The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #ifndef ANDROID_GGL_CONTEXT_H |
| 18 | #define ANDROID_GGL_CONTEXT_H |
| 19 | |
| 20 | #include <stdint.h> |
| 21 | #include <stddef.h> |
| 22 | #include <string.h> |
| 23 | #include <sys/types.h> |
Mathias Agopian | ce51b3b | 2009-06-07 02:13:02 -0700 | [diff] [blame] | 24 | #include <endian.h> |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 25 | |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 26 | #include <pixelflinger/pixelflinger.h> |
| 27 | #include <private/pixelflinger/ggl_fixed.h> |
| 28 | |
| 29 | namespace android { |
| 30 | |
| 31 | // ---------------------------------------------------------------------------- |
| 32 | |
| 33 | #if BYTE_ORDER == LITTLE_ENDIAN |
| 34 | |
| 35 | inline uint32_t GGL_RGBA_TO_HOST(uint32_t v) { |
| 36 | return v; |
| 37 | } |
| 38 | inline uint32_t GGL_HOST_TO_RGBA(uint32_t v) { |
| 39 | return v; |
| 40 | } |
| 41 | |
| 42 | #else |
| 43 | |
| 44 | inline uint32_t GGL_RGBA_TO_HOST(uint32_t v) { |
| 45 | return (v<<24) | (v>>24) | ((v<<8)&0xff0000) | ((v>>8)&0xff00); |
| 46 | } |
| 47 | inline uint32_t GGL_HOST_TO_RGBA(uint32_t v) { |
| 48 | return (v<<24) | (v>>24) | ((v<<8)&0xff0000) | ((v>>8)&0xff00); |
| 49 | } |
| 50 | |
| 51 | #endif |
| 52 | |
| 53 | // ---------------------------------------------------------------------------- |
| 54 | |
| 55 | const int GGL_DITHER_BITS = 6; // dither weights stored on 6 bits |
| 56 | const int GGL_DITHER_ORDER_SHIFT= 3; |
| 57 | const int GGL_DITHER_ORDER = (1<<GGL_DITHER_ORDER_SHIFT); |
| 58 | const int GGL_DITHER_SIZE = GGL_DITHER_ORDER * GGL_DITHER_ORDER; |
| 59 | const int GGL_DITHER_MASK = GGL_DITHER_ORDER-1; |
| 60 | |
| 61 | // ---------------------------------------------------------------------------- |
| 62 | |
| 63 | const int GGL_SUBPIXEL_BITS = 4; |
| 64 | |
| 65 | // TRI_FRACTION_BITS defines the number of bits we want to use |
| 66 | // for the sub-pixel coordinates during the edge stepping, the |
| 67 | // value shouldn't be more than 7, or bad things are going to |
| 68 | // happen when drawing large triangles (8 doesn't work because |
| 69 | // 32 bit muls will loose the sign bit) |
| 70 | |
| 71 | #define TRI_FRACTION_BITS (GGL_SUBPIXEL_BITS) |
| 72 | #define TRI_ONE (1 << TRI_FRACTION_BITS) |
| 73 | #define TRI_HALF (1 << (TRI_FRACTION_BITS-1)) |
| 74 | #define TRI_FROM_INT(x) ((x) << TRI_FRACTION_BITS) |
| 75 | #define TRI_FRAC(x) ((x) & (TRI_ONE-1)) |
| 76 | #define TRI_FLOOR(x) ((x) & ~(TRI_ONE-1)) |
| 77 | #define TRI_CEIL(x) (((x) + (TRI_ONE-1)) & ~(TRI_ONE-1)) |
| 78 | #define TRI_ROUND(x) (((x) + TRI_HALF ) & ~(TRI_ONE-1)) |
| 79 | |
| 80 | #define TRI_ROUDNING (1 << (16 - TRI_FRACTION_BITS - 1)) |
| 81 | #define TRI_FROM_FIXED(x) (((x)+TRI_ROUDNING) >> (16-TRI_FRACTION_BITS)) |
| 82 | |
| 83 | #define TRI_SNAP_NEXT_HALF(x) (TRI_CEIL((x)+TRI_HALF) - TRI_HALF) |
| 84 | #define TRI_SNAP_PREV_HALF(x) (TRI_CEIL((x)-TRI_HALF) - TRI_HALF) |
| 85 | |
| 86 | // ---------------------------------------------------------------------------- |
| 87 | |
| 88 | const int GGL_COLOR_BITS = 24; |
| 89 | |
| 90 | // To maintain 8-bits color chanels, with a maximum GGLSurface |
| 91 | // size of 4096 and GGL_SUBPIXEL_BITS=4, we need 8 + 12 + 4 = 24 bits |
| 92 | // for encoding the color iterators |
| 93 | |
| 94 | inline GGLcolor gglFixedToIteratedColor(GGLfixed c) { |
| 95 | return (c << 8) - c; |
| 96 | } |
| 97 | |
| 98 | // ---------------------------------------------------------------------------- |
| 99 | |
| 100 | template<bool> struct CTA; |
| 101 | template<> struct CTA<true> { }; |
| 102 | |
| 103 | #define GGL_CONTEXT(con, c) context_t *con = static_cast<context_t *>(c) |
| 104 | #define GGL_OFFSETOF(field) int(&(((context_t*)0)->field)) |
| 105 | #define GGL_INIT_PROC(p, f) p.f = ggl_ ## f; |
| 106 | #define GGL_BETWEEN(x, L, H) (uint32_t((x)-(L)) <= ((H)-(L))) |
| 107 | |
| 108 | #define ggl_likely(x) __builtin_expect(!!(x), 1) |
| 109 | #define ggl_unlikely(x) __builtin_expect(!!(x), 0) |
| 110 | |
| 111 | const int GGL_TEXTURE_UNIT_COUNT = 2; |
| 112 | const int GGL_TMU_STATE = 0x00000001; |
| 113 | const int GGL_CB_STATE = 0x00000002; |
| 114 | const int GGL_PIXEL_PIPELINE_STATE = 0x00000004; |
| 115 | |
| 116 | // ---------------------------------------------------------------------------- |
| 117 | |
| 118 | #define GGL_RESERVE_NEEDS(name, l, s) \ |
| 119 | const uint32_t GGL_NEEDS_##name##_MASK = (((1LU<<(s))-1)<<l); \ |
| 120 | const uint32_t GGL_NEEDS_##name##_SHIFT = (l); |
| 121 | |
| 122 | #define GGL_BUILD_NEEDS(val, name) \ |
| 123 | (((val)<<(GGL_NEEDS_##name##_SHIFT)) & GGL_NEEDS_##name##_MASK) |
| 124 | |
| 125 | #define GGL_READ_NEEDS(name, n) \ |
| 126 | (uint32_t(n & GGL_NEEDS_##name##_MASK) >> GGL_NEEDS_##name##_SHIFT) |
| 127 | |
| 128 | #define GGL_NEED_MASK(name) (uint32_t(GGL_NEEDS_##name##_MASK)) |
| 129 | #define GGL_NEED(name, val) GGL_BUILD_NEEDS(val, name) |
| 130 | |
| 131 | GGL_RESERVE_NEEDS( CB_FORMAT, 0, 6 ) |
| 132 | GGL_RESERVE_NEEDS( SHADE, 6, 1 ) |
| 133 | GGL_RESERVE_NEEDS( W, 7, 1 ) |
| 134 | GGL_RESERVE_NEEDS( BLEND_SRC, 8, 4 ) |
| 135 | GGL_RESERVE_NEEDS( BLEND_DST, 12, 4 ) |
| 136 | GGL_RESERVE_NEEDS( BLEND_SRCA, 16, 4 ) |
| 137 | GGL_RESERVE_NEEDS( BLEND_DSTA, 20, 4 ) |
| 138 | GGL_RESERVE_NEEDS( LOGIC_OP, 24, 4 ) |
| 139 | GGL_RESERVE_NEEDS( MASK_ARGB, 28, 4 ) |
| 140 | |
| 141 | GGL_RESERVE_NEEDS( P_ALPHA_TEST, 0, 3 ) |
| 142 | GGL_RESERVE_NEEDS( P_AA, 3, 1 ) |
| 143 | GGL_RESERVE_NEEDS( P_DEPTH_TEST, 4, 3 ) |
| 144 | GGL_RESERVE_NEEDS( P_MASK_Z, 7, 1 ) |
| 145 | GGL_RESERVE_NEEDS( P_DITHER, 8, 1 ) |
| 146 | GGL_RESERVE_NEEDS( P_FOG, 9, 1 ) |
| 147 | GGL_RESERVE_NEEDS( P_RESERVED1, 10,22 ) |
| 148 | |
| 149 | GGL_RESERVE_NEEDS( T_FORMAT, 0, 6 ) |
| 150 | GGL_RESERVE_NEEDS( T_RESERVED0, 6, 1 ) |
| 151 | GGL_RESERVE_NEEDS( T_POT, 7, 1 ) |
| 152 | GGL_RESERVE_NEEDS( T_S_WRAP, 8, 2 ) |
| 153 | GGL_RESERVE_NEEDS( T_T_WRAP, 10, 2 ) |
| 154 | GGL_RESERVE_NEEDS( T_ENV, 12, 3 ) |
| 155 | GGL_RESERVE_NEEDS( T_LINEAR, 15, 1 ) |
| 156 | |
| 157 | const int GGL_NEEDS_WRAP_CLAMP_TO_EDGE = 0; |
| 158 | const int GGL_NEEDS_WRAP_REPEAT = 1; |
| 159 | const int GGL_NEEDS_WRAP_11 = 2; |
| 160 | |
| 161 | inline uint32_t ggl_wrap_to_needs(uint32_t e) { |
| 162 | switch (e) { |
| 163 | case GGL_CLAMP: return GGL_NEEDS_WRAP_CLAMP_TO_EDGE; |
| 164 | case GGL_REPEAT: return GGL_NEEDS_WRAP_REPEAT; |
| 165 | } |
| 166 | return 0; |
| 167 | } |
| 168 | |
| 169 | inline uint32_t ggl_blendfactor_to_needs(uint32_t b) { |
| 170 | if (b <= 1) return b; |
| 171 | return (b & 0xF)+2; |
| 172 | } |
| 173 | |
| 174 | inline uint32_t ggl_needs_to_blendfactor(uint32_t n) { |
| 175 | if (n <= 1) return n; |
| 176 | return (n - 2) + 0x300; |
| 177 | } |
| 178 | |
| 179 | inline uint32_t ggl_env_to_needs(uint32_t e) { |
| 180 | switch (e) { |
| 181 | case GGL_REPLACE: return 0; |
| 182 | case GGL_MODULATE: return 1; |
| 183 | case GGL_DECAL: return 2; |
| 184 | case GGL_BLEND: return 3; |
| 185 | case GGL_ADD: return 4; |
| 186 | } |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | inline uint32_t ggl_needs_to_env(uint32_t n) { |
| 191 | const uint32_t envs[] = { GGL_REPLACE, GGL_MODULATE, |
| 192 | GGL_DECAL, GGL_BLEND, GGL_ADD }; |
| 193 | return envs[n]; |
| 194 | |
| 195 | } |
| 196 | |
| 197 | // ---------------------------------------------------------------------------- |
| 198 | |
| 199 | enum { |
| 200 | GGL_ENABLE_BLENDING = 0x00000001, |
| 201 | GGL_ENABLE_SMOOTH = 0x00000002, |
| 202 | GGL_ENABLE_AA = 0x00000004, |
| 203 | GGL_ENABLE_LOGIC_OP = 0x00000008, |
| 204 | GGL_ENABLE_ALPHA_TEST = 0x00000010, |
| 205 | GGL_ENABLE_SCISSOR_TEST = 0x00000020, |
| 206 | GGL_ENABLE_TMUS = 0x00000040, |
| 207 | GGL_ENABLE_DEPTH_TEST = 0x00000080, |
| 208 | GGL_ENABLE_STENCIL_TEST = 0x00000100, |
| 209 | GGL_ENABLE_W = 0x00000200, |
| 210 | GGL_ENABLE_DITHER = 0x00000400, |
| 211 | GGL_ENABLE_FOG = 0x00000800, |
| 212 | GGL_ENABLE_POINT_AA_NICE= 0x00001000 |
| 213 | }; |
| 214 | |
| 215 | // ---------------------------------------------------------------------------- |
| 216 | |
| 217 | class needs_filter_t; |
| 218 | struct needs_t { |
| 219 | inline int match(const needs_filter_t& filter); |
| 220 | inline bool operator == (const needs_t& rhs) const { |
| 221 | return (n==rhs.n) && |
| 222 | (p==rhs.p) && |
| 223 | (t[0]==rhs.t[0]) && |
| 224 | (t[1]==rhs.t[1]); |
| 225 | } |
| 226 | inline bool operator != (const needs_t& rhs) const { |
| 227 | return !operator == (rhs); |
| 228 | } |
| 229 | uint32_t n; |
| 230 | uint32_t p; |
| 231 | uint32_t t[GGL_TEXTURE_UNIT_COUNT]; |
| 232 | }; |
| 233 | |
| 234 | inline int compare_type(const needs_t& lhs, const needs_t& rhs) { |
| 235 | return memcmp(&lhs, &rhs, sizeof(needs_t)); |
| 236 | } |
| 237 | |
| 238 | struct needs_filter_t { |
| 239 | needs_t value; |
| 240 | needs_t mask; |
| 241 | }; |
| 242 | |
| 243 | int needs_t::match(const needs_filter_t& filter) { |
| 244 | uint32_t result = |
| 245 | ((filter.value.n ^ n) & filter.mask.n) | |
| 246 | ((filter.value.p ^ p) & filter.mask.p) | |
| 247 | ((filter.value.t[0] ^ t[0]) & filter.mask.t[0]) | |
| 248 | ((filter.value.t[1] ^ t[1]) & filter.mask.t[1]); |
| 249 | return (result == 0); |
| 250 | } |
| 251 | |
| 252 | // ---------------------------------------------------------------------------- |
| 253 | |
| 254 | struct context_t; |
| 255 | class Assembly; |
| 256 | |
| 257 | struct blend_state_t { |
| 258 | uint32_t src; |
| 259 | uint32_t dst; |
| 260 | uint32_t src_alpha; |
| 261 | uint32_t dst_alpha; |
| 262 | uint8_t reserved; |
| 263 | uint8_t alpha_separate; |
| 264 | uint8_t operation; |
| 265 | uint8_t equation; |
| 266 | }; |
| 267 | |
| 268 | struct mask_state_t { |
| 269 | uint8_t color; |
| 270 | uint8_t depth; |
| 271 | uint32_t stencil; |
| 272 | }; |
| 273 | |
| 274 | struct clear_state_t { |
| 275 | GGLclampx r; |
| 276 | GGLclampx g; |
| 277 | GGLclampx b; |
| 278 | GGLclampx a; |
| 279 | GGLclampx depth; |
| 280 | GGLint stencil; |
| 281 | uint32_t colorPacked; |
| 282 | uint32_t depthPacked; |
| 283 | uint32_t stencilPacked; |
| 284 | uint32_t dirty; |
| 285 | }; |
| 286 | |
| 287 | struct fog_state_t { |
Mathias Agopian | fa36f2c | 2010-02-16 21:01:12 -0800 | [diff] [blame^] | 288 | uint8_t color[4]; |
The Android Open Source Project | dd7bc33 | 2009-03-03 19:32:55 -0800 | [diff] [blame] | 289 | }; |
| 290 | |
| 291 | struct logic_op_state_t { |
| 292 | uint16_t opcode; |
| 293 | }; |
| 294 | |
| 295 | struct alpha_test_state_t { |
| 296 | uint16_t func; |
| 297 | GGLcolor ref; |
| 298 | }; |
| 299 | |
| 300 | struct depth_test_state_t { |
| 301 | uint16_t func; |
| 302 | GGLclampx clearValue; |
| 303 | }; |
| 304 | |
| 305 | struct scissor_t { |
| 306 | uint32_t user_left; |
| 307 | uint32_t user_right; |
| 308 | uint32_t user_top; |
| 309 | uint32_t user_bottom; |
| 310 | uint32_t left; |
| 311 | uint32_t right; |
| 312 | uint32_t top; |
| 313 | uint32_t bottom; |
| 314 | }; |
| 315 | |
| 316 | struct pixel_t { |
| 317 | uint32_t c[4]; |
| 318 | uint8_t s[4]; |
| 319 | }; |
| 320 | |
| 321 | struct surface_t { |
| 322 | union { |
| 323 | GGLSurface s; |
| 324 | struct { |
| 325 | uint32_t reserved; |
| 326 | uint32_t width; |
| 327 | uint32_t height; |
| 328 | int32_t stride; |
| 329 | uint8_t* data; |
| 330 | uint8_t format; |
| 331 | uint8_t dirty; |
| 332 | uint8_t pad[2]; |
| 333 | }; |
| 334 | }; |
| 335 | void (*read) (const surface_t* s, context_t* c, |
| 336 | uint32_t x, uint32_t y, pixel_t* pixel); |
| 337 | void (*write)(const surface_t* s, context_t* c, |
| 338 | uint32_t x, uint32_t y, const pixel_t* pixel); |
| 339 | }; |
| 340 | |
| 341 | // ---------------------------------------------------------------------------- |
| 342 | |
| 343 | struct texture_shade_t { |
| 344 | union { |
| 345 | struct { |
| 346 | int32_t is0; |
| 347 | int32_t idsdx; |
| 348 | int32_t idsdy; |
| 349 | int sscale; |
| 350 | int32_t it0; |
| 351 | int32_t idtdx; |
| 352 | int32_t idtdy; |
| 353 | int tscale; |
| 354 | }; |
| 355 | struct { |
| 356 | int32_t v; |
| 357 | int32_t dx; |
| 358 | int32_t dy; |
| 359 | int scale; |
| 360 | } st[2]; |
| 361 | }; |
| 362 | }; |
| 363 | |
| 364 | struct texture_iterators_t { |
| 365 | // these are not encoded in the same way than in the |
| 366 | // texture_shade_t structure |
| 367 | union { |
| 368 | struct { |
| 369 | GGLfixed ydsdy; |
| 370 | GGLfixed dsdx; |
| 371 | GGLfixed dsdy; |
| 372 | int sscale; |
| 373 | GGLfixed ydtdy; |
| 374 | GGLfixed dtdx; |
| 375 | GGLfixed dtdy; |
| 376 | int tscale; |
| 377 | }; |
| 378 | struct { |
| 379 | GGLfixed ydvdy; |
| 380 | GGLfixed dvdx; |
| 381 | GGLfixed dvdy; |
| 382 | int scale; |
| 383 | } st[2]; |
| 384 | }; |
| 385 | }; |
| 386 | |
| 387 | struct texture_t { |
| 388 | surface_t surface; |
| 389 | texture_iterators_t iterators; |
| 390 | texture_shade_t shade; |
| 391 | uint32_t s_coord; |
| 392 | uint32_t t_coord; |
| 393 | uint16_t s_wrap; |
| 394 | uint16_t t_wrap; |
| 395 | uint16_t min_filter; |
| 396 | uint16_t mag_filter; |
| 397 | uint16_t env; |
| 398 | uint8_t env_color[4]; |
| 399 | uint8_t enable; |
| 400 | uint8_t dirty; |
| 401 | }; |
| 402 | |
| 403 | struct raster_t { |
| 404 | GGLfixed x; |
| 405 | GGLfixed y; |
| 406 | }; |
| 407 | |
| 408 | struct framebuffer_t { |
| 409 | surface_t color; |
| 410 | surface_t read; |
| 411 | surface_t depth; |
| 412 | surface_t stencil; |
| 413 | int16_t *coverage; |
| 414 | size_t coverageBufferSize; |
| 415 | }; |
| 416 | |
| 417 | // ---------------------------------------------------------------------------- |
| 418 | |
| 419 | struct iterators_t { |
| 420 | int32_t xl; |
| 421 | int32_t xr; |
| 422 | int32_t y; |
| 423 | GGLcolor ydady; |
| 424 | GGLcolor ydrdy; |
| 425 | GGLcolor ydgdy; |
| 426 | GGLcolor ydbdy; |
| 427 | GGLfixed ydzdy; |
| 428 | GGLfixed ydwdy; |
| 429 | GGLfixed ydfdy; |
| 430 | }; |
| 431 | |
| 432 | struct shade_t { |
| 433 | GGLcolor a0; |
| 434 | GGLcolor dadx; |
| 435 | GGLcolor dady; |
| 436 | GGLcolor r0; |
| 437 | GGLcolor drdx; |
| 438 | GGLcolor drdy; |
| 439 | GGLcolor g0; |
| 440 | GGLcolor dgdx; |
| 441 | GGLcolor dgdy; |
| 442 | GGLcolor b0; |
| 443 | GGLcolor dbdx; |
| 444 | GGLcolor dbdy; |
| 445 | uint32_t z0; |
| 446 | GGLfixed32 dzdx; |
| 447 | GGLfixed32 dzdy; |
| 448 | GGLfixed w0; |
| 449 | GGLfixed dwdx; |
| 450 | GGLfixed dwdy; |
| 451 | uint32_t f0; |
| 452 | GGLfixed dfdx; |
| 453 | GGLfixed dfdy; |
| 454 | }; |
| 455 | |
| 456 | // these are used in the generated code |
| 457 | // we use this mirror structure to improve |
| 458 | // data locality in the pixel pipeline |
| 459 | struct generated_tex_vars_t { |
| 460 | uint32_t width; |
| 461 | uint32_t height; |
| 462 | uint32_t stride; |
| 463 | int32_t data; |
| 464 | int32_t dsdx; |
| 465 | int32_t dtdx; |
| 466 | int32_t spill[2]; |
| 467 | }; |
| 468 | |
| 469 | struct generated_vars_t { |
| 470 | struct { |
| 471 | int32_t c; |
| 472 | int32_t dx; |
| 473 | } argb[4]; |
| 474 | int32_t aref; |
| 475 | int32_t dzdx; |
| 476 | int32_t zbase; |
| 477 | int32_t f; |
| 478 | int32_t dfdx; |
| 479 | int32_t spill[3]; |
| 480 | generated_tex_vars_t texture[GGL_TEXTURE_UNIT_COUNT]; |
| 481 | int32_t rt; |
| 482 | int32_t lb; |
| 483 | }; |
| 484 | |
| 485 | // ---------------------------------------------------------------------------- |
| 486 | |
| 487 | struct state_t { |
| 488 | framebuffer_t buffers; |
| 489 | texture_t texture[GGL_TEXTURE_UNIT_COUNT]; |
| 490 | scissor_t scissor; |
| 491 | raster_t raster; |
| 492 | blend_state_t blend; |
| 493 | alpha_test_state_t alpha_test; |
| 494 | depth_test_state_t depth_test; |
| 495 | mask_state_t mask; |
| 496 | clear_state_t clear; |
| 497 | fog_state_t fog; |
| 498 | logic_op_state_t logic_op; |
| 499 | uint32_t enables; |
| 500 | uint32_t enabled_tmu; |
| 501 | needs_t needs; |
| 502 | }; |
| 503 | |
| 504 | // ---------------------------------------------------------------------------- |
| 505 | |
| 506 | struct context_t { |
| 507 | GGLContext procs; |
| 508 | state_t state; |
| 509 | shade_t shade; |
| 510 | iterators_t iterators; |
| 511 | generated_vars_t generated_vars __attribute__((aligned(32))); |
| 512 | uint8_t ditherMatrix[GGL_DITHER_SIZE] __attribute__((aligned(32))); |
| 513 | uint32_t packed; |
| 514 | uint32_t packed8888; |
| 515 | const GGLFormat* formats; |
| 516 | uint32_t dirty; |
| 517 | texture_t* activeTMU; |
| 518 | uint32_t activeTMUIndex; |
| 519 | |
| 520 | void (*init_y)(context_t* c, int32_t y); |
| 521 | void (*step_y)(context_t* c); |
| 522 | void (*scanline)(context_t* c); |
| 523 | void (*span)(context_t* c); |
| 524 | void (*rect)(context_t* c, size_t yc); |
| 525 | |
| 526 | void* base; |
| 527 | Assembly* scanline_as; |
| 528 | GGLenum error; |
| 529 | }; |
| 530 | |
| 531 | // ---------------------------------------------------------------------------- |
| 532 | |
| 533 | void ggl_init_context(context_t* context); |
| 534 | void ggl_uninit_context(context_t* context); |
| 535 | void ggl_error(context_t* c, GGLenum error); |
| 536 | int64_t ggl_system_time(); |
| 537 | |
| 538 | // ---------------------------------------------------------------------------- |
| 539 | |
| 540 | }; |
| 541 | |
| 542 | #endif // ANDROID_GGL_CONTEXT_H |
| 543 | |