Mesa (mesa_7_4_branch): xlib: use MESA_GLX_FORCE_DIRECT to make glXIsDirect () always return True

[Brian Paul]

Module: Mesa
Branch: mesa_7_4_branch
Commit: ce9c69ddbc639c2f7c436a47d2b1ea9d2da13004
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ce9c69ddbc639c2f7c436a47d2b1ea9d2da13004

Author: Brian Paul <brianp at vmware.com>
Date:   Tue Feb  3 10:12:51 2009 -0700

xlib: use MESA_GLX_FORCE_DIRECT to make glXIsDirect() always return True

Some apps won't run w/ indirect rendering contexts.
Also, consolidate some context-init code in new init_glx_context() function.

(cherry-picked from master, commit 49e80bf6b163310f7cd776261872201eea57053a)

---

 src/mesa/drivers/x11/fakeglx.c |   45 ++++++++++++++++++++++-----------------
 1 files changed, 25 insertions(+), 20 deletions(-)

diff --git a/src/mesa/drivers/x11/fakeglx.c b/src/mesa/drivers/x11/fakeglx.c
index ea35852..73fde86 100644
--- a/src/mesa/drivers/x11/fakeglx.c
+++ b/src/mesa/drivers/x11/fakeglx.c
@@ -1,8 +1,9 @@
 /*
  * Mesa 3-D graphics library
- * Version:  7.1
+ * Version:  7.5
  *
- * Copyright (C) 1999-2007  Brian Paul   All Rights Reserved.
+ * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
+ * Copyright (C) 2009  VMware, Inc.   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"),
@@ -1392,6 +1393,25 @@ Fake_glXChooseVisual( Display *dpy, int screen, int *list )
 }
 
 
+/**
+ * Init basic fields of a new fake_glx_context.
+ * If the MESA_GLX_FORCE_DIRECT env var is set, the context will be marked as
+ * a direct rendering context.  Some apps won't run without this.
+ */
+static void
+init_glx_context(struct fake_glx_context *glxCtx, Display *dpy)
+{
+   GLboolean direct = _mesa_getenv("MESA_GLX_FORCE_DIRECT") ? GL_TRUE : GL_FALSE;
+   glxCtx->xmesaContext->direct = direct;
+   glxCtx->glxContext.isDirect = direct;
+   glxCtx->glxContext.currentDpy = dpy;
+   glxCtx->glxContext.xid = (XID) glxCtx;  /* self pointer */
+
+   assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
+}
+
+
+
 static GLXContext
 Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
                        GLXContext share_list, Bool direct )
@@ -1430,12 +1450,7 @@ Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo,
       return NULL;
    }
 
-   glxCtx->xmesaContext->direct = GL_FALSE;
-   glxCtx->glxContext.isDirect = GL_FALSE;
-   glxCtx->glxContext.currentDpy = dpy;
-   glxCtx->glxContext.xid = (XID) glxCtx;  /* self pointer */
-
-   assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
+   init_glx_context(glxCtx, dpy);
 
    return (GLXContext) glxCtx;
 }
@@ -2441,12 +2456,7 @@ Fake_glXCreateNewContext( Display *dpy, GLXFBConfig config,
       return NULL;
    }
 
-   glxCtx->xmesaContext->direct = GL_FALSE;
-   glxCtx->glxContext.isDirect = GL_FALSE;
-   glxCtx->glxContext.currentDpy = dpy;
-   glxCtx->glxContext.xid = (XID) glxCtx;  /* self pointer */
-
-   assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
+   init_glx_context(glxCtx, dpy);
 
    return (GLXContext) glxCtx;
 }
@@ -2664,12 +2674,7 @@ Fake_glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int re
       return NULL;
    }
 
-   glxCtx->xmesaContext->direct = GL_FALSE;
-   glxCtx->glxContext.isDirect = GL_FALSE;
-   glxCtx->glxContext.currentDpy = dpy;
-   glxCtx->glxContext.xid = (XID) glxCtx;  /* self pointer */
-
-   assert((void *) glxCtx == (void *) &(glxCtx->glxContext));
+   init_glx_context(glxCtx, dpy);
 
    return (GLXContext) glxCtx;
 }