diff options
| author | Brian Paul <[email protected]> | 2011-03-24 11:39:21 -0600 |
|---|---|---|
| committer | Brian Paul <[email protected]> | 2011-03-24 11:39:23 -0600 |
| commit | 82dd62fb22c8f88d62e3c77666c6805a2ac6ecd3 (patch) | |
| tree | d1aed1089b9ffb2173719e6f5ac155d630116c10 /docs/envvars.html | |
| parent | 4c75d5ae63c356ac9b6d23009ccc9af6205dbb4a (diff) | |
mesa: new MESA_EXTENSION_MAX_YEAR env var
If set to year X, only report extensions up to that year. This is a
work-around for games that try to copy the extensions string to a fixed
size buffer and overflow. If a game was released in year X, setting
MESA_EXTENSION_MAX_YEAR to that year will likely fix the problem.
Diffstat (limited to 'docs/envvars.html')
| -rw-r--r-- | docs/envvars.html | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/docs/envvars.html b/docs/envvars.html index c8be8437176..986d2f8eb35 100644 --- a/docs/envvars.html +++ b/docs/envvars.html @@ -49,6 +49,15 @@ Setting this variable automatically sets the MESA_TEX_PROG variable as well. <li>MESA_EXTENSION_OVERRIDE - can be used to enable/disable extensions. A value such as "GL_EXT_foo -GL_EXT_bar" will enable the GL_EXT_foo extension and disable the GL_EXT_bar extension. +<li>MESA_EXTENSION_MAX_YEAR - The GL_EXTENSIONS string returned by Mesa is sorted +by extension year. +If this variable is set to year X, only extensions defined on or before year +X will be reported. +This is to work-around a bug in some games where the extension string is +copied into a fixed-size buffer without truncating. +If the extension string is too long, the buffer overrun can cause the game +to crash. +This is a work-around for that. <li>MESA_GLSL - <a href="shading.html#envvars">shading language compiler options</a> </ul> |