From e4656003caee346d9c4eb23256d73409271291a7 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Sat, 5 Oct 2002 18:27:41 +0000
Subject: Pbuffers seem to work!

---
 src/mesa/drivers/x11/xm_api.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

(limited to 'src/mesa/drivers/x11/xm_api.c')

diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c
index 4f34e2b6a8..708e2a8a81 100644
--- a/src/mesa/drivers/x11/xm_api.c
+++ b/src/mesa/drivers/x11/xm_api.c
@@ -1,4 +1,4 @@
-/* $Id: xm_api.c,v 1.42 2002/10/05 03:02:34 brianp Exp $ */
+/* $Id: xm_api.c,v 1.43 2002/10/05 18:27:41 brianp Exp $ */
 
 /*
  * Mesa 3-D graphics library
@@ -628,9 +628,7 @@ void xmesa_alloc_back_buffer( XMesaBuffer b )
 	 b->backimage = XMesaCreateImage(b->xm_visual->BitsPerPixel,
 					 b->width, b->height, NULL);
 #else
-      if (b->shm==0
-	  || alloc_shm_back_buffer(b)==GL_FALSE
-	  ) {
+      if (b->shm==0 || alloc_shm_back_buffer(b)==GL_FALSE) {
 	 /* Allocate a regular XImage for the back buffer. */
 	 b->backimage = XCreateImage( b->xm_visual->display,
                                       b->xm_visual->visinfo->visual,
@@ -1932,9 +1930,10 @@ XMesaBuffer XMesaCreatePBuffer( XMesaVisual v, XMesaColormap cmap,
                                 unsigned int width, unsigned int height )
 {
    int client = 0;
+   XMesaWindow root;
+   XMesaDrawable drawable;  /* X Pixmap Drawable */
    XMesaBuffer b = alloc_xmesa_buffer();
    if (!b) {
-      printf("return NULL 1\n");
       return NULL;
    }
 
@@ -1943,6 +1942,10 @@ XMesaBuffer XMesaCreatePBuffer( XMesaVisual v, XMesaColormap cmap,
    b->display = v->display;
    b->cmap = cmap;
 
+   /* allocate pixmap for front buffer */
+   root = RootWindow( v->display, v->visinfo->screen );
+   drawable = XCreatePixmap( v->display, root, width, height, v->visinfo->depth );
+
    /* determine back buffer implementation */
    if (v->mesa_visual.doubleBufferMode) {
       if (v->ximage_flag) {
@@ -1966,9 +1969,8 @@ XMesaBuffer XMesaCreatePBuffer( XMesaVisual v, XMesaColormap cmap,
                                 v->mesa_visual.alphaBits > 0 );
 
    if (!initialize_visual_and_buffer(client, v, b, v->mesa_visual.rgbMode,
-				     0, cmap)) {
+				     drawable, cmap)) {
       free_xmesa_buffer(client, b);
-      printf("return NULL\n");
       return NULL;
    }
 
-- 
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