C++ (Cpp) st_vdpau_video_surface_galliumの例

コード例 #1

ファイル: st_vdpau.c プロジェクト: airlied/mesa

static void
st_vdpau_map_surface(struct gl_context *ctx, GLenum target, GLenum access,
                     GLboolean output, struct gl_texture_object *texObj,
                     struct gl_texture_image *texImage,
                     const void *vdpSurface, GLuint index)
{
   struct st_context *st = st_context(ctx);
   struct st_texture_object *stObj = st_texture_object(texObj);
   struct st_texture_image *stImage = st_texture_image(texImage);

   struct pipe_resource *res;
   struct pipe_sampler_view templ, **sampler_view;
   mesa_format texFormat;

   if (output) {
      res = st_vdpau_output_surface_dma_buf(ctx, vdpSurface);

      if (!res)
         res = st_vdpau_output_surface_gallium(ctx, vdpSurface);

   } else {
      res = st_vdpau_video_surface_dma_buf(ctx, vdpSurface, index);

      if (!res)
         res = st_vdpau_video_surface_gallium(ctx, vdpSurface, index);
   }

   if (!res) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
      return;
   }

   /* do we have different screen objects ? */
   if (res->screen != st->pipe->screen) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
      return;
   }

   /* switch to surface based */
   if (!stObj->surface_based) {
      _mesa_clear_texture_object(ctx, texObj);
      stObj->surface_based = GL_TRUE;
   }

   texFormat = st_pipe_format_to_mesa_format(res->format);

   _mesa_init_teximage_fields(ctx, texImage,
                              res->width0, res->height0, 1, 0, GL_RGBA,
                              texFormat);

   pipe_resource_reference(&stObj->pt, res);
   st_texture_release_all_sampler_views(st, stObj);
   pipe_resource_reference(&stImage->pt, res);

   u_sampler_view_default_template(&templ, res, res->format);
   templ.u.tex.first_layer = index & 1;
   templ.u.tex.last_layer = index & 1;
   templ.swizzle_r = GET_SWZ(stObj->base._Swizzle, 0);
   templ.swizzle_g = GET_SWZ(stObj->base._Swizzle, 1);
   templ.swizzle_b = GET_SWZ(stObj->base._Swizzle, 2);
   templ.swizzle_a = GET_SWZ(stObj->base._Swizzle, 3);

   sampler_view = st_texture_get_sampler_view(st, stObj);
   *sampler_view = st->pipe->create_sampler_view(st->pipe, res, &templ);

   stObj->surface_format = res->format;

   _mesa_dirty_texobj(ctx, texObj);
}

コード例 #2

ファイル: st_vdpau.c プロジェクト: Echelon9/mesa

static void
st_vdpau_map_surface(struct gl_context *ctx, GLenum target, GLenum access,
                     GLboolean output, struct gl_texture_object *texObj,
                     struct gl_texture_image *texImage,
                     const void *vdpSurface, GLuint index)
{
   struct st_context *st = st_context(ctx);
   struct st_texture_object *stObj = st_texture_object(texObj);
   struct st_texture_image *stImage = st_texture_image(texImage);

   struct pipe_resource *res;
   mesa_format texFormat;
   uint layer_override = 0;

   if (output) {
      res = st_vdpau_output_surface_dma_buf(ctx, vdpSurface);

      if (!res)
         res = st_vdpau_output_surface_gallium(ctx, vdpSurface);

   } else {
      res = st_vdpau_video_surface_dma_buf(ctx, vdpSurface, index);

      if (!res) {
         res = st_vdpau_video_surface_gallium(ctx, vdpSurface, index);
         layer_override = index & 1;
      }
   }

   if (!res) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
      return;
   }

   /* do we have different screen objects ? */
   if (res->screen != st->pipe->screen) {
      _mesa_error(ctx, GL_INVALID_OPERATION, "VDPAUMapSurfacesNV");
      pipe_resource_reference(&res, NULL);
      return;
   }

   /* switch to surface based */
   if (!stObj->surface_based) {
      _mesa_clear_texture_object(ctx, texObj);
      stObj->surface_based = GL_TRUE;
   }

   texFormat = st_pipe_format_to_mesa_format(res->format);

   _mesa_init_teximage_fields(ctx, texImage,
                              res->width0, res->height0, 1, 0, GL_RGBA,
                              texFormat);

   pipe_resource_reference(&stObj->pt, res);
   st_texture_release_all_sampler_views(st, stObj);
   pipe_resource_reference(&stImage->pt, res);

   stObj->surface_format = res->format;
   stObj->layer_override = layer_override;

   _mesa_dirty_texobj(ctx, texObj);
   pipe_resource_reference(&res, NULL);
}