vl_idct.c revision bfb4fb057d92869f98dc627d53d3e1b7d031d93f
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 50enum VS_INPUT 51{ 52 VS_I_RECT, 53 VS_I_VPOS, 54 55 NUM_VS_INPUTS 56}; 57 58enum VS_OUTPUT 59{ 60 VS_O_VPOS, 61 VS_O_BLOCK, 62 VS_O_TEX, 63 VS_O_START 64}; 65 66static const float const_matrix[8][8] = { 67 { 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.353553f, 0.3535530f }, 68 { 0.4903930f, 0.4157350f, 0.2777850f, 0.0975451f, -0.0975452f, -0.2777850f, -0.415735f, -0.4903930f }, 69 { 0.4619400f, 0.1913420f, -0.1913420f, -0.4619400f, -0.4619400f, -0.1913420f, 0.191342f, 0.4619400f }, 70 { 0.4157350f, -0.0975452f, -0.4903930f, -0.2777850f, 0.2777850f, 0.4903930f, 0.097545f, -0.4157350f }, 71 { 0.3535530f, -0.3535530f, -0.3535530f, 0.3535540f, 0.3535530f, -0.3535540f, -0.353553f, 0.3535530f }, 72 { 0.2777850f, -0.4903930f, 0.0975452f, 0.4157350f, -0.4157350f, -0.0975451f, 0.490393f, -0.2777850f }, 73 { 0.1913420f, -0.4619400f, 0.4619400f, -0.1913420f, -0.1913410f, 0.4619400f, -0.461940f, 0.1913420f }, 74 { 0.0975451f, -0.2777850f, 0.4157350f, -0.4903930f, 0.4903930f, -0.4157350f, 0.277786f, -0.0975458f } 75}; 76 77static void * 78create_vert_shader(struct vl_idct *idct) 79{ 80 struct ureg_program *shader; 81 struct ureg_src scale; 82 struct ureg_src vrect, vpos; 83 struct ureg_dst t_vpos; 84 struct ureg_dst o_vpos, o_block, o_tex, o_start; 85 86 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 87 if (!shader) 88 return NULL; 89 90 t_vpos = ureg_DECL_temporary(shader); 91 92 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 93 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 94 95 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 96 o_block = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK); 97 o_tex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX); 98 o_start = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_START); 99 100 /* 101 * scale = (BLOCK_WIDTH, BLOCK_HEIGHT) / (dst.width, dst.height) 102 * 103 * t_vpos = vpos + vrect 104 * o_vpos.xy = t_vpos * scale 105 * o_vpos.zw = vpos 106 * 107 * o_block = vrect 108 * o_tex = t_pos 109 * o_start = vpos * scale 110 * 111 */ 112 scale = ureg_imm2f(shader, 113 (float)BLOCK_WIDTH / idct->destination->width0, 114 (float)BLOCK_HEIGHT / idct->destination->height0); 115 116 ureg_ADD(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), vpos, vrect); 117 ureg_MUL(shader, ureg_writemask(t_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos), scale); 118 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 119 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), vpos); 120 121 ureg_MOV(shader, ureg_writemask(o_block, TGSI_WRITEMASK_XY), vrect); 122 ureg_MOV(shader, ureg_writemask(o_tex, TGSI_WRITEMASK_XY), ureg_src(t_vpos)); 123 ureg_MUL(shader, ureg_writemask(o_start, TGSI_WRITEMASK_XY), vpos, scale); 124 125 ureg_release_temporary(shader, t_vpos); 126 127 ureg_END(shader); 128 129 return ureg_create_shader_and_destroy(shader, idct->pipe); 130} 131 132static void 133fetch_four(struct ureg_program *shader, struct ureg_dst m[2], 134 struct ureg_src tc, struct ureg_src sampler, 135 struct ureg_src start, struct ureg_src block, 136 bool right_side, bool transposed, float size) 137{ 138 struct ureg_dst t_tc; 139 unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y; 140 unsigned wm_tc = (right_side == transposed) ? TGSI_WRITEMASK_Y : TGSI_WRITEMASK_X; 141 142 t_tc = ureg_DECL_temporary(shader); 143 m[0] = ureg_DECL_temporary(shader); 144 m[1] = ureg_DECL_temporary(shader); 145 146 /* 147 * t_tc.x = right_side ? start.x : tc.x 148 * t_tc.y = right_side ? tc.y : start.y 149 * m[0..1] = tex(t_tc++, sampler) 150 */ 151 if(!right_side) { 152 ureg_MOV(shader, ureg_writemask(t_tc, wm_start), ureg_scalar(start, TGSI_SWIZZLE_X)); 153 ureg_MOV(shader, ureg_writemask(t_tc, wm_tc), ureg_scalar(tc, TGSI_SWIZZLE_Y)); 154 } else { 155 ureg_MOV(shader, ureg_writemask(t_tc, wm_start), ureg_scalar(start, TGSI_SWIZZLE_Y)); 156 ureg_MOV(shader, ureg_writemask(t_tc, wm_tc), ureg_scalar(tc, TGSI_SWIZZLE_X)); 157 } 158 159#if NR_RENDER_TARGETS == 8 160 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z), ureg_scalar(block, TGSI_SWIZZLE_X)); 161#else 162 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Z), ureg_imm1f(shader, 0.0f)); 163#endif 164 165 ureg_TEX(shader, m[0], TGSI_TEXTURE_3D, ureg_src(t_tc), sampler); 166 ureg_ADD(shader, ureg_writemask(t_tc, wm_start), ureg_src(t_tc), ureg_imm1f(shader, 1.0f / size)); 167 ureg_TEX(shader, m[1], TGSI_TEXTURE_3D, ureg_src(t_tc), sampler); 168 169 ureg_release_temporary(shader, t_tc); 170} 171 172static void 173matrix_mul(struct ureg_program *shader, struct ureg_dst dst, struct ureg_dst l[2], struct ureg_dst r[2]) 174{ 175 struct ureg_dst tmp[2]; 176 unsigned i; 177 178 for(i = 0; i < 2; ++i) { 179 tmp[i] = ureg_DECL_temporary(shader); 180 } 181 182 /* 183 * tmp[0..1] = dot4(m[0][0..1], m[1][0..1]) 184 * dst = tmp[0] + tmp[1] 185 */ 186 ureg_DP4(shader, ureg_writemask(tmp[0], TGSI_WRITEMASK_X), ureg_src(l[0]), ureg_src(r[0])); 187 ureg_DP4(shader, ureg_writemask(tmp[1], TGSI_WRITEMASK_X), ureg_src(l[1]), ureg_src(r[1])); 188 ureg_ADD(shader, dst, 189 ureg_scalar(ureg_src(tmp[0]), TGSI_SWIZZLE_X), 190 ureg_scalar(ureg_src(tmp[1]), TGSI_SWIZZLE_X)); 191 192 for(i = 0; i < 2; ++i) { 193 ureg_release_temporary(shader, tmp[i]); 194 } 195} 196 197static void * 198create_transpose_frag_shader(struct vl_idct *idct) 199{ 200 struct pipe_resource *transpose = idct->textures.individual.transpose; 201 struct pipe_resource *intermediate = idct->textures.individual.intermediate; 202 203 struct ureg_program *shader; 204 205 struct ureg_src block, tex, sampler[2]; 206 struct ureg_src start[2]; 207 208 struct ureg_dst l[2], r[2]; 209 struct ureg_dst tmp, fragment; 210 211 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 212 if (!shader) 213 return NULL; 214 215 block = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 216 tex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_CONSTANT); 217 218 sampler[0] = ureg_DECL_sampler(shader, 0); 219 sampler[1] = ureg_DECL_sampler(shader, 1); 220 221 start[0] = ureg_imm1f(shader, 0.0f); 222 start[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 223 224 fetch_four(shader, l, block, sampler[0], start[0], block, false, false, transpose->width0); 225 fetch_four(shader, r, tex, sampler[1], start[1], block, true, false, intermediate->height0); 226 227 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 228 229 tmp = ureg_DECL_temporary(shader); 230 matrix_mul(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), l, r); 231 ureg_MUL(shader, fragment, ureg_src(tmp), ureg_imm1f(shader, STAGE2_SCALE)); 232 233 ureg_release_temporary(shader, tmp); 234 ureg_release_temporary(shader, l[0]); 235 ureg_release_temporary(shader, l[1]); 236 ureg_release_temporary(shader, r[0]); 237 ureg_release_temporary(shader, r[1]); 238 239 ureg_END(shader); 240 241 return ureg_create_shader_and_destroy(shader, idct->pipe); 242} 243 244static void * 245create_matrix_frag_shader(struct vl_idct *idct) 246{ 247 struct pipe_resource *matrix = idct->textures.individual.matrix; 248 struct pipe_resource *source = idct->textures.individual.source; 249 250 struct ureg_program *shader; 251 252 struct ureg_src tex, block, sampler[2]; 253 struct ureg_src start[2]; 254 255 struct ureg_dst l[4][2], r[2]; 256 struct ureg_dst t_tc, tmp, fragment[NR_RENDER_TARGETS]; 257 258 unsigned i, j; 259 260 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 261 if (!shader) 262 return NULL; 263 264 t_tc = ureg_DECL_temporary(shader); 265 tmp = ureg_DECL_temporary(shader); 266 267 tex = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_TEX, TGSI_INTERPOLATE_LINEAR); 268 block = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_BLOCK, TGSI_INTERPOLATE_LINEAR); 269 270 sampler[0] = ureg_DECL_sampler(shader, 1); 271 sampler[1] = ureg_DECL_sampler(shader, 0); 272 273 start[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_START, TGSI_INTERPOLATE_CONSTANT); 274 start[1] = ureg_imm1f(shader, 0.0f); 275 276 for (i = 0; i < NR_RENDER_TARGETS; ++i) 277 fragment[i] = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, i); 278 279 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), tex); 280 for (i = 0; i < 4; ++i) { 281 fetch_four(shader, l[i], ureg_src(t_tc), sampler[0], start[0], block, false, false, source->width0); 282 ureg_MUL(shader, l[i][0], ureg_src(l[i][0]), ureg_imm1f(shader, STAGE1_SCALE)); 283 ureg_MUL(shader, l[i][1], ureg_src(l[i][1]), ureg_imm1f(shader, STAGE1_SCALE)); 284 if(i != 3) 285 ureg_ADD(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_Y), 286 ureg_src(t_tc), ureg_imm1f(shader, 1.0f / source->height0)); 287 } 288 289 for (i = 0; i < NR_RENDER_TARGETS; ++i) { 290 291#if NR_RENDER_TARGETS == 8 292 ureg_MOV(shader, ureg_writemask(t_tc, TGSI_WRITEMASK_X), ureg_imm1f(shader, 1.0f / BLOCK_WIDTH * i)); 293 fetch_four(shader, r, ureg_src(t_tc), sampler[1], start[1], block, true, true, matrix->width0); 294#elif NR_RENDER_TARGETS == 1 295 fetch_four(shader, r, block, sampler[1], start[1], block, true, true, matrix->width0); 296#else 297#error invalid number of render targets 298#endif 299 300 for (j = 0; j < 4; ++j) { 301 matrix_mul(shader, ureg_writemask(fragment[i], TGSI_WRITEMASK_X << j), l[j], r); 302 } 303 ureg_release_temporary(shader, r[0]); 304 ureg_release_temporary(shader, r[1]); 305 } 306 307 ureg_release_temporary(shader, t_tc); 308 ureg_release_temporary(shader, tmp); 309 310 for (i = 0; i < 4; ++i) { 311 ureg_release_temporary(shader, l[i][0]); 312 ureg_release_temporary(shader, l[i][1]); 313 } 314 315 ureg_END(shader); 316 317 return ureg_create_shader_and_destroy(shader, idct->pipe); 318} 319 320static bool 321init_shaders(struct vl_idct *idct) 322{ 323 idct->vs = create_vert_shader(idct); 324 idct->matrix_fs = create_matrix_frag_shader(idct); 325 idct->transpose_fs = create_transpose_frag_shader(idct); 326 327 return 328 idct->vs != NULL && 329 idct->transpose_fs != NULL && 330 idct->matrix_fs != NULL; 331} 332 333static void 334cleanup_shaders(struct vl_idct *idct) 335{ 336 idct->pipe->delete_vs_state(idct->pipe, idct->vs); 337 idct->pipe->delete_fs_state(idct->pipe, idct->matrix_fs); 338 idct->pipe->delete_fs_state(idct->pipe, idct->transpose_fs); 339} 340 341static bool 342init_buffers(struct vl_idct *idct) 343{ 344 struct pipe_resource template; 345 struct pipe_sampler_view sampler_view; 346 struct pipe_vertex_element vertex_elems[2]; 347 unsigned i; 348 349 memset(&template, 0, sizeof(struct pipe_resource)); 350 template.last_level = 0; 351 template.depth0 = 1; 352 template.bind = PIPE_BIND_SAMPLER_VIEW; 353 template.flags = 0; 354 355 template.target = PIPE_TEXTURE_2D; 356 template.format = PIPE_FORMAT_R16G16B16A16_SNORM; 357 template.width0 = idct->destination->width0 / 4; 358 template.height0 = idct->destination->height0; 359 template.depth0 = 1; 360 template.usage = PIPE_USAGE_STREAM; 361 idct->textures.individual.source = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 362 363 template.target = PIPE_TEXTURE_3D; 364 template.format = PIPE_FORMAT_R16G16B16A16_SNORM; 365 template.width0 = idct->destination->width0 / NR_RENDER_TARGETS; 366 template.height0 = idct->destination->height0 / 4; 367 template.depth0 = NR_RENDER_TARGETS; 368 template.usage = PIPE_USAGE_STATIC; 369 idct->textures.individual.intermediate = idct->pipe->screen->resource_create(idct->pipe->screen, &template); 370 371 for (i = 0; i < 4; ++i) { 372 if(idct->textures.all[i] == NULL) 373 return false; /* a texture failed to allocate */ 374 375 u_sampler_view_default_template(&sampler_view, idct->textures.all[i], idct->textures.all[i]->format); 376 idct->sampler_views.all[i] = idct->pipe->create_sampler_view(idct->pipe, idct->textures.all[i], &sampler_view); 377 } 378 379 idct->vertex_bufs.individual.quad = vl_vb_upload_quads(idct->pipe, idct->max_blocks, &vertex_elems[VS_I_RECT]); 380 381 if(idct->vertex_bufs.individual.quad.buffer == NULL) 382 return false; 383 384 /* Pos element */ 385 vertex_elems[VS_I_VPOS].src_format = PIPE_FORMAT_R32G32_FLOAT; 386 387 idct->vertex_bufs.individual.pos = vl_vb_create_buffer(idct->pipe, idct->max_blocks, &vertex_elems[VS_I_VPOS], 1, 1); 388 389 if(idct->vertex_bufs.individual.pos.buffer == NULL) 390 return false; 391 392 idct->vertex_elems_state = idct->pipe->create_vertex_elements_state(idct->pipe, 2, vertex_elems); 393 394 return true; 395} 396 397static void 398cleanup_buffers(struct vl_idct *idct) 399{ 400 unsigned i; 401 402 assert(idct); 403 404 for (i = 0; i < 4; ++i) { 405 pipe_sampler_view_reference(&idct->sampler_views.all[i], NULL); 406 pipe_resource_reference(&idct->textures.all[i], NULL); 407 } 408 409 idct->pipe->delete_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 410 pipe_resource_reference(&idct->vertex_bufs.individual.quad.buffer, NULL); 411 pipe_resource_reference(&idct->vertex_bufs.individual.pos.buffer, NULL); 412} 413 414static void 415init_state(struct vl_idct *idct) 416{ 417 struct pipe_sampler_state sampler; 418 struct pipe_rasterizer_state rs_state; 419 unsigned i; 420 421 idct->viewport[0].scale[0] = idct->textures.individual.intermediate->width0; 422 idct->viewport[0].scale[1] = idct->textures.individual.intermediate->height0; 423 424 idct->viewport[1].scale[0] = idct->destination->width0; 425 idct->viewport[1].scale[1] = idct->destination->height0; 426 427 idct->fb_state[0].width = idct->textures.individual.intermediate->width0; 428 idct->fb_state[0].height = idct->textures.individual.intermediate->height0; 429 430 idct->fb_state[0].nr_cbufs = NR_RENDER_TARGETS; 431 for(i = 0; i < NR_RENDER_TARGETS; ++i) { 432 idct->fb_state[0].cbufs[i] = idct->pipe->screen->get_tex_surface( 433 idct->pipe->screen, idct->textures.individual.intermediate, 0, 0, i, 434 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 435 } 436 437 idct->fb_state[1].width = idct->destination->width0; 438 idct->fb_state[1].height = idct->destination->height0; 439 440 idct->fb_state[1].nr_cbufs = 1; 441 idct->fb_state[1].cbufs[0] = idct->pipe->screen->get_tex_surface( 442 idct->pipe->screen, idct->destination, 0, 0, 0, 443 PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET); 444 445 for(i = 0; i < 2; ++i) { 446 idct->viewport[i].scale[2] = 1; 447 idct->viewport[i].scale[3] = 1; 448 idct->viewport[i].translate[0] = 0; 449 idct->viewport[i].translate[1] = 0; 450 idct->viewport[i].translate[2] = 0; 451 idct->viewport[i].translate[3] = 0; 452 453 idct->fb_state[i].zsbuf = NULL; 454 } 455 456 for (i = 0; i < 4; ++i) { 457 memset(&sampler, 0, sizeof(sampler)); 458 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 459 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 460 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE; 461 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 462 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 463 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 464 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 465 sampler.compare_func = PIPE_FUNC_ALWAYS; 466 sampler.normalized_coords = 1; 467 /*sampler.shadow_ambient = ; */ 468 /*sampler.lod_bias = ; */ 469 sampler.min_lod = 0; 470 /*sampler.max_lod = ; */ 471 /*sampler.border_color[0] = ; */ 472 /*sampler.max_anisotropy = ; */ 473 idct->samplers.all[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 474 } 475 476 memset(&rs_state, 0, sizeof(rs_state)); 477 /*rs_state.sprite_coord_enable */ 478 rs_state.sprite_coord_mode = PIPE_SPRITE_COORD_UPPER_LEFT; 479 rs_state.point_quad_rasterization = true; 480 rs_state.point_size = BLOCK_WIDTH; 481 rs_state.gl_rasterization_rules = false; 482 idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state); 483} 484 485static void 486cleanup_state(struct vl_idct *idct) 487{ 488 unsigned i; 489 490 for(i = 0; i < NR_RENDER_TARGETS; ++i) { 491 idct->pipe->screen->tex_surface_destroy(idct->fb_state[0].cbufs[i]); 492 } 493 494 idct->pipe->screen->tex_surface_destroy(idct->fb_state[1].cbufs[0]); 495 496 for (i = 0; i < 4; ++i) 497 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers.all[i]); 498 499 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 500} 501 502struct pipe_resource * 503vl_idct_upload_matrix(struct pipe_context *pipe) 504{ 505 struct pipe_resource template, *matrix; 506 struct pipe_transfer *buf_transfer; 507 unsigned i, j, pitch; 508 float *f; 509 510 struct pipe_box rect = 511 { 512 0, 0, 0, 513 BLOCK_WIDTH, 514 BLOCK_HEIGHT, 515 1 516 }; 517 518 memset(&template, 0, sizeof(struct pipe_resource)); 519 template.target = PIPE_TEXTURE_2D; 520 template.format = PIPE_FORMAT_R32G32B32A32_FLOAT; 521 template.last_level = 0; 522 template.width0 = 2; 523 template.height0 = 8; 524 template.depth0 = 1; 525 template.usage = PIPE_USAGE_IMMUTABLE; 526 template.bind = PIPE_BIND_SAMPLER_VIEW; 527 template.flags = 0; 528 529 matrix = pipe->screen->resource_create(pipe->screen, &template); 530 531 /* matrix */ 532 buf_transfer = pipe->get_transfer 533 ( 534 pipe, matrix, 535 u_subresource(0, 0), 536 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 537 &rect 538 ); 539 pitch = buf_transfer->stride / sizeof(float); 540 541 f = pipe->transfer_map(pipe, buf_transfer); 542 for(i = 0; i < BLOCK_HEIGHT; ++i) 543 for(j = 0; j < BLOCK_WIDTH; ++j) 544 f[i * pitch + j] = const_matrix[j][i]; // transpose 545 546 pipe->transfer_unmap(pipe, buf_transfer); 547 pipe->transfer_destroy(pipe, buf_transfer); 548 549 return matrix; 550} 551 552bool 553vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, struct pipe_resource *dst, struct pipe_resource *matrix) 554{ 555 assert(idct && pipe && dst); 556 557 idct->pipe = pipe; 558 pipe_resource_reference(&idct->textures.individual.matrix, matrix); 559 pipe_resource_reference(&idct->textures.individual.transpose, matrix); 560 pipe_resource_reference(&idct->destination, dst); 561 562 idct->max_blocks = 563 align(idct->destination->width0, BLOCK_WIDTH) / BLOCK_WIDTH * 564 align(idct->destination->height0, BLOCK_HEIGHT) / BLOCK_HEIGHT * 565 idct->destination->depth0; 566 567 if(!init_buffers(idct)) 568 return false; 569 570 if(!init_shaders(idct)) { 571 cleanup_buffers(idct); 572 return false; 573 } 574 575 if(!vl_vb_init(&idct->blocks, idct->max_blocks, 2)) { 576 cleanup_shaders(idct); 577 cleanup_buffers(idct); 578 return false; 579 } 580 581 init_state(idct); 582 583 vl_idct_map_buffers(idct); 584 585 return true; 586} 587 588void 589vl_idct_cleanup(struct vl_idct *idct) 590{ 591 vl_idct_unmap_buffers(idct); 592 593 vl_vb_cleanup(&idct->blocks); 594 cleanup_shaders(idct); 595 cleanup_buffers(idct); 596 597 cleanup_state(idct); 598 599 pipe_resource_reference(&idct->destination, NULL); 600} 601 602void 603vl_idct_map_buffers(struct vl_idct *idct) 604{ 605 assert(idct); 606 607 struct pipe_box rect = 608 { 609 0, 0, 0, 610 idct->textures.individual.source->width0, 611 idct->textures.individual.source->height0, 612 1 613 }; 614 615 idct->tex_transfer = idct->pipe->get_transfer 616 ( 617 idct->pipe, idct->textures.individual.source, 618 u_subresource(0, 0), 619 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 620 &rect 621 ); 622 623 idct->texels = idct->pipe->transfer_map(idct->pipe, idct->tex_transfer); 624} 625 626void 627vl_idct_add_block(struct vl_idct *idct, unsigned x, unsigned y, short *block) 628{ 629 struct vertex2f v; 630 unsigned tex_pitch; 631 short *texels; 632 633 unsigned i; 634 635 assert(idct); 636 637 tex_pitch = idct->tex_transfer->stride / sizeof(short); 638 texels = idct->texels + y * tex_pitch * BLOCK_HEIGHT + x * BLOCK_WIDTH; 639 640 for (i = 0; i < BLOCK_HEIGHT; ++i) 641 memcpy(texels + i * tex_pitch, block + i * BLOCK_WIDTH, BLOCK_WIDTH * sizeof(short)); 642 643 v.x = x; 644 v.y = y; 645 vl_vb_add_block(&idct->blocks, (float*)&v); 646} 647 648void 649vl_idct_unmap_buffers(struct vl_idct *idct) 650{ 651 assert(idct); 652 653 idct->pipe->transfer_unmap(idct->pipe, idct->tex_transfer); 654 idct->pipe->transfer_destroy(idct->pipe, idct->tex_transfer); 655} 656 657void 658vl_idct_flush(struct vl_idct *idct) 659{ 660 struct pipe_transfer *vec_transfer; 661 void *vectors; 662 unsigned num_verts; 663 664 assert(idct); 665 666 vectors = pipe_buffer_map 667 ( 668 idct->pipe, 669 idct->vertex_bufs.individual.pos.buffer, 670 PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 671 &vec_transfer 672 ); 673 674 num_verts = vl_vb_upload(&idct->blocks, vectors); 675 676 pipe_buffer_unmap(idct->pipe, idct->vertex_bufs.individual.pos.buffer, vec_transfer); 677 678 if(num_verts > 0) { 679 680 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 681 idct->pipe->set_vertex_buffers(idct->pipe, 2, idct->vertex_bufs.all); 682 idct->pipe->bind_vertex_elements_state(idct->pipe, idct->vertex_elems_state); 683 idct->pipe->bind_vs_state(idct->pipe, idct->vs); 684 685 /* first stage */ 686 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state[0]); 687 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport[0]); 688 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, idct->sampler_views.stage[0]); 689 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers.stage[0]); 690 idct->pipe->bind_fs_state(idct->pipe, idct->matrix_fs); 691 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, num_verts); 692 693 /* second stage */ 694 idct->pipe->set_framebuffer_state(idct->pipe, &idct->fb_state[1]); 695 idct->pipe->set_viewport_state(idct->pipe, &idct->viewport[1]); 696 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, idct->sampler_views.stage[1]); 697 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers.stage[1]); 698 idct->pipe->bind_fs_state(idct->pipe, idct->transpose_fs); 699 util_draw_arrays(idct->pipe, PIPE_PRIM_QUADS, 0, num_verts); 700 } 701} 702