# HG changeset patch
# User Sunny Sachanandani <sunnysachanandani@gmail.com>
# Date 1275305660 -19800
# Node ID d490d63bcc5eeff6d115cc86bc9fa189c74fca40
# Parent  cb338fa6535c500cb1d55712c509eada01ffa3f3
X11_RenderPresent now uses XRender to blit back-buffers to the screen.

diff -r cb338fa6535c -r d490d63bcc5e src/video/x11/SDL_x11render.c
--- a/src/video/x11/SDL_x11render.c	Mon May 31 15:09:36 2010 +0530
+++ b/src/video/x11/SDL_x11render.c	Mon May 31 17:04:20 2010 +0530
@@ -1205,9 +1205,19 @@
     if (!(renderer->info.flags & SDL_RENDERER_SINGLEBUFFER)) {
         for (dirty = data->dirty.list; dirty; dirty = dirty->next) {
             const SDL_Rect *rect = &dirty->rect;
+#ifdef SDL_VIDEO_DRIVER_X11_XRENDER
+            if(data->xrender_available == SDL_TRUE)
+            {
+                XRenderComposite(data->display, PictOpSrc, data->drawable_pict, None, data->xwindow_pict,
+                                 rect->x, rect->y, 0, 0, rect->x, rect->y, rect->w, rect->h);
+            }
+            else
+#endif
+            {
             XCopyArea(data->display, data->drawable, data->xwindow,
                       data->gc, rect->x, rect->y, rect->w, rect->h,
                       rect->x, rect->y);
+            }
         }
         SDL_ClearDirtyRects(&data->dirty);
     }
@@ -1217,9 +1227,15 @@
     if (renderer->info.flags & SDL_RENDERER_PRESENTFLIP2) {
         data->current_pixmap = (data->current_pixmap + 1) % 2;
         data->drawable = data->pixmaps[data->current_pixmap];
+#ifdef SDL_VIDEO_DRIVER_X11_XRENDER
+        data->drawable_pict = data->pixmap_picts[data->current_pixmap];
+#endif
     } else if (renderer->info.flags & SDL_RENDERER_PRESENTFLIP3) {
         data->current_pixmap = (data->current_pixmap + 1) % 3;
         data->drawable = data->pixmaps[data->current_pixmap];
+#ifdef SDL_VIDEO_DRIVER_X11_XRENDER
+        data->drawable_pict = data->pixmap_picts[data->current_pixmap];
+#endif
     }
 }