vdpau.c revision 01e04c3f 
1/**************************************************************************
2 *
3 * Copyright 2013 Advanced Micro Devices, Inc.
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 THE COPYRIGHT HOLDER(S) OR AUTHOR(S) 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/*
29 * Authors:
30 *      Christian König <christian.koenig@amd.com>
31 *
32 */
33
34#include <stdbool.h>
35#include "util/hash_table.h"
36#include "util/set.h"
37#include "context.h"
38#include "glformats.h"
39#include "texobj.h"
40#include "teximage.h"
41#include "vdpau.h"
42
43#define MAX_TEXTURES 4
44
45struct vdp_surface
46{
47   GLenum target;
48   struct gl_texture_object *textures[MAX_TEXTURES];
49   GLenum access, state;
50   GLboolean output;
51   const GLvoid *vdpSurface;
52};
53
54void GLAPIENTRY
55_mesa_VDPAUInitNV(const GLvoid *vdpDevice, const GLvoid *getProcAddress)
56{
57   GET_CURRENT_CONTEXT(ctx);
58
59   if (!vdpDevice) {
60      _mesa_error(ctx, GL_INVALID_VALUE, "vdpDevice");
61      return;
62   }
63
64   if (!getProcAddress) {
65      _mesa_error(ctx, GL_INVALID_VALUE, "getProcAddress");
66      return;
67   }
68
69   if (ctx->vdpDevice || ctx->vdpGetProcAddress || ctx->vdpSurfaces) {
70      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUInitNV");
71      return;
72   }
73
74   ctx->vdpDevice = vdpDevice;
75   ctx->vdpGetProcAddress = getProcAddress;
76   ctx->vdpSurfaces = _mesa_set_create(NULL, _mesa_hash_pointer,
77                                       _mesa_key_pointer_equal);
78}
79
80static void
81unregister_surface(struct set_entry *entry)
82{
83   struct vdp_surface *surf = (struct vdp_surface *)entry->key;
84   GET_CURRENT_CONTEXT(ctx);
85
86   if (surf->state == GL_SURFACE_MAPPED_NV) {
87      GLintptr surfaces[] = { (GLintptr)surf };
88      _mesa_VDPAUUnmapSurfacesNV(1, surfaces);
89   }
90
91   _mesa_set_remove(ctx->vdpSurfaces, entry);
92   free(surf);
93}
94
95void GLAPIENTRY
96_mesa_VDPAUFiniNV(void)
97{
98   GET_CURRENT_CONTEXT(ctx);
99
100   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
101      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUFiniNV");
102      return;
103   }
104
105   _mesa_set_destroy(ctx->vdpSurfaces, unregister_surface);
106
107   ctx->vdpDevice = 0;
108   ctx->vdpGetProcAddress = 0;
109   ctx->vdpSurfaces = NULL;
110}
111
112static GLintptr
113register_surface(struct gl_context *ctx, GLboolean isOutput,
114                 const GLvoid *vdpSurface, GLenum target,
115                 GLsizei numTextureNames, const GLuint *textureNames)
116{
117   struct vdp_surface *surf;
118   int i;
119
120   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
121      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAURegisterSurfaceNV");
122      return (GLintptr)NULL;
123   }
124
125   if (target != GL_TEXTURE_2D && target != GL_TEXTURE_RECTANGLE) {
126      _mesa_error(ctx, GL_INVALID_ENUM, "VDPAURegisterSurfaceNV");
127      return (GLintptr)NULL;
128   }
129
130   if (target == GL_TEXTURE_RECTANGLE && !ctx->Extensions.NV_texture_rectangle) {
131      _mesa_error(ctx, GL_INVALID_ENUM, "VDPAURegisterSurfaceNV");
132      return (GLintptr)NULL;
133   }
134
135   surf = CALLOC_STRUCT( vdp_surface );
136   if (surf == NULL) {
137      _mesa_error_no_memory("VDPAURegisterSurfaceNV");
138      return (GLintptr)NULL;
139   }
140
141   surf->vdpSurface = vdpSurface;
142   surf->target = target;
143   surf->access = GL_READ_WRITE;
144   surf->state = GL_SURFACE_REGISTERED_NV;
145   surf->output = isOutput;
146   for (i = 0; i < numTextureNames; ++i) {
147      struct gl_texture_object *tex;
148
149      tex = _mesa_lookup_texture_err(ctx, textureNames[i],
150                                     "VDPAURegisterSurfaceNV");
151      if (tex == NULL) {
152         free(surf);
153         return (GLintptr)NULL;
154      }
155
156      _mesa_lock_texture(ctx, tex);
157
158      if (tex->Immutable) {
159         _mesa_unlock_texture(ctx, tex);
160         free(surf);
161         _mesa_error(ctx, GL_INVALID_OPERATION,
162                     "VDPAURegisterSurfaceNV(texture is immutable)");
163         return (GLintptr)NULL;
164      }
165
166      if (tex->Target == 0) {
167         tex->Target = target;
168         tex->TargetIndex = _mesa_tex_target_to_index(ctx, target);
169      } else if (tex->Target != target) {
170         _mesa_unlock_texture(ctx, tex);
171         free(surf);
172         _mesa_error(ctx, GL_INVALID_OPERATION,
173                     "VDPAURegisterSurfaceNV(target mismatch)");
174         return (GLintptr)NULL;
175      }
176
177      /* This will disallow respecifying the storage. */
178      tex->Immutable = GL_TRUE;
179      _mesa_unlock_texture(ctx, tex);
180
181      _mesa_reference_texobj(&surf->textures[i], tex);
182   }
183
184   _mesa_set_add(ctx->vdpSurfaces, surf);
185
186   return (GLintptr)surf;
187}
188
189GLintptr GLAPIENTRY
190_mesa_VDPAURegisterVideoSurfaceNV(const GLvoid *vdpSurface, GLenum target,
191                                  GLsizei numTextureNames,
192                                  const GLuint *textureNames)
193{
194   GET_CURRENT_CONTEXT(ctx);
195
196   if (numTextureNames != 4) {
197      _mesa_error(ctx, GL_INVALID_VALUE, "VDPAURegisterVideoSurfaceNV");
198      return (GLintptr)NULL;
199   }
200
201   return register_surface(ctx, false, vdpSurface, target,
202                           numTextureNames, textureNames);
203}
204
205GLintptr GLAPIENTRY
206_mesa_VDPAURegisterOutputSurfaceNV(const GLvoid *vdpSurface, GLenum target,
207                                   GLsizei numTextureNames,
208                                   const GLuint *textureNames)
209{
210   GET_CURRENT_CONTEXT(ctx);
211
212   if (numTextureNames != 1) {
213      _mesa_error(ctx, GL_INVALID_VALUE, "VDPAURegisterVideoSurfaceNV");
214      return (GLintptr)NULL;
215   }
216
217   return register_surface(ctx, true, vdpSurface, target,
218                           numTextureNames, textureNames);
219}
220
221GLboolean GLAPIENTRY
222_mesa_VDPAUIsSurfaceNV(GLintptr surface)
223{
224   struct vdp_surface *surf = (struct vdp_surface *)surface;
225   GET_CURRENT_CONTEXT(ctx);
226
227   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
228      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUIsSurfaceNV");
229      return false;
230   }
231
232   if (!_mesa_set_search(ctx->vdpSurfaces, surf)) {
233      return false;
234   }
235
236   return true;
237}
238
239void GLAPIENTRY
240_mesa_VDPAUUnregisterSurfaceNV(GLintptr surface)
241{
242   struct vdp_surface *surf = (struct vdp_surface *)surface;
243   struct set_entry *entry;
244   int i;
245   GET_CURRENT_CONTEXT(ctx);
246
247   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
248      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUUnregisterSurfaceNV");
249      return;
250   }
251
252   /* according to the spec it's ok when this is zero */
253   if (surface == 0)
254      return;
255
256   entry = _mesa_set_search(ctx->vdpSurfaces, surf);
257   if (!entry) {
258      _mesa_error(ctx, GL_INVALID_VALUE, "VDPAUUnregisterSurfaceNV");
259      return;
260   }
261
262   for (i = 0; i < MAX_TEXTURES; i++) {
263      if (surf->textures[i]) {
264         surf->textures[i]->Immutable = GL_FALSE;
265         _mesa_reference_texobj(&surf->textures[i], NULL);
266      }
267   }
268
269   _mesa_set_remove(ctx->vdpSurfaces, entry);
270   free(surf);
271}
272
273void GLAPIENTRY
274_mesa_VDPAUGetSurfaceivNV(GLintptr surface, GLenum pname, GLsizei bufSize,
275                          GLsizei *length, GLint *values)
276{
277   struct vdp_surface *surf = (struct vdp_surface *)surface;
278   GET_CURRENT_CONTEXT(ctx);
279
280   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
281      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUGetSurfaceivNV");
282      return;
283   }
284
285   if (!_mesa_set_search(ctx->vdpSurfaces, surf)) {
286      _mesa_error(ctx, GL_INVALID_VALUE, "VDPAUGetSurfaceivNV");
287      return;
288   }
289
290   if (pname != GL_SURFACE_STATE_NV) {
291      _mesa_error(ctx, GL_INVALID_ENUM, "VDPAUGetSurfaceivNV");
292      return;
293   }
294
295   if (bufSize < 1) {
296      _mesa_error(ctx, GL_INVALID_VALUE, "VDPAUGetSurfaceivNV");
297      return;
298   }
299
300   values[0] = surf->state;
301
302   if (length != NULL)
303      *length = 1;
304}
305
306void GLAPIENTRY
307_mesa_VDPAUSurfaceAccessNV(GLintptr surface, GLenum access)
308{
309   struct vdp_surface *surf = (struct vdp_surface *)surface;
310   GET_CURRENT_CONTEXT(ctx);
311
312   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
313      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUSurfaceAccessNV");
314      return;
315   }
316
317   if (!_mesa_set_search(ctx->vdpSurfaces, surf)) {
318      _mesa_error(ctx, GL_INVALID_VALUE, "VDPAUSurfaceAccessNV");
319      return;
320   }
321
322   if (access != GL_READ_ONLY && access != GL_WRITE_ONLY &&
323       access != GL_READ_WRITE) {
324
325      _mesa_error(ctx, GL_INVALID_VALUE, "VDPAUSurfaceAccessNV");
326      return;
327   }
328
329   if (surf->state == GL_SURFACE_MAPPED_NV) {
330      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUSurfaceAccessNV");
331      return;
332   }
333
334   surf->access = access;
335}
336
337void GLAPIENTRY
338_mesa_VDPAUMapSurfacesNV(GLsizei numSurfaces, const GLintptr *surfaces)
339{
340   GET_CURRENT_CONTEXT(ctx);
341   int i;
342
343   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
344      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUUnmapSurfacesNV");
345      return;
346   }
347
348   for (i = 0; i < numSurfaces; ++i) {
349      struct vdp_surface *surf = (struct vdp_surface *)surfaces[i];
350
351      if (!_mesa_set_search(ctx->vdpSurfaces, surf)) {
352         _mesa_error(ctx, GL_INVALID_VALUE, "VDPAUSurfaceAccessNV");
353         return;
354      }
355
356      if (surf->state == GL_SURFACE_MAPPED_NV) {
357         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUSurfaceAccessNV");
358         return;
359      }
360   }
361
362   for (i = 0; i < numSurfaces; ++i) {
363      struct vdp_surface *surf = (struct vdp_surface *)surfaces[i];
364      unsigned numTextureNames = surf->output ? 1 : 4;
365      unsigned j;
366
367      for (j = 0; j < numTextureNames; ++j) {
368         struct gl_texture_object *tex = surf->textures[j];
369         struct gl_texture_image *image;
370
371         _mesa_lock_texture(ctx, tex);
372         image = _mesa_get_tex_image(ctx, tex, surf->target, 0);
373         if (!image) {
374            _mesa_error(ctx, GL_OUT_OF_MEMORY, "VDPAUMapSurfacesNV");
375            _mesa_unlock_texture(ctx, tex);
376            return;
377         }
378
379         ctx->Driver.FreeTextureImageBuffer(ctx, image);
380
381         ctx->Driver.VDPAUMapSurface(ctx, surf->target, surf->access,
382                                     surf->output, tex, image,
383                                     surf->vdpSurface, j);
384
385         _mesa_unlock_texture(ctx, tex);
386      }
387      surf->state = GL_SURFACE_MAPPED_NV;
388   }
389}
390
391void GLAPIENTRY
392_mesa_VDPAUUnmapSurfacesNV(GLsizei numSurfaces, const GLintptr *surfaces)
393{
394   GET_CURRENT_CONTEXT(ctx);
395   int i;
396
397   if (!ctx->vdpDevice || !ctx->vdpGetProcAddress || !ctx->vdpSurfaces) {
398      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUUnmapSurfacesNV");
399      return;
400   }
401
402   for (i = 0; i < numSurfaces; ++i) {
403      struct vdp_surface *surf = (struct vdp_surface *)surfaces[i];
404
405      if (!_mesa_set_search(ctx->vdpSurfaces, surf)) {
406         _mesa_error(ctx, GL_INVALID_VALUE, "VDPAUSurfaceAccessNV");
407         return;
408      }
409
410      if (surf->state != GL_SURFACE_MAPPED_NV) {
411         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUSurfaceAccessNV");
412         return;
413      }
414   }
415
416   for (i = 0; i < numSurfaces; ++i) {
417      struct vdp_surface *surf = (struct vdp_surface *)surfaces[i];
418      unsigned numTextureNames = surf->output ? 1 : 4;
419      unsigned j;
420
421      for (j = 0; j < numTextureNames; ++j) {
422         struct gl_texture_object *tex = surf->textures[j];
423         struct gl_texture_image *image;
424
425         _mesa_lock_texture(ctx, tex);
426
427         image = _mesa_select_tex_image(tex, surf->target, 0);
428
429         ctx->Driver.VDPAUUnmapSurface(ctx, surf->target, surf->access,
430                                       surf->output, tex, image,
431                                       surf->vdpSurface, j);
432
433         if (image)
434            ctx->Driver.FreeTextureImageBuffer(ctx, image);
435
436         _mesa_unlock_texture(ctx, tex);
437      }
438      surf->state = GL_SURFACE_REGISTERED_NV;
439   }
440}
441