Initial commit

libsst-wm/Win32/SST_WMEvent_Win32.c

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+/*
+	SST_WMEvent_Win32.c
+	Author: Patrick Baggett <ptbaggett@762studios.com>
+	Created: 6/5/2012
+
+	Purpose: 
+
+	Window event functions
+
+	License:
+
+	This program is free software. It comes without any warranty, to
+	the extent permitted by applicable law. You can redistribute it
+	and/or modify it under the terms of the Do What The Fuck You Want
+	To Public License, Version 2, as published by Sam Hocevar. See
+	http://sam.zoy.org/wtfpl/COPYING for more details.
+
+*/
+
+#include <SST/SST_WMEvent.h>
+#include "Win32Private.h"
+#include "../APIPrivate.h"
+static void copyAndRemoveUserEvent(SST_DisplayTarget_Win32* displayTarget, SST_WMEvent* eventReturn);
+
+/*************************************************************************/
+
+static int Win32_GetEvent(SST_DisplayTarget target, SST_WMEvent* eventReturn)
+{
+	MSG msg;
+	SST_DisplayTarget_Win32* displayTarget = (SST_DisplayTarget_Win32*)target;
+	SST_Window_Win32* win;
+	int found = 0;
+
+	/* First, get Win32 messages and dispatch to winproc. We
+	do this immediately, otherwise the OS thinks we've hung. */
+	while(PeekMessageA(&msg, NULL, 0, 0, PM_REMOVE))
+	{
+		TranslateMessage(&msg);
+		DispatchMessageA(&msg);	
+	}
+
+	/* Check for user events */
+	if(RemoveFromEQ(&displayTarget->userEventQueue, eventReturn))
+		return 1;
+
+	/* Now check each window's event queue */
+	win = displayTarget->firstWindow;
+	while(win)
+	{
+		if(RemoveFromEQ(&win->eventQueue, eventReturn))
+		{
+			found = 1;
+			break;
+		}
+
+		win = win->next;
+	}
+
+	return found;
+}
+
+/*************************************************************************/
+
+/* Platform-specific code dealing with user event queue */
+
+static void Win32_lockUserEventQueue(SST_DisplayTarget target)
+{
+	SST_DisplayTarget_Win32* displayTarget = (SST_DisplayTarget_Win32*)target;
+	EnterCriticalSection(&displayTarget->userEventLock);
+}
+
+static void Win32_unlockUserEventQueue(SST_DisplayTarget target)
+{
+	SST_DisplayTarget_Win32* displayTarget = (SST_DisplayTarget_Win32*)target;
+	LeaveCriticalSection(&displayTarget->userEventLock);
+}
+
+static EventQueue* Win32_getUserEventQueue(SST_DisplayTarget target)
+{
+
+	SST_DisplayTarget_Win32* displayTarget = (SST_DisplayTarget_Win32*)target;
+	return &displayTarget->userEventQueue; 
+}
+
+const struct SST_WM_EventFuncs Win32_EventFuncs = {
+	Win32_GetEvent,
+	Win32_getUserEventQueue,
+	Win32_lockUserEventQueue,
+	Win32_unlockUserEventQueue
+};