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