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path: root/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
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Diffstat (limited to 'services/inputflinger/reader/mapper/JoystickInputMapper.cpp')
-rw-r--r--services/inputflinger/reader/mapper/JoystickInputMapper.cpp150
1 files changed, 77 insertions, 73 deletions
diff --git a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
index 030a846727..0dc312ecd2 100644
--- a/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/JoystickInputMapper.cpp
@@ -32,8 +32,8 @@ uint32_t JoystickInputMapper::getSources() {
void JoystickInputMapper::populateDeviceInfo(InputDeviceInfo* info) {
InputMapper::populateDeviceInfo(info);
- for (size_t i = 0; i < mAxes.size(); i++) {
- const Axis& axis = mAxes.valueAt(i);
+ for (std::pair<const int32_t, Axis>& pair : mAxes) {
+ const Axis& axis = pair.second;
addMotionRange(axis.axisInfo.axis, axis, info);
if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) {
@@ -72,17 +72,15 @@ void JoystickInputMapper::dump(std::string& dump) {
dump += INDENT2 "Joystick Input Mapper:\n";
dump += INDENT3 "Axes:\n";
- size_t numAxes = mAxes.size();
- for (size_t i = 0; i < numAxes; i++) {
- const Axis& axis = mAxes.valueAt(i);
- const char* label = getAxisLabel(axis.axisInfo.axis);
+ for (const auto& [rawAxis, axis] : mAxes) {
+ const char* label = InputEventLookup::getAxisLabel(axis.axisInfo.axis);
if (label) {
dump += StringPrintf(INDENT4 "%s", label);
} else {
dump += StringPrintf(INDENT4 "%d", axis.axisInfo.axis);
}
if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) {
- label = getAxisLabel(axis.axisInfo.highAxis);
+ label = InputEventLookup::getAxisLabel(axis.axisInfo.highAxis);
if (label) {
dump += StringPrintf(" / %s (split at %d)", label, axis.axisInfo.splitValue);
} else {
@@ -100,7 +98,7 @@ void JoystickInputMapper::dump(std::string& dump) {
axis.scale, axis.offset, axis.highScale, axis.highOffset);
dump += StringPrintf(INDENT4 " rawAxis=%d, rawMin=%d, rawMax=%d, "
"rawFlat=%d, rawFuzz=%d, rawResolution=%d\n",
- mAxes.keyAt(i), axis.rawAxisInfo.minValue, axis.rawAxisInfo.maxValue,
+ rawAxis, axis.rawAxisInfo.minValue, axis.rawAxisInfo.maxValue,
axis.rawAxisInfo.flat, axis.rawAxisInfo.fuzz,
axis.rawAxisInfo.resolution);
}
@@ -113,8 +111,8 @@ void JoystickInputMapper::configure(nsecs_t when, const InputReaderConfiguration
if (!changes) { // first time only
// Collect all axes.
for (int32_t abs = 0; abs <= ABS_MAX; abs++) {
- if (!(getAbsAxisUsage(abs, getDeviceContext().getDeviceClasses()) &
- INPUT_DEVICE_CLASS_JOYSTICK)) {
+ if (!(getAbsAxisUsage(abs, getDeviceContext().getDeviceClasses())
+ .test(InputDeviceClass::JOYSTICK))) {
continue; // axis must be claimed by a different device
}
@@ -123,43 +121,14 @@ void JoystickInputMapper::configure(nsecs_t when, const InputReaderConfiguration
if (rawAxisInfo.valid) {
// Map axis.
AxisInfo axisInfo;
- bool explicitlyMapped = !getDeviceContext().mapAxis(abs, &axisInfo);
+ const bool explicitlyMapped = !getDeviceContext().mapAxis(abs, &axisInfo);
+
if (!explicitlyMapped) {
// Axis is not explicitly mapped, will choose a generic axis later.
axisInfo.mode = AxisInfo::MODE_NORMAL;
axisInfo.axis = -1;
}
-
- // Apply flat override.
- int32_t rawFlat =
- axisInfo.flatOverride < 0 ? rawAxisInfo.flat : axisInfo.flatOverride;
-
- // Calculate scaling factors and limits.
- Axis axis;
- if (axisInfo.mode == AxisInfo::MODE_SPLIT) {
- float scale = 1.0f / (axisInfo.splitValue - rawAxisInfo.minValue);
- float highScale = 1.0f / (rawAxisInfo.maxValue - axisInfo.splitValue);
- axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, scale, 0.0f, highScale,
- 0.0f, 0.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale,
- rawAxisInfo.resolution * scale);
- } else if (isCenteredAxis(axisInfo.axis)) {
- float scale = 2.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
- float offset = avg(rawAxisInfo.minValue, rawAxisInfo.maxValue) * -scale;
- axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, scale, offset, scale,
- offset, -1.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale,
- rawAxisInfo.resolution * scale);
- } else {
- float scale = 1.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
- axis.initialize(rawAxisInfo, axisInfo, explicitlyMapped, scale, 0.0f, scale,
- 0.0f, 0.0f, 1.0f, rawFlat * scale, rawAxisInfo.fuzz * scale,
- rawAxisInfo.resolution * scale);
- }
-
- // To eliminate noise while the joystick is at rest, filter out small variations
- // in axis values up front.
- axis.filter = axis.fuzz ? axis.fuzz : axis.flat * 0.25f;
-
- mAxes.add(abs, axis);
+ mAxes.insert({abs, createAxis(axisInfo, rawAxisInfo, explicitlyMapped)});
}
}
@@ -174,9 +143,8 @@ void JoystickInputMapper::configure(nsecs_t when, const InputReaderConfiguration
// Assign generic axis ids to remaining axes.
int32_t nextGenericAxisId = AMOTION_EVENT_AXIS_GENERIC_1;
- size_t numAxes = mAxes.size();
- for (size_t i = 0; i < numAxes; i++) {
- Axis& axis = mAxes.editValueAt(i);
+ for (auto it = mAxes.begin(); it != mAxes.end(); /*increment it inside loop*/) {
+ Axis& axis = it->second;
if (axis.axisInfo.axis < 0) {
while (nextGenericAxisId <= AMOTION_EVENT_AXIS_GENERIC_16 &&
haveAxis(nextGenericAxisId)) {
@@ -189,19 +157,57 @@ void JoystickInputMapper::configure(nsecs_t when, const InputReaderConfiguration
} else {
ALOGI("Ignoring joystick '%s' axis %d because all of the generic axis ids "
"have already been assigned to other axes.",
- getDeviceName().c_str(), mAxes.keyAt(i));
- mAxes.removeItemsAt(i--);
- numAxes -= 1;
+ getDeviceName().c_str(), it->first);
+ it = mAxes.erase(it);
+ continue;
}
}
+ it++;
}
}
}
+JoystickInputMapper::Axis JoystickInputMapper::createAxis(const AxisInfo& axisInfo,
+ const RawAbsoluteAxisInfo& rawAxisInfo,
+ bool explicitlyMapped) {
+ // Apply flat override.
+ int32_t rawFlat = axisInfo.flatOverride < 0 ? rawAxisInfo.flat : axisInfo.flatOverride;
+
+ float scale = std::numeric_limits<float>::signaling_NaN();
+ float highScale = std::numeric_limits<float>::signaling_NaN();
+ float highOffset = 0;
+ float offset = 0;
+ float min = 0;
+ // Calculate scaling factors and limits.
+ if (axisInfo.mode == AxisInfo::MODE_SPLIT) {
+ scale = 1.0f / (axisInfo.splitValue - rawAxisInfo.minValue);
+ highScale = 1.0f / (rawAxisInfo.maxValue - axisInfo.splitValue);
+ } else if (isCenteredAxis(axisInfo.axis)) {
+ scale = 2.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
+ offset = avg(rawAxisInfo.minValue, rawAxisInfo.maxValue) * -scale;
+ highOffset = offset;
+ highScale = scale;
+ min = -1.0f;
+ } else {
+ scale = 1.0f / (rawAxisInfo.maxValue - rawAxisInfo.minValue);
+ highScale = scale;
+ }
+
+ constexpr float max = 1.0;
+ const float flat = rawFlat * scale;
+ const float fuzz = rawAxisInfo.fuzz * scale;
+ const float resolution = rawAxisInfo.resolution * scale;
+
+ // To eliminate noise while the joystick is at rest, filter out small variations
+ // in axis values up front.
+ const float filter = fuzz ? fuzz : flat * 0.25f;
+ return Axis(rawAxisInfo, axisInfo, explicitlyMapped, scale, offset, highScale, highOffset, min,
+ max, flat, fuzz, resolution, filter);
+}
+
bool JoystickInputMapper::haveAxis(int32_t axisId) {
- size_t numAxes = mAxes.size();
- for (size_t i = 0; i < numAxes; i++) {
- const Axis& axis = mAxes.valueAt(i);
+ for (const std::pair<const int32_t, Axis>& pair : mAxes) {
+ const Axis& axis = pair.second;
if (axis.axisInfo.axis == axisId ||
(axis.axisInfo.mode == AxisInfo::MODE_SPLIT && axis.axisInfo.highAxis == axisId)) {
return true;
@@ -211,14 +217,14 @@ bool JoystickInputMapper::haveAxis(int32_t axisId) {
}
void JoystickInputMapper::pruneAxes(bool ignoreExplicitlyMappedAxes) {
- size_t i = mAxes.size();
- while (mAxes.size() > PointerCoords::MAX_AXES && i-- > 0) {
- if (ignoreExplicitlyMappedAxes && mAxes.valueAt(i).explicitlyMapped) {
+ while (mAxes.size() > PointerCoords::MAX_AXES) {
+ auto it = mAxes.begin();
+ if (ignoreExplicitlyMappedAxes && it->second.explicitlyMapped) {
continue;
}
ALOGI("Discarding joystick '%s' axis %d because there are too many axes.",
- getDeviceName().c_str(), mAxes.keyAt(i));
- mAxes.removeItemsAt(i);
+ getDeviceName().c_str(), it->first);
+ mAxes.erase(it);
}
}
@@ -243,9 +249,8 @@ bool JoystickInputMapper::isCenteredAxis(int32_t axis) {
void JoystickInputMapper::reset(nsecs_t when) {
// Recenter all axes.
- size_t numAxes = mAxes.size();
- for (size_t i = 0; i < numAxes; i++) {
- Axis& axis = mAxes.editValueAt(i);
+ for (std::pair<const int32_t, Axis>& pair : mAxes) {
+ Axis& axis = pair.second;
axis.resetValue();
}
@@ -255,9 +260,9 @@ void JoystickInputMapper::reset(nsecs_t when) {
void JoystickInputMapper::process(const RawEvent* rawEvent) {
switch (rawEvent->type) {
case EV_ABS: {
- ssize_t index = mAxes.indexOfKey(rawEvent->code);
- if (index >= 0) {
- Axis& axis = mAxes.editValueAt(index);
+ auto it = mAxes.find(rawEvent->code);
+ if (it != mAxes.end()) {
+ Axis& axis = it->second;
float newValue, highNewValue;
switch (axis.axisInfo.mode) {
case AxisInfo::MODE_INVERT:
@@ -294,14 +299,14 @@ void JoystickInputMapper::process(const RawEvent* rawEvent) {
case EV_SYN:
switch (rawEvent->code) {
case SYN_REPORT:
- sync(rawEvent->when, false /*force*/);
+ sync(rawEvent->when, rawEvent->readTime, false /*force*/);
break;
}
break;
}
}
-void JoystickInputMapper::sync(nsecs_t when, bool force) {
+void JoystickInputMapper::sync(nsecs_t when, nsecs_t readTime, bool force) {
if (!filterAxes(force)) {
return;
}
@@ -317,9 +322,8 @@ void JoystickInputMapper::sync(nsecs_t when, bool force) {
PointerCoords pointerCoords;
pointerCoords.clear();
- size_t numAxes = mAxes.size();
- for (size_t i = 0; i < numAxes; i++) {
- const Axis& axis = mAxes.valueAt(i);
+ for (std::pair<const int32_t, Axis>& pair : mAxes) {
+ const Axis& axis = pair.second;
setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.axis, axis.currentValue);
if (axis.axisInfo.mode == AxisInfo::MODE_SPLIT) {
setPointerCoordsAxisValue(&pointerCoords, axis.axisInfo.highAxis,
@@ -333,9 +337,10 @@ void JoystickInputMapper::sync(nsecs_t when, bool force) {
// TODO: Use the input device configuration to control this behavior more finely.
uint32_t policyFlags = 0;
- NotifyMotionArgs args(getContext()->getNextId(), when, getDeviceId(), AINPUT_SOURCE_JOYSTICK,
- ADISPLAY_ID_NONE, policyFlags, AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState,
- buttonState, MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
+ NotifyMotionArgs args(getContext()->getNextId(), when, readTime, getDeviceId(),
+ AINPUT_SOURCE_JOYSTICK, ADISPLAY_ID_NONE, policyFlags,
+ AMOTION_EVENT_ACTION_MOVE, 0, 0, metaState, buttonState,
+ MotionClassification::NONE, AMOTION_EVENT_EDGE_FLAG_NONE, 1,
&pointerProperties, &pointerCoords, 0, 0,
AMOTION_EVENT_INVALID_CURSOR_POSITION,
AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, /* videoFrames */ {});
@@ -357,9 +362,8 @@ void JoystickInputMapper::setPointerCoordsAxisValue(PointerCoords* pointerCoords
bool JoystickInputMapper::filterAxes(bool force) {
bool atLeastOneSignificantChange = force;
- size_t numAxes = mAxes.size();
- for (size_t i = 0; i < numAxes; i++) {
- Axis& axis = mAxes.editValueAt(i);
+ for (std::pair<const int32_t, Axis>& pair : mAxes) {
+ Axis& axis = pair.second;
if (force ||
hasValueChangedSignificantly(axis.filter, axis.newValue, axis.currentValue, axis.min,
axis.max)) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-12 22:46:26 +0000