vl_idct.c revision 3db6514357a7c634045ae7bc7bba7d7dbf9d58c5
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 int 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 = 0; i < 4; ++i) { 234 increment_addr(shader, l[i], l_addr, false, false, i - 2, idct->buffer_height); 235 } 236 237 for (i = 0; i < 4; ++i) { 238 struct ureg_src s_addr[2] = { ureg_src(l[i][0]), ureg_src(l[i][1]) }; 239 fetch_four(shader, l[i], s_addr, ureg_DECL_sampler(shader, 1)); 240 } 241 242 for (i = 0; i < idct->nr_of_render_targets; ++i) { 243 increment_addr(shader, r, r_addr, true, true, i - (signed)idct->nr_of_render_targets / 2, BLOCK_HEIGHT); 244 245 struct ureg_src s_addr[2] = { ureg_src(r[0]), ureg_src(r[1]) }; 246 fetch_four(shader, r, s_addr, ureg_DECL_sampler(shader, 0)); 247 248 for (j = 0; j < 4; ++j) { 249 matrix_mul(shader, ureg_writemask(fragment[i], TGSI_WRITEMASK_X << j), l[j], r); 250 } 251 } 252 253 for (i = 0; i < 4; ++i) { 254 ureg_release_temporary(shader, l[i][0]); 255 ureg_release_temporary(shader, l[i][1]); 256 } 257 ureg_release_temporary(shader, r[0]); 258 ureg_release_temporary(shader, r[1]); 259 260 ureg_END(shader); 261 262 return ureg_create_shader_and_destroy(shader, idct->pipe); 263} 264 265void 266vl_idct_stage2_vert_shader(struct vl_idct *idct, struct ureg_program *shader, 267 unsigned first_output, struct ureg_dst tex) 268{ 269 struct ureg_src vrect, vpos; 270 struct ureg_src scale; 271 struct ureg_dst t_start; 272 struct ureg_dst o_l_addr[2], o_r_addr[2]; 273 274 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 275 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 276 277 t_start = ureg_DECL_temporary(shader); 278 279 --first_output; 280 281 o_l_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_L_ADDR0); 282 o_l_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_L_ADDR1); 283 284 o_r_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_R_ADDR0); 285 o_r_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output + VS_O_R_ADDR1); 286 287 scale = ureg_imm2f(shader, 288 (float)BLOCK_WIDTH / idct->buffer_width, 289 (float)BLOCK_HEIGHT / idct->buffer_height); 290 291 ureg_MUL(shader, ureg_writemask(tex, TGSI_WRITEMASK_Z), 292 ureg_scalar(vrect, TGSI_SWIZZLE_X), 293 ureg_imm1f(shader, BLOCK_WIDTH / idct->nr_of_render_targets)); 294 ureg_MUL(shader, ureg_writemask(t_start, TGSI_WRITEMASK_XY), vpos, scale); 295 296 calc_addr(shader, o_l_addr, vrect, ureg_imm1f(shader, 0.0f), false, false, BLOCK_WIDTH / 4); 297 calc_addr(shader, o_r_addr, ureg_src(tex), ureg_src(t_start), true, false, idct->buffer_height / 4); 298} 299 300void 301vl_idct_stage2_frag_shader(struct vl_idct *idct, struct ureg_program *shader, 302 unsigned first_input, struct ureg_dst fragment) 303{ 304 struct ureg_src l_addr[2], r_addr[2]; 305 306 struct ureg_dst l[2], r[2]; 307 308 --first_input; 309 310 l_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); 311 l_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); 312 313 r_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_R_ADDR0, TGSI_INTERPOLATE_LINEAR); 314 r_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input + VS_O_R_ADDR1, TGSI_INTERPOLATE_LINEAR); 315 316 l[0] = ureg_DECL_temporary(shader); 317 l[1] = ureg_DECL_temporary(shader); 318 r[0] = ureg_DECL_temporary(shader); 319 r[1] = ureg_DECL_temporary(shader); 320 321 fetch_four(shader, l, l_addr, ureg_DECL_sampler(shader, 0)); 322 fetch_four(shader, r, r_addr, ureg_DECL_sampler(shader, 1)); 323 324 matrix_mul(shader, fragment, l, r); 325 326 ureg_release_temporary(shader, l[0]); 327 ureg_release_temporary(shader, l[1]); 328 ureg_release_temporary(shader, r[0]); 329 ureg_release_temporary(shader, r[1]); 330} 331 332static bool 333init_shaders(struct vl_idct *idct) 334{ 335 idct->vs = create_stage1_vert_shader(idct); 336 if (!idct->vs) 337 goto error_vs; 338 339 idct->fs = create_stage1_frag_shader(idct); 340 if (!idct->fs) 341 goto error_fs; 342 343 return true; 344 345error_fs: 346 idct->pipe->delete_vs_state(idct->pipe, idct->vs); 347 348error_vs: 349 return false; 350} 351 352static void 353cleanup_shaders(struct vl_idct *idct) 354{ 355 idct->pipe->delete_vs_state(idct->pipe, idct->vs); 356 idct->pipe->delete_fs_state(idct->pipe, idct->fs); 357} 358 359static bool 360init_state(struct vl_idct *idct) 361{ 362 struct pipe_blend_state blend; 363 struct pipe_rasterizer_state rs_state; 364 struct pipe_sampler_state sampler; 365 unsigned i; 366 367 assert(idct); 368 369 memset(&rs_state, 0, sizeof(rs_state)); 370 rs_state.gl_rasterization_rules = true; 371 idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state); 372 if (!idct->rs_state) 373 goto error_rs_state; 374 375 memset(&blend, 0, sizeof blend); 376 377 blend.independent_blend_enable = 0; 378 blend.rt[0].blend_enable = 0; 379 blend.rt[0].rgb_func = PIPE_BLEND_ADD; 380 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; 381 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE; 382 blend.rt[0].alpha_func = PIPE_BLEND_ADD; 383 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 384 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; 385 blend.logicop_enable = 0; 386 blend.logicop_func = PIPE_LOGICOP_CLEAR; 387 /* Needed to allow color writes to FB, even if blending disabled */ 388 blend.rt[0].colormask = PIPE_MASK_RGBA; 389 blend.dither = 0; 390 idct->blend = idct->pipe->create_blend_state(idct->pipe, &blend); 391 if (!idct->blend) 392 goto error_blend; 393 394 for (i = 0; i < 2; ++i) { 395 memset(&sampler, 0, sizeof(sampler)); 396 sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; 397 sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; 398 sampler.wrap_r = PIPE_TEX_WRAP_REPEAT; 399 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 400 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 401 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 402 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 403 sampler.compare_func = PIPE_FUNC_ALWAYS; 404 sampler.normalized_coords = 1; 405 idct->samplers[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 406 if (!idct->samplers[i]) 407 goto error_samplers; 408 } 409 410 return true; 411 412error_samplers: 413 for (i = 0; i < 2; ++i) 414 if (idct->samplers[i]) 415 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 416 417 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 418 419error_blend: 420 idct->pipe->delete_blend_state(idct->pipe, idct->blend); 421 422error_rs_state: 423 return false; 424} 425 426static void 427cleanup_state(struct vl_idct *idct) 428{ 429 unsigned i; 430 431 for (i = 0; i < 2; ++i) 432 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 433 434 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 435 idct->pipe->delete_blend_state(idct->pipe, idct->blend); 436} 437 438static bool 439init_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 440{ 441 struct pipe_resource *tex; 442 struct pipe_surface surf_templ; 443 unsigned i; 444 445 assert(idct && buffer); 446 447 tex = buffer->sampler_views.individual.intermediate->texture; 448 449 buffer->fb_state.width = tex->width0; 450 buffer->fb_state.height = tex->height0; 451 buffer->fb_state.nr_cbufs = idct->nr_of_render_targets; 452 for(i = 0; i < idct->nr_of_render_targets; ++i) { 453 memset(&surf_templ, 0, sizeof(surf_templ)); 454 surf_templ.format = tex->format; 455 surf_templ.u.tex.first_layer = i; 456 surf_templ.u.tex.last_layer = i; 457 surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 458 buffer->fb_state.cbufs[i] = idct->pipe->create_surface( 459 idct->pipe, tex, &surf_templ); 460 461 if (!buffer->fb_state.cbufs[i]) 462 goto error_surfaces; 463 } 464 465 buffer->viewport.scale[0] = tex->width0; 466 buffer->viewport.scale[1] = tex->height0; 467 468 return true; 469 470error_surfaces: 471 for(i = 0; i < idct->nr_of_render_targets; ++i) 472 pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); 473 474 return false; 475} 476 477static void 478cleanup_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 479{ 480 unsigned i; 481 482 assert(idct && buffer); 483 484 for(i = 0; i < idct->nr_of_render_targets; ++i) 485 pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); 486 487 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, NULL); 488} 489 490struct pipe_sampler_view * 491vl_idct_upload_matrix(struct pipe_context *pipe, float scale) 492{ 493 struct pipe_resource tex_templ, *matrix; 494 struct pipe_sampler_view sv_templ, *sv; 495 struct pipe_transfer *buf_transfer; 496 unsigned i, j, pitch; 497 float *f; 498 499 struct pipe_box rect = 500 { 501 0, 0, 0, 502 BLOCK_WIDTH / 4, 503 BLOCK_HEIGHT, 504 1 505 }; 506 507 assert(pipe); 508 509 memset(&tex_templ, 0, sizeof(tex_templ)); 510 tex_templ.target = PIPE_TEXTURE_2D; 511 tex_templ.format = PIPE_FORMAT_R32G32B32A32_FLOAT; 512 tex_templ.last_level = 0; 513 tex_templ.width0 = 2; 514 tex_templ.height0 = 8; 515 tex_templ.depth0 = 1; 516 tex_templ.array_size = 1; 517 tex_templ.usage = PIPE_USAGE_IMMUTABLE; 518 tex_templ.bind = PIPE_BIND_SAMPLER_VIEW; 519 tex_templ.flags = 0; 520 521 matrix = pipe->screen->resource_create(pipe->screen, &tex_templ); 522 if (!matrix) 523 goto error_matrix; 524 525 buf_transfer = pipe->get_transfer 526 ( 527 pipe, matrix, 528 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 529 &rect 530 ); 531 if (!buf_transfer) 532 goto error_transfer; 533 534 pitch = buf_transfer->stride / sizeof(float); 535 536 f = pipe->transfer_map(pipe, buf_transfer); 537 if (!f) 538 goto error_map; 539 540 for(i = 0; i < BLOCK_HEIGHT; ++i) 541 for(j = 0; j < BLOCK_WIDTH; ++j) 542 // transpose and scale 543 f[i * pitch + j] = const_matrix[j][i] * scale; 544 545 pipe->transfer_unmap(pipe, buf_transfer); 546 pipe->transfer_destroy(pipe, buf_transfer); 547 548 memset(&sv_templ, 0, sizeof(sv_templ)); 549 u_sampler_view_default_template(&sv_templ, matrix, matrix->format); 550 sv = pipe->create_sampler_view(pipe, matrix, &sv_templ); 551 pipe_resource_reference(&matrix, NULL); 552 if (!sv) 553 goto error_map; 554 555 return sv; 556 557error_map: 558 pipe->transfer_destroy(pipe, buf_transfer); 559 560error_transfer: 561 pipe_resource_reference(&matrix, NULL); 562 563error_matrix: 564 return NULL; 565} 566 567bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, 568 unsigned buffer_width, unsigned buffer_height, 569 unsigned nr_of_render_targets, 570 struct pipe_sampler_view *matrix, 571 struct pipe_sampler_view *transpose) 572{ 573 assert(idct && pipe && matrix); 574 575 idct->pipe = pipe; 576 idct->buffer_width = buffer_width; 577 idct->buffer_height = buffer_height; 578 idct->nr_of_render_targets = nr_of_render_targets; 579 580 pipe_sampler_view_reference(&idct->matrix, matrix); 581 pipe_sampler_view_reference(&idct->transpose, transpose); 582 583 if(!init_shaders(idct)) 584 return false; 585 586 if(!init_state(idct)) { 587 cleanup_shaders(idct); 588 return false; 589 } 590 591 return true; 592} 593 594void 595vl_idct_cleanup(struct vl_idct *idct) 596{ 597 cleanup_shaders(idct); 598 cleanup_state(idct); 599 600 pipe_sampler_view_reference(&idct->matrix, NULL); 601} 602 603bool 604vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, 605 struct pipe_sampler_view *source, 606 struct pipe_sampler_view *intermediate, 607 struct pipe_surface *destination) 608{ 609 assert(buffer); 610 assert(idct); 611 assert(source); 612 assert(destination); 613 614 memset(buffer, 0, sizeof(struct vl_idct_buffer)); 615 616 pipe_sampler_view_reference(&buffer->sampler_views.individual.matrix, idct->matrix); 617 pipe_sampler_view_reference(&buffer->sampler_views.individual.source, source); 618 pipe_sampler_view_reference(&buffer->sampler_views.individual.transpose, idct->transpose); 619 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, intermediate); 620 621 if (!init_intermediate(idct, buffer)) 622 return false; 623 624 buffer->viewport.scale[2] = 1; 625 buffer->viewport.scale[3] = 1; 626 buffer->viewport.translate[0] = 0; 627 buffer->viewport.translate[1] = 0; 628 buffer->viewport.translate[2] = 0; 629 buffer->viewport.translate[3] = 0; 630 631 return true; 632} 633 634void 635vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer) 636{ 637 unsigned i; 638 639 assert(idct && buffer); 640 641 for(i = 0; i < idct->nr_of_render_targets; ++i) 642 pipe_surface_reference(&buffer->fb_state.cbufs[i], NULL); 643 644 cleanup_intermediate(idct, buffer); 645} 646 647void 648vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer, unsigned num_instances) 649{ 650 assert(idct); 651 assert(buffer); 652 653 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 654 idct->pipe->bind_blend_state(idct->pipe, idct->blend); 655 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers); 656 657 /* first stage */ 658 idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state); 659 idct->pipe->set_viewport_state(idct->pipe, &buffer->viewport); 660 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[0]); 661 idct->pipe->bind_vs_state(idct->pipe, idct->vs); 662 idct->pipe->bind_fs_state(idct->pipe, idct->fs); 663 util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_QUADS, 0, 4, 0, num_instances); 664} 665 666void 667vl_idct_prepare_stage2(struct vl_idct *idct, struct vl_idct_buffer *buffer) 668{ 669 assert(idct); 670 assert(buffer); 671 672 /* second stage */ 673 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 674 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers); 675 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[1]); 676} 677 678