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Windows: Request a core profile by default.

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Also, update to OpenGL 4.6.
This commit is contained in:
Unknown W. Brackets 2017-11-12 23:06:22 -08:00
parent 66832d2180
commit c30e4a9382
1 changed files with 23 additions and 20 deletions
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43
Windows/GPU/WindowsGLContext.cpp
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@ -253,47 +253,50 @@ bool WindowsGLContext::Init(HINSTANCE hInst, HWND window, std::string *error_mes
// Some core profile drivers elide certain extensions from GL_EXTENSIONS/etc.
// glewExperimental allows us to force GLEW to search for the pointers anyway.
if (gl_extensions.IsCoreContext)
glewExperimental = true;
glewExperimental = true;
if (GLEW_OK != glewInit()) {
*error_message = "Failed to initialize GLEW.";
return false;
}
// Unfortunately, glew will generate an invalid enum error, ignore.
if (gl_extensions.IsCoreContext)
glGetError();
glGetError();
int contextFlags = g_Config.bGfxDebugOutput ? WGL_CONTEXT_DEBUG_BIT_ARB : 0;
HGLRC m_hrc = NULL;
HGLRC m_hrc = nullptr;
// Alright, now for the modernity. First try a 4.4, then 4.3, context, if that fails try 3.3.
// I can't seem to find a way that lets you simply request the newest version available.
if (wglewIsSupported("WGL_ARB_create_context") == 1) {
for (int minor = 5; minor >= 0 && m_hrc == NULL; --minor) {
const int attribs4x[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
WGL_CONTEXT_MINOR_VERSION_ARB, minor,
for (int tryCore = 1; tryCore >= 0 && m_hrc == nullptr; --tryCore) {
SetGLCoreContext(tryCore == 1);
for (int minor = 6; minor >= 0 && m_hrc == nullptr; --minor) {
const int attribs4x[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 4,
WGL_CONTEXT_MINOR_VERSION_ARB, minor,
WGL_CONTEXT_FLAGS_ARB, contextFlags,
WGL_CONTEXT_PROFILE_MASK_ARB, gl_extensions.IsCoreContext ? WGL_CONTEXT_CORE_PROFILE_BIT_ARB : WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0
};
m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs4x);
}
const int attribs33[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
WGL_CONTEXT_MINOR_VERSION_ARB, 3,
WGL_CONTEXT_FLAGS_ARB, contextFlags,
WGL_CONTEXT_PROFILE_MASK_ARB, gl_extensions.IsCoreContext ? WGL_CONTEXT_CORE_PROFILE_BIT_ARB : WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0
};
m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs4x);
if (!m_hrc)
m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs33);
}
const int attribs33[] = {
WGL_CONTEXT_MAJOR_VERSION_ARB, 3,
WGL_CONTEXT_MINOR_VERSION_ARB, 3,
WGL_CONTEXT_FLAGS_ARB, contextFlags,
WGL_CONTEXT_PROFILE_MASK_ARB, gl_extensions.IsCoreContext ? WGL_CONTEXT_CORE_PROFILE_BIT_ARB : WGL_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0
};
if (!m_hrc)
m_hrc = wglCreateContextAttribsARB(hDC, 0, attribs33);
if (!m_hrc) {
// Fall back
m_hrc = hRC;
} else {
// Switch to the new ARB context.
wglMakeCurrent(NULL, NULL);
wglMakeCurrent(nullptr, nullptr);
wglDeleteContext(hRC);
wglMakeCurrent(hDC, m_hrc);
}