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added test for ARB GLSL extensions

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This commit is contained in:
Corbin Simpson 2008-08-16 11:07:51 -06:00 • committed by Brian Paul
parent 5d762e1613
commit 567d87744a
1 changed files with 9 additions and 6 deletions
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15
progs/util/shaderutil.c
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@ -27,12 +27,15 @@ Init(void)
GLboolean
ShadersSupported(void)
{
const char *version;
version = (const char *) glGetString(GL_VERSION);
if (version[0] != '2' || version[1] != '.') {
printf("GL_RENDERER = %s\n",(const char *) glGetString(GL_RENDERER));
return GL_FALSE;
const char *version = (const char *) glGetString(GL_VERSION);
if (version[0] == '2' && version[1] == '.') {
return GL_TRUE;
}
else if (glutExtensionSupported("GL_ARB_vertex_shader")
&& glutExtensionSupported("GL_ARB_fragment_shader")
&& glutExtensionSupported("GL_ARB_shader_objects")) {
fprintf(stderr, "Warning: Trying ARB GLSL instead of OpenGL 2.x. This may not work.\n");
return GL_TRUE;
}
return GL_TRUE;
}