forked from bartvdbraak/blender
Windows: refactor GHOST wintab handling.
This is backporting a change from 2.8, which may help solve crashes when activating a window. Previously bringTabletContextToFront() would call tablet API functions with NULL tablet, which may crash on some drivers. Ref T60811.
This commit is contained in:
parent
fccf506ed7
commit
6fdc688cd0
@ -79,15 +79,17 @@ GHOST_WindowWin32::GHOST_WindowWin32(GHOST_SystemWin32 *system,
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m_nPressedButtons(0),
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m_customCursor(0),
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m_wantAlphaBackground(alphaBackground),
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m_wintab(NULL),
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m_tabletData(NULL),
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m_tablet(0),
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m_maxPressure(0),
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m_normal_state(GHOST_kWindowStateNormal),
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m_user32(NULL),
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m_parentWindowHwnd(parentwindowhwnd),
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m_debug_context(is_debug)
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{
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// Initialize tablet variables
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memset(&m_wintab, 0, sizeof(m_wintab));
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memset(&m_tabletData, 0, sizeof(m_tabletData));
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m_tabletData.Active = GHOST_kTabletModeNone;
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// Create window
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if (state != GHOST_kWindowStateFullScreen) {
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RECT rect;
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MONITORINFO monitor;
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@ -274,16 +276,22 @@ GHOST_WindowWin32::GHOST_WindowWin32(GHOST_SystemWin32 *system,
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RegisterRawInputDevices(&device, 1, sizeof(device));
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}
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m_wintab = ::LoadLibrary("Wintab32.dll");
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if (m_wintab) {
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GHOST_WIN32_WTInfo fpWTInfo = (GHOST_WIN32_WTInfo) ::GetProcAddress(m_wintab, "WTInfoA");
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GHOST_WIN32_WTOpen fpWTOpen = (GHOST_WIN32_WTOpen) ::GetProcAddress(m_wintab, "WTOpenA");
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// Initialize Wintab
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m_wintab.handle = ::LoadLibrary("Wintab32.dll");
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if (m_wintab.handle) {
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// Get API functions
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m_wintab.info = (GHOST_WIN32_WTInfo) ::GetProcAddress(m_wintab.handle, "WTInfoA");
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m_wintab.open = (GHOST_WIN32_WTOpen) ::GetProcAddress(m_wintab.handle, "WTOpenA");
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m_wintab.close = (GHOST_WIN32_WTClose) ::GetProcAddress(m_wintab.handle, "WTClose");
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m_wintab.packet = (GHOST_WIN32_WTPacket) ::GetProcAddress(m_wintab.handle, "WTPacket");
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m_wintab.enable = (GHOST_WIN32_WTEnable) ::GetProcAddress(m_wintab.handle, "WTEnable");
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m_wintab.overlap = (GHOST_WIN32_WTOverlap) ::GetProcAddress(m_wintab.handle, "WTOverlap");
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// Let's see if we can initialize tablet here.
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// Check if WinTab available by getting system context info.
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LOGCONTEXT lc = { 0 };
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lc.lcOptions |= CXO_SYSTEM;
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if (fpWTInfo && fpWTInfo(WTI_DEFSYSCTX, 0, &lc)) {
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if (m_wintab.open && m_wintab.info && m_wintab.info(WTI_DEFSYSCTX, 0, &lc)) {
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// Now init the tablet
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/* The maximum tablet size, pressure and orientation (tilt) */
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AXIS TabletX, TabletY, Pressure, Orientation[3];
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@ -297,42 +305,34 @@ GHOST_WindowWin32::GHOST_WindowWin32(GHOST_SystemWin32 *system,
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lc.lcMoveMask = PACKETDATA;
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/* Set the entire tablet as active */
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fpWTInfo(WTI_DEVICES, DVC_X, &TabletX);
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fpWTInfo(WTI_DEVICES, DVC_Y, &TabletY);
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m_wintab.info(WTI_DEVICES, DVC_X, &TabletX);
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m_wintab.info(WTI_DEVICES, DVC_Y, &TabletY);
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/* get the max pressure, to divide into a float */
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BOOL pressureSupport = fpWTInfo(WTI_DEVICES, DVC_NPRESSURE, &Pressure);
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BOOL pressureSupport = m_wintab.info(WTI_DEVICES, DVC_NPRESSURE, &Pressure);
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if (pressureSupport)
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m_maxPressure = Pressure.axMax;
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m_wintab.maxPressure = Pressure.axMax;
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else
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m_maxPressure = 0;
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m_wintab.maxPressure = 0;
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/* get the max tilt axes, to divide into floats */
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BOOL tiltSupport = fpWTInfo(WTI_DEVICES, DVC_ORIENTATION, &Orientation);
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BOOL tiltSupport = m_wintab.info(WTI_DEVICES, DVC_ORIENTATION, &Orientation);
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if (tiltSupport) {
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/* does the tablet support azimuth ([0]) and altitude ([1]) */
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if (Orientation[0].axResolution && Orientation[1].axResolution) {
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/* all this assumes the minimum is 0 */
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m_maxAzimuth = Orientation[0].axMax;
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m_maxAltitude = Orientation[1].axMax;
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m_wintab.maxAzimuth = Orientation[0].axMax;
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m_wintab.maxAltitude = Orientation[1].axMax;
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}
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else { /* no so dont do tilt stuff */
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m_maxAzimuth = m_maxAltitude = 0;
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m_wintab.maxAzimuth = m_wintab.maxAltitude = 0;
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}
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}
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if (fpWTOpen) {
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// The Wintab spec says we must open the context disabled if we are using cursor masks.
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m_tablet = fpWTOpen(m_hWnd, &lc, FALSE);
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if (m_tablet) {
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m_tabletData = new GHOST_TabletData();
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m_tabletData->Active = GHOST_kTabletModeNone;
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}
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GHOST_WIN32_WTEnable fpWTEnable = (GHOST_WIN32_WTEnable) ::GetProcAddress(m_wintab, "WTEnable");
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if (fpWTEnable) {
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fpWTEnable(m_tablet, TRUE);
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}
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// The Wintab spec says we must open the context disabled if we are using cursor masks.
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m_wintab.tablet = m_wintab.open(m_hWnd, &lc, FALSE);
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if (m_wintab.enable && m_wintab.tablet) {
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m_wintab.enable(m_wintab.tablet, TRUE);
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}
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}
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}
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@ -347,14 +347,13 @@ GHOST_WindowWin32::~GHOST_WindowWin32()
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m_Bar->Release();
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}
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if (m_wintab) {
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GHOST_WIN32_WTClose fpWTClose = (GHOST_WIN32_WTClose) ::GetProcAddress(m_wintab, "WTClose");
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if (fpWTClose) {
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if (m_tablet)
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fpWTClose(m_tablet);
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delete m_tabletData;
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m_tabletData = NULL;
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if (m_wintab.handle) {
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if (m_wintab.close && m_wintab.tablet) {
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m_wintab.close(m_wintab.tablet);
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}
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FreeLibrary(m_wintab.handle);
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memset(&m_wintab, 0, sizeof(m_wintab));
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}
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if (m_customCursor) {
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@ -883,118 +882,103 @@ GHOST_TSuccess GHOST_WindowWin32::setWindowCursorShape(GHOST_TStandardCursor cur
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void GHOST_WindowWin32::processWin32TabletActivateEvent(WORD state)
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{
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if (!m_tablet) {
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return;
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}
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if (m_wintab.enable && m_wintab.tablet) {
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m_wintab.enable(m_wintab.tablet, state);
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GHOST_WIN32_WTEnable fpWTEnable = (GHOST_WIN32_WTEnable) ::GetProcAddress(m_wintab, "WTEnable");
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GHOST_WIN32_WTOverlap fpWTOverlap = (GHOST_WIN32_WTOverlap) ::GetProcAddress(m_wintab, "WTOverlap");
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if (fpWTEnable) {
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fpWTEnable(m_tablet, state);
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if (fpWTOverlap && state) {
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fpWTOverlap(m_tablet, TRUE);
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if (m_wintab.overlap && state) {
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m_wintab.overlap(m_wintab.tablet, TRUE);
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}
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}
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}
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void GHOST_WindowWin32::processWin32TabletInitEvent()
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{
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if (m_wintab && m_tabletData) {
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GHOST_WIN32_WTInfo fpWTInfo = (GHOST_WIN32_WTInfo) ::GetProcAddress(m_wintab, "WTInfoA");
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// Let's see if we can initialize tablet here
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if (m_wintab.info && m_wintab.tablet) {
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AXIS Pressure, Orientation[3]; /* The maximum tablet size */
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// let's see if we can initialize tablet here
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/* check if WinTab available. */
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if (fpWTInfo) {
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AXIS Pressure, Orientation[3]; /* The maximum tablet size */
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BOOL pressureSupport = m_wintab.info(WTI_DEVICES, DVC_NPRESSURE, &Pressure);
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if (pressureSupport)
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m_wintab.maxPressure = Pressure.axMax;
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else
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m_wintab.maxPressure = 0;
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BOOL pressureSupport = fpWTInfo(WTI_DEVICES, DVC_NPRESSURE, &Pressure);
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if (pressureSupport)
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m_maxPressure = Pressure.axMax;
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else
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m_maxPressure = 0;
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BOOL tiltSupport = fpWTInfo(WTI_DEVICES, DVC_ORIENTATION, &Orientation);
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if (tiltSupport) {
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/* does the tablet support azimuth ([0]) and altitude ([1]) */
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if (Orientation[0].axResolution && Orientation[1].axResolution) {
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m_maxAzimuth = Orientation[0].axMax;
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m_maxAltitude = Orientation[1].axMax;
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}
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else { /* no so dont do tilt stuff */
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m_maxAzimuth = m_maxAltitude = 0;
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}
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BOOL tiltSupport = m_wintab.info(WTI_DEVICES, DVC_ORIENTATION, &Orientation);
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if (tiltSupport) {
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/* does the tablet support azimuth ([0]) and altitude ([1]) */
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if (Orientation[0].axResolution && Orientation[1].axResolution) {
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m_wintab.maxAzimuth = Orientation[0].axMax;
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m_wintab.maxAltitude = Orientation[1].axMax;
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}
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else { /* no so dont do tilt stuff */
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m_wintab.maxAzimuth = m_wintab.maxAltitude = 0;
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}
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m_tabletData->Active = GHOST_kTabletModeNone;
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}
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m_tabletData.Active = GHOST_kTabletModeNone;
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}
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}
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void GHOST_WindowWin32::processWin32TabletEvent(WPARAM wParam, LPARAM lParam)
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{
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PACKET pkt;
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if (m_wintab) {
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GHOST_WIN32_WTPacket fpWTPacket = (GHOST_WIN32_WTPacket) ::GetProcAddress(m_wintab, "WTPacket");
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if (fpWTPacket) {
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if (fpWTPacket((HCTX)lParam, wParam, &pkt)) {
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if (m_tabletData) {
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switch (pkt.pkCursor % 3) { /* % 3 for multiple devices ("DualTrack") */
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case 0:
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m_tabletData->Active = GHOST_kTabletModeNone; /* puck - not yet supported */
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break;
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case 1:
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m_tabletData->Active = GHOST_kTabletModeStylus; /* stylus */
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break;
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case 2:
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m_tabletData->Active = GHOST_kTabletModeEraser; /* eraser */
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break;
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}
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if (m_maxPressure > 0) {
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m_tabletData->Pressure = (float)pkt.pkNormalPressure / (float)m_maxPressure;
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}
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else {
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m_tabletData->Pressure = 1.0f;
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}
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if (m_wintab.packet && m_wintab.tablet) {
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PACKET pkt;
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if (m_wintab.packet((HCTX)lParam, wParam, &pkt)) {
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switch (pkt.pkCursor % 3) { /* % 3 for multiple devices ("DualTrack") */
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case 0:
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m_tabletData.Active = GHOST_kTabletModeNone; /* puck - not yet supported */
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break;
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case 1:
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m_tabletData.Active = GHOST_kTabletModeStylus; /* stylus */
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break;
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case 2:
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m_tabletData.Active = GHOST_kTabletModeEraser; /* eraser */
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break;
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}
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if ((m_maxAzimuth > 0) && (m_maxAltitude > 0)) {
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ORIENTATION ort = pkt.pkOrientation;
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float vecLen;
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float altRad, azmRad; /* in radians */
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if (m_wintab.maxPressure > 0) {
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m_tabletData.Pressure = (float)pkt.pkNormalPressure / (float)m_wintab.maxPressure;
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}
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else {
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m_tabletData.Pressure = 1.0f;
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}
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/*
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* from the wintab spec:
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* orAzimuth Specifies the clockwise rotation of the
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* cursor about the z axis through a full circular range.
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*
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* orAltitude Specifies the angle with the x-y plane
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* through a signed, semicircular range. Positive values
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* specify an angle upward toward the positive z axis;
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* negative values specify an angle downward toward the negative z axis.
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*
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* wintab.h defines .orAltitude as a UINT but documents .orAltitude
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* as positive for upward angles and negative for downward angles.
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* WACOM uses negative altitude values to show that the pen is inverted;
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* therefore we cast .orAltitude as an (int) and then use the absolute value.
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*/
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if ((m_wintab.maxAzimuth > 0) && (m_wintab.maxAltitude > 0)) {
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ORIENTATION ort = pkt.pkOrientation;
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float vecLen;
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float altRad, azmRad; /* in radians */
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/* convert raw fixed point data to radians */
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altRad = (float)((fabs((float)ort.orAltitude) / (float)m_maxAltitude) * M_PI / 2.0);
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azmRad = (float)(((float)ort.orAzimuth / (float)m_maxAzimuth) * M_PI * 2.0);
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/*
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* from the wintab spec:
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* orAzimuth Specifies the clockwise rotation of the
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* cursor about the z axis through a full circular range.
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*
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* orAltitude Specifies the angle with the x-y plane
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* through a signed, semicircular range. Positive values
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* specify an angle upward toward the positive z axis;
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* negative values specify an angle downward toward the negative z axis.
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*
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* wintab.h defines .orAltitude as a UINT but documents .orAltitude
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* as positive for upward angles and negative for downward angles.
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* WACOM uses negative altitude values to show that the pen is inverted;
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* therefore we cast .orAltitude as an (int) and then use the absolute value.
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*/
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/* find length of the stylus' projected vector on the XY plane */
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vecLen = cos(altRad);
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/* convert raw fixed point data to radians */
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altRad = (float)((fabs((float)ort.orAltitude) / (float)m_wintab.maxAltitude) * M_PI / 2.0);
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azmRad = (float)(((float)ort.orAzimuth / (float)m_wintab.maxAzimuth) * M_PI * 2.0);
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/* from there calculate X and Y components based on azimuth */
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m_tabletData->Xtilt = sin(azmRad) * vecLen;
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m_tabletData->Ytilt = (float)(sin(M_PI / 2.0 - azmRad) * vecLen);
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/* find length of the stylus' projected vector on the XY plane */
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vecLen = cos(altRad);
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}
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else {
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m_tabletData->Xtilt = 0.0f;
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m_tabletData->Ytilt = 0.0f;
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}
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}
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/* from there calculate X and Y components based on azimuth */
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m_tabletData.Xtilt = sin(azmRad) * vecLen;
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m_tabletData.Ytilt = (float)(sin(M_PI / 2.0 - azmRad) * vecLen);
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}
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else {
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m_tabletData.Xtilt = 0.0f;
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m_tabletData.Ytilt = 0.0f;
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}
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}
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}
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@ -1002,11 +986,8 @@ void GHOST_WindowWin32::processWin32TabletEvent(WPARAM wParam, LPARAM lParam)
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void GHOST_WindowWin32::bringTabletContextToFront()
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{
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if (m_wintab) {
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GHOST_WIN32_WTOverlap fpWTOverlap = (GHOST_WIN32_WTOverlap) ::GetProcAddress(m_wintab, "WTOverlap");
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if (fpWTOverlap) {
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fpWTOverlap(m_tablet, TRUE);
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}
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if (m_wintab.overlap && m_wintab.tablet) {
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m_wintab.overlap(m_wintab.tablet, TRUE);
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}
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}
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@ -242,7 +242,7 @@ public:
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const GHOST_TabletData *GetTabletData()
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{
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return m_tabletData;
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return &m_tabletData;
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}
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void processWin32TabletActivateEvent(WORD state);
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@ -343,16 +343,27 @@ private:
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static const wchar_t *s_windowClassName;
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static const int s_maxTitleLength;
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/** WinTab dll handle */
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HMODULE m_wintab;
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/** Tablet data for GHOST */
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GHOST_TabletData *m_tabletData;
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GHOST_TabletData m_tabletData;
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/** Stores the Tablet context if detected Tablet features using WinTab.dll */
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HCTX m_tablet;
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LONG m_maxPressure;
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LONG m_maxAzimuth, m_maxAltitude;
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/* Wintab API */
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struct {
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/** WinTab dll handle */
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HMODULE handle;
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/** API functions */
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GHOST_WIN32_WTInfo info;
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GHOST_WIN32_WTOpen open;
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GHOST_WIN32_WTClose close;
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GHOST_WIN32_WTPacket packet;
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GHOST_WIN32_WTEnable enable;
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GHOST_WIN32_WTOverlap overlap;
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/** Stores the Tablet context if detected Tablet features using WinTab.dll */
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HCTX tablet;
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LONG maxPressure;
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LONG maxAzimuth, maxAltitude;
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} m_wintab;
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GHOST_TWindowState m_normal_state;
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