wxGLCanvas::~wxGLCanvas()
{
if ( m_glFormat )
WXGLDestroyPixelFormat(m_glFormat);
if ( m_dummyContext )
WXGLDestroyContext(m_dummyContext);
}
bool wxGLApp::InitGLVisual(const int *attribList)
{
WXGLPixelFormat fmt = WXGLChoosePixelFormat(attribList);
if ( !fmt )
return false;
WXGLDestroyPixelFormat(fmt);
return true;
}
/* static */
bool wxGLCanvasBase::IsDisplaySupported(const int *attribList)
{
WXGLPixelFormat glFormat = WXGLChoosePixelFormat(attribList);
if ( !glFormat )
return false;
WXGLDestroyPixelFormat(glFormat);
return true;
}
bool wxGLCanvasBase::IsExtensionSupported(const char *extension)
{
// we need a valid context to query for extensions.
WXGLPixelFormat fmt = WXGLChoosePixelFormat(NULL);
WXGLContext ctx = WXGLCreateContext(fmt, NULL);
if ( !ctx )
return false;
WXGLContext ctxOld = WXGLGetCurrentContext();
WXGLSetCurrentContext(ctx);
wxString extensions = wxString::FromAscii(glGetString(GL_EXTENSIONS));
WXGLSetCurrentContext(ctxOld);
WXGLDestroyPixelFormat(fmt);
WXGLDestroyContext(ctx);
return IsExtensionInList(extensions.ToAscii(), extension);
}