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- Fall back to D3D for software on systems without GL2 support.

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drfrag 2019-08-13 22:04:05 +02:00
parent 9f0d5ac113
commit b3c4e24b58
1 changed files with 3 additions and 1 deletions
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4
src/gl/system/gl_interface.cpp
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@ -46,6 +46,7 @@ static double realglversion; // this is public so the statistics code can access
EXTERN_CVAR(Bool, gl_legacy_mode)
extern int currentrenderer;
EXTERN_CVAR(Int, vid_renderer);
EXTERN_CVAR(Bool, vid_glswfb);
CVAR(Bool, gl_riskymodernpath, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
//==========================================================================
@ -192,9 +193,10 @@ void gl_LoadExtensions()
if ((gl_version < 2.0f || !CheckExtension("GL_EXT_framebuffer_object")) && gl_version < 3.0f)
{
vid_renderer = 0;
vid_glswfb = 0;
I_FatalError("Unsupported OpenGL version.\nAt least OpenGL 2.0 with framebuffer support is required to run " GAMENAME ".\nFalling back to software renderer.\n");
}
gl.es = false;
// add 0.01 to account for roundoff errors making the number a tad smaller than the actual version