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997ac15bcbea042b46df031ea795be85d44de491
frameworks_base/libs/hwui/VectorDrawable.h
Stan Iliev d7b8af13d6 Fix VectorDrawable dirty flag logic 
Pass VD staging dirty flag value to the render thread dirty flag.
This is fixing animation on growing VD bounds, which looked bad
because cache was not refreshed and scaling it up 100 times did
not look good.

Test: Ran GoogleCamera app and HWUI unit tests.
Bug: 65534766
Change-Id: Ie83cbb6839c772556340b4ec526ba3699fc84255
2017-09-19 10:01:50 -04:00

780 lines
28 KiB
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/*
* Copyright (C) 2015 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 ANDROID_HWUI_VPATH_H
#define ANDROID_HWUI_VPATH_H
#include "hwui/Canvas.h"
#include "hwui/Bitmap.h"
#include "renderthread/CacheManager.h"
#include "DisplayList.h"
#include <SkBitmap.h>
#include <SkColor.h>
#include <SkColorFilter.h>
#include <SkCanvas.h>
#include <SkMatrix.h>
#include <SkPaint.h>
#include <SkPath.h>
#include <SkPathMeasure.h>
#include <SkRect.h>
#include <SkShader.h>
#include <SkSurface.h>
#include <cutils/compiler.h>
#include <stddef.h>
#include <vector>
#include <string>
namespace android {
namespace uirenderer {
// Debug
#if DEBUG_VECTOR_DRAWABLE
#define VECTOR_DRAWABLE_LOGD(...) ALOGD(__VA_ARGS__)
#else
#define VECTOR_DRAWABLE_LOGD(...)
#endif
namespace VectorDrawable {
#define VD_SET_PRIMITIVE_FIELD_WITH_FLAG(field, value, flag) (VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(field, (value)) ? ((flag) = true, true) : false)
#define VD_SET_PROP(field, value) ((value) != (field) ? ((field) = (value), true) : false)
#define VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(field, value) ({ bool retVal = VD_SET_PROP((mPrimitiveFields.field), (value));\
onPropertyChanged(); retVal;})
#define UPDATE_SKPROP(field, value) ({bool retVal = ((field) != (value)); if ((field) != (value)) SkRefCnt_SafeAssign((field), (value)); retVal;})
/* A VectorDrawable is composed of a tree of nodes.
* Each node can be a group node, or a path.
* A group node can have groups or paths as children, but a path node has
* no children.
* One example can be:
* Root Group
* / | \
* Group Path Group
* / \ |
* Path Path Path
*
* VectorDrawables are drawn into bitmap caches first, then the caches are drawn to the given
* canvas with root alpha applied. Two caches are maintained for VD, one in UI thread, the other in
* Render Thread. A generation id is used to keep track of changes in the vector drawable tree.
* Each cache has their own generation id to track whether they are up to date with the latest
* change in the tree.
*
* Any property change to the vector drawable coming from UI thread (such as bulk setters to update
* all the properties, and viewport change, etc.) are only modifying the staging properties. The
* staging properties will then be marked dirty and will be pushed over to render thread properties
* at sync point. If staging properties are not dirty at sync point, we sync backwards by updating
* staging properties with render thread properties to reflect the latest animation value.
*
*/
class PropertyChangedListener {
public:
PropertyChangedListener(bool* dirty, bool* stagingDirty)
: mDirty(dirty), mStagingDirty(stagingDirty) {}
void onPropertyChanged() {
*mDirty = true;
}
void onStagingPropertyChanged() {
*mStagingDirty = true;
}
private:
bool* mDirty;
bool* mStagingDirty;
};
class ANDROID_API Node {
public:
class Properties {
public:
explicit Properties(Node* node) : mNode(node) {}
inline void onPropertyChanged() {
mNode->onPropertyChanged(this);
}
private:
Node* mNode;
};
Node(const Node& node) {
mName = node.mName;
}
Node() {}
virtual void draw(SkCanvas* outCanvas, bool useStagingData) = 0;
virtual void dump() = 0;
void setName(const char* name) {
mName = name;
}
virtual void setPropertyChangedListener(PropertyChangedListener* listener) {
mPropertyChangedListener = listener;
}
virtual void onPropertyChanged(Properties* properties) = 0;
virtual ~Node(){}
virtual void syncProperties() = 0;
protected:
std::string mName;
PropertyChangedListener* mPropertyChangedListener = nullptr;
};
class ANDROID_API Path : public Node {
public:
struct ANDROID_API Data {
std::vector<char> verbs;
std::vector<size_t> verbSizes;
std::vector<float> points;
bool operator==(const Data& data) const {
return verbs == data.verbs && verbSizes == data.verbSizes
&& points == data.points;
}
};
class PathProperties : public Properties {
public:
explicit PathProperties(Node* node) : Properties(node) {}
void syncProperties(const PathProperties& prop) {
mData = prop.mData;
onPropertyChanged();
}
void setData(const Data& data) {
// Updates the path data. Note that we don't generate a new Skia path right away
// because there are cases where the animation is changing the path data, but the view
// that hosts the VD has gone off screen, in which case we won't even draw. So we
// postpone the Skia path generation to the draw time.
if (data == mData) {
return;
}
mData = data;
onPropertyChanged();
}
const Data& getData() const {
return mData;
}
private:
Data mData;
};
Path(const Path& path);
Path(const char* path, size_t strLength);
Path() {}
void dump() override;
virtual void syncProperties() override;
virtual void onPropertyChanged(Properties* prop) override {
if (prop == &mStagingProperties) {
mStagingPropertiesDirty = true;
if (mPropertyChangedListener) {
mPropertyChangedListener->onStagingPropertyChanged();
}
} else if (prop == &mProperties){
mSkPathDirty = true;
if (mPropertyChangedListener) {
mPropertyChangedListener->onPropertyChanged();
}
}
}
PathProperties* mutateStagingProperties() { return &mStagingProperties; }
const PathProperties* stagingProperties() { return &mStagingProperties; }
// This should only be called from animations on RT
PathProperties* mutateProperties() { return &mProperties; }
protected:
virtual const SkPath& getUpdatedPath(bool useStagingData, SkPath* tempStagingPath);
// Internal data, render thread only.
bool mSkPathDirty = true;
SkPath mSkPath;
private:
PathProperties mProperties = PathProperties(this);
PathProperties mStagingProperties = PathProperties(this);
bool mStagingPropertiesDirty = true;
};
class ANDROID_API FullPath: public Path {
public:
class FullPathProperties : public Properties {
public:
struct PrimitiveFields {
float strokeWidth = 0;
SkColor strokeColor = SK_ColorTRANSPARENT;
float strokeAlpha = 1;
SkColor fillColor = SK_ColorTRANSPARENT;
float fillAlpha = 1;
float trimPathStart = 0;
float trimPathEnd = 1;
float trimPathOffset = 0;
int32_t strokeLineCap = SkPaint::Cap::kButt_Cap;
int32_t strokeLineJoin = SkPaint::Join::kMiter_Join;
float strokeMiterLimit = 4;
int fillType = 0; /* non-zero or kWinding_FillType in Skia */
};
explicit FullPathProperties(Node* mNode) : Properties(mNode), mTrimDirty(false) {}
~FullPathProperties() {
SkSafeUnref(fillGradient);
SkSafeUnref(strokeGradient);
}
void syncProperties(const FullPathProperties& prop) {
mPrimitiveFields = prop.mPrimitiveFields;
mTrimDirty = true;
UPDATE_SKPROP(fillGradient, prop.fillGradient);
UPDATE_SKPROP(strokeGradient, prop.strokeGradient);
onPropertyChanged();
}
void setFillGradient(SkShader* gradient) {
if(UPDATE_SKPROP(fillGradient, gradient)) {
onPropertyChanged();
}
}
void setStrokeGradient(SkShader* gradient) {
if(UPDATE_SKPROP(strokeGradient, gradient)) {
onPropertyChanged();
}
}
SkShader* getFillGradient() const {
return fillGradient;
}
SkShader* getStrokeGradient() const {
return strokeGradient;
}
float getStrokeWidth() const{
return mPrimitiveFields.strokeWidth;
}
void setStrokeWidth(float strokeWidth) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(strokeWidth, strokeWidth);
}
SkColor getStrokeColor() const{
return mPrimitiveFields.strokeColor;
}
void setStrokeColor(SkColor strokeColor) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(strokeColor, strokeColor);
}
float getStrokeAlpha() const{
return mPrimitiveFields.strokeAlpha;
}
void setStrokeAlpha(float strokeAlpha) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(strokeAlpha, strokeAlpha);
}
SkColor getFillColor() const {
return mPrimitiveFields.fillColor;
}
void setFillColor(SkColor fillColor) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(fillColor, fillColor);
}
float getFillAlpha() const{
return mPrimitiveFields.fillAlpha;
}
void setFillAlpha(float fillAlpha) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(fillAlpha, fillAlpha);
}
float getTrimPathStart() const{
return mPrimitiveFields.trimPathStart;
}
void setTrimPathStart(float trimPathStart) {
VD_SET_PRIMITIVE_FIELD_WITH_FLAG(trimPathStart, trimPathStart, mTrimDirty);
}
float getTrimPathEnd() const{
return mPrimitiveFields.trimPathEnd;
}
void setTrimPathEnd(float trimPathEnd) {
VD_SET_PRIMITIVE_FIELD_WITH_FLAG(trimPathEnd, trimPathEnd, mTrimDirty);
}
float getTrimPathOffset() const{
return mPrimitiveFields.trimPathOffset;
}
void setTrimPathOffset(float trimPathOffset) {
VD_SET_PRIMITIVE_FIELD_WITH_FLAG(trimPathOffset, trimPathOffset, mTrimDirty);
}
float getStrokeMiterLimit() const {
return mPrimitiveFields.strokeMiterLimit;
}
float getStrokeLineCap() const {
return mPrimitiveFields.strokeLineCap;
}
float getStrokeLineJoin() const {
return mPrimitiveFields.strokeLineJoin;
}
float getFillType() const {
return mPrimitiveFields.fillType;
}
bool copyProperties(int8_t* outProperties, int length) const;
void updateProperties(float strokeWidth, SkColor strokeColor, float strokeAlpha,
SkColor fillColor, float fillAlpha, float trimPathStart, float trimPathEnd,
float trimPathOffset, float strokeMiterLimit, int strokeLineCap, int strokeLineJoin,
int fillType) {
mPrimitiveFields.strokeWidth = strokeWidth;
mPrimitiveFields.strokeColor = strokeColor;
mPrimitiveFields.strokeAlpha = strokeAlpha;
mPrimitiveFields.fillColor = fillColor;
mPrimitiveFields.fillAlpha = fillAlpha;
mPrimitiveFields.trimPathStart = trimPathStart;
mPrimitiveFields.trimPathEnd = trimPathEnd;
mPrimitiveFields.trimPathOffset = trimPathOffset;
mPrimitiveFields.strokeMiterLimit = strokeMiterLimit;
mPrimitiveFields.strokeLineCap = strokeLineCap;
mPrimitiveFields.strokeLineJoin = strokeLineJoin;
mPrimitiveFields.fillType = fillType;
mTrimDirty = true;
onPropertyChanged();
}
// Set property values during animation
void setColorPropertyValue(int propertyId, int32_t value);
void setPropertyValue(int propertyId, float value);
bool mTrimDirty;
private:
enum class Property {
strokeWidth = 0,
strokeColor,
strokeAlpha,
fillColor,
fillAlpha,
trimPathStart,
trimPathEnd,
trimPathOffset,
strokeLineCap,
strokeLineJoin,
strokeMiterLimit,
fillType,
count,
};
PrimitiveFields mPrimitiveFields;
SkShader* fillGradient = nullptr;
SkShader* strokeGradient = nullptr;
};
// Called from UI thread
FullPath(const FullPath& path); // for cloning
FullPath(const char* path, size_t strLength) : Path(path, strLength) {}
FullPath() : Path() {}
void draw(SkCanvas* outCanvas, bool useStagingData) override;
void dump() override;
FullPathProperties* mutateStagingProperties() { return &mStagingProperties; }
const FullPathProperties* stagingProperties() { return &mStagingProperties; }
// This should only be called from animations on RT
FullPathProperties* mutateProperties() { return &mProperties; }
virtual void syncProperties() override;
virtual void onPropertyChanged(Properties* properties) override {
Path::onPropertyChanged(properties);
if (properties == &mStagingProperties) {
mStagingPropertiesDirty = true;
if (mPropertyChangedListener) {
mPropertyChangedListener->onStagingPropertyChanged();
}
} else if (properties == &mProperties) {
if (mPropertyChangedListener) {
mPropertyChangedListener->onPropertyChanged();
}
}
}
protected:
const SkPath& getUpdatedPath(bool useStagingData, SkPath* tempStagingPath) override;
private:
FullPathProperties mProperties = FullPathProperties(this);
FullPathProperties mStagingProperties = FullPathProperties(this);
bool mStagingPropertiesDirty = true;
// Intermediate data for drawing, render thread only
SkPath mTrimmedSkPath;
};
class ANDROID_API ClipPath: public Path {
public:
ClipPath(const ClipPath& path) : Path(path) {}
ClipPath(const char* path, size_t strLength) : Path(path, strLength) {}
ClipPath() : Path() {}
void draw(SkCanvas* outCanvas, bool useStagingData) override;
};
class ANDROID_API Group: public Node {
public:
class GroupProperties : public Properties {
public:
explicit GroupProperties(Node* mNode) : Properties(mNode) {}
struct PrimitiveFields {
float rotate = 0;
float pivotX = 0;
float pivotY = 0;
float scaleX = 1;
float scaleY = 1;
float translateX = 0;
float translateY = 0;
} mPrimitiveFields;
void syncProperties(const GroupProperties& prop) {
mPrimitiveFields = prop.mPrimitiveFields;
onPropertyChanged();
}
float getRotation() const {
return mPrimitiveFields.rotate;
}
void setRotation(float rotation) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(rotate, rotation);
}
float getPivotX() const {
return mPrimitiveFields.pivotX;
}
void setPivotX(float pivotX) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(pivotX, pivotX);
}
float getPivotY() const {
return mPrimitiveFields.pivotY;
}
void setPivotY(float pivotY) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(pivotY, pivotY);
}
float getScaleX() const {
return mPrimitiveFields.scaleX;
}
void setScaleX(float scaleX) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(scaleX, scaleX);
}
float getScaleY() const {
return mPrimitiveFields.scaleY;
}
void setScaleY(float scaleY) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(scaleY, scaleY);
}
float getTranslateX() const {
return mPrimitiveFields.translateX;
}
void setTranslateX(float translateX) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(translateX, translateX);
}
float getTranslateY() const {
return mPrimitiveFields.translateY;
}
void setTranslateY(float translateY) {
VD_SET_PRIMITIVE_FIELD_AND_NOTIFY(translateY, translateY);
}
void updateProperties(float rotate, float pivotX, float pivotY,
float scaleX, float scaleY, float translateX, float translateY) {
mPrimitiveFields.rotate = rotate;
mPrimitiveFields.pivotX = pivotX;
mPrimitiveFields.pivotY = pivotY;
mPrimitiveFields.scaleX = scaleX;
mPrimitiveFields.scaleY = scaleY;
mPrimitiveFields.translateX = translateX;
mPrimitiveFields.translateY = translateY;
onPropertyChanged();
}
void setPropertyValue(int propertyId, float value);
float getPropertyValue(int propertyId) const;
bool copyProperties(float* outProperties, int length) const;
static bool isValidProperty(int propertyId);
private:
enum class Property {
rotate = 0,
pivotX,
pivotY,
scaleX,
scaleY,
translateX,
translateY,
// Count of the properties, must be at the end.
count,
};
};
Group(const Group& group);
Group() {}
void addChild(Node* child);
virtual void setPropertyChangedListener(PropertyChangedListener* listener) override {
Node::setPropertyChangedListener(listener);
for (auto& child : mChildren) {
child->setPropertyChangedListener(listener);
}
}
virtual void syncProperties() override;
GroupProperties* mutateStagingProperties() { return &mStagingProperties; }
const GroupProperties* stagingProperties() { return &mStagingProperties; }
// This should only be called from animations on RT
GroupProperties* mutateProperties() { return &mProperties; }
// Methods below could be called from either UI thread or Render Thread.
virtual void draw(SkCanvas* outCanvas, bool useStagingData) override;
void getLocalMatrix(SkMatrix* outMatrix, const GroupProperties& properties);
void dump() override;
static bool isValidProperty(int propertyId);
virtual void onPropertyChanged(Properties* properties) override {
if (properties == &mStagingProperties) {
mStagingPropertiesDirty = true;
if (mPropertyChangedListener) {
mPropertyChangedListener->onStagingPropertyChanged();
}
} else {
if (mPropertyChangedListener) {
mPropertyChangedListener->onPropertyChanged();
}
}
}
private:
GroupProperties mProperties = GroupProperties(this);
GroupProperties mStagingProperties = GroupProperties(this);
bool mStagingPropertiesDirty = true;
std::vector< std::unique_ptr<Node> > mChildren;
};
class ANDROID_API Tree : public VirtualLightRefBase {
public:
explicit Tree(Group* rootNode) : mRootNode(rootNode) {
mRootNode->setPropertyChangedListener(&mPropertyChangedListener);
}
// Copy properties from the tree and use the give node as the root node
Tree(const Tree* copy, Group* rootNode) : Tree(rootNode) {
mStagingProperties.syncAnimatableProperties(*copy->stagingProperties());
mStagingProperties.syncNonAnimatableProperties(*copy->stagingProperties());
}
// Draws the VD onto a bitmap cache, then the bitmap cache will be rendered onto the input
// canvas. Returns the number of pixels needed for the bitmap cache.
int draw(Canvas* outCanvas, SkColorFilter* colorFilter,
const SkRect& bounds, bool needsMirroring, bool canReuseCache);
void drawStaging(Canvas* canvas);
Bitmap& getBitmapUpdateIfDirty();
void setAllowCaching(bool allowCaching) {
mAllowCaching = allowCaching;
}
SkPaint* getPaint();
void syncProperties() {
if (mStagingProperties.mNonAnimatablePropertiesDirty) {
mCache.dirty |= (mProperties.mNonAnimatableProperties.viewportWidth
!= mStagingProperties.mNonAnimatableProperties.viewportWidth)
|| (mProperties.mNonAnimatableProperties.viewportHeight
!= mStagingProperties.mNonAnimatableProperties.viewportHeight)
|| (mProperties.mNonAnimatableProperties.scaledWidth
!= mStagingProperties.mNonAnimatableProperties.scaledWidth)
|| (mProperties.mNonAnimatableProperties.scaledHeight
!= mStagingProperties.mNonAnimatableProperties.scaledHeight)
|| (mProperties.mNonAnimatableProperties.bounds
!= mStagingProperties.mNonAnimatableProperties.bounds);
mProperties.syncNonAnimatableProperties(mStagingProperties);
mStagingProperties.mNonAnimatablePropertiesDirty = false;
}
if (mStagingProperties.mAnimatablePropertiesDirty) {
mProperties.syncAnimatableProperties(mStagingProperties);
} else {
mStagingProperties.syncAnimatableProperties(mProperties);
}
mStagingProperties.mAnimatablePropertiesDirty = false;
mRootNode->syncProperties();
}
class TreeProperties {
public:
explicit TreeProperties(Tree* tree) : mTree(tree) {}
// Properties that can only be modified by UI thread, therefore sync should
// only go from UI to RT
struct NonAnimatableProperties {
float viewportWidth = 0;
float viewportHeight = 0;
SkRect bounds;
int scaledWidth = 0;
int scaledHeight = 0;
SkColorFilter* colorFilter = nullptr;
~NonAnimatableProperties() {
SkSafeUnref(colorFilter);
}
} mNonAnimatableProperties;
bool mNonAnimatablePropertiesDirty = true;
float mRootAlpha = 1.0f;
bool mAnimatablePropertiesDirty = true;
void syncNonAnimatableProperties(const TreeProperties& prop) {
// Copy over the data that can only be changed in UI thread
if (mNonAnimatableProperties.colorFilter != prop.mNonAnimatableProperties.colorFilter) {
SkRefCnt_SafeAssign(mNonAnimatableProperties.colorFilter,
prop.mNonAnimatableProperties.colorFilter);
}
mNonAnimatableProperties = prop.mNonAnimatableProperties;
}
void setViewportSize(float width, float height) {
if (mNonAnimatableProperties.viewportWidth != width
|| mNonAnimatableProperties.viewportHeight != height) {
mNonAnimatablePropertiesDirty = true;
mNonAnimatableProperties.viewportWidth = width;
mNonAnimatableProperties.viewportHeight = height;
mTree->onPropertyChanged(this);
}
}
void setBounds(const SkRect& bounds) {
if (mNonAnimatableProperties.bounds != bounds) {
mNonAnimatableProperties.bounds = bounds;
mNonAnimatablePropertiesDirty = true;
mTree->onPropertyChanged(this);
}
}
void setScaledSize(int width, int height) {
// If the requested size is bigger than what the bitmap was, then
// we increase the bitmap size to match. The width and height
// are bound by MAX_CACHED_BITMAP_SIZE.
if (mNonAnimatableProperties.scaledWidth < width
|| mNonAnimatableProperties.scaledHeight < height) {
mNonAnimatableProperties.scaledWidth = std::max(width,
mNonAnimatableProperties.scaledWidth);
mNonAnimatableProperties.scaledHeight = std::max(height,
mNonAnimatableProperties.scaledHeight);
mNonAnimatablePropertiesDirty = true;
mTree->onPropertyChanged(this);
}
}
void setColorFilter(SkColorFilter* filter) {
if (UPDATE_SKPROP(mNonAnimatableProperties.colorFilter, filter)) {
mNonAnimatablePropertiesDirty = true;
mTree->onPropertyChanged(this);
}
}
SkColorFilter* getColorFilter() const{
return mNonAnimatableProperties.colorFilter;
}
float getViewportWidth() const {
return mNonAnimatableProperties.viewportWidth;
}
float getViewportHeight() const {
return mNonAnimatableProperties.viewportHeight;
}
float getScaledWidth() const {
return mNonAnimatableProperties.scaledWidth;
}
float getScaledHeight() const {
return mNonAnimatableProperties.scaledHeight;
}
void syncAnimatableProperties(const TreeProperties& prop) {
mRootAlpha = prop.mRootAlpha;
}
bool setRootAlpha(float rootAlpha) {
if (rootAlpha != mRootAlpha) {
mAnimatablePropertiesDirty = true;
mRootAlpha = rootAlpha;
mTree->onPropertyChanged(this);
return true;
}
return false;
}
float getRootAlpha() const { return mRootAlpha;}
const SkRect& getBounds() const {
return mNonAnimatableProperties.bounds;
}
Tree* mTree;
};
void onPropertyChanged(TreeProperties* prop);
TreeProperties* mutateStagingProperties() { return &mStagingProperties; }
const TreeProperties* stagingProperties() const { return &mStagingProperties; }
// This should only be called from animations on RT
TreeProperties* mutateProperties() { return &mProperties; }
// called from RT only
const TreeProperties& properties() const { return mProperties; }
// This should always be called from RT.
void markDirty() { mCache.dirty = true; }
bool isDirty() const { return mCache.dirty; }
bool getPropertyChangeWillBeConsumed() const { return mWillBeConsumed; }
void setPropertyChangeWillBeConsumed(bool willBeConsumed) { mWillBeConsumed = willBeConsumed; }
/**
* Draws VD cache into a canvas. This should always be called from RT and it works with Skia
* pipelines only.
*/
void draw(SkCanvas* canvas);
/**
* Draws VD into a GPU backed surface.
* This should always be called from RT and it works with Skia pipeline only.
*/
void updateCache(sp<skiapipeline::VectorDrawableAtlas>& atlas, GrContext* context);
private:
class Cache {
public:
sk_sp<Bitmap> bitmap; //used by HWUI pipeline and software
//TODO: use surface instead of bitmap when drawing in software canvas
bool dirty = true;
// the rest of the code in Cache is used by Skia pipelines only
~Cache() { clear(); }
/**
* Stores a weak pointer to the atlas and a key.
*/
void setAtlas(sp<skiapipeline::VectorDrawableAtlas> atlas,
skiapipeline::AtlasKey newAtlasKey);
/**
* Gets a surface and bounds from the atlas.
*
* @return nullptr if the altas has been deleted.
*/
sk_sp<SkSurface> getSurface(SkRect* bounds);
/**
* Releases atlas key from the atlas, which makes it available for reuse.
*/
void clear();
private:
wp<skiapipeline::VectorDrawableAtlas> mAtlas;
skiapipeline::AtlasKey mAtlasKey = INVALID_ATLAS_KEY;
};
SkPaint* updatePaint(SkPaint* outPaint, TreeProperties* prop);
bool allocateBitmapIfNeeded(Cache& cache, int width, int height);
bool canReuseBitmap(Bitmap*, int width, int height);
void updateBitmapCache(Bitmap& outCache, bool useStagingData);
// Cap the bitmap size, such that it won't hurt the performance too much
// and it won't crash due to a very large scale.
// The drawable will look blurry above this size.
const static int MAX_CACHED_BITMAP_SIZE;
bool mAllowCaching = true;
std::unique_ptr<Group> mRootNode;
TreeProperties mProperties = TreeProperties(this);
TreeProperties mStagingProperties = TreeProperties(this);
SkPaint mPaint;
Cache mStagingCache;
Cache mCache;
PropertyChangedListener mPropertyChangedListener
= PropertyChangedListener(&mCache.dirty, &mStagingCache.dirty);
mutable bool mWillBeConsumed = false;
};
} // namespace VectorDrawable
typedef VectorDrawable::Path::Data PathData;
} // namespace uirenderer
} // namespace android
#endif // ANDROID_HWUI_VPATH_H
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