From c7a5d528c7e5f4812b423bf4c091d21c34af3cf1 Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Tue, 28 Mar 2006 15:21:44 +0000
Subject: [PATCH] a little code movement so we don't make invalid casts from
 gl_renderbuffers to xmesa_renderbuffers

---
 src/mesa/drivers/x11/xm_dd.c   |  7 ++++++-
 src/mesa/drivers/x11/xm_line.c |  9 ++++++---
 src/mesa/drivers/x11/xm_tri.c  | 16 ++++++++++++----
 3 files changed, 24 insertions(+), 8 deletions(-)

diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c
index 9c0771e6cdb..516b238d6eb 100644
--- a/src/mesa/drivers/x11/xm_dd.c
+++ b/src/mesa/drivers/x11/xm_dd.c
@@ -214,10 +214,15 @@ color_mask(GLcontext *ctx,
            GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
 {
    const XMesaContext xmesa = XMESA_CONTEXT(ctx);
-   XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+   XMesaBuffer xmbuf;
    const int xclass = xmesa->xm_visual->mesa_visual.visualType;
    (void) amask;
 
+   if (ctx->DrawBuffer->Name != 0)
+      return;
+
+   xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+
    if (xclass == GLX_TRUE_COLOR || xclass == GLX_DIRECT_COLOR) {
       unsigned long m;
       if (rmask && gmask && bmask) {
diff --git a/src/mesa/drivers/x11/xm_line.c b/src/mesa/drivers/x11/xm_line.c
index 1c50de3dc9c..f60ffa65eb9 100644
--- a/src/mesa/drivers/x11/xm_line.c
+++ b/src/mesa/drivers/x11/xm_line.c
@@ -2,7 +2,7 @@
  * Mesa 3-D graphics library
  * Version:  6.5
  *
- * Copyright (C) 1999-2005  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -69,7 +69,7 @@ static void draw_points_ANY_pixmap( GLcontext *ctx, const SWvertex *vert )
 						  color[2], color[3],
 						  xmesa->pixelformat);
       XMesaSetForeground( dpy, gc, pixel );
-      x =                         (GLint) vert->win[0];
+      x = (GLint) vert->win[0];
       y = YFLIP( xrb, (GLint) vert->win[1] );
       XMesaDrawPoint( dpy, buffer, gc, x, y);
    }
@@ -577,7 +577,7 @@ get_line_func(GLcontext *ctx)
    XMesaContext xmesa = XMESA_CONTEXT(ctx);
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
    int depth = GET_VISUAL_DEPTH(xmesa->xm_visual);
-   GET_XRB(xrb);
+   struct xmesa_renderbuffer *xrb;
 
    if ((ctx->DrawBuffer->_ColorDrawBufferMask[0]
         & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) == 0)
@@ -589,6 +589,9 @@ get_line_func(GLcontext *ctx)
    if (ctx->Line.StippleFlag)             return (swrast_line_func) NULL;
    if (swrast->_RasterMask & MULTI_DRAW_BIT) return (swrast_line_func) NULL;
 
+   xrb = (struct xmesa_renderbuffer *)
+      ctx->DrawBuffer->_ColorDrawBuffers[0][0]->Wrapped;
+
    if (xrb->ximage
        && swrast->_RasterMask==DEPTH_BIT
        && ctx->Depth.Func==GL_LESS
diff --git a/src/mesa/drivers/x11/xm_tri.c b/src/mesa/drivers/x11/xm_tri.c
index 87989f46f89..61e8986a9b2 100644
--- a/src/mesa/drivers/x11/xm_tri.c
+++ b/src/mesa/drivers/x11/xm_tri.c
@@ -1,8 +1,8 @@
 /*
  * Mesa 3-D graphics library
- * Version:  6.3
+ * Version:  6.5
  *
- * Copyright (C) 1999-2004  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2006  Brian Paul   All Rights Reserved.
  *
  * Permission is hereby granted, free of charge, to any person obtaining a
  * copy of this software and associated documentation files (the "Software"),
@@ -1425,12 +1425,17 @@ do {                                   \
 #endif
 
 
-static swrast_tri_func get_triangle_func( GLcontext *ctx )
+/**
+ * Return pointer to line drawing function, or NULL if we should use a
+ * swrast fallback.
+ */
+static swrast_tri_func
+get_triangle_func(GLcontext *ctx)
 {
    SWcontext *swrast = SWRAST_CONTEXT(ctx);
    XMesaContext xmesa = XMESA_CONTEXT(ctx);
    int depth = GET_VISUAL_DEPTH(xmesa->xm_visual);
-   GET_XRB(xrb);
+   struct xmesa_renderbuffer *xrb;
 
 #ifdef DEBUG
    triFuncName = NULL;
@@ -1447,6 +1452,9 @@ static swrast_tri_func get_triangle_func( GLcontext *ctx )
        ctx->Polygon.CullFaceMode == GL_FRONT_AND_BACK)
                                         return (swrast_tri_func) NULL;
 
+   xrb = (struct xmesa_renderbuffer *)
+      ctx->DrawBuffer->_ColorDrawBuffers[0][0]->Wrapped;
+
    if (xrb->ximage) {
       if (   ctx->Light.ShadeModel==GL_SMOOTH
           && swrast->_RasterMask==DEPTH_BIT
-- 
2.30.2