+/* Figure out whether u_blitter will fallback to a transfer operation.
+ * If so, don't use a staging resource.
+ */
+static boolean permit_hardware_blit(struct pipe_screen *screen,
+ const struct pipe_resource *res)
+{
+ unsigned bind;
+
+ if (util_format_is_depth_or_stencil(res->format))
+ bind = PIPE_BIND_DEPTH_STENCIL;
+ else
+ bind = PIPE_BIND_RENDER_TARGET;
+
+ /* hackaround for S3TC */
+ if (util_format_is_compressed(res->format))
+ return TRUE;
+
+ if (!screen->is_format_supported(screen,
+ res->format,
+ res->target,
+ res->nr_samples,
+ bind))
+ return FALSE;
+
+ if (!screen->is_format_supported(screen,
+ res->format,
+ res->target,
+ res->nr_samples,
+ PIPE_BIND_SAMPLER_VIEW))
+ return FALSE;
+
+ return TRUE;
+}
+
+static boolean r600_texture_get_handle(struct pipe_screen* screen,
+ struct pipe_resource *ptex,
+ struct winsys_handle *whandle)
+{
+ struct r600_resource_texture *rtex = (struct r600_resource_texture*)ptex;
+ struct r600_resource *resource = &rtex->resource;
+ struct radeon *radeon = (struct radeon *)screen->winsys;
+
+ return r600_bo_get_winsys_handle(radeon, resource->bo,
+ rtex->pitch_in_bytes[0], whandle);
+}
+
+static void r600_texture_destroy(struct pipe_screen *screen,
+ struct pipe_resource *ptex)
+{
+ struct r600_resource_texture *rtex = (struct r600_resource_texture*)ptex;
+ struct r600_resource *resource = &rtex->resource;
+ struct radeon *radeon = (struct radeon *)screen->winsys;
+
+ if (rtex->flushed_depth_texture)
+ pipe_resource_reference((struct pipe_resource **)&rtex->flushed_depth_texture, NULL);
+
+ if (resource->bo) {
+ r600_bo_reference(radeon, &resource->bo, NULL);
+ }
+ FREE(rtex);
+}
+
+static const struct u_resource_vtbl r600_texture_vtbl =
+{
+ r600_texture_get_handle, /* get_handle */
+ r600_texture_destroy, /* resource_destroy */
+ r600_texture_get_transfer, /* get_transfer */
+ r600_texture_transfer_destroy, /* transfer_destroy */
+ r600_texture_transfer_map, /* transfer_map */
+ u_default_transfer_flush_region,/* transfer_flush_region */
+ r600_texture_transfer_unmap, /* transfer_unmap */
+ u_default_transfer_inline_write /* transfer_inline_write */
+};
+