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author Vas Crabb <vas@vastheman.com>2023-02-24 19:31:12 +1100
committer Vas Crabb <vas@vastheman.com>2023-02-24 19:31:12 +1100
commit65aeb63a2a1f4f65a6fa0dedabba1b852a189f96 (patch)
tree42a56bcf4d22b624dbb117946e376981e691a5f0 /src/osd/modules/input/input_dinput.cpp
parent3b5dbeea3bad50ad04c966de4afffb864a9856d0 (diff)
Update accumulating relative inputs exactly once per frame.
This fixes "amplification" effects that would happen if the frame rate rose above 100 Hz (whether by unthrottling or otherwise). Synchronise with wall clock any time inputs are read. Not doing this has weird effects on relative inputs with frame skipping and contributes to unresponsiveness of menus. Reduce visual latency for mouse movement on menus when paused or skipping frames. The rest of the code changes to menus won't provide benefits until draw can happen after event handling.
Diffstat (limited to 'src/osd/modules/input/input_dinput.cpp')
-rw-r--r--src/osd/modules/input/input_dinput.cpp12
1 files changed, 6 insertions, 6 deletions
diff --git a/src/osd/modules/input/input_dinput.cpp b/src/osd/modules/input/input_dinput.cpp
index ce19ed88dfe..1ec3c85a886 100644
--- a/src/osd/modules/input/input_dinput.cpp
+++ b/src/osd/modules/input/input_dinput.cpp
@@ -163,7 +163,7 @@ public:
DIDEVCAPS const &caps,
LPCDIDATAFORMAT format);
- virtual void poll() override;
+ virtual void poll(bool relative_reset) override;
virtual void reset() override;
virtual void configure(input_device &device) override;
@@ -184,7 +184,7 @@ dinput_keyboard_device::dinput_keyboard_device(
{
}
-void dinput_keyboard_device::poll()
+void dinput_keyboard_device::poll(bool relative_reset)
{
// poll the DirectInput immediate state
std::lock_guard<std::mutex> scope_lock(m_device_lock);
@@ -233,7 +233,7 @@ public:
DIDEVCAPS const &caps,
LPCDIDATAFORMAT format);
- void poll() override;
+ void poll(bool relative_reset) override;
void reset() override;
virtual void configure(input_device &device) override;
@@ -256,10 +256,10 @@ dinput_mouse_device::dinput_mouse_device(
m_caps.dwButtons = std::min(m_caps.dwButtons, DWORD((m_format == &c_dfDIMouse) ? 4 : 8));
}
-void dinput_mouse_device::poll()
+void dinput_mouse_device::poll(bool relative_reset)
{
// poll
- if (poll_dinput(&m_mouse) == DI_OK)
+ if (relative_reset && (poll_dinput(&m_mouse) == DI_OK))
{
// scale the axis data
m_mouse.lX *= input_device::RELATIVE_PER_PIXEL;
@@ -566,7 +566,7 @@ void dinput_joystick_device::reset()
std::fill(std::begin(m_joystick.state.rgdwPOV), std::end(m_joystick.state.rgdwPOV), 0xffff);
}
-void dinput_joystick_device::poll()
+void dinput_joystick_device::poll(bool relative_reset)
{
// poll the device first
if (dinput_device::poll_dinput(&m_joystick.state) == DI_OK)