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Copied context property readback from 2.7.1.

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This commit is contained in:
Camilla Berglund 2011-07-27 18:20:15 +02:00
parent e4027f14d0
commit c233e005a8
1 changed files with 30 additions and 3 deletions
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33
src/opengl.c
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@ -354,9 +354,36 @@ GLboolean _glfwIsValidContext(_GLFWwindow* window, _GLFWwndconfig* wndconfig)
{
parseGLVersion(&window->glMajor, &window->glMinor, &window->glRevision);
// As these are hard constraints when non-zero, we can simply copy them
window->glProfile = wndconfig->glProfile;
window->glForward = wndconfig->glForward;
// Read back forward-compatibility flag
{
window->glForward = GL_FALSE;
if (window->glMajor >= 3)
{
GLint flags;
glGetIntegerv(GL_CONTEXT_FLAGS, &flags);
if (flags & GL_CONTEXT_FLAG_FORWARD_COMPATIBLE_BIT)
window->glForward = GL_TRUE;
}
}
// Read back OpenGL context profile
{
window->glProfile = 0;
if (window->glMajor > 3 || (window->glMajor == 3 && window->glMinor >= 2))
{
GLint mask;
glGetIntegerv(GL_CONTEXT_PROFILE_MASK, &mask);
if (mask & GL_CONTEXT_COMPATIBILITY_PROFILE_BIT)
window->glProfile = GLFW_OPENGL_COMPAT_PROFILE;
else if (mask & GL_CONTEXT_CORE_PROFILE_BIT)
window->glProfile = GLFW_OPENGL_CORE_PROFILE;
}
}
window->glRobustness = wndconfig->glRobustness;
if (window->glMajor < wndconfig->glMajor ||