void updateButtons(bool collectEvents)
{
DIDEVICEOBJECTDATA data[inputBufferSize];
DWORD inOut;
HRESULT hr;
RECT rect;
::GetClientRect(window, &rect);
bool ignoreClicks = mouseX < 0 || mouseX > rect.right || mouseY < 0 || mouseY > rect.bottom;
inOut = inputBufferSize;
hr = mouse->GetDeviceData(sizeof data[0], data, &inOut, 0);
switch(hr)
{
case DI_OK:
case DI_BUFFEROVERFLOW:
{
// Everything's ok: Update buttons and fire events.
for (unsigned i = 0; i < inOut; ++i)
{
bool down = (data[i].dwData & 0x80) != 0 && !ignoreClicks;
switch (data[i].dwOfs)
{
case DIMOFS_BUTTON0:
{
unsigned id = swapMouse ? msRight : msLeft;
setButton(id, down, collectEvents);
break;
}
case DIMOFS_BUTTON1:
{
unsigned id = swapMouse ? msLeft : msRight;
setButton(id, down, collectEvents);
break;
}
case DIMOFS_BUTTON2:
{
setButton(msMiddle, down, collectEvents);
break;
}
case DIMOFS_Z:
{
if (!collectEvents || data[i].dwData == 0)
break;
EventInfo event;
event.action = EventInfo::buttonDown;
if (int(data[i].dwData) < 0)
event.id = msWheelDown;
else
event.id = msWheelUp;
events.push_back(event);
event.action = EventInfo::buttonUp;
events.push_back(event);
break;
}
}
}
break;
}
case DIERR_NOTACQUIRED:
case DIERR_INPUTLOST:
{
// Cannot fetch new events: Release all buttons.
for (unsigned id = msRangeBegin; id < msRangeEnd; ++id)
setButton(id, false, collectEvents);
mouse->Acquire();
break;
}
}
keyboard:
inOut = inputBufferSize;
hr = keyboard->GetDeviceData(sizeof data[0], data, &inOut, 0);
switch (hr)
{
case DI_OK:
case DI_BUFFEROVERFLOW:
{
for (unsigned i = 0; i < inOut; ++i)
forceButton(data[i].dwOfs, (data[i].dwData & 0x80) != 0, collectEvents);
break;
}
case DIERR_NOTACQUIRED:
case DIERR_INPUTLOST:
{
for (unsigned id = kbRangeBegin; id < kbRangeEnd; ++id)
setButton(id, false, collectEvents);
keyboard->Acquire();
break;
}
}
boost::array<bool, gpNum> gpBuffer;
gpBuffer.assign(false);
for (unsigned gp = 0; gp < gamepads.size(); ++gp)
{
gamepads[gp]->Poll();
DIJOYSTATE joy;
hr = gamepads[gp]->GetDeviceState(sizeof joy, &joy);
switch (hr)
{
case DI_OK:
{
if (joy.lX < -stickThreshold)
gpBuffer[gpLeft - gpRangeBegin] = true;
else if (joy.lX > stickThreshold)
gpBuffer[gpRight - gpRangeBegin] = true;
if (joy.lY < -stickThreshold)
gpBuffer[gpUp - gpRangeBegin] = true;
else if (joy.lY > stickThreshold)
gpBuffer[gpDown - gpRangeBegin] = true;
for (unsigned id = gpButton0; id < gpRangeEnd; ++id)
if (joy.rgbButtons[id - gpButton0])
gpBuffer[id - gpRangeBegin] = true;
break;
}
case DIERR_NOTACQUIRED:
case DIERR_INPUTLOST:
{
gamepads[gp]->Acquire();
break;
}
}
}
for (unsigned id = gpRangeBegin; id < gpRangeEnd; ++id)
setButton(id, gpBuffer[id - gpRangeBegin], collectEvents);
}
// For polled devices, or when there's no data.
void setButton(unsigned id, bool down, bool collectEvent)
{
if (buttons.at(id) != down)
forceButton(id, down, collectEvent);
}
void updateButtons(bool collectEvents)
{
DIDEVICEOBJECTDATA data[inputBufferSize];
DWORD inOut;
HRESULT hr;
RECT rect;
::GetClientRect(window, &rect);
bool ignoreClicks = mouseX < 0 || mouseX > rect.right || mouseY < 0 || mouseY > rect.bottom;
inOut = inputBufferSize;
hr = mouse->GetDeviceData(sizeof data[0], data, &inOut, 0);
switch(hr)
{
case DI_OK:
case DI_BUFFEROVERFLOW:
{
// Everything's ok: Update buttons and fire events.
for (unsigned i = 0; i < inOut; ++i)
{
bool down = (data[i].dwData & 0x80) != 0 && !ignoreClicks;
// No switch statement here because it breaks compilation with MinGW.
if (data[i].dwOfs == DIMOFS_BUTTON0)
{
unsigned id = swapMouse ? msRight : msLeft;
setButton(id, down, collectEvents);
}
else if (data[i].dwOfs == DIMOFS_BUTTON1)
{
unsigned id = swapMouse ? msLeft : msRight;
setButton(id, down, collectEvents);
}
else if (data[i].dwOfs == DIMOFS_BUTTON2)
{
setButton(msMiddle, down, collectEvents);
}
else if (data[i].dwOfs == DIMOFS_Z &&
collectEvents && data[i].dwData)
{
EventInfo event;
event.action = EventInfo::buttonDown;
if (int(data[i].dwData) < 0)
event.id = msWheelDown;
else
event.id = msWheelUp;
events.push_back(event);
event.action = EventInfo::buttonUp;
events.push_back(event);
}
}
break;
}
case DIERR_NOTACQUIRED:
case DIERR_INPUTLOST:
{
// Cannot fetch new events: Release all buttons.
for (unsigned id = msRangeBegin; id <= msRangeEnd; ++id)
setButton(id, false, collectEvents);
mouse->Acquire();
break;
}
}
inOut = inputBufferSize;
hr = keyboard->GetDeviceData(sizeof data[0], data, &inOut, 0);
switch (hr)
{
case DI_OK:
case DI_BUFFEROVERFLOW:
{
for (unsigned i = 0; i < inOut; ++i)
forceButton(data[i].dwOfs, (data[i].dwData & 0x80) != 0, collectEvents);
break;
}
case DIERR_NOTACQUIRED:
case DIERR_INPUTLOST:
{
for (unsigned id = kbRangeBegin; id <= kbRangeEnd; ++id)
setButton(id, false, collectEvents);
keyboard->Acquire();
break;
}
}
std::tr1::array<bool, gpNum> gpBuffer = { false };
for (unsigned gp = 0; gp < gamepads.size() && gp < numGamepads; ++gp)
{
gamepads[gp]->Poll();
int rangeOffset = (gp + 1) * gpNumPerGamepad - gpRangeBegin;
DIJOYSTATE joy;
hr = gamepads[gp]->GetDeviceState(sizeof joy, &joy);
switch (hr)
{
case DI_OK:
{
if (joy.lX < -stickThreshold)
gpBuffer[gpLeft + rangeOffset] = true;
else if (joy.lX > stickThreshold)
gpBuffer[gpRight + rangeOffset] = true;
if (joy.lY < -stickThreshold)
gpBuffer[gpUp + rangeOffset] = true;
else if (joy.lY > stickThreshold)
gpBuffer[gpDown + rangeOffset] = true;
for (unsigned id = gpButton0; id <= gpButton15; ++id)
if (joy.rgbButtons[id - gpButton0])
gpBuffer[id + rangeOffset] = true;
break;
}
case DIERR_NOTACQUIRED:
case DIERR_INPUTLOST:
{
gamepads[gp]->Acquire();
break;
}
}
// Merge these results into the area for "all gamepads OR'ed together"
for (int index = 0; index < gpNumPerGamepad; ++index)
gpBuffer[index] = (gpBuffer[index] || gpBuffer[index + (gp + 1) * gpNumPerGamepad]);
}
for (unsigned id = gpRangeBegin; id <= gpRangeEnd; ++id)
setButton(id, gpBuffer[id - gpRangeBegin], collectEvents);
}