vl_idct.c revision 9af3c243d958dd5b9802dda321ab980c83cb8cb8
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 "vl_vertex_buffers.h" 30#include "util/u_draw.h" 31#include <assert.h> 32#include <pipe/p_context.h> 33#include <pipe/p_screen.h> 34#include <util/u_inlines.h> 35#include <util/u_sampler.h> 36#include <util/u_format.h> 37#include <tgsi/tgsi_ureg.h> 38#include "vl_types.h" 39 40#define BLOCK_WIDTH 8 41#define BLOCK_HEIGHT 8 42 43#define SCALE_FACTOR_16_TO_9 (32768.0f / 256.0f) 44 45#define STAGE1_SCALE 4.0f 46#define STAGE2_SCALE (SCALE_FACTOR_16_TO_9 / STAGE1_SCALE) 47 48#define NR_RENDER_TARGETS 1 49 50struct vertex_shader_consts 51{ 52 struct vertex4f norm; 53}; 54 55enum VS_INPUT 56{ 57 VS_I_RECT, 58 VS_I_VPOS, 59 60 NUM_VS_INPUTS 61}; 62 63enum VS_OUTPUT 64{ 65 VS_O_VPOS, 66 VS_O_BLOCK, 67 VS_O_TEX, 68 VS_O_START 69}; 70 71static const float const_matrix[8][8] = { 72 { 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.353553f, 0.3535530f }, 73 { 0.4903930f, 0.4157350f, 0.2777850f, 0.0975451f, -0.0975452f, -0.2777850f, -0.415735f, -0.4903930f }, 74 { 0.4619400f, 0.1913420f, -0.1913420f, -0.4619400f, -0.4619400f, -0.1913420f, 0.191342f, 0.4619400f }, 75 { 0.4157350f, -0.0975452f, -0.4903930f, -0.2777850f, 0.2777850f, 0.4903930f, 0.097545f, -0.4157350f }, 76 { 0.3535530f, -0.3535530f, -0.3535530f, 0.3535540f, 0.3535530f, -0.3535540f, -0.353553f, 0.3535530f }, 77 { 0.2777850f, -0.4903930f, 0.0975452f, 0.4157350f, -0.4157350f, -0.0975451f, 0.490393f, -0.2777850f }, 78 { 0.1913420f, -0.4619400f, 0.4619400f, -0.1913420f, -0.1913410f, 0.4619400f, -0.461940f, 0.1913420f }, 79 { 0.0975451f, -0.2777850f, 0.4157350f, -0.4903930f, 0.4903930f, -0.4157350f, 0.277786f, -0.0975458f } 80}; 81 82static void * 83create_vert_shader(struct vl_idct *idct, bool calc_src_cords) 84{ 85 struct ureg_program *shader; 86 struct ureg_src scale; 87 struct ureg_src vrect, vpos; 88 struct ureg_dst t_vpos; 89 struct ureg_dst o_vpos, o_block, o_tex, o_start; 90 91 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 92 if (!shader) 93 return NULL; 94 95 t_vpos = ureg_DECL_temporary(shader); 96 97 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 98 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 99 100 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 101 102 /* 103 * scale = (BLOCK_WIDTH, BLOCK_HEIGHT) / (dst.width, dst.height) 104 * 105 * t_vpos = vpos + vrect 106 * o_vpos.xy = t_vpos * scale 107 * o_vpos.zw = vpos 108 * 109 * o_block = vrect 110 * o_tex = t_pos 111 * o_start = vpos * scale 112 * 113 */ 114 scale = ureg_imm2f(shader, 115 (float)BLOCK_WIDTH / idct->destination->width0, 116 (float)BLOCK_HEIGHT / idct->destination->height0); 117 118 ureg_ADD(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), vpos, vrect); 119 ureg_MUL(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos), scale); 120 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 121 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), vpos); 122 123 if(calc_src_cords) { 124 o_block = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK); 125 o_tex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX); 126 o_start = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_START); 127 128 ureg_MOV(shader, ureg_writemask(o_block, TGSI_WRITEMASK_XY), vrect); 129 ureg_MOV(shader, ureg_writemask(o_tex, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 130 ureg_MUL(shader, ureg_writemask(o_start, TGSI_WRITEMASK_XY), vpos, scale); 131 } 132 133 ureg_release_temporary(shader, t_vpos); 134 135 ureg_END(shader); 136 137 return ureg_create_shader_and_destroy(shader, idct->pipe); 138} 139 140static void 141fetch_four(struct ureg_program *shader, struct ureg_dst m[2], 142 struct ureg_src tc, struct ureg_src sampler, 143 struct ureg_src start, struct ureg_src block, 144 bool right_side, bool transposed, float size) 145{ 146 struct ureg_dst t_tc; 147 unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y; 148 unsigned wm_tc = (right_side == transposed) ? TGSI_WRITEMASK_Y : TGSI_WRITEMASK_X; 149 150 t_tc = ureg_DECL_temporary(shader); 151 m[0] = ureg_DECL_temporary(shader); 152 m[1] = ureg_DECL_temporary(shader); 153 154 /* 155 * t_tc.x = right_side ? start.x : tc.x 156 * t_tc.y = right_side ? tc.y : start.y 157 * m[0..1] = tex(t_tc++, sampler) 158 */ 159 if(!right_side) { 160 ureg_MOV(shader, ureg_writemask(t_tc, wm_start), ureg_scalar(start, TGSI_SWIZZLE_X)); 161 ureg_MOV(shader, ureg_writemask(t_tc, wm_tc), ureg_scalar(tc, TGSI_SWIZZLE_Y)); 162 } else { 163 ureg_MOV(shader, ureg_writemask(t_tc, wm_start), ureg_scalar(start, TGSI_SWIZZLE_Y)); 164 ureg_MOV(shader, ureg_writemask(t_tc, wm_tc), ureg_scalar(tc, TGSI_SWIZZLE_X)); 165 } 166 167#if NR_RENDER_TARGETS == 8 168 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z), ureg_scalar(block, TGSI_SWIZZLE_X)); 169#else 170 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z), ureg_imm1f(shader, 0.0f)); 171#endif 172 173 ureg_TEX(shader, m[0], TGSI_TEXTURE_3D, ureg_src(t_tc), sampler); 174 ureg_ADD(shader, ureg_writemask(t_tc, wm_start), ureg_src(t_tc), ureg_imm1f(shader, 1.0f / size)); 175 ureg_TEX(shader, m[1], TGSI_TEXTURE_3D, ureg_src(t_tc), sampler); 176 177 ureg_release_temporary(shader, t_tc); 178} 179 180static void 181matrix_mul(struct ureg_program *shader, struct ureg_dst dst, struct ureg_dst l[2], struct ureg_dst r[2]) 182{ 183 struct ureg_dst tmp[2]; 184 unsigned i; 185 186 for(i = 0; i < 2; ++i) { 187 tmp[i] = ureg_DECL_temporary(shader); 188 } 189 190 /* 191 * tmp[0..1] = dot4(m[0][0..1], m[1][0..1]) 192 * dst = tmp[0] + tmp[1] 193 */ 194 ureg_DP4(shader, ureg_writemask(tmp[0], TGSI_WRITEMASK_X), ureg_src(l[0]), ureg_src(r[0])); 195 ureg_DP4(shader, ureg_writemask(tmp[1], TGSI_WRITEMASK_X), ureg_src(l[1]), ureg_src(r[1])); 196 ureg_ADD(shader, dst, 197 ureg_scalar(ureg_src(tmp[0]), TGSI_SWIZZLE_X), 198 ureg_scalar(ureg_src(tmp[1]), TGSI_SWIZZLE_X)); 199 200 for(i = 0; i < 2; ++i) { 201 ureg_release_temporary(shader, tmp[i]); 202 } 203} 204 205static void * 206create_transpose_frag_shader(struct vl_idct *idct) 207{ 208 struct pipe_resource *transpose = idct->textures.individual.transpose; 209 struct pipe_resource *intermediate = idct->textures.individual.intermediate; 210 211 struct ureg_program *shader; 212 213 struct ureg_src block, tex, sampler[2]; 214 struct ureg_src start[2]; 215 216 struct ureg_dst m[2][2]; 217 struct ureg_dst tmp, fragment; 218 219 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 220 if (!shader) 221 return NULL; 222 223 block = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 224 tex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_CONSTANT); 225 226 sampler[0] = ureg_DECL_sampler(shader, 0); 227 sampler[1] = ureg_DECL_sampler(shader, 1); 228 229 start[0] = ureg_imm1f(shader, 0.0f); 230 start[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 231 232 fetch_four(shader, m[0], block, sampler[0], start[0], block, false, false, transpose->width0); 233 fetch_four(shader, m[1], tex, sampler[1], start[1], block, true, false, intermediate->height0); 234 235 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 236 237 tmp = ureg_DECL_temporary(shader); 238 matrix_mul(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), m[0], m[1]); 239 ureg_MUL(shader, fragment, ureg_src(tmp), ureg_imm1f(shader, STAGE2_SCALE)); 240 241 ureg_release_temporary(shader, tmp); 242 ureg_release_temporary(shader, m[0][0]); 243 ureg_release_temporary(shader, m[0][1]); 244 ureg_release_temporary(shader, m[1][0]); 245 ureg_release_temporary(shader, m[1][1]); 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 pipe_resource *matrix = idct->textures.individual.matrix; 256 struct pipe_resource *source = idct->textures.individual.source; 257 258 struct ureg_program *shader; 259 260 struct ureg_src tex, block, sampler[2]; 261 struct ureg_src start[2]; 262 263 struct ureg_dst l[4][2], r[2]; 264 struct ureg_dst t_tc, tmp, fragment[NR_RENDER_TARGETS]; 265 266 unsigned i, j; 267 268 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 269 if (!shader) 270 return NULL; 271 272 t_tc = ureg_DECL_temporary(shader); 273 tmp = ureg_DECL_temporary(shader); 274 275 tex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_LINEAR); 276 block = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 277 278 sampler[0] = ureg_DECL_sampler(shader, 1); 279 sampler[1] = ureg_DECL_sampler(shader, 0); 280 281 start[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 282 start[1] = ureg_imm1f(shader, 0.0f); 283 284 for (i = 0; i < NR_RENDER_TARGETS; ++i) 285 fragment[i] = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, i); 286 287 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), tex); 288 for (i = 0; i < 4; ++i) { 289 fetch_four(shader, l[i], ureg_src(t_tc), sampler[0], start[0], block, false, false, source->width0); 290 ureg_MUL(shader, l[i][0], ureg_src(l[i][0]), ureg_imm1f(shader, STAGE1_SCALE)); 291 ureg_MUL(shader, l[i][1], ureg_src(l[i][1]), ureg_imm1f(shader, STAGE1_SCALE)); 292 if(i != 3) 293 ureg_ADD(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), 294 ureg_src(t_tc), ureg_imm1f(shader, 1.0f / source->height0)); 295 } 296 297 for (i = 0; i < NR_RENDER_TARGETS; ++i) { 298 299#if NR_RENDER_TARGETS == 8 300 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X), ureg_imm1f(shader, 1.0f / BLOCK_WIDTH * i)); 301 fetch_four(shader, r, ureg_src(t_tc), sampler[1], start[1], block, true, true, matrix->width0); 302#elif NR_RENDER_TARGETS == 1 303 fetch_four(shader, r, block, sampler[1], start[1], block, true, true, matrix->width0); 304#else 305#error invalid number of render targets 306#endif 307 308 for (j = 0; j < 4; ++j) { 309 matrix_mul(shader, ureg_writemask(fragment[i], TGSI_WRITEMASK_X << j), l[j], r); 310 } 311 ureg_release_temporary(shader, r[0]); 312 ureg_release_temporary(shader, r[1]); 313 } 314 315 ureg_release_temporary(shader, t_tc); 316 ureg_release_temporary(shader, tmp); 317 318 for (i = 0; i < 4; ++i) { 319 ureg_release_temporary(shader, l[i][0]); 320 ureg_release_temporary(shader, l[i][1]); 321 } 322 323 ureg_END(shader); 324 325 return ureg_create_shader_and_destroy(shader, idct->pipe); 326} 327 328static void * 329create_empty_block_frag_shader(struct vl_idct *idct) 330{ 331 struct ureg_program *shader; 332 struct ureg_dst fragment; 333 334 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 335 if (!shader) 336 return NULL; 337 338 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 339 340 ureg_MOV(shader, fragment, ureg_imm1f(shader, 0.0f)); 341 342 ureg_END(shader); 343 344 return ureg_create_shader_and_destroy(shader, idct->pipe); 345} 346 347static bool 348init_shaders(struct vl_idct *idct) 349{ 350 idct->matrix_vs = create_vert_shader(idct, true); 351 idct->matrix_fs = create_matrix_frag_shader(idct); 352 353 idct->transpose_vs = create_vert_shader(idct, true); 354 idct->transpose_fs = create_transpose_frag_shader(idct); 355 356 idct->eb_vs = create_vert_shader(idct, false); 357 idct->eb_fs = create_empty_block_frag_shader(idct); 358 359 return 360 idct->transpose_vs != NULL && idct->transpose_fs != NULL && 361 idct->matrix_vs != NULL && idct->matrix_fs != NULL && 362 idct->eb_vs != NULL && idct->eb_fs != NULL; 363} 364 365static void 366cleanup_shaders(struct vl_idct *idct) 367{ 368 idct->pipe->delete_vs_state(idct->pipe, idct->transpose_vs); 369 idct->pipe->delete_fs_state(idct->pipe, idct->transpose_fs); 370 371 idct->pipe->delete_vs_state(idct->pipe, idct->matrix_vs); 372 idct->pipe->delete_fs_state(idct->pipe, idct->matrix_fs); 373 374 idct->pipe->delete_vs_state(idct->pipe, idct->eb_vs); 375 idct->pipe->delete_fs_state(idct->pipe, idct->eb_fs); 376} 377 378static bool 379init_buffers(struct vl_idct *idct) 380{ 381 struct pipe_resource template; 382 struct pipe_sampler_view sampler_view; 383 struct pipe_vertex_element vertex_elems[2]; 384 unsigned i; 385 386 memset(&template, 0, sizeof(struct pipe_resource)); 387 template.last_level = 0; 388 template.depth0 = 1; 389 template.bind = PIPE_BIND_SAMPLER_VIEW; 390 template.flags = 0; 391 392 template.target = PIPE_TEXTURE_2D; 393 template.format = PIPE_FORMAT_R16G16B16A16_SNORM; 394 template.width0 = idct->destination->width0 / 4; 395 template.height0 = idct->destination->height0; 396 template.depth0 = 1; 397 template.usage = PIPE_USAGE_STREAM; 398 idct->textures.individual.source = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 399 400 template.target = PIPE_TEXTURE_3D; 401 template.format = PIPE_FORMAT_R16G16B16A16_SNORM; 402 template.width0 = idct->destination->width0 / NR_RENDER_TARGETS; 403 template.height0 = idct->destination->height0 / 4; 404 template.depth0 = NR_RENDER_TARGETS; 405 template.usage = PIPE_USAGE_STATIC; 406 idct->textures.individual.intermediate = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 407 408 for (i = 0; i < 4; ++i) { 409 if(idct->textures.all[i] == NULL) 410 return false; /* a texture failed to allocate */ 411 412 u_sampler_view_default_template(&sampler_view, idct->textures.all[i], idct->textures.all[i]->format); 413 idct->sampler_views.all[i] = idct->pipe->create_sampler_view(idct->pipe, idct->textures.all[i], &sampler_view); 414 } 415 416 idct->vertex_bufs.individual.quad = vl_vb_upload_quads(idct->pipe, idct->max_blocks); 417 418 if(idct->vertex_bufs.individual.quad.buffer == NULL) 419 return false; 420 421 idct->vertex_bufs.individual.pos.stride = sizeof(struct vertex2f); 422 idct->vertex_bufs.individual.pos.max_index = 4 * idct->max_blocks - 1; 423 idct->vertex_bufs.individual.pos.buffer_offset = 0; 424 idct->vertex_bufs.individual.pos.buffer = pipe_buffer_create 425 ( 426 idct->pipe->screen, 427 PIPE_BIND_VERTEX_BUFFER, 428 sizeof(struct vertex2f) * 4 * idct->max_blocks 429 ); 430 431 if(idct->vertex_bufs.individual.pos.buffer == NULL) 432 return false; 433 434 /* Rect element */ 435 vertex_elems[0].src_offset = 0; 436 vertex_elems[0].instance_divisor = 0; 437 vertex_elems[0].vertex_buffer_index = 0; 438 vertex_elems[0].src_format = PIPE_FORMAT_R32G32_FLOAT; 439 440 /* Pos element */ 441 vertex_elems[1].src_offset = 0; 442 vertex_elems[1].instance_divisor = 0; 443 vertex_elems[1].vertex_buffer_index = 1; 444 vertex_elems[1].src_format = PIPE_FORMAT_R32G32_FLOAT; 445 446 idct->vertex_elems_state = idct->pipe->create_vertex_elements_state(idct->pipe, 2, vertex_elems); 447 448 return true; 449} 450 451static void 452cleanup_buffers(struct vl_idct *idct) 453{ 454 unsigned i; 455 456 assert(idct); 457 458 for (i = 0; i < 4; ++i) { 459 pipe_sampler_view_reference(&idct->sampler_views.all[i], NULL); 460 pipe_resource_reference(&idct->textures.all[i], NULL); 461 } 462 463 idct->pipe->delete_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 464 pipe_resource_reference(&idct->vertex_bufs.individual.quad.buffer, NULL); 465 pipe_resource_reference(&idct->vertex_bufs.individual.pos.buffer, NULL); 466} 467 468static void 469init_state(struct vl_idct *idct) 470{ 471 struct pipe_sampler_state sampler; 472 struct pipe_rasterizer_state rs_state; 473 unsigned i; 474 475 idct->viewport[0].scale[0] = idct->textures.individual.intermediate->width0; 476 idct->viewport[0].scale[1] = idct->textures.individual.intermediate->height0; 477 478 idct->viewport[1].scale[0] = idct->destination->width0; 479 idct->viewport[1].scale[1] = idct->destination->height0; 480 481 idct->fb_state[0].width = idct->textures.individual.intermediate->width0; 482 idct->fb_state[0].height = idct->textures.individual.intermediate->height0; 483 484 idct->fb_state[0].nr_cbufs = NR_RENDER_TARGETS; 485 for(i = 0; i < NR_RENDER_TARGETS; ++i) { 486 idct->fb_state[0].cbufs[i] = idct->pipe->screen->get_tex_surface( 487 idct->pipe->screen, idct->textures.individual.intermediate, 0, 0, i, 488 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 489 } 490 491 idct->fb_state[1].width = idct->destination->width0; 492 idct->fb_state[1].height = idct->destination->height0; 493 494 idct->fb_state[1].nr_cbufs = 1; 495 idct->fb_state[1].cbufs[0] = idct->pipe->screen->get_tex_surface( 496 idct->pipe->screen, idct->destination, 0, 0, 0, 497 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 498 499 for(i = 0; i < 2; ++i) { 500 idct->viewport[i].scale[2] = 1; 501 idct->viewport[i].scale[3] = 1; 502 idct->viewport[i].translate[0] = 0; 503 idct->viewport[i].translate[1] = 0; 504 idct->viewport[i].translate[2] = 0; 505 idct->viewport[i].translate[3] = 0; 506 507 idct->fb_state[i].zsbuf = NULL; 508 } 509 510 for (i = 0; i < 4; ++i) { 511 memset(&sampler, 0, sizeof(sampler)); 512 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 513 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 514 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 515 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 516 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 517 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 518 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 519 sampler.compare_func = PIPE_FUNC_ALWAYS; 520 sampler.normalized_coords = 1; 521 /*sampler.shadow_ambient = ; */ 522 /*sampler.lod_bias = ; */ 523 sampler.min_lod = 0; 524 /*sampler.max_lod = ; */ 525 /*sampler.border_color[0] = ; */ 526 /*sampler.max_anisotropy = ; */ 527 idct->samplers.all[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 528 } 529 530 memset(&rs_state, 0, sizeof(rs_state)); 531 /*rs_state.sprite_coord_enable */ 532 rs_state.sprite_coord_mode = PIPE_SPRITE_COORD_UPPER_LEFT; 533 rs_state.point_quad_rasterization = true; 534 rs_state.point_size = BLOCK_WIDTH; 535 rs_state.gl_rasterization_rules = false; 536 idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state); 537} 538 539static void 540cleanup_state(struct vl_idct *idct) 541{ 542 unsigned i; 543 544 for(i = 0; i < NR_RENDER_TARGETS; ++i) { 545 idct->pipe->screen->tex_surface_destroy(idct->fb_state[0].cbufs[i]); 546 } 547 548 idct->pipe->screen->tex_surface_destroy(idct->fb_state[1].cbufs[0]); 549 550 for (i = 0; i < 4; ++i) 551 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers.all[i]); 552 553 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 554} 555 556struct pipe_resource * 557vl_idct_upload_matrix(struct pipe_context *pipe) 558{ 559 struct pipe_resource template, *matrix; 560 struct pipe_transfer *buf_transfer; 561 unsigned i, j, pitch; 562 float *f; 563 564 struct pipe_box rect = 565 { 566 0, 0, 0, 567 BLOCK_WIDTH, 568 BLOCK_HEIGHT, 569 1 570 }; 571 572 memset(&template, 0, sizeof(struct pipe_resource)); 573 template.target = PIPE_TEXTURE_2D; 574 template.format = PIPE_FORMAT_R32G32B32A32_FLOAT; 575 template.last_level = 0; 576 template.width0 = 2; 577 template.height0 = 8; 578 template.depth0 = 1; 579 template.usage = PIPE_USAGE_IMMUTABLE; 580 template.bind = PIPE_BIND_SAMPLER_VIEW; 581 template.flags = 0; 582 583 matrix = pipe->screen->resource_create(pipe->screen, &template); 584 585 /* matrix */ 586 buf_transfer = pipe->get_transfer 587 ( 588 pipe, matrix, 589 u_subresource(0, 0), 590 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 591 &rect 592 ); 593 pitch = buf_transfer->stride / sizeof(float); 594 595 f = pipe->transfer_map(pipe, buf_transfer); 596 for(i = 0; i < BLOCK_HEIGHT; ++i) 597 for(j = 0; j < BLOCK_WIDTH; ++j) 598 f[i * pitch + j] = const_matrix[j][i]; // transpose 599 600 pipe->transfer_unmap(pipe, buf_transfer); 601 pipe->transfer_destroy(pipe, buf_transfer); 602 603 return matrix; 604} 605 606static void 607xfer_buffers_map(struct vl_idct *idct) 608{ 609 struct pipe_box rect = 610 { 611 0, 0, 0, 612 idct->textures.individual.source->width0, 613 idct->textures.individual.source->height0, 614 1 615 }; 616 617 idct->tex_transfer = idct->pipe->get_transfer 618 ( 619 idct->pipe, idct->textures.individual.source, 620 u_subresource(0, 0), 621 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 622 &rect 623 ); 624 625 idct->texels = idct->pipe->transfer_map(idct->pipe, idct->tex_transfer); 626} 627 628static void 629xfer_buffers_unmap(struct vl_idct *idct) 630{ 631 idct->pipe->transfer_unmap(idct->pipe, idct->tex_transfer); 632 idct->pipe->transfer_destroy(idct->pipe, idct->tex_transfer); 633} 634 635bool 636vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, struct pipe_resource *dst, struct pipe_resource *matrix) 637{ 638 assert(idct && pipe && dst); 639 640 idct->pipe = pipe; 641 pipe_resource_reference(&idct->textures.individual.matrix, matrix); 642 pipe_resource_reference(&idct->textures.individual.transpose, matrix); 643 pipe_resource_reference(&idct->destination, dst); 644 645 idct->max_blocks = 646 align(idct->destination->width0, BLOCK_WIDTH) / BLOCK_WIDTH * 647 align(idct->destination->height0, BLOCK_HEIGHT) / BLOCK_HEIGHT * 648 idct->destination->depth0; 649 650 if(!init_buffers(idct)) 651 return false; 652 653 if(!init_shaders(idct)) { 654 cleanup_buffers(idct); 655 return false; 656 } 657 658 if(!vl_vb_init(&idct->blocks, idct->max_blocks)) { 659 cleanup_shaders(idct); 660 cleanup_buffers(idct); 661 return false; 662 } 663 664 init_state(idct); 665 666 xfer_buffers_map(idct); 667 668 return true; 669} 670 671void 672vl_idct_cleanup(struct vl_idct *idct) 673{ 674 vl_vb_cleanup(&idct->blocks); 675 cleanup_shaders(idct); 676 cleanup_buffers(idct); 677 678 cleanup_state(idct); 679 680 pipe_resource_reference(&idct->destination, NULL); 681} 682 683void 684vl_idct_add_block(struct vl_idct *idct, unsigned x, unsigned y, short *block) 685{ 686 unsigned tex_pitch; 687 short *texels; 688 689 unsigned i; 690 691 assert(idct); 692 693 tex_pitch = idct->tex_transfer->stride / sizeof(short); 694 texels = idct->texels + y * tex_pitch * BLOCK_HEIGHT + x * BLOCK_WIDTH; 695 696 for (i = 0; i < BLOCK_HEIGHT; ++i) 697 memcpy(texels + i * tex_pitch, block + i * BLOCK_WIDTH, BLOCK_WIDTH * sizeof(short)); 698 699 vl_vb_add_block(&idct->blocks, x, y); 700} 701 702void 703vl_idct_flush(struct vl_idct *idct) 704{ 705 struct pipe_transfer *vec_transfer; 706 struct quadf *vectors; 707 unsigned num_blocks; 708 709 assert(idct); 710 711 vectors = pipe_buffer_map 712 ( 713 idct->pipe, 714 idct->vertex_bufs.individual.pos.buffer, 715 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 716 &vec_transfer 717 ); 718 719 num_blocks = vl_vb_upload(&idct->blocks, vectors); 720 721 pipe_buffer_unmap(idct->pipe, idct->vertex_bufs.individual.pos.buffer, vec_transfer); 722 723 xfer_buffers_unmap(idct); 724 725 if(num_blocks > 0) { 726 727 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 728 729 /* first stage */ 730 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state[0]); 731 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport[0]); 732 733 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 734 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 735 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, idct->sampler_views.stage[0]); 736 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers.stage[0]); 737 idct->pipe->bind_vs_state(idct->pipe, idct->matrix_vs); 738 idct->pipe->bind_fs_state(idct->pipe, idct->matrix_fs); 739 740 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, num_blocks * 4); 741 742 /* second stage */ 743 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state[1]); 744 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport[1]); 745 746 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 747 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 748 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, idct->sampler_views.stage[1]); 749 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers.stage[1]); 750 idct->pipe->bind_vs_state(idct->pipe, idct->transpose_vs); 751 idct->pipe->bind_fs_state(idct->pipe, idct->transpose_fs); 752 753 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, num_blocks * 4); 754 } 755 756 xfer_buffers_map(idct); 757} 758