+#include <vector>
#include <windows.h>
#include <GL/gl.h>
+#include <GL/wglext.h>
#include "glcontext.h"
#include "window_private.h"
+using namespace std;
+
namespace Msp {
namespace Graphics {
};
-void GLContext::platform_init()
+void GLContext::platform_init(const GLOptions &opts)
{
- priv = new Private;
-
HDC dc = GetDC(window.get_private().window);
PIXELFORMATDESCRIPTOR pfd;
throw unsupported_gl_mode(opts);
SetPixelFormat(dc, pf_index, &pfd);
- priv->context = wglCreateContext(dc);
+ priv = new Private;
+ if(opts.forward_compatible || opts.gl_version_major)
+ {
+ ContextHandle fake_context = wglCreateContext(dc);
+ wglMakeCurrent(dc, fake_context);
+
+ PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs = reinterpret_cast<PFNWGLCREATECONTEXTATTRIBSARBPROC>(wglGetProcAddress("wglCreateContextAttribsARB"));
+ 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]);
+ if(!priv->context)
+ throw unsupported_gl_mode(opts);
+
+ wglMakeCurrent(0, 0);
+ wglDeleteContext(fake_context);
+ }
+ else
+ priv->context = wglCreateContext(dc);
wglMakeCurrent(dc, priv->context);
ReleaseDC(window.get_private().window, dc);
delete priv;
}
+void GLContext::set_swap_interval(unsigned i)
+{
+ PFNWGLSWAPINTERVALEXTPROC wglSwapInterval = reinterpret_cast<PFNWGLSWAPINTERVALEXTPROC>(wglGetProcAddress("wglSwapIntervalEXT"));
+ if(!wglSwapInterval)
+ throw runtime_error("wglSwapIntervalEXT not found");
+ wglSwapInterval(i);
+}
+
void GLContext::swap_buffers()
{
HDC dc = GetDC(window.get_private().window);
ReleaseDC(window.get_private().window, dc);
}
-void GLContext::window_resized(unsigned w, unsigned h)
-{
- glViewport(0, 0, w, h);
-}
+void GLContext::window_resized(unsigned, unsigned)
+{ }
} // namespace Graphics
} // namespace Msp