemberg | b1e6e59 | 2002-03-29 07:43:04 +0000 | [diff] [blame] | 330 | FT_ASSERT( range >= 1 && range <= 3 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 331 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 332 | exec->codeRangeTable[range - 1].base = (FT_Byte*)base; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 333 | exec->codeRangeTable[range - 1].size = length; |
| 334 | |
| 335 | return TT_Err_Ok; |
| 336 | } |
| 337 | |
| 338 | |
| 339 | /*************************************************************************/ |
| 340 | /* */ |
| 341 | /* <Function> */ |
| 342 | /* TT_Clear_CodeRange */ |
| 343 | /* */ |
| 344 | /* <Description> */ |
| 345 | /* Clears a code range. */ |
| 346 | /* */ |
| 347 | /* <Input> */ |
| 348 | /* range :: The code range index. */ |
| 349 | /* */ |
| 350 | /* <InOut> */ |
| 351 | /* exec :: The target execution context. */ |
| 352 | /* */ |
| 353 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 354 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 355 | /* */ |
| 356 | /* <Note> */ |
| 357 | /* Does not set the Error variable. */ |
| 358 | /* */ |
David Turner | bc82f1b | 2002-03-01 02:26:22 +0000 | [diff] [blame] | 359 | FT_LOCAL_DEF( FT_Error ) |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 360 | TT_Clear_CodeRange( TT_ExecContext exec, |
| 361 | FT_Int range ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 362 | { |
Werner Lemberg | b1e6e59 | 2002-03-29 07:43:04 +0000 | [diff] [blame] | 363 | FT_ASSERT( range >= 1 && range <= 3 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 364 | |
| 365 | exec->codeRangeTable[range - 1].base = NULL; |
| 366 | exec->codeRangeTable[range - 1].size = 0; |
| 367 | |
| 368 | return TT_Err_Ok; |
| 369 | } |
| 370 | |
| 371 | |
| 372 | /*************************************************************************/ |
| 373 | /* */ |
| 374 | /* EXECUTION CONTEXT ROUTINES */ |
| 375 | /* */ |
| 376 | /*************************************************************************/ |
| 377 | |
| 378 | |
| 379 | /*************************************************************************/ |
| 380 | /* */ |
| 381 | /* <Function> */ |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 382 | /* TT_Done_Context */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 383 | /* */ |
| 384 | /* <Description> */ |
| 385 | /* Destroys a given context. */ |
| 386 | /* */ |
| 387 | /* <Input> */ |
| 388 | /* exec :: A handle to the target execution context. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 389 | /* */ |
| 390 | /* memory :: A handle to the parent memory object. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 391 | /* */ |
| 392 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 393 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 394 | /* */ |
| 395 | /* <Note> */ |
| 396 | /* Only the glyph loader and debugger should call this function. */ |
| 397 | /* */ |
David Turner | bc82f1b | 2002-03-01 02:26:22 +0000 | [diff] [blame] | 398 | FT_LOCAL_DEF( FT_Error ) |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 399 | TT_Done_Context( TT_ExecContext exec ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 400 | { |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 401 | FT_Memory memory = exec->memory; |
| 402 | |
| 403 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 404 | /* points zone */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 405 | exec->maxPoints = 0; |
| 406 | exec->maxContours = 0; |
| 407 | |
| 408 | /* free stack */ |
David Turner | e459d74 | 2002-03-22 13:52:37 +0000 | [diff] [blame] | 409 | FT_FREE( exec->stack ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 410 | exec->stackSize = 0; |
| 411 | |
| 412 | /* free call stack */ |
David Turner | e459d74 | 2002-03-22 13:52:37 +0000 | [diff] [blame] | 413 | FT_FREE( exec->callStack ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 414 | exec->callSize = 0; |
| 415 | exec->callTop = 0; |
| 416 | |
| 417 | /* free glyph code range */ |
David Turner | e459d74 | 2002-03-22 13:52:37 +0000 | [diff] [blame] | 418 | FT_FREE( exec->glyphIns ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 419 | exec->glyphSize = 0; |
| 420 | |
| 421 | exec->size = NULL; |
| 422 | exec->face = NULL; |
| 423 | |
David Turner | e459d74 | 2002-03-22 13:52:37 +0000 | [diff] [blame] | 424 | FT_FREE( exec ); |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 425 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 426 | return TT_Err_Ok; |
| 427 | } |
| 428 | |
| 429 | |
| 430 | /*************************************************************************/ |
| 431 | /* */ |
| 432 | /* <Function> */ |
| 433 | /* Init_Context */ |
| 434 | /* */ |
| 435 | /* <Description> */ |
| 436 | /* Initializes a context object. */ |
| 437 | /* */ |
| 438 | /* <Input> */ |
| 439 | /* memory :: A handle to the parent memory object. */ |
| 440 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 441 | /* <InOut> */ |
| 442 | /* exec :: A handle to the target execution context. */ |
| 443 | /* */ |
| 444 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 445 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 446 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 447 | static FT_Error |
| 448 | Init_Context( TT_ExecContext exec, |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 449 | FT_Memory memory ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 450 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 451 | FT_Error error; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 452 | |
| 453 | |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 454 | FT_TRACE1(( "Init_Context: new object at 0x%08p\n", exec )); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 455 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 456 | exec->memory = memory; |
| 457 | exec->callSize = 32; |
| 458 | |
David Turner | e459d74 | 2002-03-22 13:52:37 +0000 | [diff] [blame] | 459 | if ( FT_NEW_ARRAY( exec->callStack, exec->callSize ) ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 460 | goto Fail_Memory; |
| 461 | |
| 462 | /* all values in the context are set to 0 already, but this is */ |
| 463 | /* here as a remainder */ |
| 464 | exec->maxPoints = 0; |
| 465 | exec->maxContours = 0; |
| 466 | |
| 467 | exec->stackSize = 0; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 468 | exec->glyphSize = 0; |
| 469 | |
| 470 | exec->stack = NULL; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 471 | exec->glyphIns = NULL; |
| 472 | |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 473 | exec->face = NULL; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 474 | exec->size = NULL; |
| 475 | |
| 476 | return TT_Err_Ok; |
| 477 | |
| 478 | Fail_Memory: |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 479 | FT_ERROR(( "Init_Context: not enough memory for 0x%08lx\n", |
| 480 | (FT_Long)exec )); |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 481 | TT_Done_Context( exec ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 482 | |
| 483 | return error; |
| 484 | } |
| 485 | |
| 486 | |
| 487 | /*************************************************************************/ |
| 488 | /* */ |
| 489 | /* <Function> */ |
| 490 | /* Update_Max */ |
| 491 | /* */ |
| 492 | /* <Description> */ |
| 493 | /* Checks the size of a buffer and reallocates it if necessary. */ |
| 494 | /* */ |
| 495 | /* <Input> */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 496 | /* memory :: A handle to the parent memory object. */ |
| 497 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 498 | /* multiplier :: The size in bytes of each element in the buffer. */ |
| 499 | /* */ |
| 500 | /* new_max :: The new capacity (size) of the buffer. */ |
| 501 | /* */ |
| 502 | /* <InOut> */ |
| 503 | /* size :: The address of the buffer's current size expressed */ |
| 504 | /* in elements. */ |
| 505 | /* */ |
| 506 | /* buff :: The address of the buffer base pointer. */ |
| 507 | /* */ |
| 508 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 509 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 510 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 511 | static FT_Error |
| 512 | Update_Max( FT_Memory memory, |
| 513 | FT_ULong* size, |
| 514 | FT_Long multiplier, |
David Turner | e365453 | 2007-01-13 00:19:18 +0000 | [diff] [blame] | 515 | void* _pbuff, |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 516 | FT_ULong new_max ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 517 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 518 | FT_Error error; |
David Turner | e365453 | 2007-01-13 00:19:18 +0000 | [diff] [blame] | 519 | void** pbuff = (void**)_pbuff; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 520 | |
| 521 | |
| 522 | if ( *size < new_max ) |
| 523 | { |
David Turner | e365453 | 2007-01-13 00:19:18 +0000 | [diff] [blame] | 524 | if ( FT_REALLOC( *pbuff, *size * multiplier, new_max * multiplier ) ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 525 | return error; |
| 526 | *size = new_max; |
| 527 | } |
| 528 | |
| 529 | return TT_Err_Ok; |
| 530 | } |
| 531 | |
| 532 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 533 | /*************************************************************************/ |
| 534 | /* */ |
| 535 | /* <Function> */ |
| 536 | /* TT_Load_Context */ |
| 537 | /* */ |
| 538 | /* <Description> */ |
| 539 | /* Prepare an execution context for glyph hinting. */ |
| 540 | /* */ |
| 541 | /* <Input> */ |
| 542 | /* face :: A handle to the source face object. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 543 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 544 | /* size :: A handle to the source size object. */ |
| 545 | /* */ |
| 546 | /* <InOut> */ |
| 547 | /* exec :: A handle to the target execution context. */ |
| 548 | /* */ |
| 549 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 550 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 551 | /* */ |
| 552 | /* <Note> */ |
| 553 | /* Only the glyph loader and debugger should call this function. */ |
| 554 | /* */ |
David Turner | bc82f1b | 2002-03-01 02:26:22 +0000 | [diff] [blame] | 555 | FT_LOCAL_DEF( FT_Error ) |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 556 | TT_Load_Context( TT_ExecContext exec, |
| 557 | TT_Face face, |
| 558 | TT_Size size ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 559 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 560 | FT_Int i; |
| 561 | FT_ULong tmp; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 562 | TT_MaxProfile* maxp; |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 563 | FT_Error error; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 564 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 565 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 566 | exec->face = face; |
| 567 | maxp = &face->max_profile; |
| 568 | exec->size = size; |
| 569 | |
| 570 | if ( size ) |
| 571 | { |
| 572 | exec->numFDefs = size->num_function_defs; |
| 573 | exec->maxFDefs = size->max_function_defs; |
| 574 | exec->numIDefs = size->num_instruction_defs; |
| 575 | exec->maxIDefs = size->max_instruction_defs; |
| 576 | exec->FDefs = size->function_defs; |
| 577 | exec->IDefs = size->instruction_defs; |
| 578 | exec->tt_metrics = size->ttmetrics; |
David Turner | ba4511b | 2003-02-18 22:25:22 +0000 | [diff] [blame] | 579 | exec->metrics = size->metrics; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 580 | |
| 581 | exec->maxFunc = size->max_func; |
| 582 | exec->maxIns = size->max_ins; |
| 583 | |
| 584 | for ( i = 0; i < TT_MAX_CODE_RANGES; i++ ) |
| 585 | exec->codeRangeTable[i] = size->codeRangeTable[i]; |
| 586 | |
| 587 | /* set graphics state */ |
| 588 | exec->GS = size->GS; |
| 589 | |
| 590 | exec->cvtSize = size->cvt_size; |
| 591 | exec->cvt = size->cvt; |
| 592 | |
| 593 | exec->storeSize = size->storage_size; |
| 594 | exec->storage = size->storage; |
| 595 | |
| 596 | exec->twilight = size->twilight; |
| 597 | } |
| 598 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 599 | /* XXX: We reserve a little more elements on the stack to deal safely */ |
| 600 | /* with broken fonts like arialbs, courbs, timesbs, etc. */ |
| 601 | tmp = exec->stackSize; |
| 602 | error = Update_Max( exec->memory, |
| 603 | &tmp, |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 604 | sizeof ( FT_F26Dot6 ), |
David Turner | e365453 | 2007-01-13 00:19:18 +0000 | [diff] [blame] | 605 | (void*)&exec->stack, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 606 | maxp->maxStackElements + 32 ); |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 607 | exec->stackSize = (FT_UInt)tmp; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 608 | if ( error ) |
| 609 | return error; |
| 610 | |
| 611 | tmp = exec->glyphSize; |
| 612 | error = Update_Max( exec->memory, |
| 613 | &tmp, |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 614 | sizeof ( FT_Byte ), |
David Turner | e365453 | 2007-01-13 00:19:18 +0000 | [diff] [blame] | 615 | (void*)&exec->glyphIns, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 616 | maxp->maxSizeOfInstructions ); |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 617 | exec->glyphSize = (FT_UShort)tmp; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 618 | if ( error ) |
| 619 | return error; |
| 620 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 621 | exec->pts.n_points = 0; |
| 622 | exec->pts.n_contours = 0; |
Werner Lemberg | e12ed56 | 2007-06-17 05:31:23 +0000 | [diff] [blame] | 623 | |
David Turner | 815911a | 2007-06-16 17:07:20 +0000 | [diff] [blame] | 624 | exec->zp1 = exec->pts; |
| 625 | exec->zp2 = exec->pts; |
| 626 | exec->zp0 = exec->pts; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 627 | |
| 628 | exec->instruction_trap = FALSE; |
| 629 | |
| 630 | return TT_Err_Ok; |
| 631 | } |
| 632 | |
| 633 | |
| 634 | /*************************************************************************/ |
| 635 | /* */ |
| 636 | /* <Function> */ |
| 637 | /* TT_Save_Context */ |
| 638 | /* */ |
| 639 | /* <Description> */ |
| 640 | /* Saves the code ranges in a `size' object. */ |
| 641 | /* */ |
| 642 | /* <Input> */ |
| 643 | /* exec :: A handle to the source execution context. */ |
| 644 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 645 | /* <InOut> */ |
| 646 | /* size :: A handle to the target size object. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 647 | /* */ |
| 648 | /* <Return> */ |
Werner Lemberg | a929ba9 | 2000-06-25 06:47:11 +0000 | [diff] [blame] | 649 | /* FreeType error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 650 | /* */ |
| 651 | /* <Note> */ |
| 652 | /* Only the glyph loader and debugger should call this function. */ |
| 653 | /* */ |
David Turner | bc82f1b | 2002-03-01 02:26:22 +0000 | [diff] [blame] | 654 | FT_LOCAL_DEF( FT_Error ) |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 655 | TT_Save_Context( TT_ExecContext exec, |
| 656 | TT_Size size ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 657 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 658 | FT_Int i; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 659 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 660 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 661 | /* XXXX: Will probably disappear soon with all the code range */ |
| 662 | /* management, which is now rather obsolete. */ |
| 663 | /* */ |
| 664 | size->num_function_defs = exec->numFDefs; |
| 665 | size->num_instruction_defs = exec->numIDefs; |
| 666 | |
| 667 | size->max_func = exec->maxFunc; |
| 668 | size->max_ins = exec->maxIns; |
| 669 | |
| 670 | for ( i = 0; i < TT_MAX_CODE_RANGES; i++ ) |
| 671 | size->codeRangeTable[i] = exec->codeRangeTable[i]; |
| 672 | |
| 673 | return TT_Err_Ok; |
| 674 | } |
| 675 | |
| 676 | |
| 677 | /*************************************************************************/ |
| 678 | /* */ |
| 679 | /* <Function> */ |
| 680 | /* TT_Run_Context */ |
| 681 | /* */ |
| 682 | /* <Description> */ |
| 683 | /* Executes one or more instructions in the execution context. */ |
| 684 | /* */ |
| 685 | /* <Input> */ |
| 686 | /* debug :: A Boolean flag. If set, the function sets some internal */ |
| 687 | /* variables and returns immediately, otherwise TT_RunIns() */ |
| 688 | /* is called. */ |
| 689 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 690 | /* This is commented out currently. */ |
| 691 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 692 | /* <Input> */ |
| 693 | /* exec :: A handle to the target execution context. */ |
| 694 | /* */ |
| 695 | /* <Return> */ |
David Turner | f0df85b | 2000-06-22 00:17:42 +0000 | [diff] [blame] | 696 | /* TrueTyoe error code. 0 means success. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 697 | /* */ |
| 698 | /* <Note> */ |
| 699 | /* Only the glyph loader and debugger should call this function. */ |
| 700 | /* */ |
David Turner | bc82f1b | 2002-03-01 02:26:22 +0000 | [diff] [blame] | 701 | FT_LOCAL_DEF( FT_Error ) |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 702 | TT_Run_Context( TT_ExecContext exec, |
| 703 | FT_Bool debug ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 704 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 705 | FT_Error error; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 706 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 707 | |
| 708 | if ( ( error = TT_Goto_CodeRange( exec, tt_coderange_glyph, 0 ) ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 709 | != TT_Err_Ok ) |
| 710 | return error; |
| 711 | |
| 712 | exec->zp0 = exec->pts; |
| 713 | exec->zp1 = exec->pts; |
| 714 | exec->zp2 = exec->pts; |
| 715 | |
| 716 | exec->GS.gep0 = 1; |
| 717 | exec->GS.gep1 = 1; |
| 718 | exec->GS.gep2 = 1; |
| 719 | |
| 720 | exec->GS.projVector.x = 0x4000; |
| 721 | exec->GS.projVector.y = 0x0000; |
| 722 | |
| 723 | exec->GS.freeVector = exec->GS.projVector; |
| 724 | exec->GS.dualVector = exec->GS.projVector; |
| 725 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 726 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 727 | exec->GS.both_x_axis = TRUE; |
| 728 | #endif |
| 729 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 730 | exec->GS.round_state = 1; |
| 731 | exec->GS.loop = 1; |
| 732 | |
| 733 | /* some glyphs leave something on the stack. so we clean it */ |
| 734 | /* before a new execution. */ |
| 735 | exec->top = 0; |
| 736 | exec->callTop = 0; |
| 737 | |
| 738 | #if 1 |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 739 | FT_UNUSED( debug ); |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 740 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 741 | return exec->face->interpreter( exec ); |
| 742 | #else |
| 743 | if ( !debug ) |
| 744 | return TT_RunIns( exec ); |
| 745 | else |
| 746 | return TT_Err_Ok; |
| 747 | #endif |
| 748 | } |
| 749 | |
| 750 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 751 | const TT_GraphicsState tt_default_graphics_state = |
| 752 | { |
| 753 | 0, 0, 0, |
| 754 | { 0x4000, 0 }, |
| 755 | { 0x4000, 0 }, |
| 756 | { 0x4000, 0 }, |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 757 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 758 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 759 | TRUE, |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 760 | #endif |
| 761 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 762 | 1, 64, 1, |
| 763 | TRUE, 68, 0, 0, 9, 3, |
| 764 | 0, FALSE, 2, 1, 1, 1 |
| 765 | }; |
| 766 | |
| 767 | |
Werner Lemberg | 90a0330 | 2000-11-07 17:21:11 +0000 | [diff] [blame] | 768 | /* documentation is in ttinterp.h */ |
| 769 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 770 | FT_EXPORT_DEF( TT_ExecContext ) |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 771 | TT_New_Context( TT_Driver driver ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 772 | { |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 773 | TT_ExecContext exec; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 774 | FT_Memory memory; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 775 | |
| 776 | |
David Turner | f0df85b | 2000-06-22 00:17:42 +0000 | [diff] [blame] | 777 | memory = driver->root.root.memory; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 778 | exec = driver->context; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 779 | |
| 780 | if ( !driver->context ) |
| 781 | { |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 782 | FT_Error error; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 783 | |
| 784 | |
| 785 | /* allocate object */ |
David Turner | e459d74 | 2002-03-22 13:52:37 +0000 | [diff] [blame] | 786 | if ( FT_NEW( exec ) ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 787 | goto Exit; |
| 788 | |
| 789 | /* initialize it */ |
Wu, Chia-I (吳佳一) | 0142e6a | 2005-08-16 01:54:59 +0000 | [diff] [blame] | 790 | error = Init_Context( exec, memory ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 791 | if ( error ) |
| 792 | goto Fail; |
| 793 | |
| 794 | /* store it into the driver */ |
| 795 | driver->context = exec; |
| 796 | } |
| 797 | |
| 798 | Exit: |
| 799 | return driver->context; |
| 800 | |
| 801 | Fail: |
David Turner | e459d74 | 2002-03-22 13:52:37 +0000 | [diff] [blame] | 802 | FT_FREE( exec ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 803 | |
| 804 | return 0; |
| 805 | } |
| 806 | |
| 807 | |
| 808 | /*************************************************************************/ |
| 809 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 810 | /* Before an opcode is executed, the interpreter verifies that there are */ |
Werner Lemberg | 33febc0 | 2004-10-09 07:07:43 +0000 | [diff] [blame] | 811 | /* enough arguments on the stack, with the help of the `Pop_Push_Count' */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 812 | /* table. */ |
| 813 | /* */ |
| 814 | /* For each opcode, the first column gives the number of arguments that */ |
| 815 | /* are popped from the stack; the second one gives the number of those */ |
| 816 | /* that are pushed in result. */ |
| 817 | /* */ |
Werner Lemberg | 33febc0 | 2004-10-09 07:07:43 +0000 | [diff] [blame] | 818 | /* Opcodes which have a varying number of parameters in the data stream */ |
| 819 | /* (NPUSHB, NPUSHW) are handled specially; they have a negative value in */ |
| 820 | /* the `opcode_length' table, and the value in `Pop_Push_Count' is set */ |
| 821 | /* to zero. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 822 | /* */ |
| 823 | /*************************************************************************/ |
| 824 | |
| 825 | |
| 826 | #undef PACK |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 827 | #define PACK( x, y ) ( ( x << 4 ) | y ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 828 | |
| 829 | |
| 830 | static |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 831 | const FT_Byte Pop_Push_Count[256] = |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 832 | { |
| 833 | /* opcodes are gathered in groups of 16 */ |
| 834 | /* please keep the spaces as they are */ |
| 835 | |
| 836 | /* SVTCA y */ PACK( 0, 0 ), |
| 837 | /* SVTCA x */ PACK( 0, 0 ), |
| 838 | /* SPvTCA y */ PACK( 0, 0 ), |
| 839 | /* SPvTCA x */ PACK( 0, 0 ), |
| 840 | /* SFvTCA y */ PACK( 0, 0 ), |
| 841 | /* SFvTCA x */ PACK( 0, 0 ), |
| 842 | /* SPvTL // */ PACK( 2, 0 ), |
| 843 | /* SPvTL + */ PACK( 2, 0 ), |
| 844 | /* SFvTL // */ PACK( 2, 0 ), |
| 845 | /* SFvTL + */ PACK( 2, 0 ), |
| 846 | /* SPvFS */ PACK( 2, 0 ), |
| 847 | /* SFvFS */ PACK( 2, 0 ), |
| 848 | /* GPV */ PACK( 0, 2 ), |
| 849 | /* GFV */ PACK( 0, 2 ), |
| 850 | /* SFvTPv */ PACK( 0, 0 ), |
| 851 | /* ISECT */ PACK( 5, 0 ), |
| 852 | |
| 853 | /* SRP0 */ PACK( 1, 0 ), |
| 854 | /* SRP1 */ PACK( 1, 0 ), |
| 855 | /* SRP2 */ PACK( 1, 0 ), |
| 856 | /* SZP0 */ PACK( 1, 0 ), |
| 857 | /* SZP1 */ PACK( 1, 0 ), |
| 858 | /* SZP2 */ PACK( 1, 0 ), |
| 859 | /* SZPS */ PACK( 1, 0 ), |
| 860 | /* SLOOP */ PACK( 1, 0 ), |
| 861 | /* RTG */ PACK( 0, 0 ), |
| 862 | /* RTHG */ PACK( 0, 0 ), |
| 863 | /* SMD */ PACK( 1, 0 ), |
| 864 | /* ELSE */ PACK( 0, 0 ), |
| 865 | /* JMPR */ PACK( 1, 0 ), |
| 866 | /* SCvTCi */ PACK( 1, 0 ), |
| 867 | /* SSwCi */ PACK( 1, 0 ), |
| 868 | /* SSW */ PACK( 1, 0 ), |
| 869 | |
| 870 | /* DUP */ PACK( 1, 2 ), |
| 871 | /* POP */ PACK( 1, 0 ), |
| 872 | /* CLEAR */ PACK( 0, 0 ), |
| 873 | /* SWAP */ PACK( 2, 2 ), |
| 874 | /* DEPTH */ PACK( 0, 1 ), |
| 875 | /* CINDEX */ PACK( 1, 1 ), |
| 876 | /* MINDEX */ PACK( 1, 0 ), |
| 877 | /* AlignPTS */ PACK( 2, 0 ), |
| 878 | /* INS_$28 */ PACK( 0, 0 ), |
| 879 | /* UTP */ PACK( 1, 0 ), |
| 880 | /* LOOPCALL */ PACK( 2, 0 ), |
| 881 | /* CALL */ PACK( 1, 0 ), |
| 882 | /* FDEF */ PACK( 1, 0 ), |
| 883 | /* ENDF */ PACK( 0, 0 ), |
| 884 | /* MDAP[0] */ PACK( 1, 0 ), |
| 885 | /* MDAP[1] */ PACK( 1, 0 ), |
| 886 | |
| 887 | /* IUP[0] */ PACK( 0, 0 ), |
| 888 | /* IUP[1] */ PACK( 0, 0 ), |
| 889 | /* SHP[0] */ PACK( 0, 0 ), |
| 890 | /* SHP[1] */ PACK( 0, 0 ), |
| 891 | /* SHC[0] */ PACK( 1, 0 ), |
| 892 | /* SHC[1] */ PACK( 1, 0 ), |
| 893 | /* SHZ[0] */ PACK( 1, 0 ), |
| 894 | /* SHZ[1] */ PACK( 1, 0 ), |
| 895 | /* SHPIX */ PACK( 1, 0 ), |
| 896 | /* IP */ PACK( 0, 0 ), |
| 897 | /* MSIRP[0] */ PACK( 2, 0 ), |
| 898 | /* MSIRP[1] */ PACK( 2, 0 ), |
| 899 | /* AlignRP */ PACK( 0, 0 ), |
| 900 | /* RTDG */ PACK( 0, 0 ), |
| 901 | /* MIAP[0] */ PACK( 2, 0 ), |
| 902 | /* MIAP[1] */ PACK( 2, 0 ), |
| 903 | |
| 904 | /* NPushB */ PACK( 0, 0 ), |
| 905 | /* NPushW */ PACK( 0, 0 ), |
| 906 | /* WS */ PACK( 2, 0 ), |
| 907 | /* RS */ PACK( 1, 1 ), |
| 908 | /* WCvtP */ PACK( 2, 0 ), |
| 909 | /* RCvt */ PACK( 1, 1 ), |
| 910 | /* GC[0] */ PACK( 1, 1 ), |
| 911 | /* GC[1] */ PACK( 1, 1 ), |
| 912 | /* SCFS */ PACK( 2, 0 ), |
| 913 | /* MD[0] */ PACK( 2, 1 ), |
| 914 | /* MD[1] */ PACK( 2, 1 ), |
| 915 | /* MPPEM */ PACK( 0, 1 ), |
| 916 | /* MPS */ PACK( 0, 1 ), |
| 917 | /* FlipON */ PACK( 0, 0 ), |
| 918 | /* FlipOFF */ PACK( 0, 0 ), |
| 919 | /* DEBUG */ PACK( 1, 0 ), |
| 920 | |
| 921 | /* LT */ PACK( 2, 1 ), |
| 922 | /* LTEQ */ PACK( 2, 1 ), |
| 923 | /* GT */ PACK( 2, 1 ), |
| 924 | /* GTEQ */ PACK( 2, 1 ), |
| 925 | /* EQ */ PACK( 2, 1 ), |
| 926 | /* NEQ */ PACK( 2, 1 ), |
| 927 | /* ODD */ PACK( 1, 1 ), |
| 928 | /* EVEN */ PACK( 1, 1 ), |
| 929 | /* IF */ PACK( 1, 0 ), |
| 930 | /* EIF */ PACK( 0, 0 ), |
| 931 | /* AND */ PACK( 2, 1 ), |
| 932 | /* OR */ PACK( 2, 1 ), |
| 933 | /* NOT */ PACK( 1, 1 ), |
| 934 | /* DeltaP1 */ PACK( 1, 0 ), |
| 935 | /* SDB */ PACK( 1, 0 ), |
| 936 | /* SDS */ PACK( 1, 0 ), |
| 937 | |
| 938 | /* ADD */ PACK( 2, 1 ), |
| 939 | /* SUB */ PACK( 2, 1 ), |
| 940 | /* DIV */ PACK( 2, 1 ), |
| 941 | /* MUL */ PACK( 2, 1 ), |
| 942 | /* ABS */ PACK( 1, 1 ), |
| 943 | /* NEG */ PACK( 1, 1 ), |
| 944 | /* FLOOR */ PACK( 1, 1 ), |
| 945 | /* CEILING */ PACK( 1, 1 ), |
| 946 | /* ROUND[0] */ PACK( 1, 1 ), |
| 947 | /* ROUND[1] */ PACK( 1, 1 ), |
| 948 | /* ROUND[2] */ PACK( 1, 1 ), |
| 949 | /* ROUND[3] */ PACK( 1, 1 ), |
| 950 | /* NROUND[0] */ PACK( 1, 1 ), |
| 951 | /* NROUND[1] */ PACK( 1, 1 ), |
| 952 | /* NROUND[2] */ PACK( 1, 1 ), |
| 953 | /* NROUND[3] */ PACK( 1, 1 ), |
| 954 | |
| 955 | /* WCvtF */ PACK( 2, 0 ), |
| 956 | /* DeltaP2 */ PACK( 1, 0 ), |
| 957 | /* DeltaP3 */ PACK( 1, 0 ), |
| 958 | /* DeltaCn[0] */ PACK( 1, 0 ), |
| 959 | /* DeltaCn[1] */ PACK( 1, 0 ), |
| 960 | /* DeltaCn[2] */ PACK( 1, 0 ), |
| 961 | /* SROUND */ PACK( 1, 0 ), |
| 962 | /* S45Round */ PACK( 1, 0 ), |
| 963 | /* JROT */ PACK( 2, 0 ), |
| 964 | /* JROF */ PACK( 2, 0 ), |
| 965 | /* ROFF */ PACK( 0, 0 ), |
| 966 | /* INS_$7B */ PACK( 0, 0 ), |
| 967 | /* RUTG */ PACK( 0, 0 ), |
| 968 | /* RDTG */ PACK( 0, 0 ), |
| 969 | /* SANGW */ PACK( 1, 0 ), |
| 970 | /* AA */ PACK( 1, 0 ), |
| 971 | |
| 972 | /* FlipPT */ PACK( 0, 0 ), |
| 973 | /* FlipRgON */ PACK( 2, 0 ), |
| 974 | /* FlipRgOFF */ PACK( 2, 0 ), |
| 975 | /* INS_$83 */ PACK( 0, 0 ), |
| 976 | /* INS_$84 */ PACK( 0, 0 ), |
| 977 | /* ScanCTRL */ PACK( 1, 0 ), |
| 978 | /* SDVPTL[0] */ PACK( 2, 0 ), |
| 979 | /* SDVPTL[1] */ PACK( 2, 0 ), |
| 980 | /* GetINFO */ PACK( 1, 1 ), |
| 981 | /* IDEF */ PACK( 1, 0 ), |
| 982 | /* ROLL */ PACK( 3, 3 ), |
| 983 | /* MAX */ PACK( 2, 1 ), |
| 984 | /* MIN */ PACK( 2, 1 ), |
| 985 | /* ScanTYPE */ PACK( 1, 0 ), |
| 986 | /* InstCTRL */ PACK( 2, 0 ), |
| 987 | /* INS_$8F */ PACK( 0, 0 ), |
| 988 | |
| 989 | /* INS_$90 */ PACK( 0, 0 ), |
| 990 | /* INS_$91 */ PACK( 0, 0 ), |
| 991 | /* INS_$92 */ PACK( 0, 0 ), |
| 992 | /* INS_$93 */ PACK( 0, 0 ), |
| 993 | /* INS_$94 */ PACK( 0, 0 ), |
| 994 | /* INS_$95 */ PACK( 0, 0 ), |
| 995 | /* INS_$96 */ PACK( 0, 0 ), |
| 996 | /* INS_$97 */ PACK( 0, 0 ), |
| 997 | /* INS_$98 */ PACK( 0, 0 ), |
| 998 | /* INS_$99 */ PACK( 0, 0 ), |
| 999 | /* INS_$9A */ PACK( 0, 0 ), |
| 1000 | /* INS_$9B */ PACK( 0, 0 ), |
| 1001 | /* INS_$9C */ PACK( 0, 0 ), |
| 1002 | /* INS_$9D */ PACK( 0, 0 ), |
| 1003 | /* INS_$9E */ PACK( 0, 0 ), |
| 1004 | /* INS_$9F */ PACK( 0, 0 ), |
| 1005 | |
| 1006 | /* INS_$A0 */ PACK( 0, 0 ), |
| 1007 | /* INS_$A1 */ PACK( 0, 0 ), |
| 1008 | /* INS_$A2 */ PACK( 0, 0 ), |
| 1009 | /* INS_$A3 */ PACK( 0, 0 ), |
| 1010 | /* INS_$A4 */ PACK( 0, 0 ), |
| 1011 | /* INS_$A5 */ PACK( 0, 0 ), |
| 1012 | /* INS_$A6 */ PACK( 0, 0 ), |
| 1013 | /* INS_$A7 */ PACK( 0, 0 ), |
| 1014 | /* INS_$A8 */ PACK( 0, 0 ), |
| 1015 | /* INS_$A9 */ PACK( 0, 0 ), |
| 1016 | /* INS_$AA */ PACK( 0, 0 ), |
| 1017 | /* INS_$AB */ PACK( 0, 0 ), |
| 1018 | /* INS_$AC */ PACK( 0, 0 ), |
| 1019 | /* INS_$AD */ PACK( 0, 0 ), |
| 1020 | /* INS_$AE */ PACK( 0, 0 ), |
| 1021 | /* INS_$AF */ PACK( 0, 0 ), |
| 1022 | |
| 1023 | /* PushB[0] */ PACK( 0, 1 ), |
| 1024 | /* PushB[1] */ PACK( 0, 2 ), |
| 1025 | /* PushB[2] */ PACK( 0, 3 ), |
| 1026 | /* PushB[3] */ PACK( 0, 4 ), |
| 1027 | /* PushB[4] */ PACK( 0, 5 ), |
| 1028 | /* PushB[5] */ PACK( 0, 6 ), |
| 1029 | /* PushB[6] */ PACK( 0, 7 ), |
| 1030 | /* PushB[7] */ PACK( 0, 8 ), |
| 1031 | /* PushW[0] */ PACK( 0, 1 ), |
| 1032 | /* PushW[1] */ PACK( 0, 2 ), |
| 1033 | /* PushW[2] */ PACK( 0, 3 ), |
| 1034 | /* PushW[3] */ PACK( 0, 4 ), |
| 1035 | /* PushW[4] */ PACK( 0, 5 ), |
| 1036 | /* PushW[5] */ PACK( 0, 6 ), |
| 1037 | /* PushW[6] */ PACK( 0, 7 ), |
| 1038 | /* PushW[7] */ PACK( 0, 8 ), |
| 1039 | |
| 1040 | /* MDRP[00] */ PACK( 1, 0 ), |
| 1041 | /* MDRP[01] */ PACK( 1, 0 ), |
| 1042 | /* MDRP[02] */ PACK( 1, 0 ), |
| 1043 | /* MDRP[03] */ PACK( 1, 0 ), |
| 1044 | /* MDRP[04] */ PACK( 1, 0 ), |
| 1045 | /* MDRP[05] */ PACK( 1, 0 ), |
| 1046 | /* MDRP[06] */ PACK( 1, 0 ), |
| 1047 | /* MDRP[07] */ PACK( 1, 0 ), |
| 1048 | /* MDRP[08] */ PACK( 1, 0 ), |
| 1049 | /* MDRP[09] */ PACK( 1, 0 ), |
| 1050 | /* MDRP[10] */ PACK( 1, 0 ), |
| 1051 | /* MDRP[11] */ PACK( 1, 0 ), |
| 1052 | /* MDRP[12] */ PACK( 1, 0 ), |
| 1053 | /* MDRP[13] */ PACK( 1, 0 ), |
| 1054 | /* MDRP[14] */ PACK( 1, 0 ), |
| 1055 | /* MDRP[15] */ PACK( 1, 0 ), |
| 1056 | |
| 1057 | /* MDRP[16] */ PACK( 1, 0 ), |
| 1058 | /* MDRP[17] */ PACK( 1, 0 ), |
| 1059 | /* MDRP[18] */ PACK( 1, 0 ), |
| 1060 | /* MDRP[19] */ PACK( 1, 0 ), |
| 1061 | /* MDRP[20] */ PACK( 1, 0 ), |
| 1062 | /* MDRP[21] */ PACK( 1, 0 ), |
| 1063 | /* MDRP[22] */ PACK( 1, 0 ), |
| 1064 | /* MDRP[23] */ PACK( 1, 0 ), |
| 1065 | /* MDRP[24] */ PACK( 1, 0 ), |
| 1066 | /* MDRP[25] */ PACK( 1, 0 ), |
| 1067 | /* MDRP[26] */ PACK( 1, 0 ), |
| 1068 | /* MDRP[27] */ PACK( 1, 0 ), |
| 1069 | /* MDRP[28] */ PACK( 1, 0 ), |
| 1070 | /* MDRP[29] */ PACK( 1, 0 ), |
| 1071 | /* MDRP[30] */ PACK( 1, 0 ), |
| 1072 | /* MDRP[31] */ PACK( 1, 0 ), |
| 1073 | |
| 1074 | /* MIRP[00] */ PACK( 2, 0 ), |
| 1075 | /* MIRP[01] */ PACK( 2, 0 ), |
| 1076 | /* MIRP[02] */ PACK( 2, 0 ), |
| 1077 | /* MIRP[03] */ PACK( 2, 0 ), |
| 1078 | /* MIRP[04] */ PACK( 2, 0 ), |
| 1079 | /* MIRP[05] */ PACK( 2, 0 ), |
| 1080 | /* MIRP[06] */ PACK( 2, 0 ), |
| 1081 | /* MIRP[07] */ PACK( 2, 0 ), |
| 1082 | /* MIRP[08] */ PACK( 2, 0 ), |
| 1083 | /* MIRP[09] */ PACK( 2, 0 ), |
| 1084 | /* MIRP[10] */ PACK( 2, 0 ), |
| 1085 | /* MIRP[11] */ PACK( 2, 0 ), |
| 1086 | /* MIRP[12] */ PACK( 2, 0 ), |
| 1087 | /* MIRP[13] */ PACK( 2, 0 ), |
| 1088 | /* MIRP[14] */ PACK( 2, 0 ), |
| 1089 | /* MIRP[15] */ PACK( 2, 0 ), |
| 1090 | |
| 1091 | /* MIRP[16] */ PACK( 2, 0 ), |
| 1092 | /* MIRP[17] */ PACK( 2, 0 ), |
| 1093 | /* MIRP[18] */ PACK( 2, 0 ), |
| 1094 | /* MIRP[19] */ PACK( 2, 0 ), |
| 1095 | /* MIRP[20] */ PACK( 2, 0 ), |
| 1096 | /* MIRP[21] */ PACK( 2, 0 ), |
| 1097 | /* MIRP[22] */ PACK( 2, 0 ), |
| 1098 | /* MIRP[23] */ PACK( 2, 0 ), |
| 1099 | /* MIRP[24] */ PACK( 2, 0 ), |
| 1100 | /* MIRP[25] */ PACK( 2, 0 ), |
| 1101 | /* MIRP[26] */ PACK( 2, 0 ), |
| 1102 | /* MIRP[27] */ PACK( 2, 0 ), |
| 1103 | /* MIRP[28] */ PACK( 2, 0 ), |
| 1104 | /* MIRP[29] */ PACK( 2, 0 ), |
| 1105 | /* MIRP[30] */ PACK( 2, 0 ), |
| 1106 | /* MIRP[31] */ PACK( 2, 0 ) |
| 1107 | }; |
| 1108 | |
| 1109 | |
| 1110 | static |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1111 | const FT_Char opcode_length[256] = |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1112 | { |
| 1113 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1114 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1115 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1116 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1117 | |
Werner Lemberg | 33febc0 | 2004-10-09 07:07:43 +0000 | [diff] [blame] | 1118 | -1,-2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1119 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1120 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1121 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1122 | |
| 1123 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1124 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1125 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1126 | 2, 3, 4, 5, 6, 7, 8, 9, 3, 5, 7, 9, 11,13,15,17, |
| 1127 | |
| 1128 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1129 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1130 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
| 1131 | 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 |
| 1132 | }; |
| 1133 | |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 1134 | #undef PACK |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1135 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1136 | #if 1 |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1137 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1138 | static FT_Int32 |
| 1139 | TT_MulFix14( FT_Int32 a, |
| 1140 | FT_Int b ) |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1141 | { |
| 1142 | FT_Int32 sign; |
| 1143 | FT_UInt32 ah, al, mid, lo, hi; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1144 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1145 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1146 | sign = a ^ b; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1147 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1148 | if ( a < 0 ) |
| 1149 | a = -a; |
| 1150 | if ( b < 0 ) |
| 1151 | b = -b; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1152 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1153 | ah = (FT_UInt32)( ( a >> 16 ) & 0xFFFFU ); |
| 1154 | al = (FT_UInt32)( a & 0xFFFFU ); |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1155 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1156 | lo = al * b; |
| 1157 | mid = ah * b; |
| 1158 | hi = mid >> 16; |
| 1159 | mid = ( mid << 16 ) + ( 1 << 13 ); /* rounding */ |
| 1160 | lo += mid; |
| 1161 | if ( lo < mid ) |
| 1162 | hi += 1; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1163 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1164 | mid = ( lo >> 14 ) | ( hi << 18 ); |
| 1165 | |
| 1166 | return sign >= 0 ? (FT_Int32)mid : -(FT_Int32)mid; |
| 1167 | } |
| 1168 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1169 | #else |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 1170 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1171 | /* compute (a*b)/2^14 with maximal accuracy and rounding */ |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1172 | static FT_Int32 |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1173 | TT_MulFix14( FT_Int32 a, |
| 1174 | FT_Int b ) |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1175 | { |
| 1176 | FT_Int32 m, s, hi; |
| 1177 | FT_UInt32 l, lo; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1178 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1179 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1180 | /* compute ax*bx as 64-bit value */ |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1181 | l = (FT_UInt32)( ( a & 0xFFFFU ) * b ); |
| 1182 | m = ( a >> 16 ) * b; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1183 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1184 | lo = l + (FT_UInt32)( m << 16 ); |
| 1185 | hi = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo < l ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1186 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1187 | /* divide the result by 2^14 with rounding */ |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1188 | s = hi >> 31; |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1189 | l = lo + (FT_UInt32)s; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1190 | hi += s + ( l < lo ); |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1191 | lo = l; |
| 1192 | |
| 1193 | l = lo + 0x2000U; |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 1194 | hi += l < lo; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1195 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1196 | return ( hi << 18 ) | ( l >> 14 ); |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1197 | } |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 1198 | #endif |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1199 | |
| 1200 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1201 | /* compute (ax*bx+ay*by)/2^14 with maximal accuracy and rounding */ |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1202 | static FT_Int32 |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1203 | TT_DotFix14( FT_Int32 ax, |
| 1204 | FT_Int32 ay, |
| 1205 | FT_Int bx, |
| 1206 | FT_Int by ) |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1207 | { |
| 1208 | FT_Int32 m, s, hi1, hi2, hi; |
| 1209 | FT_UInt32 l, lo1, lo2, lo; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1210 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1211 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1212 | /* compute ax*bx as 64-bit value */ |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1213 | l = (FT_UInt32)( ( ax & 0xFFFFU ) * bx ); |
| 1214 | m = ( ax >> 16 ) * bx; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1215 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1216 | lo1 = l + (FT_UInt32)( m << 16 ); |
| 1217 | hi1 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo1 < l ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1218 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1219 | /* compute ay*by as 64-bit value */ |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1220 | l = (FT_UInt32)( ( ay & 0xFFFFU ) * by ); |
| 1221 | m = ( ay >> 16 ) * by; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1222 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1223 | lo2 = l + (FT_UInt32)( m << 16 ); |
| 1224 | hi2 = ( m >> 16 ) + ( (FT_Int32)l >> 31 ) + ( lo2 < l ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1225 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1226 | /* add them */ |
| 1227 | lo = lo1 + lo2; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1228 | hi = hi1 + hi2 + ( lo < lo1 ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1229 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1230 | /* divide the result by 2^14 with rounding */ |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1231 | s = hi >> 31; |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1232 | l = lo + (FT_UInt32)s; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1233 | hi += s + ( l < lo ); |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1234 | lo = l; |
| 1235 | |
| 1236 | l = lo + 0x2000U; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1237 | hi += ( l < lo ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1238 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1239 | return ( hi << 18 ) | ( l >> 14 ); |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1240 | } |
| 1241 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1242 | |
| 1243 | /* return length of given vector */ |
| 1244 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1245 | #if 0 |
| 1246 | |
| 1247 | static FT_Int32 |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1248 | TT_VecLen( FT_Int32 x, |
| 1249 | FT_Int32 y ) |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1250 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1251 | FT_Int32 m, hi1, hi2, hi; |
| 1252 | FT_UInt32 l, lo1, lo2, lo; |
| 1253 | |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1254 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1255 | /* compute x*x as 64-bit value */ |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1256 | lo = (FT_UInt32)( x & 0xFFFFU ); |
| 1257 | hi = x >> 16; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1258 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1259 | l = lo * lo; |
| 1260 | m = hi * lo; |
| 1261 | hi = hi * hi; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1262 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1263 | lo1 = l + (FT_UInt32)( m << 17 ); |
| 1264 | hi1 = hi + ( m >> 15 ) + ( lo1 < l ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1265 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1266 | /* compute y*y as 64-bit value */ |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1267 | lo = (FT_UInt32)( y & 0xFFFFU ); |
| 1268 | hi = y >> 16; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1269 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1270 | l = lo * lo; |
| 1271 | m = hi * lo; |
| 1272 | hi = hi * hi; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1273 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1274 | lo2 = l + (FT_UInt32)( m << 17 ); |
| 1275 | hi2 = hi + ( m >> 15 ) + ( lo2 < l ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1276 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1277 | /* add them to get 'x*x+y*y' as 64-bit value */ |
| 1278 | lo = lo1 + lo2; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1279 | hi = hi1 + hi2 + ( lo < lo1 ); |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1280 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1281 | /* compute the square root of this value */ |
| 1282 | { |
| 1283 | FT_UInt32 root, rem, test_div; |
| 1284 | FT_Int count; |
| 1285 | |
| 1286 | |
| 1287 | root = 0; |
| 1288 | |
| 1289 | { |
| 1290 | rem = 0; |
| 1291 | count = 32; |
| 1292 | do |
| 1293 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1294 | rem = ( rem << 2 ) | ( (FT_UInt32)hi >> 30 ); |
| 1295 | hi = ( hi << 2 ) | ( lo >> 30 ); |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1296 | lo <<= 2; |
| 1297 | root <<= 1; |
| 1298 | test_div = ( root << 1 ) + 1; |
| 1299 | |
| 1300 | if ( rem >= test_div ) |
| 1301 | { |
| 1302 | rem -= test_div; |
| 1303 | root += 1; |
| 1304 | } |
| 1305 | } while ( --count ); |
| 1306 | } |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1307 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1308 | return (FT_Int32)root; |
| 1309 | } |
| 1310 | } |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1311 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1312 | #else |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1313 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1314 | /* this version uses FT_Vector_Length which computes the same value */ |
| 1315 | /* much, much faster.. */ |
| 1316 | /* */ |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1317 | static FT_F26Dot6 |
| 1318 | TT_VecLen( FT_F26Dot6 X, |
| 1319 | FT_F26Dot6 Y ) |
| 1320 | { |
| 1321 | FT_Vector v; |
| 1322 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1323 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1324 | v.x = X; |
| 1325 | v.y = Y; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1326 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1327 | return FT_Vector_Length( &v ); |
| 1328 | } |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1329 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 1330 | #endif |
| 1331 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1332 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1333 | /*************************************************************************/ |
| 1334 | /* */ |
| 1335 | /* <Function> */ |
| 1336 | /* Current_Ratio */ |
| 1337 | /* */ |
| 1338 | /* <Description> */ |
| 1339 | /* Returns the current aspect ratio scaling factor depending on the */ |
| 1340 | /* projection vector's state and device resolutions. */ |
| 1341 | /* */ |
| 1342 | /* <Return> */ |
| 1343 | /* The aspect ratio in 16.16 format, always <= 1.0 . */ |
| 1344 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1345 | static FT_Long |
| 1346 | Current_Ratio( EXEC_OP ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1347 | { |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 1348 | if ( !CUR.tt_metrics.ratio ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1349 | { |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 1350 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 1351 | if ( CUR.face->unpatented_hinting ) |
| 1352 | { |
| 1353 | if ( CUR.GS.both_x_axis ) |
| 1354 | CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio; |
| 1355 | else |
| 1356 | CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio; |
| 1357 | } |
| 1358 | else |
| 1359 | #endif |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 1360 | { |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 1361 | if ( CUR.GS.projVector.y == 0 ) |
| 1362 | CUR.tt_metrics.ratio = CUR.tt_metrics.x_ratio; |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 1363 | |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 1364 | else if ( CUR.GS.projVector.x == 0 ) |
| 1365 | CUR.tt_metrics.ratio = CUR.tt_metrics.y_ratio; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1366 | |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 1367 | else |
| 1368 | { |
| 1369 | FT_Long x, y; |
| 1370 | |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 1371 | |
| 1372 | x = TT_MULDIV( CUR.GS.projVector.x, |
| 1373 | CUR.tt_metrics.x_ratio, 0x4000 ); |
| 1374 | y = TT_MULDIV( CUR.GS.projVector.y, |
| 1375 | CUR.tt_metrics.y_ratio, 0x4000 ); |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 1376 | CUR.tt_metrics.ratio = TT_VecLen( x, y ); |
| 1377 | } |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 1378 | } |
| 1379 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1380 | return CUR.tt_metrics.ratio; |
| 1381 | } |
| 1382 | |
| 1383 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1384 | static FT_Long |
| 1385 | Current_Ppem( EXEC_OP ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1386 | { |
| 1387 | return TT_MULFIX( CUR.tt_metrics.ppem, CURRENT_Ratio() ); |
| 1388 | } |
| 1389 | |
| 1390 | |
| 1391 | /*************************************************************************/ |
| 1392 | /* */ |
| 1393 | /* Functions related to the control value table (CVT). */ |
| 1394 | /* */ |
| 1395 | /*************************************************************************/ |
| 1396 | |
| 1397 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1398 | FT_CALLBACK_DEF( FT_F26Dot6 ) |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1399 | Read_CVT( EXEC_OP_ FT_ULong idx ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1400 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1401 | return CUR.cvt[idx]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1402 | } |
| 1403 | |
| 1404 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1405 | FT_CALLBACK_DEF( FT_F26Dot6 ) |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1406 | Read_CVT_Stretched( EXEC_OP_ FT_ULong idx ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1407 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1408 | return TT_MULFIX( CUR.cvt[idx], CURRENT_Ratio() ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1409 | } |
| 1410 | |
| 1411 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1412 | FT_CALLBACK_DEF( void ) |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1413 | Write_CVT( EXEC_OP_ FT_ULong idx, |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1414 | FT_F26Dot6 value ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1415 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1416 | CUR.cvt[idx] = value; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1417 | } |
| 1418 | |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 1419 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1420 | FT_CALLBACK_DEF( void ) |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1421 | Write_CVT_Stretched( EXEC_OP_ FT_ULong idx, |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1422 | FT_F26Dot6 value ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1423 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1424 | CUR.cvt[idx] = FT_DivFix( value, CURRENT_Ratio() ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1425 | } |
| 1426 | |
| 1427 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1428 | FT_CALLBACK_DEF( void ) |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1429 | Move_CVT( EXEC_OP_ FT_ULong idx, |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1430 | FT_F26Dot6 value ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1431 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1432 | CUR.cvt[idx] += value; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1433 | } |
| 1434 | |
| 1435 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1436 | FT_CALLBACK_DEF( void ) |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1437 | Move_CVT_Stretched( EXEC_OP_ FT_ULong idx, |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1438 | FT_F26Dot6 value ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1439 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1440 | CUR.cvt[idx] += FT_DivFix( value, CURRENT_Ratio() ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1441 | } |
| 1442 | |
| 1443 | |
| 1444 | /*************************************************************************/ |
| 1445 | /* */ |
| 1446 | /* <Function> */ |
| 1447 | /* GetShortIns */ |
| 1448 | /* */ |
| 1449 | /* <Description> */ |
| 1450 | /* Returns a short integer taken from the instruction stream at */ |
| 1451 | /* address IP. */ |
| 1452 | /* */ |
| 1453 | /* <Return> */ |
| 1454 | /* Short read at code[IP]. */ |
| 1455 | /* */ |
| 1456 | /* <Note> */ |
| 1457 | /* This one could become a macro. */ |
| 1458 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1459 | static FT_Short |
| 1460 | GetShortIns( EXEC_OP ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1461 | { |
| 1462 | /* Reading a byte stream so there is no endianess (DaveP) */ |
| 1463 | CUR.IP += 2; |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1464 | return (FT_Short)( ( CUR.code[CUR.IP - 2] << 8 ) + |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1465 | CUR.code[CUR.IP - 1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1466 | } |
| 1467 | |
| 1468 | |
| 1469 | /*************************************************************************/ |
| 1470 | /* */ |
| 1471 | /* <Function> */ |
| 1472 | /* Ins_Goto_CodeRange */ |
| 1473 | /* */ |
| 1474 | /* <Description> */ |
| 1475 | /* Goes to a certain code range in the instruction stream. */ |
| 1476 | /* */ |
| 1477 | /* <Input> */ |
| 1478 | /* aRange :: The index of the code range. */ |
| 1479 | /* */ |
| 1480 | /* aIP :: The new IP address in the code range. */ |
| 1481 | /* */ |
| 1482 | /* <Return> */ |
| 1483 | /* SUCCESS or FAILURE. */ |
| 1484 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1485 | static FT_Bool |
| 1486 | Ins_Goto_CodeRange( EXEC_OP_ FT_Int aRange, |
| 1487 | FT_ULong aIP ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1488 | { |
| 1489 | TT_CodeRange* range; |
| 1490 | |
| 1491 | |
| 1492 | if ( aRange < 1 || aRange > 3 ) |
| 1493 | { |
| 1494 | CUR.error = TT_Err_Bad_Argument; |
| 1495 | return FAILURE; |
| 1496 | } |
| 1497 | |
| 1498 | range = &CUR.codeRangeTable[aRange - 1]; |
| 1499 | |
| 1500 | if ( range->base == NULL ) /* invalid coderange */ |
| 1501 | { |
| 1502 | CUR.error = TT_Err_Invalid_CodeRange; |
| 1503 | return FAILURE; |
| 1504 | } |
| 1505 | |
| 1506 | /* NOTE: Because the last instruction of a program may be a CALL */ |
| 1507 | /* which will return to the first byte *after* the code */ |
| 1508 | /* range, we test for AIP <= Size, instead of AIP < Size. */ |
| 1509 | |
| 1510 | if ( aIP > range->size ) |
| 1511 | { |
| 1512 | CUR.error = TT_Err_Code_Overflow; |
| 1513 | return FAILURE; |
| 1514 | } |
| 1515 | |
| 1516 | CUR.code = range->base; |
| 1517 | CUR.codeSize = range->size; |
| 1518 | CUR.IP = aIP; |
| 1519 | CUR.curRange = aRange; |
| 1520 | |
| 1521 | return SUCCESS; |
| 1522 | } |
| 1523 | |
| 1524 | |
| 1525 | /*************************************************************************/ |
| 1526 | /* */ |
| 1527 | /* <Function> */ |
| 1528 | /* Direct_Move */ |
| 1529 | /* */ |
| 1530 | /* <Description> */ |
| 1531 | /* Moves a point by a given distance along the freedom vector. The */ |
| 1532 | /* point will be `touched'. */ |
| 1533 | /* */ |
| 1534 | /* <Input> */ |
| 1535 | /* point :: The index of the point to move. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1536 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1537 | /* distance :: The distance to apply. */ |
| 1538 | /* */ |
| 1539 | /* <InOut> */ |
| 1540 | /* zone :: The affected glyph zone. */ |
| 1541 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1542 | static void |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1543 | Direct_Move( EXEC_OP_ TT_GlyphZone zone, |
| 1544 | FT_UShort point, |
| 1545 | FT_F26Dot6 distance ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1546 | { |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1547 | FT_F26Dot6 v; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1548 | |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 1549 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 1550 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 1551 | FT_ASSERT( !CUR.face->unpatented_hinting ); |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 1552 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1553 | |
| 1554 | v = CUR.GS.freeVector.x; |
| 1555 | |
| 1556 | if ( v != 0 ) |
| 1557 | { |
| 1558 | zone->cur[point].x += TT_MULDIV( distance, |
| 1559 | v * 0x10000L, |
| 1560 | CUR.F_dot_P ); |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 1561 | |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1562 | zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1563 | } |
| 1564 | |
| 1565 | v = CUR.GS.freeVector.y; |
| 1566 | |
| 1567 | if ( v != 0 ) |
| 1568 | { |
| 1569 | zone->cur[point].y += TT_MULDIV( distance, |
| 1570 | v * 0x10000L, |
| 1571 | CUR.F_dot_P ); |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 1572 | |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1573 | zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1574 | } |
| 1575 | } |
| 1576 | |
| 1577 | |
| 1578 | /*************************************************************************/ |
| 1579 | /* */ |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1580 | /* <Function> */ |
| 1581 | /* Direct_Move_Orig */ |
| 1582 | /* */ |
| 1583 | /* <Description> */ |
Werner Lemberg | d90b673 | 2003-11-28 22:47:26 +0000 | [diff] [blame] | 1584 | /* Moves the *original* position of a point by a given distance along */ |
| 1585 | /* the freedom vector. Obviously, the point will not be `touched'. */ |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1586 | /* */ |
| 1587 | /* <Input> */ |
| 1588 | /* point :: The index of the point to move. */ |
| 1589 | /* */ |
| 1590 | /* distance :: The distance to apply. */ |
| 1591 | /* */ |
| 1592 | /* <InOut> */ |
| 1593 | /* zone :: The affected glyph zone. */ |
| 1594 | /* */ |
| 1595 | static void |
| 1596 | Direct_Move_Orig( EXEC_OP_ TT_GlyphZone zone, |
| 1597 | FT_UShort point, |
| 1598 | FT_F26Dot6 distance ) |
| 1599 | { |
| 1600 | FT_F26Dot6 v; |
| 1601 | |
| 1602 | |
| 1603 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
| 1604 | FT_ASSERT( !CUR.face->unpatented_hinting ); |
| 1605 | #endif |
| 1606 | |
| 1607 | v = CUR.GS.freeVector.x; |
| 1608 | |
| 1609 | if ( v != 0 ) |
| 1610 | zone->org[point].x += TT_MULDIV( distance, |
| 1611 | v * 0x10000L, |
| 1612 | CUR.F_dot_P ); |
| 1613 | |
| 1614 | v = CUR.GS.freeVector.y; |
| 1615 | |
| 1616 | if ( v != 0 ) |
| 1617 | zone->org[point].y += TT_MULDIV( distance, |
| 1618 | v * 0x10000L, |
| 1619 | CUR.F_dot_P ); |
| 1620 | } |
| 1621 | |
| 1622 | |
| 1623 | /*************************************************************************/ |
| 1624 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1625 | /* Special versions of Direct_Move() */ |
| 1626 | /* */ |
| 1627 | /* The following versions are used whenever both vectors are both */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1628 | /* along one of the coordinate unit vectors, i.e. in 90% of the cases. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1629 | /* */ |
| 1630 | /*************************************************************************/ |
| 1631 | |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 1632 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1633 | static void |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1634 | Direct_Move_X( EXEC_OP_ TT_GlyphZone zone, |
| 1635 | FT_UShort point, |
| 1636 | FT_F26Dot6 distance ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1637 | { |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1638 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1639 | |
| 1640 | zone->cur[point].x += distance; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1641 | zone->tags[point] |= FT_CURVE_TAG_TOUCH_X; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1642 | } |
| 1643 | |
| 1644 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1645 | static void |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 1646 | Direct_Move_Y( EXEC_OP_ TT_GlyphZone zone, |
| 1647 | FT_UShort point, |
| 1648 | FT_F26Dot6 distance ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1649 | { |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1650 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1651 | |
| 1652 | zone->cur[point].y += distance; |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 1653 | zone->tags[point] |= FT_CURVE_TAG_TOUCH_Y; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1654 | } |
| 1655 | |
| 1656 | |
| 1657 | /*************************************************************************/ |
| 1658 | /* */ |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1659 | /* Special versions of Direct_Move_Orig() */ |
| 1660 | /* */ |
| 1661 | /* The following versions are used whenever both vectors are both */ |
| 1662 | /* along one of the coordinate unit vectors, i.e. in 90% of the cases. */ |
| 1663 | /* */ |
| 1664 | /*************************************************************************/ |
| 1665 | |
| 1666 | |
| 1667 | static void |
| 1668 | Direct_Move_Orig_X( EXEC_OP_ TT_GlyphZone zone, |
| 1669 | FT_UShort point, |
| 1670 | FT_F26Dot6 distance ) |
| 1671 | { |
| 1672 | FT_UNUSED_EXEC; |
| 1673 | |
| 1674 | zone->org[point].x += distance; |
| 1675 | } |
| 1676 | |
| 1677 | |
| 1678 | static void |
| 1679 | Direct_Move_Orig_Y( EXEC_OP_ TT_GlyphZone zone, |
| 1680 | FT_UShort point, |
| 1681 | FT_F26Dot6 distance ) |
| 1682 | { |
| 1683 | FT_UNUSED_EXEC; |
| 1684 | |
| 1685 | zone->org[point].y += distance; |
| 1686 | } |
| 1687 | |
| 1688 | |
| 1689 | /*************************************************************************/ |
| 1690 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1691 | /* <Function> */ |
| 1692 | /* Round_None */ |
| 1693 | /* */ |
| 1694 | /* <Description> */ |
| 1695 | /* Does not round, but adds engine compensation. */ |
| 1696 | /* */ |
| 1697 | /* <Input> */ |
| 1698 | /* distance :: The distance (not) to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1699 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1700 | /* compensation :: The engine compensation. */ |
| 1701 | /* */ |
| 1702 | /* <Return> */ |
| 1703 | /* The compensated distance. */ |
| 1704 | /* */ |
| 1705 | /* <Note> */ |
| 1706 | /* The TrueType specification says very few about the relationship */ |
| 1707 | /* between rounding and engine compensation. However, it seems from */ |
| 1708 | /* the description of super round that we should add the compensation */ |
| 1709 | /* before rounding. */ |
| 1710 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1711 | static FT_F26Dot6 |
| 1712 | Round_None( EXEC_OP_ FT_F26Dot6 distance, |
| 1713 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1714 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1715 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1716 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1717 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1718 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1719 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1720 | if ( distance >= 0 ) |
| 1721 | { |
| 1722 | val = distance + compensation; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1723 | if ( distance && val < 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1724 | val = 0; |
| 1725 | } |
| 1726 | else { |
| 1727 | val = distance - compensation; |
| 1728 | if ( val > 0 ) |
| 1729 | val = 0; |
| 1730 | } |
| 1731 | return val; |
| 1732 | } |
| 1733 | |
| 1734 | |
| 1735 | /*************************************************************************/ |
| 1736 | /* */ |
| 1737 | /* <Function> */ |
| 1738 | /* Round_To_Grid */ |
| 1739 | /* */ |
| 1740 | /* <Description> */ |
| 1741 | /* Rounds value to grid after adding engine compensation. */ |
| 1742 | /* */ |
| 1743 | /* <Input> */ |
| 1744 | /* distance :: The distance to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1745 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1746 | /* compensation :: The engine compensation. */ |
| 1747 | /* */ |
| 1748 | /* <Return> */ |
| 1749 | /* Rounded distance. */ |
| 1750 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1751 | static FT_F26Dot6 |
| 1752 | Round_To_Grid( EXEC_OP_ FT_F26Dot6 distance, |
| 1753 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1754 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1755 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1756 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1757 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1758 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1759 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1760 | if ( distance >= 0 ) |
| 1761 | { |
| 1762 | val = distance + compensation + 32; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1763 | if ( distance && val > 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1764 | val &= ~63; |
| 1765 | else |
| 1766 | val = 0; |
| 1767 | } |
| 1768 | else |
| 1769 | { |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 1770 | val = -FT_PIX_ROUND( compensation - distance ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1771 | if ( val > 0 ) |
| 1772 | val = 0; |
| 1773 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1774 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1775 | return val; |
| 1776 | } |
| 1777 | |
| 1778 | |
| 1779 | /*************************************************************************/ |
| 1780 | /* */ |
| 1781 | /* <Function> */ |
| 1782 | /* Round_To_Half_Grid */ |
| 1783 | /* */ |
| 1784 | /* <Description> */ |
| 1785 | /* Rounds value to half grid after adding engine compensation. */ |
| 1786 | /* */ |
| 1787 | /* <Input> */ |
| 1788 | /* distance :: The distance to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1789 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1790 | /* compensation :: The engine compensation. */ |
| 1791 | /* */ |
| 1792 | /* <Return> */ |
| 1793 | /* Rounded distance. */ |
| 1794 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1795 | static FT_F26Dot6 |
| 1796 | Round_To_Half_Grid( EXEC_OP_ FT_F26Dot6 distance, |
| 1797 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1798 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1799 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1800 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1801 | FT_UNUSED_EXEC; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 1802 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1803 | |
| 1804 | if ( distance >= 0 ) |
| 1805 | { |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 1806 | val = FT_PIX_FLOOR( distance + compensation ) + 32; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1807 | if ( distance && val < 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1808 | val = 0; |
| 1809 | } |
| 1810 | else |
| 1811 | { |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 1812 | val = -( FT_PIX_FLOOR( compensation - distance ) + 32 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1813 | if ( val > 0 ) |
| 1814 | val = 0; |
| 1815 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1816 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1817 | return val; |
| 1818 | } |
| 1819 | |
| 1820 | |
| 1821 | /*************************************************************************/ |
| 1822 | /* */ |
| 1823 | /* <Function> */ |
| 1824 | /* Round_Down_To_Grid */ |
| 1825 | /* */ |
| 1826 | /* <Description> */ |
| 1827 | /* Rounds value down to grid after adding engine compensation. */ |
| 1828 | /* */ |
| 1829 | /* <Input> */ |
| 1830 | /* distance :: The distance to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1831 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1832 | /* compensation :: The engine compensation. */ |
| 1833 | /* */ |
| 1834 | /* <Return> */ |
| 1835 | /* Rounded distance. */ |
| 1836 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1837 | static FT_F26Dot6 |
| 1838 | Round_Down_To_Grid( EXEC_OP_ FT_F26Dot6 distance, |
| 1839 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1840 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1841 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1842 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1843 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1844 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1845 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1846 | if ( distance >= 0 ) |
| 1847 | { |
| 1848 | val = distance + compensation; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1849 | if ( distance && val > 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1850 | val &= ~63; |
| 1851 | else |
| 1852 | val = 0; |
| 1853 | } |
| 1854 | else |
| 1855 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1856 | val = -( ( compensation - distance ) & -64 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1857 | if ( val > 0 ) |
| 1858 | val = 0; |
| 1859 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1860 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1861 | return val; |
| 1862 | } |
| 1863 | |
| 1864 | |
| 1865 | /*************************************************************************/ |
| 1866 | /* */ |
| 1867 | /* <Function> */ |
| 1868 | /* Round_Up_To_Grid */ |
| 1869 | /* */ |
| 1870 | /* <Description> */ |
| 1871 | /* Rounds value up to grid after adding engine compensation. */ |
| 1872 | /* */ |
| 1873 | /* <Input> */ |
| 1874 | /* distance :: The distance to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1875 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1876 | /* compensation :: The engine compensation. */ |
| 1877 | /* */ |
| 1878 | /* <Return> */ |
| 1879 | /* Rounded distance. */ |
| 1880 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1881 | static FT_F26Dot6 |
| 1882 | Round_Up_To_Grid( EXEC_OP_ FT_F26Dot6 distance, |
| 1883 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1884 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1885 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1886 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1887 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1888 | |
Werner Lemberg | c6a1408 | 2007-02-12 22:08:15 +0000 | [diff] [blame] | 1889 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1890 | if ( distance >= 0 ) |
| 1891 | { |
| 1892 | val = distance + compensation + 63; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1893 | if ( distance && val > 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1894 | val &= ~63; |
| 1895 | else |
| 1896 | val = 0; |
| 1897 | } |
| 1898 | else |
| 1899 | { |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 1900 | val = - FT_PIX_CEIL( compensation - distance ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1901 | if ( val > 0 ) |
| 1902 | val = 0; |
| 1903 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1904 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1905 | return val; |
| 1906 | } |
| 1907 | |
| 1908 | |
| 1909 | /*************************************************************************/ |
| 1910 | /* */ |
| 1911 | /* <Function> */ |
| 1912 | /* Round_To_Double_Grid */ |
| 1913 | /* */ |
| 1914 | /* <Description> */ |
| 1915 | /* Rounds value to double grid after adding engine compensation. */ |
| 1916 | /* */ |
| 1917 | /* <Input> */ |
| 1918 | /* distance :: The distance to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1919 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1920 | /* compensation :: The engine compensation. */ |
| 1921 | /* */ |
| 1922 | /* <Return> */ |
| 1923 | /* Rounded distance. */ |
| 1924 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1925 | static FT_F26Dot6 |
| 1926 | Round_To_Double_Grid( EXEC_OP_ FT_F26Dot6 distance, |
| 1927 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1928 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1929 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1930 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 1931 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1932 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1933 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1934 | if ( distance >= 0 ) |
| 1935 | { |
| 1936 | val = distance + compensation + 16; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1937 | if ( distance && val > 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1938 | val &= ~31; |
| 1939 | else |
| 1940 | val = 0; |
| 1941 | } |
| 1942 | else |
| 1943 | { |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 1944 | val = -FT_PAD_ROUND( compensation - distance, 32 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1945 | if ( val > 0 ) |
| 1946 | val = 0; |
| 1947 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1948 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1949 | return val; |
| 1950 | } |
| 1951 | |
| 1952 | |
| 1953 | /*************************************************************************/ |
| 1954 | /* */ |
| 1955 | /* <Function> */ |
| 1956 | /* Round_Super */ |
| 1957 | /* */ |
| 1958 | /* <Description> */ |
| 1959 | /* Super-rounds value to grid after adding engine compensation. */ |
| 1960 | /* */ |
| 1961 | /* <Input> */ |
| 1962 | /* distance :: The distance to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1963 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1964 | /* compensation :: The engine compensation. */ |
| 1965 | /* */ |
| 1966 | /* <Return> */ |
| 1967 | /* Rounded distance. */ |
| 1968 | /* */ |
| 1969 | /* <Note> */ |
| 1970 | /* The TrueType specification says very few about the relationship */ |
| 1971 | /* between rounding and engine compensation. However, it seems from */ |
| 1972 | /* the description of super round that we should add the compensation */ |
| 1973 | /* before rounding. */ |
| 1974 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 1975 | static FT_F26Dot6 |
| 1976 | Round_Super( EXEC_OP_ FT_F26Dot6 distance, |
| 1977 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1978 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 1979 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1980 | |
| 1981 | |
| 1982 | if ( distance >= 0 ) |
| 1983 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1984 | val = ( distance - CUR.phase + CUR.threshold + compensation ) & |
| 1985 | -CUR.period; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 1986 | if ( distance && val < 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1987 | val = 0; |
| 1988 | val += CUR.phase; |
| 1989 | } |
| 1990 | else |
| 1991 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1992 | val = -( ( CUR.threshold - CUR.phase - distance + compensation ) & |
| 1993 | -CUR.period ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1994 | if ( val > 0 ) |
| 1995 | val = 0; |
| 1996 | val -= CUR.phase; |
| 1997 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 1998 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 1999 | return val; |
| 2000 | } |
| 2001 | |
| 2002 | |
| 2003 | /*************************************************************************/ |
| 2004 | /* */ |
| 2005 | /* <Function> */ |
| 2006 | /* Round_Super_45 */ |
| 2007 | /* */ |
| 2008 | /* <Description> */ |
| 2009 | /* Super-rounds value to grid after adding engine compensation. */ |
| 2010 | /* */ |
| 2011 | /* <Input> */ |
| 2012 | /* distance :: The distance to round. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2013 | /* */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2014 | /* compensation :: The engine compensation. */ |
| 2015 | /* */ |
| 2016 | /* <Return> */ |
| 2017 | /* Rounded distance. */ |
| 2018 | /* */ |
| 2019 | /* <Note> */ |
| 2020 | /* There is a separate function for Round_Super_45() as we may need */ |
| 2021 | /* greater precision. */ |
| 2022 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2023 | static FT_F26Dot6 |
| 2024 | Round_Super_45( EXEC_OP_ FT_F26Dot6 distance, |
| 2025 | FT_F26Dot6 compensation ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2026 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2027 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2028 | |
| 2029 | |
| 2030 | if ( distance >= 0 ) |
| 2031 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2032 | val = ( ( distance - CUR.phase + CUR.threshold + compensation ) / |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2033 | CUR.period ) * CUR.period; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 2034 | if ( distance && val < 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2035 | val = 0; |
| 2036 | val += CUR.phase; |
| 2037 | } |
| 2038 | else |
| 2039 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2040 | val = -( ( ( CUR.threshold - CUR.phase - distance + compensation ) / |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2041 | CUR.period ) * CUR.period ); |
| 2042 | if ( val > 0 ) |
| 2043 | val = 0; |
| 2044 | val -= CUR.phase; |
| 2045 | } |
| 2046 | |
| 2047 | return val; |
| 2048 | } |
| 2049 | |
| 2050 | |
| 2051 | /*************************************************************************/ |
| 2052 | /* */ |
| 2053 | /* <Function> */ |
| 2054 | /* Compute_Round */ |
| 2055 | /* */ |
| 2056 | /* <Description> */ |
| 2057 | /* Sets the rounding mode. */ |
| 2058 | /* */ |
| 2059 | /* <Input> */ |
| 2060 | /* round_mode :: The rounding mode to be used. */ |
| 2061 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2062 | static void |
| 2063 | Compute_Round( EXEC_OP_ FT_Byte round_mode ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2064 | { |
| 2065 | switch ( round_mode ) |
| 2066 | { |
| 2067 | case TT_Round_Off: |
| 2068 | CUR.func_round = (TT_Round_Func)Round_None; |
| 2069 | break; |
| 2070 | |
| 2071 | case TT_Round_To_Grid: |
| 2072 | CUR.func_round = (TT_Round_Func)Round_To_Grid; |
| 2073 | break; |
| 2074 | |
| 2075 | case TT_Round_Up_To_Grid: |
| 2076 | CUR.func_round = (TT_Round_Func)Round_Up_To_Grid; |
| 2077 | break; |
| 2078 | |
| 2079 | case TT_Round_Down_To_Grid: |
| 2080 | CUR.func_round = (TT_Round_Func)Round_Down_To_Grid; |
| 2081 | break; |
| 2082 | |
| 2083 | case TT_Round_To_Half_Grid: |
| 2084 | CUR.func_round = (TT_Round_Func)Round_To_Half_Grid; |
| 2085 | break; |
| 2086 | |
| 2087 | case TT_Round_To_Double_Grid: |
| 2088 | CUR.func_round = (TT_Round_Func)Round_To_Double_Grid; |
| 2089 | break; |
| 2090 | |
| 2091 | case TT_Round_Super: |
| 2092 | CUR.func_round = (TT_Round_Func)Round_Super; |
| 2093 | break; |
| 2094 | |
| 2095 | case TT_Round_Super_45: |
| 2096 | CUR.func_round = (TT_Round_Func)Round_Super_45; |
| 2097 | break; |
| 2098 | } |
| 2099 | } |
| 2100 | |
| 2101 | |
| 2102 | /*************************************************************************/ |
| 2103 | /* */ |
| 2104 | /* <Function> */ |
| 2105 | /* SetSuperRound */ |
| 2106 | /* */ |
| 2107 | /* <Description> */ |
| 2108 | /* Sets Super Round parameters. */ |
| 2109 | /* */ |
| 2110 | /* <Input> */ |
| 2111 | /* GridPeriod :: Grid period */ |
| 2112 | /* selector :: SROUND opcode */ |
| 2113 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2114 | static void |
| 2115 | SetSuperRound( EXEC_OP_ FT_F26Dot6 GridPeriod, |
| 2116 | FT_Long selector ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2117 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2118 | switch ( (FT_Int)( selector & 0xC0 ) ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2119 | { |
| 2120 | case 0: |
| 2121 | CUR.period = GridPeriod / 2; |
| 2122 | break; |
| 2123 | |
| 2124 | case 0x40: |
| 2125 | CUR.period = GridPeriod; |
| 2126 | break; |
| 2127 | |
| 2128 | case 0x80: |
| 2129 | CUR.period = GridPeriod * 2; |
| 2130 | break; |
| 2131 | |
| 2132 | /* This opcode is reserved, but... */ |
| 2133 | |
| 2134 | case 0xC0: |
| 2135 | CUR.period = GridPeriod; |
| 2136 | break; |
| 2137 | } |
| 2138 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2139 | switch ( (FT_Int)( selector & 0x30 ) ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2140 | { |
| 2141 | case 0: |
| 2142 | CUR.phase = 0; |
| 2143 | break; |
| 2144 | |
| 2145 | case 0x10: |
| 2146 | CUR.phase = CUR.period / 4; |
| 2147 | break; |
| 2148 | |
| 2149 | case 0x20: |
| 2150 | CUR.phase = CUR.period / 2; |
| 2151 | break; |
| 2152 | |
| 2153 | case 0x30: |
Werner Lemberg | 6e9b318 | 2003-06-10 10:54:33 +0000 | [diff] [blame] | 2154 | CUR.phase = CUR.period * 3 / 4; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2155 | break; |
| 2156 | } |
| 2157 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 2158 | if ( ( selector & 0x0F ) == 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2159 | CUR.threshold = CUR.period - 1; |
| 2160 | else |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2161 | CUR.threshold = ( (FT_Int)( selector & 0x0F ) - 4 ) * CUR.period / 8; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2162 | |
| 2163 | CUR.period /= 256; |
| 2164 | CUR.phase /= 256; |
| 2165 | CUR.threshold /= 256; |
| 2166 | } |
| 2167 | |
| 2168 | |
| 2169 | /*************************************************************************/ |
| 2170 | /* */ |
| 2171 | /* <Function> */ |
| 2172 | /* Project */ |
| 2173 | /* */ |
| 2174 | /* <Description> */ |
| 2175 | /* Computes the projection of vector given by (v2-v1) along the */ |
| 2176 | /* current projection vector. */ |
| 2177 | /* */ |
| 2178 | /* <Input> */ |
| 2179 | /* v1 :: First input vector. */ |
| 2180 | /* v2 :: Second input vector. */ |
| 2181 | /* */ |
| 2182 | /* <Return> */ |
| 2183 | /* The distance in F26dot6 format. */ |
| 2184 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2185 | static FT_F26Dot6 |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2186 | Project( EXEC_OP_ FT_Pos dx, |
| 2187 | FT_Pos dy ) |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 2188 | { |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 2189 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2190 | FT_ASSERT( !CUR.face->unpatented_hinting ); |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2191 | #endif |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2192 | |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2193 | return TT_DotFix14( dx, dy, |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 2194 | CUR.GS.projVector.x, |
| 2195 | CUR.GS.projVector.y ); |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 2196 | } |
| 2197 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2198 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2199 | /*************************************************************************/ |
| 2200 | /* */ |
| 2201 | /* <Function> */ |
| 2202 | /* Dual_Project */ |
| 2203 | /* */ |
| 2204 | /* <Description> */ |
| 2205 | /* Computes the projection of the vector given by (v2-v1) along the */ |
| 2206 | /* current dual vector. */ |
| 2207 | /* */ |
| 2208 | /* <Input> */ |
| 2209 | /* v1 :: First input vector. */ |
| 2210 | /* v2 :: Second input vector. */ |
| 2211 | /* */ |
| 2212 | /* <Return> */ |
| 2213 | /* The distance in F26dot6 format. */ |
| 2214 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2215 | static FT_F26Dot6 |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2216 | Dual_Project( EXEC_OP_ FT_Pos dx, |
| 2217 | FT_Pos dy ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2218 | { |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2219 | return TT_DotFix14( dx, dy, |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 2220 | CUR.GS.dualVector.x, |
| 2221 | CUR.GS.dualVector.y ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2222 | } |
| 2223 | |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 2224 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2225 | /*************************************************************************/ |
| 2226 | /* */ |
| 2227 | /* <Function> */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2228 | /* Project_x */ |
| 2229 | /* */ |
| 2230 | /* <Description> */ |
| 2231 | /* Computes the projection of the vector given by (v2-v1) along the */ |
| 2232 | /* horizontal axis. */ |
| 2233 | /* */ |
| 2234 | /* <Input> */ |
| 2235 | /* v1 :: First input vector. */ |
| 2236 | /* v2 :: Second input vector. */ |
| 2237 | /* */ |
| 2238 | /* <Return> */ |
| 2239 | /* The distance in F26dot6 format. */ |
| 2240 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2241 | static FT_F26Dot6 |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2242 | Project_x( EXEC_OP_ FT_Pos dx, |
| 2243 | FT_Pos dy ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2244 | { |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 2245 | FT_UNUSED_EXEC; |
Werner Lemberg | c6a1408 | 2007-02-12 22:08:15 +0000 | [diff] [blame] | 2246 | FT_UNUSED( dy ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2247 | |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2248 | return dx; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2249 | } |
| 2250 | |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 2251 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2252 | /*************************************************************************/ |
| 2253 | /* */ |
| 2254 | /* <Function> */ |
| 2255 | /* Project_y */ |
| 2256 | /* */ |
| 2257 | /* <Description> */ |
| 2258 | /* Computes the projection of the vector given by (v2-v1) along the */ |
| 2259 | /* vertical axis. */ |
| 2260 | /* */ |
| 2261 | /* <Input> */ |
| 2262 | /* v1 :: First input vector. */ |
| 2263 | /* v2 :: Second input vector. */ |
| 2264 | /* */ |
| 2265 | /* <Return> */ |
| 2266 | /* The distance in F26dot6 format. */ |
| 2267 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2268 | static FT_F26Dot6 |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2269 | Project_y( EXEC_OP_ FT_Pos dx, |
| 2270 | FT_Pos dy ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2271 | { |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 2272 | FT_UNUSED_EXEC; |
Werner Lemberg | c6a1408 | 2007-02-12 22:08:15 +0000 | [diff] [blame] | 2273 | FT_UNUSED( dx ); |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 2274 | |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 2275 | return dy; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2276 | } |
| 2277 | |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 2278 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2279 | /*************************************************************************/ |
| 2280 | /* */ |
| 2281 | /* <Function> */ |
| 2282 | /* Compute_Funcs */ |
| 2283 | /* */ |
| 2284 | /* <Description> */ |
| 2285 | /* Computes the projection and movement function pointers according */ |
| 2286 | /* to the current graphics state. */ |
| 2287 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2288 | static void |
| 2289 | Compute_Funcs( EXEC_OP ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2290 | { |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 2291 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2292 | if ( CUR.face->unpatented_hinting ) |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2293 | { |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2294 | /* If both vectors point rightwards along the x axis, set */ |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2295 | /* `both-x-axis' true, otherwise set it false. The x values only */ |
| 2296 | /* need be tested because the vector has been normalised to a unit */ |
| 2297 | /* vector of length 0x4000 = unity. */ |
| 2298 | CUR.GS.both_x_axis = (FT_Bool)( CUR.GS.projVector.x == 0x4000 && |
| 2299 | CUR.GS.freeVector.x == 0x4000 ); |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2300 | |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2301 | /* Throw away projection and freedom vector information */ |
| 2302 | /* because the patents don't allow them to be stored. */ |
| 2303 | /* The relevant US Patents are 5155805 and 5325479. */ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2304 | CUR.GS.projVector.x = 0; |
| 2305 | CUR.GS.projVector.y = 0; |
| 2306 | CUR.GS.freeVector.x = 0; |
| 2307 | CUR.GS.freeVector.y = 0; |
| 2308 | |
| 2309 | if ( CUR.GS.both_x_axis ) |
| 2310 | { |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 2311 | CUR.func_project = Project_x; |
| 2312 | CUR.func_move = Direct_Move_X; |
| 2313 | CUR.func_move_orig = Direct_Move_Orig_X; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2314 | } |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2315 | else |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2316 | { |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 2317 | CUR.func_project = Project_y; |
| 2318 | CUR.func_move = Direct_Move_Y; |
| 2319 | CUR.func_move_orig = Direct_Move_Orig_Y; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2320 | } |
| 2321 | |
| 2322 | if ( CUR.GS.dualVector.x == 0x4000 ) |
| 2323 | CUR.func_dualproj = Project_x; |
| 2324 | else |
| 2325 | { |
| 2326 | if ( CUR.GS.dualVector.y == 0x4000 ) |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2327 | CUR.func_dualproj = Project_y; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2328 | else |
| 2329 | CUR.func_dualproj = Dual_Project; |
| 2330 | } |
| 2331 | |
| 2332 | /* Force recalculation of cached aspect ratio */ |
| 2333 | CUR.tt_metrics.ratio = 0; |
| 2334 | |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2335 | return; |
| 2336 | } |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 2337 | #endif /* TT_CONFIG_OPTION_UNPATENTED_HINTING */ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2338 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2339 | if ( CUR.GS.freeVector.x == 0x4000 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2340 | CUR.F_dot_P = CUR.GS.projVector.x * 0x10000L; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2341 | else |
| 2342 | { |
| 2343 | if ( CUR.GS.freeVector.y == 0x4000 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2344 | CUR.F_dot_P = CUR.GS.projVector.y * 0x10000L; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2345 | else |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2346 | CUR.F_dot_P = (FT_Long)CUR.GS.projVector.x * CUR.GS.freeVector.x * 4 + |
| 2347 | (FT_Long)CUR.GS.projVector.y * CUR.GS.freeVector.y * 4; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2348 | } |
| 2349 | |
| 2350 | if ( CUR.GS.projVector.x == 0x4000 ) |
| 2351 | CUR.func_project = (TT_Project_Func)Project_x; |
| 2352 | else |
| 2353 | { |
| 2354 | if ( CUR.GS.projVector.y == 0x4000 ) |
| 2355 | CUR.func_project = (TT_Project_Func)Project_y; |
| 2356 | else |
| 2357 | CUR.func_project = (TT_Project_Func)Project; |
| 2358 | } |
| 2359 | |
| 2360 | if ( CUR.GS.dualVector.x == 0x4000 ) |
| 2361 | CUR.func_dualproj = (TT_Project_Func)Project_x; |
| 2362 | else |
| 2363 | { |
| 2364 | if ( CUR.GS.dualVector.y == 0x4000 ) |
| 2365 | CUR.func_dualproj = (TT_Project_Func)Project_y; |
| 2366 | else |
| 2367 | CUR.func_dualproj = (TT_Project_Func)Dual_Project; |
| 2368 | } |
| 2369 | |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 2370 | CUR.func_move = (TT_Move_Func)Direct_Move; |
| 2371 | CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2372 | |
| 2373 | if ( CUR.F_dot_P == 0x40000000L ) |
| 2374 | { |
| 2375 | if ( CUR.GS.freeVector.x == 0x4000 ) |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 2376 | { |
| 2377 | CUR.func_move = (TT_Move_Func)Direct_Move_X; |
| 2378 | CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_X; |
| 2379 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2380 | else |
| 2381 | { |
| 2382 | if ( CUR.GS.freeVector.y == 0x4000 ) |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 2383 | { |
| 2384 | CUR.func_move = (TT_Move_Func)Direct_Move_Y; |
| 2385 | CUR.func_move_orig = (TT_Move_Func)Direct_Move_Orig_Y; |
| 2386 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2387 | } |
| 2388 | } |
| 2389 | |
| 2390 | /* at small sizes, F_dot_P can become too small, resulting */ |
| 2391 | /* in overflows and `spikes' in a number of glyphs like `w'. */ |
| 2392 | |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 2393 | if ( FT_ABS( CUR.F_dot_P ) < 0x4000000L ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2394 | CUR.F_dot_P = 0x40000000L; |
| 2395 | |
| 2396 | /* Disable cached aspect ratio */ |
| 2397 | CUR.tt_metrics.ratio = 0; |
| 2398 | } |
| 2399 | |
| 2400 | |
| 2401 | /*************************************************************************/ |
| 2402 | /* */ |
| 2403 | /* <Function> */ |
| 2404 | /* Normalize */ |
| 2405 | /* */ |
| 2406 | /* <Description> */ |
| 2407 | /* Norms a vector. */ |
| 2408 | /* */ |
| 2409 | /* <Input> */ |
| 2410 | /* Vx :: The horizontal input vector coordinate. */ |
| 2411 | /* Vy :: The vertical input vector coordinate. */ |
| 2412 | /* */ |
| 2413 | /* <Output> */ |
| 2414 | /* R :: The normed unit vector. */ |
| 2415 | /* */ |
| 2416 | /* <Return> */ |
| 2417 | /* Returns FAILURE if a vector parameter is zero. */ |
| 2418 | /* */ |
| 2419 | /* <Note> */ |
| 2420 | /* In case Vx and Vy are both zero, Normalize() returns SUCCESS, and */ |
| 2421 | /* R is undefined. */ |
| 2422 | /* */ |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2423 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2424 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2425 | static FT_Bool |
| 2426 | Normalize( EXEC_OP_ FT_F26Dot6 Vx, |
| 2427 | FT_F26Dot6 Vy, |
| 2428 | FT_UnitVector* R ) |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2429 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2430 | FT_F26Dot6 W; |
| 2431 | FT_Bool S1, S2; |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2432 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 2433 | FT_UNUSED_EXEC; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 2434 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2435 | |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 2436 | if ( FT_ABS( Vx ) < 0x10000L && FT_ABS( Vy ) < 0x10000L ) |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2437 | { |
| 2438 | Vx *= 0x100; |
| 2439 | Vy *= 0x100; |
| 2440 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 2441 | W = TT_VecLen( Vx, Vy ); |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2442 | |
| 2443 | if ( W == 0 ) |
| 2444 | { |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 2445 | /* XXX: UNDOCUMENTED! It seems that it is possible to try */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2446 | /* to normalize the vector (0,0). Return immediately. */ |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2447 | return SUCCESS; |
| 2448 | } |
| 2449 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2450 | R->x = (FT_F2Dot14)FT_MulDiv( Vx, 0x4000L, W ); |
| 2451 | R->y = (FT_F2Dot14)FT_MulDiv( Vy, 0x4000L, W ); |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2452 | |
| 2453 | return SUCCESS; |
| 2454 | } |
| 2455 | |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 2456 | W = TT_VecLen( Vx, Vy ); |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2457 | |
| 2458 | Vx = FT_MulDiv( Vx, 0x4000L, W ); |
| 2459 | Vy = FT_MulDiv( Vy, 0x4000L, W ); |
| 2460 | |
| 2461 | W = Vx * Vx + Vy * Vy; |
| 2462 | |
| 2463 | /* Now, we want that Sqrt( W ) = 0x4000 */ |
David Turner | 5ab4136 | 2004-07-18 07:15:18 +0000 | [diff] [blame] | 2464 | /* Or 0x10000000 <= W < 0x10004000 */ |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2465 | |
| 2466 | if ( Vx < 0 ) |
| 2467 | { |
| 2468 | Vx = -Vx; |
| 2469 | S1 = TRUE; |
| 2470 | } |
| 2471 | else |
| 2472 | S1 = FALSE; |
| 2473 | |
| 2474 | if ( Vy < 0 ) |
| 2475 | { |
| 2476 | Vy = -Vy; |
| 2477 | S2 = TRUE; |
| 2478 | } |
| 2479 | else |
| 2480 | S2 = FALSE; |
| 2481 | |
David Turner | 5ab4136 | 2004-07-18 07:15:18 +0000 | [diff] [blame] | 2482 | while ( W < 0x10000000L ) |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2483 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2484 | /* We need to increase W by a minimal amount */ |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2485 | if ( Vx < Vy ) |
| 2486 | Vx++; |
| 2487 | else |
| 2488 | Vy++; |
| 2489 | |
| 2490 | W = Vx * Vx + Vy * Vy; |
| 2491 | } |
| 2492 | |
David Turner | 5ab4136 | 2004-07-18 07:15:18 +0000 | [diff] [blame] | 2493 | while ( W >= 0x10004000L ) |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2494 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2495 | /* We need to decrease W by a minimal amount */ |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2496 | if ( Vx < Vy ) |
| 2497 | Vx--; |
| 2498 | else |
| 2499 | Vy--; |
| 2500 | |
| 2501 | W = Vx * Vx + Vy * Vy; |
| 2502 | } |
| 2503 | |
| 2504 | /* Note that in various cases, we can only */ |
| 2505 | /* compute a Sqrt(W) of 0x3FFF, eg. Vx = Vy */ |
| 2506 | |
| 2507 | if ( S1 ) |
| 2508 | Vx = -Vx; |
| 2509 | |
| 2510 | if ( S2 ) |
| 2511 | Vy = -Vy; |
| 2512 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2513 | R->x = (FT_F2Dot14)Vx; /* Type conversion */ |
| 2514 | R->y = (FT_F2Dot14)Vy; /* Type conversion */ |
David Turner | b7ef2b0 | 2000-05-02 11:01:12 +0000 | [diff] [blame] | 2515 | |
| 2516 | return SUCCESS; |
| 2517 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2518 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2519 | |
| 2520 | /*************************************************************************/ |
| 2521 | /* */ |
| 2522 | /* Here we start with the implementation of the various opcodes. */ |
| 2523 | /* */ |
| 2524 | /*************************************************************************/ |
| 2525 | |
| 2526 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 2527 | static FT_Bool |
| 2528 | Ins_SxVTL( EXEC_OP_ FT_UShort aIdx1, |
| 2529 | FT_UShort aIdx2, |
| 2530 | FT_Int aOpc, |
| 2531 | FT_UnitVector* Vec ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2532 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2533 | FT_Long A, B, C; |
| 2534 | FT_Vector* p1; |
| 2535 | FT_Vector* p2; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2536 | |
| 2537 | |
| 2538 | if ( BOUNDS( aIdx1, CUR.zp2.n_points ) || |
| 2539 | BOUNDS( aIdx2, CUR.zp1.n_points ) ) |
| 2540 | { |
| 2541 | if ( CUR.pedantic_hinting ) |
| 2542 | CUR.error = TT_Err_Invalid_Reference; |
| 2543 | return FAILURE; |
| 2544 | } |
| 2545 | |
| 2546 | p1 = CUR.zp1.cur + aIdx2; |
| 2547 | p2 = CUR.zp2.cur + aIdx1; |
| 2548 | |
| 2549 | A = p1->x - p2->x; |
| 2550 | B = p1->y - p2->y; |
| 2551 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2552 | if ( ( aOpc & 1 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2553 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2554 | C = B; /* counter clockwise rotation */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2555 | B = A; |
| 2556 | A = -C; |
| 2557 | } |
| 2558 | |
| 2559 | NORMalize( A, B, Vec ); |
| 2560 | |
| 2561 | return SUCCESS; |
| 2562 | } |
| 2563 | |
| 2564 | |
| 2565 | /* When not using the big switch statements, the interpreter uses a */ |
| 2566 | /* call table defined later below in this source. Each opcode must */ |
| 2567 | /* thus have a corresponding function, even trivial ones. */ |
| 2568 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2569 | /* They are all defined there. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2570 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2571 | #define DO_SVTCA \ |
| 2572 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2573 | FT_Short A, B; \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2574 | \ |
| 2575 | \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2576 | A = (FT_Short)( CUR.opcode & 1 ) << 14; \ |
| 2577 | B = A ^ (FT_Short)0x4000; \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2578 | \ |
| 2579 | CUR.GS.freeVector.x = A; \ |
| 2580 | CUR.GS.projVector.x = A; \ |
| 2581 | CUR.GS.dualVector.x = A; \ |
| 2582 | \ |
| 2583 | CUR.GS.freeVector.y = B; \ |
| 2584 | CUR.GS.projVector.y = B; \ |
| 2585 | CUR.GS.dualVector.y = B; \ |
| 2586 | \ |
| 2587 | COMPUTE_Funcs(); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2588 | } |
| 2589 | |
| 2590 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2591 | #define DO_SPVTCA \ |
| 2592 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2593 | FT_Short A, B; \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2594 | \ |
| 2595 | \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2596 | A = (FT_Short)( CUR.opcode & 1 ) << 14; \ |
| 2597 | B = A ^ (FT_Short)0x4000; \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2598 | \ |
| 2599 | CUR.GS.projVector.x = A; \ |
| 2600 | CUR.GS.dualVector.x = A; \ |
| 2601 | \ |
| 2602 | CUR.GS.projVector.y = B; \ |
| 2603 | CUR.GS.dualVector.y = B; \ |
| 2604 | \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2605 | GUESS_VECTOR( freeVector ); \ |
| 2606 | \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2607 | COMPUTE_Funcs(); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2608 | } |
| 2609 | |
| 2610 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2611 | #define DO_SFVTCA \ |
| 2612 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2613 | FT_Short A, B; \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2614 | \ |
| 2615 | \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2616 | A = (FT_Short)( CUR.opcode & 1 ) << 14; \ |
| 2617 | B = A ^ (FT_Short)0x4000; \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2618 | \ |
| 2619 | CUR.GS.freeVector.x = A; \ |
| 2620 | CUR.GS.freeVector.y = B; \ |
| 2621 | \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2622 | GUESS_VECTOR( projVector ); \ |
| 2623 | \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2624 | COMPUTE_Funcs(); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2625 | } |
| 2626 | |
| 2627 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2628 | #define DO_SPVTL \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2629 | if ( INS_SxVTL( (FT_UShort)args[1], \ |
| 2630 | (FT_UShort)args[0], \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2631 | CUR.opcode, \ |
| 2632 | &CUR.GS.projVector ) == SUCCESS ) \ |
| 2633 | { \ |
| 2634 | CUR.GS.dualVector = CUR.GS.projVector; \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2635 | GUESS_VECTOR( freeVector ); \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2636 | COMPUTE_Funcs(); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2637 | } |
| 2638 | |
| 2639 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2640 | #define DO_SFVTL \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2641 | if ( INS_SxVTL( (FT_UShort)args[1], \ |
| 2642 | (FT_UShort)args[0], \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2643 | CUR.opcode, \ |
| 2644 | &CUR.GS.freeVector ) == SUCCESS ) \ |
Werner Lemberg | f79a7ae | 2003-05-21 21:47:25 +0000 | [diff] [blame] | 2645 | { \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2646 | GUESS_VECTOR( projVector ); \ |
Werner Lemberg | f79a7ae | 2003-05-21 21:47:25 +0000 | [diff] [blame] | 2647 | COMPUTE_Funcs(); \ |
| 2648 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2649 | |
| 2650 | |
| 2651 | #define DO_SFVTPV \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2652 | GUESS_VECTOR( projVector ); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2653 | CUR.GS.freeVector = CUR.GS.projVector; \ |
| 2654 | COMPUTE_Funcs(); |
| 2655 | |
| 2656 | |
| 2657 | #define DO_SPVFS \ |
| 2658 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2659 | FT_Short S; \ |
| 2660 | FT_Long X, Y; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2661 | \ |
| 2662 | \ |
| 2663 | /* Only use low 16bits, then sign extend */ \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2664 | S = (FT_Short)args[1]; \ |
| 2665 | Y = (FT_Long)S; \ |
| 2666 | S = (FT_Short)args[0]; \ |
| 2667 | X = (FT_Long)S; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2668 | \ |
| 2669 | NORMalize( X, Y, &CUR.GS.projVector ); \ |
| 2670 | \ |
| 2671 | CUR.GS.dualVector = CUR.GS.projVector; \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2672 | GUESS_VECTOR( freeVector ); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2673 | COMPUTE_Funcs(); \ |
| 2674 | } |
| 2675 | |
| 2676 | |
| 2677 | #define DO_SFVFS \ |
| 2678 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2679 | FT_Short S; \ |
| 2680 | FT_Long X, Y; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2681 | \ |
| 2682 | \ |
| 2683 | /* Only use low 16bits, then sign extend */ \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2684 | S = (FT_Short)args[1]; \ |
| 2685 | Y = (FT_Long)S; \ |
| 2686 | S = (FT_Short)args[0]; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2687 | X = S; \ |
| 2688 | \ |
| 2689 | NORMalize( X, Y, &CUR.GS.freeVector ); \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2690 | GUESS_VECTOR( projVector ); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2691 | COMPUTE_Funcs(); \ |
| 2692 | } |
| 2693 | |
| 2694 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 2695 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2696 | #define DO_GPV \ |
| 2697 | if ( CUR.face->unpatented_hinting ) \ |
| 2698 | { \ |
| 2699 | args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \ |
| 2700 | args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \ |
| 2701 | } \ |
| 2702 | else \ |
| 2703 | { \ |
| 2704 | args[0] = CUR.GS.projVector.x; \ |
| 2705 | args[1] = CUR.GS.projVector.y; \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2706 | } |
| 2707 | #else |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2708 | #define DO_GPV \ |
| 2709 | args[0] = CUR.GS.projVector.x; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2710 | args[1] = CUR.GS.projVector.y; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2711 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2712 | |
| 2713 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 2714 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2715 | #define DO_GFV \ |
| 2716 | if ( CUR.face->unpatented_hinting ) \ |
| 2717 | { \ |
| 2718 | args[0] = CUR.GS.both_x_axis ? 0x4000 : 0; \ |
| 2719 | args[1] = CUR.GS.both_x_axis ? 0 : 0x4000; \ |
| 2720 | } \ |
| 2721 | else \ |
| 2722 | { \ |
| 2723 | args[0] = CUR.GS.freeVector.x; \ |
| 2724 | args[1] = CUR.GS.freeVector.y; \ |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2725 | } |
| 2726 | #else |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 2727 | #define DO_GFV \ |
| 2728 | args[0] = CUR.GS.freeVector.x; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2729 | args[1] = CUR.GS.freeVector.y; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 2730 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2731 | |
| 2732 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2733 | #define DO_SRP0 \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2734 | CUR.GS.rp0 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2735 | |
| 2736 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2737 | #define DO_SRP1 \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2738 | CUR.GS.rp1 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2739 | |
| 2740 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2741 | #define DO_SRP2 \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2742 | CUR.GS.rp2 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2743 | |
| 2744 | |
| 2745 | #define DO_RTHG \ |
| 2746 | CUR.GS.round_state = TT_Round_To_Half_Grid; \ |
| 2747 | CUR.func_round = (TT_Round_Func)Round_To_Half_Grid; |
| 2748 | |
| 2749 | |
| 2750 | #define DO_RTG \ |
| 2751 | CUR.GS.round_state = TT_Round_To_Grid; \ |
| 2752 | CUR.func_round = (TT_Round_Func)Round_To_Grid; |
| 2753 | |
| 2754 | |
| 2755 | #define DO_RTDG \ |
| 2756 | CUR.GS.round_state = TT_Round_To_Double_Grid; \ |
| 2757 | CUR.func_round = (TT_Round_Func)Round_To_Double_Grid; |
| 2758 | |
| 2759 | |
| 2760 | #define DO_RUTG \ |
| 2761 | CUR.GS.round_state = TT_Round_Up_To_Grid; \ |
| 2762 | CUR.func_round = (TT_Round_Func)Round_Up_To_Grid; |
| 2763 | |
| 2764 | |
| 2765 | #define DO_RDTG \ |
| 2766 | CUR.GS.round_state = TT_Round_Down_To_Grid; \ |
| 2767 | CUR.func_round = (TT_Round_Func)Round_Down_To_Grid; |
| 2768 | |
| 2769 | |
| 2770 | #define DO_ROFF \ |
| 2771 | CUR.GS.round_state = TT_Round_Off; \ |
| 2772 | CUR.func_round = (TT_Round_Func)Round_None; |
| 2773 | |
| 2774 | |
| 2775 | #define DO_SROUND \ |
| 2776 | SET_SuperRound( 0x4000, args[0] ); \ |
| 2777 | CUR.GS.round_state = TT_Round_Super; \ |
| 2778 | CUR.func_round = (TT_Round_Func)Round_Super; |
| 2779 | |
| 2780 | |
| 2781 | #define DO_S45ROUND \ |
| 2782 | SET_SuperRound( 0x2D41, args[0] ); \ |
| 2783 | CUR.GS.round_state = TT_Round_Super_45; \ |
| 2784 | CUR.func_round = (TT_Round_Func)Round_Super_45; |
| 2785 | |
| 2786 | |
| 2787 | #define DO_SLOOP \ |
| 2788 | if ( args[0] < 0 ) \ |
| 2789 | CUR.error = TT_Err_Bad_Argument; \ |
| 2790 | else \ |
| 2791 | CUR.GS.loop = args[0]; |
| 2792 | |
| 2793 | |
| 2794 | #define DO_SMD \ |
| 2795 | CUR.GS.minimum_distance = args[0]; |
| 2796 | |
| 2797 | |
| 2798 | #define DO_SCVTCI \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2799 | CUR.GS.control_value_cutin = (FT_F26Dot6)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2800 | |
| 2801 | |
| 2802 | #define DO_SSWCI \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2803 | CUR.GS.single_width_cutin = (FT_F26Dot6)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2804 | |
| 2805 | |
Werner Lemberg | 555258f | 2007-01-21 09:46:37 +0000 | [diff] [blame] | 2806 | /* XXX: UNDOCUMENTED! or bug in the Windows engine? */ |
| 2807 | /* */ |
| 2808 | /* It seems that the value that is read here is */ |
| 2809 | /* expressed in 16.16 format rather than in font */ |
| 2810 | /* units. */ |
| 2811 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2812 | #define DO_SSW \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2813 | CUR.GS.single_width_value = (FT_F26Dot6)( args[0] >> 10 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2814 | |
| 2815 | |
| 2816 | #define DO_FLIPON \ |
| 2817 | CUR.GS.auto_flip = TRUE; |
| 2818 | |
| 2819 | |
| 2820 | #define DO_FLIPOFF \ |
| 2821 | CUR.GS.auto_flip = FALSE; |
| 2822 | |
| 2823 | |
| 2824 | #define DO_SDB \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2825 | CUR.GS.delta_base = (FT_Short)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2826 | |
| 2827 | |
| 2828 | #define DO_SDS \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2829 | CUR.GS.delta_shift = (FT_Short)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2830 | |
| 2831 | |
| 2832 | #define DO_MD /* nothing */ |
| 2833 | |
| 2834 | |
| 2835 | #define DO_MPPEM \ |
| 2836 | args[0] = CURRENT_Ppem(); |
| 2837 | |
| 2838 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2839 | /* Note: The pointSize should be irrelevant in a given font program; */ |
| 2840 | /* we thus decide to return only the ppem. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2841 | #if 0 |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2842 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2843 | #define DO_MPS \ |
| 2844 | args[0] = CUR.metrics.pointSize; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2845 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2846 | #else |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2847 | |
| 2848 | #define DO_MPS \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2849 | args[0] = CURRENT_Ppem(); |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2850 | |
| 2851 | #endif /* 0 */ |
| 2852 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2853 | |
| 2854 | #define DO_DUP \ |
| 2855 | args[1] = args[0]; |
| 2856 | |
| 2857 | |
| 2858 | #define DO_CLEAR \ |
| 2859 | CUR.new_top = 0; |
| 2860 | |
| 2861 | |
| 2862 | #define DO_SWAP \ |
| 2863 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2864 | FT_Long L; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2865 | \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2866 | \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2867 | L = args[0]; \ |
| 2868 | args[0] = args[1]; \ |
| 2869 | args[1] = L; \ |
| 2870 | } |
| 2871 | |
| 2872 | |
| 2873 | #define DO_DEPTH \ |
| 2874 | args[0] = CUR.top; |
| 2875 | |
| 2876 | |
| 2877 | #define DO_CINDEX \ |
| 2878 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2879 | FT_Long L; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2880 | \ |
| 2881 | \ |
| 2882 | L = args[0]; \ |
| 2883 | \ |
| 2884 | if ( L <= 0 || L > CUR.args ) \ |
| 2885 | CUR.error = TT_Err_Invalid_Reference; \ |
| 2886 | else \ |
| 2887 | args[0] = CUR.stack[CUR.args - L]; \ |
| 2888 | } |
| 2889 | |
| 2890 | |
| 2891 | #define DO_JROT \ |
| 2892 | if ( args[1] != 0 ) \ |
| 2893 | { \ |
| 2894 | CUR.IP += args[0]; \ |
| 2895 | CUR.step_ins = FALSE; \ |
| 2896 | } |
| 2897 | |
| 2898 | |
| 2899 | #define DO_JMPR \ |
| 2900 | CUR.IP += args[0]; \ |
| 2901 | CUR.step_ins = FALSE; |
| 2902 | |
| 2903 | |
| 2904 | #define DO_JROF \ |
| 2905 | if ( args[1] == 0 ) \ |
| 2906 | { \ |
| 2907 | CUR.IP += args[0]; \ |
| 2908 | CUR.step_ins = FALSE; \ |
| 2909 | } |
| 2910 | |
| 2911 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2912 | #define DO_LT \ |
| 2913 | args[0] = ( args[0] < args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2914 | |
| 2915 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2916 | #define DO_LTEQ \ |
| 2917 | args[0] = ( args[0] <= args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2918 | |
| 2919 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2920 | #define DO_GT \ |
| 2921 | args[0] = ( args[0] > args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2922 | |
| 2923 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2924 | #define DO_GTEQ \ |
| 2925 | args[0] = ( args[0] >= args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2926 | |
| 2927 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2928 | #define DO_EQ \ |
| 2929 | args[0] = ( args[0] == args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2930 | |
| 2931 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2932 | #define DO_NEQ \ |
| 2933 | args[0] = ( args[0] != args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2934 | |
| 2935 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2936 | #define DO_ODD \ |
| 2937 | args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 64 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2938 | |
| 2939 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 2940 | #define DO_EVEN \ |
| 2941 | args[0] = ( ( CUR_Func_round( args[0], 0 ) & 127 ) == 0 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2942 | |
| 2943 | |
| 2944 | #define DO_AND \ |
| 2945 | args[0] = ( args[0] && args[1] ); |
| 2946 | |
| 2947 | |
| 2948 | #define DO_OR \ |
| 2949 | args[0] = ( args[0] || args[1] ); |
| 2950 | |
| 2951 | |
| 2952 | #define DO_NOT \ |
| 2953 | args[0] = !args[0]; |
| 2954 | |
| 2955 | |
| 2956 | #define DO_ADD \ |
| 2957 | args[0] += args[1]; |
| 2958 | |
| 2959 | |
| 2960 | #define DO_SUB \ |
| 2961 | args[0] -= args[1]; |
| 2962 | |
| 2963 | |
Werner Lemberg | 9f051a7 | 2003-11-25 18:15:56 +0000 | [diff] [blame] | 2964 | #define DO_DIV \ |
| 2965 | if ( args[1] == 0 ) \ |
| 2966 | CUR.error = TT_Err_Divide_By_Zero; \ |
| 2967 | else \ |
| 2968 | args[0] = TT_MULDIV_NO_ROUND( args[0], 64L, args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2969 | |
| 2970 | |
| 2971 | #define DO_MUL \ |
| 2972 | args[0] = TT_MULDIV( args[0], args[1], 64L ); |
| 2973 | |
| 2974 | |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 2975 | #define DO_ABS \ |
| 2976 | args[0] = FT_ABS( args[0] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2977 | |
| 2978 | |
| 2979 | #define DO_NEG \ |
| 2980 | args[0] = -args[0]; |
| 2981 | |
| 2982 | |
| 2983 | #define DO_FLOOR \ |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 2984 | args[0] = FT_PIX_FLOOR( args[0] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2985 | |
| 2986 | |
| 2987 | #define DO_CEILING \ |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 2988 | args[0] = FT_PIX_CEIL( args[0] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2989 | |
| 2990 | |
| 2991 | #define DO_RS \ |
| 2992 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 2993 | FT_ULong I = (FT_ULong)args[0]; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 2994 | \ |
| 2995 | \ |
| 2996 | if ( BOUNDS( I, CUR.storeSize ) ) \ |
| 2997 | { \ |
| 2998 | if ( CUR.pedantic_hinting ) \ |
| 2999 | { \ |
| 3000 | ARRAY_BOUND_ERROR; \ |
| 3001 | } \ |
| 3002 | else \ |
| 3003 | args[0] = 0; \ |
| 3004 | } \ |
| 3005 | else \ |
| 3006 | args[0] = CUR.storage[I]; \ |
| 3007 | } |
| 3008 | |
| 3009 | |
| 3010 | #define DO_WS \ |
| 3011 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 3012 | FT_ULong I = (FT_ULong)args[0]; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3013 | \ |
| 3014 | \ |
| 3015 | if ( BOUNDS( I, CUR.storeSize ) ) \ |
| 3016 | { \ |
| 3017 | if ( CUR.pedantic_hinting ) \ |
| 3018 | { \ |
| 3019 | ARRAY_BOUND_ERROR; \ |
| 3020 | } \ |
| 3021 | } \ |
| 3022 | else \ |
| 3023 | CUR.storage[I] = args[1]; \ |
| 3024 | } |
| 3025 | |
| 3026 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 3027 | #define DO_RCVT \ |
| 3028 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 3029 | FT_ULong I = (FT_ULong)args[0]; \ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 3030 | \ |
| 3031 | \ |
| 3032 | if ( BOUNDS( I, CUR.cvtSize ) ) \ |
| 3033 | { \ |
| 3034 | if ( CUR.pedantic_hinting ) \ |
| 3035 | { \ |
| 3036 | ARRAY_BOUND_ERROR; \ |
| 3037 | } \ |
| 3038 | else \ |
| 3039 | args[0] = 0; \ |
| 3040 | } \ |
| 3041 | else \ |
| 3042 | args[0] = CUR_Func_read_cvt( I ); \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3043 | } |
| 3044 | |
| 3045 | |
| 3046 | #define DO_WCVTP \ |
| 3047 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 3048 | FT_ULong I = (FT_ULong)args[0]; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3049 | \ |
| 3050 | \ |
| 3051 | if ( BOUNDS( I, CUR.cvtSize ) ) \ |
| 3052 | { \ |
| 3053 | if ( CUR.pedantic_hinting ) \ |
| 3054 | { \ |
| 3055 | ARRAY_BOUND_ERROR; \ |
| 3056 | } \ |
| 3057 | } \ |
| 3058 | else \ |
| 3059 | CUR_Func_write_cvt( I, args[1] ); \ |
| 3060 | } |
| 3061 | |
| 3062 | |
| 3063 | #define DO_WCVTF \ |
| 3064 | { \ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 3065 | FT_ULong I = (FT_ULong)args[0]; \ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3066 | \ |
| 3067 | \ |
| 3068 | if ( BOUNDS( I, CUR.cvtSize ) ) \ |
| 3069 | { \ |
| 3070 | if ( CUR.pedantic_hinting ) \ |
| 3071 | { \ |
| 3072 | ARRAY_BOUND_ERROR; \ |
| 3073 | } \ |
| 3074 | } \ |
| 3075 | else \ |
| 3076 | CUR.cvt[I] = TT_MULFIX( args[1], CUR.tt_metrics.scale ); \ |
| 3077 | } |
| 3078 | |
| 3079 | |
| 3080 | #define DO_DEBUG \ |
| 3081 | CUR.error = TT_Err_Debug_OpCode; |
| 3082 | |
| 3083 | |
| 3084 | #define DO_ROUND \ |
| 3085 | args[0] = CUR_Func_round( \ |
| 3086 | args[0], \ |
| 3087 | CUR.tt_metrics.compensations[CUR.opcode - 0x68] ); |
| 3088 | |
| 3089 | |
| 3090 | #define DO_NROUND \ |
| 3091 | args[0] = ROUND_None( args[0], \ |
| 3092 | CUR.tt_metrics.compensations[CUR.opcode - 0x6C] ); |
| 3093 | |
| 3094 | |
| 3095 | #define DO_MAX \ |
| 3096 | if ( args[1] > args[0] ) \ |
| 3097 | args[0] = args[1]; |
| 3098 | |
| 3099 | |
| 3100 | #define DO_MIN \ |
| 3101 | if ( args[1] < args[0] ) \ |
| 3102 | args[0] = args[1]; |
| 3103 | |
| 3104 | |
| 3105 | #ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH |
| 3106 | |
| 3107 | |
| 3108 | #undef ARRAY_BOUND_ERROR |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 3109 | #define ARRAY_BOUND_ERROR \ |
| 3110 | { \ |
| 3111 | CUR.error = TT_Err_Invalid_Reference; \ |
| 3112 | return; \ |
| 3113 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3114 | |
| 3115 | |
| 3116 | /*************************************************************************/ |
| 3117 | /* */ |
| 3118 | /* SVTCA[a]: Set (F and P) Vectors to Coordinate Axis */ |
| 3119 | /* Opcode range: 0x00-0x01 */ |
| 3120 | /* Stack: --> */ |
| 3121 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3122 | static void |
| 3123 | Ins_SVTCA( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3124 | { |
| 3125 | DO_SVTCA |
| 3126 | } |
| 3127 | |
| 3128 | |
| 3129 | /*************************************************************************/ |
| 3130 | /* */ |
| 3131 | /* SPVTCA[a]: Set PVector to Coordinate Axis */ |
| 3132 | /* Opcode range: 0x02-0x03 */ |
| 3133 | /* Stack: --> */ |
| 3134 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3135 | static void |
| 3136 | Ins_SPVTCA( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3137 | { |
| 3138 | DO_SPVTCA |
| 3139 | } |
| 3140 | |
| 3141 | |
| 3142 | /*************************************************************************/ |
| 3143 | /* */ |
| 3144 | /* SFVTCA[a]: Set FVector to Coordinate Axis */ |
| 3145 | /* Opcode range: 0x04-0x05 */ |
| 3146 | /* Stack: --> */ |
| 3147 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3148 | static void |
| 3149 | Ins_SFVTCA( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3150 | { |
| 3151 | DO_SFVTCA |
| 3152 | } |
| 3153 | |
| 3154 | |
| 3155 | /*************************************************************************/ |
| 3156 | /* */ |
| 3157 | /* SPVTL[a]: Set PVector To Line */ |
| 3158 | /* Opcode range: 0x06-0x07 */ |
| 3159 | /* Stack: uint32 uint32 --> */ |
| 3160 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3161 | static void |
| 3162 | Ins_SPVTL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3163 | { |
| 3164 | DO_SPVTL |
| 3165 | } |
| 3166 | |
| 3167 | |
| 3168 | /*************************************************************************/ |
| 3169 | /* */ |
| 3170 | /* SFVTL[a]: Set FVector To Line */ |
| 3171 | /* Opcode range: 0x08-0x09 */ |
| 3172 | /* Stack: uint32 uint32 --> */ |
| 3173 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3174 | static void |
| 3175 | Ins_SFVTL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3176 | { |
| 3177 | DO_SFVTL |
| 3178 | } |
| 3179 | |
| 3180 | |
| 3181 | /*************************************************************************/ |
| 3182 | /* */ |
| 3183 | /* SFVTPV[]: Set FVector To PVector */ |
| 3184 | /* Opcode range: 0x0E */ |
| 3185 | /* Stack: --> */ |
| 3186 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3187 | static void |
| 3188 | Ins_SFVTPV( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3189 | { |
| 3190 | DO_SFVTPV |
| 3191 | } |
| 3192 | |
| 3193 | |
| 3194 | /*************************************************************************/ |
| 3195 | /* */ |
| 3196 | /* SPVFS[]: Set PVector From Stack */ |
| 3197 | /* Opcode range: 0x0A */ |
| 3198 | /* Stack: f2.14 f2.14 --> */ |
| 3199 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3200 | static void |
| 3201 | Ins_SPVFS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3202 | { |
| 3203 | DO_SPVFS |
| 3204 | } |
| 3205 | |
| 3206 | |
| 3207 | /*************************************************************************/ |
| 3208 | /* */ |
| 3209 | /* SFVFS[]: Set FVector From Stack */ |
| 3210 | /* Opcode range: 0x0B */ |
| 3211 | /* Stack: f2.14 f2.14 --> */ |
| 3212 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3213 | static void |
| 3214 | Ins_SFVFS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3215 | { |
| 3216 | DO_SFVFS |
| 3217 | } |
| 3218 | |
| 3219 | |
| 3220 | /*************************************************************************/ |
| 3221 | /* */ |
| 3222 | /* GPV[]: Get Projection Vector */ |
| 3223 | /* Opcode range: 0x0C */ |
| 3224 | /* Stack: ef2.14 --> ef2.14 */ |
| 3225 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3226 | static void |
| 3227 | Ins_GPV( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3228 | { |
| 3229 | DO_GPV |
| 3230 | } |
| 3231 | |
| 3232 | |
| 3233 | /*************************************************************************/ |
| 3234 | /* GFV[]: Get Freedom Vector */ |
| 3235 | /* Opcode range: 0x0D */ |
| 3236 | /* Stack: ef2.14 --> ef2.14 */ |
| 3237 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3238 | static void |
| 3239 | Ins_GFV( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3240 | { |
| 3241 | DO_GFV |
| 3242 | } |
| 3243 | |
| 3244 | |
| 3245 | /*************************************************************************/ |
| 3246 | /* */ |
| 3247 | /* SRP0[]: Set Reference Point 0 */ |
| 3248 | /* Opcode range: 0x10 */ |
| 3249 | /* Stack: uint32 --> */ |
| 3250 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3251 | static void |
| 3252 | Ins_SRP0( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3253 | { |
| 3254 | DO_SRP0 |
| 3255 | } |
| 3256 | |
| 3257 | |
| 3258 | /*************************************************************************/ |
| 3259 | /* */ |
| 3260 | /* SRP1[]: Set Reference Point 1 */ |
| 3261 | /* Opcode range: 0x11 */ |
| 3262 | /* Stack: uint32 --> */ |
| 3263 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3264 | static void |
| 3265 | Ins_SRP1( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3266 | { |
| 3267 | DO_SRP1 |
| 3268 | } |
| 3269 | |
| 3270 | |
| 3271 | /*************************************************************************/ |
| 3272 | /* */ |
| 3273 | /* SRP2[]: Set Reference Point 2 */ |
| 3274 | /* Opcode range: 0x12 */ |
| 3275 | /* Stack: uint32 --> */ |
| 3276 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3277 | static void |
| 3278 | Ins_SRP2( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3279 | { |
| 3280 | DO_SRP2 |
| 3281 | } |
| 3282 | |
| 3283 | |
| 3284 | /*************************************************************************/ |
| 3285 | /* */ |
| 3286 | /* RTHG[]: Round To Half Grid */ |
| 3287 | /* Opcode range: 0x19 */ |
| 3288 | /* Stack: --> */ |
| 3289 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3290 | static void |
| 3291 | Ins_RTHG( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3292 | { |
| 3293 | DO_RTHG |
| 3294 | } |
| 3295 | |
| 3296 | |
| 3297 | /*************************************************************************/ |
| 3298 | /* */ |
| 3299 | /* RTG[]: Round To Grid */ |
| 3300 | /* Opcode range: 0x18 */ |
| 3301 | /* Stack: --> */ |
| 3302 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3303 | static void |
| 3304 | Ins_RTG( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3305 | { |
| 3306 | DO_RTG |
| 3307 | } |
| 3308 | |
| 3309 | |
| 3310 | /*************************************************************************/ |
| 3311 | /* RTDG[]: Round To Double Grid */ |
| 3312 | /* Opcode range: 0x3D */ |
| 3313 | /* Stack: --> */ |
| 3314 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3315 | static void |
| 3316 | Ins_RTDG( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3317 | { |
| 3318 | DO_RTDG |
| 3319 | } |
| 3320 | |
| 3321 | |
| 3322 | /*************************************************************************/ |
| 3323 | /* RUTG[]: Round Up To Grid */ |
| 3324 | /* Opcode range: 0x7C */ |
| 3325 | /* Stack: --> */ |
| 3326 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3327 | static void |
| 3328 | Ins_RUTG( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3329 | { |
| 3330 | DO_RUTG |
| 3331 | } |
| 3332 | |
| 3333 | |
| 3334 | /*************************************************************************/ |
| 3335 | /* */ |
| 3336 | /* RDTG[]: Round Down To Grid */ |
| 3337 | /* Opcode range: 0x7D */ |
| 3338 | /* Stack: --> */ |
| 3339 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3340 | static void |
| 3341 | Ins_RDTG( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3342 | { |
| 3343 | DO_RDTG |
| 3344 | } |
| 3345 | |
| 3346 | |
| 3347 | /*************************************************************************/ |
| 3348 | /* */ |
| 3349 | /* ROFF[]: Round OFF */ |
| 3350 | /* Opcode range: 0x7A */ |
| 3351 | /* Stack: --> */ |
| 3352 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3353 | static void |
| 3354 | Ins_ROFF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3355 | { |
| 3356 | DO_ROFF |
| 3357 | } |
| 3358 | |
| 3359 | |
| 3360 | /*************************************************************************/ |
| 3361 | /* */ |
| 3362 | /* SROUND[]: Super ROUND */ |
| 3363 | /* Opcode range: 0x76 */ |
| 3364 | /* Stack: Eint8 --> */ |
| 3365 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3366 | static void |
| 3367 | Ins_SROUND( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3368 | { |
| 3369 | DO_SROUND |
| 3370 | } |
| 3371 | |
| 3372 | |
| 3373 | /*************************************************************************/ |
| 3374 | /* */ |
| 3375 | /* S45ROUND[]: Super ROUND 45 degrees */ |
| 3376 | /* Opcode range: 0x77 */ |
| 3377 | /* Stack: uint32 --> */ |
| 3378 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3379 | static void |
| 3380 | Ins_S45ROUND( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3381 | { |
| 3382 | DO_S45ROUND |
| 3383 | } |
| 3384 | |
| 3385 | |
| 3386 | /*************************************************************************/ |
| 3387 | /* */ |
| 3388 | /* SLOOP[]: Set LOOP variable */ |
| 3389 | /* Opcode range: 0x17 */ |
| 3390 | /* Stack: int32? --> */ |
| 3391 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3392 | static void |
| 3393 | Ins_SLOOP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3394 | { |
| 3395 | DO_SLOOP |
| 3396 | } |
| 3397 | |
| 3398 | |
| 3399 | /*************************************************************************/ |
| 3400 | /* */ |
| 3401 | /* SMD[]: Set Minimum Distance */ |
| 3402 | /* Opcode range: 0x1A */ |
| 3403 | /* Stack: f26.6 --> */ |
| 3404 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3405 | static void |
| 3406 | Ins_SMD( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3407 | { |
| 3408 | DO_SMD |
| 3409 | } |
| 3410 | |
| 3411 | |
| 3412 | /*************************************************************************/ |
| 3413 | /* */ |
| 3414 | /* SCVTCI[]: Set Control Value Table Cut In */ |
| 3415 | /* Opcode range: 0x1D */ |
| 3416 | /* Stack: f26.6 --> */ |
| 3417 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3418 | static void |
| 3419 | Ins_SCVTCI( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3420 | { |
| 3421 | DO_SCVTCI |
| 3422 | } |
| 3423 | |
| 3424 | |
| 3425 | /*************************************************************************/ |
| 3426 | /* */ |
| 3427 | /* SSWCI[]: Set Single Width Cut In */ |
| 3428 | /* Opcode range: 0x1E */ |
| 3429 | /* Stack: f26.6 --> */ |
| 3430 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3431 | static void |
| 3432 | Ins_SSWCI( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3433 | { |
| 3434 | DO_SSWCI |
| 3435 | } |
| 3436 | |
| 3437 | |
| 3438 | /*************************************************************************/ |
| 3439 | /* */ |
| 3440 | /* SSW[]: Set Single Width */ |
| 3441 | /* Opcode range: 0x1F */ |
| 3442 | /* Stack: int32? --> */ |
| 3443 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3444 | static void |
| 3445 | Ins_SSW( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3446 | { |
| 3447 | DO_SSW |
| 3448 | } |
| 3449 | |
| 3450 | |
| 3451 | /*************************************************************************/ |
| 3452 | /* */ |
| 3453 | /* FLIPON[]: Set auto-FLIP to ON */ |
| 3454 | /* Opcode range: 0x4D */ |
| 3455 | /* Stack: --> */ |
| 3456 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3457 | static void |
| 3458 | Ins_FLIPON( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3459 | { |
| 3460 | DO_FLIPON |
| 3461 | } |
| 3462 | |
| 3463 | |
| 3464 | /*************************************************************************/ |
| 3465 | /* */ |
| 3466 | /* FLIPOFF[]: Set auto-FLIP to OFF */ |
| 3467 | /* Opcode range: 0x4E */ |
| 3468 | /* Stack: --> */ |
| 3469 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3470 | static void |
| 3471 | Ins_FLIPOFF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3472 | { |
| 3473 | DO_FLIPOFF |
| 3474 | } |
| 3475 | |
| 3476 | |
| 3477 | /*************************************************************************/ |
| 3478 | /* */ |
| 3479 | /* SANGW[]: Set ANGle Weight */ |
| 3480 | /* Opcode range: 0x7E */ |
| 3481 | /* Stack: uint32 --> */ |
| 3482 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3483 | static void |
| 3484 | Ins_SANGW( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3485 | { |
| 3486 | /* instruction not supported anymore */ |
| 3487 | } |
| 3488 | |
| 3489 | |
| 3490 | /*************************************************************************/ |
| 3491 | /* */ |
| 3492 | /* SDB[]: Set Delta Base */ |
| 3493 | /* Opcode range: 0x5E */ |
| 3494 | /* Stack: uint32 --> */ |
| 3495 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3496 | static void |
| 3497 | Ins_SDB( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3498 | { |
| 3499 | DO_SDB |
| 3500 | } |
| 3501 | |
| 3502 | |
| 3503 | /*************************************************************************/ |
| 3504 | /* */ |
| 3505 | /* SDS[]: Set Delta Shift */ |
| 3506 | /* Opcode range: 0x5F */ |
| 3507 | /* Stack: uint32 --> */ |
| 3508 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3509 | static void |
| 3510 | Ins_SDS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3511 | { |
| 3512 | DO_SDS |
| 3513 | } |
| 3514 | |
| 3515 | |
| 3516 | /*************************************************************************/ |
| 3517 | /* */ |
| 3518 | /* MPPEM[]: Measure Pixel Per EM */ |
| 3519 | /* Opcode range: 0x4B */ |
| 3520 | /* Stack: --> Euint16 */ |
| 3521 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3522 | static void |
| 3523 | Ins_MPPEM( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3524 | { |
| 3525 | DO_MPPEM |
| 3526 | } |
| 3527 | |
| 3528 | |
| 3529 | /*************************************************************************/ |
| 3530 | /* */ |
| 3531 | /* MPS[]: Measure Point Size */ |
| 3532 | /* Opcode range: 0x4C */ |
| 3533 | /* Stack: --> Euint16 */ |
| 3534 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3535 | static void |
| 3536 | Ins_MPS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3537 | { |
| 3538 | DO_MPS |
| 3539 | } |
| 3540 | |
| 3541 | |
| 3542 | /*************************************************************************/ |
| 3543 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 3544 | /* DUP[]: DUPlicate the top stack's element */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3545 | /* Opcode range: 0x20 */ |
| 3546 | /* Stack: StkElt --> StkElt StkElt */ |
| 3547 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3548 | static void |
| 3549 | Ins_DUP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3550 | { |
| 3551 | DO_DUP |
| 3552 | } |
| 3553 | |
| 3554 | |
| 3555 | /*************************************************************************/ |
| 3556 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 3557 | /* POP[]: POP the stack's top element */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3558 | /* Opcode range: 0x21 */ |
| 3559 | /* Stack: StkElt --> */ |
| 3560 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3561 | static void |
| 3562 | Ins_POP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3563 | { |
| 3564 | /* nothing to do */ |
| 3565 | } |
| 3566 | |
| 3567 | |
| 3568 | /*************************************************************************/ |
| 3569 | /* */ |
| 3570 | /* CLEAR[]: CLEAR the entire stack */ |
| 3571 | /* Opcode range: 0x22 */ |
| 3572 | /* Stack: StkElt... --> */ |
| 3573 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3574 | static void |
| 3575 | Ins_CLEAR( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3576 | { |
| 3577 | DO_CLEAR |
| 3578 | } |
| 3579 | |
| 3580 | |
| 3581 | /*************************************************************************/ |
| 3582 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 3583 | /* SWAP[]: SWAP the stack's top two elements */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3584 | /* Opcode range: 0x23 */ |
| 3585 | /* Stack: 2 * StkElt --> 2 * StkElt */ |
| 3586 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3587 | static void |
| 3588 | Ins_SWAP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3589 | { |
| 3590 | DO_SWAP |
| 3591 | } |
| 3592 | |
| 3593 | |
| 3594 | /*************************************************************************/ |
| 3595 | /* */ |
| 3596 | /* DEPTH[]: return the stack DEPTH */ |
| 3597 | /* Opcode range: 0x24 */ |
| 3598 | /* Stack: --> uint32 */ |
| 3599 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3600 | static void |
| 3601 | Ins_DEPTH( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3602 | { |
| 3603 | DO_DEPTH |
| 3604 | } |
| 3605 | |
| 3606 | |
| 3607 | /*************************************************************************/ |
| 3608 | /* */ |
| 3609 | /* CINDEX[]: Copy INDEXed element */ |
| 3610 | /* Opcode range: 0x25 */ |
| 3611 | /* Stack: int32 --> StkElt */ |
| 3612 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3613 | static void |
| 3614 | Ins_CINDEX( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3615 | { |
| 3616 | DO_CINDEX |
| 3617 | } |
| 3618 | |
| 3619 | |
| 3620 | /*************************************************************************/ |
| 3621 | /* */ |
| 3622 | /* EIF[]: End IF */ |
| 3623 | /* Opcode range: 0x59 */ |
| 3624 | /* Stack: --> */ |
| 3625 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3626 | static void |
| 3627 | Ins_EIF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3628 | { |
| 3629 | /* nothing to do */ |
| 3630 | } |
| 3631 | |
| 3632 | |
| 3633 | /*************************************************************************/ |
| 3634 | /* */ |
| 3635 | /* JROT[]: Jump Relative On True */ |
| 3636 | /* Opcode range: 0x78 */ |
| 3637 | /* Stack: StkElt int32 --> */ |
| 3638 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3639 | static void |
| 3640 | Ins_JROT( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3641 | { |
| 3642 | DO_JROT |
| 3643 | } |
| 3644 | |
| 3645 | |
| 3646 | /*************************************************************************/ |
| 3647 | /* */ |
| 3648 | /* JMPR[]: JuMP Relative */ |
| 3649 | /* Opcode range: 0x1C */ |
| 3650 | /* Stack: int32 --> */ |
| 3651 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3652 | static void |
| 3653 | Ins_JMPR( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3654 | { |
| 3655 | DO_JMPR |
| 3656 | } |
| 3657 | |
| 3658 | |
| 3659 | /*************************************************************************/ |
| 3660 | /* */ |
| 3661 | /* JROF[]: Jump Relative On False */ |
| 3662 | /* Opcode range: 0x79 */ |
| 3663 | /* Stack: StkElt int32 --> */ |
| 3664 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3665 | static void |
| 3666 | Ins_JROF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3667 | { |
| 3668 | DO_JROF |
| 3669 | } |
| 3670 | |
| 3671 | |
| 3672 | /*************************************************************************/ |
| 3673 | /* */ |
| 3674 | /* LT[]: Less Than */ |
| 3675 | /* Opcode range: 0x50 */ |
| 3676 | /* Stack: int32? int32? --> bool */ |
| 3677 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3678 | static void |
| 3679 | Ins_LT( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3680 | { |
| 3681 | DO_LT |
| 3682 | } |
| 3683 | |
| 3684 | |
| 3685 | /*************************************************************************/ |
| 3686 | /* */ |
| 3687 | /* LTEQ[]: Less Than or EQual */ |
| 3688 | /* Opcode range: 0x51 */ |
| 3689 | /* Stack: int32? int32? --> bool */ |
| 3690 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3691 | static void |
| 3692 | Ins_LTEQ( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3693 | { |
| 3694 | DO_LTEQ |
| 3695 | } |
| 3696 | |
| 3697 | |
| 3698 | /*************************************************************************/ |
| 3699 | /* */ |
| 3700 | /* GT[]: Greater Than */ |
| 3701 | /* Opcode range: 0x52 */ |
| 3702 | /* Stack: int32? int32? --> bool */ |
| 3703 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3704 | static void |
| 3705 | Ins_GT( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3706 | { |
| 3707 | DO_GT |
| 3708 | } |
| 3709 | |
| 3710 | |
| 3711 | /*************************************************************************/ |
| 3712 | /* */ |
| 3713 | /* GTEQ[]: Greater Than or EQual */ |
| 3714 | /* Opcode range: 0x53 */ |
| 3715 | /* Stack: int32? int32? --> bool */ |
| 3716 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3717 | static void |
| 3718 | Ins_GTEQ( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3719 | { |
| 3720 | DO_GTEQ |
| 3721 | } |
| 3722 | |
| 3723 | |
| 3724 | /*************************************************************************/ |
| 3725 | /* */ |
| 3726 | /* EQ[]: EQual */ |
| 3727 | /* Opcode range: 0x54 */ |
| 3728 | /* Stack: StkElt StkElt --> bool */ |
| 3729 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3730 | static void |
| 3731 | Ins_EQ( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3732 | { |
| 3733 | DO_EQ |
| 3734 | } |
| 3735 | |
| 3736 | |
| 3737 | /*************************************************************************/ |
| 3738 | /* */ |
| 3739 | /* NEQ[]: Not EQual */ |
| 3740 | /* Opcode range: 0x55 */ |
| 3741 | /* Stack: StkElt StkElt --> bool */ |
| 3742 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3743 | static void |
| 3744 | Ins_NEQ( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3745 | { |
| 3746 | DO_NEQ |
| 3747 | } |
| 3748 | |
| 3749 | |
| 3750 | /*************************************************************************/ |
| 3751 | /* */ |
| 3752 | /* ODD[]: Is ODD */ |
| 3753 | /* Opcode range: 0x56 */ |
| 3754 | /* Stack: f26.6 --> bool */ |
| 3755 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3756 | static void |
| 3757 | Ins_ODD( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3758 | { |
| 3759 | DO_ODD |
| 3760 | } |
| 3761 | |
| 3762 | |
| 3763 | /*************************************************************************/ |
| 3764 | /* */ |
| 3765 | /* EVEN[]: Is EVEN */ |
| 3766 | /* Opcode range: 0x57 */ |
| 3767 | /* Stack: f26.6 --> bool */ |
| 3768 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3769 | static void |
| 3770 | Ins_EVEN( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3771 | { |
| 3772 | DO_EVEN |
| 3773 | } |
| 3774 | |
| 3775 | |
| 3776 | /*************************************************************************/ |
| 3777 | /* */ |
| 3778 | /* AND[]: logical AND */ |
| 3779 | /* Opcode range: 0x5A */ |
| 3780 | /* Stack: uint32 uint32 --> uint32 */ |
| 3781 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3782 | static void |
| 3783 | Ins_AND( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3784 | { |
| 3785 | DO_AND |
| 3786 | } |
| 3787 | |
| 3788 | |
| 3789 | /*************************************************************************/ |
| 3790 | /* */ |
| 3791 | /* OR[]: logical OR */ |
| 3792 | /* Opcode range: 0x5B */ |
| 3793 | /* Stack: uint32 uint32 --> uint32 */ |
| 3794 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3795 | static void |
| 3796 | Ins_OR( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3797 | { |
| 3798 | DO_OR |
| 3799 | } |
| 3800 | |
| 3801 | |
| 3802 | /*************************************************************************/ |
| 3803 | /* */ |
| 3804 | /* NOT[]: logical NOT */ |
| 3805 | /* Opcode range: 0x5C */ |
| 3806 | /* Stack: StkElt --> uint32 */ |
| 3807 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3808 | static void |
| 3809 | Ins_NOT( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3810 | { |
| 3811 | DO_NOT |
| 3812 | } |
| 3813 | |
| 3814 | |
| 3815 | /*************************************************************************/ |
| 3816 | /* */ |
| 3817 | /* ADD[]: ADD */ |
| 3818 | /* Opcode range: 0x60 */ |
| 3819 | /* Stack: f26.6 f26.6 --> f26.6 */ |
| 3820 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3821 | static void |
| 3822 | Ins_ADD( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3823 | { |
| 3824 | DO_ADD |
| 3825 | } |
| 3826 | |
| 3827 | |
| 3828 | /*************************************************************************/ |
| 3829 | /* */ |
| 3830 | /* SUB[]: SUBtract */ |
| 3831 | /* Opcode range: 0x61 */ |
| 3832 | /* Stack: f26.6 f26.6 --> f26.6 */ |
| 3833 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3834 | static void |
| 3835 | Ins_SUB( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3836 | { |
| 3837 | DO_SUB |
| 3838 | } |
| 3839 | |
| 3840 | |
| 3841 | /*************************************************************************/ |
| 3842 | /* */ |
| 3843 | /* DIV[]: DIVide */ |
| 3844 | /* Opcode range: 0x62 */ |
| 3845 | /* Stack: f26.6 f26.6 --> f26.6 */ |
| 3846 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3847 | static void |
| 3848 | Ins_DIV( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3849 | { |
| 3850 | DO_DIV |
| 3851 | } |
| 3852 | |
| 3853 | |
| 3854 | /*************************************************************************/ |
| 3855 | /* */ |
| 3856 | /* MUL[]: MULtiply */ |
| 3857 | /* Opcode range: 0x63 */ |
| 3858 | /* Stack: f26.6 f26.6 --> f26.6 */ |
| 3859 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3860 | static void |
| 3861 | Ins_MUL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3862 | { |
| 3863 | DO_MUL |
| 3864 | } |
| 3865 | |
| 3866 | |
| 3867 | /*************************************************************************/ |
| 3868 | /* */ |
| 3869 | /* ABS[]: ABSolute value */ |
| 3870 | /* Opcode range: 0x64 */ |
| 3871 | /* Stack: f26.6 --> f26.6 */ |
| 3872 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3873 | static void |
| 3874 | Ins_ABS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3875 | { |
| 3876 | DO_ABS |
| 3877 | } |
| 3878 | |
| 3879 | |
| 3880 | /*************************************************************************/ |
| 3881 | /* */ |
| 3882 | /* NEG[]: NEGate */ |
| 3883 | /* Opcode range: 0x65 */ |
| 3884 | /* Stack: f26.6 --> f26.6 */ |
| 3885 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3886 | static void |
| 3887 | Ins_NEG( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3888 | { |
| 3889 | DO_NEG |
| 3890 | } |
| 3891 | |
| 3892 | |
| 3893 | /*************************************************************************/ |
| 3894 | /* */ |
| 3895 | /* FLOOR[]: FLOOR */ |
| 3896 | /* Opcode range: 0x66 */ |
| 3897 | /* Stack: f26.6 --> f26.6 */ |
| 3898 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3899 | static void |
| 3900 | Ins_FLOOR( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3901 | { |
| 3902 | DO_FLOOR |
| 3903 | } |
| 3904 | |
| 3905 | |
| 3906 | /*************************************************************************/ |
| 3907 | /* */ |
| 3908 | /* CEILING[]: CEILING */ |
| 3909 | /* Opcode range: 0x67 */ |
| 3910 | /* Stack: f26.6 --> f26.6 */ |
| 3911 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3912 | static void |
| 3913 | Ins_CEILING( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3914 | { |
| 3915 | DO_CEILING |
| 3916 | } |
| 3917 | |
| 3918 | |
| 3919 | /*************************************************************************/ |
| 3920 | /* */ |
| 3921 | /* RS[]: Read Store */ |
| 3922 | /* Opcode range: 0x43 */ |
| 3923 | /* Stack: uint32 --> uint32 */ |
| 3924 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3925 | static void |
| 3926 | Ins_RS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3927 | { |
| 3928 | DO_RS |
| 3929 | } |
| 3930 | |
| 3931 | |
| 3932 | /*************************************************************************/ |
| 3933 | /* */ |
| 3934 | /* WS[]: Write Store */ |
| 3935 | /* Opcode range: 0x42 */ |
| 3936 | /* Stack: uint32 uint32 --> */ |
| 3937 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3938 | static void |
| 3939 | Ins_WS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3940 | { |
| 3941 | DO_WS |
| 3942 | } |
| 3943 | |
| 3944 | |
| 3945 | /*************************************************************************/ |
| 3946 | /* */ |
| 3947 | /* WCVTP[]: Write CVT in Pixel units */ |
| 3948 | /* Opcode range: 0x44 */ |
| 3949 | /* Stack: f26.6 uint32 --> */ |
| 3950 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3951 | static void |
| 3952 | Ins_WCVTP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3953 | { |
| 3954 | DO_WCVTP |
| 3955 | } |
| 3956 | |
| 3957 | |
| 3958 | /*************************************************************************/ |
| 3959 | /* */ |
| 3960 | /* WCVTF[]: Write CVT in Funits */ |
| 3961 | /* Opcode range: 0x70 */ |
| 3962 | /* Stack: uint32 uint32 --> */ |
| 3963 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3964 | static void |
| 3965 | Ins_WCVTF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3966 | { |
| 3967 | DO_WCVTF |
| 3968 | } |
| 3969 | |
| 3970 | |
| 3971 | /*************************************************************************/ |
| 3972 | /* */ |
| 3973 | /* RCVT[]: Read CVT */ |
| 3974 | /* Opcode range: 0x45 */ |
| 3975 | /* Stack: uint32 --> f26.6 */ |
| 3976 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3977 | static void |
| 3978 | Ins_RCVT( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3979 | { |
| 3980 | DO_RCVT |
| 3981 | } |
| 3982 | |
| 3983 | |
| 3984 | /*************************************************************************/ |
| 3985 | /* */ |
| 3986 | /* AA[]: Adjust Angle */ |
| 3987 | /* Opcode range: 0x7F */ |
| 3988 | /* Stack: uint32 --> */ |
| 3989 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 3990 | static void |
| 3991 | Ins_AA( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3992 | { |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 3993 | /* intentionally no longer supported */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 3994 | } |
| 3995 | |
| 3996 | |
| 3997 | /*************************************************************************/ |
| 3998 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 3999 | /* DEBUG[]: DEBUG. Unsupported. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4000 | /* Opcode range: 0x4F */ |
| 4001 | /* Stack: uint32 --> */ |
| 4002 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4003 | /* Note: The original instruction pops a value from the stack. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4004 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4005 | static void |
| 4006 | Ins_DEBUG( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4007 | { |
| 4008 | DO_DEBUG |
| 4009 | } |
| 4010 | |
| 4011 | |
| 4012 | /*************************************************************************/ |
| 4013 | /* */ |
| 4014 | /* ROUND[ab]: ROUND value */ |
| 4015 | /* Opcode range: 0x68-0x6B */ |
| 4016 | /* Stack: f26.6 --> f26.6 */ |
| 4017 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4018 | static void |
| 4019 | Ins_ROUND( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4020 | { |
| 4021 | DO_ROUND |
| 4022 | } |
| 4023 | |
| 4024 | |
| 4025 | /*************************************************************************/ |
| 4026 | /* */ |
| 4027 | /* NROUND[ab]: No ROUNDing of value */ |
| 4028 | /* Opcode range: 0x6C-0x6F */ |
| 4029 | /* Stack: f26.6 --> f26.6 */ |
| 4030 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4031 | static void |
| 4032 | Ins_NROUND( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4033 | { |
| 4034 | DO_NROUND |
| 4035 | } |
| 4036 | |
| 4037 | |
| 4038 | /*************************************************************************/ |
| 4039 | /* */ |
| 4040 | /* MAX[]: MAXimum */ |
| 4041 | /* Opcode range: 0x68 */ |
| 4042 | /* Stack: int32? int32? --> int32 */ |
| 4043 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4044 | static void |
| 4045 | Ins_MAX( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4046 | { |
| 4047 | DO_MAX |
| 4048 | } |
| 4049 | |
| 4050 | |
| 4051 | /*************************************************************************/ |
| 4052 | /* */ |
| 4053 | /* MIN[]: MINimum */ |
| 4054 | /* Opcode range: 0x69 */ |
| 4055 | /* Stack: int32? int32? --> int32 */ |
| 4056 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4057 | static void |
| 4058 | Ins_MIN( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4059 | { |
| 4060 | DO_MIN |
| 4061 | } |
| 4062 | |
| 4063 | |
| 4064 | #endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */ |
| 4065 | |
| 4066 | |
| 4067 | /*************************************************************************/ |
| 4068 | /* */ |
| 4069 | /* The following functions are called as is within the switch statement. */ |
| 4070 | /* */ |
| 4071 | /*************************************************************************/ |
| 4072 | |
| 4073 | |
| 4074 | /*************************************************************************/ |
| 4075 | /* */ |
| 4076 | /* MINDEX[]: Move INDEXed element */ |
| 4077 | /* Opcode range: 0x26 */ |
| 4078 | /* Stack: int32? --> StkElt */ |
| 4079 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4080 | static void |
| 4081 | Ins_MINDEX( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4082 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4083 | FT_Long L, K; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4084 | |
| 4085 | |
| 4086 | L = args[0]; |
| 4087 | |
| 4088 | if ( L <= 0 || L > CUR.args ) |
| 4089 | { |
| 4090 | CUR.error = TT_Err_Invalid_Reference; |
| 4091 | return; |
| 4092 | } |
| 4093 | |
| 4094 | K = CUR.stack[CUR.args - L]; |
| 4095 | |
David Turner | 4632fcc | 2004-01-15 19:07:44 +0000 | [diff] [blame] | 4096 | FT_ARRAY_MOVE( &CUR.stack[CUR.args - L ], |
| 4097 | &CUR.stack[CUR.args - L + 1], |
| 4098 | ( L - 1 ) ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4099 | |
| 4100 | CUR.stack[CUR.args - 1] = K; |
| 4101 | } |
| 4102 | |
| 4103 | |
| 4104 | /*************************************************************************/ |
| 4105 | /* */ |
| 4106 | /* ROLL[]: ROLL top three elements */ |
| 4107 | /* Opcode range: 0x8A */ |
| 4108 | /* Stack: 3 * StkElt --> 3 * StkElt */ |
| 4109 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4110 | static void |
| 4111 | Ins_ROLL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4112 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4113 | FT_Long A, B, C; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4114 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 4115 | FT_UNUSED_EXEC; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4116 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4117 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4118 | A = args[2]; |
| 4119 | B = args[1]; |
| 4120 | C = args[0]; |
| 4121 | |
| 4122 | args[2] = C; |
| 4123 | args[1] = A; |
| 4124 | args[0] = B; |
| 4125 | } |
| 4126 | |
| 4127 | |
| 4128 | /*************************************************************************/ |
| 4129 | /* */ |
| 4130 | /* MANAGING THE FLOW OF CONTROL */ |
| 4131 | /* */ |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 4132 | /* Instructions appear in the specification's order. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4133 | /* */ |
| 4134 | /*************************************************************************/ |
| 4135 | |
| 4136 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4137 | static FT_Bool |
| 4138 | SkipCode( EXEC_OP ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4139 | { |
| 4140 | CUR.IP += CUR.length; |
| 4141 | |
| 4142 | if ( CUR.IP < CUR.codeSize ) |
| 4143 | { |
| 4144 | CUR.opcode = CUR.code[CUR.IP]; |
| 4145 | |
| 4146 | CUR.length = opcode_length[CUR.opcode]; |
| 4147 | if ( CUR.length < 0 ) |
| 4148 | { |
| 4149 | if ( CUR.IP + 1 > CUR.codeSize ) |
| 4150 | goto Fail_Overflow; |
Werner Lemberg | 33febc0 | 2004-10-09 07:07:43 +0000 | [diff] [blame] | 4151 | CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4152 | } |
| 4153 | |
| 4154 | if ( CUR.IP + CUR.length <= CUR.codeSize ) |
| 4155 | return SUCCESS; |
| 4156 | } |
| 4157 | |
| 4158 | Fail_Overflow: |
| 4159 | CUR.error = TT_Err_Code_Overflow; |
| 4160 | return FAILURE; |
| 4161 | } |
| 4162 | |
| 4163 | |
| 4164 | /*************************************************************************/ |
| 4165 | /* */ |
| 4166 | /* IF[]: IF test */ |
| 4167 | /* Opcode range: 0x58 */ |
| 4168 | /* Stack: StkElt --> */ |
| 4169 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4170 | static void |
| 4171 | Ins_IF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4172 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4173 | FT_Int nIfs; |
| 4174 | FT_Bool Out; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4175 | |
| 4176 | |
| 4177 | if ( args[0] != 0 ) |
| 4178 | return; |
| 4179 | |
| 4180 | nIfs = 1; |
| 4181 | Out = 0; |
| 4182 | |
| 4183 | do |
| 4184 | { |
| 4185 | if ( SKIP_Code() == FAILURE ) |
| 4186 | return; |
| 4187 | |
| 4188 | switch ( CUR.opcode ) |
| 4189 | { |
| 4190 | case 0x58: /* IF */ |
| 4191 | nIfs++; |
| 4192 | break; |
| 4193 | |
| 4194 | case 0x1B: /* ELSE */ |
David Turner | 3b7049f | 2001-07-07 16:12:14 +0000 | [diff] [blame] | 4195 | Out = FT_BOOL( nIfs == 1 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4196 | break; |
| 4197 | |
| 4198 | case 0x59: /* EIF */ |
| 4199 | nIfs--; |
David Turner | 3b7049f | 2001-07-07 16:12:14 +0000 | [diff] [blame] | 4200 | Out = FT_BOOL( nIfs == 0 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4201 | break; |
| 4202 | } |
| 4203 | } while ( Out == 0 ); |
| 4204 | } |
| 4205 | |
| 4206 | |
| 4207 | /*************************************************************************/ |
| 4208 | /* */ |
| 4209 | /* ELSE[]: ELSE */ |
| 4210 | /* Opcode range: 0x1B */ |
| 4211 | /* Stack: --> */ |
| 4212 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4213 | static void |
| 4214 | Ins_ELSE( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4215 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4216 | FT_Int nIfs; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4217 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 4218 | FT_UNUSED_ARG; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4219 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4220 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4221 | nIfs = 1; |
| 4222 | |
| 4223 | do |
| 4224 | { |
| 4225 | if ( SKIP_Code() == FAILURE ) |
| 4226 | return; |
| 4227 | |
| 4228 | switch ( CUR.opcode ) |
| 4229 | { |
| 4230 | case 0x58: /* IF */ |
| 4231 | nIfs++; |
| 4232 | break; |
| 4233 | |
| 4234 | case 0x59: /* EIF */ |
| 4235 | nIfs--; |
| 4236 | break; |
| 4237 | } |
| 4238 | } while ( nIfs != 0 ); |
| 4239 | } |
| 4240 | |
| 4241 | |
| 4242 | /*************************************************************************/ |
| 4243 | /* */ |
| 4244 | /* DEFINING AND USING FUNCTIONS AND INSTRUCTIONS */ |
| 4245 | /* */ |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 4246 | /* Instructions appear in the specification's order. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4247 | /* */ |
| 4248 | /*************************************************************************/ |
| 4249 | |
| 4250 | |
| 4251 | /*************************************************************************/ |
| 4252 | /* */ |
| 4253 | /* FDEF[]: Function DEFinition */ |
| 4254 | /* Opcode range: 0x2C */ |
| 4255 | /* Stack: uint32 --> */ |
| 4256 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4257 | static void |
| 4258 | Ins_FDEF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4259 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4260 | FT_ULong n; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4261 | TT_DefRecord* rec; |
| 4262 | TT_DefRecord* limit; |
| 4263 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4264 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4265 | /* some font programs are broken enough to redefine functions! */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4266 | /* We will then parse the current table. */ |
| 4267 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4268 | rec = CUR.FDefs; |
| 4269 | limit = rec + CUR.numFDefs; |
| 4270 | n = args[0]; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4271 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4272 | for ( ; rec < limit; rec++ ) |
| 4273 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4274 | if ( rec->opc == n ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4275 | break; |
| 4276 | } |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4277 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4278 | if ( rec == limit ) |
| 4279 | { |
| 4280 | /* check that there is enough room for new functions */ |
| 4281 | if ( CUR.numFDefs >= CUR.maxFDefs ) |
| 4282 | { |
| 4283 | CUR.error = TT_Err_Too_Many_Function_Defs; |
| 4284 | return; |
| 4285 | } |
| 4286 | CUR.numFDefs++; |
| 4287 | } |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4288 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4289 | rec->range = CUR.curRange; |
| 4290 | rec->opc = n; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4291 | rec->start = CUR.IP + 1; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4292 | rec->active = TRUE; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4293 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4294 | if ( n > CUR.maxFunc ) |
| 4295 | CUR.maxFunc = n; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4296 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4297 | /* Now skip the whole function definition. */ |
| 4298 | /* We don't allow nested IDEFS & FDEFs. */ |
| 4299 | |
| 4300 | while ( SKIP_Code() == SUCCESS ) |
| 4301 | { |
| 4302 | switch ( CUR.opcode ) |
| 4303 | { |
| 4304 | case 0x89: /* IDEF */ |
| 4305 | case 0x2C: /* FDEF */ |
| 4306 | CUR.error = TT_Err_Nested_DEFS; |
| 4307 | return; |
| 4308 | |
| 4309 | case 0x2D: /* ENDF */ |
| 4310 | return; |
| 4311 | } |
| 4312 | } |
| 4313 | } |
| 4314 | |
| 4315 | |
| 4316 | /*************************************************************************/ |
| 4317 | /* */ |
| 4318 | /* ENDF[]: END Function definition */ |
| 4319 | /* Opcode range: 0x2D */ |
| 4320 | /* Stack: --> */ |
| 4321 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4322 | static void |
| 4323 | Ins_ENDF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4324 | { |
| 4325 | TT_CallRec* pRec; |
| 4326 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 4327 | FT_UNUSED_ARG; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4328 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4329 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4330 | if ( CUR.callTop <= 0 ) /* We encountered an ENDF without a call */ |
| 4331 | { |
| 4332 | CUR.error = TT_Err_ENDF_In_Exec_Stream; |
| 4333 | return; |
| 4334 | } |
| 4335 | |
| 4336 | CUR.callTop--; |
| 4337 | |
| 4338 | pRec = &CUR.callStack[CUR.callTop]; |
| 4339 | |
| 4340 | pRec->Cur_Count--; |
| 4341 | |
| 4342 | CUR.step_ins = FALSE; |
| 4343 | |
| 4344 | if ( pRec->Cur_Count > 0 ) |
| 4345 | { |
| 4346 | CUR.callTop++; |
| 4347 | CUR.IP = pRec->Cur_Restart; |
| 4348 | } |
| 4349 | else |
| 4350 | /* Loop through the current function */ |
| 4351 | INS_Goto_CodeRange( pRec->Caller_Range, |
| 4352 | pRec->Caller_IP ); |
| 4353 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4354 | /* Exit the current call frame. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4355 | |
Werner Lemberg | 6e87ed9 | 2007-01-26 22:18:56 +0000 | [diff] [blame] | 4356 | /* NOTE: If the last instruction of a program is a */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4357 | /* CALL or LOOPCALL, the return address is */ |
| 4358 | /* always out of the code range. This is a */ |
| 4359 | /* valid address, and it is why we do not test */ |
| 4360 | /* the result of Ins_Goto_CodeRange() here! */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4361 | } |
| 4362 | |
| 4363 | |
| 4364 | /*************************************************************************/ |
| 4365 | /* */ |
| 4366 | /* CALL[]: CALL function */ |
| 4367 | /* Opcode range: 0x2B */ |
| 4368 | /* Stack: uint32? --> */ |
| 4369 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4370 | static void |
| 4371 | Ins_CALL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4372 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4373 | FT_ULong F; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4374 | TT_CallRec* pCrec; |
| 4375 | TT_DefRecord* def; |
| 4376 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4377 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4378 | /* first of all, check the index */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4379 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4380 | F = args[0]; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4381 | if ( BOUNDS( F, CUR.maxFunc + 1 ) ) |
| 4382 | goto Fail; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4383 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4384 | /* Except for some old Apple fonts, all functions in a TrueType */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4385 | /* font are defined in increasing order, starting from 0. This */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4386 | /* means that we normally have */ |
| 4387 | /* */ |
| 4388 | /* CUR.maxFunc+1 == CUR.numFDefs */ |
| 4389 | /* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */ |
| 4390 | /* */ |
| 4391 | /* If this isn't true, we need to look up the function table. */ |
| 4392 | |
| 4393 | def = CUR.FDefs + F; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4394 | if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4395 | { |
| 4396 | /* look up the FDefs table */ |
| 4397 | TT_DefRecord* limit; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4398 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4399 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4400 | def = CUR.FDefs; |
| 4401 | limit = def + CUR.numFDefs; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4402 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4403 | while ( def < limit && def->opc != F ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4404 | def++; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4405 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4406 | if ( def == limit ) |
| 4407 | goto Fail; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4408 | } |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4409 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4410 | /* check that the function is active */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4411 | if ( !def->active ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4412 | goto Fail; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4413 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4414 | /* check the call stack */ |
| 4415 | if ( CUR.callTop >= CUR.callSize ) |
| 4416 | { |
| 4417 | CUR.error = TT_Err_Stack_Overflow; |
| 4418 | return; |
| 4419 | } |
| 4420 | |
| 4421 | pCrec = CUR.callStack + CUR.callTop; |
| 4422 | |
| 4423 | pCrec->Caller_Range = CUR.curRange; |
| 4424 | pCrec->Caller_IP = CUR.IP + 1; |
| 4425 | pCrec->Cur_Count = 1; |
| 4426 | pCrec->Cur_Restart = def->start; |
| 4427 | |
| 4428 | CUR.callTop++; |
| 4429 | |
| 4430 | INS_Goto_CodeRange( def->range, |
| 4431 | def->start ); |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4432 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4433 | CUR.step_ins = FALSE; |
| 4434 | return; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4435 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4436 | Fail: |
| 4437 | CUR.error = TT_Err_Invalid_Reference; |
| 4438 | } |
| 4439 | |
| 4440 | |
| 4441 | /*************************************************************************/ |
| 4442 | /* */ |
| 4443 | /* LOOPCALL[]: LOOP and CALL function */ |
| 4444 | /* Opcode range: 0x2A */ |
| 4445 | /* Stack: uint32? Eint16? --> */ |
| 4446 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4447 | static void |
| 4448 | Ins_LOOPCALL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4449 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4450 | FT_ULong F; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4451 | TT_CallRec* pCrec; |
| 4452 | TT_DefRecord* def; |
| 4453 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4454 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4455 | /* first of all, check the index */ |
| 4456 | F = args[1]; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4457 | if ( BOUNDS( F, CUR.maxFunc + 1 ) ) |
| 4458 | goto Fail; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4459 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4460 | /* Except for some old Apple fonts, all functions in a TrueType */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4461 | /* font are defined in increasing order, starting from 0. This */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4462 | /* means that we normally have */ |
| 4463 | /* */ |
| 4464 | /* CUR.maxFunc+1 == CUR.numFDefs */ |
| 4465 | /* CUR.FDefs[n].opc == n for n in 0..CUR.maxFunc */ |
| 4466 | /* */ |
| 4467 | /* If this isn't true, we need to look up the function table. */ |
| 4468 | |
| 4469 | def = CUR.FDefs + F; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4470 | if ( CUR.maxFunc + 1 != CUR.numFDefs || def->opc != F ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4471 | { |
| 4472 | /* look up the FDefs table */ |
| 4473 | TT_DefRecord* limit; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4474 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4475 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4476 | def = CUR.FDefs; |
| 4477 | limit = def + CUR.numFDefs; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4478 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4479 | while ( def < limit && def->opc != F ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4480 | def++; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4481 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4482 | if ( def == limit ) |
| 4483 | goto Fail; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4484 | } |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4485 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4486 | /* check that the function is active */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4487 | if ( !def->active ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4488 | goto Fail; |
| 4489 | |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4490 | /* check stack */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4491 | if ( CUR.callTop >= CUR.callSize ) |
| 4492 | { |
| 4493 | CUR.error = TT_Err_Stack_Overflow; |
| 4494 | return; |
| 4495 | } |
| 4496 | |
| 4497 | if ( args[0] > 0 ) |
| 4498 | { |
| 4499 | pCrec = CUR.callStack + CUR.callTop; |
| 4500 | |
| 4501 | pCrec->Caller_Range = CUR.curRange; |
| 4502 | pCrec->Caller_IP = CUR.IP + 1; |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4503 | pCrec->Cur_Count = (FT_Int)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4504 | pCrec->Cur_Restart = def->start; |
| 4505 | |
| 4506 | CUR.callTop++; |
| 4507 | |
| 4508 | INS_Goto_CodeRange( def->range, def->start ); |
| 4509 | |
| 4510 | CUR.step_ins = FALSE; |
| 4511 | } |
| 4512 | return; |
| 4513 | |
| 4514 | Fail: |
| 4515 | CUR.error = TT_Err_Invalid_Reference; |
| 4516 | } |
| 4517 | |
| 4518 | |
| 4519 | /*************************************************************************/ |
| 4520 | /* */ |
| 4521 | /* IDEF[]: Instruction DEFinition */ |
| 4522 | /* Opcode range: 0x89 */ |
| 4523 | /* Stack: Eint8 --> */ |
| 4524 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4525 | static void |
| 4526 | Ins_IDEF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4527 | { |
| 4528 | TT_DefRecord* def; |
| 4529 | TT_DefRecord* limit; |
| 4530 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4531 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4532 | /* First of all, look for the same function in our table */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4533 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4534 | def = CUR.IDefs; |
| 4535 | limit = def + CUR.numIDefs; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4536 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4537 | for ( ; def < limit; def++ ) |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4538 | if ( def->opc == (FT_ULong)args[0] ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4539 | break; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4540 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4541 | if ( def == limit ) |
| 4542 | { |
| 4543 | /* check that there is enough room for a new instruction */ |
| 4544 | if ( CUR.numIDefs >= CUR.maxIDefs ) |
| 4545 | { |
| 4546 | CUR.error = TT_Err_Too_Many_Instruction_Defs; |
| 4547 | return; |
| 4548 | } |
| 4549 | CUR.numIDefs++; |
| 4550 | } |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4551 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4552 | def->opc = args[0]; |
| 4553 | def->start = CUR.IP+1; |
| 4554 | def->range = CUR.curRange; |
| 4555 | def->active = TRUE; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4556 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4557 | if ( (FT_ULong)args[0] > CUR.maxIns ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4558 | CUR.maxIns = args[0]; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 4559 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4560 | /* Now skip the whole function definition. */ |
| 4561 | /* We don't allow nested IDEFs & FDEFs. */ |
| 4562 | |
| 4563 | while ( SKIP_Code() == SUCCESS ) |
| 4564 | { |
| 4565 | switch ( CUR.opcode ) |
| 4566 | { |
| 4567 | case 0x89: /* IDEF */ |
| 4568 | case 0x2C: /* FDEF */ |
| 4569 | CUR.error = TT_Err_Nested_DEFS; |
| 4570 | return; |
| 4571 | case 0x2D: /* ENDF */ |
| 4572 | return; |
| 4573 | } |
| 4574 | } |
| 4575 | } |
| 4576 | |
| 4577 | |
| 4578 | /*************************************************************************/ |
| 4579 | /* */ |
| 4580 | /* PUSHING DATA ONTO THE INTERPRETER STACK */ |
| 4581 | /* */ |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 4582 | /* Instructions appear in the specification's order. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4583 | /* */ |
| 4584 | /*************************************************************************/ |
| 4585 | |
| 4586 | |
| 4587 | /*************************************************************************/ |
| 4588 | /* */ |
| 4589 | /* NPUSHB[]: PUSH N Bytes */ |
| 4590 | /* Opcode range: 0x40 */ |
| 4591 | /* Stack: --> uint32... */ |
| 4592 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4593 | static void |
| 4594 | Ins_NPUSHB( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4595 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4596 | FT_UShort L, K; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4597 | |
| 4598 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4599 | L = (FT_UShort)CUR.code[CUR.IP + 1]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4600 | |
| 4601 | if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) |
| 4602 | { |
| 4603 | CUR.error = TT_Err_Stack_Overflow; |
| 4604 | return; |
| 4605 | } |
| 4606 | |
| 4607 | for ( K = 1; K <= L; K++ ) |
| 4608 | args[K - 1] = CUR.code[CUR.IP + K + 1]; |
| 4609 | |
| 4610 | CUR.new_top += L; |
| 4611 | } |
| 4612 | |
| 4613 | |
| 4614 | /*************************************************************************/ |
| 4615 | /* */ |
| 4616 | /* NPUSHW[]: PUSH N Words */ |
| 4617 | /* Opcode range: 0x41 */ |
| 4618 | /* Stack: --> int32... */ |
| 4619 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4620 | static void |
| 4621 | Ins_NPUSHW( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4622 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4623 | FT_UShort L, K; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4624 | |
| 4625 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4626 | L = (FT_UShort)CUR.code[CUR.IP + 1]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4627 | |
| 4628 | if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) |
| 4629 | { |
| 4630 | CUR.error = TT_Err_Stack_Overflow; |
| 4631 | return; |
| 4632 | } |
| 4633 | |
| 4634 | CUR.IP += 2; |
| 4635 | |
| 4636 | for ( K = 0; K < L; K++ ) |
| 4637 | args[K] = GET_ShortIns(); |
| 4638 | |
| 4639 | CUR.step_ins = FALSE; |
| 4640 | CUR.new_top += L; |
| 4641 | } |
| 4642 | |
| 4643 | |
| 4644 | /*************************************************************************/ |
| 4645 | /* */ |
| 4646 | /* PUSHB[abc]: PUSH Bytes */ |
| 4647 | /* Opcode range: 0xB0-0xB7 */ |
| 4648 | /* Stack: --> uint32... */ |
| 4649 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4650 | static void |
| 4651 | Ins_PUSHB( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4652 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4653 | FT_UShort L, K; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4654 | |
| 4655 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 4656 | L = (FT_UShort)( CUR.opcode - 0xB0 + 1 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4657 | |
| 4658 | if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) |
| 4659 | { |
| 4660 | CUR.error = TT_Err_Stack_Overflow; |
| 4661 | return; |
| 4662 | } |
| 4663 | |
| 4664 | for ( K = 1; K <= L; K++ ) |
| 4665 | args[K - 1] = CUR.code[CUR.IP + K]; |
| 4666 | } |
| 4667 | |
| 4668 | |
| 4669 | /*************************************************************************/ |
| 4670 | /* */ |
| 4671 | /* PUSHW[abc]: PUSH Words */ |
| 4672 | /* Opcode range: 0xB8-0xBF */ |
| 4673 | /* Stack: --> int32... */ |
| 4674 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4675 | static void |
| 4676 | Ins_PUSHW( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4677 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4678 | FT_UShort L, K; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4679 | |
| 4680 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 4681 | L = (FT_UShort)( CUR.opcode - 0xB8 + 1 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4682 | |
| 4683 | if ( BOUNDS( L, CUR.stackSize + 1 - CUR.top ) ) |
| 4684 | { |
| 4685 | CUR.error = TT_Err_Stack_Overflow; |
| 4686 | return; |
| 4687 | } |
| 4688 | |
| 4689 | CUR.IP++; |
| 4690 | |
| 4691 | for ( K = 0; K < L; K++ ) |
| 4692 | args[K] = GET_ShortIns(); |
| 4693 | |
| 4694 | CUR.step_ins = FALSE; |
| 4695 | } |
| 4696 | |
| 4697 | |
| 4698 | /*************************************************************************/ |
| 4699 | /* */ |
| 4700 | /* MANAGING THE GRAPHICS STATE */ |
| 4701 | /* */ |
| 4702 | /* Instructions appear in the specs' order. */ |
| 4703 | /* */ |
| 4704 | /*************************************************************************/ |
| 4705 | |
| 4706 | |
| 4707 | /*************************************************************************/ |
| 4708 | /* */ |
| 4709 | /* GC[a]: Get Coordinate projected onto */ |
| 4710 | /* Opcode range: 0x46-0x47 */ |
| 4711 | /* Stack: uint32 --> f26.6 */ |
| 4712 | /* */ |
| 4713 | /* BULLSHIT: Measures from the original glyph must be taken along the */ |
| 4714 | /* dual projection vector! */ |
| 4715 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4716 | static void |
| 4717 | Ins_GC( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4718 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4719 | FT_ULong L; |
| 4720 | FT_F26Dot6 R; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4721 | |
| 4722 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4723 | L = (FT_ULong)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4724 | |
| 4725 | if ( BOUNDS( L, CUR.zp2.n_points ) ) |
| 4726 | { |
| 4727 | if ( CUR.pedantic_hinting ) |
| 4728 | { |
| 4729 | CUR.error = TT_Err_Invalid_Reference; |
| 4730 | return; |
| 4731 | } |
| 4732 | else |
| 4733 | R = 0; |
| 4734 | } |
| 4735 | else |
| 4736 | { |
| 4737 | if ( CUR.opcode & 1 ) |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 4738 | R = CUR_fast_dualproj( &CUR.zp2.org[L] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4739 | else |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 4740 | R = CUR_fast_project( &CUR.zp2.cur[L] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4741 | } |
| 4742 | |
| 4743 | args[0] = R; |
| 4744 | } |
| 4745 | |
| 4746 | |
| 4747 | /*************************************************************************/ |
| 4748 | /* */ |
| 4749 | /* SCFS[]: Set Coordinate From Stack */ |
| 4750 | /* Opcode range: 0x48 */ |
| 4751 | /* Stack: f26.6 uint32 --> */ |
| 4752 | /* */ |
| 4753 | /* Formula: */ |
| 4754 | /* */ |
| 4755 | /* OA := OA + ( value - OA.p )/( f.p ) * f */ |
| 4756 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4757 | static void |
| 4758 | Ins_SCFS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4759 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4760 | FT_Long K; |
| 4761 | FT_UShort L; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4762 | |
| 4763 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4764 | L = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4765 | |
| 4766 | if ( BOUNDS( L, CUR.zp2.n_points ) ) |
| 4767 | { |
| 4768 | if ( CUR.pedantic_hinting ) |
| 4769 | CUR.error = TT_Err_Invalid_Reference; |
| 4770 | return; |
| 4771 | } |
| 4772 | |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 4773 | K = CUR_fast_project( &CUR.zp2.cur[L] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4774 | |
| 4775 | CUR_Func_move( &CUR.zp2, L, args[1] - K ); |
| 4776 | |
| 4777 | /* not part of the specs, but here for safety */ |
| 4778 | |
| 4779 | if ( CUR.GS.gep2 == 0 ) |
| 4780 | CUR.zp2.org[L] = CUR.zp2.cur[L]; |
| 4781 | } |
| 4782 | |
| 4783 | |
| 4784 | /*************************************************************************/ |
| 4785 | /* */ |
| 4786 | /* MD[a]: Measure Distance */ |
| 4787 | /* Opcode range: 0x49-0x4A */ |
| 4788 | /* Stack: uint32 uint32 --> f26.6 */ |
| 4789 | /* */ |
| 4790 | /* BULLSHIT: Measure taken in the original glyph must be along the dual */ |
| 4791 | /* projection vector. */ |
| 4792 | /* */ |
| 4793 | /* Second BULLSHIT: Flag attributes are inverted! */ |
| 4794 | /* 0 => measure distance in original outline */ |
| 4795 | /* 1 => measure distance in grid-fitted outline */ |
| 4796 | /* */ |
| 4797 | /* Third one: `zp0 - zp1', and not `zp2 - zp1! */ |
| 4798 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4799 | static void |
| 4800 | Ins_MD( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4801 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4802 | FT_UShort K, L; |
| 4803 | FT_F26Dot6 D; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4804 | |
| 4805 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4806 | K = (FT_UShort)args[1]; |
| 4807 | L = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4808 | |
| 4809 | if( BOUNDS( L, CUR.zp0.n_points ) || |
| 4810 | BOUNDS( K, CUR.zp1.n_points ) ) |
| 4811 | { |
| 4812 | if ( CUR.pedantic_hinting ) |
| 4813 | { |
| 4814 | CUR.error = TT_Err_Invalid_Reference; |
| 4815 | return; |
| 4816 | } |
| 4817 | D = 0; |
| 4818 | } |
| 4819 | else |
| 4820 | { |
| 4821 | if ( CUR.opcode & 1 ) |
| 4822 | D = CUR_Func_project( CUR.zp0.cur + L, CUR.zp1.cur + K ); |
| 4823 | else |
Werner Lemberg | c94fa66 | 2008-05-27 23:24:07 +0000 | [diff] [blame] | 4824 | { |
| 4825 | FT_Vector* vec1 = CUR.zp0.orus + L; |
| 4826 | FT_Vector* vec2 = CUR.zp1.orus + K; |
| 4827 | |
| 4828 | |
| 4829 | if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) |
| 4830 | { |
| 4831 | /* this should be faster */ |
| 4832 | D = CUR_Func_dualproj( vec1, vec2 ); |
| 4833 | D = TT_MULFIX( D, CUR.metrics.x_scale ); |
| 4834 | } |
| 4835 | else |
| 4836 | { |
| 4837 | FT_Vector vec; |
| 4838 | |
| 4839 | |
| 4840 | vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale ); |
| 4841 | vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale ); |
| 4842 | |
| 4843 | D = CUR_fast_dualproj( &vec ); |
| 4844 | } |
| 4845 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4846 | } |
| 4847 | |
| 4848 | args[0] = D; |
| 4849 | } |
| 4850 | |
| 4851 | |
| 4852 | /*************************************************************************/ |
| 4853 | /* */ |
| 4854 | /* SDPVTL[a]: Set Dual PVector to Line */ |
| 4855 | /* Opcode range: 0x86-0x87 */ |
| 4856 | /* Stack: uint32 uint32 --> */ |
| 4857 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4858 | static void |
| 4859 | Ins_SDPVTL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4860 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4861 | FT_Long A, B, C; |
| 4862 | FT_UShort p1, p2; /* was FT_Int in pas type ERROR */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4863 | |
| 4864 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4865 | p1 = (FT_UShort)args[1]; |
| 4866 | p2 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4867 | |
| 4868 | if ( BOUNDS( p2, CUR.zp1.n_points ) || |
| 4869 | BOUNDS( p1, CUR.zp2.n_points ) ) |
| 4870 | { |
| 4871 | if ( CUR.pedantic_hinting ) |
| 4872 | CUR.error = TT_Err_Invalid_Reference; |
| 4873 | return; |
| 4874 | } |
| 4875 | |
| 4876 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4877 | FT_Vector* v1 = CUR.zp1.org + p2; |
| 4878 | FT_Vector* v2 = CUR.zp2.org + p1; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4879 | |
| 4880 | |
| 4881 | A = v1->x - v2->x; |
| 4882 | B = v1->y - v2->y; |
| 4883 | } |
| 4884 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4885 | if ( ( CUR.opcode & 1 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4886 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4887 | C = B; /* counter clockwise rotation */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4888 | B = A; |
| 4889 | A = -C; |
| 4890 | } |
| 4891 | |
| 4892 | NORMalize( A, B, &CUR.GS.dualVector ); |
| 4893 | |
| 4894 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4895 | FT_Vector* v1 = CUR.zp1.cur + p2; |
| 4896 | FT_Vector* v2 = CUR.zp2.cur + p1; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4897 | |
| 4898 | |
| 4899 | A = v1->x - v2->x; |
| 4900 | B = v1->y - v2->y; |
| 4901 | } |
| 4902 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4903 | if ( ( CUR.opcode & 1 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4904 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 4905 | C = B; /* counter clockwise rotation */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4906 | B = A; |
| 4907 | A = -C; |
| 4908 | } |
| 4909 | |
| 4910 | NORMalize( A, B, &CUR.GS.projVector ); |
| 4911 | |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 4912 | GUESS_VECTOR( freeVector ); |
| 4913 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4914 | COMPUTE_Funcs(); |
| 4915 | } |
| 4916 | |
| 4917 | |
| 4918 | /*************************************************************************/ |
| 4919 | /* */ |
| 4920 | /* SZP0[]: Set Zone Pointer 0 */ |
| 4921 | /* Opcode range: 0x13 */ |
| 4922 | /* Stack: uint32 --> */ |
| 4923 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4924 | static void |
| 4925 | Ins_SZP0( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4926 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4927 | switch ( (FT_Int)args[0] ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4928 | { |
| 4929 | case 0: |
| 4930 | CUR.zp0 = CUR.twilight; |
| 4931 | break; |
| 4932 | |
| 4933 | case 1: |
| 4934 | CUR.zp0 = CUR.pts; |
| 4935 | break; |
| 4936 | |
| 4937 | default: |
| 4938 | if ( CUR.pedantic_hinting ) |
| 4939 | CUR.error = TT_Err_Invalid_Reference; |
| 4940 | return; |
| 4941 | } |
| 4942 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4943 | CUR.GS.gep0 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4944 | } |
| 4945 | |
| 4946 | |
| 4947 | /*************************************************************************/ |
| 4948 | /* */ |
| 4949 | /* SZP1[]: Set Zone Pointer 1 */ |
| 4950 | /* Opcode range: 0x14 */ |
| 4951 | /* Stack: uint32 --> */ |
| 4952 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4953 | static void |
| 4954 | Ins_SZP1( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4955 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4956 | switch ( (FT_Int)args[0] ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4957 | { |
| 4958 | case 0: |
| 4959 | CUR.zp1 = CUR.twilight; |
| 4960 | break; |
| 4961 | |
| 4962 | case 1: |
| 4963 | CUR.zp1 = CUR.pts; |
| 4964 | break; |
| 4965 | |
| 4966 | default: |
| 4967 | if ( CUR.pedantic_hinting ) |
| 4968 | CUR.error = TT_Err_Invalid_Reference; |
| 4969 | return; |
| 4970 | } |
| 4971 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4972 | CUR.GS.gep1 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4973 | } |
| 4974 | |
| 4975 | |
| 4976 | /*************************************************************************/ |
| 4977 | /* */ |
| 4978 | /* SZP2[]: Set Zone Pointer 2 */ |
| 4979 | /* Opcode range: 0x15 */ |
| 4980 | /* Stack: uint32 --> */ |
| 4981 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 4982 | static void |
| 4983 | Ins_SZP2( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4984 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 4985 | switch ( (FT_Int)args[0] ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 4986 | { |
| 4987 | case 0: |
| 4988 | CUR.zp2 = CUR.twilight; |
| 4989 | break; |
| 4990 | |
| 4991 | case 1: |
| 4992 | CUR.zp2 = CUR.pts; |
| 4993 | break; |
| 4994 | |
| 4995 | default: |
| 4996 | if ( CUR.pedantic_hinting ) |
| 4997 | CUR.error = TT_Err_Invalid_Reference; |
| 4998 | return; |
| 4999 | } |
| 5000 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5001 | CUR.GS.gep2 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5002 | } |
| 5003 | |
| 5004 | |
| 5005 | /*************************************************************************/ |
| 5006 | /* */ |
| 5007 | /* SZPS[]: Set Zone PointerS */ |
| 5008 | /* Opcode range: 0x16 */ |
| 5009 | /* Stack: uint32 --> */ |
| 5010 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5011 | static void |
| 5012 | Ins_SZPS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5013 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5014 | switch ( (FT_Int)args[0] ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5015 | { |
| 5016 | case 0: |
| 5017 | CUR.zp0 = CUR.twilight; |
| 5018 | break; |
| 5019 | |
| 5020 | case 1: |
| 5021 | CUR.zp0 = CUR.pts; |
| 5022 | break; |
| 5023 | |
| 5024 | default: |
| 5025 | if ( CUR.pedantic_hinting ) |
| 5026 | CUR.error = TT_Err_Invalid_Reference; |
| 5027 | return; |
| 5028 | } |
| 5029 | |
| 5030 | CUR.zp1 = CUR.zp0; |
| 5031 | CUR.zp2 = CUR.zp0; |
| 5032 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5033 | CUR.GS.gep0 = (FT_UShort)args[0]; |
| 5034 | CUR.GS.gep1 = (FT_UShort)args[0]; |
| 5035 | CUR.GS.gep2 = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5036 | } |
| 5037 | |
| 5038 | |
| 5039 | /*************************************************************************/ |
| 5040 | /* */ |
| 5041 | /* INSTCTRL[]: INSTruction ConTRoL */ |
| 5042 | /* Opcode range: 0x8e */ |
| 5043 | /* Stack: int32 int32 --> */ |
| 5044 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5045 | static void |
| 5046 | Ins_INSTCTRL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5047 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5048 | FT_Long K, L; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5049 | |
| 5050 | |
| 5051 | K = args[1]; |
| 5052 | L = args[0]; |
| 5053 | |
| 5054 | if ( K < 1 || K > 2 ) |
| 5055 | { |
| 5056 | if ( CUR.pedantic_hinting ) |
| 5057 | CUR.error = TT_Err_Invalid_Reference; |
| 5058 | return; |
| 5059 | } |
| 5060 | |
| 5061 | if ( L != 0 ) |
| 5062 | L = K; |
| 5063 | |
David Turner | 3b7049f | 2001-07-07 16:12:14 +0000 | [diff] [blame] | 5064 | CUR.GS.instruct_control = FT_BOOL( |
| 5065 | ( (FT_Byte)CUR.GS.instruct_control & ~(FT_Byte)K ) | (FT_Byte)L ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5066 | } |
| 5067 | |
| 5068 | |
| 5069 | /*************************************************************************/ |
| 5070 | /* */ |
| 5071 | /* SCANCTRL[]: SCAN ConTRoL */ |
| 5072 | /* Opcode range: 0x85 */ |
| 5073 | /* Stack: uint32? --> */ |
| 5074 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5075 | static void |
| 5076 | Ins_SCANCTRL( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5077 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5078 | FT_Int A; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5079 | |
| 5080 | |
| 5081 | /* Get Threshold */ |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5082 | A = (FT_Int)( args[0] & 0xFF ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5083 | |
| 5084 | if ( A == 0xFF ) |
| 5085 | { |
| 5086 | CUR.GS.scan_control = TRUE; |
| 5087 | return; |
| 5088 | } |
| 5089 | else if ( A == 0 ) |
| 5090 | { |
| 5091 | CUR.GS.scan_control = FALSE; |
| 5092 | return; |
| 5093 | } |
| 5094 | |
| 5095 | A *= 64; |
| 5096 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5097 | #if 0 |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5098 | if ( ( args[0] & 0x100 ) != 0 && CUR.metrics.pointSize <= A ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5099 | CUR.GS.scan_control = TRUE; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5100 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5101 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5102 | if ( ( args[0] & 0x200 ) != 0 && CUR.tt_metrics.rotated ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5103 | CUR.GS.scan_control = TRUE; |
| 5104 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5105 | if ( ( args[0] & 0x400 ) != 0 && CUR.tt_metrics.stretched ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5106 | CUR.GS.scan_control = TRUE; |
| 5107 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5108 | #if 0 |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5109 | if ( ( args[0] & 0x800 ) != 0 && CUR.metrics.pointSize > A ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5110 | CUR.GS.scan_control = FALSE; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5111 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5112 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5113 | if ( ( args[0] & 0x1000 ) != 0 && CUR.tt_metrics.rotated ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5114 | CUR.GS.scan_control = FALSE; |
| 5115 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5116 | if ( ( args[0] & 0x2000 ) != 0 && CUR.tt_metrics.stretched ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5117 | CUR.GS.scan_control = FALSE; |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5118 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5119 | |
| 5120 | |
| 5121 | /*************************************************************************/ |
| 5122 | /* */ |
| 5123 | /* SCANTYPE[]: SCAN TYPE */ |
| 5124 | /* Opcode range: 0x8D */ |
| 5125 | /* Stack: uint32? --> */ |
| 5126 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5127 | static void |
| 5128 | Ins_SCANTYPE( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5129 | { |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 5130 | /* for compatibility with future enhancements, */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5131 | /* we must ignore new modes */ |
| 5132 | |
| 5133 | if ( args[0] >= 0 && args[0] <= 5 ) |
| 5134 | { |
| 5135 | if ( args[0] == 3 ) |
| 5136 | args[0] = 2; |
| 5137 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5138 | CUR.GS.scan_type = (FT_Int)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5139 | } |
| 5140 | } |
| 5141 | |
| 5142 | |
| 5143 | /*************************************************************************/ |
| 5144 | /* */ |
| 5145 | /* MANAGING OUTLINES */ |
| 5146 | /* */ |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 5147 | /* Instructions appear in the specification's order. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5148 | /* */ |
| 5149 | /*************************************************************************/ |
| 5150 | |
| 5151 | |
| 5152 | /*************************************************************************/ |
| 5153 | /* */ |
| 5154 | /* FLIPPT[]: FLIP PoinT */ |
| 5155 | /* Opcode range: 0x80 */ |
| 5156 | /* Stack: uint32... --> */ |
| 5157 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5158 | static void |
| 5159 | Ins_FLIPPT( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5160 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5161 | FT_UShort point; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5162 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 5163 | FT_UNUSED_ARG; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5164 | |
Werner Lemberg | 5811c7c | 2000-07-02 13:53:16 +0000 | [diff] [blame] | 5165 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5166 | if ( CUR.top < CUR.GS.loop ) |
| 5167 | { |
| 5168 | CUR.error = TT_Err_Too_Few_Arguments; |
| 5169 | return; |
| 5170 | } |
| 5171 | |
| 5172 | while ( CUR.GS.loop > 0 ) |
| 5173 | { |
| 5174 | CUR.args--; |
| 5175 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5176 | point = (FT_UShort)CUR.stack[CUR.args]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5177 | |
| 5178 | if ( BOUNDS( point, CUR.pts.n_points ) ) |
| 5179 | { |
| 5180 | if ( CUR.pedantic_hinting ) |
| 5181 | { |
| 5182 | CUR.error = TT_Err_Invalid_Reference; |
| 5183 | return; |
| 5184 | } |
| 5185 | } |
| 5186 | else |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 5187 | CUR.pts.tags[point] ^= FT_CURVE_TAG_ON; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5188 | |
| 5189 | CUR.GS.loop--; |
| 5190 | } |
| 5191 | |
| 5192 | CUR.GS.loop = 1; |
| 5193 | CUR.new_top = CUR.args; |
| 5194 | } |
| 5195 | |
| 5196 | |
| 5197 | /*************************************************************************/ |
| 5198 | /* */ |
| 5199 | /* FLIPRGON[]: FLIP RanGe ON */ |
| 5200 | /* Opcode range: 0x81 */ |
| 5201 | /* Stack: uint32 uint32 --> */ |
| 5202 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5203 | static void |
| 5204 | Ins_FLIPRGON( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5205 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5206 | FT_UShort I, K, L; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5207 | |
| 5208 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5209 | K = (FT_UShort)args[1]; |
| 5210 | L = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5211 | |
| 5212 | if ( BOUNDS( K, CUR.pts.n_points ) || |
| 5213 | BOUNDS( L, CUR.pts.n_points ) ) |
| 5214 | { |
| 5215 | if ( CUR.pedantic_hinting ) |
| 5216 | CUR.error = TT_Err_Invalid_Reference; |
| 5217 | return; |
| 5218 | } |
| 5219 | |
| 5220 | for ( I = L; I <= K; I++ ) |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 5221 | CUR.pts.tags[I] |= FT_CURVE_TAG_ON; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5222 | } |
| 5223 | |
| 5224 | |
| 5225 | /*************************************************************************/ |
| 5226 | /* */ |
| 5227 | /* FLIPRGOFF: FLIP RanGe OFF */ |
| 5228 | /* Opcode range: 0x82 */ |
| 5229 | /* Stack: uint32 uint32 --> */ |
| 5230 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5231 | static void |
| 5232 | Ins_FLIPRGOFF( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5233 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5234 | FT_UShort I, K, L; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5235 | |
| 5236 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5237 | K = (FT_UShort)args[1]; |
| 5238 | L = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5239 | |
| 5240 | if ( BOUNDS( K, CUR.pts.n_points ) || |
| 5241 | BOUNDS( L, CUR.pts.n_points ) ) |
| 5242 | { |
| 5243 | if ( CUR.pedantic_hinting ) |
| 5244 | CUR.error = TT_Err_Invalid_Reference; |
| 5245 | return; |
| 5246 | } |
| 5247 | |
| 5248 | for ( I = L; I <= K; I++ ) |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 5249 | CUR.pts.tags[I] &= ~FT_CURVE_TAG_ON; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5250 | } |
| 5251 | |
| 5252 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5253 | static FT_Bool |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5254 | Compute_Point_Displacement( EXEC_OP_ FT_F26Dot6* x, |
| 5255 | FT_F26Dot6* y, |
| 5256 | TT_GlyphZone zone, |
| 5257 | FT_UShort* refp ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5258 | { |
David Turner | b5713c5 | 2002-03-14 11:26:29 +0000 | [diff] [blame] | 5259 | TT_GlyphZoneRec zp; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5260 | FT_UShort p; |
| 5261 | FT_F26Dot6 d; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5262 | |
| 5263 | |
| 5264 | if ( CUR.opcode & 1 ) |
| 5265 | { |
| 5266 | zp = CUR.zp0; |
| 5267 | p = CUR.GS.rp1; |
| 5268 | } |
| 5269 | else |
| 5270 | { |
| 5271 | zp = CUR.zp1; |
| 5272 | p = CUR.GS.rp2; |
| 5273 | } |
| 5274 | |
| 5275 | if ( BOUNDS( p, zp.n_points ) ) |
| 5276 | { |
| 5277 | if ( CUR.pedantic_hinting ) |
| 5278 | CUR.error = TT_Err_Invalid_Reference; |
Werner Lemberg | 8c4120d | 2007-01-15 06:42:40 +0000 | [diff] [blame] | 5279 | *refp = 0; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5280 | return FAILURE; |
| 5281 | } |
| 5282 | |
| 5283 | *zone = zp; |
| 5284 | *refp = p; |
| 5285 | |
| 5286 | d = CUR_Func_project( zp.cur + p, zp.org + p ); |
| 5287 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 5288 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 5289 | if ( CUR.face->unpatented_hinting ) |
| 5290 | { |
| 5291 | if ( CUR.GS.both_x_axis ) |
| 5292 | { |
| 5293 | *x = d; |
| 5294 | *y = 0; |
| 5295 | } |
| 5296 | else |
| 5297 | { |
| 5298 | *x = 0; |
| 5299 | *y = d; |
David Turner | 87c0d30 | 2003-12-24 01:10:46 +0000 | [diff] [blame] | 5300 | } |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 5301 | } |
| 5302 | else |
| 5303 | #endif |
| 5304 | { |
| 5305 | *x = TT_MULDIV( d, |
| 5306 | (FT_Long)CUR.GS.freeVector.x * 0x10000L, |
| 5307 | CUR.F_dot_P ); |
| 5308 | *y = TT_MULDIV( d, |
| 5309 | (FT_Long)CUR.GS.freeVector.y * 0x10000L, |
| 5310 | CUR.F_dot_P ); |
| 5311 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5312 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5313 | return SUCCESS; |
| 5314 | } |
| 5315 | |
| 5316 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5317 | static void |
| 5318 | Move_Zp2_Point( EXEC_OP_ FT_UShort point, |
| 5319 | FT_F26Dot6 dx, |
| 5320 | FT_F26Dot6 dy, |
| 5321 | FT_Bool touch ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5322 | { |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 5323 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 5324 | if ( CUR.face->unpatented_hinting ) |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 5325 | { |
| 5326 | if ( CUR.GS.both_x_axis ) |
| 5327 | { |
| 5328 | CUR.zp2.cur[point].x += dx; |
| 5329 | if ( touch ) |
| 5330 | CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X; |
| 5331 | } |
| 5332 | else |
| 5333 | { |
| 5334 | CUR.zp2.cur[point].y += dy; |
| 5335 | if ( touch ) |
| 5336 | CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y; |
| 5337 | } |
| 5338 | return; |
| 5339 | } |
| 5340 | #endif |
| 5341 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5342 | if ( CUR.GS.freeVector.x != 0 ) |
| 5343 | { |
| 5344 | CUR.zp2.cur[point].x += dx; |
| 5345 | if ( touch ) |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 5346 | CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_X; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5347 | } |
| 5348 | |
| 5349 | if ( CUR.GS.freeVector.y != 0 ) |
| 5350 | { |
| 5351 | CUR.zp2.cur[point].y += dy; |
| 5352 | if ( touch ) |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 5353 | CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_Y; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5354 | } |
| 5355 | } |
| 5356 | |
| 5357 | |
| 5358 | /*************************************************************************/ |
| 5359 | /* */ |
| 5360 | /* SHP[a]: SHift Point by the last point */ |
| 5361 | /* Opcode range: 0x32-0x33 */ |
| 5362 | /* Stack: uint32... --> */ |
| 5363 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5364 | static void |
| 5365 | Ins_SHP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5366 | { |
David Turner | b5713c5 | 2002-03-14 11:26:29 +0000 | [diff] [blame] | 5367 | TT_GlyphZoneRec zp; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5368 | FT_UShort refp; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5369 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5370 | FT_F26Dot6 dx, |
| 5371 | dy; |
| 5372 | FT_UShort point; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5373 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 5374 | FT_UNUSED_ARG; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5375 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5376 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5377 | if ( CUR.top < CUR.GS.loop ) |
| 5378 | { |
| 5379 | CUR.error = TT_Err_Invalid_Reference; |
| 5380 | return; |
| 5381 | } |
| 5382 | |
| 5383 | if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) |
| 5384 | return; |
| 5385 | |
| 5386 | while ( CUR.GS.loop > 0 ) |
| 5387 | { |
| 5388 | CUR.args--; |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5389 | point = (FT_UShort)CUR.stack[CUR.args]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5390 | |
| 5391 | if ( BOUNDS( point, CUR.zp2.n_points ) ) |
| 5392 | { |
| 5393 | if ( CUR.pedantic_hinting ) |
| 5394 | { |
| 5395 | CUR.error = TT_Err_Invalid_Reference; |
| 5396 | return; |
| 5397 | } |
| 5398 | } |
| 5399 | else |
| 5400 | /* XXX: UNDOCUMENTED! SHP touches the points */ |
| 5401 | MOVE_Zp2_Point( point, dx, dy, TRUE ); |
| 5402 | |
| 5403 | CUR.GS.loop--; |
| 5404 | } |
| 5405 | |
| 5406 | CUR.GS.loop = 1; |
| 5407 | CUR.new_top = CUR.args; |
| 5408 | } |
| 5409 | |
| 5410 | |
| 5411 | /*************************************************************************/ |
| 5412 | /* */ |
| 5413 | /* SHC[a]: SHift Contour */ |
| 5414 | /* Opcode range: 0x34-35 */ |
| 5415 | /* Stack: uint32 --> */ |
| 5416 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5417 | static void |
| 5418 | Ins_SHC( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5419 | { |
David Turner | b5713c5 | 2002-03-14 11:26:29 +0000 | [diff] [blame] | 5420 | TT_GlyphZoneRec zp; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5421 | FT_UShort refp; |
| 5422 | FT_F26Dot6 dx, |
| 5423 | dy; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5424 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5425 | FT_Short contour; |
| 5426 | FT_UShort first_point, last_point, i; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5427 | |
| 5428 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5429 | contour = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5430 | |
| 5431 | if ( BOUNDS( contour, CUR.pts.n_contours ) ) |
| 5432 | { |
| 5433 | if ( CUR.pedantic_hinting ) |
| 5434 | CUR.error = TT_Err_Invalid_Reference; |
| 5435 | return; |
| 5436 | } |
| 5437 | |
| 5438 | if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) |
| 5439 | return; |
| 5440 | |
| 5441 | if ( contour == 0 ) |
| 5442 | first_point = 0; |
| 5443 | else |
Werner Lemberg | a2da05c | 2006-06-25 06:27:27 +0000 | [diff] [blame] | 5444 | first_point = (FT_UShort)( CUR.pts.contours[contour - 1] + 1 - |
| 5445 | CUR.pts.first_point ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5446 | |
Werner Lemberg | b4142d5 | 2007-01-17 12:45:26 +0000 | [diff] [blame] | 5447 | last_point = (FT_UShort)( CUR.pts.contours[contour] - |
| 5448 | CUR.pts.first_point ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5449 | |
| 5450 | /* XXX: this is probably wrong... at least it prevents memory */ |
| 5451 | /* corruption when zp2 is the twilight zone */ |
| 5452 | if ( last_point > CUR.zp2.n_points ) |
| 5453 | { |
| 5454 | if ( CUR.zp2.n_points > 0 ) |
David Turner | 3b7049f | 2001-07-07 16:12:14 +0000 | [diff] [blame] | 5455 | last_point = (FT_UShort)(CUR.zp2.n_points - 1); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5456 | else |
| 5457 | last_point = 0; |
| 5458 | } |
| 5459 | |
Werner Lemberg | 555258f | 2007-01-21 09:46:37 +0000 | [diff] [blame] | 5460 | /* XXX: UNDOCUMENTED! SHC touches the points */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5461 | for ( i = first_point; i <= last_point; i++ ) |
| 5462 | { |
| 5463 | if ( zp.cur != CUR.zp2.cur || refp != i ) |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 5464 | MOVE_Zp2_Point( i, dx, dy, TRUE ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5465 | } |
| 5466 | } |
| 5467 | |
| 5468 | |
| 5469 | /*************************************************************************/ |
| 5470 | /* */ |
| 5471 | /* SHZ[a]: SHift Zone */ |
| 5472 | /* Opcode range: 0x36-37 */ |
| 5473 | /* Stack: uint32 --> */ |
| 5474 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5475 | static void |
| 5476 | Ins_SHZ( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5477 | { |
David Turner | b5713c5 | 2002-03-14 11:26:29 +0000 | [diff] [blame] | 5478 | TT_GlyphZoneRec zp; |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5479 | FT_UShort refp; |
| 5480 | FT_F26Dot6 dx, |
| 5481 | dy; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5482 | |
Werner Lemberg | 91db04c | 2002-04-01 14:25:28 +0000 | [diff] [blame] | 5483 | FT_UShort last_point, i; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5484 | |
| 5485 | |
| 5486 | if ( BOUNDS( args[0], 2 ) ) |
| 5487 | { |
| 5488 | if ( CUR.pedantic_hinting ) |
| 5489 | CUR.error = TT_Err_Invalid_Reference; |
| 5490 | return; |
| 5491 | } |
| 5492 | |
| 5493 | if ( COMPUTE_Point_Displacement( &dx, &dy, &zp, &refp ) ) |
| 5494 | return; |
| 5495 | |
Werner Lemberg | 555258f | 2007-01-21 09:46:37 +0000 | [diff] [blame] | 5496 | /* XXX: UNDOCUMENTED! SHZ doesn't move the phantom points. */ |
| 5497 | /* Twilight zone has no contours, so use `n_points'. */ |
| 5498 | /* Normal zone's `n_points' includes phantoms, so must */ |
| 5499 | /* use end of last contour. */ |
| 5500 | if ( CUR.GS.gep2 == 0 && CUR.zp2.n_points > 0 ) |
| 5501 | last_point = (FT_UShort)( CUR.zp2.n_points - 1 ); |
| 5502 | else if ( CUR.GS.gep2 == 1 && CUR.zp2.n_contours > 0 ) |
| 5503 | last_point = (FT_UShort)( CUR.zp2.contours[CUR.zp2.n_contours - 1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5504 | else |
| 5505 | last_point = 0; |
| 5506 | |
| 5507 | /* XXX: UNDOCUMENTED! SHZ doesn't touch the points */ |
| 5508 | for ( i = 0; i <= last_point; i++ ) |
| 5509 | { |
| 5510 | if ( zp.cur != CUR.zp2.cur || refp != i ) |
| 5511 | MOVE_Zp2_Point( i, dx, dy, FALSE ); |
| 5512 | } |
| 5513 | } |
| 5514 | |
| 5515 | |
| 5516 | /*************************************************************************/ |
| 5517 | /* */ |
| 5518 | /* SHPIX[]: SHift points by a PIXel amount */ |
| 5519 | /* Opcode range: 0x38 */ |
| 5520 | /* Stack: f26.6 uint32... --> */ |
| 5521 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5522 | static void |
| 5523 | Ins_SHPIX( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5524 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5525 | FT_F26Dot6 dx, dy; |
| 5526 | FT_UShort point; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5527 | |
| 5528 | |
| 5529 | if ( CUR.top < CUR.GS.loop + 1 ) |
| 5530 | { |
| 5531 | CUR.error = TT_Err_Invalid_Reference; |
| 5532 | return; |
| 5533 | } |
| 5534 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 5535 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 5536 | if ( CUR.face->unpatented_hinting ) |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 5537 | { |
| 5538 | if ( CUR.GS.both_x_axis ) |
| 5539 | { |
| 5540 | dx = TT_MulFix14( args[0], 0x4000 ); |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 5541 | dy = 0; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 5542 | } |
| 5543 | else |
| 5544 | { |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 5545 | dx = 0; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 5546 | dy = TT_MulFix14( args[0], 0x4000 ); |
| 5547 | } |
| 5548 | } |
| 5549 | else |
| 5550 | #endif |
| 5551 | { |
| 5552 | dx = TT_MulFix14( args[0], CUR.GS.freeVector.x ); |
| 5553 | dy = TT_MulFix14( args[0], CUR.GS.freeVector.y ); |
| 5554 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5555 | |
| 5556 | while ( CUR.GS.loop > 0 ) |
| 5557 | { |
| 5558 | CUR.args--; |
| 5559 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5560 | point = (FT_UShort)CUR.stack[CUR.args]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5561 | |
| 5562 | if ( BOUNDS( point, CUR.zp2.n_points ) ) |
| 5563 | { |
| 5564 | if ( CUR.pedantic_hinting ) |
| 5565 | { |
| 5566 | CUR.error = TT_Err_Invalid_Reference; |
| 5567 | return; |
| 5568 | } |
| 5569 | } |
| 5570 | else |
| 5571 | MOVE_Zp2_Point( point, dx, dy, TRUE ); |
| 5572 | |
| 5573 | CUR.GS.loop--; |
| 5574 | } |
| 5575 | |
| 5576 | CUR.GS.loop = 1; |
| 5577 | CUR.new_top = CUR.args; |
| 5578 | } |
| 5579 | |
| 5580 | |
| 5581 | /*************************************************************************/ |
| 5582 | /* */ |
| 5583 | /* MSIRP[a]: Move Stack Indirect Relative Position */ |
| 5584 | /* Opcode range: 0x3A-0x3B */ |
| 5585 | /* Stack: f26.6 uint32 --> */ |
| 5586 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5587 | static void |
| 5588 | Ins_MSIRP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5589 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5590 | FT_UShort point; |
| 5591 | FT_F26Dot6 distance; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5592 | |
| 5593 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5594 | point = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5595 | |
| 5596 | if ( BOUNDS( point, CUR.zp1.n_points ) || |
| 5597 | BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) |
| 5598 | { |
| 5599 | if ( CUR.pedantic_hinting ) |
| 5600 | CUR.error = TT_Err_Invalid_Reference; |
| 5601 | return; |
| 5602 | } |
| 5603 | |
| 5604 | /* XXX: UNDOCUMENTED! behaviour */ |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 5605 | if ( CUR.GS.gep1 == 0 ) /* if the point that is to be moved */ |
| 5606 | /* is in twilight zone */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5607 | { |
| 5608 | CUR.zp1.org[point] = CUR.zp0.org[CUR.GS.rp0]; |
Werner Lemberg | be67c4e | 2003-11-24 22:54:58 +0000 | [diff] [blame] | 5609 | CUR_Func_move_orig( &CUR.zp1, point, args[1] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5610 | CUR.zp1.cur[point] = CUR.zp1.org[point]; |
| 5611 | } |
| 5612 | |
| 5613 | distance = CUR_Func_project( CUR.zp1.cur + point, |
| 5614 | CUR.zp0.cur + CUR.GS.rp0 ); |
| 5615 | |
| 5616 | CUR_Func_move( &CUR.zp1, point, args[1] - distance ); |
| 5617 | |
| 5618 | CUR.GS.rp1 = CUR.GS.rp0; |
| 5619 | CUR.GS.rp2 = point; |
| 5620 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5621 | if ( ( CUR.opcode & 1 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5622 | CUR.GS.rp0 = point; |
| 5623 | } |
| 5624 | |
| 5625 | |
| 5626 | /*************************************************************************/ |
| 5627 | /* */ |
| 5628 | /* MDAP[a]: Move Direct Absolute Point */ |
| 5629 | /* Opcode range: 0x2E-0x2F */ |
| 5630 | /* Stack: uint32 --> */ |
| 5631 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5632 | static void |
| 5633 | Ins_MDAP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5634 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5635 | FT_UShort point; |
| 5636 | FT_F26Dot6 cur_dist, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5637 | distance; |
| 5638 | |
| 5639 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5640 | point = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5641 | |
| 5642 | if ( BOUNDS( point, CUR.zp0.n_points ) ) |
| 5643 | { |
| 5644 | if ( CUR.pedantic_hinting ) |
| 5645 | CUR.error = TT_Err_Invalid_Reference; |
| 5646 | return; |
| 5647 | } |
| 5648 | |
| 5649 | /* XXX: Is there some undocumented feature while in the */ |
| 5650 | /* twilight zone? ? */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5651 | if ( ( CUR.opcode & 1 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5652 | { |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 5653 | cur_dist = CUR_fast_project( &CUR.zp0.cur[point] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5654 | distance = CUR_Func_round( cur_dist, |
| 5655 | CUR.tt_metrics.compensations[0] ) - cur_dist; |
| 5656 | } |
| 5657 | else |
| 5658 | distance = 0; |
| 5659 | |
| 5660 | CUR_Func_move( &CUR.zp0, point, distance ); |
| 5661 | |
| 5662 | CUR.GS.rp0 = point; |
| 5663 | CUR.GS.rp1 = point; |
| 5664 | } |
| 5665 | |
| 5666 | |
| 5667 | /*************************************************************************/ |
| 5668 | /* */ |
| 5669 | /* MIAP[a]: Move Indirect Absolute Point */ |
| 5670 | /* Opcode range: 0x3E-0x3F */ |
| 5671 | /* Stack: uint32 uint32 --> */ |
| 5672 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5673 | static void |
| 5674 | Ins_MIAP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5675 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5676 | FT_ULong cvtEntry; |
| 5677 | FT_UShort point; |
| 5678 | FT_F26Dot6 distance, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5679 | org_dist; |
| 5680 | |
| 5681 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5682 | cvtEntry = (FT_ULong)args[1]; |
| 5683 | point = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5684 | |
| 5685 | if ( BOUNDS( point, CUR.zp0.n_points ) || |
| 5686 | BOUNDS( cvtEntry, CUR.cvtSize ) ) |
| 5687 | { |
| 5688 | if ( CUR.pedantic_hinting ) |
| 5689 | CUR.error = TT_Err_Invalid_Reference; |
| 5690 | return; |
| 5691 | } |
| 5692 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5693 | /* XXX: UNDOCUMENTED! */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5694 | /* */ |
| 5695 | /* The behaviour of an MIAP instruction is quite */ |
| 5696 | /* different when used in the twilight zone. */ |
| 5697 | /* */ |
Werner Lemberg | 406d25f | 2007-02-12 22:01:18 +0000 | [diff] [blame] | 5698 | /* First, no control value cut-in test is performed */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5699 | /* as it would fail anyway. Second, the original */ |
| 5700 | /* point, i.e. (org_x,org_y) of zp0.point, is set */ |
| 5701 | /* to the absolute, unrounded distance found in */ |
| 5702 | /* the CVT. */ |
| 5703 | /* */ |
| 5704 | /* This is used in the CVT programs of the Microsoft */ |
| 5705 | /* fonts Arial, Times, etc., in order to re-adjust */ |
| 5706 | /* some key font heights. It allows the use of the */ |
| 5707 | /* IP instruction in the twilight zone, which */ |
| 5708 | /* otherwise would be `illegal' according to the */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5709 | /* specification. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5710 | /* */ |
| 5711 | /* We implement it with a special sequence for the */ |
| 5712 | /* twilight zone. This is a bad hack, but it seems */ |
| 5713 | /* to work. */ |
| 5714 | |
| 5715 | distance = CUR_Func_read_cvt( cvtEntry ); |
| 5716 | |
| 5717 | if ( CUR.GS.gep0 == 0 ) /* If in twilight zone */ |
| 5718 | { |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 5719 | CUR.zp0.org[point].x = TT_MulFix14( distance, CUR.GS.freeVector.x ); |
| 5720 | CUR.zp0.org[point].y = TT_MulFix14( distance, CUR.GS.freeVector.y ), |
| 5721 | CUR.zp0.cur[point] = CUR.zp0.org[point]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5722 | } |
| 5723 | |
David Turner | 72a0dd2 | 2007-02-12 15:24:51 +0000 | [diff] [blame] | 5724 | org_dist = CUR_fast_project( &CUR.zp0.cur[point] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5725 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5726 | if ( ( CUR.opcode & 1 ) != 0 ) /* rounding and control cutin flag */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5727 | { |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 5728 | if ( FT_ABS( distance - org_dist ) > CUR.GS.control_value_cutin ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5729 | distance = org_dist; |
| 5730 | |
| 5731 | distance = CUR_Func_round( distance, CUR.tt_metrics.compensations[0] ); |
| 5732 | } |
| 5733 | |
| 5734 | CUR_Func_move( &CUR.zp0, point, distance - org_dist ); |
| 5735 | |
| 5736 | CUR.GS.rp0 = point; |
| 5737 | CUR.GS.rp1 = point; |
| 5738 | } |
| 5739 | |
| 5740 | |
| 5741 | /*************************************************************************/ |
| 5742 | /* */ |
| 5743 | /* MDRP[abcde]: Move Direct Relative Point */ |
| 5744 | /* Opcode range: 0xC0-0xDF */ |
| 5745 | /* Stack: uint32 --> */ |
| 5746 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5747 | static void |
| 5748 | Ins_MDRP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5749 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5750 | FT_UShort point; |
| 5751 | FT_F26Dot6 org_dist, distance; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5752 | |
| 5753 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5754 | point = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5755 | |
| 5756 | if ( BOUNDS( point, CUR.zp1.n_points ) || |
| 5757 | BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) |
| 5758 | { |
| 5759 | if ( CUR.pedantic_hinting ) |
| 5760 | CUR.error = TT_Err_Invalid_Reference; |
| 5761 | return; |
| 5762 | } |
| 5763 | |
| 5764 | /* XXX: Is there some undocumented feature while in the */ |
| 5765 | /* twilight zone? */ |
| 5766 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5767 | /* XXX: UNDOCUMENTED: twilight zone special case */ |
David Turner | 74c34eb | 2007-03-18 07:19:31 +0000 | [diff] [blame] | 5768 | |
| 5769 | if ( CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 ) |
| 5770 | { |
| 5771 | FT_Vector* vec1 = &CUR.zp1.org[point]; |
| 5772 | FT_Vector* vec2 = &CUR.zp0.org[CUR.GS.rp0]; |
| 5773 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5774 | |
David Turner | 74c34eb | 2007-03-18 07:19:31 +0000 | [diff] [blame] | 5775 | org_dist = CUR_Func_dualproj( vec1, vec2 ); |
| 5776 | } |
| 5777 | else |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 5778 | { |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 5779 | FT_Vector* vec1 = &CUR.zp1.orus[point]; |
| 5780 | FT_Vector* vec2 = &CUR.zp0.orus[CUR.GS.rp0]; |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 5781 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 5782 | |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 5783 | if ( CUR.metrics.x_scale == CUR.metrics.y_scale ) |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 5784 | { |
| 5785 | /* this should be faster */ |
| 5786 | org_dist = CUR_Func_dualproj( vec1, vec2 ); |
| 5787 | org_dist = TT_MULFIX( org_dist, CUR.metrics.x_scale ); |
| 5788 | } |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 5789 | else |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 5790 | { |
| 5791 | FT_Vector vec; |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 5792 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 5793 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 5794 | vec.x = TT_MULFIX( vec1->x - vec2->x, CUR.metrics.x_scale ); |
| 5795 | vec.y = TT_MULFIX( vec1->y - vec2->y, CUR.metrics.y_scale ); |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 5796 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 5797 | org_dist = CUR_fast_dualproj( &vec ); |
| 5798 | } |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 5799 | } |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 5800 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 5801 | /* single width cut-in test */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5802 | |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 5803 | if ( FT_ABS( org_dist - CUR.GS.single_width_value ) < |
Werner Lemberg | 6e9b318 | 2003-06-10 10:54:33 +0000 | [diff] [blame] | 5804 | CUR.GS.single_width_cutin ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5805 | { |
| 5806 | if ( org_dist >= 0 ) |
| 5807 | org_dist = CUR.GS.single_width_value; |
| 5808 | else |
| 5809 | org_dist = -CUR.GS.single_width_value; |
| 5810 | } |
| 5811 | |
| 5812 | /* round flag */ |
| 5813 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5814 | if ( ( CUR.opcode & 4 ) != 0 ) |
| 5815 | distance = CUR_Func_round( |
| 5816 | org_dist, |
| 5817 | CUR.tt_metrics.compensations[CUR.opcode & 3] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5818 | else |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5819 | distance = ROUND_None( |
| 5820 | org_dist, |
| 5821 | CUR.tt_metrics.compensations[CUR.opcode & 3] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5822 | |
| 5823 | /* minimum distance flag */ |
| 5824 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5825 | if ( ( CUR.opcode & 8 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5826 | { |
| 5827 | if ( org_dist >= 0 ) |
| 5828 | { |
| 5829 | if ( distance < CUR.GS.minimum_distance ) |
| 5830 | distance = CUR.GS.minimum_distance; |
| 5831 | } |
| 5832 | else |
| 5833 | { |
| 5834 | if ( distance > -CUR.GS.minimum_distance ) |
| 5835 | distance = -CUR.GS.minimum_distance; |
| 5836 | } |
| 5837 | } |
| 5838 | |
| 5839 | /* now move the point */ |
| 5840 | |
| 5841 | org_dist = CUR_Func_project( CUR.zp1.cur + point, |
| 5842 | CUR.zp0.cur + CUR.GS.rp0 ); |
| 5843 | |
| 5844 | CUR_Func_move( &CUR.zp1, point, distance - org_dist ); |
| 5845 | |
| 5846 | CUR.GS.rp1 = CUR.GS.rp0; |
| 5847 | CUR.GS.rp2 = point; |
| 5848 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5849 | if ( ( CUR.opcode & 16 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5850 | CUR.GS.rp0 = point; |
| 5851 | } |
| 5852 | |
| 5853 | |
| 5854 | /*************************************************************************/ |
| 5855 | /* */ |
| 5856 | /* MIRP[abcde]: Move Indirect Relative Point */ |
| 5857 | /* Opcode range: 0xE0-0xFF */ |
| 5858 | /* Stack: int32? uint32 --> */ |
| 5859 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5860 | static void |
| 5861 | Ins_MIRP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5862 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5863 | FT_UShort point; |
| 5864 | FT_ULong cvtEntry; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5865 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5866 | FT_F26Dot6 cvt_dist, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5867 | distance, |
| 5868 | cur_dist, |
| 5869 | org_dist; |
| 5870 | |
| 5871 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5872 | point = (FT_UShort)args[0]; |
| 5873 | cvtEntry = (FT_ULong)( args[1] + 1 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5874 | |
| 5875 | /* XXX: UNDOCUMENTED! cvt[-1] = 0 always */ |
| 5876 | |
| 5877 | if ( BOUNDS( point, CUR.zp1.n_points ) || |
| 5878 | BOUNDS( cvtEntry, CUR.cvtSize + 1 ) || |
| 5879 | BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) |
| 5880 | { |
| 5881 | if ( CUR.pedantic_hinting ) |
| 5882 | CUR.error = TT_Err_Invalid_Reference; |
| 5883 | return; |
| 5884 | } |
| 5885 | |
| 5886 | if ( !cvtEntry ) |
| 5887 | cvt_dist = 0; |
| 5888 | else |
| 5889 | cvt_dist = CUR_Func_read_cvt( cvtEntry - 1 ); |
| 5890 | |
| 5891 | /* single width test */ |
| 5892 | |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 5893 | if ( FT_ABS( cvt_dist - CUR.GS.single_width_value ) < |
Werner Lemberg | 6e9b318 | 2003-06-10 10:54:33 +0000 | [diff] [blame] | 5894 | CUR.GS.single_width_cutin ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5895 | { |
| 5896 | if ( cvt_dist >= 0 ) |
| 5897 | cvt_dist = CUR.GS.single_width_value; |
| 5898 | else |
| 5899 | cvt_dist = -CUR.GS.single_width_value; |
| 5900 | } |
| 5901 | |
| 5902 | /* XXX: UNDOCUMENTED! -- twilight zone */ |
| 5903 | |
| 5904 | if ( CUR.GS.gep1 == 0 ) |
| 5905 | { |
| 5906 | CUR.zp1.org[point].x = CUR.zp0.org[CUR.GS.rp0].x + |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 5907 | TT_MulFix14( cvt_dist, CUR.GS.freeVector.x ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5908 | |
| 5909 | CUR.zp1.org[point].y = CUR.zp0.org[CUR.GS.rp0].y + |
David Turner | 4b29d58 | 2002-03-25 17:02:26 +0000 | [diff] [blame] | 5910 | TT_MulFix14( cvt_dist, CUR.GS.freeVector.y ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5911 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 5912 | CUR.zp1.cur[point] = CUR.zp0.cur[point]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5913 | } |
| 5914 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 5915 | org_dist = CUR_Func_dualproj( &CUR.zp1.org[point], |
| 5916 | &CUR.zp0.org[CUR.GS.rp0] ); |
| 5917 | cur_dist = CUR_Func_project ( &CUR.zp1.cur[point], |
| 5918 | &CUR.zp0.cur[CUR.GS.rp0] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5919 | |
| 5920 | /* auto-flip test */ |
| 5921 | |
| 5922 | if ( CUR.GS.auto_flip ) |
| 5923 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5924 | if ( ( org_dist ^ cvt_dist ) < 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5925 | cvt_dist = -cvt_dist; |
| 5926 | } |
| 5927 | |
| 5928 | /* control value cutin and round */ |
| 5929 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5930 | if ( ( CUR.opcode & 4 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5931 | { |
| 5932 | /* XXX: UNDOCUMENTED! Only perform cut-in test when both points */ |
| 5933 | /* refer to the same zone. */ |
| 5934 | |
| 5935 | if ( CUR.GS.gep0 == CUR.GS.gep1 ) |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 5936 | if ( FT_ABS( cvt_dist - org_dist ) >= CUR.GS.control_value_cutin ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5937 | cvt_dist = org_dist; |
| 5938 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5939 | distance = CUR_Func_round( |
| 5940 | cvt_dist, |
| 5941 | CUR.tt_metrics.compensations[CUR.opcode & 3] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5942 | } |
| 5943 | else |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5944 | distance = ROUND_None( |
| 5945 | cvt_dist, |
| 5946 | CUR.tt_metrics.compensations[CUR.opcode & 3] ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5947 | |
| 5948 | /* minimum distance test */ |
| 5949 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5950 | if ( ( CUR.opcode & 8 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5951 | { |
| 5952 | if ( org_dist >= 0 ) |
| 5953 | { |
| 5954 | if ( distance < CUR.GS.minimum_distance ) |
| 5955 | distance = CUR.GS.minimum_distance; |
| 5956 | } |
| 5957 | else |
| 5958 | { |
| 5959 | if ( distance > -CUR.GS.minimum_distance ) |
| 5960 | distance = -CUR.GS.minimum_distance; |
| 5961 | } |
| 5962 | } |
| 5963 | |
| 5964 | CUR_Func_move( &CUR.zp1, point, distance - cur_dist ); |
| 5965 | |
| 5966 | CUR.GS.rp1 = CUR.GS.rp0; |
| 5967 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5968 | if ( ( CUR.opcode & 16 ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5969 | CUR.GS.rp0 = point; |
| 5970 | |
| 5971 | /* XXX: UNDOCUMENTED! */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5972 | CUR.GS.rp2 = point; |
| 5973 | } |
| 5974 | |
| 5975 | |
| 5976 | /*************************************************************************/ |
| 5977 | /* */ |
| 5978 | /* ALIGNRP[]: ALIGN Relative Point */ |
| 5979 | /* Opcode range: 0x3C */ |
| 5980 | /* Stack: uint32 uint32... --> */ |
| 5981 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 5982 | static void |
| 5983 | Ins_ALIGNRP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5984 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 5985 | FT_UShort point; |
| 5986 | FT_F26Dot6 distance; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5987 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 5988 | FT_UNUSED_ARG; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5989 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 5990 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 5991 | if ( CUR.top < CUR.GS.loop || |
| 5992 | BOUNDS( CUR.GS.rp0, CUR.zp0.n_points ) ) |
| 5993 | { |
| 5994 | if ( CUR.pedantic_hinting ) |
| 5995 | CUR.error = TT_Err_Invalid_Reference; |
| 5996 | return; |
| 5997 | } |
| 5998 | |
| 5999 | while ( CUR.GS.loop > 0 ) |
| 6000 | { |
| 6001 | CUR.args--; |
| 6002 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6003 | point = (FT_UShort)CUR.stack[CUR.args]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6004 | |
| 6005 | if ( BOUNDS( point, CUR.zp1.n_points ) ) |
| 6006 | { |
| 6007 | if ( CUR.pedantic_hinting ) |
| 6008 | { |
| 6009 | CUR.error = TT_Err_Invalid_Reference; |
| 6010 | return; |
| 6011 | } |
| 6012 | } |
| 6013 | else |
| 6014 | { |
| 6015 | distance = CUR_Func_project( CUR.zp1.cur + point, |
| 6016 | CUR.zp0.cur + CUR.GS.rp0 ); |
| 6017 | |
| 6018 | CUR_Func_move( &CUR.zp1, point, -distance ); |
| 6019 | } |
| 6020 | |
| 6021 | CUR.GS.loop--; |
| 6022 | } |
| 6023 | |
| 6024 | CUR.GS.loop = 1; |
| 6025 | CUR.new_top = CUR.args; |
| 6026 | } |
| 6027 | |
| 6028 | |
| 6029 | /*************************************************************************/ |
| 6030 | /* */ |
| 6031 | /* ISECT[]: moves point to InterSECTion */ |
| 6032 | /* Opcode range: 0x0F */ |
| 6033 | /* Stack: 5 * uint32 --> */ |
| 6034 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6035 | static void |
| 6036 | Ins_ISECT( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6037 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6038 | FT_UShort point, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6039 | a0, a1, |
| 6040 | b0, b1; |
| 6041 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6042 | FT_F26Dot6 discriminant; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6043 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6044 | FT_F26Dot6 dx, dy, |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6045 | dax, day, |
| 6046 | dbx, dby; |
| 6047 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6048 | FT_F26Dot6 val; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6049 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6050 | FT_Vector R; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6051 | |
| 6052 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6053 | point = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6054 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6055 | a0 = (FT_UShort)args[1]; |
| 6056 | a1 = (FT_UShort)args[2]; |
| 6057 | b0 = (FT_UShort)args[3]; |
| 6058 | b1 = (FT_UShort)args[4]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6059 | |
| 6060 | if ( BOUNDS( b0, CUR.zp0.n_points ) || |
| 6061 | BOUNDS( b1, CUR.zp0.n_points ) || |
| 6062 | BOUNDS( a0, CUR.zp1.n_points ) || |
| 6063 | BOUNDS( a1, CUR.zp1.n_points ) || |
| 6064 | BOUNDS( point, CUR.zp2.n_points ) ) |
| 6065 | { |
| 6066 | if ( CUR.pedantic_hinting ) |
| 6067 | CUR.error = TT_Err_Invalid_Reference; |
| 6068 | return; |
| 6069 | } |
| 6070 | |
| 6071 | dbx = CUR.zp0.cur[b1].x - CUR.zp0.cur[b0].x; |
| 6072 | dby = CUR.zp0.cur[b1].y - CUR.zp0.cur[b0].y; |
| 6073 | |
| 6074 | dax = CUR.zp1.cur[a1].x - CUR.zp1.cur[a0].x; |
| 6075 | day = CUR.zp1.cur[a1].y - CUR.zp1.cur[a0].y; |
| 6076 | |
| 6077 | dx = CUR.zp0.cur[b0].x - CUR.zp1.cur[a0].x; |
| 6078 | dy = CUR.zp0.cur[b0].y - CUR.zp1.cur[a0].y; |
| 6079 | |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 6080 | CUR.zp2.tags[point] |= FT_CURVE_TAG_TOUCH_BOTH; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6081 | |
| 6082 | discriminant = TT_MULDIV( dax, -dby, 0x40 ) + |
| 6083 | TT_MULDIV( day, dbx, 0x40 ); |
| 6084 | |
Werner Lemberg | dfa4619 | 2004-03-05 09:26:24 +0000 | [diff] [blame] | 6085 | if ( FT_ABS( discriminant ) >= 0x40 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6086 | { |
| 6087 | val = TT_MULDIV( dx, -dby, 0x40 ) + TT_MULDIV( dy, dbx, 0x40 ); |
| 6088 | |
| 6089 | R.x = TT_MULDIV( val, dax, discriminant ); |
| 6090 | R.y = TT_MULDIV( val, day, discriminant ); |
| 6091 | |
| 6092 | CUR.zp2.cur[point].x = CUR.zp1.cur[a0].x + R.x; |
| 6093 | CUR.zp2.cur[point].y = CUR.zp1.cur[a0].y + R.y; |
| 6094 | } |
| 6095 | else |
| 6096 | { |
| 6097 | /* else, take the middle of the middles of A and B */ |
| 6098 | |
| 6099 | CUR.zp2.cur[point].x = ( CUR.zp1.cur[a0].x + |
| 6100 | CUR.zp1.cur[a1].x + |
| 6101 | CUR.zp0.cur[b0].x + |
| 6102 | CUR.zp0.cur[b1].x ) / 4; |
| 6103 | CUR.zp2.cur[point].y = ( CUR.zp1.cur[a0].y + |
| 6104 | CUR.zp1.cur[a1].y + |
| 6105 | CUR.zp0.cur[b0].y + |
| 6106 | CUR.zp0.cur[b1].y ) / 4; |
| 6107 | } |
| 6108 | } |
| 6109 | |
| 6110 | |
| 6111 | /*************************************************************************/ |
| 6112 | /* */ |
| 6113 | /* ALIGNPTS[]: ALIGN PoinTS */ |
| 6114 | /* Opcode range: 0x27 */ |
| 6115 | /* Stack: uint32 uint32 --> */ |
| 6116 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6117 | static void |
| 6118 | Ins_ALIGNPTS( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6119 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6120 | FT_UShort p1, p2; |
| 6121 | FT_F26Dot6 distance; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6122 | |
| 6123 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6124 | p1 = (FT_UShort)args[0]; |
| 6125 | p2 = (FT_UShort)args[1]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6126 | |
| 6127 | if ( BOUNDS( args[0], CUR.zp1.n_points ) || |
| 6128 | BOUNDS( args[1], CUR.zp0.n_points ) ) |
| 6129 | { |
| 6130 | if ( CUR.pedantic_hinting ) |
| 6131 | CUR.error = TT_Err_Invalid_Reference; |
| 6132 | return; |
| 6133 | } |
| 6134 | |
| 6135 | distance = CUR_Func_project( CUR.zp0.cur + p2, |
| 6136 | CUR.zp1.cur + p1 ) / 2; |
| 6137 | |
| 6138 | CUR_Func_move( &CUR.zp1, p1, distance ); |
| 6139 | CUR_Func_move( &CUR.zp0, p2, -distance ); |
| 6140 | } |
| 6141 | |
| 6142 | |
| 6143 | /*************************************************************************/ |
| 6144 | /* */ |
| 6145 | /* IP[]: Interpolate Point */ |
| 6146 | /* Opcode range: 0x39 */ |
| 6147 | /* Stack: uint32... --> */ |
| 6148 | /* */ |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6149 | |
| 6150 | /* SOMETIMES, DUMBER CODE IS BETTER CODE */ |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6151 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6152 | static void |
| 6153 | Ins_IP( INS_ARG ) |
| 6154 | { |
| 6155 | FT_F26Dot6 old_range, cur_range; |
| 6156 | FT_Vector* orus_base; |
| 6157 | FT_Vector* cur_base; |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6158 | FT_Int twilight; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6159 | |
| 6160 | FT_UNUSED_ARG; |
| 6161 | |
| 6162 | |
| 6163 | if ( CUR.top < CUR.GS.loop ) |
| 6164 | { |
| 6165 | CUR.error = TT_Err_Invalid_Reference; |
| 6166 | return; |
| 6167 | } |
| 6168 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6169 | /* |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6170 | * We need to deal in a special way with the twilight zone. |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6171 | * Otherwise, by definition, the value of CUR.twilight.orus[n] is (0,0), |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6172 | * for every n. |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6173 | */ |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6174 | twilight = CUR.GS.gep0 == 0 || CUR.GS.gep1 == 0 || CUR.GS.gep2 == 0; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6175 | |
Werner Lemberg | e12ed56 | 2007-06-17 05:31:23 +0000 | [diff] [blame] | 6176 | if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) ) |
David Turner | 815911a | 2007-06-16 17:07:20 +0000 | [diff] [blame] | 6177 | { |
| 6178 | if ( CUR.pedantic_hinting ) |
| 6179 | CUR.error = TT_Err_Invalid_Reference; |
| 6180 | return; |
| 6181 | } |
| 6182 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6183 | if ( twilight ) |
| 6184 | orus_base = &CUR.zp0.org[CUR.GS.rp1]; |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6185 | else |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6186 | orus_base = &CUR.zp0.orus[CUR.GS.rp1]; |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6187 | |
| 6188 | cur_base = &CUR.zp0.cur[CUR.GS.rp1]; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6189 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6190 | /* XXX: There are some glyphs in some braindead but popular */ |
| 6191 | /* fonts out there (e.g. [aeu]grave in monotype.ttf) */ |
| 6192 | /* calling IP[] with bad values of rp[12]. */ |
| 6193 | /* Do something sane when this odd thing happens. */ |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6194 | if ( BOUNDS( CUR.GS.rp1, CUR.zp0.n_points ) || |
| 6195 | BOUNDS( CUR.GS.rp2, CUR.zp1.n_points ) ) |
| 6196 | { |
| 6197 | old_range = 0; |
| 6198 | cur_range = 0; |
| 6199 | } |
| 6200 | else |
| 6201 | { |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6202 | if ( twilight ) |
| 6203 | old_range = CUR_Func_dualproj( &CUR.zp1.org[CUR.GS.rp2], |
| 6204 | orus_base ); |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6205 | else |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6206 | old_range = CUR_Func_dualproj( &CUR.zp1.orus[CUR.GS.rp2], |
| 6207 | orus_base ); |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6208 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6209 | cur_range = CUR_Func_project ( &CUR.zp1.cur[CUR.GS.rp2], cur_base ); |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6210 | } |
| 6211 | |
| 6212 | for ( ; CUR.GS.loop > 0; --CUR.GS.loop ) |
| 6213 | { |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6214 | FT_UInt point = (FT_UInt)CUR.stack[--CUR.args]; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6215 | FT_F26Dot6 org_dist, cur_dist, new_dist; |
| 6216 | |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6217 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6218 | /* check point bounds */ |
| 6219 | if ( BOUNDS( point, CUR.zp2.n_points ) ) |
| 6220 | { |
| 6221 | if ( CUR.pedantic_hinting ) |
| 6222 | { |
| 6223 | CUR.error = TT_Err_Invalid_Reference; |
| 6224 | return; |
| 6225 | } |
| 6226 | continue; |
| 6227 | } |
| 6228 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6229 | if ( twilight ) |
David Turner | 89020d9 | 2007-03-17 17:48:57 +0000 | [diff] [blame] | 6230 | org_dist = CUR_Func_dualproj( &CUR.zp2.org[point], orus_base ); |
| 6231 | else |
| 6232 | org_dist = CUR_Func_dualproj( &CUR.zp2.orus[point], orus_base ); |
| 6233 | |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6234 | cur_dist = CUR_Func_project ( &CUR.zp2.cur[point], cur_base ); |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6235 | new_dist = ( old_range != 0 ) |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6236 | ? TT_MULDIV( org_dist, cur_range, old_range ) |
| 6237 | : cur_dist; |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6238 | |
Werner Lemberg | 94be20e | 2007-05-09 20:02:55 +0000 | [diff] [blame] | 6239 | CUR_Func_move( &CUR.zp2, (FT_UShort)point, new_dist - cur_dist ); |
David Turner | 2c4500e | 2007-02-14 15:08:47 +0000 | [diff] [blame] | 6240 | } |
| 6241 | CUR.GS.loop = 1; |
| 6242 | CUR.new_top = CUR.args; |
| 6243 | } |
Werner Lemberg | 3cd6cc2 | 2007-02-16 08:10:17 +0000 | [diff] [blame] | 6244 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6245 | |
| 6246 | /*************************************************************************/ |
| 6247 | /* */ |
| 6248 | /* UTP[a]: UnTouch Point */ |
| 6249 | /* Opcode range: 0x29 */ |
| 6250 | /* Stack: uint32 --> */ |
| 6251 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6252 | static void |
| 6253 | Ins_UTP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6254 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6255 | FT_UShort point; |
| 6256 | FT_Byte mask; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6257 | |
| 6258 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6259 | point = (FT_UShort)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6260 | |
| 6261 | if ( BOUNDS( point, CUR.zp0.n_points ) ) |
| 6262 | { |
| 6263 | if ( CUR.pedantic_hinting ) |
| 6264 | CUR.error = TT_Err_Invalid_Reference; |
| 6265 | return; |
| 6266 | } |
| 6267 | |
| 6268 | mask = 0xFF; |
| 6269 | |
| 6270 | if ( CUR.GS.freeVector.x != 0 ) |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 6271 | mask &= ~FT_CURVE_TAG_TOUCH_X; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6272 | |
| 6273 | if ( CUR.GS.freeVector.y != 0 ) |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 6274 | mask &= ~FT_CURVE_TAG_TOUCH_Y; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6275 | |
David Turner | 41dbcbf | 2000-03-09 11:46:25 +0000 | [diff] [blame] | 6276 | CUR.zp0.tags[point] &= mask; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6277 | } |
| 6278 | |
| 6279 | |
| 6280 | /* Local variables for Ins_IUP: */ |
Werner Lemberg | 2b0b422 | 2008-05-28 22:17:28 +0000 | [diff] [blame^] | 6281 | typedef struct IUP_WorkerRec_ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6282 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6283 | FT_Vector* orgs; /* original and current coordinate */ |
| 6284 | FT_Vector* curs; /* arrays */ |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6285 | FT_Vector* orus; |
David Turner | 815911a | 2007-06-16 17:07:20 +0000 | [diff] [blame] | 6286 | FT_UInt max_points; |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6287 | |
| 6288 | } IUP_WorkerRec, *IUP_Worker; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6289 | |
| 6290 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6291 | static void |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6292 | _iup_worker_shift( IUP_Worker worker, |
| 6293 | FT_UInt p1, |
| 6294 | FT_UInt p2, |
| 6295 | FT_UInt p ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6296 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6297 | FT_UInt i; |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6298 | FT_F26Dot6 dx; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6299 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6300 | |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6301 | dx = worker->curs[p].x - worker->orgs[p].x; |
| 6302 | if ( dx != 0 ) |
| 6303 | { |
| 6304 | for ( i = p1; i < p; i++ ) |
| 6305 | worker->curs[i].x += dx; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6306 | |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6307 | for ( i = p + 1; i <= p2; i++ ) |
| 6308 | worker->curs[i].x += dx; |
| 6309 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6310 | } |
| 6311 | |
| 6312 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6313 | static void |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6314 | _iup_worker_interpolate( IUP_Worker worker, |
| 6315 | FT_UInt p1, |
| 6316 | FT_UInt p2, |
| 6317 | FT_UInt ref1, |
| 6318 | FT_UInt ref2 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6319 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6320 | FT_UInt i; |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6321 | FT_F26Dot6 orus1, orus2, org1, org2, delta1, delta2; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6322 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6323 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6324 | if ( p1 > p2 ) |
| 6325 | return; |
| 6326 | |
Werner Lemberg | e12ed56 | 2007-06-17 05:31:23 +0000 | [diff] [blame] | 6327 | if ( BOUNDS( ref1, worker->max_points ) || |
| 6328 | BOUNDS( ref2, worker->max_points ) ) |
David Turner | 815911a | 2007-06-16 17:07:20 +0000 | [diff] [blame] | 6329 | return; |
| 6330 | |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6331 | orus1 = worker->orus[ref1].x; |
| 6332 | orus2 = worker->orus[ref2].x; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6333 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 6334 | if ( orus1 > orus2 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6335 | { |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6336 | FT_F26Dot6 tmp_o; |
| 6337 | FT_UInt tmp_r; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6338 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 6339 | |
| 6340 | tmp_o = orus1; |
| 6341 | orus1 = orus2; |
| 6342 | orus2 = tmp_o; |
| 6343 | |
| 6344 | tmp_r = ref1; |
| 6345 | ref1 = ref2; |
| 6346 | ref2 = tmp_r; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6347 | } |
| 6348 | |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6349 | org1 = worker->orgs[ref1].x; |
| 6350 | org2 = worker->orgs[ref2].x; |
| 6351 | delta1 = worker->curs[ref1].x - org1; |
| 6352 | delta2 = worker->curs[ref2].x - org2; |
| 6353 | |
| 6354 | if ( orus1 == orus2 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6355 | { |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6356 | /* simple shift of untouched points */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6357 | for ( i = p1; i <= p2; i++ ) |
| 6358 | { |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6359 | FT_F26Dot6 x = worker->orgs[i].x; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6360 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 6361 | |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6362 | if ( x <= org1 ) |
| 6363 | x += delta1; |
| 6364 | else |
| 6365 | x += delta2; |
| 6366 | |
| 6367 | worker->curs[i].x = x; |
| 6368 | } |
| 6369 | } |
| 6370 | else |
| 6371 | { |
| 6372 | FT_Fixed scale = 0; |
| 6373 | FT_Bool scale_valid = 0; |
| 6374 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 6375 | |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6376 | /* interpolation */ |
| 6377 | for ( i = p1; i <= p2; i++ ) |
| 6378 | { |
| 6379 | FT_F26Dot6 x = worker->orgs[i].x; |
| 6380 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 6381 | |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6382 | if ( x <= org1 ) |
| 6383 | x += delta1; |
| 6384 | |
| 6385 | else if ( x >= org2 ) |
| 6386 | x += delta2; |
| 6387 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6388 | else |
| 6389 | { |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6390 | if ( !scale_valid ) |
| 6391 | { |
| 6392 | scale_valid = 1; |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 6393 | scale = TT_MULDIV( org2 + delta2 - ( org1 + delta1 ), |
| 6394 | 0x10000, orus2 - orus1 ); |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6395 | } |
| 6396 | |
Werner Lemberg | 1234299 | 2006-08-19 11:18:09 +0000 | [diff] [blame] | 6397 | x = ( org1 + delta1 ) + |
| 6398 | TT_MULFIX( worker->orus[i].x - orus1, scale ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6399 | } |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6400 | worker->curs[i].x = x; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6401 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6402 | } |
| 6403 | } |
| 6404 | |
| 6405 | |
| 6406 | /*************************************************************************/ |
| 6407 | /* */ |
| 6408 | /* IUP[a]: Interpolate Untouched Points */ |
| 6409 | /* Opcode range: 0x30-0x31 */ |
| 6410 | /* Stack: --> */ |
| 6411 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6412 | static void |
| 6413 | Ins_IUP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6414 | { |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6415 | IUP_WorkerRec V; |
| 6416 | FT_Byte mask; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6417 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6418 | FT_UInt first_point; /* first point of contour */ |
| 6419 | FT_UInt end_point; /* end point (last+1) of contour */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6420 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6421 | FT_UInt first_touched; /* first touched point in contour */ |
| 6422 | FT_UInt cur_touched; /* current touched point in contour */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6423 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6424 | FT_UInt point; /* current point */ |
| 6425 | FT_Short contour; /* current contour */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6426 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 6427 | FT_UNUSED_ARG; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6428 | |
Werner Lemberg | e12ed56 | 2007-06-17 05:31:23 +0000 | [diff] [blame] | 6429 | |
David Turner | 815911a | 2007-06-16 17:07:20 +0000 | [diff] [blame] | 6430 | /* ignore empty outlines */ |
| 6431 | if ( CUR.pts.n_contours == 0 ) |
| 6432 | return; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6433 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6434 | if ( CUR.opcode & 1 ) |
| 6435 | { |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 6436 | mask = FT_CURVE_TAG_TOUCH_X; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6437 | V.orgs = CUR.pts.org; |
| 6438 | V.curs = CUR.pts.cur; |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6439 | V.orus = CUR.pts.orus; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6440 | } |
| 6441 | else |
| 6442 | { |
David Turner | b08fe2d | 2002-08-27 20:20:29 +0000 | [diff] [blame] | 6443 | mask = FT_CURVE_TAG_TOUCH_Y; |
David Turner | 43a2f65 | 2000-07-05 18:23:38 +0000 | [diff] [blame] | 6444 | V.orgs = (FT_Vector*)( (FT_Pos*)CUR.pts.org + 1 ); |
| 6445 | V.curs = (FT_Vector*)( (FT_Pos*)CUR.pts.cur + 1 ); |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6446 | V.orus = (FT_Vector*)( (FT_Pos*)CUR.pts.orus + 1 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6447 | } |
David Turner | 74cc0e9 | 2007-06-30 22:54:12 +0000 | [diff] [blame] | 6448 | V.max_points = CUR.pts.n_points; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6449 | |
| 6450 | contour = 0; |
| 6451 | point = 0; |
| 6452 | |
| 6453 | do |
| 6454 | { |
Werner Lemberg | a2da05c | 2006-06-25 06:27:27 +0000 | [diff] [blame] | 6455 | end_point = CUR.pts.contours[contour] - CUR.pts.first_point; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6456 | first_point = point; |
| 6457 | |
Werner Lemberg | 28464c4 | 2008-02-18 20:34:42 +0000 | [diff] [blame] | 6458 | if ( CUR.pts.n_points <= end_point ) |
| 6459 | end_point = CUR.pts.n_points; |
| 6460 | |
Werner Lemberg | c9f6c66 | 2007-03-21 13:30:14 +0000 | [diff] [blame] | 6461 | while ( point <= end_point && ( CUR.pts.tags[point] & mask ) == 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6462 | point++; |
| 6463 | |
| 6464 | if ( point <= end_point ) |
| 6465 | { |
| 6466 | first_touched = point; |
| 6467 | cur_touched = point; |
| 6468 | |
| 6469 | point++; |
| 6470 | |
| 6471 | while ( point <= end_point ) |
| 6472 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6473 | if ( ( CUR.pts.tags[point] & mask ) != 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6474 | { |
| 6475 | if ( point > 0 ) |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6476 | _iup_worker_interpolate( &V, |
| 6477 | cur_touched + 1, |
| 6478 | point - 1, |
| 6479 | cur_touched, |
| 6480 | point ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6481 | cur_touched = point; |
| 6482 | } |
| 6483 | |
| 6484 | point++; |
| 6485 | } |
| 6486 | |
| 6487 | if ( cur_touched == first_touched ) |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6488 | _iup_worker_shift( &V, first_point, end_point, cur_touched ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6489 | else |
| 6490 | { |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6491 | _iup_worker_interpolate( &V, |
| 6492 | (FT_UShort)( cur_touched + 1 ), |
| 6493 | end_point, |
| 6494 | cur_touched, |
| 6495 | first_touched ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6496 | |
| 6497 | if ( first_touched > 0 ) |
David Turner | 33f5f24 | 2006-08-16 16:50:55 +0000 | [diff] [blame] | 6498 | _iup_worker_interpolate( &V, |
| 6499 | first_point, |
| 6500 | first_touched - 1, |
| 6501 | cur_touched, |
| 6502 | first_touched ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6503 | } |
| 6504 | } |
| 6505 | contour++; |
| 6506 | } while ( contour < CUR.pts.n_contours ); |
| 6507 | } |
| 6508 | |
| 6509 | |
| 6510 | /*************************************************************************/ |
| 6511 | /* */ |
| 6512 | /* DELTAPn[]: DELTA exceptions P1, P2, P3 */ |
| 6513 | /* Opcode range: 0x5D,0x71,0x72 */ |
| 6514 | /* Stack: uint32 (2 * uint32)... --> */ |
| 6515 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6516 | static void |
| 6517 | Ins_DELTAP( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6518 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6519 | FT_ULong k, nump; |
| 6520 | FT_UShort A; |
| 6521 | FT_ULong C; |
| 6522 | FT_Long B; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6523 | |
Werner Lemberg | 82ee38e | 2006-11-20 09:19:26 +0000 | [diff] [blame] | 6524 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 6525 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 6526 | /* Delta hinting is covered by US Patent 5159668. */ |
| 6527 | if ( CUR.face->unpatented_hinting ) |
Werner Lemberg | 82ee38e | 2006-11-20 09:19:26 +0000 | [diff] [blame] | 6528 | { |
| 6529 | FT_Long n = args[0] * 2; |
| 6530 | |
| 6531 | |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 6532 | if ( CUR.args < n ) |
| 6533 | { |
| 6534 | CUR.error = TT_Err_Too_Few_Arguments; |
| 6535 | return; |
| 6536 | } |
| 6537 | |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 6538 | CUR.args -= n; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 6539 | CUR.new_top = CUR.args; |
| 6540 | return; |
| 6541 | } |
| 6542 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6543 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6544 | nump = (FT_ULong)args[0]; /* some points theoretically may occur more |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6545 | than once, thus UShort isn't enough */ |
| 6546 | |
| 6547 | for ( k = 1; k <= nump; k++ ) |
| 6548 | { |
| 6549 | if ( CUR.args < 2 ) |
| 6550 | { |
| 6551 | CUR.error = TT_Err_Too_Few_Arguments; |
| 6552 | return; |
| 6553 | } |
| 6554 | |
| 6555 | CUR.args -= 2; |
| 6556 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6557 | A = (FT_UShort)CUR.stack[CUR.args + 1]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6558 | B = CUR.stack[CUR.args]; |
| 6559 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6560 | /* XXX: Because some popular fonts contain some invalid DeltaP */ |
| 6561 | /* instructions, we simply ignore them when the stacked */ |
| 6562 | /* point reference is off limit, rather than returning an */ |
| 6563 | /* error. As a delta instruction doesn't change a glyph */ |
| 6564 | /* in great ways, this shouldn't be a problem. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6565 | |
| 6566 | if ( !BOUNDS( A, CUR.zp0.n_points ) ) |
| 6567 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6568 | C = ( (FT_ULong)B & 0xF0 ) >> 4; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6569 | |
| 6570 | switch ( CUR.opcode ) |
| 6571 | { |
| 6572 | case 0x5D: |
| 6573 | break; |
| 6574 | |
| 6575 | case 0x71: |
| 6576 | C += 16; |
| 6577 | break; |
| 6578 | |
| 6579 | case 0x72: |
| 6580 | C += 32; |
| 6581 | break; |
| 6582 | } |
| 6583 | |
| 6584 | C += CUR.GS.delta_base; |
| 6585 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6586 | if ( CURRENT_Ppem() == (FT_Long)C ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6587 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6588 | B = ( (FT_ULong)B & 0xF ) - 8; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6589 | if ( B >= 0 ) |
| 6590 | B++; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6591 | B = B * 64 / ( 1L << CUR.GS.delta_shift ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6592 | |
| 6593 | CUR_Func_move( &CUR.zp0, A, B ); |
| 6594 | } |
| 6595 | } |
| 6596 | else |
| 6597 | if ( CUR.pedantic_hinting ) |
| 6598 | CUR.error = TT_Err_Invalid_Reference; |
| 6599 | } |
| 6600 | |
| 6601 | CUR.new_top = CUR.args; |
| 6602 | } |
| 6603 | |
| 6604 | |
| 6605 | /*************************************************************************/ |
| 6606 | /* */ |
| 6607 | /* DELTACn[]: DELTA exceptions C1, C2, C3 */ |
| 6608 | /* Opcode range: 0x73,0x74,0x75 */ |
| 6609 | /* Stack: uint32 (2 * uint32)... --> */ |
| 6610 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6611 | static void |
| 6612 | Ins_DELTAC( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6613 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6614 | FT_ULong nump, k; |
| 6615 | FT_ULong A, C; |
| 6616 | FT_Long B; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6617 | |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 6618 | |
David Turner | 8b6db86 | 2003-08-17 22:09:14 +0000 | [diff] [blame] | 6619 | #ifdef TT_CONFIG_OPTION_UNPATENTED_HINTING |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 6620 | /* Delta hinting is covered by US Patent 5159668. */ |
| 6621 | if ( CUR.face->unpatented_hinting ) |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 6622 | { |
| 6623 | FT_Long n = args[0] * 2; |
| 6624 | |
| 6625 | |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 6626 | if ( CUR.args < n ) |
| 6627 | { |
| 6628 | CUR.error = TT_Err_Too_Few_Arguments; |
| 6629 | return; |
| 6630 | } |
| 6631 | |
Werner Lemberg | a3f4da8 | 2003-04-29 13:23:47 +0000 | [diff] [blame] | 6632 | CUR.args -= n; |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 6633 | CUR.new_top = CUR.args; |
| 6634 | return; |
| 6635 | } |
| 6636 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6637 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6638 | nump = (FT_ULong)args[0]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6639 | |
| 6640 | for ( k = 1; k <= nump; k++ ) |
| 6641 | { |
| 6642 | if ( CUR.args < 2 ) |
| 6643 | { |
| 6644 | CUR.error = TT_Err_Too_Few_Arguments; |
| 6645 | return; |
| 6646 | } |
| 6647 | |
| 6648 | CUR.args -= 2; |
| 6649 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6650 | A = (FT_ULong)CUR.stack[CUR.args + 1]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6651 | B = CUR.stack[CUR.args]; |
| 6652 | |
| 6653 | if ( BOUNDS( A, CUR.cvtSize ) ) |
| 6654 | { |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6655 | if ( CUR.pedantic_hinting ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6656 | { |
| 6657 | CUR.error = TT_Err_Invalid_Reference; |
| 6658 | return; |
| 6659 | } |
| 6660 | } |
| 6661 | else |
| 6662 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6663 | C = ( (FT_ULong)B & 0xF0 ) >> 4; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6664 | |
| 6665 | switch ( CUR.opcode ) |
| 6666 | { |
| 6667 | case 0x73: |
| 6668 | break; |
| 6669 | |
| 6670 | case 0x74: |
| 6671 | C += 16; |
| 6672 | break; |
| 6673 | |
| 6674 | case 0x75: |
| 6675 | C += 32; |
| 6676 | break; |
| 6677 | } |
| 6678 | |
| 6679 | C += CUR.GS.delta_base; |
| 6680 | |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6681 | if ( CURRENT_Ppem() == (FT_Long)C ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6682 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6683 | B = ( (FT_ULong)B & 0xF ) - 8; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6684 | if ( B >= 0 ) |
| 6685 | B++; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6686 | B = B * 64 / ( 1L << CUR.GS.delta_shift ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6687 | |
| 6688 | CUR_Func_move_cvt( A, B ); |
| 6689 | } |
| 6690 | } |
| 6691 | } |
| 6692 | |
| 6693 | CUR.new_top = CUR.args; |
| 6694 | } |
| 6695 | |
| 6696 | |
| 6697 | /*************************************************************************/ |
| 6698 | /* */ |
| 6699 | /* MISC. INSTRUCTIONS */ |
| 6700 | /* */ |
| 6701 | /*************************************************************************/ |
| 6702 | |
| 6703 | |
| 6704 | /*************************************************************************/ |
| 6705 | /* */ |
| 6706 | /* GETINFO[]: GET INFOrmation */ |
| 6707 | /* Opcode range: 0x88 */ |
| 6708 | /* Stack: uint32 --> uint32 */ |
| 6709 | /* */ |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6710 | static void |
| 6711 | Ins_GETINFO( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6712 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 6713 | FT_Long K; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6714 | |
| 6715 | |
| 6716 | K = 0; |
| 6717 | |
Werner Lemberg | dea712b | 2004-08-07 15:08:33 +0000 | [diff] [blame] | 6718 | /* We return MS rasterizer version 1.7 for the font scaler. */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6719 | if ( ( args[0] & 1 ) != 0 ) |
Werner Lemberg | dea712b | 2004-08-07 15:08:33 +0000 | [diff] [blame] | 6720 | K = 35; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6721 | |
Werner Lemberg | dea712b | 2004-08-07 15:08:33 +0000 | [diff] [blame] | 6722 | /* Has the glyph been rotated? */ |
| 6723 | if ( ( args[0] & 2 ) != 0 && CUR.tt_metrics.rotated ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6724 | K |= 0x80; |
| 6725 | |
Werner Lemberg | dea712b | 2004-08-07 15:08:33 +0000 | [diff] [blame] | 6726 | /* Has the glyph been stretched? */ |
| 6727 | if ( ( args[0] & 4 ) != 0 && CUR.tt_metrics.stretched ) |
| 6728 | K |= 1 << 8; |
| 6729 | |
| 6730 | /* Are we hinting for grayscale? */ |
| 6731 | if ( ( args[0] & 32 ) != 0 && CUR.grayscale ) |
Werner Lemberg | 2bad8ff | 2006-11-22 09:37:03 +0000 | [diff] [blame] | 6732 | K |= 1 << 12; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6733 | |
| 6734 | args[0] = K; |
| 6735 | } |
| 6736 | |
| 6737 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 6738 | static void |
| 6739 | Ins_UNKNOWN( INS_ARG ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6740 | { |
| 6741 | TT_DefRecord* def = CUR.IDefs; |
| 6742 | TT_DefRecord* limit = def + CUR.numIDefs; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 6743 | |
David Turner | c6a9220 | 2000-07-04 18:12:13 +0000 | [diff] [blame] | 6744 | FT_UNUSED_ARG; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 6745 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6746 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6747 | for ( ; def < limit; def++ ) |
| 6748 | { |
David Turner | b1aabf4 | 2000-11-30 23:48:22 +0000 | [diff] [blame] | 6749 | if ( (FT_Byte)def->opc == CUR.opcode && def->active ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6750 | { |
| 6751 | TT_CallRec* call; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 6752 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6753 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6754 | if ( CUR.callTop >= CUR.callSize ) |
| 6755 | { |
| 6756 | CUR.error = TT_Err_Stack_Overflow; |
| 6757 | return; |
| 6758 | } |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 6759 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6760 | call = CUR.callStack + CUR.callTop++; |
| 6761 | |
| 6762 | call->Caller_Range = CUR.curRange; |
| 6763 | call->Caller_IP = CUR.IP+1; |
| 6764 | call->Cur_Count = 1; |
| 6765 | call->Cur_Restart = def->start; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 6766 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6767 | INS_Goto_CodeRange( def->range, def->start ); |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 6768 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6769 | CUR.step_ins = FALSE; |
| 6770 | return; |
| 6771 | } |
| 6772 | } |
| 6773 | |
| 6774 | CUR.error = TT_Err_Invalid_Opcode; |
| 6775 | } |
| 6776 | |
| 6777 | |
| 6778 | #ifndef TT_CONFIG_OPTION_INTERPRETER_SWITCH |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 6779 | |
| 6780 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 6781 | static |
| 6782 | TInstruction_Function Instruct_Dispatch[256] = |
| 6783 | { |
| 6784 | /* Opcodes are gathered in groups of 16. */ |
| 6785 | /* Please keep the spaces as they are. */ |
| 6786 | |
| 6787 | /* SVTCA y */ Ins_SVTCA, |
| 6788 | /* SVTCA x */ Ins_SVTCA, |
| 6789 | /* SPvTCA y */ Ins_SPVTCA, |
| 6790 | /* SPvTCA x */ Ins_SPVTCA, |
| 6791 | /* SFvTCA y */ Ins_SFVTCA, |
| 6792 | /* SFvTCA x */ Ins_SFVTCA, |
| 6793 | /* SPvTL // */ Ins_SPVTL, |
| 6794 | /* SPvTL + */ Ins_SPVTL, |
| 6795 | /* SFvTL // */ Ins_SFVTL, |
| 6796 | /* SFvTL + */ Ins_SFVTL, |
| 6797 | /* SPvFS */ Ins_SPVFS, |
| 6798 | /* SFvFS */ Ins_SFVFS, |
| 6799 | /* GPV */ Ins_GPV, |
| 6800 | /* GFV */ Ins_GFV, |
| 6801 | /* SFvTPv */ Ins_SFVTPV, |
| 6802 | /* ISECT */ Ins_ISECT, |
| 6803 | |
| 6804 | /* SRP0 */ Ins_SRP0, |
| 6805 | /* SRP1 */ Ins_SRP1, |
| 6806 | /* SRP2 */ Ins_SRP2, |
| 6807 | /* SZP0 */ Ins_SZP0, |
| 6808 | /* SZP1 */ Ins_SZP1, |
| 6809 | /* SZP2 */ Ins_SZP2, |
| 6810 | /* SZPS */ Ins_SZPS, |
| 6811 | /* SLOOP */ Ins_SLOOP, |
| 6812 | /* RTG */ Ins_RTG, |
| 6813 | /* RTHG */ Ins_RTHG, |
| 6814 | /* SMD */ Ins_SMD, |
| 6815 | /* ELSE */ Ins_ELSE, |
| 6816 | /* JMPR */ Ins_JMPR, |
| 6817 | /* SCvTCi */ Ins_SCVTCI, |
| 6818 | /* SSwCi */ Ins_SSWCI, |
| 6819 | /* SSW */ Ins_SSW, |
| 6820 | |
| 6821 | /* DUP */ Ins_DUP, |
| 6822 | /* POP */ Ins_POP, |
| 6823 | /* CLEAR */ Ins_CLEAR, |
| 6824 | /* SWAP */ Ins_SWAP, |
| 6825 | /* DEPTH */ Ins_DEPTH, |
| 6826 | /* CINDEX */ Ins_CINDEX, |
| 6827 | /* MINDEX */ Ins_MINDEX, |
| 6828 | /* AlignPTS */ Ins_ALIGNPTS, |
| 6829 | /* INS_0x28 */ Ins_UNKNOWN, |
| 6830 | /* UTP */ Ins_UTP, |
| 6831 | /* LOOPCALL */ Ins_LOOPCALL, |
| 6832 | /* CALL */ Ins_CALL, |
| 6833 | /* FDEF */ Ins_FDEF, |
| 6834 | /* ENDF */ Ins_ENDF, |
| 6835 | /* MDAP[0] */ Ins_MDAP, |
| 6836 | /* MDAP[1] */ Ins_MDAP, |
| 6837 | |
| 6838 | /* IUP[0] */ Ins_IUP, |
| 6839 | /* IUP[1] */ Ins_IUP, |
| 6840 | /* SHP[0] */ Ins_SHP, |
| 6841 | /* SHP[1] */ Ins_SHP, |
| 6842 | /* SHC[0] */ Ins_SHC, |
| 6843 | /* SHC[1] */ Ins_SHC, |
| 6844 | /* SHZ[0] */ Ins_SHZ, |
| 6845 | /* SHZ[1] */ Ins_SHZ, |
| 6846 | /* SHPIX */ Ins_SHPIX, |
| 6847 | /* IP */ Ins_IP, |
| 6848 | /* MSIRP[0] */ Ins_MSIRP, |
| 6849 | /* MSIRP[1] */ Ins_MSIRP, |
| 6850 | /* AlignRP */ Ins_ALIGNRP, |
| 6851 | /* RTDG */ Ins_RTDG, |
| 6852 | /* MIAP[0] */ Ins_MIAP, |
| 6853 | /* MIAP[1] */ Ins_MIAP, |
| 6854 | |
| 6855 | /* NPushB */ Ins_NPUSHB, |
| 6856 | /* NPushW */ Ins_NPUSHW, |
| 6857 | /* WS */ Ins_WS, |
| 6858 | /* RS */ Ins_RS, |
| 6859 | /* WCvtP */ Ins_WCVTP, |
| 6860 | /* RCvt */ Ins_RCVT, |
| 6861 | /* GC[0] */ Ins_GC, |
| 6862 | /* GC[1] */ Ins_GC, |
| 6863 | /* SCFS */ Ins_SCFS, |
| 6864 | /* MD[0] */ Ins_MD, |
| 6865 | /* MD[1] */ Ins_MD, |
| 6866 | /* MPPEM */ Ins_MPPEM, |
| 6867 | /* MPS */ Ins_MPS, |
| 6868 | /* FlipON */ Ins_FLIPON, |
| 6869 | /* FlipOFF */ Ins_FLIPOFF, |
| 6870 | /* DEBUG */ Ins_DEBUG, |
| 6871 | |
| 6872 | /* LT */ Ins_LT, |
| 6873 | /* LTEQ */ Ins_LTEQ, |
| 6874 | /* GT */ Ins_GT, |
| 6875 | /* GTEQ */ Ins_GTEQ, |
| 6876 | /* EQ */ Ins_EQ, |
| 6877 | /* NEQ */ Ins_NEQ, |
| 6878 | /* ODD */ Ins_ODD, |
| 6879 | /* EVEN */ Ins_EVEN, |
| 6880 | /* IF */ Ins_IF, |
| 6881 | /* EIF */ Ins_EIF, |
| 6882 | /* AND */ Ins_AND, |
| 6883 | /* OR */ Ins_OR, |
| 6884 | /* NOT */ Ins_NOT, |
| 6885 | /* DeltaP1 */ Ins_DELTAP, |
| 6886 | /* SDB */ Ins_SDB, |
| 6887 | /* SDS */ Ins_SDS, |
| 6888 | |
| 6889 | /* ADD */ Ins_ADD, |
| 6890 | /* SUB */ Ins_SUB, |
| 6891 | /* DIV */ Ins_DIV, |
| 6892 | /* MUL */ Ins_MUL, |
| 6893 | /* ABS */ Ins_ABS, |
| 6894 | /* NEG */ Ins_NEG, |
| 6895 | /* FLOOR */ Ins_FLOOR, |
| 6896 | /* CEILING */ Ins_CEILING, |
| 6897 | /* ROUND[0] */ Ins_ROUND, |
| 6898 | /* ROUND[1] */ Ins_ROUND, |
| 6899 | /* ROUND[2] */ Ins_ROUND, |
| 6900 | /* ROUND[3] */ Ins_ROUND, |
| 6901 | /* NROUND[0] */ Ins_NROUND, |
| 6902 | /* NROUND[1] */ Ins_NROUND, |
| 6903 | /* NROUND[2] */ Ins_NROUND, |
| 6904 | /* NROUND[3] */ Ins_NROUND, |
| 6905 | |
| 6906 | /* WCvtF */ Ins_WCVTF, |
| 6907 | /* DeltaP2 */ Ins_DELTAP, |
| 6908 | /* DeltaP3 */ Ins_DELTAP, |
| 6909 | /* DeltaCn[0] */ Ins_DELTAC, |
| 6910 | /* DeltaCn[1] */ Ins_DELTAC, |
| 6911 | /* DeltaCn[2] */ Ins_DELTAC, |
| 6912 | /* SROUND */ Ins_SROUND, |
| 6913 | /* S45Round */ Ins_S45ROUND, |
| 6914 | /* JROT */ Ins_JROT, |
| 6915 | /* JROF */ Ins_JROF, |
| 6916 | /* ROFF */ Ins_ROFF, |
| 6917 | /* INS_0x7B */ Ins_UNKNOWN, |
| 6918 | /* RUTG */ Ins_RUTG, |
| 6919 | /* RDTG */ Ins_RDTG, |
| 6920 | /* SANGW */ Ins_SANGW, |
| 6921 | /* AA */ Ins_AA, |
| 6922 | |
| 6923 | /* FlipPT */ Ins_FLIPPT, |
| 6924 | /* FlipRgON */ Ins_FLIPRGON, |
| 6925 | /* FlipRgOFF */ Ins_FLIPRGOFF, |
| 6926 | /* INS_0x83 */ Ins_UNKNOWN, |
| 6927 | /* INS_0x84 */ Ins_UNKNOWN, |
| 6928 | /* ScanCTRL */ Ins_SCANCTRL, |
| 6929 | /* SDPVTL[0] */ Ins_SDPVTL, |
| 6930 | /* SDPVTL[1] */ Ins_SDPVTL, |
| 6931 | /* GetINFO */ Ins_GETINFO, |
| 6932 | /* IDEF */ Ins_IDEF, |
| 6933 | /* ROLL */ Ins_ROLL, |
| 6934 | /* MAX */ Ins_MAX, |
| 6935 | /* MIN */ Ins_MIN, |
| 6936 | /* ScanTYPE */ Ins_SCANTYPE, |
| 6937 | /* InstCTRL */ Ins_INSTCTRL, |
| 6938 | /* INS_0x8F */ Ins_UNKNOWN, |
| 6939 | |
| 6940 | /* INS_0x90 */ Ins_UNKNOWN, |
| 6941 | /* INS_0x91 */ Ins_UNKNOWN, |
| 6942 | /* INS_0x92 */ Ins_UNKNOWN, |
| 6943 | /* INS_0x93 */ Ins_UNKNOWN, |
| 6944 | /* INS_0x94 */ Ins_UNKNOWN, |
| 6945 | /* INS_0x95 */ Ins_UNKNOWN, |
| 6946 | /* INS_0x96 */ Ins_UNKNOWN, |
| 6947 | /* INS_0x97 */ Ins_UNKNOWN, |
| 6948 | /* INS_0x98 */ Ins_UNKNOWN, |
| 6949 | /* INS_0x99 */ Ins_UNKNOWN, |
| 6950 | /* INS_0x9A */ Ins_UNKNOWN, |
| 6951 | /* INS_0x9B */ Ins_UNKNOWN, |
| 6952 | /* INS_0x9C */ Ins_UNKNOWN, |
| 6953 | /* INS_0x9D */ Ins_UNKNOWN, |
| 6954 | /* INS_0x9E */ Ins_UNKNOWN, |
| 6955 | /* INS_0x9F */ Ins_UNKNOWN, |
| 6956 | |
| 6957 | /* INS_0xA0 */ Ins_UNKNOWN, |
| 6958 | /* INS_0xA1 */ Ins_UNKNOWN, |
| 6959 | /* INS_0xA2 */ Ins_UNKNOWN, |
| 6960 | /* INS_0xA3 */ Ins_UNKNOWN, |
| 6961 | /* INS_0xA4 */ Ins_UNKNOWN, |
| 6962 | /* INS_0xA5 */ Ins_UNKNOWN, |
| 6963 | /* INS_0xA6 */ Ins_UNKNOWN, |
| 6964 | /* INS_0xA7 */ Ins_UNKNOWN, |
| 6965 | /* INS_0xA8 */ Ins_UNKNOWN, |
| 6966 | /* INS_0xA9 */ Ins_UNKNOWN, |
| 6967 | /* INS_0xAA */ Ins_UNKNOWN, |
| 6968 | /* INS_0xAB */ Ins_UNKNOWN, |
| 6969 | /* INS_0xAC */ Ins_UNKNOWN, |
| 6970 | /* INS_0xAD */ Ins_UNKNOWN, |
| 6971 | /* INS_0xAE */ Ins_UNKNOWN, |
| 6972 | /* INS_0xAF */ Ins_UNKNOWN, |
| 6973 | |
| 6974 | /* PushB[0] */ Ins_PUSHB, |
| 6975 | /* PushB[1] */ Ins_PUSHB, |
| 6976 | /* PushB[2] */ Ins_PUSHB, |
| 6977 | /* PushB[3] */ Ins_PUSHB, |
| 6978 | /* PushB[4] */ Ins_PUSHB, |
| 6979 | /* PushB[5] */ Ins_PUSHB, |
| 6980 | /* PushB[6] */ Ins_PUSHB, |
| 6981 | /* PushB[7] */ Ins_PUSHB, |
| 6982 | /* PushW[0] */ Ins_PUSHW, |
| 6983 | /* PushW[1] */ Ins_PUSHW, |
| 6984 | /* PushW[2] */ Ins_PUSHW, |
| 6985 | /* PushW[3] */ Ins_PUSHW, |
| 6986 | /* PushW[4] */ Ins_PUSHW, |
| 6987 | /* PushW[5] */ Ins_PUSHW, |
| 6988 | /* PushW[6] */ Ins_PUSHW, |
| 6989 | /* PushW[7] */ Ins_PUSHW, |
| 6990 | |
| 6991 | /* MDRP[00] */ Ins_MDRP, |
| 6992 | /* MDRP[01] */ Ins_MDRP, |
| 6993 | /* MDRP[02] */ Ins_MDRP, |
| 6994 | /* MDRP[03] */ Ins_MDRP, |
| 6995 | /* MDRP[04] */ Ins_MDRP, |
| 6996 | /* MDRP[05] */ Ins_MDRP, |
| 6997 | /* MDRP[06] */ Ins_MDRP, |
| 6998 | /* MDRP[07] */ Ins_MDRP, |
| 6999 | /* MDRP[08] */ Ins_MDRP, |
| 7000 | /* MDRP[09] */ Ins_MDRP, |
| 7001 | /* MDRP[10] */ Ins_MDRP, |
| 7002 | /* MDRP[11] */ Ins_MDRP, |
| 7003 | /* MDRP[12] */ Ins_MDRP, |
| 7004 | /* MDRP[13] */ Ins_MDRP, |
| 7005 | /* MDRP[14] */ Ins_MDRP, |
| 7006 | /* MDRP[15] */ Ins_MDRP, |
| 7007 | |
| 7008 | /* MDRP[16] */ Ins_MDRP, |
| 7009 | /* MDRP[17] */ Ins_MDRP, |
| 7010 | /* MDRP[18] */ Ins_MDRP, |
| 7011 | /* MDRP[19] */ Ins_MDRP, |
| 7012 | /* MDRP[20] */ Ins_MDRP, |
| 7013 | /* MDRP[21] */ Ins_MDRP, |
| 7014 | /* MDRP[22] */ Ins_MDRP, |
| 7015 | /* MDRP[23] */ Ins_MDRP, |
| 7016 | /* MDRP[24] */ Ins_MDRP, |
| 7017 | /* MDRP[25] */ Ins_MDRP, |
| 7018 | /* MDRP[26] */ Ins_MDRP, |
| 7019 | /* MDRP[27] */ Ins_MDRP, |
| 7020 | /* MDRP[28] */ Ins_MDRP, |
| 7021 | /* MDRP[29] */ Ins_MDRP, |
| 7022 | /* MDRP[30] */ Ins_MDRP, |
| 7023 | /* MDRP[31] */ Ins_MDRP, |
| 7024 | |
| 7025 | /* MIRP[00] */ Ins_MIRP, |
| 7026 | /* MIRP[01] */ Ins_MIRP, |
| 7027 | /* MIRP[02] */ Ins_MIRP, |
| 7028 | /* MIRP[03] */ Ins_MIRP, |
| 7029 | /* MIRP[04] */ Ins_MIRP, |
| 7030 | /* MIRP[05] */ Ins_MIRP, |
| 7031 | /* MIRP[06] */ Ins_MIRP, |
| 7032 | /* MIRP[07] */ Ins_MIRP, |
| 7033 | /* MIRP[08] */ Ins_MIRP, |
| 7034 | /* MIRP[09] */ Ins_MIRP, |
| 7035 | /* MIRP[10] */ Ins_MIRP, |
| 7036 | /* MIRP[11] */ Ins_MIRP, |
| 7037 | /* MIRP[12] */ Ins_MIRP, |
| 7038 | /* MIRP[13] */ Ins_MIRP, |
| 7039 | /* MIRP[14] */ Ins_MIRP, |
| 7040 | /* MIRP[15] */ Ins_MIRP, |
| 7041 | |
| 7042 | /* MIRP[16] */ Ins_MIRP, |
| 7043 | /* MIRP[17] */ Ins_MIRP, |
| 7044 | /* MIRP[18] */ Ins_MIRP, |
| 7045 | /* MIRP[19] */ Ins_MIRP, |
| 7046 | /* MIRP[20] */ Ins_MIRP, |
| 7047 | /* MIRP[21] */ Ins_MIRP, |
| 7048 | /* MIRP[22] */ Ins_MIRP, |
| 7049 | /* MIRP[23] */ Ins_MIRP, |
| 7050 | /* MIRP[24] */ Ins_MIRP, |
| 7051 | /* MIRP[25] */ Ins_MIRP, |
| 7052 | /* MIRP[26] */ Ins_MIRP, |
| 7053 | /* MIRP[27] */ Ins_MIRP, |
| 7054 | /* MIRP[28] */ Ins_MIRP, |
| 7055 | /* MIRP[29] */ Ins_MIRP, |
| 7056 | /* MIRP[30] */ Ins_MIRP, |
| 7057 | /* MIRP[31] */ Ins_MIRP |
| 7058 | }; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7059 | |
| 7060 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7061 | #endif /* !TT_CONFIG_OPTION_INTERPRETER_SWITCH */ |
| 7062 | |
| 7063 | |
| 7064 | /*************************************************************************/ |
| 7065 | /* */ |
| 7066 | /* RUN */ |
| 7067 | /* */ |
| 7068 | /* This function executes a run of opcodes. It will exit in the */ |
| 7069 | /* following cases: */ |
| 7070 | /* */ |
| 7071 | /* - Errors (in which case it returns FALSE). */ |
| 7072 | /* */ |
| 7073 | /* - Reaching the end of the main code range (returns TRUE). */ |
| 7074 | /* Reaching the end of a code range within a function call is an */ |
| 7075 | /* error. */ |
| 7076 | /* */ |
| 7077 | /* - After executing one single opcode, if the flag `Instruction_Trap' */ |
| 7078 | /* is set to TRUE (returns TRUE). */ |
| 7079 | /* */ |
Werner Lemberg | 6e87ed9 | 2007-01-26 22:18:56 +0000 | [diff] [blame] | 7080 | /* On exit with TRUE, test IP < CodeSize to know whether it comes from */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7081 | /* an instruction trap or a normal termination. */ |
| 7082 | /* */ |
| 7083 | /* */ |
| 7084 | /* Note: The documented DEBUG opcode pops a value from the stack. This */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7085 | /* behaviour is unsupported; here a DEBUG opcode is always an */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7086 | /* error. */ |
| 7087 | /* */ |
| 7088 | /* */ |
| 7089 | /* THIS IS THE INTERPRETER'S MAIN LOOP. */ |
| 7090 | /* */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7091 | /* Instructions appear in the specification's order. */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7092 | /* */ |
| 7093 | /*************************************************************************/ |
| 7094 | |
| 7095 | |
Werner Lemberg | 90a0330 | 2000-11-07 17:21:11 +0000 | [diff] [blame] | 7096 | /* documentation is in ttinterp.h */ |
| 7097 | |
Werner Lemberg | 4a2305c | 2001-06-28 07:17:51 +0000 | [diff] [blame] | 7098 | FT_EXPORT_DEF( FT_Error ) |
| 7099 | TT_RunIns( TT_ExecContext exc ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7100 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 7101 | FT_Long ins_counter = 0; /* executed instructions counter */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7102 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7103 | |
| 7104 | #ifdef TT_CONFIG_OPTION_STATIC_RASTER |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7105 | cur = *exc; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7106 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7107 | |
| 7108 | /* set CVT functions */ |
| 7109 | CUR.tt_metrics.ratio = 0; |
| 7110 | if ( CUR.metrics.x_ppem != CUR.metrics.y_ppem ) |
| 7111 | { |
| 7112 | /* non-square pixels, use the stretched routines */ |
| 7113 | CUR.func_read_cvt = Read_CVT_Stretched; |
| 7114 | CUR.func_write_cvt = Write_CVT_Stretched; |
| 7115 | CUR.func_move_cvt = Move_CVT_Stretched; |
| 7116 | } |
| 7117 | else |
| 7118 | { |
| 7119 | /* square pixels, use normal routines */ |
| 7120 | CUR.func_read_cvt = Read_CVT; |
| 7121 | CUR.func_write_cvt = Write_CVT; |
| 7122 | CUR.func_move_cvt = Move_CVT; |
| 7123 | } |
| 7124 | |
| 7125 | COMPUTE_Funcs(); |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 7126 | COMPUTE_Round( (FT_Byte)exc->GS.round_state ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7127 | |
| 7128 | do |
| 7129 | { |
| 7130 | CUR.opcode = CUR.code[CUR.IP]; |
| 7131 | |
| 7132 | if ( ( CUR.length = opcode_length[CUR.opcode] ) < 0 ) |
| 7133 | { |
| 7134 | if ( CUR.IP + 1 > CUR.codeSize ) |
| 7135 | goto LErrorCodeOverflow_; |
| 7136 | |
Werner Lemberg | 33febc0 | 2004-10-09 07:07:43 +0000 | [diff] [blame] | 7137 | CUR.length = 2 - CUR.length * CUR.code[CUR.IP + 1]; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7138 | } |
| 7139 | |
| 7140 | if ( CUR.IP + CUR.length > CUR.codeSize ) |
| 7141 | goto LErrorCodeOverflow_; |
| 7142 | |
| 7143 | /* First, let's check for empty stack and overflow */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7144 | CUR.args = CUR.top - ( Pop_Push_Count[CUR.opcode] >> 4 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7145 | |
| 7146 | /* `args' is the top of the stack once arguments have been popped. */ |
| 7147 | /* One can also interpret it as the index of the last argument. */ |
| 7148 | if ( CUR.args < 0 ) |
| 7149 | { |
| 7150 | CUR.error = TT_Err_Too_Few_Arguments; |
| 7151 | goto LErrorLabel_; |
| 7152 | } |
| 7153 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7154 | CUR.new_top = CUR.args + ( Pop_Push_Count[CUR.opcode] & 15 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7155 | |
| 7156 | /* `new_top' is the new top of the stack, after the instruction's */ |
| 7157 | /* execution. `top' will be set to `new_top' after the `switch' */ |
| 7158 | /* statement. */ |
| 7159 | if ( CUR.new_top > CUR.stackSize ) |
| 7160 | { |
| 7161 | CUR.error = TT_Err_Stack_Overflow; |
| 7162 | goto LErrorLabel_; |
| 7163 | } |
| 7164 | |
| 7165 | CUR.step_ins = TRUE; |
| 7166 | CUR.error = TT_Err_Ok; |
| 7167 | |
| 7168 | #ifdef TT_CONFIG_OPTION_INTERPRETER_SWITCH |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7169 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7170 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 7171 | FT_Long* args = CUR.stack + CUR.args; |
| 7172 | FT_Byte opcode = CUR.opcode; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7173 | |
| 7174 | |
Werner Lemberg | 63408a1 | 2000-12-13 23:44:37 +0000 | [diff] [blame] | 7175 | #undef ARRAY_BOUND_ERROR |
| 7176 | #define ARRAY_BOUND_ERROR goto Set_Invalid_Ref |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7177 | |
| 7178 | |
| 7179 | switch ( opcode ) |
| 7180 | { |
| 7181 | case 0x00: /* SVTCA y */ |
| 7182 | case 0x01: /* SVTCA x */ |
| 7183 | case 0x02: /* SPvTCA y */ |
| 7184 | case 0x03: /* SPvTCA x */ |
| 7185 | case 0x04: /* SFvTCA y */ |
| 7186 | case 0x05: /* SFvTCA x */ |
| 7187 | { |
David Turner | f9b8dec | 2000-06-16 19:34:52 +0000 | [diff] [blame] | 7188 | FT_Short AA, BB; |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7189 | |
| 7190 | |
Werner Lemberg | 2b6248b | 2001-07-07 23:24:02 +0000 | [diff] [blame] | 7191 | AA = (FT_Short)( ( opcode & 1 ) << 14 ); |
David Turner | 3b7049f | 2001-07-07 16:12:14 +0000 | [diff] [blame] | 7192 | BB = (FT_Short)( AA ^ 0x4000 ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7193 | |
| 7194 | if ( opcode < 4 ) |
| 7195 | { |
| 7196 | CUR.GS.projVector.x = AA; |
| 7197 | CUR.GS.projVector.y = BB; |
| 7198 | |
| 7199 | CUR.GS.dualVector.x = AA; |
| 7200 | CUR.GS.dualVector.y = BB; |
| 7201 | } |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 7202 | else |
| 7203 | { |
| 7204 | GUESS_VECTOR( projVector ); |
| 7205 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7206 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7207 | if ( ( opcode & 2 ) == 0 ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7208 | { |
| 7209 | CUR.GS.freeVector.x = AA; |
| 7210 | CUR.GS.freeVector.y = BB; |
| 7211 | } |
Graham Asher | 3ea859f | 2003-04-25 11:40:46 +0000 | [diff] [blame] | 7212 | else |
| 7213 | { |
| 7214 | GUESS_VECTOR( freeVector ); |
| 7215 | } |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7216 | |
| 7217 | COMPUTE_Funcs(); |
| 7218 | } |
| 7219 | break; |
| 7220 | |
| 7221 | case 0x06: /* SPvTL // */ |
| 7222 | case 0x07: /* SPvTL + */ |
| 7223 | DO_SPVTL |
| 7224 | break; |
| 7225 | |
| 7226 | case 0x08: /* SFvTL // */ |
| 7227 | case 0x09: /* SFvTL + */ |
| 7228 | DO_SFVTL |
| 7229 | break; |
| 7230 | |
| 7231 | case 0x0A: /* SPvFS */ |
| 7232 | DO_SPVFS |
| 7233 | break; |
| 7234 | |
| 7235 | case 0x0B: /* SFvFS */ |
| 7236 | DO_SFVFS |
| 7237 | break; |
| 7238 | |
| 7239 | case 0x0C: /* GPV */ |
| 7240 | DO_GPV |
| 7241 | break; |
| 7242 | |
| 7243 | case 0x0D: /* GFV */ |
| 7244 | DO_GFV |
| 7245 | break; |
| 7246 | |
| 7247 | case 0x0E: /* SFvTPv */ |
| 7248 | DO_SFVTPV |
| 7249 | break; |
| 7250 | |
| 7251 | case 0x0F: /* ISECT */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7252 | Ins_ISECT( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7253 | break; |
| 7254 | |
| 7255 | case 0x10: /* SRP0 */ |
| 7256 | DO_SRP0 |
| 7257 | break; |
| 7258 | |
| 7259 | case 0x11: /* SRP1 */ |
| 7260 | DO_SRP1 |
| 7261 | break; |
| 7262 | |
| 7263 | case 0x12: /* SRP2 */ |
| 7264 | DO_SRP2 |
| 7265 | break; |
| 7266 | |
| 7267 | case 0x13: /* SZP0 */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7268 | Ins_SZP0( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7269 | break; |
| 7270 | |
| 7271 | case 0x14: /* SZP1 */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7272 | Ins_SZP1( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7273 | break; |
| 7274 | |
| 7275 | case 0x15: /* SZP2 */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7276 | Ins_SZP2( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7277 | break; |
| 7278 | |
| 7279 | case 0x16: /* SZPS */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7280 | Ins_SZPS( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7281 | break; |
| 7282 | |
| 7283 | case 0x17: /* SLOOP */ |
| 7284 | DO_SLOOP |
| 7285 | break; |
| 7286 | |
| 7287 | case 0x18: /* RTG */ |
| 7288 | DO_RTG |
| 7289 | break; |
| 7290 | |
| 7291 | case 0x19: /* RTHG */ |
| 7292 | DO_RTHG |
| 7293 | break; |
| 7294 | |
| 7295 | case 0x1A: /* SMD */ |
| 7296 | DO_SMD |
| 7297 | break; |
| 7298 | |
| 7299 | case 0x1B: /* ELSE */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7300 | Ins_ELSE( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7301 | break; |
| 7302 | |
| 7303 | case 0x1C: /* JMPR */ |
| 7304 | DO_JMPR |
| 7305 | break; |
| 7306 | |
| 7307 | case 0x1D: /* SCVTCI */ |
| 7308 | DO_SCVTCI |
| 7309 | break; |
| 7310 | |
| 7311 | case 0x1E: /* SSWCI */ |
| 7312 | DO_SSWCI |
| 7313 | break; |
| 7314 | |
| 7315 | case 0x1F: /* SSW */ |
| 7316 | DO_SSW |
| 7317 | break; |
| 7318 | |
| 7319 | case 0x20: /* DUP */ |
| 7320 | DO_DUP |
| 7321 | break; |
| 7322 | |
| 7323 | case 0x21: /* POP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7324 | /* nothing :-) */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7325 | break; |
| 7326 | |
| 7327 | case 0x22: /* CLEAR */ |
| 7328 | DO_CLEAR |
| 7329 | break; |
| 7330 | |
| 7331 | case 0x23: /* SWAP */ |
| 7332 | DO_SWAP |
| 7333 | break; |
| 7334 | |
| 7335 | case 0x24: /* DEPTH */ |
| 7336 | DO_DEPTH |
| 7337 | break; |
| 7338 | |
| 7339 | case 0x25: /* CINDEX */ |
| 7340 | DO_CINDEX |
| 7341 | break; |
| 7342 | |
| 7343 | case 0x26: /* MINDEX */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7344 | Ins_MINDEX( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7345 | break; |
| 7346 | |
| 7347 | case 0x27: /* ALIGNPTS */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7348 | Ins_ALIGNPTS( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7349 | break; |
| 7350 | |
| 7351 | case 0x28: /* ???? */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7352 | Ins_UNKNOWN( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7353 | break; |
| 7354 | |
| 7355 | case 0x29: /* UTP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7356 | Ins_UTP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7357 | break; |
| 7358 | |
| 7359 | case 0x2A: /* LOOPCALL */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7360 | Ins_LOOPCALL( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7361 | break; |
| 7362 | |
| 7363 | case 0x2B: /* CALL */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7364 | Ins_CALL( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7365 | break; |
| 7366 | |
| 7367 | case 0x2C: /* FDEF */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7368 | Ins_FDEF( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7369 | break; |
| 7370 | |
| 7371 | case 0x2D: /* ENDF */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7372 | Ins_ENDF( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7373 | break; |
| 7374 | |
| 7375 | case 0x2E: /* MDAP */ |
| 7376 | case 0x2F: /* MDAP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7377 | Ins_MDAP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7378 | break; |
| 7379 | |
| 7380 | |
| 7381 | case 0x30: /* IUP */ |
| 7382 | case 0x31: /* IUP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7383 | Ins_IUP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7384 | break; |
| 7385 | |
| 7386 | case 0x32: /* SHP */ |
| 7387 | case 0x33: /* SHP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7388 | Ins_SHP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7389 | break; |
| 7390 | |
| 7391 | case 0x34: /* SHC */ |
| 7392 | case 0x35: /* SHC */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7393 | Ins_SHC( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7394 | break; |
| 7395 | |
| 7396 | case 0x36: /* SHZ */ |
| 7397 | case 0x37: /* SHZ */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7398 | Ins_SHZ( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7399 | break; |
| 7400 | |
| 7401 | case 0x38: /* SHPIX */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7402 | Ins_SHPIX( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7403 | break; |
| 7404 | |
| 7405 | case 0x39: /* IP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7406 | Ins_IP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7407 | break; |
| 7408 | |
| 7409 | case 0x3A: /* MSIRP */ |
| 7410 | case 0x3B: /* MSIRP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7411 | Ins_MSIRP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7412 | break; |
| 7413 | |
| 7414 | case 0x3C: /* AlignRP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7415 | Ins_ALIGNRP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7416 | break; |
| 7417 | |
| 7418 | case 0x3D: /* RTDG */ |
| 7419 | DO_RTDG |
| 7420 | break; |
| 7421 | |
| 7422 | case 0x3E: /* MIAP */ |
| 7423 | case 0x3F: /* MIAP */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7424 | Ins_MIAP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7425 | break; |
| 7426 | |
| 7427 | case 0x40: /* NPUSHB */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7428 | Ins_NPUSHB( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7429 | break; |
| 7430 | |
| 7431 | case 0x41: /* NPUSHW */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7432 | Ins_NPUSHW( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7433 | break; |
| 7434 | |
| 7435 | case 0x42: /* WS */ |
| 7436 | DO_WS |
| 7437 | break; |
| 7438 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7439 | Set_Invalid_Ref: |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7440 | CUR.error = TT_Err_Invalid_Reference; |
| 7441 | break; |
| 7442 | |
| 7443 | case 0x43: /* RS */ |
| 7444 | DO_RS |
| 7445 | break; |
| 7446 | |
| 7447 | case 0x44: /* WCVTP */ |
| 7448 | DO_WCVTP |
| 7449 | break; |
| 7450 | |
| 7451 | case 0x45: /* RCVT */ |
| 7452 | DO_RCVT |
| 7453 | break; |
| 7454 | |
| 7455 | case 0x46: /* GC */ |
| 7456 | case 0x47: /* GC */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7457 | Ins_GC( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7458 | break; |
| 7459 | |
| 7460 | case 0x48: /* SCFS */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7461 | Ins_SCFS( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7462 | break; |
| 7463 | |
| 7464 | case 0x49: /* MD */ |
| 7465 | case 0x4A: /* MD */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7466 | Ins_MD( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7467 | break; |
| 7468 | |
| 7469 | case 0x4B: /* MPPEM */ |
| 7470 | DO_MPPEM |
| 7471 | break; |
| 7472 | |
| 7473 | case 0x4C: /* MPS */ |
| 7474 | DO_MPS |
| 7475 | break; |
| 7476 | |
| 7477 | case 0x4D: /* FLIPON */ |
| 7478 | DO_FLIPON |
| 7479 | break; |
| 7480 | |
| 7481 | case 0x4E: /* FLIPOFF */ |
| 7482 | DO_FLIPOFF |
| 7483 | break; |
| 7484 | |
| 7485 | case 0x4F: /* DEBUG */ |
| 7486 | DO_DEBUG |
| 7487 | break; |
| 7488 | |
| 7489 | case 0x50: /* LT */ |
| 7490 | DO_LT |
| 7491 | break; |
| 7492 | |
| 7493 | case 0x51: /* LTEQ */ |
| 7494 | DO_LTEQ |
| 7495 | break; |
| 7496 | |
| 7497 | case 0x52: /* GT */ |
| 7498 | DO_GT |
| 7499 | break; |
| 7500 | |
| 7501 | case 0x53: /* GTEQ */ |
| 7502 | DO_GTEQ |
| 7503 | break; |
| 7504 | |
| 7505 | case 0x54: /* EQ */ |
| 7506 | DO_EQ |
| 7507 | break; |
| 7508 | |
| 7509 | case 0x55: /* NEQ */ |
| 7510 | DO_NEQ |
| 7511 | break; |
| 7512 | |
| 7513 | case 0x56: /* ODD */ |
| 7514 | DO_ODD |
| 7515 | break; |
| 7516 | |
| 7517 | case 0x57: /* EVEN */ |
| 7518 | DO_EVEN |
| 7519 | break; |
| 7520 | |
| 7521 | case 0x58: /* IF */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7522 | Ins_IF( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7523 | break; |
| 7524 | |
| 7525 | case 0x59: /* EIF */ |
| 7526 | /* do nothing */ |
| 7527 | break; |
| 7528 | |
| 7529 | case 0x5A: /* AND */ |
| 7530 | DO_AND |
| 7531 | break; |
| 7532 | |
| 7533 | case 0x5B: /* OR */ |
| 7534 | DO_OR |
| 7535 | break; |
| 7536 | |
| 7537 | case 0x5C: /* NOT */ |
| 7538 | DO_NOT |
| 7539 | break; |
| 7540 | |
| 7541 | case 0x5D: /* DELTAP1 */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7542 | Ins_DELTAP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7543 | break; |
| 7544 | |
| 7545 | case 0x5E: /* SDB */ |
| 7546 | DO_SDB |
| 7547 | break; |
| 7548 | |
| 7549 | case 0x5F: /* SDS */ |
| 7550 | DO_SDS |
| 7551 | break; |
| 7552 | |
| 7553 | case 0x60: /* ADD */ |
| 7554 | DO_ADD |
| 7555 | break; |
| 7556 | |
| 7557 | case 0x61: /* SUB */ |
| 7558 | DO_SUB |
| 7559 | break; |
| 7560 | |
| 7561 | case 0x62: /* DIV */ |
| 7562 | DO_DIV |
| 7563 | break; |
| 7564 | |
| 7565 | case 0x63: /* MUL */ |
| 7566 | DO_MUL |
| 7567 | break; |
| 7568 | |
| 7569 | case 0x64: /* ABS */ |
| 7570 | DO_ABS |
| 7571 | break; |
| 7572 | |
| 7573 | case 0x65: /* NEG */ |
| 7574 | DO_NEG |
| 7575 | break; |
| 7576 | |
| 7577 | case 0x66: /* FLOOR */ |
| 7578 | DO_FLOOR |
| 7579 | break; |
| 7580 | |
| 7581 | case 0x67: /* CEILING */ |
| 7582 | DO_CEILING |
| 7583 | break; |
| 7584 | |
| 7585 | case 0x68: /* ROUND */ |
| 7586 | case 0x69: /* ROUND */ |
| 7587 | case 0x6A: /* ROUND */ |
| 7588 | case 0x6B: /* ROUND */ |
| 7589 | DO_ROUND |
| 7590 | break; |
| 7591 | |
| 7592 | case 0x6C: /* NROUND */ |
| 7593 | case 0x6D: /* NROUND */ |
| 7594 | case 0x6E: /* NRRUND */ |
| 7595 | case 0x6F: /* NROUND */ |
| 7596 | DO_NROUND |
| 7597 | break; |
| 7598 | |
| 7599 | case 0x70: /* WCVTF */ |
| 7600 | DO_WCVTF |
| 7601 | break; |
| 7602 | |
| 7603 | case 0x71: /* DELTAP2 */ |
| 7604 | case 0x72: /* DELTAP3 */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7605 | Ins_DELTAP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7606 | break; |
| 7607 | |
| 7608 | case 0x73: /* DELTAC0 */ |
| 7609 | case 0x74: /* DELTAC1 */ |
| 7610 | case 0x75: /* DELTAC2 */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7611 | Ins_DELTAC( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7612 | break; |
| 7613 | |
| 7614 | case 0x76: /* SROUND */ |
| 7615 | DO_SROUND |
| 7616 | break; |
| 7617 | |
| 7618 | case 0x77: /* S45Round */ |
| 7619 | DO_S45ROUND |
| 7620 | break; |
| 7621 | |
| 7622 | case 0x78: /* JROT */ |
| 7623 | DO_JROT |
| 7624 | break; |
| 7625 | |
| 7626 | case 0x79: /* JROF */ |
| 7627 | DO_JROF |
| 7628 | break; |
| 7629 | |
| 7630 | case 0x7A: /* ROFF */ |
| 7631 | DO_ROFF |
| 7632 | break; |
| 7633 | |
| 7634 | case 0x7B: /* ???? */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7635 | Ins_UNKNOWN( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7636 | break; |
| 7637 | |
| 7638 | case 0x7C: /* RUTG */ |
| 7639 | DO_RUTG |
| 7640 | break; |
| 7641 | |
| 7642 | case 0x7D: /* RDTG */ |
| 7643 | DO_RDTG |
| 7644 | break; |
| 7645 | |
| 7646 | case 0x7E: /* SANGW */ |
| 7647 | case 0x7F: /* AA */ |
| 7648 | /* nothing - obsolete */ |
| 7649 | break; |
| 7650 | |
| 7651 | case 0x80: /* FLIPPT */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7652 | Ins_FLIPPT( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7653 | break; |
| 7654 | |
| 7655 | case 0x81: /* FLIPRGON */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7656 | Ins_FLIPRGON( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7657 | break; |
| 7658 | |
| 7659 | case 0x82: /* FLIPRGOFF */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7660 | Ins_FLIPRGOFF( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7661 | break; |
| 7662 | |
| 7663 | case 0x83: /* UNKNOWN */ |
| 7664 | case 0x84: /* UNKNOWN */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7665 | Ins_UNKNOWN( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7666 | break; |
| 7667 | |
| 7668 | case 0x85: /* SCANCTRL */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7669 | Ins_SCANCTRL( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7670 | break; |
| 7671 | |
| 7672 | case 0x86: /* SDPVTL */ |
| 7673 | case 0x87: /* SDPVTL */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7674 | Ins_SDPVTL( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7675 | break; |
| 7676 | |
| 7677 | case 0x88: /* GETINFO */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7678 | Ins_GETINFO( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7679 | break; |
| 7680 | |
| 7681 | case 0x89: /* IDEF */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7682 | Ins_IDEF( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7683 | break; |
| 7684 | |
| 7685 | case 0x8A: /* ROLL */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7686 | Ins_ROLL( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7687 | break; |
| 7688 | |
| 7689 | case 0x8B: /* MAX */ |
| 7690 | DO_MAX |
| 7691 | break; |
| 7692 | |
| 7693 | case 0x8C: /* MIN */ |
| 7694 | DO_MIN |
| 7695 | break; |
| 7696 | |
| 7697 | case 0x8D: /* SCANTYPE */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7698 | Ins_SCANTYPE( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7699 | break; |
| 7700 | |
| 7701 | case 0x8E: /* INSTCTRL */ |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7702 | Ins_INSTCTRL( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7703 | break; |
| 7704 | |
| 7705 | case 0x8F: |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7706 | Ins_UNKNOWN( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7707 | break; |
| 7708 | |
| 7709 | default: |
| 7710 | if ( opcode >= 0xE0 ) |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7711 | Ins_MIRP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7712 | else if ( opcode >= 0xC0 ) |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7713 | Ins_MDRP( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7714 | else if ( opcode >= 0xB8 ) |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7715 | Ins_PUSHW( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7716 | else if ( opcode >= 0xB0 ) |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7717 | Ins_PUSHB( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7718 | else |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7719 | Ins_UNKNOWN( EXEC_ARG_ args ); |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7720 | } |
| 7721 | |
| 7722 | } |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7723 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7724 | #else |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7725 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7726 | Instruct_Dispatch[CUR.opcode]( EXEC_ARG_ &CUR.stack[CUR.args] ); |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7727 | |
| 7728 | #endif /* TT_CONFIG_OPTION_INTERPRETER_SWITCH */ |
| 7729 | |
Werner Lemberg | 7986070 | 2001-06-08 21:17:29 +0000 | [diff] [blame] | 7730 | if ( CUR.error != TT_Err_Ok ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7731 | { |
| 7732 | switch ( CUR.error ) |
| 7733 | { |
| 7734 | case TT_Err_Invalid_Opcode: /* looking for redefined instructions */ |
| 7735 | { |
| 7736 | TT_DefRecord* def = CUR.IDefs; |
| 7737 | TT_DefRecord* limit = def + CUR.numIDefs; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 7738 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7739 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7740 | for ( ; def < limit; def++ ) |
| 7741 | { |
David Turner | b1aabf4 | 2000-11-30 23:48:22 +0000 | [diff] [blame] | 7742 | if ( def->active && CUR.opcode == (FT_Byte)def->opc ) |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7743 | { |
| 7744 | TT_CallRec* callrec; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 7745 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7746 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7747 | if ( CUR.callTop >= CUR.callSize ) |
| 7748 | { |
| 7749 | CUR.error = TT_Err_Invalid_Reference; |
| 7750 | goto LErrorLabel_; |
| 7751 | } |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 7752 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7753 | callrec = &CUR.callStack[CUR.callTop]; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 7754 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7755 | callrec->Caller_Range = CUR.curRange; |
| 7756 | callrec->Caller_IP = CUR.IP + 1; |
| 7757 | callrec->Cur_Count = 1; |
| 7758 | callrec->Cur_Restart = def->start; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 7759 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7760 | if ( INS_Goto_CodeRange( def->range, def->start ) == FAILURE ) |
| 7761 | goto LErrorLabel_; |
David Turner | e49ab25 | 2000-05-16 23:44:38 +0000 | [diff] [blame] | 7762 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7763 | goto LSuiteLabel_; |
| 7764 | } |
| 7765 | } |
| 7766 | } |
| 7767 | |
| 7768 | CUR.error = TT_Err_Invalid_Opcode; |
| 7769 | goto LErrorLabel_; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7770 | |
| 7771 | #if 0 |
| 7772 | break; /* Unreachable code warning suppression. */ |
| 7773 | /* Leave to remind in case a later change the editor */ |
| 7774 | /* to consider break; */ |
| 7775 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7776 | |
| 7777 | default: |
| 7778 | goto LErrorLabel_; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7779 | |
| 7780 | #if 0 |
| 7781 | break; |
| 7782 | #endif |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7783 | } |
| 7784 | } |
| 7785 | |
| 7786 | CUR.top = CUR.new_top; |
| 7787 | |
| 7788 | if ( CUR.step_ins ) |
| 7789 | CUR.IP += CUR.length; |
| 7790 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7791 | /* increment instruction counter and check if we didn't */ |
| 7792 | /* run this program for too long (e.g. infinite loops). */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7793 | if ( ++ins_counter > MAX_RUNNABLE_OPCODES ) |
| 7794 | return TT_Err_Execution_Too_Long; |
| 7795 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7796 | LSuiteLabel_: |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7797 | if ( CUR.IP >= CUR.codeSize ) |
| 7798 | { |
| 7799 | if ( CUR.callTop > 0 ) |
| 7800 | { |
| 7801 | CUR.error = TT_Err_Code_Overflow; |
| 7802 | goto LErrorLabel_; |
| 7803 | } |
| 7804 | else |
| 7805 | goto LNo_Error_; |
| 7806 | } |
| 7807 | } while ( !CUR.instruction_trap ); |
| 7808 | |
| 7809 | LNo_Error_: |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7810 | |
| 7811 | #ifdef TT_CONFIG_OPTION_STATIC_RASTER |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7812 | *exc = cur; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7813 | #endif |
| 7814 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7815 | return TT_Err_Ok; |
| 7816 | |
| 7817 | LErrorCodeOverflow_: |
| 7818 | CUR.error = TT_Err_Code_Overflow; |
| 7819 | |
| 7820 | LErrorLabel_: |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7821 | |
| 7822 | #ifdef TT_CONFIG_OPTION_STATIC_RASTER |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7823 | *exc = cur; |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7824 | #endif |
| 7825 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7826 | return CUR.error; |
| 7827 | } |
| 7828 | |
| 7829 | |
David Turner | 6aa260c | 2006-08-25 22:45:13 +0000 | [diff] [blame] | 7830 | #endif /* TT_USE_BYTECODE_INTERPRETER */ |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7831 | |
Werner Lemberg | 78575dc | 2000-06-12 19:36:41 +0000 | [diff] [blame] | 7832 | |
David Turner | d2b1f35 | 1999-12-16 23:11:37 +0000 | [diff] [blame] | 7833 | /* END */ |