vl_idct.c revision 3fd53e6c2a05e65872de4292557d7839cbcf7395
1/************************************************************************** 2 * 3 * Copyright 2010 Christian König 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28#include "vl_idct.h" 29#include "util/u_draw.h" 30#include <assert.h> 31#include <pipe/p_context.h> 32#include <pipe/p_screen.h> 33#include <util/u_inlines.h> 34#include <util/u_sampler.h> 35#include <util/u_format.h> 36#include <tgsi/tgsi_ureg.h> 37#include "vl_types.h" 38 39#define BLOCK_WIDTH 8 40#define BLOCK_HEIGHT 8 41 42#define SCALE_FACTOR_16_TO_9 (32768.0f / 256.0f) 43 44#define STAGE1_SCALE 4.0f 45#define STAGE2_SCALE (SCALE_FACTOR_16_TO_9 / STAGE1_SCALE) 46 47struct vertex_shader_consts 48{ 49 struct vertex4f norm; 50}; 51 52enum VS_INPUT 53{ 54 VS_I_RECT, 55 VS_I_VPOS, 56 57 NUM_VS_INPUTS 58}; 59 60enum VS_OUTPUT 61{ 62 VS_O_VPOS, 63 VS_O_BLOCK, 64 VS_O_TEX, 65 VS_O_START 66}; 67 68static const float const_matrix[8][8] = { 69 { 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.353553f, 0.3535530f }, 70 { 0.4903930f, 0.4157350f, 0.2777850f, 0.0975451f, -0.0975452f, -0.2777850f, -0.415735f, -0.4903930f }, 71 { 0.4619400f, 0.1913420f, -0.1913420f, -0.4619400f, -0.4619400f, -0.1913420f, 0.191342f, 0.4619400f }, 72 { 0.4157350f, -0.0975452f, -0.4903930f, -0.2777850f, 0.2777850f, 0.4903930f, 0.097545f, -0.4157350f }, 73 { 0.3535530f, -0.3535530f, -0.3535530f, 0.3535540f, 0.3535530f, -0.3535540f, -0.353553f, 0.3535530f }, 74 { 0.2777850f, -0.4903930f, 0.0975452f, 0.4157350f, -0.4157350f, -0.0975451f, 0.490393f, -0.2777850f }, 75 { 0.1913420f, -0.4619400f, 0.4619400f, -0.1913420f, -0.1913410f, 0.4619400f, -0.461940f, 0.1913420f }, 76 { 0.0975451f, -0.2777850f, 0.4157350f, -0.4903930f, 0.4903930f, -0.4157350f, 0.277786f, -0.0975458f } 77}; 78 79/* vertices for a quad covering a block */ 80static const struct vertex2f const_quad[4] = { 81 {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} 82}; 83 84static void * 85create_vert_shader(struct vl_idct *idct, bool calc_src_cords, struct pipe_resource *dst) 86{ 87 struct ureg_program *shader; 88 struct ureg_src scale; 89 struct ureg_src vrect, vpos; 90 struct ureg_dst t_vpos; 91 struct ureg_dst o_vpos, o_block, o_tex, o_start; 92 93 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 94 if (!shader) 95 return NULL; 96 97 t_vpos = ureg_DECL_temporary(shader); 98 99 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 100 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 101 102 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 103 104 /* 105 * scale = (BLOCK_WIDTH, BLOCK_HEIGHT) / (dst.width, dst.height) 106 * 107 * t_vpos = vpos + vrect 108 * o_vpos.xy = t_vpos * scale 109 * o_vpos.zw = vpos 110 * 111 * o_block = vrect 112 * o_tex = t_pos 113 * o_start = vpos * scale 114 * 115 */ 116 scale = ureg_imm2f(shader, 117 (float)BLOCK_WIDTH / dst->width0, 118 (float)BLOCK_HEIGHT / dst->height0); 119 120 ureg_ADD(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), vpos, vrect); 121 ureg_MUL(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos), scale); 122 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 123 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), vpos); 124 125 if(calc_src_cords) { 126 o_block = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK); 127 o_tex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX); 128 o_start = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_START); 129 130 ureg_MOV(shader, ureg_writemask(o_block, TGSI_WRITEMASK_XY), vrect); 131 ureg_MOV(shader, ureg_writemask(o_tex, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 132 ureg_MUL(shader, ureg_writemask(o_start, TGSI_WRITEMASK_XY), vpos, scale); 133 } 134 135 ureg_release_temporary(shader, t_vpos); 136 137 ureg_END(shader); 138 139 return ureg_create_shader_and_destroy(shader, idct->pipe); 140} 141 142static void 143fetch_one(struct ureg_program *shader, struct ureg_dst m[2], 144 struct ureg_src tc, struct ureg_src sampler, 145 struct ureg_src start, bool right_side, float size) 146{ 147 struct ureg_dst t_tc, tmp; 148 unsigned i, j; 149 150 t_tc = ureg_DECL_temporary(shader); 151 tmp = ureg_DECL_temporary(shader); 152 153 m[0] = ureg_DECL_temporary(shader); 154 m[1] = ureg_DECL_temporary(shader); 155 156 /* 157 * t_tc.x = right_side ? start.x : tc.x 158 * t_tc.y = right_side ? tc.y : start.y 159 * m[0..1].xyzw = tex(t_tc++, sampler) 160 */ 161 if(right_side) { 162 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X), ureg_scalar(tc, TGSI_SWIZZLE_X)); 163 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), ureg_scalar(start, TGSI_SWIZZLE_Y)); 164 } else { 165 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X), ureg_scalar(start, TGSI_SWIZZLE_X)); 166 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), ureg_scalar(tc, TGSI_SWIZZLE_Y)); 167 } 168 for(i = 0; i < 2; ++i) { 169 for(j = 0; j < 4; ++j) { 170 /* Nouveau and r600g can't writemask tex dst regs (yet?), do in two steps */ 171 ureg_TEX(shader, tmp, TGSI_TEXTURE_2D, ureg_src(t_tc), sampler); 172 ureg_MOV(shader, ureg_writemask(m[i], TGSI_WRITEMASK_X << j), ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X)); 173 174 if(i != 1 || j != 3) /* skip the last add */ 175 ureg_ADD(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X << right_side), 176 ureg_src(t_tc), ureg_imm1f(shader, 1.0f / size)); 177 } 178 } 179 180 ureg_release_temporary(shader, t_tc); 181 ureg_release_temporary(shader, tmp); 182} 183 184static void 185fetch_four(struct ureg_program *shader, struct ureg_dst m[2], 186 struct ureg_src tc, struct ureg_src sampler, 187 struct ureg_src start, bool right_side, float width) 188{ 189 struct ureg_dst t_tc; 190 191 t_tc = ureg_DECL_temporary(shader); 192 m[0] = ureg_DECL_temporary(shader); 193 m[1] = ureg_DECL_temporary(shader); 194 195 /* 196 * t_tc.x = right_side ? start.x : tc.x 197 * t_tc.y = right_side ? tc.y : start.y 198 * m[0..1] = tex(t_tc++, sampler) 199 */ 200 if(right_side) { 201 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X), ureg_scalar(start, TGSI_SWIZZLE_Y)); 202 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), ureg_scalar(tc, TGSI_SWIZZLE_X)); 203 } else { 204 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X), ureg_scalar(start, TGSI_SWIZZLE_X)); 205 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), ureg_scalar(tc, TGSI_SWIZZLE_Y)); 206 } 207 208 ureg_TEX(shader, m[0], TGSI_TEXTURE_2D, ureg_src(t_tc), sampler); 209 ureg_ADD(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X), ureg_src(t_tc), ureg_imm1f(shader, 1.0f / width)); 210 ureg_TEX(shader, m[1], TGSI_TEXTURE_2D, ureg_src(t_tc), sampler); 211 212 ureg_release_temporary(shader, t_tc); 213} 214 215static void 216matrix_mul(struct ureg_program *shader, struct ureg_dst dst, struct ureg_dst l[2], struct ureg_dst r[2]) 217{ 218 struct ureg_dst tmp[2]; 219 unsigned i; 220 221 for(i = 0; i < 2; ++i) { 222 tmp[i] = ureg_DECL_temporary(shader); 223 } 224 225 /* 226 * tmp[0..1] = dot4(m[0][0..1], m[1][0..1]) 227 * dst = tmp[0] + tmp[1] 228 */ 229 ureg_DP4(shader, ureg_writemask(tmp[0], TGSI_WRITEMASK_X), ureg_src(l[0]), ureg_src(r[0])); 230 ureg_DP4(shader, ureg_writemask(tmp[1], TGSI_WRITEMASK_X), ureg_src(l[1]), ureg_src(r[1])); 231 ureg_ADD(shader, dst, ureg_src(tmp[0]), ureg_src(tmp[1])); 232 233 for(i = 0; i < 2; ++i) { 234 ureg_release_temporary(shader, tmp[i]); 235 } 236} 237 238static void * 239create_transpose_frag_shader(struct vl_idct *idct) 240{ 241 struct pipe_resource *transpose = idct->textures.individual.transpose; 242 struct pipe_resource *intermediate = idct->textures.individual.intermediate; 243 244 struct ureg_program *shader; 245 246 struct ureg_src tc[2], sampler[2]; 247 struct ureg_src start[2]; 248 249 struct ureg_dst m[2][2]; 250 struct ureg_dst tmp, fragment; 251 252 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 253 if (!shader) 254 return NULL; 255 256 tc[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 257 tc[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_LINEAR); 258 259 sampler[0] = ureg_DECL_sampler(shader, 0); 260 sampler[1] = ureg_DECL_sampler(shader, 1); 261 262 start[0] = ureg_imm1f(shader, 0.0f); 263 start[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 264 265 fetch_four(shader, m[0], tc[0], sampler[0], start[0], false, transpose->width0); 266 fetch_one(shader, m[1], tc[1], sampler[1], start[1], true, intermediate->height0); 267 268 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 269 270 tmp = ureg_DECL_temporary(shader); 271 matrix_mul(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), m[0], m[1]); 272 ureg_MUL(shader, fragment, ureg_src(tmp), ureg_imm1f(shader, STAGE2_SCALE)); 273 274 ureg_release_temporary(shader, tmp); 275 ureg_release_temporary(shader, m[0][0]); 276 ureg_release_temporary(shader, m[0][1]); 277 ureg_release_temporary(shader, m[1][0]); 278 ureg_release_temporary(shader, m[1][1]); 279 280 ureg_END(shader); 281 282 return ureg_create_shader_and_destroy(shader, idct->pipe); 283} 284 285static void * 286create_matrix_frag_shader(struct vl_idct *idct) 287{ 288 struct pipe_resource *matrix = idct->textures.individual.matrix; 289 struct pipe_resource *source = idct->textures.individual.source; 290 291 struct ureg_program *shader; 292 293 struct ureg_src tc[2], sampler[2]; 294 struct ureg_src start[2]; 295 296 struct ureg_dst l[2], r[2]; 297 struct ureg_dst t_tc, tmp, fragment; 298 299 //unsigned i; 300 301 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 302 if (!shader) 303 return NULL; 304 305 t_tc = ureg_DECL_temporary(shader); 306 tmp = ureg_DECL_temporary(shader); 307 308 tc[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_LINEAR); 309 tc[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 310 311 sampler[0] = ureg_DECL_sampler(shader, 1); 312 sampler[1] = ureg_DECL_sampler(shader, 0); 313 314 start[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 315 start[1] = ureg_imm1f(shader, 0.0f); 316 317 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 318 319 fetch_four(shader, r, tc[1], sampler[1], start[1], true, matrix->width0); 320 321 ureg_MOV(shader, t_tc, tc[0]); 322 //for (i = 0; i < 4; ++i) { 323 324 fetch_four(shader, l, ureg_src(t_tc), sampler[0], start[0], false, source->width0); 325 matrix_mul(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X /* << i */), l, r); 326 ureg_release_temporary(shader, l[0]); 327 ureg_release_temporary(shader, l[1]); 328 329 // if (i != 3) 330 // ureg_ADD(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), 331 // ureg_src(t_tc), ureg_imm1f(shader, 1.0f / source->height0)); 332 //} 333 334 ureg_MUL(shader, fragment, ureg_src(tmp), ureg_scalar(ureg_imm1f(shader, STAGE1_SCALE), TGSI_SWIZZLE_X)); 335 336 ureg_release_temporary(shader, t_tc); 337 ureg_release_temporary(shader, tmp); 338 ureg_release_temporary(shader, r[0]); 339 ureg_release_temporary(shader, r[1]); 340 341 ureg_END(shader); 342 343 return ureg_create_shader_and_destroy(shader, idct->pipe); 344} 345 346static void * 347create_empty_block_frag_shader(struct vl_idct *idct) 348{ 349 struct ureg_program *shader; 350 struct ureg_dst fragment; 351 352 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 353 if (!shader) 354 return NULL; 355 356 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 357 358 ureg_MOV(shader, fragment, ureg_imm1f(shader, 0.0f)); 359 360 ureg_END(shader); 361 362 return ureg_create_shader_and_destroy(shader, idct->pipe); 363} 364 365static void 366xfer_buffers_map(struct vl_idct *idct) 367{ 368 struct pipe_box rect = 369 { 370 0, 0, 0, 371 idct->textures.individual.source->width0, 372 idct->textures.individual.source->height0, 373 1 374 }; 375 376 idct->tex_transfer = idct->pipe->get_transfer 377 ( 378 idct->pipe, idct->textures.individual.source, 379 u_subresource(0, 0), 380 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 381 &rect 382 ); 383 384 idct->texels = idct->pipe->transfer_map(idct->pipe, idct->tex_transfer); 385 386 idct->vectors = pipe_buffer_map 387 ( 388 idct->pipe, 389 idct->vertex_bufs.individual.pos.buffer, 390 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 391 &idct->vec_transfer 392 ); 393} 394 395static void 396xfer_buffers_unmap(struct vl_idct *idct) 397{ 398 pipe_buffer_unmap(idct->pipe, idct->vertex_bufs.individual.pos.buffer, idct->vec_transfer); 399 400 idct->pipe->transfer_unmap(idct->pipe, idct->tex_transfer); 401 idct->pipe->transfer_destroy(idct->pipe, idct->tex_transfer); 402} 403 404static bool 405init_shaders(struct vl_idct *idct) 406{ 407 idct->matrix_vs = create_vert_shader(idct, true, idct->textures.individual.intermediate); 408 idct->matrix_fs = create_matrix_frag_shader(idct); 409 410 idct->transpose_vs = create_vert_shader(idct, true, idct->destination); 411 idct->transpose_fs = create_transpose_frag_shader(idct); 412 413 idct->eb_vs = create_vert_shader(idct, false, idct->destination); 414 idct->eb_fs = create_empty_block_frag_shader(idct); 415 416 return 417 idct->transpose_vs != NULL && idct->transpose_fs != NULL && 418 idct->matrix_vs != NULL && idct->matrix_fs != NULL && 419 idct->eb_vs != NULL && idct->eb_fs != NULL; 420} 421 422static void 423cleanup_shaders(struct vl_idct *idct) 424{ 425 idct->pipe->delete_vs_state(idct->pipe, idct->transpose_vs); 426 idct->pipe->delete_fs_state(idct->pipe, idct->transpose_fs); 427 428 idct->pipe->delete_vs_state(idct->pipe, idct->matrix_vs); 429 idct->pipe->delete_fs_state(idct->pipe, idct->matrix_fs); 430 431 idct->pipe->delete_vs_state(idct->pipe, idct->eb_vs); 432 idct->pipe->delete_fs_state(idct->pipe, idct->eb_fs); 433} 434 435static bool 436init_buffers(struct vl_idct *idct) 437{ 438 struct pipe_resource template; 439 struct pipe_sampler_view sampler_view; 440 struct pipe_vertex_element vertex_elems[2]; 441 unsigned i; 442 443 idct->max_blocks = 444 align(idct->destination->width0, BLOCK_WIDTH) / BLOCK_WIDTH * 445 align(idct->destination->height0, BLOCK_HEIGHT) / BLOCK_HEIGHT * 446 idct->destination->depth0; 447 448 memset(&template, 0, sizeof(struct pipe_resource)); 449 template.target = PIPE_TEXTURE_2D; 450 template.last_level = 0; 451 template.depth0 = 1; 452 template.bind = PIPE_BIND_SAMPLER_VIEW; 453 template.flags = 0; 454 template.depth0 = 1; 455 456 template.format = PIPE_FORMAT_R16G16B16A16_SNORM; 457 template.width0 = idct->destination->width0 / 4; 458 template.height0 = idct->destination->height0; 459 template.usage = PIPE_USAGE_STREAM; 460 idct->textures.individual.source = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 461 462 template.format = PIPE_FORMAT_R16_SNORM; 463 template.width0 = idct->destination->width0; 464 template.usage = PIPE_USAGE_STATIC; 465 idct->textures.individual.intermediate = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 466 467 for (i = 0; i < 4; ++i) { 468 if(idct->textures.all[i] == NULL) 469 return false; /* a texture failed to allocate */ 470 471 u_sampler_view_default_template(&sampler_view, idct->textures.all[i], idct->textures.all[i]->format); 472 idct->sampler_views.all[i] = idct->pipe->create_sampler_view(idct->pipe, idct->textures.all[i], &sampler_view); 473 } 474 475 idct->vertex_bufs.individual.quad.stride = sizeof(struct vertex2f); 476 idct->vertex_bufs.individual.quad.max_index = 4 * idct->max_blocks - 1; 477 idct->vertex_bufs.individual.quad.buffer_offset = 0; 478 idct->vertex_bufs.individual.quad.buffer = pipe_buffer_create 479 ( 480 idct->pipe->screen, 481 PIPE_BIND_VERTEX_BUFFER, 482 sizeof(struct vertex2f) * 4 * idct->max_blocks 483 ); 484 485 if(idct->vertex_bufs.individual.quad.buffer == NULL) 486 return false; 487 488 idct->vertex_bufs.individual.pos.stride = sizeof(struct vertex2f); 489 idct->vertex_bufs.individual.pos.max_index = 4 * idct->max_blocks - 1; 490 idct->vertex_bufs.individual.pos.buffer_offset = 0; 491 idct->vertex_bufs.individual.pos.buffer = pipe_buffer_create 492 ( 493 idct->pipe->screen, 494 PIPE_BIND_VERTEX_BUFFER, 495 sizeof(struct vertex2f) * 4 * idct->max_blocks 496 ); 497 498 if(idct->vertex_bufs.individual.pos.buffer == NULL) 499 return false; 500 501 /* Rect element */ 502 vertex_elems[0].src_offset = 0; 503 vertex_elems[0].instance_divisor = 0; 504 vertex_elems[0].vertex_buffer_index = 0; 505 vertex_elems[0].src_format = PIPE_FORMAT_R32G32_FLOAT; 506 507 /* Pos element */ 508 vertex_elems[1].src_offset = 0; 509 vertex_elems[1].instance_divisor = 0; 510 vertex_elems[1].vertex_buffer_index = 1; 511 vertex_elems[1].src_format = PIPE_FORMAT_R32G32_FLOAT; 512 513 idct->vertex_elems_state = idct->pipe->create_vertex_elements_state(idct->pipe, 2, vertex_elems); 514 515 return true; 516} 517 518static void 519cleanup_buffers(struct vl_idct *idct) 520{ 521 unsigned i; 522 523 assert(idct); 524 525 for (i = 0; i < 4; ++i) { 526 pipe_sampler_view_reference(&idct->sampler_views.all[i], NULL); 527 pipe_resource_reference(&idct->textures.all[i], NULL); 528 } 529 530 idct->pipe->delete_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 531 pipe_resource_reference(&idct->vertex_bufs.individual.quad.buffer, NULL); 532 pipe_resource_reference(&idct->vertex_bufs.individual.pos.buffer, NULL); 533} 534 535static void 536init_constants(struct vl_idct *idct) 537{ 538 struct pipe_transfer *buf_transfer; 539 struct vertex2f *v; 540 541 unsigned i; 542 543 /* quad vectors */ 544 v = pipe_buffer_map 545 ( 546 idct->pipe, 547 idct->vertex_bufs.individual.quad.buffer, 548 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 549 &buf_transfer 550 ); 551 for ( i = 0; i < idct->max_blocks; ++i) 552 memcpy(v + i * 4, &const_quad, sizeof(const_quad)); 553 pipe_buffer_unmap(idct->pipe, idct->vertex_bufs.individual.quad.buffer, buf_transfer); 554} 555 556static void 557init_state(struct vl_idct *idct) 558{ 559 struct pipe_sampler_state sampler; 560 unsigned i; 561 562 idct->num_blocks = 0; 563 idct->num_empty_blocks = 0; 564 565 idct->viewport[0].scale[0] = idct->textures.individual.intermediate->width0; 566 idct->viewport[0].scale[1] = idct->textures.individual.intermediate->height0; 567 568 idct->viewport[1].scale[0] = idct->destination->width0; 569 idct->viewport[1].scale[1] = idct->destination->height0; 570 571 idct->fb_state[0].width = idct->textures.individual.intermediate->width0; 572 idct->fb_state[0].height = idct->textures.individual.intermediate->height0; 573 574 idct->fb_state[1].width = idct->destination->width0; 575 idct->fb_state[1].height = idct->destination->height0; 576 577 for(i = 0; i < 2; ++i) { 578 idct->viewport[i].scale[2] = 1; 579 idct->viewport[i].scale[3] = 1; 580 idct->viewport[i].translate[0] = 0; 581 idct->viewport[i].translate[1] = 0; 582 idct->viewport[i].translate[2] = 0; 583 idct->viewport[i].translate[3] = 0; 584 585 idct->fb_state[i].nr_cbufs = 1; 586 idct->fb_state[i].zsbuf = NULL; 587 } 588 589 for (i = 0; i < 4; ++i) { 590 memset(&sampler, 0, sizeof(sampler)); 591 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 592 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 593 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 594 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 595 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 596 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 597 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 598 sampler.compare_func = PIPE_FUNC_ALWAYS; 599 sampler.normalized_coords = 1; 600 /*sampler.shadow_ambient = ; */ 601 /*sampler.lod_bias = ; */ 602 sampler.min_lod = 0; 603 /*sampler.max_lod = ; */ 604 /*sampler.border_color[0] = ; */ 605 /*sampler.max_anisotropy = ; */ 606 idct->samplers.all[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 607 } 608} 609 610static void 611cleanup_state(struct vl_idct *idct) 612{ 613 unsigned i; 614 615 for (i = 0; i < 4; ++i) 616 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers.all[i]); 617} 618 619struct pipe_resource * 620vl_idct_upload_matrix(struct pipe_context *pipe) 621{ 622 struct pipe_resource template, *matrix; 623 struct pipe_transfer *buf_transfer; 624 unsigned i, j, pitch; 625 float *f; 626 627 struct pipe_box rect = 628 { 629 0, 0, 0, 630 BLOCK_WIDTH, 631 BLOCK_HEIGHT, 632 1 633 }; 634 635 memset(&template, 0, sizeof(struct pipe_resource)); 636 template.target = PIPE_TEXTURE_2D; 637 template.format = PIPE_FORMAT_R32G32B32A32_FLOAT; 638 template.last_level = 0; 639 template.width0 = 2; 640 template.height0 = 8; 641 template.depth0 = 1; 642 template.usage = PIPE_USAGE_IMMUTABLE; 643 template.bind = PIPE_BIND_SAMPLER_VIEW; 644 template.flags = 0; 645 646 matrix = pipe->screen->resource_create(pipe->screen, &template); 647 648 /* matrix */ 649 buf_transfer = pipe->get_transfer 650 ( 651 pipe, matrix, 652 u_subresource(0, 0), 653 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 654 &rect 655 ); 656 pitch = buf_transfer->stride / sizeof(float); 657 658 f = pipe->transfer_map(pipe, buf_transfer); 659 for(i = 0; i < BLOCK_HEIGHT; ++i) 660 for(j = 0; j < BLOCK_WIDTH; ++j) 661 f[i * pitch + j] = const_matrix[j][i]; // transpose 662 663 pipe->transfer_unmap(pipe, buf_transfer); 664 pipe->transfer_destroy(pipe, buf_transfer); 665 666 return matrix; 667} 668 669bool 670vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, struct pipe_resource *dst, struct pipe_resource *matrix) 671{ 672 assert(idct && pipe && dst); 673 674 idct->pipe = pipe; 675 pipe_resource_reference(&idct->textures.individual.matrix, matrix); 676 pipe_resource_reference(&idct->textures.individual.transpose, matrix); 677 pipe_resource_reference(&idct->destination, dst); 678 679 if(!init_buffers(idct)) 680 return false; 681 682 if(!init_shaders(idct)) { 683 cleanup_buffers(idct); 684 return false; 685 } 686 687 init_state(idct); 688 689 idct->surfaces.intermediate = idct->pipe->screen->get_tex_surface( 690 idct->pipe->screen, idct->textures.individual.intermediate, 0, 0, 0, 691 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 692 idct->fb_state[0].cbufs[0] = idct->surfaces.intermediate; 693 694 idct->surfaces.destination = idct->pipe->screen->get_tex_surface( 695 idct->pipe->screen, idct->destination, 0, 0, 0, 696 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 697 idct->fb_state[1].cbufs[0] = idct->surfaces.destination; 698 699 init_constants(idct); 700 xfer_buffers_map(idct); 701 702 return true; 703} 704 705void 706vl_idct_cleanup(struct vl_idct *idct) 707{ 708 idct->pipe->screen->tex_surface_destroy(idct->surfaces.destination); 709 idct->pipe->screen->tex_surface_destroy(idct->surfaces.intermediate); 710 711 cleanup_shaders(idct); 712 cleanup_buffers(idct); 713 714 cleanup_state(idct); 715 716 pipe_resource_reference(&idct->destination, NULL); 717} 718 719void 720vl_idct_add_block(struct vl_idct *idct, unsigned x, unsigned y, short *block) 721{ 722 struct vertex2f v, *v_dst; 723 724 unsigned tex_pitch; 725 unsigned nr_components; 726 short *texels; 727 728 unsigned i; 729 730 assert(idct); 731 732 if(block) { 733 nr_components = util_format_get_nr_components(idct->tex_transfer->resource->format); 734 735 tex_pitch = idct->tex_transfer->stride / sizeof(short); 736 texels = idct->texels + y * tex_pitch * BLOCK_HEIGHT + x * BLOCK_WIDTH; 737 738 for (i = 0; i < BLOCK_HEIGHT; ++i) 739 memcpy(texels + i * tex_pitch, block + i * BLOCK_WIDTH, BLOCK_WIDTH * sizeof(short)); 740 741 /* non empty blocks fills the vector buffer from left to right */ 742 v_dst = idct->vectors + idct->num_blocks * 4; 743 744 idct->num_blocks++; 745 746 } else { 747 748 /* while empty blocks fills the vector buffer from right to left */ 749 v_dst = idct->vectors + (idct->max_blocks - idct->num_empty_blocks) * 4 - 4; 750 751 idct->num_empty_blocks++; 752 } 753 754 v.x = x; 755 v.y = y; 756 757 for (i = 0; i < 4; ++i) { 758 v_dst[i] = v; 759 } 760} 761 762void 763vl_idct_flush(struct vl_idct *idct) 764{ 765 xfer_buffers_unmap(idct); 766 767 if(idct->num_blocks > 0) { 768 769 /* first stage */ 770 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state[0]); 771 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport[0]); 772 773 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 774 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 775 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, idct->sampler_views.stage[0]); 776 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers.stage[0]); 777 idct->pipe->bind_vs_state(idct->pipe, idct->matrix_vs); 778 idct->pipe->bind_fs_state(idct->pipe, idct->matrix_fs); 779 780 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, idct->num_blocks * 4); 781 782 /* second stage */ 783 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state[1]); 784 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport[1]); 785 786 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 787 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 788 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, idct->sampler_views.stage[1]); 789 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers.stage[1]); 790 idct->pipe->bind_vs_state(idct->pipe, idct->transpose_vs); 791 idct->pipe->bind_fs_state(idct->pipe, idct->transpose_fs); 792 793 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, idct->num_blocks * 4); 794 } 795 796 if(idct->num_empty_blocks > 0) { 797 798 /* empty block handling */ 799 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state[1]); 800 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport[1]); 801 802 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 803 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 804 idct->pipe->bind_vs_state(idct->pipe, idct->eb_vs); 805 idct->pipe->bind_fs_state(idct->pipe, idct->eb_fs); 806 807 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 808 (idct->max_blocks - idct->num_empty_blocks) * 4, 809 idct->num_empty_blocks * 4); 810 } 811 812 idct->num_blocks = 0; 813 idct->num_empty_blocks = 0; 814 xfer_buffers_map(idct); 815} 816