vl_idct.c revision 7f04fe5338d0846ec9a6003033da5357d2785c8b
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 <assert.h> 29 30#include <pipe/p_context.h> 31#include <pipe/p_screen.h> 32 33#include <util/u_draw.h> 34#include <util/u_sampler.h> 35 36#include <tgsi/tgsi_ureg.h> 37 38#include "vl_defines.h" 39#include "vl_types.h" 40#include "vl_vertex_buffers.h" 41#include "vl_idct.h" 42 43enum VS_OUTPUT 44{ 45 VS_O_VPOS, 46 VS_O_L_ADDR0, 47 VS_O_L_ADDR1, 48 VS_O_R_ADDR0, 49 VS_O_R_ADDR1 50}; 51 52static const float const_matrix[8][8] = { 53 { 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.3535530f, 0.353553f, 0.3535530f }, 54 { 0.4903930f, 0.4157350f, 0.2777850f, 0.0975451f, -0.0975452f, -0.2777850f, -0.415735f, -0.4903930f }, 55 { 0.4619400f, 0.1913420f, -0.1913420f, -0.4619400f, -0.4619400f, -0.1913420f, 0.191342f, 0.4619400f }, 56 { 0.4157350f, -0.0975452f, -0.4903930f, -0.2777850f, 0.2777850f, 0.4903930f, 0.097545f, -0.4157350f }, 57 { 0.3535530f, -0.3535530f, -0.3535530f, 0.3535540f, 0.3535530f, -0.3535540f, -0.353553f, 0.3535530f }, 58 { 0.2777850f, -0.4903930f, 0.0975452f, 0.4157350f, -0.4157350f, -0.0975451f, 0.490393f, -0.2777850f }, 59 { 0.1913420f, -0.4619400f, 0.4619400f, -0.1913420f, -0.1913410f, 0.4619400f, -0.461940f, 0.1913420f }, 60 { 0.0975451f, -0.2777850f, 0.4157350f, -0.4903930f, 0.4903930f, -0.4157350f, 0.277786f, -0.0975458f } 61}; 62 63static void 64calc_addr(struct ureg_program *shader, struct ureg_dst addr[2], 65 struct ureg_src tc, struct ureg_src start, bool right_side, 66 bool transposed, float size) 67{ 68 unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y; 69 unsigned sw_start = right_side ? TGSI_SWIZZLE_Y : TGSI_SWIZZLE_X; 70 71 unsigned wm_tc = (right_side == transposed) ? TGSI_WRITEMASK_Y : TGSI_WRITEMASK_X; 72 unsigned sw_tc = right_side ? TGSI_SWIZZLE_X : TGSI_SWIZZLE_Y; 73 74 /* 75 * addr[0..1].(start) = right_side ? start.x : tc.x 76 * addr[0..1].(tc) = right_side ? tc.y : start.y 77 * addr[0..1].z = tc.z 78 * addr[1].(start) += 1.0f / scale 79 */ 80 ureg_MOV(shader, ureg_writemask(addr[0], wm_start), ureg_scalar(start, sw_start)); 81 ureg_MOV(shader, ureg_writemask(addr[0], wm_tc), ureg_scalar(tc, sw_tc)); 82 ureg_MOV(shader, ureg_writemask(addr[0], TGSI_WRITEMASK_Z), tc); 83 84 ureg_ADD(shader, ureg_writemask(addr[1], wm_start), ureg_scalar(start, sw_start), ureg_imm1f(shader, 1.0f / size)); 85 ureg_MOV(shader, ureg_writemask(addr[1], wm_tc), ureg_scalar(tc, sw_tc)); 86 ureg_MOV(shader, ureg_writemask(addr[1], TGSI_WRITEMASK_Z), tc); 87} 88 89static void 90increment_addr(struct ureg_program *shader, struct ureg_dst daddr[2], 91 struct ureg_src saddr[2], bool right_side, bool transposed, 92 int pos, float size) 93{ 94 unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y; 95 unsigned wm_tc = (right_side == transposed) ? TGSI_WRITEMASK_Y : TGSI_WRITEMASK_X; 96 97 /* 98 * daddr[0..1].(start) = saddr[0..1].(start) 99 * daddr[0..1].(tc) = saddr[0..1].(tc) 100 */ 101 102 ureg_MOV(shader, ureg_writemask(daddr[0], wm_start), saddr[0]); 103 ureg_ADD(shader, ureg_writemask(daddr[0], wm_tc), saddr[0], ureg_imm1f(shader, pos / size)); 104 ureg_MOV(shader, ureg_writemask(daddr[1], wm_start), saddr[1]); 105 ureg_ADD(shader, ureg_writemask(daddr[1], wm_tc), saddr[1], ureg_imm1f(shader, pos / size)); 106} 107 108static void 109fetch_four(struct ureg_program *shader, struct ureg_dst m[2], struct ureg_src addr[2], struct ureg_src sampler) 110{ 111 ureg_TEX(shader, m[0], TGSI_TEXTURE_3D, addr[0], sampler); 112 ureg_TEX(shader, m[1], TGSI_TEXTURE_3D, addr[1], sampler); 113} 114 115static void 116matrix_mul(struct ureg_program *shader, struct ureg_dst dst, struct ureg_dst l[2], struct ureg_dst r[2]) 117{ 118 struct ureg_dst tmp; 119 120 tmp = ureg_DECL_temporary(shader); 121 122 /* 123 * tmp.xy = dot4(m[0][0..1], m[1][0..1]) 124 * dst = tmp.x + tmp.y 125 */ 126 ureg_DP4(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_src(l[0]), ureg_src(r[0])); 127 ureg_DP4(shader, ureg_writemask(tmp, TGSI_WRITEMASK_Y), ureg_src(l[1]), ureg_src(r[1])); 128 ureg_ADD(shader, dst, 129 ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X), 130 ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_Y)); 131 132 ureg_release_temporary(shader, tmp); 133} 134 135static void * 136create_stage1_vert_shader(struct vl_idct *idct) 137{ 138 struct ureg_program *shader; 139 struct ureg_src vrect, vpos; 140 struct ureg_src scale; 141 struct ureg_dst t_tex, t_start; 142 struct ureg_dst o_vpos, o_l_addr[2], o_r_addr[2]; 143 144 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 145 if (!shader) 146 return NULL; 147 148 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 149 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 150 151 t_tex = ureg_DECL_temporary(shader); 152 t_start = ureg_DECL_temporary(shader); 153 154 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 155 156 o_l_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0); 157 o_l_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1); 158 159 o_r_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR0); 160 o_r_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR1); 161 162 /* 163 * scale = (BLOCK_WIDTH, BLOCK_HEIGHT) / (dst.width, dst.height) 164 * 165 * t_vpos = vpos + vrect 166 * o_vpos.xy = t_vpos * scale 167 * o_vpos.zw = vpos 168 * 169 * o_l_addr = calc_addr(...) 170 * o_r_addr = calc_addr(...) 171 * 172 */ 173 174 scale = ureg_imm2f(shader, 175 (float)BLOCK_WIDTH / idct->buffer_width, 176 (float)BLOCK_HEIGHT / idct->buffer_height); 177 178 ureg_ADD(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), vpos, vrect); 179 ureg_MUL(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), ureg_src(t_tex), scale); 180 181 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(t_tex)); 182 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), ureg_imm1f(shader, 1.0f)); 183 184 ureg_MUL(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_Z), 185 ureg_scalar(vrect, TGSI_SWIZZLE_X), 186 ureg_imm1f(shader, BLOCK_WIDTH / idct->nr_of_render_targets)); 187 ureg_MUL(shader, ureg_writemask(t_start, TGSI_WRITEMASK_XY), vpos, scale); 188 189 calc_addr(shader, o_l_addr, ureg_src(t_tex), ureg_src(t_start), false, false, idct->buffer_width / 4); 190 calc_addr(shader, o_r_addr, vrect, ureg_imm1f(shader, 0.0f), true, true, BLOCK_WIDTH / 4); 191 192 ureg_release_temporary(shader, t_tex); 193 ureg_release_temporary(shader, t_start); 194 195 ureg_END(shader); 196 197 return ureg_create_shader_and_destroy(shader, idct->pipe); 198} 199 200static void * 201create_stage1_frag_shader(struct vl_idct *idct) 202{ 203 struct ureg_program *shader; 204 205 struct ureg_src l_addr[2], r_addr[2]; 206 207 struct ureg_dst l[4][2], r[2]; 208 struct ureg_dst fragment[idct->nr_of_render_targets]; 209 210 unsigned i, j; 211 212 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 213 if (!shader) 214 return NULL; 215 216 l_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); 217 l_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); 218 219 r_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR0, TGSI_INTERPOLATE_LINEAR); 220 r_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR1, TGSI_INTERPOLATE_LINEAR); 221 222 for (i = 0; i < idct->nr_of_render_targets; ++i) 223 fragment[i] = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, i); 224 225 for (i = 0; i < 4; ++i) { 226 l[i][0] = ureg_DECL_temporary(shader); 227 l[i][1] = ureg_DECL_temporary(shader); 228 } 229 230 r[0] = ureg_DECL_temporary(shader); 231 r[1] = ureg_DECL_temporary(shader); 232 233 for (i = 1; i < 4; ++i) { 234 increment_addr(shader, l[i], l_addr, false, false, i, idct->buffer_height); 235 } 236 237 for (i = 0; i < 4; ++i) { 238 struct ureg_src s_addr[2]; 239 s_addr[0] = i == 0 ? l_addr[0] : ureg_src(l[i][0]); 240 s_addr[1] = i == 0 ? l_addr[1] : ureg_src(l[i][1]); 241 fetch_four(shader, l[i], s_addr, ureg_DECL_sampler(shader, 1)); 242 } 243 244 for (i = 0; i < idct->nr_of_render_targets; ++i) { 245 if(i > 0) 246 increment_addr(shader, r, r_addr, true, true, i, BLOCK_HEIGHT); 247 248 struct ureg_src s_addr[2] = { ureg_src(r[0]), ureg_src(r[1]) }; 249 s_addr[0] = i == 0 ? r_addr[0] : ureg_src(r[0]); 250 s_addr[1] = i == 0 ? r_addr[1] : ureg_src(r[1]); 251 fetch_four(shader, r, s_addr, ureg_DECL_sampler(shader, 0)); 252 253 for (j = 0; j < 4; ++j) { 254 matrix_mul(shader, ureg_writemask(fragment[i], TGSI_WRITEMASK_X << j), l[j], r); 255 } 256 } 257 258 for (i = 0; i < 4; ++i) { 259 ureg_release_temporary(shader, l[i][0]); 260 ureg_release_temporary(shader, l[i][1]); 261 } 262 ureg_release_temporary(shader, r[0]); 263 ureg_release_temporary(shader, r[1]); 264 265 ureg_END(shader); 266 267 return ureg_create_shader_and_destroy(shader, idct->pipe); 268} 269 270void 271vl_idct_stage2_vert_shader(struct vl_idct *idct, struct ureg_program *shader, 272 unsigned first_output, struct ureg_dst tex) 273{ 274 struct ureg_src vrect, vpos; 275 struct ureg_src scale; 276 struct ureg_dst t_start; 277 struct ureg_dst o_l_addr[2], o_r_addr[2]; 278 279 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 280 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 281 282 t_start = ureg_DECL_temporary(shader); 283 284 --first_output; 285 286 o_l_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_L_ADDR0); 287 o_l_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_L_ADDR1); 288 289 o_r_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_R_ADDR0); 290 o_r_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_R_ADDR1); 291 292 scale = ureg_imm2f(shader, 293 (float)BLOCK_WIDTH / idct->buffer_width, 294 (float)BLOCK_HEIGHT / idct->buffer_height); 295 296 ureg_MUL(shader, ureg_writemask(tex, TGSI_WRITEMASK_Z), 297 ureg_scalar(vrect, TGSI_SWIZZLE_X), 298 ureg_imm1f(shader, BLOCK_WIDTH / idct->nr_of_render_targets)); 299 ureg_MUL(shader, ureg_writemask(t_start, TGSI_WRITEMASK_XY), vpos, scale); 300 301 calc_addr(shader, o_l_addr, vrect, ureg_imm1f(shader, 0.0f), false, false, BLOCK_WIDTH / 4); 302 calc_addr(shader, o_r_addr, ureg_src(tex), ureg_src(t_start), true, false, idct->buffer_height / 4); 303} 304 305void 306vl_idct_stage2_frag_shader(struct vl_idct *idct, struct ureg_program *shader, 307 unsigned first_input, struct ureg_dst fragment) 308{ 309 struct ureg_src l_addr[2], r_addr[2]; 310 311 struct ureg_dst l[2], r[2]; 312 313 --first_input; 314 315 l_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); 316 l_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); 317 318 r_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_R_ADDR0, TGSI_INTERPOLATE_LINEAR); 319 r_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_R_ADDR1, TGSI_INTERPOLATE_LINEAR); 320 321 l[0] = ureg_DECL_temporary(shader); 322 l[1] = ureg_DECL_temporary(shader); 323 r[0] = ureg_DECL_temporary(shader); 324 r[1] = ureg_DECL_temporary(shader); 325 326 fetch_four(shader, l, l_addr, ureg_DECL_sampler(shader, 0)); 327 fetch_four(shader, r, r_addr, ureg_DECL_sampler(shader, 1)); 328 329 matrix_mul(shader, fragment, l, r); 330 331 ureg_release_temporary(shader, l[0]); 332 ureg_release_temporary(shader, l[1]); 333 ureg_release_temporary(shader, r[0]); 334 ureg_release_temporary(shader, r[1]); 335} 336 337static bool 338init_shaders(struct vl_idct *idct) 339{ 340 idct->vs = create_stage1_vert_shader(idct); 341 if (!idct->vs) 342 goto error_vs; 343 344 idct->fs = create_stage1_frag_shader(idct); 345 if (!idct->fs) 346 goto error_fs; 347 348 return true; 349 350error_fs: 351 idct->pipe->delete_vs_state(idct->pipe, idct->vs); 352 353error_vs: 354 return false; 355} 356 357static void 358cleanup_shaders(struct vl_idct *idct) 359{ 360 idct->pipe->delete_vs_state(idct->pipe, idct->vs); 361 idct->pipe->delete_fs_state(idct->pipe, idct->fs); 362} 363 364static bool 365init_state(struct vl_idct *idct) 366{ 367 struct pipe_blend_state blend; 368 struct pipe_rasterizer_state rs_state; 369 struct pipe_sampler_state sampler; 370 unsigned i; 371 372 assert(idct); 373 374 memset(&rs_state, 0, sizeof(rs_state)); 375 rs_state.gl_rasterization_rules = false; 376 idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state); 377 if (!idct->rs_state) 378 goto error_rs_state; 379 380 memset(&blend, 0, sizeof blend); 381 382 blend.independent_blend_enable = 0; 383 blend.rt[0].blend_enable = 0; 384 blend.rt[0].rgb_func = PIPE_BLEND_ADD; 385 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; 386 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE; 387 blend.rt[0].alpha_func = PIPE_BLEND_ADD; 388 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 389 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; 390 blend.logicop_enable = 0; 391 blend.logicop_func = PIPE_LOGICOP_CLEAR; 392 /* Needed to allow color writes to FB, even if blending disabled */ 393 blend.rt[0].colormask = PIPE_MASK_RGBA; 394 blend.dither = 0; 395 idct->blend = idct->pipe->create_blend_state(idct->pipe, &blend); 396 if (!idct->blend) 397 goto error_blend; 398 399 for (i = 0; i < 2; ++i) { 400 memset(&sampler, 0, sizeof(sampler)); 401 sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; 402 sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; 403 sampler.wrap_r = PIPE_TEX_WRAP_REPEAT; 404 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 405 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 406 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 407 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 408 sampler.compare_func = PIPE_FUNC_ALWAYS; 409 sampler.normalized_coords = 1; 410 idct->samplers[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 411 if (!idct->samplers[i]) 412 goto error_samplers; 413 } 414 415 return true; 416 417error_samplers: 418 for (i = 0; i < 2; ++i) 419 if (idct->samplers[i]) 420 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 421 422 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 423 424error_blend: 425 idct->pipe->delete_blend_state(idct->pipe, idct->blend); 426 427error_rs_state: 428 return false; 429} 430 431static void 432cleanup_state(struct vl_idct *idct) 433{ 434 unsigned i; 435 436 for (i = 0; i < 2; ++i) 437 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 438 439 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 440 idct->pipe->delete_blend_state(idct->pipe, idct->blend); 441} 442 443static bool 444init_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 445{ 446 struct pipe_resource *tex; 447 struct pipe_surface surf_templ; 448 unsigned i; 449 450 assert(idct && buffer); 451 452 tex = buffer->sampler_views.individual.intermediate->texture; 453 454 buffer->fb_state.width = tex->width0; 455 buffer->fb_state.height = tex->height0; 456 buffer->fb_state.nr_cbufs = idct->nr_of_render_targets; 457 for(i = 0; i < idct->nr_of_render_targets; ++i) { 458 memset(&surf_templ, 0, sizeof(surf_templ)); 459 surf_templ.format = tex->format; 460 surf_templ.u.tex.first_layer = i; 461 surf_templ.u.tex.last_layer = i; 462 surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 463 buffer->fb_state.cbufs[i] = idct->pipe->create_surface( 464 idct->pipe, tex, &surf_templ); 465 466 if (!buffer->fb_state.cbufs[i]) 467 goto error_surfaces; 468 } 469 470 buffer->viewport.scale[0] = tex->width0; 471 buffer->viewport.scale[1] = tex->height0; 472 473 return true; 474 475error_surfaces: 476 for(i = 0; i < idct->nr_of_render_targets; ++i) 477 pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); 478 479 return false; 480} 481 482static void 483cleanup_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 484{ 485 unsigned i; 486 487 assert(idct && buffer); 488 489 for(i = 0; i < idct->nr_of_render_targets; ++i) 490 pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); 491 492 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, NULL); 493} 494 495struct pipe_sampler_view * 496vl_idct_upload_matrix(struct pipe_context *pipe, float scale) 497{ 498 struct pipe_resource tex_templ, *matrix; 499 struct pipe_sampler_view sv_templ, *sv; 500 struct pipe_transfer *buf_transfer; 501 unsigned i, j, pitch; 502 float *f; 503 504 struct pipe_box rect = 505 { 506 0, 0, 0, 507 BLOCK_WIDTH / 4, 508 BLOCK_HEIGHT, 509 1 510 }; 511 512 assert(pipe); 513 514 memset(&tex_templ, 0, sizeof(tex_templ)); 515 tex_templ.target = PIPE_TEXTURE_2D; 516 tex_templ.format = PIPE_FORMAT_R32G32B32A32_FLOAT; 517 tex_templ.last_level = 0; 518 tex_templ.width0 = 2; 519 tex_templ.height0 = 8; 520 tex_templ.depth0 = 1; 521 tex_templ.array_size = 1; 522 tex_templ.usage = PIPE_USAGE_IMMUTABLE; 523 tex_templ.bind = PIPE_BIND_SAMPLER_VIEW; 524 tex_templ.flags = 0; 525 526 matrix = pipe->screen->resource_create(pipe->screen, &tex_templ); 527 if (!matrix) 528 goto error_matrix; 529 530 buf_transfer = pipe->get_transfer 531 ( 532 pipe, matrix, 533 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 534 &rect 535 ); 536 if (!buf_transfer) 537 goto error_transfer; 538 539 pitch = buf_transfer->stride / sizeof(float); 540 541 f = pipe->transfer_map(pipe, buf_transfer); 542 if (!f) 543 goto error_map; 544 545 for(i = 0; i < BLOCK_HEIGHT; ++i) 546 for(j = 0; j < BLOCK_WIDTH; ++j) 547 // transpose and scale 548 f[i * pitch + j] = const_matrix[j][i] * scale; 549 550 pipe->transfer_unmap(pipe, buf_transfer); 551 pipe->transfer_destroy(pipe, buf_transfer); 552 553 memset(&sv_templ, 0, sizeof(sv_templ)); 554 u_sampler_view_default_template(&sv_templ, matrix, matrix->format); 555 sv = pipe->create_sampler_view(pipe, matrix, &sv_templ); 556 pipe_resource_reference(&matrix, NULL); 557 if (!sv) 558 goto error_map; 559 560 return sv; 561 562error_map: 563 pipe->transfer_destroy(pipe, buf_transfer); 564 565error_transfer: 566 pipe_resource_reference(&matrix, NULL); 567 568error_matrix: 569 return NULL; 570} 571 572bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, 573 unsigned buffer_width, unsigned buffer_height, 574 unsigned nr_of_render_targets, 575 struct pipe_sampler_view *matrix, 576 struct pipe_sampler_view *transpose) 577{ 578 assert(idct && pipe && matrix); 579 580 idct->pipe = pipe; 581 idct->buffer_width = buffer_width; 582 idct->buffer_height = buffer_height; 583 idct->nr_of_render_targets = nr_of_render_targets; 584 585 pipe_sampler_view_reference(&idct->matrix, matrix); 586 pipe_sampler_view_reference(&idct->transpose, transpose); 587 588 if(!init_shaders(idct)) 589 return false; 590 591 if(!init_state(idct)) { 592 cleanup_shaders(idct); 593 return false; 594 } 595 596 return true; 597} 598 599void 600vl_idct_cleanup(struct vl_idct *idct) 601{ 602 cleanup_shaders(idct); 603 cleanup_state(idct); 604 605 pipe_sampler_view_reference(&idct->matrix, NULL); 606} 607 608bool 609vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, 610 struct pipe_sampler_view *source, 611 struct pipe_sampler_view *intermediate, 612 struct pipe_surface *destination) 613{ 614 assert(buffer); 615 assert(idct); 616 assert(source); 617 assert(destination); 618 619 memset(buffer, 0, sizeof(struct vl_idct_buffer)); 620 621 pipe_sampler_view_reference(&buffer->sampler_views.individual.matrix, idct->matrix); 622 pipe_sampler_view_reference(&buffer->sampler_views.individual.source, source); 623 pipe_sampler_view_reference(&buffer->sampler_views.individual.transpose, idct->transpose); 624 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, intermediate); 625 626 if (!init_intermediate(idct, buffer)) 627 return false; 628 629 buffer->viewport.scale[2] = 1; 630 buffer->viewport.scale[3] = 1; 631 buffer->viewport.translate[0] = 0; 632 buffer->viewport.translate[1] = 0; 633 buffer->viewport.translate[2] = 0; 634 buffer->viewport.translate[3] = 0; 635 636 return true; 637} 638 639void 640vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer) 641{ 642 unsigned i; 643 644 assert(idct && buffer); 645 646 for(i = 0; i < idct->nr_of_render_targets; ++i) 647 pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); 648 649 cleanup_intermediate(idct, buffer); 650} 651 652void 653vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer, unsigned num_instances) 654{ 655 assert(idct); 656 assert(buffer); 657 658 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 659 idct->pipe->bind_blend_state(idct->pipe, idct->blend); 660 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers); 661 662 /* first stage */ 663 idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state); 664 idct->pipe->set_viewport_state(idct->pipe, &buffer->viewport); 665 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[0]); 666 idct->pipe->bind_vs_state(idct->pipe, idct->vs); 667 idct->pipe->bind_fs_state(idct->pipe, idct->fs); 668 util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_QUADS, 0, 4, 0, num_instances); 669} 670 671void 672vl_idct_prepare_stage2(struct vl_idct *idct, struct vl_idct_buffer *buffer) 673{ 674 assert(idct); 675 assert(buffer); 676 677 /* second stage */ 678 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 679 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers); 680 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[1]); 681} 682 683