android_frameworks_base/libs/hwui/jni/android_graphics_RenderNode.cpp

/*
 * Copyright (C) 2012 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#define ATRACE_TAG ATRACE_TAG_VIEW
#include "GraphicsJNI.h"

#include <Animator.h>
#include <DamageAccumulator.h>
#include <Matrix.h>
#include <RenderNode.h>
#ifdef __ANDROID__ // Layoutlib does not support CanvasContext
#include <renderthread/CanvasContext.h>
#endif
#include <TreeInfo.h>
#include <effects/StretchEffect.h>
#include <gui/TraceUtils.h>
#include <hwui/Paint.h>

namespace android {

using namespace uirenderer;

#define SET_AND_DIRTY(prop, val, dirtyFlag) \
    (reinterpret_cast<RenderNode*>(renderNodePtr)->mutateStagingProperties().prop(val) \
        ? (reinterpret_cast<RenderNode*>(renderNodePtr)->setPropertyFieldsDirty(dirtyFlag), true) \
        : false)

// ----------------------------------------------------------------------------
// DisplayList view properties
// ----------------------------------------------------------------------------

static void android_view_RenderNode_output(JNIEnv* env, jobject clazz, jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->output();
}

static jint android_view_RenderNode_getUsageSize(JNIEnv* env, jobject clazz, jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->getUsageSize();
}

static jint android_view_RenderNode_getAllocatedSize(JNIEnv* env, jobject clazz, jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->getAllocatedSize();
}

static jlong android_view_RenderNode_create(JNIEnv* env, jobject, jstring name) {
    RenderNode* renderNode = new RenderNode();
    renderNode->incStrong(0);
    if (name != NULL) {
        const char* textArray = env->GetStringUTFChars(name, NULL);
        renderNode->setName(textArray);
        env->ReleaseStringUTFChars(name, textArray);
    }
    return reinterpret_cast<jlong>(renderNode);
}

static void releaseRenderNode(RenderNode* renderNode) {
    renderNode->decStrong(0);
}

static jlong android_view_RenderNode_getNativeFinalizer(JNIEnv* env,
        jobject clazz) {
    return static_cast<jlong>(reinterpret_cast<uintptr_t>(&releaseRenderNode));
}

static void android_view_RenderNode_discardDisplayList(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->discardStagingDisplayList();
}

static jboolean android_view_RenderNode_isValid(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->isValid();
}

// ----------------------------------------------------------------------------
// RenderProperties - setters
// ----------------------------------------------------------------------------

static jboolean android_view_RenderNode_setLayerType(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jint jlayerType) {
    LayerType layerType = static_cast<LayerType>(jlayerType);
    return SET_AND_DIRTY(mutateLayerProperties().setType, layerType, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setLayerPaint(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jlong paintPtr) {
    Paint* paint = reinterpret_cast<Paint*>(paintPtr);
    return SET_AND_DIRTY(mutateLayerProperties().setFromPaint, paint, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setStaticMatrix(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jlong matrixPtr) {
    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
    return SET_AND_DIRTY(setStaticMatrix, matrix, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setAnimationMatrix(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jlong matrixPtr) {
    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
    return SET_AND_DIRTY(setAnimationMatrix, matrix, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setClipToBounds(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jboolean clipToBounds) {
    return SET_AND_DIRTY(setClipToBounds, clipToBounds, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setClipBounds(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jint left, jint top, jint right, jint bottom) {
    android::uirenderer::Rect clipBounds(left, top, right, bottom);
    return SET_AND_DIRTY(setClipBounds, clipBounds, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setClipBoundsEmpty(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return SET_AND_DIRTY(setClipBoundsEmpty,, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setProjectBackwards(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jboolean shouldProject) {
    return SET_AND_DIRTY(setProjectBackwards, shouldProject, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setProjectionReceiver(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jboolean shouldRecieve) {
    return SET_AND_DIRTY(setProjectionReceiver, shouldRecieve, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setOutlineRoundRect(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jint left, jint top, jint right, jint bottom, jfloat radius, jfloat alpha) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().mutableOutline().setRoundRect(left, top, right, bottom,
            radius, alpha);
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_setOutlinePath(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jlong outlinePathPtr, jfloat alpha) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    SkPath* outlinePath = reinterpret_cast<SkPath*>(outlinePathPtr);
    renderNode->mutateStagingProperties().mutableOutline().setPath(outlinePath, alpha);
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_setOutlineEmpty(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().mutableOutline().setEmpty();
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_setOutlineNone(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().mutableOutline().setNone();
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_clearStretch(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    auto& stretch = renderNode->mutateStagingProperties()
            .mutateLayerProperties().mutableStretchEffect();
    if (stretch.isEmpty()) {
        return false;
    }
    stretch.setEmpty();
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_stretch(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
                                                jfloat vX, jfloat vY, jfloat maxX,
                                                jfloat maxY) {
    auto* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    StretchEffect effect = StretchEffect({.fX = vX, .fY = vY}, maxX, maxY);
    renderNode->mutateStagingProperties().mutateLayerProperties().mutableStretchEffect().mergeWith(
            effect);
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_hasShadow(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().hasShadow();
}

static jboolean android_view_RenderNode_setSpotShadowColor(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jint shadowColor) {
    return SET_AND_DIRTY(setSpotShadowColor,
            static_cast<SkColor>(shadowColor), RenderNode::GENERIC);
}

static jint android_view_RenderNode_getSpotShadowColor(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getSpotShadowColor();
}

static jboolean android_view_RenderNode_setAmbientShadowColor(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jint shadowColor) {
    return SET_AND_DIRTY(setAmbientShadowColor,
            static_cast<SkColor>(shadowColor), RenderNode::GENERIC);
}

static jint android_view_RenderNode_getAmbientShadowColor(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getAmbientShadowColor();
}

static jboolean android_view_RenderNode_setClipToOutline(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jboolean clipToOutline) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().mutableOutline().setShouldClip(clipToOutline);
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_setRevealClip(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jboolean shouldClip,
        jfloat x, jfloat y, jfloat radius) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().mutableRevealClip().set(
            shouldClip, x, y, radius);
    renderNode->setPropertyFieldsDirty(RenderNode::GENERIC);
    return true;
}

static jboolean android_view_RenderNode_setAlpha(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float alpha) {
    return SET_AND_DIRTY(setAlpha, alpha, RenderNode::ALPHA);
}

static jboolean android_view_RenderNode_setRenderEffect(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jlong renderEffectPtr) {
    SkImageFilter* imageFilter = reinterpret_cast<SkImageFilter*>(renderEffectPtr);
    return SET_AND_DIRTY(mutateLayerProperties().setImageFilter, imageFilter, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setHasOverlappingRendering(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        bool hasOverlappingRendering) {
    return SET_AND_DIRTY(setHasOverlappingRendering, hasOverlappingRendering,
            RenderNode::GENERIC);
}

static void android_view_RenderNode_setUsageHint(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jint usageHint) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->setUsageHint(static_cast<UsageHint>(usageHint));
}

static jboolean android_view_RenderNode_setElevation(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float elevation) {
    return SET_AND_DIRTY(setElevation, elevation, RenderNode::Z);
}

static jboolean android_view_RenderNode_setTranslationX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float tx) {
    return SET_AND_DIRTY(setTranslationX, tx, RenderNode::TRANSLATION_X | RenderNode::X);
}

static jboolean android_view_RenderNode_setTranslationY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float ty) {
    return SET_AND_DIRTY(setTranslationY, ty, RenderNode::TRANSLATION_Y | RenderNode::Y);
}

static jboolean android_view_RenderNode_setTranslationZ(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float tz) {
    return SET_AND_DIRTY(setTranslationZ, tz, RenderNode::TRANSLATION_Z | RenderNode::Z);
}

static jboolean android_view_RenderNode_setRotation(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float rotation) {
    return SET_AND_DIRTY(setRotation, rotation, RenderNode::ROTATION);
}

static jboolean android_view_RenderNode_setRotationX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float rx) {
    return SET_AND_DIRTY(setRotationX, rx, RenderNode::ROTATION_X);
}

static jboolean android_view_RenderNode_setRotationY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float ry) {
    return SET_AND_DIRTY(setRotationY, ry, RenderNode::ROTATION_Y);
}

static jboolean android_view_RenderNode_setScaleX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float sx) {
    return SET_AND_DIRTY(setScaleX, sx, RenderNode::SCALE_X);
}

static jboolean android_view_RenderNode_setScaleY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float sy) {
    return SET_AND_DIRTY(setScaleY, sy, RenderNode::SCALE_Y);
}

static jboolean android_view_RenderNode_setPivotX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float px) {
    return SET_AND_DIRTY(setPivotX, px, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setPivotY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float py) {
    return SET_AND_DIRTY(setPivotY, py, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_resetPivot(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return SET_AND_DIRTY(resetPivot, /* void */, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setCameraDistance(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, float distance) {
    return SET_AND_DIRTY(setCameraDistance, distance, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_setLeft(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, int left) {
    return SET_AND_DIRTY(setLeft, left, RenderNode::X);
}

static jboolean android_view_RenderNode_setTop(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, int top) {
    return SET_AND_DIRTY(setTop, top, RenderNode::Y);
}

static jboolean android_view_RenderNode_setRight(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, int right) {
    return SET_AND_DIRTY(setRight, right, RenderNode::X);
}

static jboolean android_view_RenderNode_setBottom(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, int bottom) {
    return SET_AND_DIRTY(setBottom, bottom, RenderNode::Y);
}

static jint android_view_RenderNode_getLeft(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->stagingProperties().getLeft();
}

static jint android_view_RenderNode_getTop(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->stagingProperties().getTop();
}

static jint android_view_RenderNode_getRight(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->stagingProperties().getRight();
}

static jint android_view_RenderNode_getBottom(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->stagingProperties().getBottom();
}

static jboolean android_view_RenderNode_setLeftTopRightBottom(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        int left, int top, int right, int bottom) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    if (renderNode->mutateStagingProperties().setLeftTopRightBottom(left, top, right, bottom)) {
        renderNode->setPropertyFieldsDirty(RenderNode::X | RenderNode::Y);
        return true;
    }
    return false;
}

static jboolean android_view_RenderNode_offsetLeftAndRight(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jint offset) {
    return SET_AND_DIRTY(offsetLeftRight, offset, RenderNode::X);
}

static jboolean android_view_RenderNode_offsetTopAndBottom(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jint offset) {
    return SET_AND_DIRTY(offsetTopBottom, offset, RenderNode::Y);
}

// ----------------------------------------------------------------------------
// RenderProperties - getters
// ----------------------------------------------------------------------------

static jboolean android_view_RenderNode_hasOverlappingRendering(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().hasOverlappingRendering();
}

static jboolean android_view_RenderNode_getAnimationMatrix(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jlong outMatrixPtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    SkMatrix* outMatrix = reinterpret_cast<SkMatrix*>(outMatrixPtr);

    const SkMatrix* animationMatrix = renderNode->stagingProperties().getAnimationMatrix();

    if (animationMatrix) {
        *outMatrix = *animationMatrix;
        return JNI_TRUE;
    }
    return JNI_FALSE;
}

static jboolean android_view_RenderNode_getClipToBounds(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getClipToBounds();
}

static jboolean android_view_RenderNode_getClipToOutline(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getOutline().getShouldClip();
}

static jfloat android_view_RenderNode_getAlpha(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getAlpha();
}

static jfloat android_view_RenderNode_getCameraDistance(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getCameraDistance();
}

static jfloat android_view_RenderNode_getScaleX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getScaleX();
}

static jfloat android_view_RenderNode_getScaleY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getScaleY();
}

static jfloat android_view_RenderNode_getElevation(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getElevation();
}

static jfloat android_view_RenderNode_getTranslationX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getTranslationX();
}

static jfloat android_view_RenderNode_getTranslationY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getTranslationY();
}

static jfloat android_view_RenderNode_getTranslationZ(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getTranslationZ();
}

static jfloat android_view_RenderNode_getRotation(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getRotation();
}

static jfloat android_view_RenderNode_getRotationX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getRotationX();
}

static jfloat android_view_RenderNode_getRotationY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().getRotationY();
}

static jboolean android_view_RenderNode_isPivotExplicitlySet(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return renderNode->stagingProperties().isPivotExplicitlySet();
}

static jboolean android_view_RenderNode_hasIdentityMatrix(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().updateMatrix();
    return !renderNode->stagingProperties().hasTransformMatrix();
}

static jint android_view_RenderNode_getLayerType(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    return static_cast<int>(renderNode->stagingProperties().layerProperties().type());
}

// ----------------------------------------------------------------------------
// RenderProperties - computed getters
// ----------------------------------------------------------------------------

static void getTransformMatrix(jlong renderNodePtr, jlong outMatrixPtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    SkMatrix* outMatrix = reinterpret_cast<SkMatrix*>(outMatrixPtr);

    renderNode->mutateStagingProperties().updateMatrix();
    const SkMatrix* transformMatrix = renderNode->stagingProperties().getTransformMatrix();

    if (transformMatrix) {
        *outMatrix = *transformMatrix;
    } else {
        outMatrix->setIdentity();
    }
}

static void android_view_RenderNode_getTransformMatrix(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jlong outMatrixPtr) {
    getTransformMatrix(renderNodePtr, outMatrixPtr);
}

static void android_view_RenderNode_getInverseTransformMatrix(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr,
        jlong outMatrixPtr) {
    // load transform matrix
    getTransformMatrix(renderNodePtr, outMatrixPtr);
    SkMatrix* outMatrix = reinterpret_cast<SkMatrix*>(outMatrixPtr);

    // return it inverted
    if (!outMatrix->invert(outMatrix)) {
        // failed to load inverse, pass back identity
        outMatrix->setIdentity();
    }
}

static jfloat android_view_RenderNode_getPivotX(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().updateMatrix();
    return renderNode->stagingProperties().getPivotX();
}

static jfloat android_view_RenderNode_getPivotY(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->mutateStagingProperties().updateMatrix();
    return renderNode->stagingProperties().getPivotY();
}

static jint android_view_RenderNode_getWidth(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->stagingProperties().getWidth();
}

static jint android_view_RenderNode_getHeight(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->stagingProperties().getHeight();
}

static jboolean android_view_RenderNode_setAllowForceDark(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr, jboolean allow) {
    return SET_AND_DIRTY(setAllowForceDark, allow, RenderNode::GENERIC);
}

static jboolean android_view_RenderNode_getAllowForceDark(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->stagingProperties().getAllowForceDark();
}

static jlong android_view_RenderNode_getUniqueId(CRITICAL_JNI_PARAMS_COMMA jlong renderNodePtr) {
    return reinterpret_cast<RenderNode*>(renderNodePtr)->uniqueId();
}

// ----------------------------------------------------------------------------
// RenderProperties - Animations
// ----------------------------------------------------------------------------

static void android_view_RenderNode_addAnimator(JNIEnv* env, jobject clazz, jlong renderNodePtr,
        jlong animatorPtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    RenderPropertyAnimator* animator = reinterpret_cast<RenderPropertyAnimator*>(animatorPtr);
    renderNode->addAnimator(animator);
}

static void android_view_RenderNode_endAllAnimators(JNIEnv* env, jobject clazz,
        jlong renderNodePtr) {
    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->animators().endAllStagingAnimators();
}

// ----------------------------------------------------------------------------
// SurfaceView position callback
// ----------------------------------------------------------------------------

jmethodID gPositionListener_PositionChangedMethod;
jmethodID gPositionListener_ApplyStretchMethod;
jmethodID gPositionListener_PositionLostMethod;

static void android_view_RenderNode_requestPositionUpdates(JNIEnv* env, jobject,
        jlong renderNodePtr, jobject listener) {
    class PositionListenerTrampoline : public RenderNode::PositionListener {
    public:
        PositionListenerTrampoline(JNIEnv* env, jobject listener) {
            env->GetJavaVM(&mVm);
            mWeakRef = env->NewWeakGlobalRef(listener);
        }

        virtual ~PositionListenerTrampoline() {
            jnienv()->DeleteWeakGlobalRef(mWeakRef);
            mWeakRef = nullptr;
        }

        virtual void onPositionUpdated(RenderNode& node, const TreeInfo& info) override {
            if (CC_UNLIKELY(!mWeakRef || !info.updateWindowPositions)) return;

            Matrix4 transform;
            info.damageAccumulator->computeCurrentTransform(&transform);
            const RenderProperties& props = node.properties();

            uirenderer::Rect bounds(props.getWidth(), props.getHeight());
            bool useStretchShader =
                    Properties::getStretchEffectBehavior() != StretchEffectBehavior::UniformScale;
            if (useStretchShader && info.stretchEffectCount) {
                handleStretchEffect(info, bounds);
            }

            transform.mapRect(bounds);

            if (CC_LIKELY(transform.isPureTranslate())) {
                // snap/round the computed bounds, so they match the rounding behavior
                // of the clear done in SurfaceView#draw().
                bounds.snapGeometryToPixelBoundaries(false);
            } else {
                // Conservatively round out so the punched hole (in the ZOrderOnTop = true case)
                // doesn't extend beyond the other window
                bounds.roundOut();
            }

            if (mPreviousPosition == bounds) {
                return;
            }
            mPreviousPosition = bounds;

#ifdef __ANDROID__ // Layoutlib does not support CanvasContext
            incStrong(0);
            auto functor = std::bind(
                std::mem_fn(&PositionListenerTrampoline::doUpdatePositionAsync), this,
                (jlong) info.canvasContext.getFrameNumber(),
                (jint) bounds.left, (jint) bounds.top,
                (jint) bounds.right, (jint) bounds.bottom);

            info.canvasContext.enqueueFrameWork(std::move(functor));
#endif
        }

        virtual void onPositionLost(RenderNode& node, const TreeInfo* info) override {
            if (CC_UNLIKELY(!mWeakRef || (info && !info->updateWindowPositions))) return;

            if (mPreviousPosition.isEmpty()) {
                return;
            }
            mPreviousPosition.setEmpty();

            ATRACE_NAME("SurfaceView position lost");
            JNIEnv* env = jnienv();
            jobject localref = env->NewLocalRef(mWeakRef);
            if (CC_UNLIKELY(!localref)) {
                env->DeleteWeakGlobalRef(mWeakRef);
                mWeakRef = nullptr;
                return;
            }
#ifdef __ANDROID__ // Layoutlib does not support CanvasContext
            // TODO: Remember why this is synchronous and then make a comment
            env->CallVoidMethod(localref, gPositionListener_PositionLostMethod,
                    info ? info->canvasContext.getFrameNumber() : 0);
#endif
            env->DeleteLocalRef(localref);
        }

    private:
        JNIEnv* jnienv() {
            JNIEnv* env;
            if (mVm->GetEnv(reinterpret_cast<void**>(&env), JNI_VERSION_1_6) != JNI_OK) {
                LOG_ALWAYS_FATAL("Failed to get JNIEnv for JavaVM: %p", mVm);
            }
            return env;
        }

        void stretchTargetBounds(const StretchEffect& stretchEffect,
                                 float width, float height,
                                 const SkRect& childRelativeBounds,
                                 uirenderer::Rect& bounds) {
              float normalizedLeft = childRelativeBounds.left() / width;
              float normalizedTop = childRelativeBounds.top() / height;
              float normalizedRight = childRelativeBounds.right() / width;
              float normalizedBottom = childRelativeBounds.bottom() / height;
              float reverseLeft = width *
                  (stretchEffect.computeStretchedPositionX(normalizedLeft) -
                    normalizedLeft);
              float reverseTop = height *
                  (stretchEffect.computeStretchedPositionY(normalizedTop) -
                    normalizedTop);
              float reverseRight = width *
                  (stretchEffect.computeStretchedPositionX(normalizedRight) -
                    normalizedLeft);
              float reverseBottom = height *
                  (stretchEffect.computeStretchedPositionY(normalizedBottom) -
                    normalizedTop);
              bounds.left = reverseLeft;
              bounds.top = reverseTop;
              bounds.right = reverseRight;
              bounds.bottom = reverseBottom;
        }

        void handleStretchEffect(const TreeInfo& info, uirenderer::Rect& targetBounds) {
            // Search up to find the nearest stretcheffect parent
            const DamageAccumulator::StretchResult result =
                info.damageAccumulator->findNearestStretchEffect();
            const StretchEffect* effect = result.stretchEffect;
            if (!effect) {
                return;
            }

            const auto& childRelativeBounds = result.childRelativeBounds;
            stretchTargetBounds(*effect, result.width, result.height,
                                childRelativeBounds,targetBounds);

            if (Properties::getStretchEffectBehavior() ==
                StretchEffectBehavior::Shader) {
                JNIEnv* env = jnienv();

                jobject localref = env->NewLocalRef(mWeakRef);
                if (CC_UNLIKELY(!localref)) {
                    env->DeleteWeakGlobalRef(mWeakRef);
                    mWeakRef = nullptr;
                    return;
                }
#ifdef __ANDROID__  // Layoutlib does not support CanvasContext
                SkVector stretchDirection = effect->getStretchDirection();
                env->CallVoidMethod(localref, gPositionListener_ApplyStretchMethod,
                                    info.canvasContext.getFrameNumber(),
                                    result.width,
                                    result.height,
                                    stretchDirection.fX,
                                    stretchDirection.fY,
                                    effect->maxStretchAmountX,
                                    effect->maxStretchAmountY,
                                    childRelativeBounds.left(),
                                    childRelativeBounds.top(),
                                    childRelativeBounds.right(),
                                    childRelativeBounds.bottom());
#endif
                env->DeleteLocalRef(localref);
            }
        }

        void doUpdatePositionAsync(jlong frameNumber, jint left, jint top,
                jint right, jint bottom) {
            ATRACE_NAME("Update SurfaceView position");

            JNIEnv* env = jnienv();
            jobject localref = env->NewLocalRef(mWeakRef);
            if (CC_UNLIKELY(!localref)) {
                env->DeleteWeakGlobalRef(mWeakRef);
                mWeakRef = nullptr;
            } else {
                env->CallVoidMethod(localref, gPositionListener_PositionChangedMethod,
                        frameNumber, left, top, right, bottom);
                env->DeleteLocalRef(localref);
            }

            // We need to release ourselves here
            decStrong(0);
        }

        JavaVM* mVm;
        jobject mWeakRef;
        uirenderer::Rect mPreviousPosition;
    };

    RenderNode* renderNode = reinterpret_cast<RenderNode*>(renderNodePtr);
    renderNode->setPositionListener(new PositionListenerTrampoline(env, listener));
}

// ----------------------------------------------------------------------------
// JNI Glue
// ----------------------------------------------------------------------------

const char* const kClassPathName = "android/graphics/RenderNode";

static const JNINativeMethod gMethods[] = {
        // ----------------------------------------------------------------------------
        // Regular JNI
        // ----------------------------------------------------------------------------
        {"nCreate", "(Ljava/lang/String;)J", (void*)android_view_RenderNode_create},
        {"nGetNativeFinalizer", "()J", (void*)android_view_RenderNode_getNativeFinalizer},
        {"nOutput", "(J)V", (void*)android_view_RenderNode_output},
        {"nGetUsageSize", "(J)I", (void*)android_view_RenderNode_getUsageSize},
        {"nGetAllocatedSize", "(J)I", (void*)android_view_RenderNode_getAllocatedSize},
        {"nAddAnimator", "(JJ)V", (void*)android_view_RenderNode_addAnimator},
        {"nEndAllAnimators", "(J)V", (void*)android_view_RenderNode_endAllAnimators},
        {"nRequestPositionUpdates", "(JLandroid/graphics/RenderNode$PositionUpdateListener;)V",
         (void*)android_view_RenderNode_requestPositionUpdates},

        // ----------------------------------------------------------------------------
        // Critical JNI via @CriticalNative annotation in RenderNode.java
        // ----------------------------------------------------------------------------
        {"nDiscardDisplayList", "(J)V", (void*)android_view_RenderNode_discardDisplayList},
        {"nIsValid", "(J)Z", (void*)android_view_RenderNode_isValid},
        {"nSetLayerType", "(JI)Z", (void*)android_view_RenderNode_setLayerType},
        {"nGetLayerType", "(J)I", (void*)android_view_RenderNode_getLayerType},
        {"nSetLayerPaint", "(JJ)Z", (void*)android_view_RenderNode_setLayerPaint},
        {"nSetStaticMatrix", "(JJ)Z", (void*)android_view_RenderNode_setStaticMatrix},
        {"nSetAnimationMatrix", "(JJ)Z", (void*)android_view_RenderNode_setAnimationMatrix},
        {"nGetAnimationMatrix", "(JJ)Z", (void*)android_view_RenderNode_getAnimationMatrix},
        {"nSetClipToBounds", "(JZ)Z", (void*)android_view_RenderNode_setClipToBounds},
        {"nGetClipToBounds", "(J)Z", (void*)android_view_RenderNode_getClipToBounds},
        {"nSetClipBounds", "(JIIII)Z", (void*)android_view_RenderNode_setClipBounds},
        {"nSetClipBoundsEmpty", "(J)Z", (void*)android_view_RenderNode_setClipBoundsEmpty},
        {"nSetProjectBackwards", "(JZ)Z", (void*)android_view_RenderNode_setProjectBackwards},
        {"nSetProjectionReceiver", "(JZ)Z", (void*)android_view_RenderNode_setProjectionReceiver},

        {"nSetOutlineRoundRect", "(JIIIIFF)Z", (void*)android_view_RenderNode_setOutlineRoundRect},
        {"nSetOutlinePath", "(JJF)Z", (void*)android_view_RenderNode_setOutlinePath},
        {"nSetOutlineEmpty", "(J)Z", (void*)android_view_RenderNode_setOutlineEmpty},
        {"nSetOutlineNone", "(J)Z", (void*)android_view_RenderNode_setOutlineNone},
        {"nClearStretch", "(J)Z", (void*)android_view_RenderNode_clearStretch},
        {"nStretch", "(JFFFF)Z", (void*)android_view_RenderNode_stretch},
        {"nHasShadow", "(J)Z", (void*)android_view_RenderNode_hasShadow},
        {"nSetSpotShadowColor", "(JI)Z", (void*)android_view_RenderNode_setSpotShadowColor},
        {"nGetSpotShadowColor", "(J)I", (void*)android_view_RenderNode_getSpotShadowColor},
        {"nSetAmbientShadowColor", "(JI)Z", (void*)android_view_RenderNode_setAmbientShadowColor},
        {"nGetAmbientShadowColor", "(J)I", (void*)android_view_RenderNode_getAmbientShadowColor},
        {"nSetClipToOutline", "(JZ)Z", (void*)android_view_RenderNode_setClipToOutline},
        {"nSetRevealClip", "(JZFFF)Z", (void*)android_view_RenderNode_setRevealClip},

        {"nSetAlpha", "(JF)Z", (void*)android_view_RenderNode_setAlpha},
        {"nSetRenderEffect", "(JJ)Z", (void*)android_view_RenderNode_setRenderEffect},
        {"nSetHasOverlappingRendering", "(JZ)Z",
         (void*)android_view_RenderNode_setHasOverlappingRendering},
        {"nSetUsageHint", "(JI)V", (void*)android_view_RenderNode_setUsageHint},
        {"nSetElevation", "(JF)Z", (void*)android_view_RenderNode_setElevation},
        {"nSetTranslationX", "(JF)Z", (void*)android_view_RenderNode_setTranslationX},
        {"nSetTranslationY", "(JF)Z", (void*)android_view_RenderNode_setTranslationY},
        {"nSetTranslationZ", "(JF)Z", (void*)android_view_RenderNode_setTranslationZ},
        {"nSetRotation", "(JF)Z", (void*)android_view_RenderNode_setRotation},
        {"nSetRotationX", "(JF)Z", (void*)android_view_RenderNode_setRotationX},
        {"nSetRotationY", "(JF)Z", (void*)android_view_RenderNode_setRotationY},
        {"nSetScaleX", "(JF)Z", (void*)android_view_RenderNode_setScaleX},
        {"nSetScaleY", "(JF)Z", (void*)android_view_RenderNode_setScaleY},
        {"nSetPivotX", "(JF)Z", (void*)android_view_RenderNode_setPivotX},
        {"nSetPivotY", "(JF)Z", (void*)android_view_RenderNode_setPivotY},
        {"nResetPivot", "(J)Z", (void*)android_view_RenderNode_resetPivot},
        {"nSetCameraDistance", "(JF)Z", (void*)android_view_RenderNode_setCameraDistance},
        {"nSetLeft", "(JI)Z", (void*)android_view_RenderNode_setLeft},
        {"nSetTop", "(JI)Z", (void*)android_view_RenderNode_setTop},
        {"nSetRight", "(JI)Z", (void*)android_view_RenderNode_setRight},
        {"nSetBottom", "(JI)Z", (void*)android_view_RenderNode_setBottom},
        {"nGetLeft", "(J)I", (void*)android_view_RenderNode_getLeft},
        {"nGetTop", "(J)I", (void*)android_view_RenderNode_getTop},
        {"nGetRight", "(J)I", (void*)android_view_RenderNode_getRight},
        {"nGetBottom", "(J)I", (void*)android_view_RenderNode_getBottom},
        {"nSetLeftTopRightBottom", "(JIIII)Z",
         (void*)android_view_RenderNode_setLeftTopRightBottom},
        {"nOffsetLeftAndRight", "(JI)Z", (void*)android_view_RenderNode_offsetLeftAndRight},
        {"nOffsetTopAndBottom", "(JI)Z", (void*)android_view_RenderNode_offsetTopAndBottom},

        {"nHasOverlappingRendering", "(J)Z",
         (void*)android_view_RenderNode_hasOverlappingRendering},
        {"nGetClipToOutline", "(J)Z", (void*)android_view_RenderNode_getClipToOutline},
        {"nGetAlpha", "(J)F", (void*)android_view_RenderNode_getAlpha},
        {"nGetCameraDistance", "(J)F", (void*)android_view_RenderNode_getCameraDistance},
        {"nGetScaleX", "(J)F", (void*)android_view_RenderNode_getScaleX},
        {"nGetScaleY", "(J)F", (void*)android_view_RenderNode_getScaleY},
        {"nGetElevation", "(J)F", (void*)android_view_RenderNode_getElevation},
        {"nGetTranslationX", "(J)F", (void*)android_view_RenderNode_getTranslationX},
        {"nGetTranslationY", "(J)F", (void*)android_view_RenderNode_getTranslationY},
        {"nGetTranslationZ", "(J)F", (void*)android_view_RenderNode_getTranslationZ},
        {"nGetRotation", "(J)F", (void*)android_view_RenderNode_getRotation},
        {"nGetRotationX", "(J)F", (void*)android_view_RenderNode_getRotationX},
        {"nGetRotationY", "(J)F", (void*)android_view_RenderNode_getRotationY},
        {"nIsPivotExplicitlySet", "(J)Z", (void*)android_view_RenderNode_isPivotExplicitlySet},
        {"nHasIdentityMatrix", "(J)Z", (void*)android_view_RenderNode_hasIdentityMatrix},

        {"nGetTransformMatrix", "(JJ)V", (void*)android_view_RenderNode_getTransformMatrix},
        {"nGetInverseTransformMatrix", "(JJ)V",
         (void*)android_view_RenderNode_getInverseTransformMatrix},

        {"nGetPivotX", "(J)F", (void*)android_view_RenderNode_getPivotX},
        {"nGetPivotY", "(J)F", (void*)android_view_RenderNode_getPivotY},
        {"nGetWidth", "(J)I", (void*)android_view_RenderNode_getWidth},
        {"nGetHeight", "(J)I", (void*)android_view_RenderNode_getHeight},
        {"nSetAllowForceDark", "(JZ)Z", (void*)android_view_RenderNode_setAllowForceDark},
        {"nGetAllowForceDark", "(J)Z", (void*)android_view_RenderNode_getAllowForceDark},
        {"nGetUniqueId", "(J)J", (void*)android_view_RenderNode_getUniqueId},
};

int register_android_view_RenderNode(JNIEnv* env) {
    jclass clazz = FindClassOrDie(env, "android/graphics/RenderNode$PositionUpdateListener");
    gPositionListener_PositionChangedMethod = GetMethodIDOrDie(env, clazz,
            "positionChanged", "(JIIII)V");
    gPositionListener_ApplyStretchMethod =
            GetMethodIDOrDie(env, clazz, "applyStretch", "(JFFFFFFFFFF)V");
    gPositionListener_PositionLostMethod = GetMethodIDOrDie(env, clazz,
            "positionLost", "(J)V");
    return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
}

};