vl_idct.c revision 0a2310b375068694d5700395aededc3fe68a0f3a
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 * 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 / idct->nr_of_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[idct->nr_of_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 < idct->nr_of_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 < idct->nr_of_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_blend_state blend; 404 struct pipe_rasterizer_state rs_state; 405 struct pipe_sampler_state sampler; 406 unsigned i; 407 408 assert(idct); 409 410 memset(&rs_state, 0, sizeof(rs_state)); 411 rs_state.gl_rasterization_rules = false; 412 idct->rs_state = idct->pipe->create_rasterizer_state(idct->pipe, &rs_state); 413 if (!idct->rs_state) 414 goto error_rs_state; 415 416 memset(&blend, 0, sizeof blend); 417 418 blend.independent_blend_enable = 0; 419 blend.rt[0].blend_enable = 0; 420 blend.rt[0].rgb_func = PIPE_BLEND_ADD; 421 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; 422 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE; 423 blend.rt[0].alpha_func = PIPE_BLEND_ADD; 424 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 425 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; 426 blend.logicop_enable = 0; 427 blend.logicop_func = PIPE_LOGICOP_CLEAR; 428 /* Needed to allow color writes to FB, even if blending disabled */ 429 blend.rt[0].colormask = PIPE_MASK_RGBA; 430 blend.dither = 0; 431 idct->blend = idct->pipe->create_blend_state(idct->pipe, &blend); 432 if (!idct->blend) 433 goto error_blend; 434 435 for (i = 0; i < 2; ++i) { 436 memset(&sampler, 0, sizeof(sampler)); 437 sampler.wrap_s = PIPE_TEX_WRAP_REPEAT; 438 sampler.wrap_t = PIPE_TEX_WRAP_REPEAT; 439 sampler.wrap_r = PIPE_TEX_WRAP_REPEAT; 440 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST; 441 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE; 442 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST; 443 sampler.compare_mode = PIPE_TEX_COMPARE_NONE; 444 sampler.compare_func = PIPE_FUNC_ALWAYS; 445 sampler.normalized_coords = 1; 446 idct->samplers[i] = idct->pipe->create_sampler_state(idct->pipe, &sampler); 447 if (!idct->samplers[i]) 448 goto error_samplers; 449 } 450 451 return true; 452 453error_samplers: 454 for (i = 0; i < 2; ++i) 455 if (idct->samplers[i]) 456 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 457 458 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 459 460error_blend: 461 idct->pipe->delete_blend_state(idct->pipe, idct->blend); 462 463error_rs_state: 464 return false; 465} 466 467static void 468cleanup_state(struct vl_idct *idct) 469{ 470 unsigned i; 471 472 for (i = 0; i < 2; ++i) 473 idct->pipe->delete_sampler_state(idct->pipe, idct->samplers[i]); 474 475 idct->pipe->delete_rasterizer_state(idct->pipe, idct->rs_state); 476 idct->pipe->delete_blend_state(idct->pipe, idct->blend); 477} 478 479static bool 480init_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 481{ 482 struct pipe_resource *tex; 483 struct pipe_surface surf_templ; 484 unsigned i; 485 486 assert(idct && buffer); 487 488 tex = buffer->sampler_views.individual.intermediate->texture; 489 490 buffer->fb_state[0].width = tex->width0; 491 buffer->fb_state[0].height = tex->height0; 492 buffer->fb_state[0].nr_cbufs = idct->nr_of_render_targets; 493 for(i = 0; i < idct->nr_of_render_targets; ++i) { 494 memset(&surf_templ, 0, sizeof(surf_templ)); 495 surf_templ.format = tex->format; 496 surf_templ.u.tex.first_layer = i; 497 surf_templ.u.tex.last_layer = i; 498 surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET; 499 buffer->fb_state[0].cbufs[i] = idct->pipe->create_surface( 500 idct->pipe, tex, &surf_templ); 501 502 if (!buffer->fb_state[0].cbufs[i]) 503 goto error_surfaces; 504 } 505 506 buffer->viewport[0].scale[0] = tex->width0; 507 buffer->viewport[0].scale[1] = tex->height0; 508 509 return true; 510 511error_surfaces: 512 for(i = 0; i < idct->nr_of_render_targets; ++i) 513 pipe_surface_reference(&buffer->fb_state[0].cbufs[i], NULL); 514 515 return false; 516} 517 518static void 519cleanup_intermediate(struct vl_idct *idct, struct vl_idct_buffer *buffer) 520{ 521 unsigned i; 522 523 assert(idct && buffer); 524 525 for(i = 0; i < idct->nr_of_render_targets; ++i) 526 pipe_surface_reference(&buffer->fb_state[0].cbufs[i], NULL); 527 528 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, NULL); 529} 530 531struct pipe_sampler_view * 532vl_idct_upload_matrix(struct pipe_context *pipe, float scale) 533{ 534 struct pipe_resource tex_templ, *matrix; 535 struct pipe_sampler_view sv_templ, *sv; 536 struct pipe_transfer *buf_transfer; 537 unsigned i, j, pitch; 538 float *f; 539 540 struct pipe_box rect = 541 { 542 0, 0, 0, 543 BLOCK_WIDTH / 4, 544 BLOCK_HEIGHT, 545 1 546 }; 547 548 assert(pipe); 549 550 memset(&tex_templ, 0, sizeof(tex_templ)); 551 tex_templ.target = PIPE_TEXTURE_2D; 552 tex_templ.format = PIPE_FORMAT_R32G32B32A32_FLOAT; 553 tex_templ.last_level = 0; 554 tex_templ.width0 = 2; 555 tex_templ.height0 = 8; 556 tex_templ.depth0 = 1; 557 tex_templ.array_size = 1; 558 tex_templ.usage = PIPE_USAGE_IMMUTABLE; 559 tex_templ.bind = PIPE_BIND_SAMPLER_VIEW; 560 tex_templ.flags = 0; 561 562 matrix = pipe->screen->resource_create(pipe->screen, &tex_templ); 563 if (!matrix) 564 goto error_matrix; 565 566 buf_transfer = pipe->get_transfer 567 ( 568 pipe, matrix, 569 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 570 &rect 571 ); 572 if (!buf_transfer) 573 goto error_transfer; 574 575 pitch = buf_transfer->stride / sizeof(float); 576 577 f = pipe->transfer_map(pipe, buf_transfer); 578 if (!f) 579 goto error_map; 580 581 for(i = 0; i < BLOCK_HEIGHT; ++i) 582 for(j = 0; j < BLOCK_WIDTH; ++j) 583 // transpose and scale 584 f[i * pitch + j] = const_matrix[j][i] * scale; 585 586 pipe->transfer_unmap(pipe, buf_transfer); 587 pipe->transfer_destroy(pipe, buf_transfer); 588 589 memset(&sv_templ, 0, sizeof(sv_templ)); 590 u_sampler_view_default_template(&sv_templ, matrix, matrix->format); 591 sv = pipe->create_sampler_view(pipe, matrix, &sv_templ); 592 pipe_resource_reference(&matrix, NULL); 593 if (!sv) 594 goto error_map; 595 596 return sv; 597 598error_map: 599 pipe->transfer_destroy(pipe, buf_transfer); 600 601error_transfer: 602 pipe_resource_reference(&matrix, NULL); 603 604error_matrix: 605 return NULL; 606} 607 608bool vl_idct_init(struct vl_idct *idct, struct pipe_context *pipe, 609 unsigned buffer_width, unsigned buffer_height, 610 unsigned blocks_x, unsigned blocks_y, 611 unsigned nr_of_render_targets, 612 struct pipe_sampler_view *matrix, 613 struct pipe_sampler_view *transpose) 614{ 615 assert(idct && pipe && matrix); 616 617 idct->pipe = pipe; 618 idct->buffer_width = buffer_width; 619 idct->buffer_height = buffer_height; 620 idct->blocks_x = blocks_x; 621 idct->blocks_y = blocks_y; 622 idct->nr_of_render_targets = nr_of_render_targets; 623 624 pipe_sampler_view_reference(&idct->matrix, matrix); 625 pipe_sampler_view_reference(&idct->transpose, transpose); 626 627 if(!init_shaders(idct)) 628 return false; 629 630 if(!init_state(idct)) { 631 cleanup_shaders(idct); 632 return false; 633 } 634 635 return true; 636} 637 638void 639vl_idct_cleanup(struct vl_idct *idct) 640{ 641 cleanup_shaders(idct); 642 cleanup_state(idct); 643 644 pipe_sampler_view_reference(&idct->matrix, NULL); 645} 646 647bool 648vl_idct_init_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer, 649 struct pipe_sampler_view *source, 650 struct pipe_sampler_view *intermediate, 651 struct pipe_surface *destination) 652{ 653 unsigned i; 654 655 assert(buffer); 656 assert(idct); 657 assert(source); 658 assert(destination); 659 660 pipe_sampler_view_reference(&buffer->sampler_views.individual.matrix, idct->matrix); 661 pipe_sampler_view_reference(&buffer->sampler_views.individual.source, source); 662 pipe_sampler_view_reference(&buffer->sampler_views.individual.transpose, idct->transpose); 663 pipe_sampler_view_reference(&buffer->sampler_views.individual.intermediate, intermediate); 664 665 if (!init_intermediate(idct, buffer)) 666 return false; 667 668 /* init state */ 669 buffer->fb_state[1].width = destination->texture->width0; 670 buffer->fb_state[1].height = destination->texture->height0; 671 buffer->fb_state[1].nr_cbufs = 1; 672 pipe_surface_reference(&buffer->fb_state[1].cbufs[0], destination); 673 674 buffer->viewport[1].scale[0] = destination->texture->width0; 675 buffer->viewport[1].scale[1] = destination->texture->height0; 676 677 for(i = 0; i < 2; ++i) { 678 buffer->viewport[i].scale[2] = 1; 679 buffer->viewport[i].scale[3] = 1; 680 buffer->viewport[i].translate[0] = 0; 681 buffer->viewport[i].translate[1] = 0; 682 buffer->viewport[i].translate[2] = 0; 683 buffer->viewport[i].translate[3] = 0; 684 685 buffer->fb_state[i].zsbuf = NULL; 686 } 687 688 return true; 689} 690 691void 692vl_idct_cleanup_buffer(struct vl_idct *idct, struct vl_idct_buffer *buffer) 693{ 694 unsigned i; 695 696 assert(idct && buffer); 697 698 for(i = 0; i < idct->nr_of_render_targets; ++i) 699 pipe_surface_reference(&buffer->fb_state[0].cbufs[i], NULL); 700 701 pipe_surface_reference(&buffer->fb_state[1].cbufs[0], NULL); 702 703 cleanup_intermediate(idct, buffer); 704} 705 706void 707vl_idct_flush(struct vl_idct *idct, struct vl_idct_buffer *buffer, unsigned num_instances) 708{ 709 unsigned num_verts; 710 711 assert(idct); 712 assert(buffer); 713 714 if(num_instances > 0) { 715 num_verts = idct->blocks_x * idct->blocks_y * 4; 716 717 idct->pipe->bind_rasterizer_state(idct->pipe, idct->rs_state); 718 idct->pipe->bind_blend_state(idct->pipe, idct->blend); 719 idct->pipe->bind_fragment_sampler_states(idct->pipe, 2, idct->samplers); 720 721 /* first stage */ 722 idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state[0]); 723 idct->pipe->set_viewport_state(idct->pipe, &buffer->viewport[0]); 724 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[0]); 725 idct->pipe->bind_vs_state(idct->pipe, idct->matrix_vs); 726 idct->pipe->bind_fs_state(idct->pipe, idct->matrix_fs); 727 util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_QUADS, 0, num_verts, 0, num_instances); 728 729 /* second stage */ 730 idct->pipe->set_framebuffer_state(idct->pipe, &buffer->fb_state[1]); 731 idct->pipe->set_viewport_state(idct->pipe, &buffer->viewport[1]); 732 idct->pipe->set_fragment_sampler_views(idct->pipe, 2, buffer->sampler_views.stage[1]); 733 idct->pipe->bind_vs_state(idct->pipe, idct->transpose_vs); 734 idct->pipe->bind_fs_state(idct->pipe, idct->transpose_fs); 735 util_draw_arrays_instanced(idct->pipe, PIPE_PRIM_QUADS, 0, num_verts, 0, num_instances); 736 } 737} 738