vl_idct.c revision e639e1b83ea65985cd84d12dc120d77cab80ba9e
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#define SCALE_FACTOR_16_TO_12 (32768.0f / 2048.0f) 42#define SCALE_FACTOR_9_TO_16 (256.0f / 32768.0f) 43 44struct vertex_shader_consts 45{ 46 struct vertex4f norm; 47}; 48 49enum VS_INPUT 50{ 51 VS_I_RECT, 52 VS_I_VPOS, 53 54 NUM_VS_INPUTS 55}; 56 57enum VS_OUTPUT 58{ 59 VS_O_VPOS, 60 VS_O_BLOCK, 61 VS_O_TEX, 62 VS_O_START, 63 VS_O_STEP 64}; 65 66 67static const float const_matrix[8][8] = { 68 { 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.353553f, 0.3535530f }, 69 { 0.4903930f, 0.4157350f, 0.2777850f, 0.0975451f, -0.0975452f, -0.2777850f, -0.415735f, -0.4903930f }, 70 { 0.4619400f, 0.1913420f, -0.1913420f, -0.4619400f, -0.4619400f, -0.1913420f, 0.191342f, 0.4619400f }, 71 { 0.4157350f, -0.0975452f, -0.4903930f, -0.2777850f, 0.2777850f, 0.4903930f, 0.097545f, -0.4157350f }, 72 { 0.3535530f, -0.3535530f, -0.3535530f, 0.3535540f, 0.3535530f, -0.3535540f, -0.353553f, 0.3535530f }, 73 { 0.2777850f, -0.4903930f, 0.0975452f, 0.4157350f, -0.4157350f, -0.0975451f, 0.490393f, -0.2777850f }, 74 { 0.1913420f, -0.4619400f, 0.4619400f, -0.1913420f, -0.1913410f, 0.4619400f, -0.461940f, 0.1913420f }, 75 { 0.0975451f, -0.2777850f, 0.4157350f, -0.4903930f, 0.4903930f, -0.4157350f, 0.277786f, -0.0975458f } 76}; 77 78static const float const_transpose[8][8] = { 79 { 0.3535530f, 0.4903930f, 0.4619400f, 0.4157350f, 0.3535530f, 0.2777850f, 0.191342f, 0.0975451f }, 80 { 0.3535530f, 0.4157350f, 0.1913420f, -0.0975452f, -0.3535530f, -0.4903930f, -0.461940f, -0.2777850f }, 81 { 0.3535530f, 0.2777850f, -0.1913420f, -0.4903930f, -0.3535530f, 0.0975452f, 0.461940f, 0.4157350f }, 82 { 0.3535530f, 0.0975451f, -0.4619400f, -0.2777850f, 0.3535540f, 0.4157350f, -0.191342f, -0.4903930f }, 83 { 0.3535530f, -0.0975452f, -0.4619400f, 0.2777850f, 0.3535530f, -0.4157350f, -0.191341f, 0.4903930f }, 84 { 0.3535530f, -0.2777850f, -0.1913420f, 0.4903930f, -0.3535540f, -0.0975451f, 0.461940f, -0.4157350f }, 85 { 0.3535530f, -0.4157350f, 0.1913420f, 0.0975450f, -0.3535530f, 0.4903930f, -0.461940f, 0.2777860f }, 86 { 0.3535530f, -0.4903930f, 0.4619400f, -0.4157350f, 0.3535530f, -0.2777850f, 0.191342f, -0.0975458f } 87}; 88 89/* vertices for a quad covering a block */ 90static const struct vertex2f const_quad[4] = { 91 {0.0f, 0.0f}, {1.0f, 0.0f}, {1.0f, 1.0f}, {0.0f, 1.0f} 92}; 93 94static void * 95create_vert_shader(struct vl_idct *idct) 96{ 97 struct ureg_program *shader; 98 struct ureg_src norm, bs; 99 struct ureg_src vrect, vpos; 100 struct ureg_dst scale, t_vpos; 101 struct ureg_dst o_vpos, o_block, o_tex, o_start, o_step; 102 103 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 104 if (!shader) 105 return NULL; 106 107 norm = ureg_DECL_constant(shader, 0); 108 bs = ureg_imm2f(shader, BLOCK_WIDTH, BLOCK_HEIGHT); 109 110 scale = ureg_DECL_temporary(shader); 111 t_vpos = ureg_DECL_temporary(shader); 112 113 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 114 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 115 116 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 117 o_block = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK); 118 o_tex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX); 119 o_start = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_START); 120 o_step = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_STEP); 121 122 /* 123 * scale = norm * mbs; 124 * 125 * t_vpos = vpos + vrect 126 * o_vpos.xy = t_vpos * scale 127 * o_vpos.zw = vpos 128 * 129 * o_block = vrect 130 * o_tex = t_pos 131 * o_start = vpos * scale 132 * o_step = norm 133 * 134 */ 135 ureg_MUL(shader, ureg_writemask(scale, TGSI_WRITEMASK_XY), norm, bs); 136 137 ureg_ADD(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), vpos, vrect); 138 ureg_MUL(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos), ureg_src(scale)); 139 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 140 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), vpos); 141 142 ureg_MOV(shader, ureg_writemask(o_tex, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 143 ureg_MOV(shader, ureg_writemask(o_block, TGSI_WRITEMASK_XY), vrect); 144 ureg_MUL(shader, ureg_writemask(o_start, TGSI_WRITEMASK_XY), vpos, ureg_src(scale)); 145 ureg_MOV(shader, ureg_writemask(o_step, TGSI_WRITEMASK_XY), norm); 146 147 ureg_release_temporary(shader, t_vpos); 148 ureg_release_temporary(shader, scale); 149 150 ureg_END(shader); 151 152 return ureg_create_shader_and_destroy(shader, idct->pipe); 153} 154 155static void 156matrix_mul(struct ureg_program *shader, struct ureg_dst dst, 157 struct ureg_src tc[2], struct ureg_src sampler[2], 158 struct ureg_src start[2], struct ureg_src step[2], 159 float scale[2]) 160{ 161 struct ureg_dst t_tc[2], m[2][2], tmp[2]; 162 unsigned i, j; 163 164 for(i = 0; i < 2; ++i) { 165 t_tc[i] = ureg_DECL_temporary(shader); 166 for(j = 0; j < 2; ++j) 167 m[i][j] = ureg_DECL_temporary(shader); 168 tmp[i] = ureg_DECL_temporary(shader); 169 } 170 171 /* 172 * m[0..1][0] = ? 173 * tmp[0..1] = dot4(m[0..1][0], m[0..1][1]) 174 * fragment = tmp[0] + tmp[1] 175 */ 176 ureg_MOV(shader, ureg_writemask(t_tc[0], TGSI_WRITEMASK_X), start[0]); 177 ureg_MOV(shader, ureg_writemask(t_tc[0], TGSI_WRITEMASK_Y), tc[0]); 178 179 ureg_MOV(shader, ureg_writemask(t_tc[1], TGSI_WRITEMASK_X), tc[1]); 180 ureg_MOV(shader, ureg_writemask(t_tc[1], TGSI_WRITEMASK_Y), start[1]); 181 182 for(i = 0; i < 2; ++i) { 183 for(j = 0; j < 4; ++j) { 184 /* Nouveau and r600g can't writemask tex dst regs (yet?), do in two steps */ 185 ureg_TEX(shader, tmp[0], TGSI_TEXTURE_2D, ureg_src(t_tc[0]), sampler[0]); 186 ureg_MOV(shader, ureg_writemask(m[i][0], TGSI_WRITEMASK_X << j), ureg_scalar(ureg_src(tmp[0]), TGSI_SWIZZLE_X)); 187 188 ureg_TEX(shader, tmp[1], TGSI_TEXTURE_2D, ureg_src(t_tc[1]), sampler[1]); 189 ureg_MOV(shader, ureg_writemask(m[i][1], TGSI_WRITEMASK_X << j), ureg_scalar(ureg_src(tmp[1]), TGSI_SWIZZLE_X)); 190 191 ureg_ADD(shader, ureg_writemask(t_tc[0], TGSI_WRITEMASK_X), ureg_src(t_tc[0]), step[0]); 192 ureg_ADD(shader, ureg_writemask(t_tc[1], TGSI_WRITEMASK_Y), ureg_src(t_tc[1]), step[1]); 193 } 194 195 if(scale[0] != 1.0f) 196 ureg_MUL(shader, m[i][0], ureg_src(m[i][0]), ureg_scalar(ureg_imm1f(shader, scale[0]), TGSI_SWIZZLE_X)); 197 198 if(scale[1] != 1.0f) 199 ureg_MUL(shader, m[i][1], ureg_src(m[i][1]), ureg_scalar(ureg_imm1f(shader, scale[1]), TGSI_SWIZZLE_X)); 200 } 201 202 ureg_DP4(shader, ureg_writemask(tmp[0], TGSI_WRITEMASK_X), ureg_src(m[0][0]), ureg_src(m[0][1])); 203 ureg_DP4(shader, ureg_writemask(tmp[1], TGSI_WRITEMASK_X), ureg_src(m[1][0]), ureg_src(m[1][1])); 204 ureg_ADD(shader, ureg_writemask(dst, TGSI_WRITEMASK_X), ureg_src(tmp[0]), ureg_src(tmp[1])); 205 206 for(i = 0; i < 2; ++i) { 207 ureg_release_temporary(shader, t_tc[i]); 208 for(j = 0; j < 2; ++j) 209 ureg_release_temporary(shader, m[i][j]); 210 ureg_release_temporary(shader, tmp[i]); 211 } 212} 213 214static void * 215create_transpose_frag_shader(struct vl_idct *idct) 216{ 217 struct ureg_program *shader; 218 struct ureg_src tc[2], sampler[2]; 219 struct ureg_src start[2], step[2]; 220 struct ureg_dst fragment; 221 float scale[2]; 222 223 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 224 if (!shader) 225 return NULL; 226 227 tc[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 228 tc[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_LINEAR); 229 230 start[0] = ureg_imm1f(shader, 0.0f); 231 start[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 232 233 step[0] = ureg_imm1f(shader, 1.0f / BLOCK_HEIGHT); 234 step[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_STEP, TGSI_INTERPOLATE_CONSTANT); 235 236 sampler[0] = ureg_DECL_sampler(shader, 0); 237 sampler[1] = ureg_DECL_sampler(shader, 2); 238 239 scale[0] = 1.0f; 240 scale[1] = SCALE_FACTOR_16_TO_12; 241 242 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 243 244 //matrix_mul(shader, fragment, tc, sampler, start, step, scale); 245 //ureg_MOV(shader, fragment, ureg_imm1f(shader, 0.0f)); 246 247 ureg_END(shader); 248 249 return ureg_create_shader_and_destroy(shader, idct->pipe); 250} 251 252static void * 253create_matrix_frag_shader(struct vl_idct *idct) 254{ 255 struct ureg_program *shader; 256 struct ureg_src tc[2], sampler[2]; 257 struct ureg_src start[2], step[2]; 258 struct ureg_dst tmp, fragment; 259 float scale[2]; 260 261 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 262 if (!shader) 263 return NULL; 264 265 tmp = ureg_DECL_temporary(shader); 266 267 tc[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_LINEAR); 268 tc[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 269 270 start[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 271 start[1] = ureg_imm1f(shader, 0.0f); 272 273 step[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_STEP, TGSI_INTERPOLATE_CONSTANT); 274 step[1] = ureg_imm1f(shader, 1.0f / BLOCK_WIDTH); 275 276 sampler[0] = ureg_DECL_sampler(shader, 3); 277 sampler[1] = ureg_DECL_sampler(shader, 1); 278 279 scale[0] = 1.0f; 280 scale[1] = 1.0f; 281 282 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 283 284// matrix_mul(shader, tmp, tc, sampler, start, step, scale); 285// ureg_MUL(shader, fragment, ureg_src(tmp), ureg_scalar(ureg_imm1f(shader, SCALE_FACTOR_9_TO_16), TGSI_SWIZZLE_X)); 286 ureg_TEX(shader, fragment, TGSI_TEXTURE_2D, tc[0], sampler[0]); 287 //ureg_MUL(shader, , ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X), ureg_imm1f(shader, 1.0f)); 288 289 ureg_END(shader); 290 291 return ureg_create_shader_and_destroy(shader, idct->pipe); 292} 293 294static void 295xfer_buffers_map(struct vl_idct *idct) 296{ 297 struct pipe_box rect = 298 { 299 0, 0, 0, 300 idct->destination->width0, 301 idct->destination->height0, 302 1 303 }; 304 305 idct->tex_transfer = idct->pipe->get_transfer 306 ( 307#if 0 308 idct->pipe, idct->textures.individual.intermediate, 309#else 310 idct->pipe, idct->destination, 311#endif 312 u_subresource(0, 0), 313 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 314 &rect 315 ); 316 317 idct->texels = idct->pipe->transfer_map(idct->pipe, idct->tex_transfer); 318 319 idct->vectors = pipe_buffer_map 320 ( 321 idct->pipe, 322 idct->vertex_bufs.individual.pos.buffer, 323 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 324 &idct->vec_transfer 325 ); 326} 327 328static void 329xfer_buffers_unmap(struct vl_idct *idct) 330{ 331 pipe_buffer_unmap(idct->pipe, idct->vertex_bufs.individual.pos.buffer, idct->vec_transfer); 332 333 idct->pipe->transfer_unmap(idct->pipe, idct->tex_transfer); 334 idct->pipe->transfer_destroy(idct->pipe, idct->tex_transfer); 335} 336 337static bool 338init_shaders(struct vl_idct *idct) 339{ 340 assert(idct); 341 342 assert(idct->vs = create_vert_shader(idct)); 343 assert(idct->transpose_fs = create_transpose_frag_shader(idct)); 344 assert(idct->matrix_fs = create_matrix_frag_shader(idct)); 345 346 return true; 347} 348 349static void 350cleanup_shaders(struct vl_idct *idct) 351{ 352 assert(idct); 353 354 idct->pipe->delete_vs_state(idct->pipe, idct->vs); 355 idct->pipe->delete_fs_state(idct->pipe, idct->transpose_fs); 356 idct->pipe->delete_fs_state(idct->pipe, idct->matrix_fs); 357} 358 359static bool 360init_buffers(struct vl_idct *idct) 361{ 362 struct pipe_resource template; 363 struct pipe_sampler_view sampler_view; 364 struct pipe_vertex_element vertex_elems[2]; 365 366 const unsigned max_blocks = 367 align(idct->destination->width0, BLOCK_WIDTH) / BLOCK_WIDTH * 368 align(idct->destination->height0, BLOCK_HEIGHT) / BLOCK_HEIGHT * 369 idct->destination->depth0; 370 371 unsigned i; 372 373 memset(&template, 0, sizeof(struct pipe_resource)); 374 template.target = PIPE_TEXTURE_2D; 375 template.format = PIPE_FORMAT_R32_FLOAT; 376 template.last_level = 0; 377 template.width0 = 8; 378 template.height0 = 8; 379 template.depth0 = 1; 380 template.usage = PIPE_USAGE_IMMUTABLE; 381 template.bind = PIPE_BIND_SAMPLER_VIEW; 382 template.flags = 0; 383 384 idct->textures.individual.matrix = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 385 idct->textures.individual.transpose = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 386 387 template.format = idct->destination->format; 388 template.width0 = idct->destination->width0; 389 template.height0 = idct->destination->height0; 390 template.depth0 = idct->destination->depth0; 391 template.usage = PIPE_USAGE_DYNAMIC; 392 idct->textures.individual.source = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 393 394 //template.format = PIPE_FORMAT_R32_FLOAT; 395 //template.usage = PIPE_USAGE_STATIC; 396 idct->textures.individual.intermediate = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 397 398 for (i = 0; i < 4; ++i) { 399 u_sampler_view_default_template(&sampler_view, idct->textures.all[i], idct->textures.all[i]->format); 400 idct->sampler_views.all[i] = idct->pipe->create_sampler_view(idct->pipe, idct->textures.all[i], &sampler_view); 401 } 402 403 idct->vertex_bufs.individual.quad.stride = sizeof(struct vertex2f); 404 idct->vertex_bufs.individual.quad.max_index = 4 * max_blocks - 1; 405 idct->vertex_bufs.individual.quad.buffer_offset = 0; 406 idct->vertex_bufs.individual.quad.buffer = pipe_buffer_create 407 ( 408 idct->pipe->screen, 409 PIPE_BIND_VERTEX_BUFFER, 410 sizeof(struct vertex2f) * 4 * max_blocks 411 ); 412 413 idct->vertex_bufs.individual.pos.stride = sizeof(struct vertex2f); 414 idct->vertex_bufs.individual.pos.max_index = 4 * max_blocks - 1; 415 idct->vertex_bufs.individual.pos.buffer_offset = 0; 416 idct->vertex_bufs.individual.pos.buffer = pipe_buffer_create 417 ( 418 idct->pipe->screen, 419 PIPE_BIND_VERTEX_BUFFER, 420 sizeof(struct vertex2f) * 4 * max_blocks 421 ); 422 423 /* Rect element */ 424 vertex_elems[0].src_offset = 0; 425 vertex_elems[0].instance_divisor = 0; 426 vertex_elems[0].vertex_buffer_index = 0; 427 vertex_elems[0].src_format = PIPE_FORMAT_R32G32_FLOAT; 428 429 /* Pos element */ 430 vertex_elems[1].src_offset = 0; 431 vertex_elems[1].instance_divisor = 0; 432 vertex_elems[1].vertex_buffer_index = 1; 433 vertex_elems[1].src_format = PIPE_FORMAT_R32G32_FLOAT; 434 435 idct->vertex_elems_state = idct->pipe->create_vertex_elements_state(idct->pipe, 2, vertex_elems); 436 437 idct->vs_const_buf = pipe_buffer_create 438 ( 439 idct->pipe->screen, 440 PIPE_BIND_CONSTANT_BUFFER, 441 sizeof(struct vertex_shader_consts) 442 ); 443 444 return true; 445} 446 447static void 448cleanup_buffers(struct vl_idct *idct) 449{ 450 unsigned i; 451 452 assert(idct); 453 454 pipe_resource_reference(&idct->vs_const_buf, NULL); 455 456 for (i = 0; i < 4; ++i) { 457 pipe_sampler_view_reference(&idct->sampler_views.all[i], NULL); 458 pipe_resource_reference(&idct->textures.all[i], NULL); 459 } 460 461 idct->pipe->delete_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 462 pipe_resource_reference(&idct->vertex_bufs.individual.quad.buffer, NULL); 463 pipe_resource_reference(&idct->vertex_bufs.individual.pos.buffer, NULL); 464} 465 466static void 467init_constants(struct vl_idct *idct) 468{ 469 struct pipe_transfer *buf_transfer; 470 struct vertex_shader_consts *vs_consts; 471 struct vertex2f *v; 472 473 unsigned i; 474 475 v = pipe_buffer_map 476 ( 477 idct->pipe, 478 idct->vertex_bufs.individual.quad.buffer, 479 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 480 &buf_transfer 481 ); 482 483 for ( i = 0; i <= idct->vertex_bufs.individual.quad.max_index; i += 4) 484 memcpy(v + i, &const_quad, sizeof(const_quad)); 485 486 pipe_buffer_unmap(idct->pipe, idct->vertex_bufs.individual.quad.buffer, buf_transfer); 487 488 489 v = pipe_buffer_map 490 ( 491 idct->pipe, 492 idct->textures.individual.matrix, 493 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 494 &buf_transfer 495 ); 496 497 memcpy(v, &const_matrix, sizeof(const_matrix)); 498 499 pipe_buffer_unmap(idct->pipe, idct->textures.individual.matrix, buf_transfer); 500 501 v = pipe_buffer_map 502 ( 503 idct->pipe, 504 idct->textures.individual.transpose, 505 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 506 &buf_transfer 507 ); 508 509 memcpy(v, &const_transpose, sizeof(const_transpose)); 510 511 pipe_buffer_unmap(idct->pipe, idct->textures.individual.transpose, buf_transfer); 512 513 vs_consts = pipe_buffer_map 514 ( 515 idct->pipe, idct->vs_const_buf, 516 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 517 &buf_transfer 518 ); 519 520 vs_consts->norm.x = 1.0f / idct->destination->width0; 521 vs_consts->norm.y = 1.0f / idct->destination->height0; 522 523 pipe_buffer_unmap(idct->pipe, idct->vs_const_buf, buf_transfer); 524} 525 526static void 527init_state(struct vl_idct *idct) 528{ 529 struct pipe_sampler_state sampler; 530 unsigned i; 531 532 idct->num_blocks = 0; 533 534 idct->viewport.scale[0] = idct->destination->width0; 535 idct->viewport.scale[1] = idct->destination->height0; 536 idct->viewport.scale[2] = 1; 537 idct->viewport.scale[3] = 1; 538 idct->viewport.translate[0] = 0; 539 idct->viewport.translate[1] = 0; 540 idct->viewport.translate[2] = 0; 541 idct->viewport.translate[3] = 0; 542 543 idct->fb_state.width = idct->destination->width0; 544 idct->fb_state.height = idct->destination->height0; 545 idct->fb_state.nr_cbufs = 1; 546 idct->fb_state.zsbuf = NULL; 547 548 for (i = 0; i < 4; ++i) { 549 memset(&sampler, 0, sizeof(sampler)); 550 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 551 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 552 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 553 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 554 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 555 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 556 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 557 sampler.compare_func = PIPE_FUNC_ALWAYS; 558 sampler.normalized_coords = 1; 559 /*sampler.shadow_ambient = ; */ 560 /*sampler.lod_bias = ; */ 561 sampler.min_lod = 0; 562 /*sampler.max_lod = ; */ 563 /*sampler.border_color[0] = ; */ 564 /*sampler.max_anisotropy = ; */ 565 idct->samplers.all[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 566 } 567} 568 569static void 570cleanup_state(struct vl_idct *idct) 571{ 572 unsigned i; 573 574 for (i = 0; i < 4; ++i) 575 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers.all[i]); 576} 577 578bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, struct pipe_resource *dst) 579{ 580 assert(idct && pipe && dst); 581 582 idct->pipe = pipe; 583 pipe_resource_reference(&idct->destination, dst); 584 585 init_state(idct); 586 587 if(!init_shaders(idct)) 588 return false; 589 590 if(!init_buffers(idct)) { 591 cleanup_shaders(idct); 592 return false; 593 } 594 595 idct->surfaces.intermediate = idct->pipe->screen->get_tex_surface( 596 idct->pipe->screen, idct->textures.individual.intermediate, 0, 0, 0, 597 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 598 599 idct->surfaces.destination = idct->pipe->screen->get_tex_surface( 600 idct->pipe->screen, idct->destination, 0, 0, 0, 601 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 602 603 init_constants(idct); 604 xfer_buffers_map(idct); 605 606 return true; 607} 608 609void vl_idct_cleanup(struct vl_idct *idct) 610{ 611 idct->pipe->screen->tex_surface_destroy(idct->surfaces.destination); 612 idct->pipe->screen->tex_surface_destroy(idct->surfaces.intermediate); 613 614 cleanup_shaders(idct); 615 cleanup_buffers(idct); 616 617 cleanup_state(idct); 618 619 pipe_resource_reference(&idct->destination, NULL); 620} 621 622void vl_idct_add_block(struct vl_idct *idct, unsigned x, unsigned y, short *block) 623{ 624 struct vertex2f v; 625 626 unsigned tex_pitch; 627 short *texels; 628 629 unsigned i; 630 631 assert(idct); 632 assert(block); 633 634 v.x = x; 635 v.y = y; 636 637 for (i = 0; i < 4; ++i) { 638 idct->vectors[idct->num_blocks * 4 + i] = v; 639 } 640 641 tex_pitch = idct->tex_transfer->stride / util_format_get_blocksize(idct->tex_transfer->resource->format); 642 texels = idct->texels + y * tex_pitch * BLOCK_HEIGHT + x * BLOCK_WIDTH; 643 644 for (i = 0; i < BLOCK_HEIGHT; ++i) 645 memcpy(texels + i * tex_pitch, block + i * BLOCK_WIDTH, BLOCK_WIDTH * 2); 646 647 idct->num_blocks++; 648} 649 650void vl_idct_flush(struct vl_idct *idct) 651{ 652 xfer_buffers_unmap(idct); 653 654 idct->pipe->set_constant_buffer(idct->pipe, PIPE_SHADER_VERTEX, 0, idct->vs_const_buf); 655 656#if 0 657 /* first stage */ 658 idct->fb_state.cbufs[0] = idct->surfaces.intermediate; 659 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state); 660 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport); 661 662 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 663 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 664 idct->pipe->set_fragment_sampler_views(idct->pipe, 4, idct->sampler_views.all); 665 idct->pipe->bind_fragment_sampler_states(idct->pipe, 4, idct->samplers.all); 666 idct->pipe->bind_vs_state(idct->pipe, idct->vs); 667 idct->pipe->bind_fs_state(idct->pipe, idct->transpose_fs); 668 669 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, idct->num_blocks * 4); 670 671 /* second stage */ 672 idct->fb_state.cbufs[0] = idct->surfaces.destination; 673 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state); 674 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport); 675 676 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 677 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 678 idct->pipe->set_fragment_sampler_views(idct->pipe, 4, idct->sampler_views.all); 679 idct->pipe->bind_fragment_sampler_states(idct->pipe, 4, idct->samplers.all); 680 idct->pipe->bind_vs_state(idct->pipe, idct->vs); 681 idct->pipe->bind_fs_state(idct->pipe, idct->matrix_fs); 682 683 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, idct->num_blocks * 4); 684 685 idct->pipe->flush(idct->pipe, PIPE_FLUSH_RENDER_CACHE, NULL); 686#endif 687 688 idct->num_blocks = 0; 689 xfer_buffers_map(idct); 690} 691