Dave Reveman's patch for GLX_MESA_copy_sub_buffer support

2 files changed, 12 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/common/dri_util.c b/src/mesa/drivers/dri/common/dri_util.c
index 883a89c8886..d68837b545a 100644
--- a/src/mesa/drivers/dri/common/dri_util.c
+++ b/src/mesa/drivers/dri/common/dri_util.c
@@ -547,6 +547,13 @@ static int64_t driSwapBuffersMSC( __DRInativeDisplay * dpy, void *drawablePriv,
                                                            remainder );
 }
 
+static void driCopySubBuffer( __DRInativeDisplay *dpy, void *drawablePrivate,
+			      int x, int y, int w, int h)
+{
+    __DRIdrawablePrivate *dPriv = (__DRIdrawablePrivate *) drawablePrivate;
+    dPriv->driScreenPriv->DriverAPI.CopySubBuffer(dPriv, x, y, w, h);
+    (void) dpy;
+}
 
 /**
  * This is called via __DRIscreenRec's createNewDrawable pointer.
@@ -623,6 +630,9 @@ static void *driCreateNewDrawable(__DRInativeDisplay *dpy,
     pdraw->frameTracking = NULL;
     pdraw->queryFrameTracking = driQueryFrameTracking;
 
+    if (driCompareGLXAPIVersion (20060314) >= 0)
+	pdraw->copySubBuffer = driCopySubBuffer;
+
     /* This special default value is replaced with the configured
      * default value when the drawable is first bound to a direct
      * rendering context. 
diff --git a/src/mesa/drivers/dri/common/dri_util.h b/src/mesa/drivers/dri/common/dri_util.h
index b9b38f39cd6..14c24a0efaa 100644
--- a/src/mesa/drivers/dri/common/dri_util.h
+++ b/src/mesa/drivers/dri/common/dri_util.h
@@ -189,6 +189,8 @@ struct __DriverAPIRec {
     int64_t (*SwapBuffersMSC)( __DRIdrawablePrivate *priv, int64_t target_msc,
 			       int64_t divisor, int64_t remainder );
     /*@}*/
+    void (*CopySubBuffer)(__DRIdrawablePrivate *driDrawPriv,
+			  int x, int y, int w, int h);
 };