st_vdpau.c revision 848b8605 
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 "main/texobj.h"
35#include "main/teximage.h"
36#include "main/errors.h"
37#include "program/prog_instruction.h"
38
39#include "pipe/p_state.h"
40#include "pipe/p_video_codec.h"
41
42#include "state_tracker/vdpau_interop.h"
43
44#include "util/u_inlines.h"
45
46#include "st_vdpau.h"
47#include "st_context.h"
48#include "st_texture.h"
49#include "st_format.h"
50#include "st_cb_flush.h"
51
52static void
53st_vdpau_map_surface(struct gl_context *ctx, GLenum target, GLenum access,
54                     GLboolean output, struct gl_texture_object *texObj,
55                     struct gl_texture_image *texImage,
56                     const GLvoid *vdpSurface, GLuint index)
57{
58   int (*getProcAddr)(uint32_t device, uint32_t id, void **ptr);
59   uint32_t device = (uintptr_t)ctx->vdpDevice;
60
61   struct st_context *st = st_context(ctx);
62   struct st_texture_object *stObj = st_texture_object(texObj);
63   struct st_texture_image *stImage = st_texture_image(texImage);
64
65   struct pipe_resource *res;
66   struct pipe_sampler_view templ, **sampler_view;
67   mesa_format texFormat;
68
69   getProcAddr = ctx->vdpGetProcAddress;
70   if (output) {
71      VdpOutputSurfaceGallium *f;
72
73      if (getProcAddr(device, VDP_FUNC_ID_OUTPUT_SURFACE_GALLIUM, (void**)&f)) {
74         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
75         return;
76      }
77
78      res = f((uintptr_t)vdpSurface);
79
80      if (!res) {
81         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
82         return;
83      }
84
85   } else {
86      struct pipe_sampler_view *sv;
87      VdpVideoSurfaceGallium *f;
88
89      struct pipe_video_buffer *buffer;
90      struct pipe_sampler_view **samplers;
91
92      if (getProcAddr(device, VDP_FUNC_ID_VIDEO_SURFACE_GALLIUM, (void**)&f)) {
93         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
94         return;
95      }
96
97      buffer = f((uintptr_t)vdpSurface);
98      if (!buffer) {
99         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
100         return;
101      }
102
103      samplers = buffer->get_sampler_view_planes(buffer);
104      if (!samplers) {
105         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
106         return;
107      }
108
109      sv = samplers[index >> 1];
110      if (!sv) {
111         _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
112         return;
113      }
114
115      res = sv->texture;
116   }
117
118   if (!res) {
119      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
120      return;
121   }
122
123   /* do we have different screen objects ? */
124   if (res->screen != st->pipe->screen) {
125      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
126      return;
127   }
128
129   /* switch to surface based */
130   if (!stObj->surface_based) {
131      _mesa_clear_texture_object(ctx, texObj);
132      stObj->surface_based = GL_TRUE;
133   }
134
135   texFormat = st_pipe_format_to_mesa_format(res->format);
136
137   _mesa_init_teximage_fields(ctx, texImage,
138                              res->width0, res->height0, 1, 0, GL_RGBA,
139                              texFormat);
140
141   pipe_resource_reference(&stObj->pt, res);
142   st_texture_release_all_sampler_views(st, stObj);
143   pipe_resource_reference(&stImage->pt, res);
144
145   u_sampler_view_default_template(&templ, res, res->format);
146   templ.u.tex.first_layer = index & 1;
147   templ.u.tex.last_layer = index & 1;
148   templ.swizzle_r = GET_SWZ(stObj->base._Swizzle, 0);
149   templ.swizzle_g = GET_SWZ(stObj->base._Swizzle, 1);
150   templ.swizzle_b = GET_SWZ(stObj->base._Swizzle, 2);
151   templ.swizzle_a = GET_SWZ(stObj->base._Swizzle, 3);
152
153   sampler_view = st_texture_get_sampler_view(st, stObj);
154   *sampler_view = st->pipe->create_sampler_view(st->pipe, res, &templ);
155
156   stObj->width0 = res->width0;
157   stObj->height0 = res->height0;
158   stObj->depth0 = 1;
159   stObj->surface_format = res->format;
160
161   _mesa_dirty_texobj(ctx, texObj);
162}
163
164static void
165st_vdpau_unmap_surface(struct gl_context *ctx, GLenum target, GLenum access,
166                       GLboolean output, struct gl_texture_object *texObj,
167                       struct gl_texture_image *texImage,
168                       const GLvoid *vdpSurface, GLuint index)
169{
170   struct st_context *st = st_context(ctx);
171   struct st_texture_object *stObj = st_texture_object(texObj);
172   struct st_texture_image *stImage = st_texture_image(texImage);
173
174   pipe_resource_reference(&stObj->pt, NULL);
175   st_texture_release_all_sampler_views(st, stObj);
176   pipe_resource_reference(&stImage->pt, NULL);
177
178   _mesa_dirty_texobj(ctx, texObj);
179
180   st_flush(st, NULL, 0);
181}
182
183void
184st_init_vdpau_functions(struct dd_function_table *functions)
185{
186   functions->VDPAUMapSurface = st_vdpau_map_surface;
187   functions->VDPAUUnmapSurface = st_vdpau_unmap_surface;
188}
189