libs/hwui/RenderProperties.h - platform/frameworks/base - Gitiles

 /*
  * Copyright (C) 2014 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.
  */
 #ifndef RENDERNODEPROPERTIES_H
 #define RENDERNODEPROPERTIES_H

 #include "Caches.h"
 #include "DeviceInfo.h"
 #include "Rect.h"
 #include "RevealClip.h"
 #include "Outline.h"
 #include "utils/MathUtils.h"

 #include <SkCamera.h>
 #include <SkMatrix.h>
 #include <SkRegion.h>
 #include <SkXfermode.h>

 #include <algorithm>
 #include <stddef.h>
 #include <vector>
 #include <cutils/compiler.h>
 #include <androidfw/ResourceTypes.h>
 #include <utils/Log.h>

 class SkBitmap;
 class SkColorFilter;
 class SkPaint;

 namespace android {
 namespace uirenderer {

 class Matrix4;
 class RenderNode;
 class RenderProperties;

 // The __VA_ARGS__ will be executed if a & b are not equal
 #define RP_SET(a, b, ...) ((a) != (b) ? ((a) = (b), ##__VA_ARGS__, true) : false)
 #define RP_SET_AND_DIRTY(a, b) RP_SET(a, b, mPrimitiveFields.mMatrixOrPivotDirty = true)

 // Keep in sync with View.java:LAYER_TYPE_*
 enum class LayerType {
     None = 0,
     // Although we cannot build the software layer directly (must be done at
     // record time), this information is used when applying alpha.
     Software = 1,
     RenderLayer = 2,
     // TODO: LayerTypeSurfaceTexture? Maybe?
 };

 enum ClippingFlags {
     CLIP_TO_BOUNDS =      0x1 << 0,
     CLIP_TO_CLIP_BOUNDS = 0x1 << 1,
 };

 class ANDROID_API LayerProperties {
 public:
     bool setType(LayerType type) {
         if (RP_SET(mType, type)) {
             reset();
             return true;
         }
         return false;
     }

     bool setOpaque(bool opaque) {
         return RP_SET(mOpaque, opaque);
     }

     bool opaque() const {
         return mOpaque;
     }

     bool setAlpha(uint8_t alpha) {
         return RP_SET(mAlpha, alpha);
     }

     uint8_t alpha() const {
         return mAlpha;
     }

     bool setXferMode(SkXfermode::Mode mode) {
         return RP_SET(mMode, mode);
     }

     SkXfermode::Mode xferMode() const {
         return mMode;
     }

     bool setColorFilter(SkColorFilter* filter);

     SkColorFilter* colorFilter() const {
         return mColorFilter;
     }

     // Sets alpha, xfermode, and colorfilter from an SkPaint
     // paint may be NULL, in which case defaults will be set
     bool setFromPaint(const SkPaint* paint);

     bool needsBlending() const {
         return !opaque() || alpha() < 255;
     }

     LayerProperties& operator=(const LayerProperties& other);

 private:
     LayerProperties();
     ~LayerProperties();
     void reset();

     // Private since external users should go through properties().effectiveLayerType()
     LayerType type() const {
         return mType;
     }

     friend class RenderProperties;

     LayerType mType = LayerType::None;
     // Whether or not that Layer's content is opaque, doesn't include alpha
     bool mOpaque;
     uint8_t mAlpha;
     SkXfermode::Mode mMode;
     SkColorFilter* mColorFilter = nullptr;
 };

 /*
  * Data structure that holds the properties for a RenderNode
  */
 class ANDROID_API RenderProperties {
 public:
     RenderProperties();
     virtual ~RenderProperties();

     static bool setFlag(int flag, bool newValue, int* outFlags) {
         if (newValue) {
             if (!(flag & *outFlags)) {
                 *outFlags |= flag;
                 return true;
             }
             return false;
         } else {
             if (flag & *outFlags) {
                 *outFlags &= ~flag;
                 return true;
             }
             return false;
         }
     }

     /**
      * Set internal layer state based on whether this layer
      *
      * Additionally, returns true if child RenderNodes with functors will need to use a layer
      * to support clipping.
      */
     bool prepareForFunctorPresence(bool willHaveFunctor, bool ancestorDictatesFunctorsNeedLayer) {
         // parent may have already dictated that a descendant layer is needed
         bool functorsNeedLayer = ancestorDictatesFunctorsNeedLayer

                 // Round rect clipping forces layer for functors
                 || CC_UNLIKELY(getOutline().willRoundRectClip())
                 || CC_UNLIKELY(getRevealClip().willClip())

                 // Complex matrices forces layer, due to stencil clipping
                 || CC_UNLIKELY(getTransformMatrix() && !getTransformMatrix()->isScaleTranslate())
                 || CC_UNLIKELY(getAnimationMatrix() && !getAnimationMatrix()->isScaleTranslate())
                 || CC_UNLIKELY(getStaticMatrix() && !getStaticMatrix()->isScaleTranslate());

         mComputedFields.mNeedLayerForFunctors = (willHaveFunctor && functorsNeedLayer);

         // If on a layer, will have consumed the need for isolating functors from stencil.
         // Thus, it's safe to reset the flag until some descendent sets it.
         return CC_LIKELY(effectiveLayerType() == LayerType::None) && functorsNeedLayer;
     }

     RenderProperties& operator=(const RenderProperties& other);

     bool setClipToBounds(bool clipToBounds) {
         return setFlag(CLIP_TO_BOUNDS, clipToBounds, &mPrimitiveFields.mClippingFlags);
     }

     bool setClipBounds(const Rect& clipBounds) {
         bool ret = setFlag(CLIP_TO_CLIP_BOUNDS, true, &mPrimitiveFields.mClippingFlags);
         return RP_SET(mPrimitiveFields.mClipBounds, clipBounds) || ret;
     }

     bool setClipBoundsEmpty() {
         return setFlag(CLIP_TO_CLIP_BOUNDS, false, &mPrimitiveFields.mClippingFlags);
     }

     bool setProjectBackwards(bool shouldProject) {
         return RP_SET(mPrimitiveFields.mProjectBackwards, shouldProject);
     }

     bool setProjectionReceiver(bool shouldReceive) {
         return RP_SET(mPrimitiveFields.mProjectionReceiver, shouldReceive);
     }

     bool isProjectionReceiver() const {
         return mPrimitiveFields.mProjectionReceiver;
     }

     bool setStaticMatrix(const SkMatrix* matrix) {
         delete mStaticMatrix;
         if (matrix) {
             mStaticMatrix = new SkMatrix(*matrix);
         } else {
             mStaticMatrix = nullptr;
         }
         return true;
     }

     // Can return NULL
     const SkMatrix* getStaticMatrix() const {
         return mStaticMatrix;
     }

     bool setAnimationMatrix(const SkMatrix* matrix) {
         delete mAnimationMatrix;
         if (matrix) {
             mAnimationMatrix = new SkMatrix(*matrix);
         } else {
             mAnimationMatrix = nullptr;
         }
         return true;
     }

     bool setAlpha(float alpha) {
         alpha = MathUtils::clampAlpha(alpha);
         return RP_SET(mPrimitiveFields.mAlpha, alpha);
     }

     float getAlpha() const {
         return mPrimitiveFields.mAlpha;
     }

     bool setHasOverlappingRendering(bool hasOverlappingRendering) {
         return RP_SET(mPrimitiveFields.mHasOverlappingRendering, hasOverlappingRendering);
     }

     bool hasOverlappingRendering() const {
         return mPrimitiveFields.mHasOverlappingRendering;
     }

     bool setElevation(float elevation) {
         return RP_SET(mPrimitiveFields.mElevation, elevation);
         // Don't dirty matrix/pivot, since they don't respect Z
     }

     float getElevation() const {
         return mPrimitiveFields.mElevation;
     }

     bool setTranslationX(float translationX) {
         return RP_SET_AND_DIRTY(mPrimitiveFields.mTranslationX, translationX);
     }

     float getTranslationX() const {
         return mPrimitiveFields.mTranslationX;
     }

     bool setTranslationY(float translationY) {
         return RP_SET_AND_DIRTY(mPrimitiveFields.mTranslationY, translationY);
     }

     float getTranslationY() const {
         return mPrimitiveFields.mTranslationY;
     }

     bool setTranslationZ(float translationZ) {
         return RP_SET(mPrimitiveFields.mTranslationZ, translationZ);
         // mMatrixOrPivotDirty not set, since matrix doesn't respect Z
     }

     float getTranslationZ() const {
         return mPrimitiveFields.mTranslationZ;
     }

     // Animation helper
     bool setX(float value) {
         return setTranslationX(value - getLeft());
     }

     // Animation helper
     float getX() const {
         return getLeft() + getTranslationX();
     }

     // Animation helper
     bool setY(float value) {
         return setTranslationY(value - getTop());
     }

     // Animation helper
     float getY() const {
         return getTop() + getTranslationY();
     }

     // Animation helper
     bool setZ(float value) {
         return setTranslationZ(value - getElevation());
     }

     float getZ() const {
         return getElevation() + getTranslationZ();
     }

     bool setRotation(float rotation) {
         return RP_SET_AND_DIRTY(mPrimitiveFields.mRotation, rotation);
     }

     float getRotation() const {
         return mPrimitiveFields.mRotation;
     }

     bool setRotationX(float rotationX) {
         return RP_SET_AND_DIRTY(mPrimitiveFields.mRotationX, rotationX);
     }

     float getRotationX() const {
         return mPrimitiveFields.mRotationX;
     }

     bool setRotationY(float rotationY) {
         return RP_SET_AND_DIRTY(mPrimitiveFields.mRotationY, rotationY);
     }

     float getRotationY() const {
         return mPrimitiveFields.mRotationY;
     }

     bool setScaleX(float scaleX) {
         return RP_SET_AND_DIRTY(mPrimitiveFields.mScaleX, scaleX);
     }

     float getScaleX() const {
         return mPrimitiveFields.mScaleX;
     }

     bool setScaleY(float scaleY) {
         return RP_SET_AND_DIRTY(mPrimitiveFields.mScaleY, scaleY);
     }

     float getScaleY() const {
         return mPrimitiveFields.mScaleY;
     }

     bool setPivotX(float pivotX) {
         if (RP_SET(mPrimitiveFields.mPivotX, pivotX)
                 || !mPrimitiveFields.mPivotExplicitlySet) {
             mPrimitiveFields.mMatrixOrPivotDirty = true;
             mPrimitiveFields.mPivotExplicitlySet = true;
             return true;
         }
         return false;
     }

     /* Note that getPivotX and getPivotY are adjusted by updateMatrix(),
      * so the value returned may be stale if the RenderProperties has been
      * modified since the last call to updateMatrix()
      */
     float getPivotX() const {
         return mPrimitiveFields.mPivotX;
     }

     bool setPivotY(float pivotY) {
         if (RP_SET(mPrimitiveFields.mPivotY, pivotY)
                 || !mPrimitiveFields.mPivotExplicitlySet) {
             mPrimitiveFields.mMatrixOrPivotDirty = true;
             mPrimitiveFields.mPivotExplicitlySet = true;
             return true;
         }
         return false;
     }

     float getPivotY() const {
         return mPrimitiveFields.mPivotY;
     }

     bool isPivotExplicitlySet() const {
         return mPrimitiveFields.mPivotExplicitlySet;
     }

     bool setCameraDistance(float distance) {
         if (distance != getCameraDistance()) {
             mPrimitiveFields.mMatrixOrPivotDirty = true;
             mComputedFields.mTransformCamera.setCameraLocation(0, 0, distance);
             return true;
         }
         return false;
     }

     float getCameraDistance() const {
         // TODO: update getCameraLocationZ() to be const
         return const_cast<Sk3DView*>(&mComputedFields.mTransformCamera)->getCameraLocationZ();
     }

     bool setLeft(int left) {
         if (RP_SET(mPrimitiveFields.mLeft, left)) {
             mPrimitiveFields.mWidth = mPrimitiveFields.mRight - mPrimitiveFields.mLeft;
             if (!mPrimitiveFields.mPivotExplicitlySet) {
                 mPrimitiveFields.mMatrixOrPivotDirty = true;
             }
             return true;
         }
         return false;
     }

     int getLeft() const {
         return mPrimitiveFields.mLeft;
     }

     bool setTop(int top) {
         if (RP_SET(mPrimitiveFields.mTop, top)) {
             mPrimitiveFields.mHeight = mPrimitiveFields.mBottom - mPrimitiveFields.mTop;
             if (!mPrimitiveFields.mPivotExplicitlySet) {
                 mPrimitiveFields.mMatrixOrPivotDirty = true;
             }
             return true;
         }
         return false;
     }

     int getTop() const {
         return mPrimitiveFields.mTop;
     }

     bool setRight(int right) {
         if (RP_SET(mPrimitiveFields.mRight, right)) {
             mPrimitiveFields.mWidth = mPrimitiveFields.mRight - mPrimitiveFields.mLeft;
             if (!mPrimitiveFields.mPivotExplicitlySet) {
                 mPrimitiveFields.mMatrixOrPivotDirty = true;
             }
             return true;
         }
         return false;
     }

     int getRight() const {
         return mPrimitiveFields.mRight;
     }

     bool setBottom(int bottom) {
         if (RP_SET(mPrimitiveFields.mBottom, bottom)) {
             mPrimitiveFields.mHeight = mPrimitiveFields.mBottom - mPrimitiveFields.mTop;
             if (!mPrimitiveFields.mPivotExplicitlySet) {
                 mPrimitiveFields.mMatrixOrPivotDirty = true;
             }
             return true;
         }
         return false;
     }

     int getBottom() const {
         return mPrimitiveFields.mBottom;
     }

     bool setLeftTop(int left, int top) {
         bool leftResult = setLeft(left);
         bool topResult = setTop(top);
         return leftResult || topResult;
     }

     bool setLeftTopRightBottom(int left, int top, int right, int bottom) {
         if (left != mPrimitiveFields.mLeft || top != mPrimitiveFields.mTop
                 || right != mPrimitiveFields.mRight || bottom != mPrimitiveFields.mBottom) {
             mPrimitiveFields.mLeft = left;
             mPrimitiveFields.mTop = top;
             mPrimitiveFields.mRight = right;
             mPrimitiveFields.mBottom = bottom;
             mPrimitiveFields.mWidth = mPrimitiveFields.mRight - mPrimitiveFields.mLeft;
             mPrimitiveFields.mHeight = mPrimitiveFields.mBottom - mPrimitiveFields.mTop;
             if (!mPrimitiveFields.mPivotExplicitlySet) {
                 mPrimitiveFields.mMatrixOrPivotDirty = true;
             }
             return true;
         }
         return false;
     }

     bool offsetLeftRight(int offset) {
         if (offset != 0) {
             mPrimitiveFields.mLeft += offset;
             mPrimitiveFields.mRight += offset;
             return true;
         }
         return false;
     }

     bool offsetTopBottom(int offset) {
         if (offset != 0) {
             mPrimitiveFields.mTop += offset;
             mPrimitiveFields.mBottom += offset;
             return true;
         }
         return false;
     }

     int getWidth() const {
         return mPrimitiveFields.mWidth;
     }

     int getHeight() const {
         return mPrimitiveFields.mHeight;
     }

     const SkMatrix* getAnimationMatrix() const {
         return mAnimationMatrix;
     }

     bool hasTransformMatrix() const {
         return getTransformMatrix() && !getTransformMatrix()->isIdentity();
     }

     // May only call this if hasTransformMatrix() is true
     bool isTransformTranslateOnly() const {
         return getTransformMatrix()->getType() == SkMatrix::kTranslate_Mask;
     }

     const SkMatrix* getTransformMatrix() const {
         LOG_ALWAYS_FATAL_IF(mPrimitiveFields.mMatrixOrPivotDirty, "Cannot get a dirty matrix!");
         return mComputedFields.mTransformMatrix;
     }

     int getClippingFlags() const {
         return mPrimitiveFields.mClippingFlags;
     }

     bool getClipToBounds() const {
         return mPrimitiveFields.mClippingFlags & CLIP_TO_BOUNDS;
     }

     const Rect& getClipBounds() const {
         return mPrimitiveFields.mClipBounds;
     }

     void getClippingRectForFlags(uint32_t flags, Rect* outRect) const {
         if (flags & CLIP_TO_BOUNDS) {
             outRect->set(0, 0, getWidth(), getHeight());
             if (flags & CLIP_TO_CLIP_BOUNDS) {
                 outRect->doIntersect(mPrimitiveFields.mClipBounds);
             }
         } else {
             outRect->set(mPrimitiveFields.mClipBounds);
         }
     }

     bool getHasOverlappingRendering() const {
         return mPrimitiveFields.mHasOverlappingRendering;
     }

     const Outline& getOutline() const {
         return mPrimitiveFields.mOutline;
     }

     const RevealClip& getRevealClip() const {
         return mPrimitiveFields.mRevealClip;
     }

     bool getProjectBackwards() const {
         return mPrimitiveFields.mProjectBackwards;
     }

     void debugOutputProperties(const int level) const;

     void updateMatrix();

     Outline& mutableOutline() {
         return mPrimitiveFields.mOutline;
     }

     RevealClip& mutableRevealClip() {
         return mPrimitiveFields.mRevealClip;
     }

     const LayerProperties& layerProperties() const {
         return mLayerProperties;
     }

     LayerProperties& mutateLayerProperties() {
         return mLayerProperties;
     }

     // Returns true if damage calculations should be clipped to bounds
     // TODO: Figure out something better for getZ(), as children should still be
     // clipped to this RP's bounds. But as we will damage -INT_MAX to INT_MAX
     // for this RP's getZ() anyway, this can be optimized when we have a
     // Z damage estimate instead of INT_MAX
     bool getClipDamageToBounds() const {
         return getClipToBounds() && (getZ() <= 0 || getOutline().isEmpty());
     }

     bool hasShadow() const {
         return getZ() > 0.0f
                 && getOutline().getPath() != nullptr
                 && getOutline().getAlpha() != 0.0f;
     }

     bool fitsOnLayer() const {
         const DeviceInfo* deviceInfo = DeviceInfo::get();
         return mPrimitiveFields.mWidth <= deviceInfo->maxTextureSize()
                         && mPrimitiveFields.mHeight <= deviceInfo->maxTextureSize()
                         && mPrimitiveFields.mWidth > 0
                         && mPrimitiveFields.mHeight > 0;
     }

     bool promotedToLayer() const {
         return mLayerProperties.mType == LayerType::None
                 && fitsOnLayer()
                 && (mComputedFields.mNeedLayerForFunctors
                         || (!MathUtils::isZero(mPrimitiveFields.mAlpha)
                                 && mPrimitiveFields.mAlpha < 1
                                 && mPrimitiveFields.mHasOverlappingRendering));
     }

     LayerType effectiveLayerType() const {
         return CC_UNLIKELY(promotedToLayer()) ? LayerType::RenderLayer : mLayerProperties.mType;
     }

 private:
     // Rendering properties
     struct PrimitiveFields {
         int mLeft = 0, mTop = 0, mRight = 0, mBottom = 0;
         int mWidth = 0, mHeight = 0;
         int mClippingFlags = CLIP_TO_BOUNDS;
         float mAlpha = 1;
         float mTranslationX = 0, mTranslationY = 0, mTranslationZ = 0;
         float mElevation = 0;
         float mRotation = 0, mRotationX = 0, mRotationY = 0;
         float mScaleX = 1, mScaleY = 1;
         float mPivotX = 0, mPivotY = 0;
         bool mHasOverlappingRendering = false;
         bool mPivotExplicitlySet = false;
         bool mMatrixOrPivotDirty = false;
         bool mProjectBackwards = false;
         bool mProjectionReceiver = false;
         Rect mClipBounds;
         Outline mOutline;
         RevealClip mRevealClip;
     } mPrimitiveFields;

     SkMatrix* mStaticMatrix;
     SkMatrix* mAnimationMatrix;
     LayerProperties mLayerProperties;

     /**
      * These fields are all generated from other properties and are not set directly.
      */
     struct ComputedFields {
         ComputedFields();
         ~ComputedFields();

         /**
          * Stores the total transformation of the DisplayList based upon its scalar
          * translate/rotate/scale properties.
          *
          * In the common translation-only case, the matrix isn't necessarily allocated,
          * and the mTranslation properties are used directly.
          */
         SkMatrix* mTransformMatrix;

         Sk3DView mTransformCamera;

         // Force layer on for functors to enable render features they don't yet support (clipping)
         bool mNeedLayerForFunctors = false;
     } mComputedFields;
 };

 } /* namespace uirenderer */
 } /* namespace android */

 #endif /* RENDERNODEPROPERTIES_H */
	/*
	* Copyright (C) 2014 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.
	*/
	#ifndef RENDERNODEPROPERTIES_H
	#define RENDERNODEPROPERTIES_H

	#include "Caches.h"
	#include "DeviceInfo.h"
	#include "Rect.h"
	#include "RevealClip.h"
	#include "Outline.h"
	#include "utils/MathUtils.h"

	#include <SkCamera.h>
	#include <SkMatrix.h>
	#include <SkRegion.h>
	#include <SkXfermode.h>

	#include <algorithm>
	#include <stddef.h>
	#include <vector>
	#include <cutils/compiler.h>
	#include <androidfw/ResourceTypes.h>
	#include <utils/Log.h>

	class SkBitmap;
	class SkColorFilter;
	class SkPaint;

	namespace android {
	namespace uirenderer {

	class Matrix4;
	class RenderNode;
	class RenderProperties;

	// The __VA_ARGS__ will be executed if a & b are not equal
	#define RP_SET(a, b, ...) ((a) != (b) ? ((a) = (b), ##__VA_ARGS__, true) : false)
	#define RP_SET_AND_DIRTY(a, b) RP_SET(a, b, mPrimitiveFields.mMatrixOrPivotDirty = true)

	// Keep in sync with View.java:LAYER_TYPE_*
	enum class LayerType {
	None = 0,
	// Although we cannot build the software layer directly (must be done at
	// record time), this information is used when applying alpha.
	Software = 1,
	RenderLayer = 2,
	// TODO: LayerTypeSurfaceTexture? Maybe?
	};

	enum ClippingFlags {
	CLIP_TO_BOUNDS = 0x1 << 0,
	CLIP_TO_CLIP_BOUNDS = 0x1 << 1,
	};

	class ANDROID_API LayerProperties {
	public:
	bool setType(LayerType type) {
	if (RP_SET(mType, type)) {
	reset();
	return true;
	}
	return false;
	}

	bool setOpaque(bool opaque) {
	return RP_SET(mOpaque, opaque);
	}

	bool opaque() const {
	return mOpaque;
	}

	bool setAlpha(uint8_t alpha) {
	return RP_SET(mAlpha, alpha);
	}

	uint8_t alpha() const {
	return mAlpha;
	}

	bool setXferMode(SkXfermode::Mode mode) {
	return RP_SET(mMode, mode);
	}

	SkXfermode::Mode xferMode() const {
	return mMode;
	}

	bool setColorFilter(SkColorFilter* filter);

	SkColorFilter* colorFilter() const {
	return mColorFilter;
	}

	// Sets alpha, xfermode, and colorfilter from an SkPaint
	// paint may be NULL, in which case defaults will be set
	bool setFromPaint(const SkPaint* paint);

	bool needsBlending() const {
	return !opaque() \|\| alpha() < 255;
	}

	LayerProperties& operator=(const LayerProperties& other);

	private:
	LayerProperties();
	~LayerProperties();
	void reset();

	// Private since external users should go through properties().effectiveLayerType()
	LayerType type() const {
	return mType;
	}

	friend class RenderProperties;

	LayerType mType = LayerType::None;
	// Whether or not that Layer's content is opaque, doesn't include alpha
	bool mOpaque;
	uint8_t mAlpha;
	SkXfermode::Mode mMode;
	SkColorFilter* mColorFilter = nullptr;
	};

	/*
	* Data structure that holds the properties for a RenderNode
	*/
	class ANDROID_API RenderProperties {
	public:
	RenderProperties();
	virtual ~RenderProperties();

	static bool setFlag(int flag, bool newValue, int* outFlags) {
	if (newValue) {
	if (!(flag & *outFlags)) {
	*outFlags \|= flag;
	return true;
	}
	return false;
	} else {
	if (flag & *outFlags) {
	*outFlags &= ~flag;
	return true;
	}
	return false;
	}
	}

	/**
	* Set internal layer state based on whether this layer
	*
	* Additionally, returns true if child RenderNodes with functors will need to use a layer
	* to support clipping.
	*/
	bool prepareForFunctorPresence(bool willHaveFunctor, bool ancestorDictatesFunctorsNeedLayer) {
	// parent may have already dictated that a descendant layer is needed
	bool functorsNeedLayer = ancestorDictatesFunctorsNeedLayer

	// Round rect clipping forces layer for functors
	\|\| CC_UNLIKELY(getOutline().willRoundRectClip())
	\|\| CC_UNLIKELY(getRevealClip().willClip())

	// Complex matrices forces layer, due to stencil clipping
	\|\| CC_UNLIKELY(getTransformMatrix() && !getTransformMatrix()->isScaleTranslate())
	\|\| CC_UNLIKELY(getAnimationMatrix() && !getAnimationMatrix()->isScaleTranslate())
	\|\| CC_UNLIKELY(getStaticMatrix() && !getStaticMatrix()->isScaleTranslate());

	mComputedFields.mNeedLayerForFunctors = (willHaveFunctor && functorsNeedLayer);

	// If on a layer, will have consumed the need for isolating functors from stencil.
	// Thus, it's safe to reset the flag until some descendent sets it.
	return CC_LIKELY(effectiveLayerType() == LayerType::None) && functorsNeedLayer;
	}

	RenderProperties& operator=(const RenderProperties& other);

	bool setClipToBounds(bool clipToBounds) {
	return setFlag(CLIP_TO_BOUNDS, clipToBounds, &mPrimitiveFields.mClippingFlags);
	}

	bool setClipBounds(const Rect& clipBounds) {
	bool ret = setFlag(CLIP_TO_CLIP_BOUNDS, true, &mPrimitiveFields.mClippingFlags);
	return RP_SET(mPrimitiveFields.mClipBounds, clipBounds) \|\| ret;
	}

	bool setClipBoundsEmpty() {
	return setFlag(CLIP_TO_CLIP_BOUNDS, false, &mPrimitiveFields.mClippingFlags);
	}

	bool setProjectBackwards(bool shouldProject) {
	return RP_SET(mPrimitiveFields.mProjectBackwards, shouldProject);
	}

	bool setProjectionReceiver(bool shouldReceive) {
	return RP_SET(mPrimitiveFields.mProjectionReceiver, shouldReceive);
	}

	bool isProjectionReceiver() const {
	return mPrimitiveFields.mProjectionReceiver;
	}

	bool setStaticMatrix(const SkMatrix* matrix) {
	delete mStaticMatrix;
	if (matrix) {
	mStaticMatrix = new SkMatrix(*matrix);
	} else {
	mStaticMatrix = nullptr;
	}
	return true;
	}

	// Can return NULL
	const SkMatrix* getStaticMatrix() const {
	return mStaticMatrix;
	}

	bool setAnimationMatrix(const SkMatrix* matrix) {
	delete mAnimationMatrix;
	if (matrix) {
	mAnimationMatrix = new SkMatrix(*matrix);
	} else {
	mAnimationMatrix = nullptr;
	}
	return true;
	}

	bool setAlpha(float alpha) {
	alpha = MathUtils::clampAlpha(alpha);
	return RP_SET(mPrimitiveFields.mAlpha, alpha);
	}

	float getAlpha() const {
	return mPrimitiveFields.mAlpha;
	}

	bool setHasOverlappingRendering(bool hasOverlappingRendering) {
	return RP_SET(mPrimitiveFields.mHasOverlappingRendering, hasOverlappingRendering);
	}

	bool hasOverlappingRendering() const {
	return mPrimitiveFields.mHasOverlappingRendering;
	}

	bool setElevation(float elevation) {
	return RP_SET(mPrimitiveFields.mElevation, elevation);
	// Don't dirty matrix/pivot, since they don't respect Z
	}

	float getElevation() const {
	return mPrimitiveFields.mElevation;
	}

	bool setTranslationX(float translationX) {
	return RP_SET_AND_DIRTY(mPrimitiveFields.mTranslationX, translationX);
	}

	float getTranslationX() const {
	return mPrimitiveFields.mTranslationX;
	}

	bool setTranslationY(float translationY) {
	return RP_SET_AND_DIRTY(mPrimitiveFields.mTranslationY, translationY);
	}

	float getTranslationY() const {
	return mPrimitiveFields.mTranslationY;
	}

	bool setTranslationZ(float translationZ) {
	return RP_SET(mPrimitiveFields.mTranslationZ, translationZ);
	// mMatrixOrPivotDirty not set, since matrix doesn't respect Z
	}

	float getTranslationZ() const {
	return mPrimitiveFields.mTranslationZ;
	}

	// Animation helper
	bool setX(float value) {
	return setTranslationX(value - getLeft());
	}

	// Animation helper
	float getX() const {
	return getLeft() + getTranslationX();
	}

	// Animation helper
	bool setY(float value) {
	return setTranslationY(value - getTop());
	}

	// Animation helper
	float getY() const {
	return getTop() + getTranslationY();
	}

	// Animation helper
	bool setZ(float value) {
	return setTranslationZ(value - getElevation());
	}

	float getZ() const {
	return getElevation() + getTranslationZ();
	}

	bool setRotation(float rotation) {
	return RP_SET_AND_DIRTY(mPrimitiveFields.mRotation, rotation);
	}

	float getRotation() const {
	return mPrimitiveFields.mRotation;
	}

	bool setRotationX(float rotationX) {
	return RP_SET_AND_DIRTY(mPrimitiveFields.mRotationX, rotationX);
	}

	float getRotationX() const {
	return mPrimitiveFields.mRotationX;
	}

	bool setRotationY(float rotationY) {
	return RP_SET_AND_DIRTY(mPrimitiveFields.mRotationY, rotationY);
	}

	float getRotationY() const {
	return mPrimitiveFields.mRotationY;
	}

	bool setScaleX(float scaleX) {
	return RP_SET_AND_DIRTY(mPrimitiveFields.mScaleX, scaleX);
	}

	float getScaleX() const {
	return mPrimitiveFields.mScaleX;
	}

	bool setScaleY(float scaleY) {
	return RP_SET_AND_DIRTY(mPrimitiveFields.mScaleY, scaleY);
	}

	float getScaleY() const {
	return mPrimitiveFields.mScaleY;
	}

	bool setPivotX(float pivotX) {
	if (RP_SET(mPrimitiveFields.mPivotX, pivotX)
	\|\| !mPrimitiveFields.mPivotExplicitlySet) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	mPrimitiveFields.mPivotExplicitlySet = true;
	return true;
	}
	return false;
	}

	/* Note that getPivotX and getPivotY are adjusted by updateMatrix(),
	* so the value returned may be stale if the RenderProperties has been
	* modified since the last call to updateMatrix()
	*/
	float getPivotX() const {
	return mPrimitiveFields.mPivotX;
	}

	bool setPivotY(float pivotY) {
	if (RP_SET(mPrimitiveFields.mPivotY, pivotY)
	\|\| !mPrimitiveFields.mPivotExplicitlySet) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	mPrimitiveFields.mPivotExplicitlySet = true;
	return true;
	}
	return false;
	}

	float getPivotY() const {
	return mPrimitiveFields.mPivotY;
	}

	bool isPivotExplicitlySet() const {
	return mPrimitiveFields.mPivotExplicitlySet;
	}

	bool setCameraDistance(float distance) {
	if (distance != getCameraDistance()) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	mComputedFields.mTransformCamera.setCameraLocation(0, 0, distance);
	return true;
	}
	return false;
	}

	float getCameraDistance() const {
	// TODO: update getCameraLocationZ() to be const
	return const_cast<Sk3DView*>(&mComputedFields.mTransformCamera)->getCameraLocationZ();
	}

	bool setLeft(int left) {
	if (RP_SET(mPrimitiveFields.mLeft, left)) {
	mPrimitiveFields.mWidth = mPrimitiveFields.mRight - mPrimitiveFields.mLeft;
	if (!mPrimitiveFields.mPivotExplicitlySet) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	}
	return true;
	}
	return false;
	}

	int getLeft() const {
	return mPrimitiveFields.mLeft;
	}

	bool setTop(int top) {
	if (RP_SET(mPrimitiveFields.mTop, top)) {
	mPrimitiveFields.mHeight = mPrimitiveFields.mBottom - mPrimitiveFields.mTop;
	if (!mPrimitiveFields.mPivotExplicitlySet) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	}
	return true;
	}
	return false;
	}

	int getTop() const {
	return mPrimitiveFields.mTop;
	}

	bool setRight(int right) {
	if (RP_SET(mPrimitiveFields.mRight, right)) {
	mPrimitiveFields.mWidth = mPrimitiveFields.mRight - mPrimitiveFields.mLeft;
	if (!mPrimitiveFields.mPivotExplicitlySet) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	}
	return true;
	}
	return false;
	}

	int getRight() const {
	return mPrimitiveFields.mRight;
	}

	bool setBottom(int bottom) {
	if (RP_SET(mPrimitiveFields.mBottom, bottom)) {
	mPrimitiveFields.mHeight = mPrimitiveFields.mBottom - mPrimitiveFields.mTop;
	if (!mPrimitiveFields.mPivotExplicitlySet) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	}
	return true;
	}
	return false;
	}

	int getBottom() const {
	return mPrimitiveFields.mBottom;
	}

	bool setLeftTop(int left, int top) {
	bool leftResult = setLeft(left);
	bool topResult = setTop(top);
	return leftResult \|\| topResult;
	}

	bool setLeftTopRightBottom(int left, int top, int right, int bottom) {
	if (left != mPrimitiveFields.mLeft \|\| top != mPrimitiveFields.mTop
	\|\| right != mPrimitiveFields.mRight \|\| bottom != mPrimitiveFields.mBottom) {
	mPrimitiveFields.mLeft = left;
	mPrimitiveFields.mTop = top;
	mPrimitiveFields.mRight = right;
	mPrimitiveFields.mBottom = bottom;
	mPrimitiveFields.mWidth = mPrimitiveFields.mRight - mPrimitiveFields.mLeft;
	mPrimitiveFields.mHeight = mPrimitiveFields.mBottom - mPrimitiveFields.mTop;
	if (!mPrimitiveFields.mPivotExplicitlySet) {
	mPrimitiveFields.mMatrixOrPivotDirty = true;
	}
	return true;
	}
	return false;
	}

	bool offsetLeftRight(int offset) {
	if (offset != 0) {
	mPrimitiveFields.mLeft += offset;
	mPrimitiveFields.mRight += offset;
	return true;
	}
	return false;
	}

	bool offsetTopBottom(int offset) {
	if (offset != 0) {
	mPrimitiveFields.mTop += offset;
	mPrimitiveFields.mBottom += offset;
	return true;
	}
	return false;
	}

	int getWidth() const {
	return mPrimitiveFields.mWidth;
	}

	int getHeight() const {
	return mPrimitiveFields.mHeight;
	}

	const SkMatrix* getAnimationMatrix() const {
	return mAnimationMatrix;
	}

	bool hasTransformMatrix() const {
	return getTransformMatrix() && !getTransformMatrix()->isIdentity();
	}

	// May only call this if hasTransformMatrix() is true
	bool isTransformTranslateOnly() const {
	return getTransformMatrix()->getType() == SkMatrix::kTranslate_Mask;
	}

	const SkMatrix* getTransformMatrix() const {
	LOG_ALWAYS_FATAL_IF(mPrimitiveFields.mMatrixOrPivotDirty, "Cannot get a dirty matrix!");
	return mComputedFields.mTransformMatrix;
	}

	int getClippingFlags() const {
	return mPrimitiveFields.mClippingFlags;
	}

	bool getClipToBounds() const {
	return mPrimitiveFields.mClippingFlags & CLIP_TO_BOUNDS;
	}

	const Rect& getClipBounds() const {
	return mPrimitiveFields.mClipBounds;
	}

	void getClippingRectForFlags(uint32_t flags, Rect* outRect) const {
	if (flags & CLIP_TO_BOUNDS) {
	outRect->set(0, 0, getWidth(), getHeight());
	if (flags & CLIP_TO_CLIP_BOUNDS) {
	outRect->doIntersect(mPrimitiveFields.mClipBounds);
	}
	} else {
	outRect->set(mPrimitiveFields.mClipBounds);
	}
	}

	bool getHasOverlappingRendering() const {
	return mPrimitiveFields.mHasOverlappingRendering;
	}

	const Outline& getOutline() const {
	return mPrimitiveFields.mOutline;
	}

	const RevealClip& getRevealClip() const {
	return mPrimitiveFields.mRevealClip;
	}

	bool getProjectBackwards() const {
	return mPrimitiveFields.mProjectBackwards;
	}

	void debugOutputProperties(const int level) const;

	void updateMatrix();

	Outline& mutableOutline() {
	return mPrimitiveFields.mOutline;
	}

	RevealClip& mutableRevealClip() {
	return mPrimitiveFields.mRevealClip;
	}

	const LayerProperties& layerProperties() const {
	return mLayerProperties;
	}

	LayerProperties& mutateLayerProperties() {
	return mLayerProperties;
	}

	// Returns true if damage calculations should be clipped to bounds
	// TODO: Figure out something better for getZ(), as children should still be
	// clipped to this RP's bounds. But as we will damage -INT_MAX to INT_MAX
	// for this RP's getZ() anyway, this can be optimized when we have a
	// Z damage estimate instead of INT_MAX
	bool getClipDamageToBounds() const {
	return getClipToBounds() && (getZ() <= 0 \|\| getOutline().isEmpty());
	}

	bool hasShadow() const {
	return getZ() > 0.0f
	&& getOutline().getPath() != nullptr
	&& getOutline().getAlpha() != 0.0f;
	}

	bool fitsOnLayer() const {
	const DeviceInfo* deviceInfo = DeviceInfo::get();
	return mPrimitiveFields.mWidth <= deviceInfo->maxTextureSize()
	&& mPrimitiveFields.mHeight <= deviceInfo->maxTextureSize()
	&& mPrimitiveFields.mWidth > 0
	&& mPrimitiveFields.mHeight > 0;
	}

	bool promotedToLayer() const {
	return mLayerProperties.mType == LayerType::None
	&& fitsOnLayer()
	&& (mComputedFields.mNeedLayerForFunctors
	\|\| (!MathUtils::isZero(mPrimitiveFields.mAlpha)
	&& mPrimitiveFields.mAlpha < 1
	&& mPrimitiveFields.mHasOverlappingRendering));
	}

	LayerType effectiveLayerType() const {
	return CC_UNLIKELY(promotedToLayer()) ? LayerType::RenderLayer : mLayerProperties.mType;
	}

	private:
	// Rendering properties
	struct PrimitiveFields {
	int mLeft = 0, mTop = 0, mRight = 0, mBottom = 0;
	int mWidth = 0, mHeight = 0;
	int mClippingFlags = CLIP_TO_BOUNDS;
	float mAlpha = 1;
	float mTranslationX = 0, mTranslationY = 0, mTranslationZ = 0;
	float mElevation = 0;
	float mRotation = 0, mRotationX = 0, mRotationY = 0;
	float mScaleX = 1, mScaleY = 1;
	float mPivotX = 0, mPivotY = 0;
	bool mHasOverlappingRendering = false;
	bool mPivotExplicitlySet = false;
	bool mMatrixOrPivotDirty = false;
	bool mProjectBackwards = false;
	bool mProjectionReceiver = false;
	Rect mClipBounds;
	Outline mOutline;
	RevealClip mRevealClip;
	} mPrimitiveFields;

	SkMatrix* mStaticMatrix;
	SkMatrix* mAnimationMatrix;
	LayerProperties mLayerProperties;

	/**
	* These fields are all generated from other properties and are not set directly.
	*/
	struct ComputedFields {
	ComputedFields();
	~ComputedFields();

	/**
	* Stores the total transformation of the DisplayList based upon its scalar
	* translate/rotate/scale properties.
	*
	* In the common translation-only case, the matrix isn't necessarily allocated,
	* and the mTranslation properties are used directly.
	*/
	SkMatrix* mTransformMatrix;

	Sk3DView mTransformCamera;

	// Force layer on for functors to enable render features they don't yet support (clipping)
	bool mNeedLayerForFunctors = false;
	} mComputedFields;
	};

	} /* namespace uirenderer */
	} /* namespace android */

	#endif /* RENDERNODEPROPERTIES_H */