+static unsigned r300_texture_is_referenced(struct pipe_context *context,
+ struct pipe_resource *texture,
+ unsigned face, unsigned level)
+{
+ struct r300_context *r300 = r300_context(context);
+ struct r300_texture *rtex = (struct r300_texture *)texture;
+
+ if (r300->rws->is_buffer_referenced(r300->rws, rtex->buffer, R300_REF_CS))
+ return PIPE_REFERENCED_FOR_READ | PIPE_REFERENCED_FOR_WRITE;
+
+ return PIPE_UNREFERENCED;
+}
+
+static void r300_texture_destroy(struct pipe_screen *screen,
+ struct pipe_resource* texture)
+{
+ struct r300_texture* tex = (struct r300_texture*)texture;
+ struct r300_winsys_screen *rws = (struct r300_winsys_screen *)texture->screen->winsys;
+
+ rws->buffer_reference(rws, &tex->buffer, NULL);
+ FREE(tex);
+}
+
+static boolean r300_texture_get_handle(struct pipe_screen* screen,
+ struct pipe_resource *texture,
+ struct winsys_handle *whandle)
+{
+ struct r300_winsys_screen *rws = (struct r300_winsys_screen *)screen->winsys;
+ struct r300_texture* tex = (struct r300_texture*)texture;
+ unsigned stride;
+
+ if (!tex) {
+ return FALSE;
+ }
+
+ stride = r300_texture_get_stride(r300_screen(screen), tex, 0);
+
+ rws->buffer_get_handle(rws, tex->buffer, stride, whandle);
+
+ return TRUE;
+}
+
+struct u_resource_vtbl r300_texture_vtbl =
+{
+ r300_texture_get_handle, /* get_handle */
+ r300_texture_destroy, /* resource_destroy */
+ r300_texture_is_referenced, /* is_resource_referenced */
+ r300_texture_get_transfer, /* get_transfer */
+ r300_texture_transfer_destroy, /* transfer_destroy */
+ r300_texture_transfer_map, /* transfer_map */
+ u_default_transfer_flush_region, /* transfer_flush_region */
+ r300_texture_transfer_unmap, /* transfer_unmap */
+ u_default_transfer_inline_write /* transfer_inline_write */
+};
+