vl_mpeg12_decoder.c revision fcdf50f74befad8d89eb3f9cdfd88b82d1daa98c
1/************************************************************************** 2 * 3 * Copyright 2009 Younes Manton. 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 <math.h> 29#include <assert.h> 30 31#include <util/u_memory.h> 32#include <util/u_rect.h> 33#include <util/u_video.h> 34 35#include "vl_mpeg12_decoder.h" 36#include "vl_defines.h" 37 38#define SCALE_FACTOR_16_TO_9 (32768.0f / 256.0f) 39 40static const unsigned const_empty_block_mask_420[3][2][2] = { 41 { { 0x20, 0x10 }, { 0x08, 0x04 } }, 42 { { 0x02, 0x02 }, { 0x02, 0x02 } }, 43 { { 0x01, 0x01 }, { 0x01, 0x01 } } 44}; 45 46static void 47map_buffers(struct vl_mpeg12_decoder *ctx, struct vl_mpeg12_buffer *buffer) 48{ 49 struct pipe_sampler_view **sampler_views; 50 struct pipe_resource *tex; 51 unsigned i; 52 53 assert(ctx && buffer); 54 55 if (ctx->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) 56 sampler_views = buffer->idct_source->get_sampler_views(buffer->idct_source); 57 else 58 sampler_views = buffer->mc_source->get_sampler_views(buffer->mc_source); 59 assert(sampler_views); 60 61 for (i = 0; i < VL_MAX_PLANES; ++i) { 62 tex = sampler_views[i]->texture; 63 64 struct pipe_box rect = 65 { 66 0, 0, 0, 67 tex->width0, 68 tex->height0, 69 1 70 }; 71 72 buffer->tex_transfer[i] = ctx->pipe->get_transfer 73 ( 74 ctx->pipe, tex, 75 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD, 76 &rect 77 ); 78 79 buffer->texels[i] = ctx->pipe->transfer_map(ctx->pipe, buffer->tex_transfer[i]); 80 } 81} 82 83static void 84upload_block(struct vl_mpeg12_buffer *buffer, unsigned plane, unsigned x, unsigned y, short *block) 85{ 86 unsigned tex_pitch; 87 short *texels; 88 89 unsigned i; 90 91 assert(buffer); 92 assert(block); 93 94 tex_pitch = buffer->tex_transfer[plane]->stride / sizeof(short); 95 texels = buffer->texels[plane] + y * tex_pitch * BLOCK_HEIGHT + x * BLOCK_WIDTH; 96 97 for (i = 0; i < BLOCK_HEIGHT; ++i) 98 memcpy(texels + i * tex_pitch, block + i * BLOCK_WIDTH, BLOCK_WIDTH * sizeof(short)); 99} 100 101static void 102upload_buffer(struct vl_mpeg12_decoder *ctx, 103 struct vl_mpeg12_buffer *buffer, 104 struct pipe_mpeg12_macroblock *mb) 105{ 106 short *blocks; 107 unsigned tb, x, y; 108 109 assert(ctx); 110 assert(buffer); 111 assert(mb); 112 113 blocks = mb->blocks; 114 115 for (y = 0; y < 2; ++y) { 116 for (x = 0; x < 2; ++x, ++tb) { 117 if (mb->cbp & (*ctx->empty_block_mask)[0][y][x]) { 118 upload_block(buffer, 0, mb->mbx * 2 + x, mb->mby * 2 + y, blocks); 119 blocks += BLOCK_WIDTH * BLOCK_HEIGHT; 120 } 121 } 122 } 123 124 /* TODO: Implement 422, 444 */ 125 assert(ctx->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420); 126 127 for (tb = 1; tb < 3; ++tb) { 128 if (mb->cbp & (*ctx->empty_block_mask)[tb][0][0]) { 129 upload_block(buffer, tb, mb->mbx, mb->mby, blocks); 130 blocks += BLOCK_WIDTH * BLOCK_HEIGHT; 131 } 132 } 133} 134 135static void 136unmap_buffers(struct vl_mpeg12_decoder *ctx, struct vl_mpeg12_buffer *buffer) 137{ 138 unsigned i; 139 140 assert(ctx && buffer); 141 142 for (i = 0; i < VL_MAX_PLANES; ++i) { 143 ctx->pipe->transfer_unmap(ctx->pipe, buffer->tex_transfer[i]); 144 ctx->pipe->transfer_destroy(ctx->pipe, buffer->tex_transfer[i]); 145 } 146} 147 148static void 149vl_mpeg12_buffer_destroy(struct pipe_video_decode_buffer *buffer) 150{ 151 struct vl_mpeg12_buffer *buf = (struct vl_mpeg12_buffer*)buffer; 152 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder*)buf->base.decoder; 153 assert(buf && dec); 154 155 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) { 156 buf->idct_source->destroy(buf->idct_source); 157 vl_idct_cleanup_buffer(&dec->idct_y, &buf->idct[0]); 158 vl_idct_cleanup_buffer(&dec->idct_c, &buf->idct[1]); 159 vl_idct_cleanup_buffer(&dec->idct_c, &buf->idct[2]); 160 } 161 buf->mc_source->destroy(buf->mc_source); 162 vl_vb_cleanup(&buf->vertex_stream); 163 vl_mpeg12_mc_cleanup_buffer(&buf->mc[0]); 164 vl_mpeg12_mc_cleanup_buffer(&buf->mc[1]); 165 vl_mpeg12_mc_cleanup_buffer(&buf->mc[2]); 166 167 FREE(buf); 168} 169 170static void 171vl_mpeg12_buffer_map(struct pipe_video_decode_buffer *buffer) 172{ 173 struct vl_mpeg12_buffer *buf = (struct vl_mpeg12_buffer*)buffer; 174 struct vl_mpeg12_decoder *dec; 175 assert(buf); 176 177 dec = (struct vl_mpeg12_decoder *)buf->base.decoder; 178 assert(dec); 179 180 vl_vb_map(&buf->vertex_stream, dec->pipe); 181 map_buffers(dec, buf); 182} 183 184static void 185vl_mpeg12_buffer_add_macroblocks(struct pipe_video_decode_buffer *buffer, 186 unsigned num_macroblocks, 187 struct pipe_macroblock *macroblocks) 188{ 189 struct pipe_mpeg12_macroblock *mb = (struct pipe_mpeg12_macroblock*)macroblocks; 190 struct vl_mpeg12_buffer *buf = (struct vl_mpeg12_buffer*)buffer; 191 struct vl_mpeg12_decoder *dec; 192 unsigned i; 193 194 assert(buf); 195 196 dec = (struct vl_mpeg12_decoder*)buf->base.decoder; 197 assert(dec); 198 199 assert(num_macroblocks); 200 assert(macroblocks); 201 assert(macroblocks->codec == PIPE_VIDEO_CODEC_MPEG12); 202 203 for ( i = 0; i < num_macroblocks; ++i ) { 204 vl_vb_add_block(&buf->vertex_stream, &mb[i], dec->empty_block_mask); 205 upload_buffer(dec, buf, &mb[i]); 206 } 207} 208 209static void 210vl_mpeg12_buffer_unmap(struct pipe_video_decode_buffer *buffer) 211{ 212 struct vl_mpeg12_buffer *buf = (struct vl_mpeg12_buffer*)buffer; 213 struct vl_mpeg12_decoder *dec; 214 assert(buf); 215 216 dec = (struct vl_mpeg12_decoder *)buf->base.decoder; 217 assert(dec); 218 219 vl_vb_unmap(&buf->vertex_stream, dec->pipe); 220 unmap_buffers(dec, buf); 221} 222 223static void 224vl_mpeg12_destroy(struct pipe_video_decoder *decoder) 225{ 226 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder*)decoder; 227 228 assert(decoder); 229 230 /* Asserted in softpipe_delete_fs_state() for some reason */ 231 dec->pipe->bind_vs_state(dec->pipe, NULL); 232 dec->pipe->bind_fs_state(dec->pipe, NULL); 233 234 dec->pipe->delete_blend_state(dec->pipe, dec->blend); 235 dec->pipe->delete_rasterizer_state(dec->pipe, dec->rast); 236 dec->pipe->delete_depth_stencil_alpha_state(dec->pipe, dec->dsa); 237 238 vl_mpeg12_mc_renderer_cleanup(&dec->mc); 239 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) { 240 vl_idct_cleanup(&dec->idct_y); 241 vl_idct_cleanup(&dec->idct_c); 242 } 243 dec->pipe->delete_vertex_elements_state(dec->pipe, dec->ves[0]); 244 dec->pipe->delete_vertex_elements_state(dec->pipe, dec->ves[1]); 245 dec->pipe->delete_vertex_elements_state(dec->pipe, dec->ves[2]); 246 pipe_resource_reference(&dec->quads.buffer, NULL); 247 248 FREE(dec); 249} 250 251static struct pipe_video_decode_buffer * 252vl_mpeg12_create_buffer(struct pipe_video_decoder *decoder) 253{ 254 const enum pipe_format idct_source_formats[3] = { 255 PIPE_FORMAT_R16G16B16A16_SNORM, 256 PIPE_FORMAT_R16G16B16A16_SNORM, 257 PIPE_FORMAT_R16G16B16A16_SNORM 258 }; 259 260 const enum pipe_format mc_source_formats[3] = { 261 PIPE_FORMAT_R16_SNORM, 262 PIPE_FORMAT_R16_SNORM, 263 PIPE_FORMAT_R16_SNORM 264 }; 265 266 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder*)decoder; 267 struct vl_mpeg12_buffer *buffer; 268 269 struct pipe_sampler_view **idct_views, **mc_views; 270 struct pipe_surface **idct_surfaces; 271 272 assert(dec); 273 274 buffer = CALLOC_STRUCT(vl_mpeg12_buffer); 275 if (buffer == NULL) 276 return NULL; 277 278 buffer->base.decoder = decoder; 279 buffer->base.destroy = vl_mpeg12_buffer_destroy; 280 buffer->base.map = vl_mpeg12_buffer_map; 281 buffer->base.add_macroblocks = vl_mpeg12_buffer_add_macroblocks; 282 buffer->base.unmap = vl_mpeg12_buffer_unmap; 283 284 buffer->vertex_bufs.individual.quad.stride = dec->quads.stride; 285 buffer->vertex_bufs.individual.quad.buffer_offset = dec->quads.buffer_offset; 286 pipe_resource_reference(&buffer->vertex_bufs.individual.quad.buffer, dec->quads.buffer); 287 288 buffer->vertex_bufs.individual.stream = vl_vb_init(&buffer->vertex_stream, dec->pipe, 289 dec->base.width / MACROBLOCK_WIDTH * 290 dec->base.height / MACROBLOCK_HEIGHT); 291 if (!buffer->vertex_bufs.individual.stream.buffer) 292 goto error_vertex_stream; 293 294 buffer->mc_source = vl_video_buffer_init(dec->base.context, dec->pipe, 295 dec->base.width, dec->base.height, 1, 296 dec->base.chroma_format, 3, 297 mc_source_formats, 298 PIPE_USAGE_STATIC); 299 300 if (!buffer->mc_source) 301 goto error_mc_source; 302 303 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) { 304 buffer->idct_source = vl_video_buffer_init(dec->base.context, dec->pipe, 305 dec->base.width / 4, dec->base.height, 1, 306 dec->base.chroma_format, 3, 307 idct_source_formats, 308 PIPE_USAGE_STREAM); 309 if (!buffer->idct_source) 310 goto error_idct_source; 311 312 313 idct_views = buffer->idct_source->get_sampler_views(buffer->idct_source); 314 if (!idct_views) 315 goto error_idct_views; 316 317 idct_surfaces = buffer->mc_source->get_surfaces(buffer->mc_source); 318 if (!idct_surfaces) 319 goto error_idct_surfaces; 320 321 if (!vl_idct_init_buffer(&dec->idct_y, &buffer->idct[0], 322 idct_views[0], idct_surfaces[0])) 323 goto error_idct_y; 324 325 if (!vl_idct_init_buffer(&dec->idct_c, &buffer->idct[1], 326 idct_views[1], idct_surfaces[1])) 327 goto error_idct_cb; 328 329 if (!vl_idct_init_buffer(&dec->idct_c, &buffer->idct[2], 330 idct_views[2], idct_surfaces[2])) 331 goto error_idct_cr; 332 } 333 334 mc_views = buffer->mc_source->get_sampler_views(buffer->mc_source); 335 if (!mc_views) 336 goto error_mc_views; 337 338 if(!vl_mpeg12_mc_init_buffer(&dec->mc, &buffer->mc[0], mc_views[0])) 339 goto error_mc_y; 340 341 if(!vl_mpeg12_mc_init_buffer(&dec->mc, &buffer->mc[1], mc_views[1])) 342 goto error_mc_cb; 343 344 if(!vl_mpeg12_mc_init_buffer(&dec->mc, &buffer->mc[2], mc_views[2])) 345 goto error_mc_cr; 346 347 return &buffer->base; 348 349error_mc_cr: 350 vl_mpeg12_mc_cleanup_buffer(&buffer->mc[1]); 351 352error_mc_cb: 353 vl_mpeg12_mc_cleanup_buffer(&buffer->mc[0]); 354 355error_mc_y: 356error_mc_views: 357 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) 358 vl_idct_cleanup_buffer(&dec->idct_c, &buffer->idct[2]); 359 360error_idct_cr: 361 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) 362 vl_idct_cleanup_buffer(&dec->idct_c, &buffer->idct[1]); 363 364error_idct_cb: 365 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) 366 vl_idct_cleanup_buffer(&dec->idct_y, &buffer->idct[0]); 367 368error_idct_y: 369error_idct_surfaces: 370error_idct_views: 371 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) 372 buffer->idct_source->destroy(buffer->idct_source); 373 374error_idct_source: 375 buffer->mc_source->destroy(buffer->mc_source); 376 377error_mc_source: 378 vl_vb_cleanup(&buffer->vertex_stream); 379 380error_vertex_stream: 381 FREE(buffer); 382 return NULL; 383} 384 385static void 386vl_mpeg12_decoder_flush_buffer(struct pipe_video_decode_buffer *buffer, 387 struct pipe_video_buffer *refs[2], 388 struct pipe_video_buffer *dst, 389 struct pipe_fence_handle **fence) 390{ 391 struct vl_mpeg12_buffer *buf = (struct vl_mpeg12_buffer *)buffer; 392 struct vl_mpeg12_decoder *dec; 393 394 struct pipe_sampler_view **sv_past; 395 struct pipe_sampler_view **sv_future; 396 struct pipe_surface **surfaces; 397 398 struct pipe_sampler_view *sv_refs[2]; 399 unsigned ne_start, ne_num, e_start, e_num; 400 unsigned i; 401 402 assert(buf); 403 404 dec = (struct vl_mpeg12_decoder *)buf->base.decoder; 405 assert(dec); 406 407 sv_past = refs[0] ? refs[0]->get_sampler_views(refs[0]) : NULL; 408 sv_future = refs[1] ? refs[1]->get_sampler_views(refs[1]) : NULL; 409 410 surfaces = dst->get_surfaces(dst); 411 412 vl_vb_restart(&buf->vertex_stream, &ne_start, &ne_num, &e_start, &e_num); 413 414 dec->pipe->set_vertex_buffers(dec->pipe, 2, buf->vertex_bufs.all); 415 dec->pipe->bind_blend_state(dec->pipe, dec->blend); 416 417 for (i = 0; i < VL_MAX_PLANES; ++i) { 418 dec->pipe->bind_vertex_elements_state(dec->pipe, dec->ves[i]); 419 420 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) 421 vl_idct_flush(i == 0 ? &dec->idct_y : &dec->idct_c, &buf->idct[i], ne_num); 422 423 sv_refs[0] = sv_past ? sv_past[i] : NULL; 424 sv_refs[1] = sv_future ? sv_future[i] : NULL; 425 426 vl_mpeg12_mc_renderer_flush(&dec->mc, &buf->mc[i], surfaces[i], sv_refs, 427 ne_start, ne_num, e_start, e_num, fence); 428 } 429} 430 431static void 432vl_mpeg12_decoder_clear_buffer(struct pipe_video_decode_buffer *buffer) 433{ 434 struct vl_mpeg12_buffer *buf = (struct vl_mpeg12_buffer *)buffer; 435 unsigned ne_start, ne_num, e_start, e_num; 436 437 assert(buf); 438 439 vl_vb_restart(&buf->vertex_stream, &ne_start, &ne_num, &e_start, &e_num); 440} 441 442static bool 443init_pipe_state(struct vl_mpeg12_decoder *dec) 444{ 445 struct pipe_rasterizer_state rast; 446 struct pipe_blend_state blend; 447 struct pipe_depth_stencil_alpha_state dsa; 448 unsigned i; 449 450 assert(dec); 451 452 memset(&rast, 0, sizeof rast); 453 rast.flatshade = 1; 454 rast.flatshade_first = 0; 455 rast.light_twoside = 0; 456 rast.front_ccw = 1; 457 rast.cull_face = PIPE_FACE_NONE; 458 rast.fill_back = PIPE_POLYGON_MODE_FILL; 459 rast.fill_front = PIPE_POLYGON_MODE_FILL; 460 rast.offset_point = 0; 461 rast.offset_line = 0; 462 rast.scissor = 0; 463 rast.poly_smooth = 0; 464 rast.poly_stipple_enable = 0; 465 rast.sprite_coord_enable = 0; 466 rast.point_size_per_vertex = 0; 467 rast.multisample = 0; 468 rast.line_smooth = 0; 469 rast.line_stipple_enable = 0; 470 rast.line_stipple_factor = 0; 471 rast.line_stipple_pattern = 0; 472 rast.line_last_pixel = 0; 473 rast.line_width = 1; 474 rast.point_smooth = 0; 475 rast.point_quad_rasterization = 0; 476 rast.point_size_per_vertex = 1; 477 rast.offset_units = 1; 478 rast.offset_scale = 1; 479 rast.gl_rasterization_rules = 1; 480 481 dec->rast = dec->pipe->create_rasterizer_state(dec->pipe, &rast); 482 dec->pipe->bind_rasterizer_state(dec->pipe, dec->rast); 483 484 memset(&blend, 0, sizeof blend); 485 486 blend.independent_blend_enable = 0; 487 blend.rt[0].blend_enable = 0; 488 blend.rt[0].rgb_func = PIPE_BLEND_ADD; 489 blend.rt[0].rgb_src_factor = PIPE_BLENDFACTOR_ONE; 490 blend.rt[0].rgb_dst_factor = PIPE_BLENDFACTOR_ONE; 491 blend.rt[0].alpha_func = PIPE_BLEND_ADD; 492 blend.rt[0].alpha_src_factor = PIPE_BLENDFACTOR_ONE; 493 blend.rt[0].alpha_dst_factor = PIPE_BLENDFACTOR_ONE; 494 blend.logicop_enable = 0; 495 blend.logicop_func = PIPE_LOGICOP_CLEAR; 496 /* Needed to allow color writes to FB, even if blending disabled */ 497 blend.rt[0].colormask = PIPE_MASK_RGBA; 498 blend.dither = 0; 499 dec->blend = dec->pipe->create_blend_state(dec->pipe, &blend); 500 501 memset(&dsa, 0, sizeof dsa); 502 dsa.depth.enabled = 0; 503 dsa.depth.writemask = 0; 504 dsa.depth.func = PIPE_FUNC_ALWAYS; 505 for (i = 0; i < 2; ++i) { 506 dsa.stencil[i].enabled = 0; 507 dsa.stencil[i].func = PIPE_FUNC_ALWAYS; 508 dsa.stencil[i].fail_op = PIPE_STENCIL_OP_KEEP; 509 dsa.stencil[i].zpass_op = PIPE_STENCIL_OP_KEEP; 510 dsa.stencil[i].zfail_op = PIPE_STENCIL_OP_KEEP; 511 dsa.stencil[i].valuemask = 0; 512 dsa.stencil[i].writemask = 0; 513 } 514 dsa.alpha.enabled = 0; 515 dsa.alpha.func = PIPE_FUNC_ALWAYS; 516 dsa.alpha.ref_value = 0; 517 dec->dsa = dec->pipe->create_depth_stencil_alpha_state(dec->pipe, &dsa); 518 dec->pipe->bind_depth_stencil_alpha_state(dec->pipe, dec->dsa); 519 520 return true; 521} 522 523static bool 524init_idct(struct vl_mpeg12_decoder *dec, unsigned buffer_width, unsigned buffer_height) 525{ 526 unsigned chroma_width, chroma_height, chroma_blocks_x, chroma_blocks_y; 527 struct pipe_sampler_view *idct_matrix; 528 529 if (!(idct_matrix = vl_idct_upload_matrix(dec->pipe, sqrt(SCALE_FACTOR_16_TO_9)))) 530 goto error_idct_matrix; 531 532 if (!vl_idct_init(&dec->idct_y, dec->pipe, buffer_width, buffer_height, 533 2, 2, idct_matrix)) 534 goto error_idct_y; 535 536 if (dec->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) { 537 chroma_width = buffer_width / 2; 538 chroma_height = buffer_height / 2; 539 chroma_blocks_x = 1; 540 chroma_blocks_y = 1; 541 } else if (dec->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) { 542 chroma_width = buffer_width; 543 chroma_height = buffer_height / 2; 544 chroma_blocks_x = 2; 545 chroma_blocks_y = 1; 546 } else { 547 chroma_width = buffer_width; 548 chroma_height = buffer_height; 549 chroma_blocks_x = 2; 550 chroma_blocks_y = 2; 551 } 552 553 if(!vl_idct_init(&dec->idct_c, dec->pipe, chroma_width, chroma_height, 554 chroma_blocks_x, chroma_blocks_y, idct_matrix)) 555 goto error_idct_c; 556 557 pipe_sampler_view_reference(&idct_matrix, NULL); 558 return true; 559 560error_idct_c: 561 vl_idct_cleanup(&dec->idct_y); 562 563error_idct_y: 564 pipe_sampler_view_reference(&idct_matrix, NULL); 565 566error_idct_matrix: 567 return false; 568} 569 570struct pipe_video_decoder * 571vl_create_mpeg12_decoder(struct pipe_video_context *context, 572 struct pipe_context *pipe, 573 enum pipe_video_profile profile, 574 enum pipe_video_entrypoint entrypoint, 575 enum pipe_video_chroma_format chroma_format, 576 unsigned width, unsigned height) 577{ 578 struct vl_mpeg12_decoder *dec; 579 unsigned i; 580 581 assert(u_reduce_video_profile(profile) == PIPE_VIDEO_CODEC_MPEG12); 582 583 dec = CALLOC_STRUCT(vl_mpeg12_decoder); 584 585 if (!dec) 586 return NULL; 587 588 dec->base.context = context; 589 dec->base.profile = profile; 590 dec->base.entrypoint = entrypoint; 591 dec->base.chroma_format = chroma_format; 592 dec->base.width = width; 593 dec->base.height = height; 594 595 dec->base.destroy = vl_mpeg12_destroy; 596 dec->base.create_buffer = vl_mpeg12_create_buffer; 597 dec->base.flush_buffer = vl_mpeg12_decoder_flush_buffer; 598 dec->base.clear_buffer = vl_mpeg12_decoder_clear_buffer; 599 600 dec->pipe = pipe; 601 602 dec->quads = vl_vb_upload_quads(dec->pipe, 2, 2); 603 for (i = 0; i < VL_MAX_PLANES; ++i) 604 dec->ves[i] = vl_vb_get_elems_state(dec->pipe, i); 605 606 dec->base.width = align(width, MACROBLOCK_WIDTH); 607 dec->base.height = align(height, MACROBLOCK_HEIGHT); 608 609 /* TODO: Implement 422, 444 */ 610 assert(dec->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420); 611 dec->empty_block_mask = &const_empty_block_mask_420; 612 613 if (entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) 614 if (!init_idct(dec, dec->base.width, dec->base.height)) 615 goto error_idct; 616 617 if (!vl_mpeg12_mc_renderer_init(&dec->mc, dec->pipe, dec->base.width, dec->base.height, 618 entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT ? 1.0f : SCALE_FACTOR_16_TO_9)) 619 goto error_mc; 620 621 if (!init_pipe_state(dec)) 622 goto error_pipe_state; 623 624 return &dec->base; 625 626error_pipe_state: 627 vl_mpeg12_mc_renderer_cleanup(&dec->mc); 628 629error_mc: 630 if (entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) { 631 vl_idct_cleanup(&dec->idct_y); 632 vl_idct_cleanup(&dec->idct_c); 633 } 634 635error_idct: 636 FREE(dec); 637 return NULL; 638} 639