vl_video_buffer.c revision 455090c4c42cc7003594a750105980b125e140d4 
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 TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28#include <assert.h>
29
30#include "pipe/p_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 unsigned const_resource_plane_order_YUV[3] = {
54   0,
55   1,
56   2
57};
58
59const unsigned const_resource_plane_order_YVU[3] = {
60   0,
61   2,
62   1
63};
64
65const enum pipe_format *
66vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format)
67{
68   switch(format) {
69   case PIPE_FORMAT_YV12:
70      return const_resource_formats_YV12;
71
72   case PIPE_FORMAT_NV12:
73      return const_resource_formats_NV12;
74
75   default:
76      return NULL;
77   }
78}
79
80const unsigned *
81vl_video_buffer_plane_order(enum pipe_format format)
82{
83    switch(format) {
84   case PIPE_FORMAT_YV12:
85      return const_resource_plane_order_YVU;
86
87   case PIPE_FORMAT_NV12:
88      return const_resource_plane_order_YUV;
89
90   default:
91      return NULL;
92   }
93}
94
95boolean
96vl_video_buffer_is_format_supported(struct pipe_screen *screen,
97                                    enum pipe_format format,
98                                    enum pipe_video_profile profile)
99{
100   const enum pipe_format *resource_formats;
101   unsigned i;
102
103   resource_formats = vl_video_buffer_formats(screen, format);
104   if (!resource_formats)
105      return false;
106
107   for (i = 0; i < VL_MAX_PLANES; ++i) {
108      if (!resource_formats[i])
109         continue;
110
111      if (!screen->is_format_supported(screen, resource_formats[i], PIPE_TEXTURE_2D, 0, PIPE_USAGE_STATIC))
112         return false;
113   }
114
115   return true;
116}
117
118unsigned
119vl_video_buffer_max_size(struct pipe_screen *screen)
120{
121   uint32_t max_2d_texture_level;
122
123   max_2d_texture_level = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
124
125   return 1 << (max_2d_texture_level-1);
126}
127
128void
129vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
130                                    struct pipe_video_decoder *vdec,
131                                    void *associated_data,
132                                    void (*destroy_associated_data)(void *))
133{
134   vbuf->decoder = vdec;
135
136   if (vbuf->associated_data == associated_data)
137      return;
138
139   if (vbuf->associated_data)
140      vbuf->destroy_associated_data(vbuf->associated_data);
141
142   vbuf->associated_data = associated_data;
143   vbuf->destroy_associated_data = destroy_associated_data;
144}
145
146void *
147vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
148                                    struct pipe_video_decoder *vdec)
149{
150   if (vbuf->decoder == vdec)
151      return vbuf->associated_data;
152   else
153      return NULL;
154}
155
156void
157vl_vide_buffer_template(struct pipe_resource *templ,
158                        const struct pipe_video_buffer *tmpl,
159                        enum pipe_format resource_format,
160                        unsigned depth, unsigned usage, unsigned plane)
161{
162   memset(templ, 0, sizeof(*templ));
163   templ->target = depth > 1 ? PIPE_TEXTURE_3D : PIPE_TEXTURE_2D;
164   templ->format = resource_format;
165   templ->width0 = tmpl->width;
166   templ->height0 = tmpl->height;
167   templ->depth0 = depth;
168   templ->array_size = 1;
169   templ->bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
170   templ->usage = usage;
171
172   if (plane > 0) {
173      if (tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
174         templ->width0 /= 2;
175         templ->height0 /= 2;
176      } else if (tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
177         templ->height0 /= 2;
178      }
179   }
180}
181
182static void
183vl_video_buffer_destroy(struct pipe_video_buffer *buffer)
184{
185   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
186   unsigned i;
187
188   assert(buf);
189
190   for (i = 0; i < VL_MAX_PLANES; ++i) {
191      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
192      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
193      pipe_resource_reference(&buf->resources[i], NULL);
194   }
195
196   for (i = 0; i < VL_MAX_PLANES * 2; ++i)
197      pipe_surface_reference(&buf->surfaces[i], NULL);
198
199   vl_video_buffer_set_associated_data(buffer, NULL, NULL, NULL);
200
201   FREE(buffer);
202}
203
204static struct pipe_sampler_view **
205vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
206{
207   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
208   struct pipe_sampler_view sv_templ;
209   struct pipe_context *pipe;
210   unsigned i;
211
212   assert(buf);
213
214   pipe = buf->base.context;
215
216   for (i = 0; i < buf->num_planes; ++i ) {
217      if (!buf->sampler_view_planes[i]) {
218         memset(&sv_templ, 0, sizeof(sv_templ));
219         u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
220
221         if (util_format_get_nr_components(buf->resources[i]->format) == 1)
222            sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
223
224         buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
225         if (!buf->sampler_view_planes[i])
226            goto error;
227      }
228   }
229
230   return buf->sampler_view_planes;
231
232error:
233   for (i = 0; i < buf->num_planes; ++i )
234      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
235
236   return NULL;
237}
238
239static struct pipe_sampler_view **
240vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
241{
242   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
243   struct pipe_sampler_view sv_templ;
244   struct pipe_context *pipe;
245   const unsigned *plane_order;
246   unsigned i, j, component;
247
248   assert(buf);
249
250   pipe = buf->base.context;
251
252   plane_order = vl_video_buffer_plane_order(buf->base.buffer_format);
253
254   for (component = 0, i = 0; i < buf->num_planes; ++i ) {
255      struct pipe_resource *res = buf->resources[plane_order[i]];
256      unsigned nr_components = util_format_get_nr_components(res->format);
257
258      for (j = 0; j < nr_components; ++j, ++component) {
259         assert(component < VL_MAX_PLANES);
260
261         if (!buf->sampler_view_components[component]) {
262            memset(&sv_templ, 0, sizeof(sv_templ));
263            u_sampler_view_default_template(&sv_templ, res, res->format);
264            sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
265            sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
266            buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, res, &sv_templ);
267            if (!buf->sampler_view_components[component])
268               goto error;
269         }
270      }
271   }
272
273   return buf->sampler_view_components;
274
275error:
276   for (i = 0; i < VL_MAX_PLANES; ++i )
277      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
278
279   return NULL;
280}
281
282static struct pipe_surface **
283vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
284{
285   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
286   struct pipe_surface surf_templ;
287   struct pipe_context *pipe;
288   unsigned i, j, surf;
289
290   assert(buf);
291
292   pipe = buf->base.context;
293
294   for (i = 0, surf = 0; i < buf->num_planes; ++i ) {
295      for (j = 0; j < buf->resources[i]->depth0; ++j, ++surf) {
296         assert(surf < (VL_MAX_PLANES * 2));
297
298         if (!buf->surfaces[surf]) {
299            memset(&surf_templ, 0, sizeof(surf_templ));
300            surf_templ.format = buf->resources[i]->format;
301            surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
302            surf_templ.u.tex.first_layer = surf_templ.u.tex.last_layer = j;
303            buf->surfaces[i] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
304            if (!buf->surfaces[i])
305               goto error;
306         }
307      }
308   }
309
310   return buf->surfaces;
311
312error:
313   for (i = 0; i < (VL_MAX_PLANES * 2); ++i )
314      pipe_surface_reference(&buf->surfaces[i], NULL);
315
316   return NULL;
317}
318
319struct pipe_video_buffer *
320vl_video_buffer_create(struct pipe_context *pipe,
321                       const struct pipe_video_buffer *tmpl)
322{
323   const enum pipe_format *resource_formats;
324   struct pipe_video_buffer templat;
325   bool pot_buffers;
326
327   assert(pipe);
328   assert(tmpl->width > 0 && tmpl->height > 0);
329
330   pot_buffers = !pipe->screen->get_video_param
331   (
332      pipe->screen,
333      PIPE_VIDEO_PROFILE_UNKNOWN,
334      PIPE_VIDEO_CAP_NPOT_TEXTURES
335   );
336
337   resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
338   if (!resource_formats)
339      return NULL;
340
341   templat = *tmpl;
342   templat.width = pot_buffers ? util_next_power_of_two(tmpl->width)
343                 : align(tmpl->width, MACROBLOCK_WIDTH);
344   templat.height = pot_buffers ? util_next_power_of_two(tmpl->height)
345                  : align(tmpl->height, MACROBLOCK_HEIGHT);
346
347   if (tmpl->interlaced)
348      templat.height /= 2;
349
350   return vl_video_buffer_create_ex
351   (
352      pipe, &templat, resource_formats,
353      tmpl->interlaced ? 2 : 1, PIPE_USAGE_STATIC
354   );
355}
356
357struct pipe_video_buffer *
358vl_video_buffer_create_ex(struct pipe_context *pipe,
359                          const struct pipe_video_buffer *tmpl,
360                          const enum pipe_format resource_formats[VL_MAX_PLANES],
361                          unsigned depth, unsigned usage)
362{
363   struct pipe_resource res_tmpl;
364   struct pipe_resource *resources[VL_MAX_PLANES];
365   unsigned i;
366
367   assert(pipe);
368
369   memset(resources, 0, sizeof resources);
370
371   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[0], depth, usage, 0);
372   resources[0] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
373   if (!resources[0])
374      goto error;
375
376   if (resource_formats[1] == PIPE_FORMAT_NONE) {
377      assert(tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_444);
378      assert(resource_formats[2] == PIPE_FORMAT_NONE);
379      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
380   }
381
382   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[1], depth, usage, 1);
383   resources[1] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
384   if (!resources[1])
385      goto error;
386
387   if (resource_formats[2] == PIPE_FORMAT_NONE)
388      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
389
390   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[2], depth, usage, 2);
391   resources[2] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
392   if (!resources[2])
393      goto error;
394
395   return vl_video_buffer_create_ex2(pipe, tmpl, resources);
396
397error:
398   for (i = 0; i < VL_MAX_PLANES; ++i)
399      pipe_resource_reference(&resources[i], NULL);
400
401   return NULL;
402}
403
404struct pipe_video_buffer *
405vl_video_buffer_create_ex2(struct pipe_context *pipe,
406                           const struct pipe_video_buffer *tmpl,
407                           struct pipe_resource *resources[VL_MAX_PLANES])
408{
409   struct vl_video_buffer *buffer;
410   unsigned i;
411
412   buffer = CALLOC_STRUCT(vl_video_buffer);
413
414   buffer->base = *tmpl;
415   buffer->base.context = pipe;
416   buffer->base.destroy = vl_video_buffer_destroy;
417   buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
418   buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
419   buffer->base.get_surfaces = vl_video_buffer_surfaces;
420   buffer->num_planes = 0;
421
422   for (i = 0; i < VL_MAX_PLANES; ++i) {
423      buffer->resources[i] = resources[i];
424      if (resources[i])
425         buffer->num_planes++;
426   }
427
428   return &buffer->base;
429}
430