From: Brian Paul
Since the Xlib driver emulates the GLX extension, it's not
-totally conformance with a true GLX implementation.
+totally conformant with a true GLX implementation.
The differences are fairly obscure, however.
Mesa supports RGB(A) rendering into almost any X visual type and depth.
@@ -68,7 +68,7 @@ Here are some examples: -Mesa can use either an X Pixmap or XImage as the backbuffer when in double buffer mode. Using GLX, the default is to use an XImage. The @@ -107,7 +107,7 @@ significant.
-To compensate for the nonlinear relationship between pixel values and displayed intensities, there is a gamma correction feature in @@ -171,11 +171,12 @@ SERVER_OVERLAY_VISUALS property: -
If you set the MESA_HPCR_CLEAR environment variable then dithering will be used when clearing the color buffer. This is only applicable to HP systems with the HPCR (Color Recovery) feature. +This incurs a small performance penalty.