vl_video_buffer.c revision 9af70c90dba9ed9902778883b675062fa0168b48 
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 enum pipe_format *
54vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format)
55{
56   switch(format) {
57   case PIPE_FORMAT_YV12:
58      return const_resource_formats_YV12;
59
60   case PIPE_FORMAT_NV12:
61      return const_resource_formats_NV12;
62
63   default:
64      return NULL;
65   }
66}
67
68boolean
69vl_video_buffer_is_format_supported(struct pipe_screen *screen,
70                                    enum pipe_format format,
71                                    enum pipe_video_profile profile)
72{
73   const enum pipe_format *resource_formats;
74   unsigned i;
75
76   resource_formats = vl_video_buffer_formats(screen, format);
77   if (!resource_formats)
78      return false;
79
80   for (i = 0; i < VL_MAX_PLANES; ++i) {
81      if (!resource_formats[i])
82         continue;
83
84      if (!screen->is_format_supported(screen, resource_formats[i], PIPE_TEXTURE_2D, 0, PIPE_USAGE_STATIC))
85         return false;
86   }
87
88   return true;
89}
90
91unsigned
92vl_video_buffer_max_size(struct pipe_screen *screen)
93{
94   uint32_t max_2d_texture_level;
95
96   max_2d_texture_level = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
97
98   return 1 << (max_2d_texture_level-1);
99}
100
101void
102vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
103                                    struct pipe_video_decoder *vdec,
104                                    void *associated_data,
105                                    void (*destroy_associated_data)(void *))
106{
107   vbuf->decoder = vdec;
108
109   if (vbuf->associated_data == associated_data)
110      return;
111
112   if (vbuf->associated_data)
113      vbuf->destroy_associated_data(vbuf->associated_data);
114
115   vbuf->associated_data = associated_data;
116   vbuf->destroy_associated_data = destroy_associated_data;
117}
118
119void *
120vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
121                                    struct pipe_video_decoder *vdec)
122{
123   if (vbuf->decoder == vdec)
124      return vbuf->associated_data;
125   else
126      return NULL;
127}
128
129void
130vl_vide_buffer_template(struct pipe_resource *templ,
131                        const struct pipe_video_buffer *tmpl,
132                        enum pipe_format resource_format,
133                        unsigned depth, unsigned usage, unsigned plane)
134{
135   memset(templ, 0, sizeof(*templ));
136   templ->target = depth > 1 ? PIPE_TEXTURE_3D : PIPE_TEXTURE_2D;
137   templ->format = resource_format;
138   templ->width0 = tmpl->width;
139   templ->height0 = tmpl->height;
140   templ->depth0 = depth;
141   templ->array_size = 1;
142   templ->bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
143   templ->usage = usage;
144
145   if (plane > 0) {
146      if (tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
147         templ->width0 /= 2;
148         templ->height0 /= 2;
149      } else if (tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
150         templ->height0 /= 2;
151      }
152   }
153}
154
155static void
156vl_video_buffer_destroy(struct pipe_video_buffer *buffer)
157{
158   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
159   unsigned i;
160
161   assert(buf);
162
163   for (i = 0; i < VL_MAX_PLANES; ++i) {
164      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
165      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
166      pipe_resource_reference(&buf->resources[i], NULL);
167   }
168
169   for (i = 0; i < VL_MAX_PLANES * 2; ++i)
170      pipe_surface_reference(&buf->surfaces[i], NULL);
171
172   vl_video_buffer_set_associated_data(buffer, NULL, NULL, NULL);
173
174   FREE(buffer);
175}
176
177static struct pipe_sampler_view **
178vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
179{
180   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
181   struct pipe_sampler_view sv_templ;
182   struct pipe_context *pipe;
183   unsigned i;
184
185   assert(buf);
186
187   pipe = buf->base.context;
188
189   for (i = 0; i < buf->num_planes; ++i ) {
190      if (!buf->sampler_view_planes[i]) {
191         memset(&sv_templ, 0, sizeof(sv_templ));
192         u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
193
194         if (util_format_get_nr_components(buf->resources[i]->format) == 1)
195            sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
196
197         buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
198         if (!buf->sampler_view_planes[i])
199            goto error;
200      }
201   }
202
203   return buf->sampler_view_planes;
204
205error:
206   for (i = 0; i < buf->num_planes; ++i )
207      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
208
209   return NULL;
210}
211
212static struct pipe_sampler_view **
213vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
214{
215   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
216   struct pipe_sampler_view sv_templ;
217   struct pipe_context *pipe;
218   unsigned i, j, component;
219
220   assert(buf);
221
222   pipe = buf->base.context;
223
224   for (component = 0, i = 0; i < buf->num_planes; ++i ) {
225      unsigned nr_components = util_format_get_nr_components(buf->resources[i]->format);
226
227      for (j = 0; j < nr_components; ++j, ++component) {
228         assert(component < VL_MAX_PLANES);
229
230         if (!buf->sampler_view_components[component]) {
231            memset(&sv_templ, 0, sizeof(sv_templ));
232            u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
233            sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
234            sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
235            buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
236            if (!buf->sampler_view_components[component])
237               goto error;
238         }
239      }
240   }
241
242   return buf->sampler_view_components;
243
244error:
245   for (i = 0; i < VL_MAX_PLANES; ++i )
246      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
247
248   return NULL;
249}
250
251static struct pipe_surface **
252vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
253{
254   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
255   struct pipe_surface surf_templ;
256   struct pipe_context *pipe;
257   unsigned i, j, surf;
258
259   assert(buf);
260
261   pipe = buf->base.context;
262
263   for (i = 0, surf = 0; i < buf->num_planes; ++i ) {
264      for (j = 0; j < buf->resources[i]->depth0; ++j, ++surf) {
265         assert(surf < (VL_MAX_PLANES * 2));
266
267         if (!buf->surfaces[surf]) {
268            memset(&surf_templ, 0, sizeof(surf_templ));
269            surf_templ.format = buf->resources[i]->format;
270            surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
271            surf_templ.u.tex.first_layer = surf_templ.u.tex.last_layer = j;
272            buf->surfaces[i] = pipe->create_surface(pipe, buf->resources[i], &surf_templ);
273            if (!buf->surfaces[i])
274               goto error;
275         }
276      }
277   }
278
279   return buf->surfaces;
280
281error:
282   for (i = 0; i < (VL_MAX_PLANES * 2); ++i )
283      pipe_surface_reference(&buf->surfaces[i], NULL);
284
285   return NULL;
286}
287
288struct pipe_video_buffer *
289vl_video_buffer_create(struct pipe_context *pipe,
290                       const struct pipe_video_buffer *tmpl)
291{
292   const enum pipe_format *resource_formats;
293   struct pipe_video_buffer templat;
294   bool pot_buffers;
295
296   assert(pipe);
297   assert(tmpl->width > 0 && tmpl->height > 0);
298
299   pot_buffers = !pipe->screen->get_video_param
300   (
301      pipe->screen,
302      PIPE_VIDEO_PROFILE_UNKNOWN,
303      PIPE_VIDEO_CAP_NPOT_TEXTURES
304   );
305
306   resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
307   if (!resource_formats)
308      return NULL;
309
310   templat = *tmpl;
311   templat.width = pot_buffers ? util_next_power_of_two(tmpl->width)
312                 : align(tmpl->width, MACROBLOCK_WIDTH);
313   templat.height = pot_buffers ? util_next_power_of_two(tmpl->height)
314                  : align(tmpl->height, MACROBLOCK_HEIGHT);
315
316   if (tmpl->interlaced)
317      templat.height /= 2;
318
319   return vl_video_buffer_create_ex
320   (
321      pipe, &templat, resource_formats,
322      tmpl->interlaced ? 2 : 1, PIPE_USAGE_STATIC
323   );
324}
325
326struct pipe_video_buffer *
327vl_video_buffer_create_ex(struct pipe_context *pipe,
328                          const struct pipe_video_buffer *tmpl,
329                          const enum pipe_format resource_formats[VL_MAX_PLANES],
330                          unsigned depth, unsigned usage)
331{
332   struct pipe_resource res_tmpl, *resources[VL_MAX_PLANES] = {};
333   unsigned i;
334
335   assert(pipe);
336
337   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[0], depth, usage, 0);
338   resources[0] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
339   if (!resources[0])
340      goto error;
341
342   if (resource_formats[1] == PIPE_FORMAT_NONE) {
343      assert(tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_444);
344      assert(resource_formats[2] == PIPE_FORMAT_NONE);
345      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
346   }
347
348   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[1], depth, usage, 1);
349   resources[1] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
350   if (!resources[1])
351      goto error;
352
353   if (resource_formats[2] == PIPE_FORMAT_NONE)
354      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
355
356   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[2], depth, usage, 2);
357   resources[2] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
358   if (!resources[2])
359      goto error;
360
361   return vl_video_buffer_create_ex2(pipe, tmpl, resources);
362
363error:
364   for (i = 0; i < VL_MAX_PLANES; ++i)
365      pipe_resource_reference(&resources[i], NULL);
366
367   return NULL;
368}
369
370struct pipe_video_buffer *
371vl_video_buffer_create_ex2(struct pipe_context *pipe,
372                           const struct pipe_video_buffer *tmpl,
373                           struct pipe_resource *resources[VL_MAX_PLANES])
374{
375   struct vl_video_buffer *buffer;
376   unsigned i;
377
378   buffer = CALLOC_STRUCT(vl_video_buffer);
379
380   buffer->base = *tmpl;
381   buffer->base.context = pipe;
382   buffer->base.destroy = vl_video_buffer_destroy;
383   buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
384   buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
385   buffer->base.get_surfaces = vl_video_buffer_surfaces;
386   buffer->num_planes = 0;
387
388   for (i = 0; i < VL_MAX_PLANES; ++i) {
389      buffer->resources[i] = resources[i];
390      if (resources[i])
391         buffer->num_planes++;
392   }
393
394   return &buffer->base;
395}
396