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Brian00cdc0a2006-12-14 15:01:06 -07001/*
2 * Mesa 3-D graphics library
3 * Version: 6.5.3
4 *
5 * Copyright (C) 1999-2005 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26#include "glheader.h"
27#include "imports.h"
28#include "mtypes.h"
29#include "prog_instruction.h"
30
31
32/**
33 * Initialize program instruction fields to defaults.
34 * \param inst first instruction to initialize
35 * \param count number of instructions to initialize
36 */
37void
38_mesa_init_instructions(struct prog_instruction *inst, GLuint count)
39{
40 GLuint i;
41
42 _mesa_bzero(inst, count * sizeof(struct prog_instruction));
43
44 for (i = 0; i < count; i++) {
45 inst[i].SrcReg[0].File = PROGRAM_UNDEFINED;
46 inst[i].SrcReg[0].Swizzle = SWIZZLE_NOOP;
47 inst[i].SrcReg[1].File = PROGRAM_UNDEFINED;
48 inst[i].SrcReg[1].Swizzle = SWIZZLE_NOOP;
49 inst[i].SrcReg[2].File = PROGRAM_UNDEFINED;
50 inst[i].SrcReg[2].Swizzle = SWIZZLE_NOOP;
51
52 inst[i].DstReg.File = PROGRAM_UNDEFINED;
53 inst[i].DstReg.WriteMask = WRITEMASK_XYZW;
54 inst[i].DstReg.CondMask = COND_TR;
55 inst[i].DstReg.CondSwizzle = SWIZZLE_NOOP;
56
57 inst[i].SaturateMode = SATURATE_OFF;
58 inst[i].Precision = FLOAT32;
59 }
60}
61
62
63/**
64 * Allocate an array of program instructions.
65 * \param numInst number of instructions
66 * \return pointer to instruction memory
67 */
68struct prog_instruction *
69_mesa_alloc_instructions(GLuint numInst)
70{
71 return (struct prog_instruction *)
72 _mesa_calloc(numInst * sizeof(struct prog_instruction));
73}
74
75
76/**
77 * Reallocate memory storing an array of program instructions.
78 * This is used when we need to append additional instructions onto an
79 * program.
80 * \param oldInst pointer to first of old/src instructions
81 * \param numOldInst number of instructions at <oldInst>
82 * \param numNewInst desired size of new instruction array.
83 * \return pointer to start of new instruction array.
84 */
85struct prog_instruction *
86_mesa_realloc_instructions(struct prog_instruction *oldInst,
87 GLuint numOldInst, GLuint numNewInst)
88{
89 struct prog_instruction *newInst;
90
91 newInst = (struct prog_instruction *)
92 _mesa_realloc(oldInst,
93 numOldInst * sizeof(struct prog_instruction),
94 numNewInst * sizeof(struct prog_instruction));
95
96 return newInst;
97}
98
99
Brian23d31ef2007-03-21 11:57:30 -0600100/**
101 * Copy an array of program instructions.
102 * \param dest pointer to destination.
103 * \param src pointer to source.
104 * \param n number of instructions to copy.
105 * \return pointer to destination.
106 */
107struct prog_instruction *
108_mesa_copy_instructions(struct prog_instruction *dest,
109 const struct prog_instruction *src, GLuint n)
110{
Brian4cc26742007-04-20 08:12:17 -0600111 GLuint i;
112 _mesa_memcpy(dest, src, n * sizeof(struct prog_instruction));
113 for (i = 0; i < n; i++) {
114 if (src[i].Comment)
115 dest[i].Comment = _mesa_strdup(src[i].Comment);
116 }
117 return dest;
Brian23d31ef2007-03-21 11:57:30 -0600118}
119
Brian464b82b2006-12-14 15:47:08 -0700120
121/**
122 * Basic info about each instruction
123 */
124struct instruction_info
125{
126 gl_inst_opcode Opcode;
127 const char *Name;
128 GLuint NumSrcRegs;
michal4a470f62007-08-07 15:34:11 +0100129 GLuint NumDstRegs;
Brian464b82b2006-12-14 15:47:08 -0700130};
131
132/**
133 * Instruction info
134 * \note Opcode should equal array index!
135 */
136static const struct instruction_info InstInfo[MAX_OPCODE] = {
michal4a470f62007-08-07 15:34:11 +0100137 { OPCODE_NOP, "NOP", 0, 0 },
138 { OPCODE_ABS, "ABS", 1, 1 },
139 { OPCODE_ADD, "ADD", 2, 1 },
140 { OPCODE_ARA, "ARA", 1, 1 },
141 { OPCODE_ARL, "ARL", 1, 1 },
142 { OPCODE_ARL_NV, "ARL", 1, 1 },
143 { OPCODE_ARR, "ARL", 1, 1 },
144 { OPCODE_BGNLOOP,"BGNLOOP", 0, 0 },
145 { OPCODE_BGNSUB, "BGNSUB", 0, 0 },
146 { OPCODE_BRA, "BRA", 0, 0 },
147 { OPCODE_BRK, "BRK", 0, 0 },
148 { OPCODE_CAL, "CAL", 0, 0 },
149 { OPCODE_CMP, "CMP", 3, 1 },
150 { OPCODE_CONT, "CONT", 0, 0 },
151 { OPCODE_COS, "COS", 1, 1 },
152 { OPCODE_DDX, "DDX", 1, 1 },
153 { OPCODE_DDY, "DDY", 1, 1 },
154 { OPCODE_DP3, "DP3", 2, 1 },
155 { OPCODE_DP4, "DP4", 2, 1 },
156 { OPCODE_DPH, "DPH", 2, 1 },
157 { OPCODE_DST, "DST", 2, 1 },
158 { OPCODE_ELSE, "ELSE", 0, 0 },
159 { OPCODE_END, "END", 0, 0 },
160 { OPCODE_ENDIF, "ENDIF", 0, 0 },
161 { OPCODE_ENDLOOP,"ENDLOOP", 0, 0 },
162 { OPCODE_ENDSUB, "ENDSUB", 0, 0 },
163 { OPCODE_EX2, "EX2", 1, 1 },
164 { OPCODE_EXP, "EXP", 1, 1 },
165 { OPCODE_FLR, "FLR", 1, 1 },
166 { OPCODE_FRC, "FRC", 1, 1 },
167 { OPCODE_IF, "IF", 1, 0 },
168 { OPCODE_INT, "INT", 1, 1 },
169 { OPCODE_KIL, "KIL", 1, 0 },
170 { OPCODE_KIL_NV, "KIL", 0, 0 },
171 { OPCODE_LG2, "LG2", 1, 1 },
172 { OPCODE_LIT, "LIT", 1, 1 },
173 { OPCODE_LOG, "LOG", 1, 1 },
174 { OPCODE_LRP, "LRP", 3, 1 },
175 { OPCODE_MAD, "MAD", 3, 1 },
176 { OPCODE_MAX, "MAX", 2, 1 },
177 { OPCODE_MIN, "MIN", 2, 1 },
178 { OPCODE_MOV, "MOV", 1, 1 },
179 { OPCODE_MUL, "MUL", 2, 1 },
180 { OPCODE_NOISE1, "NOISE1", 1, 1 },
181 { OPCODE_NOISE2, "NOISE2", 1, 1 },
182 { OPCODE_NOISE3, "NOISE3", 1, 1 },
183 { OPCODE_NOISE4, "NOISE4", 1, 1 },
184 { OPCODE_PK2H, "PK2H", 1, 1 },
185 { OPCODE_PK2US, "PK2US", 1, 1 },
186 { OPCODE_PK4B, "PK4B", 1, 1 },
187 { OPCODE_PK4UB, "PK4UB", 1, 1 },
188 { OPCODE_POW, "POW", 2, 1 },
189 { OPCODE_POPA, "POPA", 0, 0 },
190 { OPCODE_PRINT, "PRINT", 1, 0 },
191 { OPCODE_PUSHA, "PUSHA", 0, 0 },
192 { OPCODE_RCC, "RCC", 1, 1 },
193 { OPCODE_RCP, "RCP", 1, 1 },
194 { OPCODE_RET, "RET", 0, 0 },
195 { OPCODE_RFL, "RFL", 1, 1 },
196 { OPCODE_RSQ, "RSQ", 1, 1 },
197 { OPCODE_SCS, "SCS", 1, 1 },
198 { OPCODE_SEQ, "SEQ", 2, 1 },
199 { OPCODE_SFL, "SFL", 0, 1 },
200 { OPCODE_SGE, "SGE", 2, 1 },
201 { OPCODE_SGT, "SGT", 2, 1 },
202 { OPCODE_SIN, "SIN", 1, 1 },
203 { OPCODE_SLE, "SLE", 2, 1 },
204 { OPCODE_SLT, "SLT", 2, 1 },
205 { OPCODE_SNE, "SNE", 2, 1 },
206 { OPCODE_SSG, "SSG", 1, 1 },
207 { OPCODE_STR, "STR", 0, 1 },
208 { OPCODE_SUB, "SUB", 2, 1 },
209 { OPCODE_SWZ, "SWZ", 1, 1 },
210 { OPCODE_TEX, "TEX", 1, 1 },
211 { OPCODE_TXB, "TXB", 1, 1 },
212 { OPCODE_TXD, "TXD", 3, 1 },
213 { OPCODE_TXL, "TXL", 1, 1 },
214 { OPCODE_TXP, "TXP", 1, 1 },
215 { OPCODE_TXP_NV, "TXP", 1, 1 },
216 { OPCODE_UP2H, "UP2H", 1, 1 },
217 { OPCODE_UP2US, "UP2US", 1, 1 },
218 { OPCODE_UP4B, "UP4B", 1, 1 },
219 { OPCODE_UP4UB, "UP4UB", 1, 1 },
220 { OPCODE_X2D, "X2D", 3, 1 },
221 { OPCODE_XPD, "XPD", 2, 1 }
Brian464b82b2006-12-14 15:47:08 -0700222};
223
224
225/**
226 * Return the number of src registers for the given instruction/opcode.
227 */
228GLuint
229_mesa_num_inst_src_regs(gl_inst_opcode opcode)
230{
231 ASSERT(opcode == InstInfo[opcode].Opcode);
232 ASSERT(OPCODE_XPD == InstInfo[OPCODE_XPD].Opcode);
233 return InstInfo[opcode].NumSrcRegs;
234}
235
236
237/**
michal4a470f62007-08-07 15:34:11 +0100238 * Return the number of dst registers for the given instruction/opcode.
239 */
240GLuint
241_mesa_num_inst_dst_regs(gl_inst_opcode opcode)
242{
243 ASSERT(opcode == InstInfo[opcode].Opcode);
244 ASSERT(OPCODE_XPD == InstInfo[OPCODE_XPD].Opcode);
245 return InstInfo[opcode].NumDstRegs;
246}
247
248
249/**
Brian464b82b2006-12-14 15:47:08 -0700250 * Return string name for given program opcode.
251 */
252const char *
253_mesa_opcode_string(gl_inst_opcode opcode)
254{
255 ASSERT(opcode < MAX_OPCODE);
256 return InstInfo[opcode].Name;
257}
258