X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgraphics%2Fwgl%2Fglcontext.cpp;h=6c378a6f195979a659b5a075bf3a5909b3008b12;hb=018da17591533b034d6bf018d2a9ac640007575e;hp=3df83f3119a294fa8472729d95e84451957881a6;hpb=213ca43656411a06bbf1c0d18e4ebacaf545eb34;p=libs%2Fgui.git

diff --git a/source/graphics/wgl/glcontext.cpp b/source/graphics/wgl/glcontext.cpp
index 3df83f3..6c378a6 100644
--- a/source/graphics/wgl/glcontext.cpp
+++ b/source/graphics/wgl/glcontext.cpp
@@ -42,7 +42,34 @@ void GLContext::platform_init(const GLOptions &opts)
 	SetPixelFormat(dc, pf_index, &pfd);
 
 	priv = new Private;
-	priv->context = wglCreateContext(dc);
+	if(opts.forward_compatible || opts.gl_version_major)
+	{
+		PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs = reinterpret_cast<PFNWGLCREATECONTEXTATTRIBSARBPROC>(wglGetProcAddress("wglCreateContextAttribs"));
+		if(!wglCreateContextAttribs)
+			throw unsupported_gl_mode(opts);
+
+		vector<int> ctx_attribs;
+
+		if(opts.forward_compatible)
+		{
+			ctx_attribs.push_back(WGL_CONTEXT_FLAGS_ARB);
+			ctx_attribs.push_back(WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB);
+		}
+
+		if(opts.gl_version_major)
+		{
+			ctx_attribs.push_back(WGL_CONTEXT_MAJOR_VERSION_ARB);
+			ctx_attribs.push_back(opts.gl_version_major);
+			ctx_attribs.push_back(WGL_CONTEXT_MINOR_VERSION_ARB);
+			ctx_attribs.push_back(opts.gl_version_minor);
+		}
+
+		ctx_attribs.push_back(0);
+
+		priv->context = wglCreateContextAttribs(dc, 0, &ctx_attribs[0]);
+	}
+	else
+		priv->context = wglCreateContext(dc);
 	wglMakeCurrent(dc, priv->context);
 
 	ReleaseDC(window.get_private().window, dc);