+#include <vector>
#include <windows.h>
#include <GL/gl.h>
#include <GL/wglext.h>
using namespace std;
+namespace {
+
+template<typename T>
+T get_proc(const char *name)
+{
+ return reinterpret_cast<T>(reinterpret_cast<void *>(wglGetProcAddress(name)));
+}
+
+}
+
namespace Msp {
namespace Graphics {
priv = new Private;
if(opts.forward_compatible || opts.gl_version_major)
{
- PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs = reinterpret_cast<PFNWGLCREATECONTEXTATTRIBSARBPROC>(wglGetProcAddress("wglCreateContextAttribs"));
+ ContextHandle fake_context = wglCreateContext(dc);
+ wglMakeCurrent(dc, fake_context);
+
+ PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribs = get_proc<PFNWGLCREATECONTEXTATTRIBSARBPROC>("wglCreateContextAttribsARB");
if(!wglCreateContextAttribs)
throw unsupported_gl_mode(opts);
ctx_attribs.push_back(WGL_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB);
}
+ if(opts.core_profile)
+ {
+ ctx_attribs.push_back(WGL_CONTEXT_PROFILE_MASK_ARB);
+ ctx_attribs.push_back(WGL_CONTEXT_CORE_PROFILE_BIT_ARB);
+ }
+
if(opts.gl_version_major)
{
ctx_attribs.push_back(WGL_CONTEXT_MAJOR_VERSION_ARB);
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);
void GLContext::set_swap_interval(unsigned i)
{
- PFNWGLSWAPINTERVALEXTPROC wglSwapInterval = reinterpret_cast<PFNWGLSWAPINTERVALEXTPROC>(wglGetProcAddress("wglSwapIntervalEXT"));
+ PFNWGLSWAPINTERVALEXTPROC wglSwapInterval = get_proc<PFNWGLSWAPINTERVALEXTPROC>("wglSwapIntervalEXT");
if(!wglSwapInterval)
throw runtime_error("wglSwapIntervalEXT not found");
wglSwapInterval(i);