From a0b5c983645e672b6c86d2bd52764ad58fda5d70 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 8 Jun 2005 02:14:55 +0000
Subject: check for double-buffered buffer in XMesaDestroyBuffer() (Dave
 Reveman)

---
 src/mesa/drivers/x11/xm_api.c | 37 ++++++++++++++++++++-----------------
 1 file changed, 20 insertions(+), 17 deletions(-)

(limited to 'src/mesa/drivers')

diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index d902db0e3e..f710a29866 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -1999,24 +1999,27 @@ void XMesaDestroyBuffer( XMesaBuffer b )
    if (b->cleargc)  XMesaFreeGC( b->xm_visual->display, b->cleargc );
    if (b->swapgc)  XMesaFreeGC( b->xm_visual->display, b->swapgc );
 
-   if (b->backxrb->ximage) {
+   if (b->xm_visual->mesa_visual.doubleBufferMode)
+   {
+       if (b->backxrb->ximage) {
 #if defined(USE_XSHM) && !defined(XFree86Server)
-       if (b->shm) {
-	   XShmDetach( b->xm_visual->display, &b->shminfo );
-	   XDestroyImage( b->backxrb->ximage );
-	   shmdt( b->shminfo.shmaddr );
-       }
-       else
+	   if (b->shm) {
+	       XShmDetach( b->xm_visual->display, &b->shminfo );
+	       XDestroyImage( b->backxrb->ximage );
+	       shmdt( b->shminfo.shmaddr );
+	   }
+	   else
 #endif
-	   XMesaDestroyImage( b->backxrb->ximage );
-   }
-   if (b->backxrb->pixmap) {
-      XMesaFreePixmap( b->xm_visual->display, b->backxrb->pixmap );
-      if (b->xm_visual->hpcr_clear_flag) {
-	XMesaFreePixmap( b->xm_visual->display,
-			 b->xm_visual->hpcr_clear_pixmap );
-	XMesaDestroyImage( b->xm_visual->hpcr_clear_ximage );
-      }
+	       XMesaDestroyImage( b->backxrb->ximage );
+       }
+       if (b->backxrb->pixmap) {
+	   XMesaFreePixmap( b->xm_visual->display, b->backxrb->pixmap );
+	   if (b->xm_visual->hpcr_clear_flag) {
+	       XMesaFreePixmap( b->xm_visual->display,
+				b->xm_visual->hpcr_clear_pixmap );
+	       XMesaDestroyImage( b->xm_visual->hpcr_clear_ximage );
+	   }
+       }
    }
    if (b->rowimage) {
       _mesa_free( b->rowimage->data );
@@ -2634,7 +2637,7 @@ unsigned long XMesaDitherColor( XMesaContext xmesa, GLint x, GLint y,
  */
 void XMesaResizeBuffers( XMesaBuffer b )
 {
-#if OLD_RENDERBUFFER && 0
+#if OLD_RENDERBUFFER
    xmesa_resize_buffers(ctx, &(b->mesa_buffer), 0, 0 );
 #endif
 }
-- 
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