vl_idct.c revision fcdf50f74befad8d89eb3f9cdfd88b82d1daa98c
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 "vl_defines.h" 31#include "util/u_draw.h" 32#include <assert.h> 33#include <pipe/p_context.h> 34#include <pipe/p_screen.h> 35#include <util/u_inlines.h> 36#include <util/u_sampler.h> 37#include <util/u_format.h> 38#include <tgsi/tgsi_ureg.h> 39#include "vl_types.h" 40 41#define NR_RENDER_TARGETS 4 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 * 90create_vert_shader(struct vl_idct *idct, bool matrix_stage) 91{ 92 struct ureg_program *shader; 93 struct ureg_src vrect, vpos, vblock, eb; 94 struct ureg_src scale, blocks_xy; 95 struct ureg_dst t_tex, t_start; 96 struct ureg_dst o_vpos, o_l_addr[2], o_r_addr[2]; 97 unsigned label; 98 99 shader = ureg_create(TGSI_PROCESSOR_VERTEX); 100 if (!shader) 101 return NULL; 102 103 t_tex = ureg_DECL_temporary(shader); 104 t_start = ureg_DECL_temporary(shader); 105 106 vrect = ureg_DECL_vs_input(shader, VS_I_RECT); 107 vpos = ureg_DECL_vs_input(shader, VS_I_VPOS); 108 vblock = ureg_swizzle(vrect, TGSI_SWIZZLE_Z, TGSI_SWIZZLE_W, TGSI_SWIZZLE_X, TGSI_SWIZZLE_X); 109 110 o_vpos = ureg_DECL_output(shader, TGSI_SEMANTIC_POSITION, VS_O_VPOS); 111 112 eb = ureg_DECL_vs_input(shader, VS_I_EB); 113 114 o_l_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0); 115 o_l_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1); 116 117 o_r_addr[0] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR0); 118 o_r_addr[1] = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR1); 119 120 /* 121 * scale = (BLOCK_WIDTH, BLOCK_HEIGHT) / (dst.width, dst.height) 122 * blocks_xy = (blocks_x, blocks_y) 123 * 124 * if eb.(vblock.y, vblock.x) 125 * o_vpos.xy = -1 126 * else 127 * t_tex = vpos * blocks_xy + vblock 128 * t_start = t_tex * scale 129 * t_tex = t_tex + vrect 130 * o_vpos.xy = t_tex * scale 131 * 132 * o_l_addr = calc_addr(...) 133 * o_r_addr = calc_addr(...) 134 * endif 135 * o_vpos.zw = vpos 136 * 137 */ 138 139 scale = ureg_imm2f(shader, 140 (float)BLOCK_WIDTH / idct->buffer_width, 141 (float)BLOCK_HEIGHT / idct->buffer_height); 142 143 blocks_xy = ureg_imm2f(shader, idct->blocks_x, idct->blocks_y); 144 145 if (idct->blocks_x > 1 || idct->blocks_y > 1) { 146 ureg_CMP(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), 147 ureg_negate(ureg_scalar(vblock, TGSI_SWIZZLE_Y)), 148 ureg_swizzle(eb, TGSI_SWIZZLE_Z, TGSI_SWIZZLE_W, TGSI_SWIZZLE_Z, TGSI_SWIZZLE_W), 149 ureg_swizzle(eb, TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y, TGSI_SWIZZLE_X, TGSI_SWIZZLE_Y)); 150 151 ureg_CMP(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_X), 152 ureg_negate(ureg_scalar(vblock, TGSI_SWIZZLE_X)), 153 ureg_scalar(ureg_src(t_tex), TGSI_SWIZZLE_Y), 154 ureg_scalar(ureg_src(t_tex), TGSI_SWIZZLE_X)); 155 156 eb = ureg_src(t_tex); 157 } 158 159 ureg_IF(shader, ureg_scalar(eb, TGSI_SWIZZLE_X), &label); 160 161 ureg_MOV(shader, o_vpos, ureg_imm1f(shader, -1.0f)); 162 163 ureg_fixup_label(shader, label, ureg_get_instruction_number(shader)); 164 ureg_ELSE(shader, &label); 165 166 ureg_MAD(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), vpos, blocks_xy, vblock); 167 ureg_MUL(shader, ureg_writemask(t_start, TGSI_WRITEMASK_XY), ureg_src(t_tex), scale); 168 169 ureg_ADD(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), ureg_src(t_tex), vrect); 170 171 ureg_MUL(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_XY), ureg_src(t_tex), scale); 172 ureg_MUL(shader, ureg_writemask(t_tex, TGSI_WRITEMASK_Z), 173 ureg_scalar(vrect, TGSI_SWIZZLE_X), 174 ureg_imm1f(shader, BLOCK_WIDTH / NR_RENDER_TARGETS)); 175 176 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_XY), ureg_src(t_tex)); 177 178 if(matrix_stage) { 179 calc_addr(shader, o_l_addr, ureg_src(t_tex), ureg_src(t_start), false, false, idct->buffer_width / 4); 180 calc_addr(shader, o_r_addr, vrect, ureg_imm1f(shader, 0.0f), true, true, BLOCK_WIDTH / 4); 181 } else { 182 calc_addr(shader, o_l_addr, vrect, ureg_imm1f(shader, 0.0f), false, false, BLOCK_WIDTH / 4); 183 calc_addr(shader, o_r_addr, ureg_src(t_tex), ureg_src(t_start), true, false, idct->buffer_height / 4); 184 } 185 186 ureg_fixup_label(shader, label, ureg_get_instruction_number(shader)); 187 ureg_ENDIF(shader); 188 189 ureg_MOV(shader, ureg_writemask(o_vpos, TGSI_WRITEMASK_ZW), vpos); 190 191 ureg_release_temporary(shader, t_tex); 192 ureg_release_temporary(shader, t_start); 193 194 ureg_END(shader); 195 196 return ureg_create_shader_and_destroy(shader, idct->pipe); 197} 198 199static void 200increment_addr(struct ureg_program *shader, struct ureg_dst daddr[2], 201 struct ureg_src saddr[2], bool right_side, bool transposed, 202 int pos, float size) 203{ 204 unsigned wm_start = (right_side == transposed) ? TGSI_WRITEMASK_X : TGSI_WRITEMASK_Y; 205 unsigned wm_tc = (right_side == transposed) ? TGSI_WRITEMASK_Y : TGSI_WRITEMASK_X; 206 207 /* 208 * daddr[0..1].(start) = saddr[0..1].(start) 209 * daddr[0..1].(tc) = saddr[0..1].(tc) 210 */ 211 212 ureg_MOV(shader, ureg_writemask(daddr[0], wm_start), saddr[0]); 213 ureg_ADD(shader, ureg_writemask(daddr[0], wm_tc), saddr[0], ureg_imm1f(shader, pos / size)); 214 ureg_MOV(shader, ureg_writemask(daddr[1], wm_start), saddr[1]); 215 ureg_ADD(shader, ureg_writemask(daddr[1], wm_tc), saddr[1], ureg_imm1f(shader, pos / size)); 216} 217 218static void 219fetch_four(struct ureg_program *shader, struct ureg_dst m[2], struct ureg_src addr[2], struct ureg_src sampler) 220{ 221 ureg_TEX(shader, m[0], TGSI_TEXTURE_3D, addr[0], sampler); 222 ureg_TEX(shader, m[1], TGSI_TEXTURE_3D, addr[1], sampler); 223} 224 225static void 226matrix_mul(struct ureg_program *shader, struct ureg_dst dst, struct ureg_dst l[2], struct ureg_dst r[2]) 227{ 228 struct ureg_dst tmp; 229 230 tmp = ureg_DECL_temporary(shader); 231 232 /* 233 * tmp.xy = dot4(m[0][0..1], m[1][0..1]) 234 * dst = tmp.x + tmp.y 235 */ 236 ureg_DP4(shader, ureg_writemask(tmp, TGSI_WRITEMASK_X), ureg_src(l[0]), ureg_src(r[0])); 237 ureg_DP4(shader, ureg_writemask(tmp, TGSI_WRITEMASK_Y), ureg_src(l[1]), ureg_src(r[1])); 238 ureg_ADD(shader, dst, 239 ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_X), 240 ureg_scalar(ureg_src(tmp), TGSI_SWIZZLE_Y)); 241 242 ureg_release_temporary(shader, tmp); 243} 244 245static void * 246create_matrix_frag_shader(struct vl_idct *idct) 247{ 248 struct ureg_program *shader; 249 250 struct ureg_src l_addr[2], r_addr[2]; 251 252 struct ureg_dst l[4][2], r[2]; 253 struct ureg_dst fragment[NR_RENDER_TARGETS]; 254 255 unsigned i, j; 256 257 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 258 if (!shader) 259 return NULL; 260 261 l_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); 262 l_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); 263 264 r_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR0, TGSI_INTERPOLATE_LINEAR); 265 r_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR1, TGSI_INTERPOLATE_LINEAR); 266 267 for (i = 0; i < NR_RENDER_TARGETS; ++i) 268 fragment[i] = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, i); 269 270 for (i = 0; i < 4; ++i) { 271 l[i][0] = ureg_DECL_temporary(shader); 272 l[i][1] = ureg_DECL_temporary(shader); 273 } 274 275 r[0] = ureg_DECL_temporary(shader); 276 r[1] = ureg_DECL_temporary(shader); 277 278 for (i = 1; i < 4; ++i) { 279 increment_addr(shader, l[i], l_addr, false, false, i, idct->buffer_height); 280 } 281 282 for (i = 0; i < 4; ++i) { 283 struct ureg_src s_addr[2]; 284 s_addr[0] = i == 0 ? l_addr[0] : ureg_src(l[i][0]); 285 s_addr[1] = i == 0 ? l_addr[1] : ureg_src(l[i][1]); 286 fetch_four(shader, l[i], s_addr, ureg_DECL_sampler(shader, 1)); 287 } 288 289 for (i = 0; i < NR_RENDER_TARGETS; ++i) { 290 if(i > 0) 291 increment_addr(shader, r, r_addr, true, true, i, BLOCK_HEIGHT); 292 293 struct ureg_src s_addr[2] = { ureg_src(r[0]), ureg_src(r[1]) }; 294 s_addr[0] = i == 0 ? r_addr[0] : ureg_src(r[0]); 295 s_addr[1] = i == 0 ? r_addr[1] : ureg_src(r[1]); 296 fetch_four(shader, r, s_addr, ureg_DECL_sampler(shader, 0)); 297 298 for (j = 0; j < 4; ++j) { 299 matrix_mul(shader, ureg_writemask(fragment[i], TGSI_WRITEMASK_X << j), l[j], r); 300 } 301 } 302 303 for (i = 0; i < 4; ++i) { 304 ureg_release_temporary(shader, l[i][0]); 305 ureg_release_temporary(shader, l[i][1]); 306 } 307 ureg_release_temporary(shader, r[0]); 308 ureg_release_temporary(shader, r[1]); 309 310 ureg_END(shader); 311 312 return ureg_create_shader_and_destroy(shader, idct->pipe); 313} 314 315static void * 316create_transpose_frag_shader(struct vl_idct *idct) 317{ 318 struct ureg_program *shader; 319 320 struct ureg_src l_addr[2], r_addr[2]; 321 322 struct ureg_dst l[2], r[2]; 323 struct ureg_dst fragment; 324 325 shader = ureg_create(TGSI_PROCESSOR_FRAGMENT); 326 if (!shader) 327 return NULL; 328 329 l_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR0, TGSI_INTERPOLATE_LINEAR); 330 l_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_L_ADDR1, TGSI_INTERPOLATE_LINEAR); 331 332 r_addr[0] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR0, TGSI_INTERPOLATE_LINEAR); 333 r_addr[1] = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_R_ADDR1, TGSI_INTERPOLATE_LINEAR); 334 335 l[0] = ureg_DECL_temporary(shader); 336 l[1] = ureg_DECL_temporary(shader); 337 r[0] = ureg_DECL_temporary(shader); 338 r[1] = ureg_DECL_temporary(shader); 339 340 fetch_four(shader, l, l_addr, ureg_DECL_sampler(shader, 0)); 341 fetch_four(shader, r, r_addr, ureg_DECL_sampler(shader, 1)); 342 343 fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0); 344 345 matrix_mul(shader, ureg_writemask(fragment, TGSI_WRITEMASK_X), l, r); 346 347 ureg_release_temporary(shader, l[0]); 348 ureg_release_temporary(shader, l[1]); 349 ureg_release_temporary(shader, r[0]); 350 ureg_release_temporary(shader, r[1]); 351 352 ureg_END(shader); 353 354 return ureg_create_shader_and_destroy(shader, idct->pipe); 355} 356 357static bool 358init_shaders(struct vl_idct *idct) 359{ 360 idct->matrix_vs = create_vert_shader(idct, true); 361 if (!idct->matrix_vs) 362 goto error_matrix_vs; 363 364 idct->matrix_fs = create_matrix_frag_shader(idct); 365 if (!idct->matrix_fs) 366 goto error_matrix_fs; 367 368 idct->transpose_vs = create_vert_shader(idct, false); 369 if (!idct->transpose_vs) 370 goto error_transpose_vs; 371 372 idct->transpose_fs = create_transpose_frag_shader(idct); 373 if (!idct->transpose_fs) 374 goto error_transpose_fs; 375 376 return true; 377 378error_transpose_fs: 379 idct->pipe->delete_vs_state(idct->pipe, idct->transpose_vs); 380 381error_transpose_vs: 382 idct->pipe->delete_fs_state(idct->pipe, idct->matrix_fs); 383 384error_matrix_fs: 385 idct->pipe->delete_vs_state(idct->pipe, idct->matrix_vs); 386 387error_matrix_vs: 388 return false; 389} 390 391static void 392cleanup_shaders(struct vl_idct *idct) 393{ 394 idct->pipe->delete_vs_state(idct->pipe, idct->matrix_vs); 395 idct->pipe->delete_fs_state(idct->pipe, idct->matrix_fs); 396 idct->pipe->delete_vs_state(idct->pipe, idct->transpose_vs); 397 idct->pipe->delete_fs_state(idct->pipe, idct->transpose_fs); 398} 399 400static bool 401init_state(struct vl_idct *idct) 402{ 403 struct pipe_sampler_state sampler; 404 struct pipe_rasterizer_state rs_state; 405 unsigned i; 406 407 assert(idct); 408 409 memset(&rs_state, 0, sizeof(rs_state)); 410 rs_state.gl_rasterization_rules = false; 411 idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state); 412 if (!idct->rs_state) 413 goto error_rs_state; 414 415 for (i = 0; i < 2; ++i) { 416 memset(&sampler, 0, sizeof(sampler)); 417 sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; 418 sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; 419 sampler.wrap_r = PIPE_TEX_WRAP_REPEAT; 420 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 421 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 422 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 423 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 424 sampler.compare_func = PIPE_FUNC_ALWAYS; 425 sampler.normalized_coords = 1; 426 idct->samplers[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 427 if (!idct->samplers[i]) 428 goto error_samplers; 429 } 430 431 return true; 432 433error_samplers: 434 for (i = 0; i < 2; ++i) 435 if (idct->samplers[i]) 436 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 437 438 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 439 440error_rs_state: 441 return false; 442} 443 444static void 445cleanup_state(struct vl_idct *idct) 446{ 447 unsigned i; 448 449 for (i = 0; i < 2; ++i) 450 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 451 452 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 453} 454 455static bool 456init_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 457{ 458 struct pipe_resource tex_templ, *tex; 459 struct pipe_sampler_view sv_templ; 460 struct pipe_surface surf_templ; 461 unsigned i; 462 463 assert(idct && buffer); 464 465 memset(&tex_templ, 0, sizeof(tex_templ)); 466 tex_templ.target = PIPE_TEXTURE_3D; 467 tex_templ.format = PIPE_FORMAT_R16G16B16A16_SNORM; 468 tex_templ.width0 = idct->buffer_width / NR_RENDER_TARGETS; 469 tex_templ.height0 = idct->buffer_height / 4; 470 tex_templ.depth0 = NR_RENDER_TARGETS; 471 tex_templ.array_size = 1; 472 tex_templ.bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 473 tex_templ.usage = PIPE_USAGE_STATIC; 474 475 tex = idct->pipe->screen->resource_create(idct->pipe->screen, &tex_templ); 476 if (!tex) 477 goto error_tex; 478 479 memset(&sv_templ, 0, sizeof(sv_templ)); 480 u_sampler_view_default_template(&sv_templ, tex, tex->format); 481 buffer->sampler_views.individual.intermediate = 482 idct->pipe->create_sampler_view(idct->pipe, tex, &sv_templ); 483 if (!buffer->sampler_views.individual.intermediate) 484 goto error_sampler_view; 485 486 buffer->fb_state[0].width = tex->width0; 487 buffer->fb_state[0].height = tex->height0; 488 buffer->fb_state[0].nr_cbufs = NR_RENDER_TARGETS; 489 for(i = 0; i < NR_RENDER_TARGETS; ++i) { 490 memset(&surf_templ, 0, sizeof(surf_templ)); 491 surf_templ.format = tex->format; 492 surf_templ.u.tex.first_layer = i; 493 surf_templ.u.tex.last_layer = i; 494 surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 495 buffer->fb_state[0].cbufs[i] = idct->pipe->create_surface( 496 idct->pipe, tex, &surf_templ); 497 498 if (!buffer->fb_state[0].cbufs[i]) 499 goto error_surfaces; 500 } 501 502 buffer->viewport[0].scale[0] = tex->width0; 503 buffer->viewport[0].scale[1] = tex->height0; 504 505 pipe_resource_reference(&tex, NULL); 506 return true; 507 508error_surfaces: 509 for(i = 0; i < NR_RENDER_TARGETS; ++i) 510 pipe_surface_reference(&buffer->fb_state[0].cbufs[i], NULL); 511 512 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, NULL); 513 514error_sampler_view: 515 pipe_resource_reference(&tex, NULL); 516 517error_tex: 518 return false; 519} 520 521static void 522cleanup_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 523{ 524 unsigned i; 525 526 assert(idct && buffer); 527 528 for(i = 0; i < NR_RENDER_TARGETS; ++i) 529 pipe_surface_reference(&buffer->fb_state[0].cbufs[i], NULL); 530 531 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, NULL); 532} 533 534struct pipe_sampler_view * 535vl_idct_upload_matrix(struct pipe_context *pipe, float scale) 536{ 537 struct pipe_resource tex_templ, *matrix; 538 struct pipe_sampler_view sv_templ, *sv; 539 struct pipe_transfer *buf_transfer; 540 unsigned i, j, pitch; 541 float *f; 542 543 struct pipe_box rect = 544 { 545 0, 0, 0, 546 BLOCK_WIDTH / 4, 547 BLOCK_HEIGHT, 548 1 549 }; 550 551 assert(pipe); 552 553 memset(&tex_templ, 0, sizeof(tex_templ)); 554 tex_templ.target = PIPE_TEXTURE_2D; 555 tex_templ.format = PIPE_FORMAT_R32G32B32A32_FLOAT; 556 tex_templ.last_level = 0; 557 tex_templ.width0 = 2; 558 tex_templ.height0 = 8; 559 tex_templ.depth0 = 1; 560 tex_templ.array_size = 1; 561 tex_templ.usage = PIPE_USAGE_IMMUTABLE; 562 tex_templ.bind = PIPE_BIND_SAMPLER_VIEW; 563 tex_templ.flags = 0; 564 565 matrix = pipe->screen->resource_create(pipe->screen, &tex_templ); 566 if (!matrix) 567 goto error_matrix; 568 569 buf_transfer = pipe->get_transfer 570 ( 571 pipe, matrix, 572 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 573 &rect 574 ); 575 if (!buf_transfer) 576 goto error_transfer; 577 578 pitch = buf_transfer->stride / sizeof(float); 579 580 f = pipe->transfer_map(pipe, buf_transfer); 581 if (!f) 582 goto error_map; 583 584 for(i = 0; i < BLOCK_HEIGHT; ++i) 585 for(j = 0; j < BLOCK_WIDTH; ++j) 586 // transpose and scale 587 f[i * pitch + j] = const_matrix[j][i] * scale; 588 589 pipe->transfer_unmap(pipe, buf_transfer); 590 pipe->transfer_destroy(pipe, buf_transfer); 591 592 memset(&sv_templ, 0, sizeof(sv_templ)); 593 u_sampler_view_default_template(&sv_templ, matrix, matrix->format); 594 sv = pipe->create_sampler_view(pipe, matrix, &sv_templ); 595 pipe_resource_reference(&matrix, NULL); 596 if (!sv) 597 goto error_map; 598 599 return sv; 600 601error_map: 602 pipe->transfer_destroy(pipe, buf_transfer); 603 604error_transfer: 605 pipe_resource_reference(&matrix, NULL); 606 607error_matrix: 608 return NULL; 609} 610 611bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, 612 unsigned buffer_width, unsigned buffer_height, 613 unsigned blocks_x, unsigned blocks_y, 614 struct pipe_sampler_view *matrix) 615{ 616 assert(idct && pipe && matrix); 617 618 idct->pipe = pipe; 619 idct->buffer_width = buffer_width; 620 idct->buffer_height = buffer_height; 621 idct->blocks_x = blocks_x; 622 idct->blocks_y = blocks_y; 623 pipe_sampler_view_reference(&idct->matrix, matrix); 624 625 if(!init_shaders(idct)) 626 return false; 627 628 if(!init_state(idct)) { 629 cleanup_shaders(idct); 630 return false; 631 } 632 633 return true; 634} 635 636void 637vl_idct_cleanup(struct vl_idct *idct) 638{ 639 cleanup_shaders(idct); 640 cleanup_state(idct); 641 642 pipe_sampler_view_reference(&idct->matrix, NULL); 643} 644 645bool 646vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, 647 struct pipe_sampler_view *source, struct pipe_surface *destination) 648{ 649 unsigned i; 650 651 assert(buffer); 652 assert(idct); 653 assert(source); 654 assert(destination); 655 656 pipe_sampler_view_reference(&buffer->sampler_views.individual.matrix, idct->matrix); 657 pipe_sampler_view_reference(&buffer->sampler_views.individual.source, source); 658 pipe_sampler_view_reference(&buffer->sampler_views.individual.transpose, idct->matrix); 659 660 if (!init_intermediate(idct, buffer)) 661 return false; 662 663 /* init state */ 664 buffer->fb_state[1].width = destination->texture->width0; 665 buffer->fb_state[1].height = destination->texture->height0; 666 buffer->fb_state[1].nr_cbufs = 1; 667 pipe_surface_reference(&buffer->fb_state[1].cbufs[0], destination); 668 669 buffer->viewport[1].scale[0] = destination->texture->width0; 670 buffer->viewport[1].scale[1] = destination->texture->height0; 671 672 for(i = 0; i < 2; ++i) { 673 buffer->viewport[i].scale[2] = 1; 674 buffer->viewport[i].scale[3] = 1; 675 buffer->viewport[i].translate[0] = 0; 676 buffer->viewport[i].translate[1] = 0; 677 buffer->viewport[i].translate[2] = 0; 678 buffer->viewport[i].translate[3] = 0; 679 680 buffer->fb_state[i].zsbuf = NULL; 681 } 682 683 return true; 684} 685 686void 687vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer) 688{ 689 unsigned i; 690 691 assert(idct && buffer); 692 693 for(i = 0; i < NR_RENDER_TARGETS; ++i) 694 pipe_surface_reference(&buffer->fb_state[0].cbufs[i], NULL); 695 696 pipe_surface_reference(&buffer->fb_state[1].cbufs[0], NULL); 697 698 cleanup_intermediate(idct, buffer); 699} 700 701void 702vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer, unsigned num_instances) 703{ 704 unsigned num_verts; 705 706 assert(idct); 707 assert(buffer); 708 709 if(num_instances > 0) { 710 num_verts = idct->blocks_x * idct->blocks_y * 4; 711 712 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 713 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers); 714 715 /* first stage */ 716 idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state[0]); 717 idct->pipe->set_viewport_state(idct->pipe, &buffer->viewport[0]); 718 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[0]); 719 idct->pipe->bind_vs_state(idct->pipe, idct->matrix_vs); 720 idct->pipe->bind_fs_state(idct->pipe, idct->matrix_fs); 721 util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_QUADS, 0, num_verts, 0, num_instances); 722 723 /* second stage */ 724 idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state[1]); 725 idct->pipe->set_viewport_state(idct->pipe, &buffer->viewport[1]); 726 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[1]); 727 idct->pipe->bind_vs_state(idct->pipe, idct->transpose_vs); 728 idct->pipe->bind_fs_state(idct->pipe, idct->transpose_fs); 729 util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_QUADS, 0, num_verts, 0, num_instances); 730 } 731} 732