EXA: Try to minimize UploadToScreen calls for mixed pixmaps.

If there are several software fallbacks affecting the system memory copy of the
same pixmap, only copy the results back to the driver pixmap when it's used for
acceleration again, or in the BlockHandler, whichever happens first.

1 files changed, 12 insertions, 2 deletions

diff --git a/exa/exa.c b/exa/exa.c
index e264d440c..46e91820b 100644
--- a/exa/exa.c
+++ b/exa/exa.c
@@ -774,10 +774,18 @@ ExaBlockHandler(int screenNum, pointer blockData, pointer pTimeout,
     ScreenPtr pScreen = screenInfo.screens[screenNum];
     ExaScreenPriv(pScreen);
 
+    /* Move any deferred results from a software fallback to the driver pixmap */
+    if (pExaScr->deferred_mixed_pixmap)
+	exaMoveInPixmap_mixed(pExaScr->deferred_mixed_pixmap);
+
     unwrap(pExaScr, pScreen, BlockHandler);
     (*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
     wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler);
 
+    /* The rest only applies to classic EXA */
+    if (pExaScr->info->flags & EXA_HANDLES_PIXMAPS)
+	return;
+
     /* Try and keep the offscreen memory area tidy every now and then (at most 
      * once per second) when the server has been idle for at least 100ms.
      */
@@ -991,10 +999,12 @@ exaDriverInit (ScreenPtr		pScreen,
      * Replace various fb screen functions
      */
     if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) &&
-	!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS)) {
+	(!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS) ||
+	 (pExaScr->info->flags & EXA_MIXED_PIXMAPS)))
 	wrap(pExaScr, pScreen, BlockHandler, ExaBlockHandler);
+    if ((pExaScr->info->flags & EXA_OFFSCREEN_PIXMAPS) &&
+	!(pExaScr->info->flags & EXA_HANDLES_PIXMAPS))
 	wrap(pExaScr, pScreen, WakeupHandler, ExaWakeupHandler);
-    }
     wrap(pExaScr, pScreen, CreateGC, exaCreateGC);
     wrap(pExaScr, pScreen, CloseScreen, exaCloseScreen);
     wrap(pExaScr, pScreen, GetImage, exaGetImage);