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Revert "- Fix legacy input state getting out of sync when raw mouse input grabs or releases the events" 

This reverts commit b4424b2d4d.
This commit is contained in:
Magnus Norddahl 2020-04-08 16:21:16 +02:00
parent 2c1a42ae55
commit 0d7eb9da58
1 changed files with 29 additions and 119 deletions
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148
src/win32/i_mouse.cpp
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@ -78,15 +78,6 @@ public:
protected:
bool Grabbed;
POINT UngrabbedPointerPos;
private:
void RegisterRawInput();
void UnregisterRawInput();
void CheckDelayedUnregister(RAWINPUT* raw);
void ReleaseLegacyInput();
bool mDelayUnregister = false;
int mButtonsDown = 0;
};
class FDInputMouse : public FMouse
@ -578,21 +569,22 @@ void FRawMouse::Grab()
{
if (!Grabbed)
{
if (!mDelayUnregister)
{
ReleaseLegacyInput();
RegisterRawInput();
mButtonsDown = 0;
}
else
{
mDelayUnregister = false;
}
RAWINPUTDEVICE rid;
GetCursorPos(&UngrabbedPointerPos);
while (ShowCursor(FALSE) >= 0);
Grabbed = true;
SetCursorState(false);
rid.usUsagePage = HID_GENERIC_DESKTOP_PAGE;
rid.usUsage = HID_GDP_MOUSE;
rid.dwFlags = RIDEV_CAPTUREMOUSE | RIDEV_NOLEGACY;
rid.hwndTarget = Window;
if (RegisterRawInputDevices(&rid, 1, sizeof(rid)))
{
GetCursorPos(&UngrabbedPointerPos);
Grabbed = true;
SetCursorState(false);
// By setting the cursor position, we force the pointer image
// to change right away instead of having it delayed until
// some time in the future.
CenterMouse(-1, -1, NULL, NULL);
}
}
}
@ -606,104 +598,19 @@ void FRawMouse::Ungrab()
{
if (Grabbed)
{
// This is to prevent WM_RBUTTONUP from falling through to the application under the cursor when we release capture.
if (mButtonsDown == 0)
{
UnregisterRawInput();
}
else
{
mDelayUnregister = true;
}
RAWINPUTDEVICE rid;
Grabbed = false;
ClearButtonState();
rid.usUsagePage = HID_GENERIC_DESKTOP_PAGE;
rid.usUsage = HID_GDP_MOUSE;
rid.dwFlags = RIDEV_REMOVE;
rid.hwndTarget = NULL;
if (RegisterRawInputDevices(&rid, 1, sizeof(rid)))
{
Grabbed = false;
ClearButtonState();
}
SetCursorState(true);
SetCursorPos(UngrabbedPointerPos.x, UngrabbedPointerPos.y);
while (ShowCursor(TRUE) < 0);
}
}
//==========================================================================
//
// FRawMouse :: RegisterRawInput
//
//==========================================================================
void FRawMouse::RegisterRawInput()
{
RAWINPUTDEVICE rid;
rid.usUsagePage = HID_GENERIC_DESKTOP_PAGE;
rid.usUsage = HID_GDP_MOUSE;
rid.dwFlags = RIDEV_CAPTUREMOUSE | RIDEV_NOLEGACY | RIDEV_INPUTSINK;
rid.hwndTarget = Window;
RegisterRawInputDevices(&rid, 1, sizeof(rid));
}
//==========================================================================
//
// FRawMouse :: UnregisterRawInput
//
//==========================================================================
void FRawMouse::UnregisterRawInput()
{
RAWINPUTDEVICE rid;
rid.usUsagePage = HID_GENERIC_DESKTOP_PAGE;
rid.usUsage = HID_GDP_MOUSE;
rid.dwFlags = RIDEV_REMOVE;
rid.hwndTarget = NULL;
RegisterRawInputDevices(&rid, 1, sizeof(rid));
}
//==========================================================================
//
// FRawMouse :: ReleaseLegacyMouseDown
//
//==========================================================================
void FRawMouse::ReleaseLegacyInput()
{
// Send release of all pressed mouse buttons to the Windows legacy input system.
// If this isn't done the legacy input system may think the buttons are still down when we release the capture of input events.
const int vkeys[] = { VK_LBUTTON, VK_RBUTTON, VK_MBUTTON, VK_XBUTTON1, VK_XBUTTON2 };
const DWORD keyflags[] = { MOUSEEVENTF_LEFTUP, MOUSEEVENTF_RIGHTUP, MOUSEEVENTF_MIDDLEUP, MOUSEEVENTF_XUP, MOUSEEVENTF_XUP };
const DWORD mousedata[] = { 0, 0, 0, XBUTTON1, XBUTTON2 };
std::vector<INPUT> inputs;
for (int i = 0; i < 5; i++)
{
bool keydown = GetKeyState(vkeys[i]) < 0;
if (keydown)
{
INPUT input = {};
input.type = INPUT_MOUSE;
input.mi.dwExtraInfo = GetMessageExtraInfo();
input.mi.dwFlags = keyflags[i];
input.mi.mouseData = mousedata[i];
inputs.push_back(input);
}
}
SendInput((UINT)inputs.size(), inputs.data(), sizeof(INPUT));
}
void FRawMouse::CheckDelayedUnregister(RAWINPUT* raw)
{
// Track button state
for (DWORD i = 0; i < 5; i++)
{
DWORD down = 1 << (i * 2);
DWORD up = down << 1;
if (raw->data.mouse.usButtonFlags & down)
mButtonsDown |= (1 << i);
else if (raw->data.mouse.usButtonFlags & up)
mButtonsDown &= ~(1 << i);
}
if (mDelayUnregister && mButtonsDown == 0)
{
UnregisterRawInput();
mDelayUnregister = false;
}
}
@ -748,7 +655,10 @@ bool FRawMouse::ProcessRawInput(RAWINPUT *raw, int code)
int x = m_noprescale ? raw->data.mouse.lLastX : raw->data.mouse.lLastX << 2;
int y = -raw->data.mouse.lLastY;
PostMouseMove(x, y);
CheckDelayedUnregister(raw);
if (x | y)
{
CenterMouse(-1, -1, NULL, NULL);
}
return true;
}