LRESULT CALLBACK
window_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
GstGLWindowWin32 *window_win32;
LRESULT ret = 0;
if (uMsg == WM_CREATE) {
window_win32 =
GST_GL_WINDOW_WIN32 (((LPCREATESTRUCT) lParam)->lpCreateParams);
GST_TRACE ("WM_CREATE");
window_win32->device = GetDC (hWnd);
/* Do this, otherwise we hang on exit. We can still use it (due to the
* CS_OWNDC flag in the WindowClass) after we have Released.
*/
ReleaseDC (hWnd, window_win32->device);
SetProp (hWnd, "gl_window", window_win32);
} else if (GetProp (hWnd, "gl_window")) {
GstGLWindow *window;
GstGLContext *context;
GstGLContextClass *context_class;
window_win32 = GST_GL_WINDOW_WIN32 (GetProp (hWnd, "gl_window"));
window = GST_GL_WINDOW (window_win32);
context = gst_gl_window_get_context (window);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
g_assert (window_win32->internal_win_id == hWnd);
switch (uMsg) {
case WM_SIZE:
{
if (window->resize) {
window->resize (window->resize_data, LOWORD (lParam),
HIWORD (lParam));
}
break;
}
case WM_PAINT:
{
if (window->draw) {
PAINTSTRUCT ps;
BeginPaint (hWnd, &ps);
window->draw (window->draw_data);
context_class->swap_buffers (context);
EndPaint (hWnd, &ps);
}
break;
}
case WM_CLOSE:
{
ShowWindowAsync (window_win32->internal_win_id, SW_HIDE);
GST_TRACE ("WM_CLOSE");
if (window->close)
window->close (window->close_data);
break;
}
case WM_CAPTURECHANGED:
{
GST_DEBUG ("WM_CAPTURECHANGED");
if (window->draw)
window->draw (window->draw_data);
break;
}
case WM_ERASEBKGND:
{
ret = TRUE;
break;
}
default:
{
/* transmit messages to the parrent (ex: mouse/keyboard input) */
HWND parent_id = window_win32->parent_win_id;
if (parent_id)
PostMessage (parent_id, uMsg, wParam, lParam);
ret = DefWindowProc (hWnd, uMsg, wParam, lParam);
}
}
gst_object_unref (context);
} else {
ret = DefWindowProc (hWnd, uMsg, wParam, lParam);
}
return ret;
}
LRESULT CALLBACK
window_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
GstGLWindowWin32 *window_win32;
if (uMsg == WM_CREATE) {
window_win32 =
GST_GL_WINDOW_WIN32 (((LPCREATESTRUCT) lParam)->lpCreateParams);
GST_TRACE ("WM_CREATE");
window_win32->device = GetDC (hWnd);
/* Do this, otherwise we hang on exit. We can still use it (due to the
* CS_OWNDC flag in the WindowClass) after we have Released.
*/
ReleaseDC (hWnd, window_win32->device);
SetProp (hWnd, "gl_window", window_win32);
return 0;
} else if (GetProp (hWnd, "gl_window")) {
GstGLWindow *window;
GstGLContext *context;
GstGLContextClass *context_class;
window_win32 = GST_GL_WINDOW_WIN32 (GetProp (hWnd, "gl_window"));
window = GST_GL_WINDOW (window_win32);
context = gst_gl_window_get_context (window);
context_class = GST_GL_CONTEXT_GET_CLASS (context);
g_assert (window_win32->internal_win_id == hWnd);
switch (uMsg) {
case WM_SIZE:
{
if (window->resize) {
window->resize (window->resize_data, LOWORD (lParam),
HIWORD (lParam));
}
break;
}
case WM_PAINT:
{
if (window->draw) {
PAINTSTRUCT ps;
BeginPaint (hWnd, &ps);
window->draw (window->draw_data);
context_class->swap_buffers (context);
EndPaint (hWnd, &ps);
}
break;
}
case WM_CLOSE:
{
ShowWindowAsync (window_win32->internal_win_id, SW_HIDE);
GST_TRACE ("WM_CLOSE");
if (window->close)
window->close (window->close_data);
break;
}
case WM_GST_GL_WINDOW_QUIT:
{
HWND parent_id = 0;
GST_TRACE ("WM_GST_GL_WINDOW_QUIT");
parent_id = window_win32->parent_win_id;
if (parent_id) {
WNDPROC parent_proc = GetProp (parent_id, "gl_window_parent_proc");
g_assert (parent_proc);
SetWindowLongPtr (parent_id, GWLP_WNDPROC, (LONG_PTR) parent_proc);
SetParent (hWnd, NULL);
RemoveProp (parent_id, "gl_window_parent_proc");
}
window_win32->is_closed = TRUE;
RemoveProp (hWnd, "gl_window");
if (window_win32->internal_win_id) {
if (!DestroyWindow (window_win32->internal_win_id))
GST_WARNING ("failed to destroy window %" G_GUINTPTR_FORMAT
", 0x%x", (guintptr) hWnd, (unsigned int) GetLastError ());
}
PostQuitMessage (0);
break;
}
case WM_CAPTURECHANGED:
{
GST_DEBUG ("WM_CAPTURECHANGED");
if (window->draw)
window->draw (window->draw_data);
break;
}
case WM_GST_GL_WINDOW_CUSTOM:
{
if (!window_win32->is_closed) {
GstGLMessage *message = (GstGLMessage *) wParam;
_run_message (message);
}
break;
}
case WM_ERASEBKGND:
return TRUE;
default:
{
/* transmit messages to the parrent (ex: mouse/keyboard input) */
HWND parent_id = window_win32->parent_win_id;
if (parent_id)
PostMessage (parent_id, uMsg, wParam, lParam);
return DefWindowProc (hWnd, uMsg, wParam, lParam);
}
}
gst_object_unref (context);
return 0;
} else {
return DefWindowProc (hWnd, uMsg, wParam, lParam);
}
}