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st/wgl: Honour request of 3.1 contexts through core profile where available.

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Port 5f493eed69 from GLX.

Reviewed-by: Brian Paul <brianp@vmware.com>
This commit is contained in:
José Fonseca
2014-05-07 13:10:40 +01:00
parent 9701c6984d
commit aee501060b
1 changed files with 15 additions and 2 deletions
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src/gallium/state_trackers/wgl/stw_context.c
+15 -2
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@@ -205,10 +205,23 @@ stw_create_context_attribs(
*
* "The default value for WGL_CONTEXT_PROFILE_MASK_ARB is
* WGL_CONTEXT_CORE_PROFILE_BIT_ARB."
*
* The spec also says:
*
* "If version 3.1 is requested, the context returned may implement
* any of the following versions:
*
* * Version 3.1. The GL_ARB_compatibility extension may or may not
* be implemented, as determined by the implementation.
* * The core profile of version 3.2 or greater."
*
* and because Mesa doesn't support GL_ARB_compatibility, the only chance to
* honour a 3.1 context is through core profile.
*/
attribs.profile = ST_PROFILE_DEFAULT;
if ((majorVersion > 3 || (majorVersion == 3 && minorVersion >= 2))
&& ((profileMask & WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB) == 0))
if (((majorVersion > 3 || (majorVersion == 3 && minorVersion >= 2))
&& ((profileMask & WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB) == 0)) ||
(majorVersion == 3 && minorVersion == 1))
attribs.profile = ST_PROFILE_OPENGL_CORE;
ctx->st = stw_dev->stapi->create_context(stw_dev->stapi,