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- Detect dinosaur OpenGL and refuse to use it

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This commit is contained in:
Magnus Norddahl 2017-04-07 03:03:21 +02:00
parent 0376d4e8fc
commit a9591f57a6
1 changed files with 13 additions and 0 deletions
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13
src/gl/system/gl_swframebuffer.cpp
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@ -200,6 +200,19 @@ OpenGLSWFrameBuffer::OpenGLSWFrameBuffer(void *hMonitor, int width, int height,
return;
}
}
const char *glversion = (const char*)glGetString(GL_VERSION);
bool isGLES = (glversion && strlen(glversion) > 10 && memcmp(glversion, "OpenGL ES ", 10) == 0);
if (isGLES && ogl_IsVersionGEQ(2, 0) == 0)
{
Printf("OpenGL acceleration requires at least OpenGL ES 2.0. No Acceleration will be used.\n");
return;
}
else if (!isGLES && ogl_IsVersionGEQ(3, 0) == 0)
{
Printf("OpenGL acceleration requires at least OpenGL 3.0. No Acceleration will be used.\n");
return;
}
gl_LoadExtensions();
InitializeState();
if (first)