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 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_YUYV[3] = {
66   PIPE_FORMAT_R8G8_R8B8_UNORM,
67   PIPE_FORMAT_NONE,
68   PIPE_FORMAT_NONE
69};
70
71const enum pipe_format const_resource_formats_UYVY[3] = {
72   PIPE_FORMAT_G8R8_B8R8_UNORM,
73   PIPE_FORMAT_NONE,
74   PIPE_FORMAT_NONE
75};
76
77const unsigned const_resource_plane_order_YUV[3] = {
78   0,
79   1,
80   2
81};
82
83const unsigned const_resource_plane_order_YVU[3] = {
84   0,
85   2,
86   1
87};
88
89const enum pipe_format *
90vl_video_buffer_formats(struct pipe_screen *screen, enum pipe_format format)
91{
92   switch(format) {
93   case PIPE_FORMAT_YV12:
94      return const_resource_formats_YV12;
95
96   case PIPE_FORMAT_NV12:
97      return const_resource_formats_NV12;
98
99   case PIPE_FORMAT_R8G8B8A8_UNORM:
100      return const_resource_formats_YUVA;
101
102   case PIPE_FORMAT_B8G8R8A8_UNORM:
103      return const_resource_formats_VUYA;
104
105   case PIPE_FORMAT_YUYV:
106      return const_resource_formats_YUYV;
107
108   case PIPE_FORMAT_UYVY:
109      return const_resource_formats_UYVY;
110
111   default:
112      return NULL;
113   }
114}
115
116const unsigned *
117vl_video_buffer_plane_order(enum pipe_format format)
118{
119   switch(format) {
120   case PIPE_FORMAT_YV12:
121      return const_resource_plane_order_YVU;
122
123   case PIPE_FORMAT_NV12:
124   case PIPE_FORMAT_R8G8B8A8_UNORM:
125   case PIPE_FORMAT_B8G8R8A8_UNORM:
126   case PIPE_FORMAT_YUYV:
127   case PIPE_FORMAT_UYVY:
128      return const_resource_plane_order_YUV;
129
130   default:
131      return NULL;
132   }
133}
134
135static enum pipe_format
136vl_video_buffer_surface_format(enum pipe_format format)
137{
138   const struct util_format_description *desc = util_format_description(format);
139
140   /* a subsampled formats can't work as surface use RGBA instead */
141   if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED)
142      return PIPE_FORMAT_R8G8B8A8_UNORM;
143
144   return format;
145}
146
147boolean
148vl_video_buffer_is_format_supported(struct pipe_screen *screen,
149                                    enum pipe_format format,
150                                    enum pipe_video_profile profile)
151{
152   const enum pipe_format *resource_formats;
153   unsigned i;
154
155   resource_formats = vl_video_buffer_formats(screen, format);
156   if (!resource_formats)
157      return false;
158
159   for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
160      enum pipe_format format = resource_formats[i];
161
162      if (format == PIPE_FORMAT_NONE)
163         continue;
164
165      /* we at least need to sample from it */
166      if (!screen->is_format_supported(screen, format, PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW))
167         return false;
168
169      format = vl_video_buffer_surface_format(format);
170      if (!screen->is_format_supported(screen, format, PIPE_TEXTURE_2D, 0, PIPE_BIND_RENDER_TARGET))
171         return false;
172   }
173
174   return true;
175}
176
177unsigned
178vl_video_buffer_max_size(struct pipe_screen *screen)
179{
180   uint32_t max_2d_texture_level;
181
182   max_2d_texture_level = screen->get_param(screen, PIPE_CAP_MAX_TEXTURE_2D_LEVELS);
183
184   return 1 << (max_2d_texture_level-1);
185}
186
187void
188vl_video_buffer_set_associated_data(struct pipe_video_buffer *vbuf,
189                                    struct pipe_video_decoder *vdec,
190                                    void *associated_data,
191                                    void (*destroy_associated_data)(void *))
192{
193   vbuf->decoder = vdec;
194
195   if (vbuf->associated_data == associated_data)
196      return;
197
198   if (vbuf->associated_data)
199      vbuf->destroy_associated_data(vbuf->associated_data);
200
201   vbuf->associated_data = associated_data;
202   vbuf->destroy_associated_data = destroy_associated_data;
203}
204
205void *
206vl_video_buffer_get_associated_data(struct pipe_video_buffer *vbuf,
207                                    struct pipe_video_decoder *vdec)
208{
209   if (vbuf->decoder == vdec)
210      return vbuf->associated_data;
211   else
212      return NULL;
213}
214
215void
216vl_vide_buffer_template(struct pipe_resource *templ,
217                        const struct pipe_video_buffer *tmpl,
218                        enum pipe_format resource_format,
219                        unsigned depth, unsigned usage, unsigned plane)
220{
221   memset(templ, 0, sizeof(*templ));
222   templ->target = depth > 1 ? PIPE_TEXTURE_3D : PIPE_TEXTURE_2D;
223   templ->format = resource_format;
224   templ->width0 = tmpl->width;
225   templ->height0 = tmpl->height;
226   templ->depth0 = depth;
227   templ->array_size = 1;
228   templ->bind = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
229   templ->usage = usage;
230
231   if (plane > 0) {
232      if (tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
233         templ->width0 /= 2;
234         templ->height0 /= 2;
235      } else if (tmpl->chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
236         templ->height0 /= 2;
237      }
238   }
239}
240
241static void
242vl_video_buffer_destroy(struct pipe_video_buffer *buffer)
243{
244   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
245   unsigned i;
246
247   assert(buf);
248
249   for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
250      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
251      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
252      pipe_resource_reference(&buf->resources[i], NULL);
253   }
254
255   for (i = 0; i < VL_NUM_COMPONENTS * 2; ++i)
256      pipe_surface_reference(&buf->surfaces[i], NULL);
257
258   vl_video_buffer_set_associated_data(buffer, NULL, NULL, NULL);
259
260   FREE(buffer);
261}
262
263static struct pipe_sampler_view **
264vl_video_buffer_sampler_view_planes(struct pipe_video_buffer *buffer)
265{
266   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
267   struct pipe_sampler_view sv_templ;
268   struct pipe_context *pipe;
269   unsigned i;
270
271   assert(buf);
272
273   pipe = buf->base.context;
274
275   for (i = 0; i < buf->num_planes; ++i ) {
276      if (!buf->sampler_view_planes[i]) {
277         memset(&sv_templ, 0, sizeof(sv_templ));
278         u_sampler_view_default_template(&sv_templ, buf->resources[i], buf->resources[i]->format);
279
280         if (util_format_get_nr_components(buf->resources[i]->format) == 1)
281            sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = sv_templ.swizzle_a = PIPE_SWIZZLE_RED;
282
283         buf->sampler_view_planes[i] = pipe->create_sampler_view(pipe, buf->resources[i], &sv_templ);
284         if (!buf->sampler_view_planes[i])
285            goto error;
286      }
287   }
288
289   return buf->sampler_view_planes;
290
291error:
292   for (i = 0; i < buf->num_planes; ++i )
293      pipe_sampler_view_reference(&buf->sampler_view_planes[i], NULL);
294
295   return NULL;
296}
297
298static struct pipe_sampler_view **
299vl_video_buffer_sampler_view_components(struct pipe_video_buffer *buffer)
300{
301   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
302   struct pipe_sampler_view sv_templ;
303   struct pipe_context *pipe;
304   const enum pipe_format *sampler_format;
305   const unsigned *plane_order;
306   unsigned i, j, component;
307
308   assert(buf);
309
310   pipe = buf->base.context;
311
312   sampler_format = vl_video_buffer_formats(pipe->screen, buf->base.buffer_format);
313   plane_order = vl_video_buffer_plane_order(buf->base.buffer_format);
314
315   for (component = 0, i = 0; i < buf->num_planes; ++i ) {
316      struct pipe_resource *res = buf->resources[plane_order[i]];
317      const struct util_format_description *desc = util_format_description(res->format);
318      unsigned nr_components = util_format_get_nr_components(res->format);
319      if (desc->layout == UTIL_FORMAT_LAYOUT_SUBSAMPLED)
320         nr_components = 3;
321
322      for (j = 0; j < nr_components && component < VL_NUM_COMPONENTS; ++j, ++component) {
323         if (buf->sampler_view_components[component])
324            continue;
325
326         memset(&sv_templ, 0, sizeof(sv_templ));
327         u_sampler_view_default_template(&sv_templ, res, sampler_format[plane_order[i]]);
328         sv_templ.swizzle_r = sv_templ.swizzle_g = sv_templ.swizzle_b = PIPE_SWIZZLE_RED + j;
329         sv_templ.swizzle_a = PIPE_SWIZZLE_ONE;
330         buf->sampler_view_components[component] = pipe->create_sampler_view(pipe, res, &sv_templ);
331         if (!buf->sampler_view_components[component])
332            goto error;
333      }
334   }
335   assert(component == VL_NUM_COMPONENTS);
336
337   return buf->sampler_view_components;
338
339error:
340   for (i = 0; i < VL_NUM_COMPONENTS; ++i )
341      pipe_sampler_view_reference(&buf->sampler_view_components[i], NULL);
342
343   return NULL;
344}
345
346static struct pipe_surface **
347vl_video_buffer_surfaces(struct pipe_video_buffer *buffer)
348{
349   struct vl_video_buffer *buf = (struct vl_video_buffer *)buffer;
350   struct pipe_surface surf_templ;
351   struct pipe_context *pipe;
352   unsigned i, j, depth, surf;
353
354   assert(buf);
355
356   pipe = buf->base.context;
357
358   depth = buffer->interlaced ? 2 : 1;
359   for (i = 0, surf = 0; i < depth; ++i ) {
360      for (j = 0; j < VL_NUM_COMPONENTS; ++j, ++surf) {
361         assert(surf < (VL_NUM_COMPONENTS * 2));
362
363         if (!buf->resources[j]) {
364            pipe_surface_reference(&buf->surfaces[surf], NULL);
365            continue;
366         }
367
368         if (!buf->surfaces[surf]) {
369            memset(&surf_templ, 0, sizeof(surf_templ));
370            surf_templ.format = vl_video_buffer_surface_format(buf->resources[j]->format);
371            surf_templ.usage = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
372            surf_templ.u.tex.first_layer = surf_templ.u.tex.last_layer = i;
373            buf->surfaces[surf] = pipe->create_surface(pipe, buf->resources[j], &surf_templ);
374            if (!buf->surfaces[surf])
375               goto error;
376         }
377      }
378   }
379
380   return buf->surfaces;
381
382error:
383   for (i = 0; i < (VL_NUM_COMPONENTS * 2); ++i )
384      pipe_surface_reference(&buf->surfaces[i], NULL);
385
386   return NULL;
387}
388
389struct pipe_video_buffer *
390vl_video_buffer_create(struct pipe_context *pipe,
391                       const struct pipe_video_buffer *tmpl)
392{
393   const enum pipe_format *resource_formats;
394   struct pipe_video_buffer templat, *result;
395   bool pot_buffers;
396
397   assert(pipe);
398   assert(tmpl->width > 0 && tmpl->height > 0);
399
400   pot_buffers = !pipe->screen->get_video_param
401   (
402      pipe->screen,
403      PIPE_VIDEO_PROFILE_UNKNOWN,
404      PIPE_VIDEO_CAP_NPOT_TEXTURES
405   );
406
407   resource_formats = vl_video_buffer_formats(pipe->screen, tmpl->buffer_format);
408   if (!resource_formats)
409      return NULL;
410
411   templat = *tmpl;
412   templat.width = pot_buffers ? util_next_power_of_two(tmpl->width)
413                 : align(tmpl->width, VL_MACROBLOCK_WIDTH);
414   templat.height = pot_buffers ? util_next_power_of_two(tmpl->height)
415                  : align(tmpl->height, VL_MACROBLOCK_HEIGHT);
416
417   if (tmpl->interlaced)
418      templat.height /= 2;
419
420   result = vl_video_buffer_create_ex
421   (
422      pipe, &templat, resource_formats,
423      tmpl->interlaced ? 2 : 1, PIPE_USAGE_STATIC
424   );
425
426
427   if (result && tmpl->interlaced)
428      result->height *= 2;
429
430   return result;
431}
432
433struct pipe_video_buffer *
434vl_video_buffer_create_ex(struct pipe_context *pipe,
435                          const struct pipe_video_buffer *tmpl,
436                          const enum pipe_format resource_formats[VL_NUM_COMPONENTS],
437                          unsigned depth, unsigned usage)
438{
439   struct pipe_resource res_tmpl;
440   struct pipe_resource *resources[VL_NUM_COMPONENTS];
441   unsigned i;
442
443   assert(pipe);
444
445   memset(resources, 0, sizeof resources);
446
447   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[0], depth, usage, 0);
448   resources[0] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
449   if (!resources[0])
450      goto error;
451
452   if (resource_formats[1] == PIPE_FORMAT_NONE) {
453      assert(resource_formats[2] == PIPE_FORMAT_NONE);
454      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
455   }
456
457   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[1], depth, usage, 1);
458   resources[1] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
459   if (!resources[1])
460      goto error;
461
462   if (resource_formats[2] == PIPE_FORMAT_NONE)
463      return vl_video_buffer_create_ex2(pipe, tmpl, resources);
464
465   vl_vide_buffer_template(&res_tmpl, tmpl, resource_formats[2], depth, usage, 2);
466   resources[2] = pipe->screen->resource_create(pipe->screen, &res_tmpl);
467   if (!resources[2])
468      goto error;
469
470   return vl_video_buffer_create_ex2(pipe, tmpl, resources);
471
472error:
473   for (i = 0; i < VL_NUM_COMPONENTS; ++i)
474      pipe_resource_reference(&resources[i], NULL);
475
476   return NULL;
477}
478
479struct pipe_video_buffer *
480vl_video_buffer_create_ex2(struct pipe_context *pipe,
481                           const struct pipe_video_buffer *tmpl,
482                           struct pipe_resource *resources[VL_NUM_COMPONENTS])
483{
484   struct vl_video_buffer *buffer;
485   unsigned i;
486
487   buffer = CALLOC_STRUCT(vl_video_buffer);
488
489   buffer->base = *tmpl;
490   buffer->base.context = pipe;
491   buffer->base.destroy = vl_video_buffer_destroy;
492   buffer->base.get_sampler_view_planes = vl_video_buffer_sampler_view_planes;
493   buffer->base.get_sampler_view_components = vl_video_buffer_sampler_view_components;
494   buffer->base.get_surfaces = vl_video_buffer_surfaces;
495   buffer->num_planes = 0;
496
497   for (i = 0; i < VL_NUM_COMPONENTS; ++i) {
498      buffer->resources[i] = resources[i];
499      if (resources[i])
500         buffer->num_planes++;
501   }
502
503   return &buffer->base;
504}
505