void SimpleGLWindow::Initialize(u32 flags) {
RECT rect;
GetWindowRect(hWnd_, &rect);
SetFlags(flags);
SetupGL();
ResizeGL(rect.right-rect.left,rect.bottom-rect.top);
CreateProgram();
GenerateChecker();
}
void wxCoreGLCanvas::OnSize(wxSizeEvent& event)
{
# ifdef __WXGTK__
if(false == mPainted)
{
return;
}
# endif
//this is also necessary to update the context on some platforms
event.Skip();
ResizeGL();
SetDirty();
}
void WindowsHeadlessHost::InitGL()
{
glOkay = false;
hWnd = CreateHiddenWindow();
if (WINDOW_VISIBLE)
{
ShowWindow(hWnd, TRUE);
SetFocus(hWnd);
}
int pixelFormat;
static PIXELFORMATDESCRIPTOR pfd = {0};
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 32;
pfd.cDepthBits = 16;
pfd.iLayerType = PFD_MAIN_PLANE;
#define ENFORCE(x, msg) { if (!(x)) { fprintf(stderr, msg); return; } }
ENFORCE(hDC = GetDC(hWnd), "Unable to create DC.");
ENFORCE(pixelFormat = ChoosePixelFormat(hDC, &pfd), "Unable to match pixel format.");
ENFORCE(SetPixelFormat(hDC, pixelFormat, &pfd), "Unable to set pixel format.");
ENFORCE(hRC = wglCreateContext(hDC), "Unable to create GL context.");
ENFORCE(wglMakeCurrent(hDC, hRC), "Unable to activate GL context.");
SetVSync(0);
glewInit();
glstate.Initialize();
LoadNativeAssets();
if (ResizeGL())
glOkay = true;
}
int Create(){
GLuint PixelFormat;
WNDCLASS wc;
RECT WindowRect;
WindowRect.left = WindowRect.top = 0;
WindowRect.right = mWidth;
WindowRect.bottom = mHeight;
mInstance = GetModuleHandle(NULL);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC;
wc.lpfnWndProc = (WNDPROC)WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = mInstance;
wc.hIcon = LoadIcon(NULL, IDI_WINLOGO);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = NULL;
wc.lpszMenuName = NULL;
wc.lpszClassName = mClassName;
if(!RegisterClass(&wc)) return FALSE;
AdjustWindowRectEx(&WindowRect, WS_OVERLAPPEDWINDOW, FALSE, WS_EX_APPWINDOW | WS_EX_WINDOWEDGE);
mHWND = CreateWindowEx(WS_EX_APPWINDOW | WS_EX_WINDOWEDGE, mClassName, mTitle, WS_OVERLAPPEDWINDOW | WS_CLIPSIBLINGS | WS_CLIPCHILDREN, 0, 0, WindowRect.right - WindowRect.left, WindowRect.bottom - WindowRect.top, NULL, NULL, mInstance, (LPVOID)this);
if(!mHWND){
Destroy();
return FALSE;
}
static PIXELFORMATDESCRIPTOR pfd = {
sizeof(PIXELFORMATDESCRIPTOR),
1, PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_DOUBLEBUFFER, PFD_TYPE_RGBA,
32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 16, 0, 0, PFD_MAIN_PLANE, 0,0, 0, 0
};
mHDC = GetDC(mHWND);
if(!mHDC){
Destroy();
return FALSE;
}
PixelFormat = ChoosePixelFormat(mHDC, &pfd);
if(!PixelFormat){
Destroy();
return FALSE;
}
if(!SetPixelFormat(mHDC, PixelFormat, &pfd)){
Destroy();
return FALSE;
}
mHRC = wglCreateContext(mHDC);
if(!mHRC){
Destroy();
return FALSE;
}
if(!wglMakeCurrent(mHDC, mHRC)){
Destroy();
return FALSE;
}
ShowWindow(mHWND, SW_SHOW);
SetForegroundWindow(mHWND);
SetFocus(mHWND);
ResizeGL(mWidth, mHeight);
if(!InitGL()){
Destroy();
return FALSE;
}
mActive = TRUE;
return TRUE;
}
