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- allow OpenGL 3.0 MESA drivers to use vid_glswfb

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This commit is contained in:
Rachael Alexanderson 2017-09-12 08:18:22 -04:00
parent d0fbdd1314
commit 79fc219afd
2 changed files with 3 additions and 6 deletions
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4
src/gl/system/gl_interface.cpp
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@ -43,6 +43,7 @@ static TArray<FString> m_Extensions;
RenderContext gl;
EXTERN_CVAR(Bool, gl_legacy_mode)
EXTERN_CVAR(Bool, vid_glswfb)
//==========================================================================
//
@ -207,7 +208,8 @@ void gl_LoadExtensions()
// The minimum requirement for the modern render path is GL 3.3.
// Although some GL 3.1 or 3.2 solutions may theoretically work they are usually too broken or too slow.
if (gl_version < 3.3f)
// unless, of course, we're simply using this as a software backend...
if (gl_version < 3.3f && (!vid_glswfb || gl_version < 3.0f))
{
gl.legacyMode = true;
gl.lightmethod = LM_LEGACY;

5
src/gl/system/gl_swframebuffer.cpp
View file

@ -200,12 +200,7 @@ OpenGLSWFrameBuffer::OpenGLSWFrameBuffer(void *hMonitor, int width, int height,
bool isGLES = (glversion && strlen(glversion) > 10 && memcmp(glversion, "OpenGL ES ", 10) == 0);
UCVarValue value;
// GL 3.0 is mostly broken on MESA drivers which really are the only relevant case here that doesn't fulfill the requirements based on version number alone.
#ifdef _WIN32
value.Bool = !ogl_IsVersionGEQ(3, 0);
#else
value.Bool = !ogl_IsVersionGEQ(3, 1);
#endif
gl_legacy_mode.ForceSet (value, CVAR_Bool);
if (!isGLES && ogl_IsVersionGEQ(3, 0) == 0)