diff options
Diffstat (limited to 'mesalib/docs/envvars.html')
| -rw-r--r-- | mesalib/docs/envvars.html | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/mesalib/docs/envvars.html b/mesalib/docs/envvars.html index 49c9025da..5d855c630 100644 --- a/mesalib/docs/envvars.html +++ b/mesalib/docs/envvars.html @@ -69,9 +69,25 @@ 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_GL_VERSION_OVERRIDE - changes the value returned by -glGetString(GL_VERSION). Valid values are point-separated version numbers, -such as "3.0". Mesa will not really implement all the features of the given -version if it's higher than what's normally reported. +glGetString(GL_VERSION) and possibly the GL API type. +<ul> +<li> The format should be MAJOR.MINOR[FC] +<li> FC is an optional suffix that indicates a forward compatible context. +This is only valid for versions >= 3.0. +<li> GL versions < 3.0 are set to a compatibility (non-Core) profile +<li> GL versions = 3.0, see below +<li> GL versions > 3.0 are set to a Core profile +<li> Examples: 2.1, 3.0, 3.0FC, 3.1, 3.1FC +<ul> +<li> 2.1 - select a compatibility (non-Core) profile with GL version 2.1 +<li> 3.0 - select a compatibility (non-Core) profile with GL version 3.0 +<li> 3.0FC - select a Core+Forward Compatible profile with GL version 3.0 +<li> 3.1 - select a Core profile with GL version 3.1 +<li> 3.1FC - select a Core+Forward Compatible profile with GL version 3.1 +</ul> +<li> Mesa may not really implement all the features of the given version. +(for developers only) +</ul> <li>MESA_GLSL_VERSION_OVERRIDE - changes the value returned by glGetString(GL_SHADING_LANGUAGE_VERSION). Valid values are integers, such as "130". Mesa will not really implement all the features of the given language version |