src/mesa/state_tracker/st_vdpau.c

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