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_sampler.h"
34 #include "util/u_video.h"
35
36 #include "vl_mpeg12_decoder.h"
37 #include "vl_defines.h"
38
39 #define SCALE_FACTOR_SNORM (32768.0f / 256.0f)
40 #define SCALE_FACTOR_SSCALED (1.0f / 256.0f)
41
42 struct format_config {
43 enum pipe_format zscan_source_format;
44 enum pipe_format idct_source_format;
45 enum pipe_format mc_source_format;
46
47 float idct_scale;
48 float mc_scale;
49 };
50
51 static const struct format_config bitstream_format_config[] = {
52 // { PIPE_FORMAT_R16_SSCALED, PIPE_FORMAT_R16G16B16A16_SSCALED, PIPE_FORMAT_R16G16B16A16_FLOAT, 1.0f, SCALE_FACTOR_SSCALED },
53 // { PIPE_FORMAT_R16_SSCALED, PIPE_FORMAT_R16G16B16A16_SSCALED, PIPE_FORMAT_R16G16B16A16_SSCALED, 1.0f, SCALE_FACTOR_SSCALED },
54 { PIPE_FORMAT_R16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R16G16B16A16_FLOAT, 1.0f, SCALE_FACTOR_SNORM },
55 { PIPE_FORMAT_R16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM, 1.0f, SCALE_FACTOR_SNORM }
56 };
57
58 static const unsigned num_bitstream_format_configs =
59 sizeof(bitstream_format_config) / sizeof(struct format_config);
60
61 static const struct format_config idct_format_config[] = {
62 // { PIPE_FORMAT_R16_SSCALED, PIPE_FORMAT_R16G16B16A16_SSCALED, PIPE_FORMAT_R16G16B16A16_FLOAT, 1.0f, SCALE_FACTOR_SSCALED },
63 // { PIPE_FORMAT_R16_SSCALED, PIPE_FORMAT_R16G16B16A16_SSCALED, PIPE_FORMAT_R16G16B16A16_SSCALED, 1.0f, SCALE_FACTOR_SSCALED },
64 { PIPE_FORMAT_R16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R16G16B16A16_FLOAT, 1.0f, SCALE_FACTOR_SNORM },
65 { PIPE_FORMAT_R16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM, 1.0f, SCALE_FACTOR_SNORM }
66 };
67
68 static const unsigned num_idct_format_configs =
69 sizeof(idct_format_config) / sizeof(struct format_config);
70
71 static const struct format_config mc_format_config[] = {
72 //{ PIPE_FORMAT_R16_SSCALED, PIPE_FORMAT_NONE, PIPE_FORMAT_R16_SSCALED, 0.0f, SCALE_FACTOR_SSCALED },
73 { PIPE_FORMAT_R16_SNORM, PIPE_FORMAT_NONE, PIPE_FORMAT_R16_SNORM, 0.0f, SCALE_FACTOR_SNORM }
74 };
75
76 static const unsigned num_mc_format_configs =
77 sizeof(mc_format_config) / sizeof(struct format_config);
78
79 static const unsigned const_empty_block_mask_420[3][2][2] = {
80 { { 0x20, 0x10 }, { 0x08, 0x04 } },
81 { { 0x02, 0x02 }, { 0x02, 0x02 } },
82 { { 0x01, 0x01 }, { 0x01, 0x01 } }
83 };
84
85 static bool
init_zscan_buffer(struct vl_mpeg12_decoder * dec,struct vl_mpeg12_buffer * buffer)86 init_zscan_buffer(struct vl_mpeg12_decoder *dec, struct vl_mpeg12_buffer *buffer)
87 {
88 struct pipe_resource *res, res_tmpl;
89 struct pipe_sampler_view sv_tmpl;
90 struct pipe_surface **destination;
91
92 unsigned i;
93
94 assert(dec && buffer);
95
96 memset(&res_tmpl, 0, sizeof(res_tmpl));
97 res_tmpl.target = PIPE_TEXTURE_2D;
98 res_tmpl.format = dec->zscan_source_format;
99 res_tmpl.width0 = dec->blocks_per_line * VL_BLOCK_WIDTH * VL_BLOCK_HEIGHT;
100 res_tmpl.height0 = align(dec->num_blocks, dec->blocks_per_line) / dec->blocks_per_line;
101 res_tmpl.depth0 = 1;
102 res_tmpl.array_size = 1;
103 res_tmpl.usage = PIPE_USAGE_STREAM;
104 res_tmpl.bind = PIPE_BIND_SAMPLER_VIEW;
105
106 res = dec->base.context->screen->resource_create(dec->base.context->screen, &res_tmpl);
107 if (!res)
108 goto error_source;
109
110
111 memset(&sv_tmpl, 0, sizeof(sv_tmpl));
112 u_sampler_view_default_template(&sv_tmpl, res, res->format);
113 sv_tmpl.swizzle_r = sv_tmpl.swizzle_g = sv_tmpl.swizzle_b = sv_tmpl.swizzle_a = PIPE_SWIZZLE_RED;
114 buffer->zscan_source = dec->base.context->create_sampler_view(dec->base.context, res, &sv_tmpl);
115 pipe_resource_reference(&res, NULL);
116 if (!buffer->zscan_source)
117 goto error_sampler;
118
119 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT)
120 destination = dec->idct_source->get_surfaces(dec->idct_source);
121 else
122 destination = dec->mc_source->get_surfaces(dec->mc_source);
123
124 if (!destination)
125 goto error_surface;
126
127 for (i = 0; i < VL_NUM_COMPONENTS; ++i)
128 if (!vl_zscan_init_buffer(i == 0 ? &dec->zscan_y : &dec->zscan_c,
129 &buffer->zscan[i], buffer->zscan_source, destination[i]))
130 goto error_plane;
131
132 return true;
133
134 error_plane:
135 for (; i > 0; --i)
136 vl_zscan_cleanup_buffer(&buffer->zscan[i - 1]);
137
138 error_surface:
139 error_sampler:
140 pipe_sampler_view_reference(&buffer->zscan_source, NULL);
141
142 error_source:
143 return false;
144 }
145
146 static void
cleanup_zscan_buffer(struct vl_mpeg12_buffer * buffer)147 cleanup_zscan_buffer(struct vl_mpeg12_buffer *buffer)
148 {
149 unsigned i;
150
151 assert(buffer);
152
153 for (i = 0; i < VL_NUM_COMPONENTS; ++i)
154 vl_zscan_cleanup_buffer(&buffer->zscan[i]);
155
156 pipe_sampler_view_reference(&buffer->zscan_source, NULL);
157 }
158
159 static bool
init_idct_buffer(struct vl_mpeg12_decoder * dec,struct vl_mpeg12_buffer * buffer)160 init_idct_buffer(struct vl_mpeg12_decoder *dec, struct vl_mpeg12_buffer *buffer)
161 {
162 struct pipe_sampler_view **idct_source_sv, **mc_source_sv;
163
164 unsigned i;
165
166 assert(dec && buffer);
167
168 idct_source_sv = dec->idct_source->get_sampler_view_planes(dec->idct_source);
169 if (!idct_source_sv)
170 goto error_source_sv;
171
172 mc_source_sv = dec->mc_source->get_sampler_view_planes(dec->mc_source);
173 if (!mc_source_sv)
174 goto error_mc_source_sv;
175
176 for (i = 0; i < 3; ++i)
177 if (!vl_idct_init_buffer(i == 0 ? &dec->idct_y : &dec->idct_c,
178 &buffer->idct[i], idct_source_sv[i],
179 mc_source_sv[i]))
180 goto error_plane;
181
182 return true;
183
184 error_plane:
185 for (; i > 0; --i)
186 vl_idct_cleanup_buffer(&buffer->idct[i - 1]);
187
188 error_mc_source_sv:
189 error_source_sv:
190 return false;
191 }
192
193 static void
cleanup_idct_buffer(struct vl_mpeg12_buffer * buf)194 cleanup_idct_buffer(struct vl_mpeg12_buffer *buf)
195 {
196 unsigned i;
197
198 assert(buf);
199
200 for (i = 0; i < 3; ++i)
201 vl_idct_cleanup_buffer(&buf->idct[0]);
202 }
203
204 static bool
init_mc_buffer(struct vl_mpeg12_decoder * dec,struct vl_mpeg12_buffer * buf)205 init_mc_buffer(struct vl_mpeg12_decoder *dec, struct vl_mpeg12_buffer *buf)
206 {
207 assert(dec && buf);
208
209 if(!vl_mc_init_buffer(&dec->mc_y, &buf->mc[0]))
210 goto error_mc_y;
211
212 if(!vl_mc_init_buffer(&dec->mc_c, &buf->mc[1]))
213 goto error_mc_cb;
214
215 if(!vl_mc_init_buffer(&dec->mc_c, &buf->mc[2]))
216 goto error_mc_cr;
217
218 return true;
219
220 error_mc_cr:
221 vl_mc_cleanup_buffer(&buf->mc[1]);
222
223 error_mc_cb:
224 vl_mc_cleanup_buffer(&buf->mc[0]);
225
226 error_mc_y:
227 return false;
228 }
229
230 static void
cleanup_mc_buffer(struct vl_mpeg12_buffer * buf)231 cleanup_mc_buffer(struct vl_mpeg12_buffer *buf)
232 {
233 unsigned i;
234
235 assert(buf);
236
237 for (i = 0; i < VL_NUM_COMPONENTS; ++i)
238 vl_mc_cleanup_buffer(&buf->mc[i]);
239 }
240
241 static INLINE void
MacroBlockTypeToPipeWeights(const struct pipe_mpeg12_macroblock * mb,unsigned weights[2])242 MacroBlockTypeToPipeWeights(const struct pipe_mpeg12_macroblock *mb, unsigned weights[2])
243 {
244 assert(mb);
245
246 switch (mb->macroblock_type & (PIPE_MPEG12_MB_TYPE_MOTION_FORWARD | PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD)) {
247 case PIPE_MPEG12_MB_TYPE_MOTION_FORWARD:
248 weights[0] = PIPE_VIDEO_MV_WEIGHT_MAX;
249 weights[1] = PIPE_VIDEO_MV_WEIGHT_MIN;
250 break;
251
252 case (PIPE_MPEG12_MB_TYPE_MOTION_FORWARD | PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD):
253 weights[0] = PIPE_VIDEO_MV_WEIGHT_HALF;
254 weights[1] = PIPE_VIDEO_MV_WEIGHT_HALF;
255 break;
256
257 case PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD:
258 weights[0] = PIPE_VIDEO_MV_WEIGHT_MIN;
259 weights[1] = PIPE_VIDEO_MV_WEIGHT_MAX;
260 break;
261
262 default:
263 if (mb->macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA) {
264 weights[0] = PIPE_VIDEO_MV_WEIGHT_MIN;
265 weights[1] = PIPE_VIDEO_MV_WEIGHT_MIN;
266 } else {
267 /* no motion vector, but also not intra mb ->
268 just copy the old frame content */
269 weights[0] = PIPE_VIDEO_MV_WEIGHT_MAX;
270 weights[1] = PIPE_VIDEO_MV_WEIGHT_MIN;
271 }
272 break;
273 }
274 }
275
276 static INLINE struct vl_motionvector
MotionVectorToPipe(const struct pipe_mpeg12_macroblock * mb,unsigned vector,unsigned field_select_mask,unsigned weight)277 MotionVectorToPipe(const struct pipe_mpeg12_macroblock *mb, unsigned vector,
278 unsigned field_select_mask, unsigned weight)
279 {
280 struct vl_motionvector mv;
281
282 assert(mb);
283
284 if (mb->macroblock_type & (PIPE_MPEG12_MB_TYPE_MOTION_FORWARD | PIPE_MPEG12_MB_TYPE_MOTION_BACKWARD)) {
285 switch (mb->macroblock_modes.bits.frame_motion_type) {
286 case PIPE_MPEG12_MO_TYPE_FRAME:
287 mv.top.x = mb->PMV[0][vector][0];
288 mv.top.y = mb->PMV[0][vector][1];
289 mv.top.field_select = PIPE_VIDEO_FRAME;
290 mv.top.weight = weight;
291
292 mv.bottom.x = mb->PMV[0][vector][0];
293 mv.bottom.y = mb->PMV[0][vector][1];
294 mv.bottom.weight = weight;
295 mv.bottom.field_select = PIPE_VIDEO_FRAME;
296 break;
297
298 case PIPE_MPEG12_MO_TYPE_FIELD:
299 mv.top.x = mb->PMV[0][vector][0];
300 mv.top.y = mb->PMV[0][vector][1];
301 mv.top.field_select = (mb->motion_vertical_field_select & field_select_mask) ?
302 PIPE_VIDEO_BOTTOM_FIELD : PIPE_VIDEO_TOP_FIELD;
303 mv.top.weight = weight;
304
305 mv.bottom.x = mb->PMV[1][vector][0];
306 mv.bottom.y = mb->PMV[1][vector][1];
307 mv.bottom.field_select = (mb->motion_vertical_field_select & (field_select_mask << 2)) ?
308 PIPE_VIDEO_BOTTOM_FIELD : PIPE_VIDEO_TOP_FIELD;
309 mv.bottom.weight = weight;
310 break;
311
312 default: // TODO: Support DUALPRIME and 16x8
313 break;
314 }
315 } else {
316 mv.top.x = mv.top.y = 0;
317 mv.top.field_select = PIPE_VIDEO_FRAME;
318 mv.top.weight = weight;
319
320 mv.bottom.x = mv.bottom.y = 0;
321 mv.bottom.field_select = PIPE_VIDEO_FRAME;
322 mv.bottom.weight = weight;
323 }
324 return mv;
325 }
326
327 static INLINE void
UploadYcbcrBlocks(struct vl_mpeg12_decoder * dec,struct vl_mpeg12_buffer * buf,const struct pipe_mpeg12_macroblock * mb)328 UploadYcbcrBlocks(struct vl_mpeg12_decoder *dec,
329 struct vl_mpeg12_buffer *buf,
330 const struct pipe_mpeg12_macroblock *mb)
331 {
332 unsigned intra;
333 unsigned tb, x, y, num_blocks = 0;
334
335 assert(dec && buf);
336 assert(mb);
337
338 if (!mb->coded_block_pattern)
339 return;
340
341 intra = mb->macroblock_type & PIPE_MPEG12_MB_TYPE_INTRA ? 1 : 0;
342
343 for (y = 0; y < 2; ++y) {
344 for (x = 0; x < 2; ++x) {
345 if (mb->coded_block_pattern & const_empty_block_mask_420[0][y][x]) {
346
347 struct vl_ycbcr_block *stream = buf->ycbcr_stream[0];
348 stream->x = mb->x * 2 + x;
349 stream->y = mb->y * 2 + y;
350 stream->intra = intra;
351 stream->coding = mb->macroblock_modes.bits.dct_type;
352 stream->block_num = buf->block_num++;
353
354 buf->num_ycbcr_blocks[0]++;
355 buf->ycbcr_stream[0]++;
356
357 num_blocks++;
358 }
359 }
360 }
361
362 /* TODO: Implement 422, 444 */
363 //assert(ctx->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420);
364
365 for (tb = 1; tb < 3; ++tb) {
366 if (mb->coded_block_pattern & const_empty_block_mask_420[tb][0][0]) {
367
368 struct vl_ycbcr_block *stream = buf->ycbcr_stream[tb];
369 stream->x = mb->x;
370 stream->y = mb->y;
371 stream->intra = intra;
372 stream->coding = 0;
373 stream->block_num = buf->block_num++;
374
375 buf->num_ycbcr_blocks[tb]++;
376 buf->ycbcr_stream[tb]++;
377
378 num_blocks++;
379 }
380 }
381
382 memcpy(buf->texels, mb->blocks, 64 * sizeof(short) * num_blocks);
383 buf->texels += 64 * num_blocks;
384 }
385
386 static void
vl_mpeg12_destroy_buffer(void * buffer)387 vl_mpeg12_destroy_buffer(void *buffer)
388 {
389 struct vl_mpeg12_buffer *buf = buffer;
390
391 assert(buf);
392
393 cleanup_zscan_buffer(buf);
394 cleanup_idct_buffer(buf);
395 cleanup_mc_buffer(buf);
396 vl_vb_cleanup(&buf->vertex_stream);
397
398 FREE(buf);
399 }
400
401 static void
vl_mpeg12_destroy(struct pipe_video_decoder * decoder)402 vl_mpeg12_destroy(struct pipe_video_decoder *decoder)
403 {
404 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder*)decoder;
405 unsigned i;
406
407 assert(decoder);
408
409 /* Asserted in softpipe_delete_fs_state() for some reason */
410 dec->base.context->bind_vs_state(dec->base.context, NULL);
411 dec->base.context->bind_fs_state(dec->base.context, NULL);
412
413 dec->base.context->delete_depth_stencil_alpha_state(dec->base.context, dec->dsa);
414 dec->base.context->delete_sampler_state(dec->base.context, dec->sampler_ycbcr);
415
416 vl_mc_cleanup(&dec->mc_y);
417 vl_mc_cleanup(&dec->mc_c);
418 dec->mc_source->destroy(dec->mc_source);
419
420 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) {
421 vl_idct_cleanup(&dec->idct_y);
422 vl_idct_cleanup(&dec->idct_c);
423 dec->idct_source->destroy(dec->idct_source);
424 }
425
426 vl_zscan_cleanup(&dec->zscan_y);
427 vl_zscan_cleanup(&dec->zscan_c);
428
429 dec->base.context->delete_vertex_elements_state(dec->base.context, dec->ves_ycbcr);
430 dec->base.context->delete_vertex_elements_state(dec->base.context, dec->ves_mv);
431
432 pipe_resource_reference(&dec->quads.buffer, NULL);
433 pipe_resource_reference(&dec->pos.buffer, NULL);
434
435 pipe_sampler_view_reference(&dec->zscan_linear, NULL);
436 pipe_sampler_view_reference(&dec->zscan_normal, NULL);
437 pipe_sampler_view_reference(&dec->zscan_alternate, NULL);
438
439 for (i = 0; i < 4; ++i)
440 if (dec->dec_buffers[i])
441 vl_mpeg12_destroy_buffer(dec->dec_buffers[i]);
442
443 FREE(dec);
444 }
445
446 static struct vl_mpeg12_buffer *
vl_mpeg12_get_decode_buffer(struct vl_mpeg12_decoder * dec,struct pipe_video_buffer * target)447 vl_mpeg12_get_decode_buffer(struct vl_mpeg12_decoder *dec, struct pipe_video_buffer *target)
448 {
449 struct vl_mpeg12_buffer *buffer;
450
451 assert(dec);
452
453 buffer = vl_video_buffer_get_associated_data(target, &dec->base);
454 if (buffer)
455 return buffer;
456
457 buffer = dec->dec_buffers[dec->current_buffer];
458 if (buffer)
459 return buffer;
460
461 buffer = CALLOC_STRUCT(vl_mpeg12_buffer);
462 if (buffer == NULL)
463 return NULL;
464
465 if (!vl_vb_init(&buffer->vertex_stream, dec->base.context,
466 dec->base.width / VL_MACROBLOCK_WIDTH,
467 dec->base.height / VL_MACROBLOCK_HEIGHT))
468 goto error_vertex_buffer;
469
470 if (!init_mc_buffer(dec, buffer))
471 goto error_mc;
472
473 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT)
474 if (!init_idct_buffer(dec, buffer))
475 goto error_idct;
476
477 if (!init_zscan_buffer(dec, buffer))
478 goto error_zscan;
479
480 if (dec->base.entrypoint == PIPE_VIDEO_ENTRYPOINT_BITSTREAM)
481 vl_mpg12_bs_init(&buffer->bs, &dec->base);
482
483 if (dec->expect_chunked_decode)
484 vl_video_buffer_set_associated_data(target, &dec->base,
485 buffer, vl_mpeg12_destroy_buffer);
486 else
487 dec->dec_buffers[dec->current_buffer] = buffer;
488
489 return buffer;
490
491 error_zscan:
492 cleanup_idct_buffer(buffer);
493
494 error_idct:
495 cleanup_mc_buffer(buffer);
496
497 error_mc:
498 vl_vb_cleanup(&buffer->vertex_stream);
499
500 error_vertex_buffer:
501 FREE(buffer);
502 return NULL;
503 }
504
505 static void
vl_mpeg12_begin_frame(struct pipe_video_decoder * decoder,struct pipe_video_buffer * target,struct pipe_picture_desc * picture)506 vl_mpeg12_begin_frame(struct pipe_video_decoder *decoder,
507 struct pipe_video_buffer *target,
508 struct pipe_picture_desc *picture)
509 {
510 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder *)decoder;
511 struct pipe_mpeg12_picture_desc *desc = (struct pipe_mpeg12_picture_desc *)picture;
512 struct vl_mpeg12_buffer *buf;
513
514 struct pipe_resource *tex;
515 struct pipe_box rect = { 0, 0, 0, 1, 1, 1 };
516
517 uint8_t intra_matrix[64];
518 uint8_t non_intra_matrix[64];
519
520 unsigned i;
521
522 assert(dec && target && picture);
523
524 buf = vl_mpeg12_get_decode_buffer(dec, target);
525 assert(buf);
526
527 if (dec->base.entrypoint == PIPE_VIDEO_ENTRYPOINT_BITSTREAM) {
528 memcpy(intra_matrix, desc->intra_matrix, sizeof(intra_matrix));
529 memcpy(non_intra_matrix, desc->non_intra_matrix, sizeof(non_intra_matrix));
530 intra_matrix[0] = 1 << (7 - desc->intra_dc_precision);
531 } else {
532 memset(intra_matrix, 0x10, sizeof(intra_matrix));
533 memset(non_intra_matrix, 0x10, sizeof(non_intra_matrix));
534 }
535
536 for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
537 struct vl_zscan *zscan = i == 0 ? &dec->zscan_y : &dec->zscan_c;
538 vl_zscan_upload_quant(zscan, &buf->zscan[i], intra_matrix, true);
539 vl_zscan_upload_quant(zscan, &buf->zscan[i], non_intra_matrix, false);
540 }
541
542 vl_vb_map(&buf->vertex_stream, dec->base.context);
543
544 tex = buf->zscan_source->texture;
545 rect.width = tex->width0;
546 rect.height = tex->height0;
547
548 buf->tex_transfer = dec->base.context->get_transfer
549 (
550 dec->base.context, tex,
551 0, PIPE_TRANSFER_WRITE | PIPE_TRANSFER_DISCARD_RANGE,
552 &rect
553 );
554
555 buf->block_num = 0;
556 buf->texels = dec->base.context->transfer_map(dec->base.context, buf->tex_transfer);
557
558 for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
559 buf->ycbcr_stream[i] = vl_vb_get_ycbcr_stream(&buf->vertex_stream, i);
560 buf->num_ycbcr_blocks[i] = 0;
561 }
562
563 for (i = 0; i < VL_MAX_REF_FRAMES; ++i)
564 buf->mv_stream[i] = vl_vb_get_mv_stream(&buf->vertex_stream, i);
565
566 if (dec->base.entrypoint >= PIPE_VIDEO_ENTRYPOINT_IDCT) {
567 for (i = 0; i < VL_NUM_COMPONENTS; ++i)
568 vl_zscan_set_layout(&buf->zscan[i], dec->zscan_linear);
569 }
570 }
571
572 static void
vl_mpeg12_decode_macroblock(struct pipe_video_decoder * decoder,struct pipe_video_buffer * target,struct pipe_picture_desc * picture,const struct pipe_macroblock * macroblocks,unsigned num_macroblocks)573 vl_mpeg12_decode_macroblock(struct pipe_video_decoder *decoder,
574 struct pipe_video_buffer *target,
575 struct pipe_picture_desc *picture,
576 const struct pipe_macroblock *macroblocks,
577 unsigned num_macroblocks)
578 {
579 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder *)decoder;
580 const struct pipe_mpeg12_macroblock *mb = (const struct pipe_mpeg12_macroblock *)macroblocks;
581 struct pipe_mpeg12_picture_desc *desc = (struct pipe_mpeg12_picture_desc *)picture;
582 struct vl_mpeg12_buffer *buf;
583
584 unsigned i, j, mv_weights[2];
585
586 assert(dec && target && picture);
587 assert(macroblocks && macroblocks->codec == PIPE_VIDEO_CODEC_MPEG12);
588
589 buf = vl_mpeg12_get_decode_buffer(dec, target);
590 assert(buf);
591
592 for (; num_macroblocks > 0; --num_macroblocks) {
593 unsigned mb_addr = mb->y * dec->width_in_macroblocks + mb->x;
594
595 if (mb->macroblock_type & (PIPE_MPEG12_MB_TYPE_PATTERN | PIPE_MPEG12_MB_TYPE_INTRA))
596 UploadYcbcrBlocks(dec, buf, mb);
597
598 MacroBlockTypeToPipeWeights(mb, mv_weights);
599
600 for (i = 0; i < 2; ++i) {
601 if (!desc->ref[i]) continue;
602
603 buf->mv_stream[i][mb_addr] = MotionVectorToPipe
604 (
605 mb, i,
606 i ? PIPE_MPEG12_FS_FIRST_BACKWARD : PIPE_MPEG12_FS_FIRST_FORWARD,
607 mv_weights[i]
608 );
609 }
610
611 /* see section 7.6.6 of the spec */
612 if (mb->num_skipped_macroblocks > 0) {
613 struct vl_motionvector skipped_mv[2];
614
615 if (desc->ref[0] && !desc->ref[1]) {
616 skipped_mv[0].top.x = skipped_mv[0].top.y = 0;
617 skipped_mv[0].top.weight = PIPE_VIDEO_MV_WEIGHT_MAX;
618 } else {
619 skipped_mv[0] = buf->mv_stream[0][mb_addr];
620 skipped_mv[1] = buf->mv_stream[1][mb_addr];
621 }
622 skipped_mv[0].top.field_select = PIPE_VIDEO_FRAME;
623 skipped_mv[1].top.field_select = PIPE_VIDEO_FRAME;
624
625 skipped_mv[0].bottom = skipped_mv[0].top;
626 skipped_mv[1].bottom = skipped_mv[1].top;
627
628 ++mb_addr;
629 for (i = 0; i < mb->num_skipped_macroblocks; ++i, ++mb_addr) {
630 for (j = 0; j < 2; ++j) {
631 if (!desc->ref[j]) continue;
632 buf->mv_stream[j][mb_addr] = skipped_mv[j];
633
634 }
635 }
636 }
637
638 ++mb;
639 }
640 }
641
642 static void
vl_mpeg12_decode_bitstream(struct pipe_video_decoder * decoder,struct pipe_video_buffer * target,struct pipe_picture_desc * picture,unsigned num_buffers,const void * const * buffers,const unsigned * sizes)643 vl_mpeg12_decode_bitstream(struct pipe_video_decoder *decoder,
644 struct pipe_video_buffer *target,
645 struct pipe_picture_desc *picture,
646 unsigned num_buffers,
647 const void * const *buffers,
648 const unsigned *sizes)
649 {
650 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder *)decoder;
651 struct pipe_mpeg12_picture_desc *desc = (struct pipe_mpeg12_picture_desc *)picture;
652 struct vl_mpeg12_buffer *buf;
653
654 unsigned i;
655
656 assert(dec && target && picture);
657
658 buf = vl_mpeg12_get_decode_buffer(dec, target);
659 assert(buf);
660
661 for (i = 0; i < VL_NUM_COMPONENTS; ++i)
662 vl_zscan_set_layout(&buf->zscan[i], desc->alternate_scan ?
663 dec->zscan_alternate : dec->zscan_normal);
664
665 vl_mpg12_bs_decode(&buf->bs, target, desc, num_buffers, buffers, sizes);
666 }
667
668 static void
vl_mpeg12_end_frame(struct pipe_video_decoder * decoder,struct pipe_video_buffer * target,struct pipe_picture_desc * picture)669 vl_mpeg12_end_frame(struct pipe_video_decoder *decoder,
670 struct pipe_video_buffer *target,
671 struct pipe_picture_desc *picture)
672 {
673 struct vl_mpeg12_decoder *dec = (struct vl_mpeg12_decoder *)decoder;
674 struct pipe_mpeg12_picture_desc *desc = (struct pipe_mpeg12_picture_desc *)picture;
675 struct pipe_sampler_view **ref_frames[2];
676 struct pipe_sampler_view **mc_source_sv;
677 struct pipe_surface **target_surfaces;
678 struct pipe_vertex_buffer vb[3];
679 struct vl_mpeg12_buffer *buf;
680
681 const unsigned *plane_order;
682 unsigned i, j, component;
683 unsigned nr_components;
684
685 assert(dec && target && picture);
686 assert(!target->interlaced);
687
688 buf = vl_mpeg12_get_decode_buffer(dec, target);
689
690 vl_vb_unmap(&buf->vertex_stream, dec->base.context);
691
692 dec->base.context->transfer_unmap(dec->base.context, buf->tex_transfer);
693 dec->base.context->transfer_destroy(dec->base.context, buf->tex_transfer);
694
695 vb[0] = dec->quads;
696 vb[1] = dec->pos;
697
698 target_surfaces = target->get_surfaces(target);
699
700 for (i = 0; i < VL_MAX_REF_FRAMES; ++i) {
701 if (desc->ref[i])
702 ref_frames[i] = desc->ref[i]->get_sampler_view_planes(desc->ref[i]);
703 else
704 ref_frames[i] = NULL;
705 }
706
707 dec->base.context->bind_vertex_elements_state(dec->base.context, dec->ves_mv);
708 for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
709 if (!target_surfaces[i]) continue;
710
711 vl_mc_set_surface(&buf->mc[i], target_surfaces[i]);
712
713 for (j = 0; j < VL_MAX_REF_FRAMES; ++j) {
714 if (!ref_frames[j] || !ref_frames[j][i]) continue;
715
716 vb[2] = vl_vb_get_mv(&buf->vertex_stream, j);;
717 dec->base.context->set_vertex_buffers(dec->base.context, 3, vb);
718
719 vl_mc_render_ref(i ? &dec->mc_c : &dec->mc_y, &buf->mc[i], ref_frames[j][i]);
720 }
721 }
722
723 dec->base.context->bind_vertex_elements_state(dec->base.context, dec->ves_ycbcr);
724 for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
725 if (!buf->num_ycbcr_blocks[i]) continue;
726
727 vb[1] = vl_vb_get_ycbcr(&buf->vertex_stream, i);
728 dec->base.context->set_vertex_buffers(dec->base.context, 2, vb);
729
730 vl_zscan_render(i ? &dec->zscan_c : & dec->zscan_y, &buf->zscan[i] , buf->num_ycbcr_blocks[i]);
731
732 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT)
733 vl_idct_flush(i ? &dec->idct_c : &dec->idct_y, &buf->idct[i], buf->num_ycbcr_blocks[i]);
734 }
735
736 plane_order = vl_video_buffer_plane_order(target->buffer_format);
737 mc_source_sv = dec->mc_source->get_sampler_view_planes(dec->mc_source);
738 for (i = 0, component = 0; component < VL_NUM_COMPONENTS; ++i) {
739 if (!target_surfaces[i]) continue;
740
741 nr_components = util_format_get_nr_components(target_surfaces[i]->texture->format);
742 for (j = 0; j < nr_components; ++j, ++component) {
743 unsigned plane = plane_order[component];
744 if (!buf->num_ycbcr_blocks[plane]) continue;
745
746 vb[1] = vl_vb_get_ycbcr(&buf->vertex_stream, plane);
747 dec->base.context->set_vertex_buffers(dec->base.context, 2, vb);
748
749 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT)
750 vl_idct_prepare_stage2(i ? &dec->idct_c : &dec->idct_y, &buf->idct[plane]);
751 else {
752 dec->base.context->set_fragment_sampler_views(dec->base.context, 1, &mc_source_sv[plane]);
753 dec->base.context->bind_fragment_sampler_states(dec->base.context, 1, &dec->sampler_ycbcr);
754 }
755 vl_mc_render_ycbcr(i ? &dec->mc_c : &dec->mc_y, &buf->mc[i], j, buf->num_ycbcr_blocks[plane]);
756 }
757 }
758 ++dec->current_buffer;
759 dec->current_buffer %= 4;
760 }
761
762 static void
vl_mpeg12_flush(struct pipe_video_decoder * decoder)763 vl_mpeg12_flush(struct pipe_video_decoder *decoder)
764 {
765 assert(decoder);
766
767 //Noop, for shaders it is much faster to flush everything in end_frame
768 }
769
770 static bool
init_pipe_state(struct vl_mpeg12_decoder * dec)771 init_pipe_state(struct vl_mpeg12_decoder *dec)
772 {
773 struct pipe_depth_stencil_alpha_state dsa;
774 struct pipe_sampler_state sampler;
775 unsigned i;
776
777 assert(dec);
778
779 memset(&dsa, 0, sizeof dsa);
780 dsa.depth.enabled = 0;
781 dsa.depth.writemask = 0;
782 dsa.depth.func = PIPE_FUNC_ALWAYS;
783 for (i = 0; i < 2; ++i) {
784 dsa.stencil[i].enabled = 0;
785 dsa.stencil[i].func = PIPE_FUNC_ALWAYS;
786 dsa.stencil[i].fail_op = PIPE_STENCIL_OP_KEEP;
787 dsa.stencil[i].zpass_op = PIPE_STENCIL_OP_KEEP;
788 dsa.stencil[i].zfail_op = PIPE_STENCIL_OP_KEEP;
789 dsa.stencil[i].valuemask = 0;
790 dsa.stencil[i].writemask = 0;
791 }
792 dsa.alpha.enabled = 0;
793 dsa.alpha.func = PIPE_FUNC_ALWAYS;
794 dsa.alpha.ref_value = 0;
795 dec->dsa = dec->base.context->create_depth_stencil_alpha_state(dec->base.context, &dsa);
796 dec->base.context->bind_depth_stencil_alpha_state(dec->base.context, dec->dsa);
797
798 memset(&sampler, 0, sizeof(sampler));
799 sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
800 sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
801 sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_BORDER;
802 sampler.min_img_filter = PIPE_TEX_FILTER_NEAREST;
803 sampler.min_mip_filter = PIPE_TEX_MIPFILTER_NONE;
804 sampler.mag_img_filter = PIPE_TEX_FILTER_NEAREST;
805 sampler.compare_mode = PIPE_TEX_COMPARE_NONE;
806 sampler.compare_func = PIPE_FUNC_ALWAYS;
807 sampler.normalized_coords = 1;
808 dec->sampler_ycbcr = dec->base.context->create_sampler_state(dec->base.context, &sampler);
809 if (!dec->sampler_ycbcr)
810 return false;
811
812 return true;
813 }
814
815 static const struct format_config*
find_format_config(struct vl_mpeg12_decoder * dec,const struct format_config configs[],unsigned num_configs)816 find_format_config(struct vl_mpeg12_decoder *dec, const struct format_config configs[], unsigned num_configs)
817 {
818 struct pipe_screen *screen;
819 unsigned i;
820
821 assert(dec);
822
823 screen = dec->base.context->screen;
824
825 for (i = 0; i < num_configs; ++i) {
826 if (!screen->is_format_supported(screen, configs[i].zscan_source_format, PIPE_TEXTURE_2D,
827 1, PIPE_BIND_SAMPLER_VIEW))
828 continue;
829
830 if (configs[i].idct_source_format != PIPE_FORMAT_NONE) {
831 if (!screen->is_format_supported(screen, configs[i].idct_source_format, PIPE_TEXTURE_2D,
832 1, PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET))
833 continue;
834
835 if (!screen->is_format_supported(screen, configs[i].mc_source_format, PIPE_TEXTURE_3D,
836 1, PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET))
837 continue;
838 } else {
839 if (!screen->is_format_supported(screen, configs[i].mc_source_format, PIPE_TEXTURE_2D,
840 1, PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET))
841 continue;
842 }
843 return &configs[i];
844 }
845
846 return NULL;
847 }
848
849 static bool
init_zscan(struct vl_mpeg12_decoder * dec,const struct format_config * format_config)850 init_zscan(struct vl_mpeg12_decoder *dec, const struct format_config* format_config)
851 {
852 unsigned num_channels;
853
854 assert(dec);
855
856 dec->zscan_source_format = format_config->zscan_source_format;
857 dec->zscan_linear = vl_zscan_layout(dec->base.context, vl_zscan_linear, dec->blocks_per_line);
858 dec->zscan_normal = vl_zscan_layout(dec->base.context, vl_zscan_normal, dec->blocks_per_line);
859 dec->zscan_alternate = vl_zscan_layout(dec->base.context, vl_zscan_alternate, dec->blocks_per_line);
860
861 num_channels = dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT ? 4 : 1;
862
863 if (!vl_zscan_init(&dec->zscan_y, dec->base.context, dec->base.width, dec->base.height,
864 dec->blocks_per_line, dec->num_blocks, num_channels))
865 return false;
866
867 if (!vl_zscan_init(&dec->zscan_c, dec->base.context, dec->chroma_width, dec->chroma_height,
868 dec->blocks_per_line, dec->num_blocks, num_channels))
869 return false;
870
871 return true;
872 }
873
874 static bool
init_idct(struct vl_mpeg12_decoder * dec,const struct format_config * format_config)875 init_idct(struct vl_mpeg12_decoder *dec, const struct format_config* format_config)
876 {
877 unsigned nr_of_idct_render_targets, max_inst;
878 enum pipe_format formats[3];
879 struct pipe_video_buffer templat;
880
881 struct pipe_sampler_view *matrix = NULL;
882
883 nr_of_idct_render_targets = dec->base.context->screen->get_param
884 (
885 dec->base.context->screen, PIPE_CAP_MAX_RENDER_TARGETS
886 );
887
888 max_inst = dec->base.context->screen->get_shader_param
889 (
890 dec->base.context->screen, PIPE_SHADER_FRAGMENT, PIPE_SHADER_CAP_MAX_INSTRUCTIONS
891 );
892
893 // Just assume we need 32 inst per render target, not 100% true, but should work in most cases
894 if (nr_of_idct_render_targets >= 4 && max_inst >= 32*4)
895 // more than 4 render targets usually doesn't makes any seens
896 nr_of_idct_render_targets = 4;
897 else
898 nr_of_idct_render_targets = 1;
899
900 formats[0] = formats[1] = formats[2] = format_config->idct_source_format;
901 memset(&templat, 0, sizeof(templat));
902 templat.width = dec->base.width / 4;
903 templat.height = dec->base.height;
904 templat.chroma_format = dec->base.chroma_format;
905 dec->idct_source = vl_video_buffer_create_ex
906 (
907 dec->base.context, &templat,
908 formats, 1, PIPE_USAGE_STATIC
909 );
910
911 if (!dec->idct_source)
912 goto error_idct_source;
913
914 formats[0] = formats[1] = formats[2] = format_config->mc_source_format;
915 memset(&templat, 0, sizeof(templat));
916 templat.width = dec->base.width / nr_of_idct_render_targets;
917 templat.height = dec->base.height / 4;
918 templat.chroma_format = dec->base.chroma_format;
919 dec->mc_source = vl_video_buffer_create_ex
920 (
921 dec->base.context, &templat,
922 formats, nr_of_idct_render_targets, PIPE_USAGE_STATIC
923 );
924
925 if (!dec->mc_source)
926 goto error_mc_source;
927
928 if (!(matrix = vl_idct_upload_matrix(dec->base.context, format_config->idct_scale)))
929 goto error_matrix;
930
931 if (!vl_idct_init(&dec->idct_y, dec->base.context, dec->base.width, dec->base.height,
932 nr_of_idct_render_targets, matrix, matrix))
933 goto error_y;
934
935 if(!vl_idct_init(&dec->idct_c, dec->base.context, dec->chroma_width, dec->chroma_height,
936 nr_of_idct_render_targets, matrix, matrix))
937 goto error_c;
938
939 pipe_sampler_view_reference(&matrix, NULL);
940
941 return true;
942
943 error_c:
944 vl_idct_cleanup(&dec->idct_y);
945
946 error_y:
947 pipe_sampler_view_reference(&matrix, NULL);
948
949 error_matrix:
950 dec->mc_source->destroy(dec->mc_source);
951
952 error_mc_source:
953 dec->idct_source->destroy(dec->idct_source);
954
955 error_idct_source:
956 return false;
957 }
958
959 static bool
init_mc_source_widthout_idct(struct vl_mpeg12_decoder * dec,const struct format_config * format_config)960 init_mc_source_widthout_idct(struct vl_mpeg12_decoder *dec, const struct format_config* format_config)
961 {
962 enum pipe_format formats[3];
963 struct pipe_video_buffer templat;
964
965 formats[0] = formats[1] = formats[2] = format_config->mc_source_format;
966 memset(&templat, 0, sizeof(templat));
967 templat.width = dec->base.width;
968 templat.height = dec->base.height;
969 templat.chroma_format = dec->base.chroma_format;
970 dec->mc_source = vl_video_buffer_create_ex
971 (
972 dec->base.context, &templat,
973 formats, 1, PIPE_USAGE_STATIC
974 );
975
976 return dec->mc_source != NULL;
977 }
978
979 static void
mc_vert_shader_callback(void * priv,struct vl_mc * mc,struct ureg_program * shader,unsigned first_output,struct ureg_dst tex)980 mc_vert_shader_callback(void *priv, struct vl_mc *mc,
981 struct ureg_program *shader,
982 unsigned first_output,
983 struct ureg_dst tex)
984 {
985 struct vl_mpeg12_decoder *dec = priv;
986 struct ureg_dst o_vtex;
987
988 assert(priv && mc);
989 assert(shader);
990
991 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) {
992 struct vl_idct *idct = mc == &dec->mc_y ? &dec->idct_y : &dec->idct_c;
993 vl_idct_stage2_vert_shader(idct, shader, first_output, tex);
994 } else {
995 o_vtex = ureg_DECL_output(shader, TGSI_SEMANTIC_GENERIC, first_output);
996 ureg_MOV(shader, ureg_writemask(o_vtex, TGSI_WRITEMASK_XY), ureg_src(tex));
997 }
998 }
999
1000 static void
mc_frag_shader_callback(void * priv,struct vl_mc * mc,struct ureg_program * shader,unsigned first_input,struct ureg_dst dst)1001 mc_frag_shader_callback(void *priv, struct vl_mc *mc,
1002 struct ureg_program *shader,
1003 unsigned first_input,
1004 struct ureg_dst dst)
1005 {
1006 struct vl_mpeg12_decoder *dec = priv;
1007 struct ureg_src src, sampler;
1008
1009 assert(priv && mc);
1010 assert(shader);
1011
1012 if (dec->base.entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) {
1013 struct vl_idct *idct = mc == &dec->mc_y ? &dec->idct_y : &dec->idct_c;
1014 vl_idct_stage2_frag_shader(idct, shader, first_input, dst);
1015 } else {
1016 src = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, first_input, TGSI_INTERPOLATE_LINEAR);
1017 sampler = ureg_DECL_sampler(shader, 0);
1018 ureg_TEX(shader, dst, TGSI_TEXTURE_2D, src, sampler);
1019 }
1020 }
1021
1022 struct pipe_video_decoder *
vl_create_mpeg12_decoder(struct pipe_context * context,enum pipe_video_profile profile,enum pipe_video_entrypoint entrypoint,enum pipe_video_chroma_format chroma_format,unsigned width,unsigned height,unsigned max_references,bool expect_chunked_decode)1023 vl_create_mpeg12_decoder(struct pipe_context *context,
1024 enum pipe_video_profile profile,
1025 enum pipe_video_entrypoint entrypoint,
1026 enum pipe_video_chroma_format chroma_format,
1027 unsigned width, unsigned height, unsigned max_references,
1028 bool expect_chunked_decode)
1029 {
1030 const unsigned block_size_pixels = VL_BLOCK_WIDTH * VL_BLOCK_HEIGHT;
1031 const struct format_config *format_config;
1032 struct vl_mpeg12_decoder *dec;
1033
1034 assert(u_reduce_video_profile(profile) == PIPE_VIDEO_CODEC_MPEG12);
1035
1036 dec = CALLOC_STRUCT(vl_mpeg12_decoder);
1037
1038 if (!dec)
1039 return NULL;
1040
1041 dec->base.context = context;
1042 dec->base.profile = profile;
1043 dec->base.entrypoint = entrypoint;
1044 dec->base.chroma_format = chroma_format;
1045 dec->base.width = width;
1046 dec->base.height = height;
1047 dec->base.max_references = max_references;
1048
1049 dec->base.destroy = vl_mpeg12_destroy;
1050 dec->base.begin_frame = vl_mpeg12_begin_frame;
1051 dec->base.decode_macroblock = vl_mpeg12_decode_macroblock;
1052 dec->base.decode_bitstream = vl_mpeg12_decode_bitstream;
1053 dec->base.end_frame = vl_mpeg12_end_frame;
1054 dec->base.flush = vl_mpeg12_flush;
1055
1056 dec->blocks_per_line = MAX2(util_next_power_of_two(dec->base.width) / block_size_pixels, 4);
1057 dec->num_blocks = (dec->base.width * dec->base.height) / block_size_pixels;
1058 dec->width_in_macroblocks = align(dec->base.width, VL_MACROBLOCK_WIDTH) / VL_MACROBLOCK_WIDTH;
1059 dec->expect_chunked_decode = expect_chunked_decode;
1060
1061 /* TODO: Implement 422, 444 */
1062 assert(dec->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420);
1063
1064 if (dec->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
1065 dec->chroma_width = dec->base.width / 2;
1066 dec->chroma_height = dec->base.height / 2;
1067 dec->num_blocks = dec->num_blocks * 2;
1068 } else if (dec->base.chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
1069 dec->chroma_width = dec->base.width;
1070 dec->chroma_height = dec->base.height / 2;
1071 dec->num_blocks = dec->num_blocks * 2 + dec->num_blocks;
1072 } else {
1073 dec->chroma_width = dec->base.width;
1074 dec->chroma_height = dec->base.height;
1075 dec->num_blocks = dec->num_blocks * 3;
1076 }
1077
1078 dec->quads = vl_vb_upload_quads(dec->base.context);
1079 dec->pos = vl_vb_upload_pos(
1080 dec->base.context,
1081 dec->base.width / VL_MACROBLOCK_WIDTH,
1082 dec->base.height / VL_MACROBLOCK_HEIGHT
1083 );
1084
1085 dec->ves_ycbcr = vl_vb_get_ves_ycbcr(dec->base.context);
1086 dec->ves_mv = vl_vb_get_ves_mv(dec->base.context);
1087
1088 switch (entrypoint) {
1089 case PIPE_VIDEO_ENTRYPOINT_BITSTREAM:
1090 format_config = find_format_config(dec, bitstream_format_config, num_bitstream_format_configs);
1091 break;
1092
1093 case PIPE_VIDEO_ENTRYPOINT_IDCT:
1094 format_config = find_format_config(dec, idct_format_config, num_idct_format_configs);
1095 break;
1096
1097 case PIPE_VIDEO_ENTRYPOINT_MC:
1098 format_config = find_format_config(dec, mc_format_config, num_mc_format_configs);
1099 break;
1100
1101 default:
1102 assert(0);
1103 FREE(dec);
1104 return NULL;
1105 }
1106
1107 if (!format_config) {
1108 FREE(dec);
1109 return NULL;
1110 }
1111
1112 if (!init_zscan(dec, format_config))
1113 goto error_zscan;
1114
1115 if (entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) {
1116 if (!init_idct(dec, format_config))
1117 goto error_sources;
1118 } else {
1119 if (!init_mc_source_widthout_idct(dec, format_config))
1120 goto error_sources;
1121 }
1122
1123 if (!vl_mc_init(&dec->mc_y, dec->base.context, dec->base.width, dec->base.height,
1124 VL_MACROBLOCK_HEIGHT, format_config->mc_scale,
1125 mc_vert_shader_callback, mc_frag_shader_callback, dec))
1126 goto error_mc_y;
1127
1128 // TODO
1129 if (!vl_mc_init(&dec->mc_c, dec->base.context, dec->base.width, dec->base.height,
1130 VL_BLOCK_HEIGHT, format_config->mc_scale,
1131 mc_vert_shader_callback, mc_frag_shader_callback, dec))
1132 goto error_mc_c;
1133
1134 if (!init_pipe_state(dec))
1135 goto error_pipe_state;
1136
1137 return &dec->base;
1138
1139 error_pipe_state:
1140 vl_mc_cleanup(&dec->mc_c);
1141
1142 error_mc_c:
1143 vl_mc_cleanup(&dec->mc_y);
1144
1145 error_mc_y:
1146 if (entrypoint <= PIPE_VIDEO_ENTRYPOINT_IDCT) {
1147 vl_idct_cleanup(&dec->idct_y);
1148 vl_idct_cleanup(&dec->idct_c);
1149 dec->idct_source->destroy(dec->idct_source);
1150 }
1151 dec->mc_source->destroy(dec->mc_source);
1152
1153 error_sources:
1154 vl_zscan_cleanup(&dec->zscan_y);
1155 vl_zscan_cleanup(&dec->zscan_c);
1156
1157 error_zscan:
1158 FREE(dec);
1159 return NULL;
1160 }
1161