Add CreatePixmap allocation hints.

These hints allow an acceleration architecture to optimize allocation of certain
types of pixmaps, such as pixmaps that will serve as backing pixmaps for
redirected windows.

1 files changed, 9 insertions, 1 deletions

diff --git a/include/scrnintstr.h b/include/scrnintstr.h
index bcec02e39..383ee80e1 100644
--- a/include/scrnintstr.h
+++ b/include/scrnintstr.h
@@ -197,11 +197,19 @@ typedef    void (* ClipNotifyProcPtr)(
 	int /*dx*/,
 	int /*dy*/);
 
+/* pixmap will exist only for the duration of the current rendering operation */
+#define CREATE_PIXMAP_USAGE_SCRATCH                     1
+/* pixmap will be the backing pixmap for a redirected window */
+#define CREATE_PIXMAP_USAGE_BACKING_PIXMAP              2
+/* pixmap will contain a glyph */
+#define CREATE_PIMXAP_USAGE_GLYPH_PICTURE               3
+
 typedef    PixmapPtr (* CreatePixmapProcPtr)(
 	ScreenPtr /*pScreen*/,
 	int /*width*/,
 	int /*height*/,
-	int /*depth*/);
+	int /*depth*/,
+	unsigned /*usage_hint*/);
 
 typedef    Bool (* DestroyPixmapProcPtr)(
 	PixmapPtr /*pPixmap*/);