path: root/docs
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authorBrian Paul <>2009-02-03 10:13:22 -0700
committerBrian Paul <>2009-02-03 15:36:38 -0700
commit2f51be75c55f69dc3e09036d6fd12f808f5a5028 (patch)
tree7fcc86280c78c66a462e6efa175e02c6b4b41dba /docs
parent49e80bf6b163310f7cd776261872201eea57053a (diff)
docs: document new MESA_GLX_FORCE_DIRECT env var for the Xlib driver
Diffstat (limited to 'docs')
1 files changed, 16 insertions, 0 deletions
diff --git a/docs/xlibdriver.html b/docs/xlibdriver.html
index d95f4d579c6..029e2b1514e 100644
--- a/docs/xlibdriver.html
+++ b/docs/xlibdriver.html
@@ -169,6 +169,20 @@ the Gamma FAQ</a>
+<H2>Direct Rendering Flag</H2>
+Some applications won't run with indirect rendering contexts (which is
+what the Xlib driver supports).
+To force the glXIsDirect() query to return True, set the MESA_GLX_FORCE_DIRECT
+environment variable.
+For example:
<H2>Overlay Planes</H2>
Hardware overlay planes are supported by the Xlib driver. To
@@ -268,6 +282,8 @@ This extension was added in Mesa 2.6
MESA_BACK_BUFFER - specifies how to implement the back color buffer (X only)
MESA_PRIVATE_CMAP - force aux/tk libraries to use private colormaps (X only)
MESA_GAMMA - gamma correction coefficients (X only)
+ MESA_GLX_FORCE_DIRECT - report that the driver is direct rendering, even
+ though it's not.