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Commit 2ce5bb80 authored by Evan Rosky's avatar Evan Rosky Committed by Automerger Merge Worker
Browse files

Add enough information to compatibility-transform getRaw() am: 84f07f0c 

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/14213061

Change-Id: Ic99f59ee0b51276869cbd271f9f18f8f039c3185
parents 0ef0c848 84f07f0c

include/input/Input.h

+33 −3
Original line number Diff line number Diff line
@@ -318,6 +318,12 @@ private: 
 */

constexpr float AMOTION_EVENT_INVALID_CURSOR_POSITION = std::numeric_limits<float>::quiet_NaN();



/**

 * Invalid value for display size. Used when display size isn't available for an event or doesn't

 * matter. This is just a constant 0 so that it has no effect if unused.

 */

constexpr int32_t AMOTION_EVENT_INVALID_DISPLAY_SIZE = 0;



/*

 * Pointer coordinate data.

 */
@@ -360,6 +366,8 @@ struct PointerCoords { 
        return getAxisValue(AMOTION_EVENT_AXIS_Y);

    }



    vec2 getXYValue() const { return vec2(getX(), getY()); }



#ifdef __linux__

    status_t readFromParcel(Parcel* parcel);

    status_t writeToParcel(Parcel* parcel) const;
@@ -548,6 +556,8 @@ public: 


    void setCursorPosition(float x, float y);



    int2 getDisplaySize() const { return {mDisplayWidth, mDisplayHeight}; }



    static inline bool isValidCursorPosition(float x, float y) { return !isnan(x) && !isnan(y); }



    inline nsecs_t getDownTime() const { return mDownTime; }
@@ -570,8 +580,17 @@ public: 


    inline nsecs_t getEventTime() const { return mSampleEventTimes[getHistorySize()]; }



    /**

     * The actual raw pointer coords: whatever comes from the input device without any external

     * transforms applied.

     */

    const PointerCoords* getRawPointerCoords(size_t pointerIndex) const;



    /**

     * This is the raw axis value. However, for X/Y axes, this currently applies a "compat-raw"

     * transform because many apps (incorrectly) assumed that raw == oriented-screen-space.

     * "compat raw" is raw coordinates with screen rotation applied.

     */

    float getRawAxisValue(int32_t axis, size_t pointerIndex) const;



    inline float getRawX(size_t pointerIndex) const {
@@ -634,9 +653,18 @@ public: 
        return mSampleEventTimes[historicalIndex];

    }



    /**

     * The actual raw pointer coords: whatever comes from the input device without any external

     * transforms applied.

     */

    const PointerCoords* getHistoricalRawPointerCoords(

            size_t pointerIndex, size_t historicalIndex) const;



    /**

     * This is the raw axis value. However, for X/Y axes, this currently applies a "compat-raw"

     * transform because many apps (incorrectly) assumed that raw == oriented-screen-space.

     * "compat raw" is raw coordinates with screen rotation applied.

     */

    float getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,

            size_t historicalIndex) const;
@@ -704,9 +732,9 @@ public: 
                    int32_t flags, int32_t edgeFlags, int32_t metaState, int32_t buttonState,

                    MotionClassification classification, const ui::Transform& transform,

                    float xPrecision, float yPrecision, float rawXCursorPosition,

                    float rawYCursorPosition, nsecs_t downTime, nsecs_t eventTime,

                    size_t pointerCount, const PointerProperties* pointerProperties,

                    const PointerCoords* pointerCoords);

                    float rawYCursorPosition, int32_t displayWidth, int32_t displayHeight,

                    nsecs_t downTime, nsecs_t eventTime, size_t pointerCount,

                    const PointerProperties* pointerProperties, const PointerCoords* pointerCoords);



    void copyFrom(const MotionEvent* other, bool keepHistory);
@@ -759,6 +787,8 @@ protected: 
    float mYPrecision;

    float mRawXCursorPosition;

    float mRawYCursorPosition;

    int32_t mDisplayWidth;

    int32_t mDisplayHeight;

    nsecs_t mDownTime;

    Vector<PointerProperties> mPointerProperties;

    std::vector<nsecs_t> mSampleEventTimes;

include/input/InputTransport.h

+5 −2
Original line number Diff line number Diff line
@@ -136,6 +136,8 @@ struct InputMessage { 
            float yPrecision;

            float xCursorPosition;

            float yCursorPosition;

            int32_t displayWidth;

            int32_t displayHeight;

            uint32_t pointerCount;

            uint32_t empty3;

            /**
@@ -353,8 +355,9 @@ public: 
                                int32_t metaState, int32_t buttonState,

                                MotionClassification classification, const ui::Transform& transform,

                                float xPrecision, float yPrecision, float xCursorPosition,

                                float yCursorPosition, nsecs_t downTime, nsecs_t eventTime,

                                uint32_t pointerCount, const PointerProperties* pointerProperties,

                                float yCursorPosition, int32_t displayWidth, int32_t displayHeight,

                                nsecs_t downTime, nsecs_t eventTime, uint32_t pointerCount,

                                const PointerProperties* pointerProperties,

                                const PointerCoords* pointerCoords);



    /* Publishes a focus event to the input channel.

include/input/InputWindow.h

+4 −0
Original line number Diff line number Diff line
@@ -168,6 +168,10 @@ struct InputWindowInfo : public Parcelable { 
    // Transform applied to individual windows.

    ui::Transform transform;



    // Display size in its natural rotation. Used to rotate raw coordinates for compatibility.

    int32_t displayWidth = AMOTION_EVENT_INVALID_DISPLAY_SIZE;

    int32_t displayHeight = AMOTION_EVENT_INVALID_DISPLAY_SIZE;



    /*

     * This is filled in by the WM relative to the frame and then translated

     * to absolute coordinates by SurfaceFlinger once the frame is computed.

libs/input/Input.cpp

+41 −16
Original line number Diff line number Diff line
@@ -340,7 +340,8 @@ void MotionEvent::initialize(int32_t id, int32_t deviceId, uint32_t source, int3 
                             int32_t flags, int32_t edgeFlags, int32_t metaState,

                             int32_t buttonState, MotionClassification classification,

                             const ui::Transform& transform, float xPrecision, float yPrecision,

                             float rawXCursorPosition, float rawYCursorPosition, nsecs_t downTime,

                             float rawXCursorPosition, float rawYCursorPosition,

                             int32_t displayWidth, int32_t displayHeight, nsecs_t downTime,

                             nsecs_t eventTime, size_t pointerCount,

                             const PointerProperties* pointerProperties,

                             const PointerCoords* pointerCoords) {
@@ -357,6 +358,8 @@ void MotionEvent::initialize(int32_t id, int32_t deviceId, uint32_t source, int3 
    mYPrecision = yPrecision;

    mRawXCursorPosition = rawXCursorPosition;

    mRawYCursorPosition = rawYCursorPosition;

    mDisplayWidth = displayWidth;

    mDisplayHeight = displayHeight;

    mDownTime = downTime;

    mPointerProperties.clear();

    mPointerProperties.appendArray(pointerProperties, pointerCount);
@@ -380,6 +383,8 @@ void MotionEvent::copyFrom(const MotionEvent* other, bool keepHistory) { 
    mYPrecision = other->mYPrecision;

    mRawXCursorPosition = other->mRawXCursorPosition;

    mRawYCursorPosition = other->mRawYCursorPosition;

    mDisplayWidth = other->mDisplayWidth;

    mDisplayHeight = other->mDisplayHeight;

    mDownTime = other->mDownTime;

    mPointerProperties = other->mPointerProperties;
@@ -426,7 +431,7 @@ const PointerCoords* MotionEvent::getRawPointerCoords(size_t pointerIndex) const 
}



float MotionEvent::getRawAxisValue(int32_t axis, size_t pointerIndex) const {

    return getRawPointerCoords(pointerIndex)->getAxisValue(axis);

    return getHistoricalRawAxisValue(axis, pointerIndex, getHistorySize());

}



float MotionEvent::getAxisValue(int32_t axis, size_t pointerIndex) const {
@@ -440,28 +445,44 @@ const PointerCoords* MotionEvent::getHistoricalRawPointerCoords( 


float MotionEvent::getHistoricalRawAxisValue(int32_t axis, size_t pointerIndex,

        size_t historicalIndex) const {

    if (axis != AMOTION_EVENT_AXIS_X && axis != AMOTION_EVENT_AXIS_Y) {

        return getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);

    }

    // 0x7 encapsulates all 3 rotations (see ui::Transform::RotationFlags)

    static const int ALL_ROTATIONS_MASK = 0x7;

    uint32_t orientation = (mTransform.getOrientation() & ALL_ROTATIONS_MASK);

    if (orientation == ui::Transform::ROT_0) {

        return getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);

    }



    // For compatibility, convert raw coordinates into "oriented screen space". Once app developers

    // are educated about getRaw, we can consider removing this.

    vec2 xy = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getXYValue();

    const float unrotatedX = xy.x;

    if (orientation == ui::Transform::ROT_90) {

        xy.x = mDisplayHeight - xy.y;

        xy.y = unrotatedX;

    } else if (orientation == ui::Transform::ROT_180) {

        xy.x = mDisplayWidth - xy.x;

        xy.y = mDisplayHeight - xy.y;

    } else if (orientation == ui::Transform::ROT_270) {

        xy.x = xy.y;

        xy.y = mDisplayWidth - unrotatedX;

    }

    static_assert(AMOTION_EVENT_AXIS_X == 0 && AMOTION_EVENT_AXIS_Y == 1);

    return xy[axis];

}



float MotionEvent::getHistoricalAxisValue(int32_t axis, size_t pointerIndex,

        size_t historicalIndex) const {

    if (axis != AMOTION_EVENT_AXIS_X && axis != AMOTION_EVENT_AXIS_Y) {

        return getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getAxisValue(axis);

    }



    float rawX = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getX();

    float rawY = getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getY();

    vec2 vals = mTransform.transform(rawX, rawY);



    switch (axis) {

    case AMOTION_EVENT_AXIS_X:

        return vals.x;

    case AMOTION_EVENT_AXIS_Y:

        return vals.y;

    }



    // This should never happen

    return 0;

    vec2 vals = mTransform.transform(

            getHistoricalRawPointerCoords(pointerIndex, historicalIndex)->getXYValue());

    static_assert(AMOTION_EVENT_AXIS_X == 0 && AMOTION_EVENT_AXIS_Y == 1);

    return vals[axis];

}



ssize_t MotionEvent::findPointerIndex(int32_t pointerId) const {
@@ -606,6 +627,8 @@ status_t MotionEvent::readFromParcel(Parcel* parcel) { 
    mYPrecision = parcel->readFloat();

    mRawXCursorPosition = parcel->readFloat();

    mRawYCursorPosition = parcel->readFloat();

    mDisplayWidth = parcel->readInt32();

    mDisplayHeight = parcel->readInt32();

    mDownTime = parcel->readInt64();



    mPointerProperties.clear();
@@ -665,6 +688,8 @@ status_t MotionEvent::writeToParcel(Parcel* parcel) const { 
    parcel->writeFloat(mYPrecision);

    parcel->writeFloat(mRawXCursorPosition);

    parcel->writeFloat(mRawYCursorPosition);

    parcel->writeInt32(mDisplayWidth);

    parcel->writeInt32(mDisplayHeight);

    parcel->writeInt64(mDownTime);



    for (size_t i = 0; i < pointerCount; i++) {

libs/input/InputTransport.cpp

+10 −3
Original line number Diff line number Diff line
@@ -228,6 +228,10 @@ void InputMessage::getSanitizedCopy(InputMessage* msg) const { 
            msg->body.motion.xCursorPosition = body.motion.xCursorPosition;

            // float yCursorPosition

            msg->body.motion.yCursorPosition = body.motion.yCursorPosition;

            // int32_t displayW

            msg->body.motion.displayWidth = body.motion.displayWidth;

            // int32_t displayH

            msg->body.motion.displayHeight = body.motion.displayHeight;

            // uint32_t pointerCount

            msg->body.motion.pointerCount = body.motion.pointerCount;

            //struct Pointer pointers[MAX_POINTERS]
@@ -517,9 +521,9 @@ status_t InputPublisher::publishMotionEvent( 
        std::array<uint8_t, 32> hmac, int32_t action, int32_t actionButton, int32_t flags,

        int32_t edgeFlags, int32_t metaState, int32_t buttonState,

        MotionClassification classification, const ui::Transform& transform, float xPrecision,

        float yPrecision, float xCursorPosition, float yCursorPosition, nsecs_t downTime,

        nsecs_t eventTime, uint32_t pointerCount, const PointerProperties* pointerProperties,

        const PointerCoords* pointerCoords) {

        float yPrecision, float xCursorPosition, float yCursorPosition, int32_t displayWidth,

        int32_t displayHeight, nsecs_t downTime, nsecs_t eventTime, uint32_t pointerCount,

        const PointerProperties* pointerProperties, const PointerCoords* pointerCoords) {

    if (ATRACE_ENABLED()) {

        std::string message = StringPrintf(

                "publishMotionEvent(inputChannel=%s, action=%" PRId32 ")",
@@ -577,6 +581,8 @@ status_t InputPublisher::publishMotionEvent( 
    msg.body.motion.yPrecision = yPrecision;

    msg.body.motion.xCursorPosition = xCursorPosition;

    msg.body.motion.yCursorPosition = yCursorPosition;

    msg.body.motion.displayWidth = displayWidth;

    msg.body.motion.displayHeight = displayHeight;

    msg.body.motion.downTime = downTime;

    msg.body.motion.eventTime = eventTime;

    msg.body.motion.pointerCount = pointerCount;
@@ -1343,6 +1349,7 @@ void InputConsumer::initializeMotionEvent(MotionEvent* event, const InputMessage 
                      msg->body.motion.buttonState, msg->body.motion.classification, transform,

                      msg->body.motion.xPrecision, msg->body.motion.yPrecision,

                      msg->body.motion.xCursorPosition, msg->body.motion.yCursorPosition,

                      msg->body.motion.displayWidth, msg->body.motion.displayHeight,

                      msg->body.motion.downTime, msg->body.motion.eventTime, pointerCount,

                      pointerProperties, pointerCoords);

}