1/**************************************************************************
2 *
3 * Copyright 2011 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 VMWARE 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_screen.h"
31#include "pipe/p_context.h"
32#include "pipe/p_state.h"
33
34#include "util/u_format.h"
35#include "util/u_inlines.h"
36#include "util/u_sampler.h"
37#include "util/u_memory.h"
38
39#include "vl_video_buffer.h"
40
41const enum pipe_format const_resource_formats_YV12[3] = {
42   PIPE_FORMAT_R8_UNORM,
43   PIPE_FORMAT_R8_UNORM,
44   PIPE_FORMAT_R8_UNORM
45};
46
47const enum pipe_format const_resource_formats_NV12[3] = {
48   PIPE_FORMAT_R8_UNORM,
49   PIPE_FORMAT_R8G8_UNORM,
50   PIPE_FORMAT_NONE
51};
52
53const enum pipe_format const_resource_formats_YUVA[3] = {
54   PIPE_FORMAT_R8G8B8A8_UNORM,
55   PIPE_FORMAT_NONE,
56   PIPE_FORMAT_NONE
57};
58
59const enum pipe_format const_resource_formats_VUYA[3] = {
60   PIPE_FORMAT_B8G8R8A8_UNORM,
61   PIPE_FORMAT_NONE,
62   PIPE_FORMAT_NONE
63};
64
65const enum pipe_format const_resource_formats_YUVX[3] = {
66   PIPE_FORMAT_R8G8B8X8_UNORM,
67   PIPE_FORMAT_NONE,
68   PIPE_FORMAT_NONE
69};
70
71const enum pipe_format const_resource_formats_VUYX[3] = {
72   PIPE_FORMAT_B8G8R8X8_UNORM,
73   PIPE_FORMAT_NONE,
74   PIPE_FORMAT_NONE
75};
76
77const enum pipe_format const_resource_formats_YUYV[3] = {
78   PIPE_FORMAT_R8G8_R8B8_UNORM,
79   PIPE_FORMAT_NONE,
80   PIPE_FORMAT_NONE
81};
82
83const enum pipe_format const_resource_formats_UYVY[3] = {
84   PIPE_FORMAT_G8R8_B8R8_UNORM,
85   PIPE_FORMAT_NONE,
86   PIPE_FORMAT_NONE
87};
88
89const enum pipe_format const_resource_formats_P016[3] = {
90   PIPE_FORMAT_R16_UNORM,
91   PIPE_FORMAT_R16G16_UNORM,
92   PIPE_FORMAT_NONE
93};
94
95const unsigned const_resource_plane_order_YUV[3] = {
96   0,
97   1,
98   2
99};
100
101const unsigned const_resource_plane_order_YVU[3] = {
102   0,
103   2,
104   1
105};
106
107const enum pipe_format *
108vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format)
109{
110   switch(format) {
111   case PIPE_FORMAT_YV12:
112      return const_resource_formats_YV12;
113
114   case PIPE_FORMAT_NV12:
115      return const_resource_formats_NV12;
116
117   case PIPE_FORMAT_R8G8B8A8_UNORM:
118      return const_resource_formats_YUVA;
119
120   case PIPE_FORMAT_B8G8R8A8_UNORM:
121      return const_resource_formats_VUYA;
122
123   case PIPE_FORMAT_R8G8B8X8_UNORM:
124      return const_resource_formats_YUVX;
125
126   case PIPE_FORMAT_B8G8R8X8_UNORM:
127      return const_resource_formats_VUYX;
128
129   case PIPE_FORMAT_YUYV:
130      return const_resource_formats_YUYV;
131
132   case PIPE_FORMAT_UYVY:
133      return const_resource_formats_UYVY;
134
135   case PIPE_FORMAT_P016:
136      return const_resource_formats_P016;
137
138   default:
139      return NULL;
140   }
141}
142
143const unsigned *
144vl_video_buffer_plane_order(enum pipe_format format)
145{
146   switch(format) {
147   case PIPE_FORMAT_YV12:
148      return const_resource_plane_order_YVU;
149
150   case PIPE_FORMAT_NV12:
151   case PIPE_FORMAT_R8G8B8A8_UNORM:
152   case PIPE_FORMAT_B8G8R8A8_UNORM:
153   case PIPE_FORMAT_YUYV:
154   case PIPE_FORMAT_UYVY:
155   case PIPE_FORMAT_P016:
156      return const_resource_plane_order_YUV;
157
158   default:
159      return NULL;
160   }
161}
162
163static enum pipe_format
164vl_video_buffer_surface_format(enum pipe_format format)
165{
166   const struct util_format_description *desc = util_format_description(format);
167
168   /* a subsampled formats can't work as surface use RGBA instead */
169   if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED)
170      return PIPE_FORMAT_R8G8B8A8_UNORM;
171
172   return format;
173}
174
175boolean
176vl_video_buffer_is_format_supported(struct pipe_screen *screen,
177                                    enum pipe_format format,
178                                    enum pipe_video_profile profile,
179                                    enum pipe_video_entrypoint entrypoint)
180{
181   const enum pipe_format *resource_formats;
182   unsigned i;
183
184   resource_formats = vl_video_buffer_formats(screen, format);
185   if (!resource_formats)
186      return false;
187
188   for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
189      enum pipe_format format = resource_formats[i];
190
191      if (format == PIPE_FORMAT_NONE)
192         continue;
193
194      /* we at least need to sample from it */
195      if (!screen->is_format_supported(screen, format, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_SAMPLER_VIEW))
196         return false;
197
198      format = vl_video_buffer_surface_format(format);
199      if (!screen->is_format_supported(screen, format, PIPE_TEXTURE_2D, 0, 0, PIPE_BIND_RENDER_TARGET))
200         return false;
201   }
202
203   return true;
204}
205
206unsigned
207vl_video_buffer_max_size(struct pipe_screen *screen)
208{
209   uint32_t max_2d_texture_level;
210
211   max_2d_texture_level = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
212
213   return 1 << (max_2d_texture_level-1);
214}
215
216void
217vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
218                                    struct pipe_video_codec *vcodec,
219                                    void *associated_data,
220                                    void (*destroy_associated_data)(void *))
221{
222   vbuf->codec = vcodec;
223
224   if (vbuf->associated_data == associated_data)
225      return;
226
227   if (vbuf->associated_data)
228      vbuf->destroy_associated_data(vbuf->associated_data);
229
230   vbuf->associated_data = associated_data;
231   vbuf->destroy_associated_data = destroy_associated_data;
232}
233
234void *
235vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
236                                    struct pipe_video_codec *vcodec)
237{
238   if (vbuf->codec == vcodec)
239      return vbuf->associated_data;
240   else
241      return NULL;
242}
243
244void
245vl_video_buffer_template(struct pipe_resource *templ,
246                         const struct pipe_video_buffer *tmpl,
247                         enum pipe_format resource_format,
248                         unsigned depth, unsigned array_size,
249                         unsigned usage, unsigned plane)
250{
251   unsigned height = tmpl->height;
252
253   memset(templ, 0, sizeof(*templ));
254   if (depth > 1)
255      templ->target = PIPE_TEXTURE_3D;
256   else if (array_size > 1)
257      templ->target = PIPE_TEXTURE_2D_ARRAY;
258   else
259      templ->target = PIPE_TEXTURE_2D;
260   templ->format = resource_format;
261   templ->width0 = tmpl->width;
262   templ->depth0 = depth;
263   templ->array_size = array_size;
264   templ->bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET | tmpl->bind;
265   templ->usage = usage;
266
267   vl_video_buffer_adjust_size(&templ->width0, &height, plane,
268                               tmpl->chroma_format, false);
269   templ->height0 = height;
270}
271
272static void
273vl_video_buffer_destroy(struct pipe_video_buffer *buffer)
274{
275   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
276   unsigned i;
277
278   assert(buf);
279
280   for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
281      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
282      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
283      pipe_resource_reference(&buf->resources[i], NULL);
284   }
285
286   for (i = 0; i < VL_MAX_SURFACES; ++i)
287      pipe_surface_reference(&buf->surfaces[i], NULL);
288
289   vl_video_buffer_set_associated_data(buffer, NULL, NULL, NULL);
290
291   FREE(buffer);
292}
293
294static struct pipe_sampler_view **
295vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
296{
297   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
298   struct pipe_sampler_view sv_templ;
299   struct pipe_context *pipe;
300   unsigned i;
301
302   assert(buf);
303
304   pipe = buf->base.context;
305
306   for (i = 0; i < buf->num_planes; ++i ) {
307      if (!buf->sampler_view_planes[i]) {
308         memset(&sv_templ, 0, sizeof(sv_templ));
309         u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
310
311         if (util_format_get_nr_components(buf->resources[i]->format) == 1)
312            sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_X;
313
314         buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
315         if (!buf->sampler_view_planes[i])
316            goto error;
317      }
318   }
319
320   return buf->sampler_view_planes;
321
322error:
323   for (i = 0; i < buf->num_planes; ++i )
324      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
325
326   return NULL;
327}
328
329static struct pipe_sampler_view **
330vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
331{
332   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
333   struct pipe_sampler_view sv_templ;
334   struct pipe_context *pipe;
335   const enum pipe_format *sampler_format;
336   const unsigned *plane_order;
337   unsigned i, j, component;
338
339   assert(buf);
340
341   pipe = buf->base.context;
342
343   sampler_format = vl_video_buffer_formats(pipe->screen, buf->base.buffer_format);
344   plane_order = vl_video_buffer_plane_order(buf->base.buffer_format);
345
346   for (component = 0, i = 0; i < buf->num_planes; ++i ) {
347      struct pipe_resource *res = buf->resources[plane_order[i]];
348      const struct util_format_description *desc = util_format_description(res->format);
349      unsigned nr_components = util_format_get_nr_components(res->format);
350      if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED)
351         nr_components = 3;
352
353      for (j = 0; j < nr_components && component < VL_NUM_COMPONENTS; ++j, ++component) {
354         if (buf->sampler_view_components[component])
355            continue;
356
357         memset(&sv_templ, 0, sizeof(sv_templ));
358         u_sampler_view_default_template(&sv_templ, res, sampler_format[plane_order[i]]);
359         sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_X + j;
360         sv_templ.swizzle_a = PIPE_SWIZZLE_1;
361         buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, res, &sv_templ);
362         if (!buf->sampler_view_components[component])
363            goto error;
364      }
365   }
366   assert(component == VL_NUM_COMPONENTS);
367
368   return buf->sampler_view_components;
369
370error:
371   for (i = 0; i < VL_NUM_COMPONENTS; ++i )
372      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
373
374   return NULL;
375}
376
377static struct pipe_surface **
378vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
379{
380   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
381   struct pipe_surface surf_templ;
382   struct pipe_context *pipe;
383   unsigned i, j, array_size, surf;
384
385   assert(buf);
386
387   pipe = buf->base.context;
388
389   array_size = buffer->interlaced ? 2 : 1;
390   for (i = 0, surf = 0; i < VL_NUM_COMPONENTS; ++i) {
391      for (j = 0; j < array_size; ++j, ++surf) {
392         assert(surf < VL_MAX_SURFACES);
393
394         if (!buf->resources[i]) {
395            pipe_surface_reference(&buf->surfaces[surf], NULL);
396            continue;
397         }
398
399         if (!buf->surfaces[surf]) {
400            memset(&surf_templ, 0, sizeof(surf_templ));
401            surf_templ.format = vl_video_buffer_surface_format(buf->resources[i]->format);
402            surf_templ.u.tex.first_layer = surf_templ.u.tex.last_layer = j;
403            buf->surfaces[surf] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
404            if (!buf->surfaces[surf])
405               goto error;
406         }
407      }
408   }
409
410   return buf->surfaces;
411
412error:
413   for (i = 0; i < VL_MAX_SURFACES; ++i )
414      pipe_surface_reference(&buf->surfaces[i], NULL);
415
416   return NULL;
417}
418
419struct pipe_video_buffer *
420vl_video_buffer_create(struct pipe_context *pipe,
421                       const struct pipe_video_buffer *tmpl)
422{
423   const enum pipe_format *resource_formats;
424   struct pipe_video_buffer templat, *result;
425   bool pot_buffers;
426
427   assert(pipe);
428   assert(tmpl->width > 0 && tmpl->height > 0);
429
430   pot_buffers = !pipe->screen->get_video_param
431   (
432      pipe->screen,
433      PIPE_VIDEO_PROFILE_UNKNOWN,
434      PIPE_VIDEO_ENTRYPOINT_UNKNOWN,
435      PIPE_VIDEO_CAP_NPOT_TEXTURES
436   );
437
438   resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
439   if (!resource_formats)
440      return NULL;
441
442   templat = *tmpl;
443   templat.width = pot_buffers ? util_next_power_of_two(tmpl->width)
444                 : align(tmpl->width, VL_MACROBLOCK_WIDTH);
445   templat.height = pot_buffers ? util_next_power_of_two(tmpl->height)
446                  : align(tmpl->height, VL_MACROBLOCK_HEIGHT);
447
448   if (tmpl->interlaced)
449      templat.height /= 2;
450
451   result = vl_video_buffer_create_ex
452   (
453      pipe, &templat, resource_formats,
454      1, tmpl->interlaced ? 2 : 1, PIPE_USAGE_DEFAULT
455   );
456
457
458   if (result && tmpl->interlaced)
459      result->height *= 2;
460
461   return result;
462}
463
464struct pipe_video_buffer *
465vl_video_buffer_create_ex(struct pipe_context *pipe,
466                          const struct pipe_video_buffer *tmpl,
467                          const enum pipe_format resource_formats[VL_NUM_COMPONENTS],
468                          unsigned depth, unsigned array_size, unsigned usage)
469{
470   struct pipe_resource res_tmpl;
471   struct pipe_resource *resources[VL_NUM_COMPONENTS];
472   unsigned i;
473
474   assert(pipe);
475
476   memset(resources, 0, sizeof resources);
477
478   vl_video_buffer_template(&res_tmpl, tmpl, resource_formats[0], depth, array_size, usage, 0);
479   resources[0] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
480   if (!resources[0])
481      goto error;
482
483   if (resource_formats[1] == PIPE_FORMAT_NONE) {
484      assert(resource_formats[2] == PIPE_FORMAT_NONE);
485      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
486   }
487
488   vl_video_buffer_template(&res_tmpl, tmpl, resource_formats[1], depth, array_size, usage, 1);
489   resources[1] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
490   if (!resources[1])
491      goto error;
492
493   if (resource_formats[2] == PIPE_FORMAT_NONE)
494      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
495
496   vl_video_buffer_template(&res_tmpl, tmpl, resource_formats[2], depth, array_size, usage, 2);
497   resources[2] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
498   if (!resources[2])
499      goto error;
500
501   return vl_video_buffer_create_ex2(pipe, tmpl, resources);
502
503error:
504   for (i = 0; i < VL_NUM_COMPONENTS; ++i)
505      pipe_resource_reference(&resources[i], NULL);
506
507   return NULL;
508}
509
510struct pipe_video_buffer *
511vl_video_buffer_create_ex2(struct pipe_context *pipe,
512                           const struct pipe_video_buffer *tmpl,
513                           struct pipe_resource *resources[VL_NUM_COMPONENTS])
514{
515   struct vl_video_buffer *buffer;
516   unsigned i;
517
518   buffer = CALLOC_STRUCT(vl_video_buffer);
519   if (!buffer)
520      return NULL;
521
522   buffer->base = *tmpl;
523   buffer->base.context = pipe;
524   buffer->base.destroy = vl_video_buffer_destroy;
525   buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
526   buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
527   buffer->base.get_surfaces = vl_video_buffer_surfaces;
528   buffer->num_planes = 0;
529
530   for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
531      buffer->resources[i] = resources[i];
532      if (resources[i])
533         buffer->num_planes++;
534   }
535
536   return &buffer->base;
537}
538