Differential D7392 Diff 23612 intern/ghost/intern/GHOST_WindowWin32.cpp

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intern/ghost/intern/GHOST_WindowWin32.cpp

Show First 20 Lines • Show All 1,066 Lines • ▼ Show 20 Lines	if (m_wintab.open && m_wintab.info && m_wintab.queueSizeGet && m_wintab.queueSizeSet &&
}		}

// The Wintab spec says we must open the context disabled if we are using cursor masks.		// The Wintab spec says we must open the context disabled if we are using cursor masks.
m_wintab.context = m_wintab.open(m_hWnd, &lc, FALSE);		m_wintab.context = m_wintab.open(m_hWnd, &lc, FALSE);

// Wintab provides no way to determine the maximum queue size aside from checking if attempts		// Wintab provides no way to determine the maximum queue size aside from checking if attempts
// to change the queue size are successful.		// to change the queue size are successful.
const int maxQueue = 500;		const int maxQueue = 500;
int initialQueueSize = m_wintab.queueSizeGet(m_wintab.context);		int queueSize = m_wintab.queueSizeGet(m_wintab.context);
int queueSize = initialQueueSize;

while (queueSize < maxQueue) {		while (queueSize < maxQueue) {
int testSize = min(queueSize + initialQueueSize, maxQueue);		int testSize = min(queueSize + 16, maxQueue);
if (m_wintab.queueSizeSet(m_wintab.context, testSize)) {		if (m_wintab.queueSizeSet(m_wintab.context, testSize)) {
queueSize = testSize;		queueSize = testSize;
}		}
else {		else {
/* From Windows Wintab Documentation for WTQueueSizeSet:		/* From Windows Wintab Documentation for WTQueueSizeSet:
* "If the return value is zero, the context has no queue because the function deletes the		* "If the return value is zero, the context has no queue because the function deletes the
* original queue before attempting to create a new one. The application must continue		* original queue before attempting to create a new one. The application must continue
* calling the function with a smaller queue size until the function returns a non - zero		* calling the function with a smaller queue size until the function returns a non - zero
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