bool wxGLCanvas::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
const wxSize& size,
long style,
const wxString& name,
const int *attribList,
const wxPalette& WXUNUSED(palette))
{
m_needsUpdate = false;
m_macCanvasIsShown = false;
m_glFormat = WXGLChoosePixelFormat(attribList);
if ( !m_glFormat )
return false;
if ( !wxWindow::Create(parent, id, pos, size, style, name) )
return false;
m_dummyContext = WXGLCreateContext(m_glFormat, NULL);
static GLint gCurrentBufferName = 1;
m_bufferName = gCurrentBufferName++;
aglSetInteger (m_dummyContext, AGL_BUFFER_NAME, &m_bufferName);
AGLDrawable drawable = (AGLDrawable)GetWindowPort(MAC_WXHWND(MacGetTopLevelWindowRef()));
aglSetDrawable(m_dummyContext, drawable);
m_macCanvasIsShown = true;
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);
}
wxGLContext::wxGLContext(wxGLCanvas *win, const wxGLContext *other)
{
m_glContext = WXGLCreateContext(win->GetWXGLPixelFormat(),
other ? other->m_glContext : NULL);
}