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Implement full support for mouse input on Android

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The smoothing algorithm changed a bit now that I centralized that logic
in a way that can work with all backends.
This commit is contained in:
Henrik Rydgård
2023-12-10 09:52:19 +01:00
parent 904ce4f7e1
commit db4993bfdc
10 changed files with 120 additions and 64 deletions
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UI/NativeApp.cpp
+58
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@@ -1071,6 +1071,8 @@ static Matrix4x4 ComputeOrthoMatrix(float xres, float yres) {
return ortho;
}
static void SendMouseDeltaAxis();
void NativeFrame(GraphicsContext *graphicsContext) {
PROFILE_END_FRAME();
@@ -1203,6 +1205,8 @@ void NativeFrame(GraphicsContext *graphicsContext) {
if (sleepTime > 0)
sleep_ms(sleepTime);
}
SendMouseDeltaAxis();
}
bool HandleGlobalMessage(UIMessage message, const std::string &value) {
@@ -1358,6 +1362,60 @@ void NativeAxis(const AxisInput *axes, size_t count) {
}
}
float g_mouseDeltaX = 0;
float g_mouseDeltaY = 0;
void NativeMouseDelta(float dx, float dy) {
// Remap, shared code. Then send it as a regular axis event.
if (!g_Config.bMouseControl)
return;
// Accumulate mouse deltas, for some kind of smoothing.
g_mouseDeltaX += dx;
g_mouseDeltaY += dy;
}
// Called from NativeFrame.
static void SendMouseDeltaAxis() {
static double lastTime = 0.0f;
double now = time_now_d();
if (lastTime == 0.0) {
lastTime = now;
return;
}
double dt = now - lastTime;
lastTime = now;
float scaleFactor_x = g_display.dpi_scale_x * 0.1 * g_Config.fMouseSensitivity;
float scaleFactor_y = g_display.dpi_scale_y * 0.1 * g_Config.fMouseSensitivity;
float mx = clamp_value(g_mouseDeltaX * scaleFactor_x, -1.0f, 1.0f);
float my = clamp_value(g_mouseDeltaY * scaleFactor_y, -1.0f, 1.0f);
// Decay the mouse deltas. This is where we should use dt.
float decay = expf(-dt * 50.0f * (1.0f - g_Config.fMouseSmoothing));
g_mouseDeltaX *= decay;
g_mouseDeltaY *= decay;
AxisInput axis[2];
axis[0].axisId = JOYSTICK_AXIS_MOUSE_REL_X;
axis[0].deviceId = DEVICE_ID_MOUSE;
axis[0].value = mx;
axis[1].axisId = JOYSTICK_AXIS_MOUSE_REL_Y;
axis[1].deviceId = DEVICE_ID_MOUSE;
axis[1].value = my;
HLEPlugins::PluginDataAxis[JOYSTICK_AXIS_MOUSE_REL_X] = mx;
HLEPlugins::PluginDataAxis[JOYSTICK_AXIS_MOUSE_REL_Y] = my;
//NOTICE_LOG(SYSTEM, "delta: %0.2f %0.2f mx/my: %0.2f %0.2f dpi: %f sens: %f ",
// g_mouseDeltaX, g_mouseDeltaY, mx, my, g_display.dpi_scale_x, g_Config.fMouseSensitivity);
if (GetUIState() == UISTATE_INGAME || g_Config.bMapMouse) {
NativeAxis(axis, 2);
}
}
void NativeAccelerometer(float tiltX, float tiltY, float tiltZ) {
if (g_Config.iTiltInputType == TILT_NULL) {
// if tilt events are disabled, don't do anything special.