635 lines
22 KiB
C++
635 lines
22 KiB
C++
/*
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* Copyright (C) 2015 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "VectorDrawable.h"
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#include <math.h>
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#include <string.h>
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#include <utils/Log.h>
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#include "PathParser.h"
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#include "SkColorFilter.h"
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#include "SkImageInfo.h"
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#include "SkShader.h"
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#include "hwui/Paint.h"
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#ifdef __ANDROID__
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#include "renderthread/RenderThread.h"
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#endif
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#include <gui/TraceUtils.h>
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#include "utils/Macros.h"
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#include "utils/VectorDrawableUtils.h"
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namespace android {
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namespace uirenderer {
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namespace VectorDrawable {
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const int Tree::MAX_CACHED_BITMAP_SIZE = 2048;
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void Path::dump() {
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ALOGD("Path: %s has %zu points", mName.c_str(), mProperties.getData().points.size());
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}
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// Called from UI thread during the initial setup/theme change.
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Path::Path(const char* pathStr, size_t strLength) {
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PathParser::ParseResult result;
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Data data;
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PathParser::getPathDataFromAsciiString(&data, &result, pathStr, strLength);
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mStagingProperties.setData(data);
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}
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Path::Path(const Path& path) : Node(path) {
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mStagingProperties.syncProperties(path.mStagingProperties);
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}
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const SkPath& Path::getUpdatedPath(bool useStagingData, SkPath* tempStagingPath) {
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if (useStagingData) {
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tempStagingPath->reset();
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VectorDrawableUtils::verbsToPath(tempStagingPath, mStagingProperties.getData());
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return *tempStagingPath;
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} else {
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if (mSkPathDirty) {
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mSkPath.reset();
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VectorDrawableUtils::verbsToPath(&mSkPath, mProperties.getData());
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mSkPathDirty = false;
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}
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return mSkPath;
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}
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}
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void Path::syncProperties() {
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if (mStagingPropertiesDirty) {
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mProperties.syncProperties(mStagingProperties);
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} else {
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mStagingProperties.syncProperties(mProperties);
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}
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mStagingPropertiesDirty = false;
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}
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FullPath::FullPath(const FullPath& path) : Path(path) {
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mStagingProperties.syncProperties(path.mStagingProperties);
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}
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static void applyTrim(SkPath* outPath, const SkPath& inPath, float trimPathStart, float trimPathEnd,
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float trimPathOffset) {
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if (trimPathStart == 0.0f && trimPathEnd == 1.0f) {
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*outPath = inPath;
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return;
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}
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outPath->reset();
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if (trimPathStart == trimPathEnd) {
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// Trimmed path should be empty.
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return;
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}
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SkPathMeasure measure(inPath, false);
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float len = SkScalarToFloat(measure.getLength());
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float start = len * fmod((trimPathStart + trimPathOffset), 1.0f);
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float end = len * fmod((trimPathEnd + trimPathOffset), 1.0f);
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if (start > end) {
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measure.getSegment(start, len, outPath, true);
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if (end > 0) {
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measure.getSegment(0, end, outPath, true);
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}
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} else {
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measure.getSegment(start, end, outPath, true);
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}
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}
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const SkPath& FullPath::getUpdatedPath(bool useStagingData, SkPath* tempStagingPath) {
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if (!useStagingData && !mSkPathDirty && !mProperties.mTrimDirty) {
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return mTrimmedSkPath;
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}
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Path::getUpdatedPath(useStagingData, tempStagingPath);
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SkPath* outPath;
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if (useStagingData) {
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SkPath inPath = *tempStagingPath;
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applyTrim(tempStagingPath, inPath, mStagingProperties.getTrimPathStart(),
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mStagingProperties.getTrimPathEnd(), mStagingProperties.getTrimPathOffset());
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outPath = tempStagingPath;
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} else {
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if (mProperties.getTrimPathStart() != 0.0f || mProperties.getTrimPathEnd() != 1.0f) {
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mProperties.mTrimDirty = false;
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applyTrim(&mTrimmedSkPath, mSkPath, mProperties.getTrimPathStart(),
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mProperties.getTrimPathEnd(), mProperties.getTrimPathOffset());
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outPath = &mTrimmedSkPath;
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} else {
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outPath = &mSkPath;
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}
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}
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const FullPathProperties& properties = useStagingData ? mStagingProperties : mProperties;
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bool setFillPath = properties.getFillGradient() != nullptr ||
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properties.getFillColor() != SK_ColorTRANSPARENT;
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if (setFillPath) {
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outPath->setFillType(static_cast<SkPathFillType>(properties.getFillType()));
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}
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return *outPath;
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}
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void FullPath::dump() {
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Path::dump();
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ALOGD("stroke width, color, alpha: %f, %d, %f, fill color, alpha: %d, %f",
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mProperties.getStrokeWidth(), mProperties.getStrokeColor(), mProperties.getStrokeAlpha(),
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mProperties.getFillColor(), mProperties.getFillAlpha());
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}
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inline SkColor applyAlpha(SkColor color, float alpha) {
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int alphaBytes = SkColorGetA(color);
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return SkColorSetA(color, alphaBytes * alpha);
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}
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void FullPath::draw(SkCanvas* outCanvas, bool useStagingData) {
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const FullPathProperties& properties = useStagingData ? mStagingProperties : mProperties;
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SkPath tempStagingPath;
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const SkPath& renderPath = getUpdatedPath(useStagingData, &tempStagingPath);
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// Draw path's fill, if fill color or gradient is valid
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bool needsFill = false;
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SkPaint paint;
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if (properties.getFillGradient() != nullptr) {
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paint.setColor(applyAlpha(SK_ColorBLACK, properties.getFillAlpha()));
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paint.setShader(sk_sp<SkShader>(SkSafeRef(properties.getFillGradient())));
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needsFill = true;
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} else if (properties.getFillColor() != SK_ColorTRANSPARENT) {
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paint.setColor(applyAlpha(properties.getFillColor(), properties.getFillAlpha()));
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needsFill = true;
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}
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if (needsFill) {
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paint.setStyle(SkPaint::Style::kFill_Style);
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paint.setAntiAlias(mAntiAlias);
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outCanvas->drawPath(renderPath, paint);
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}
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// Draw path's stroke, if stroke color or Gradient is valid
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bool needsStroke = false;
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if (properties.getStrokeGradient() != nullptr) {
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paint.setColor(applyAlpha(SK_ColorBLACK, properties.getStrokeAlpha()));
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paint.setShader(sk_sp<SkShader>(SkSafeRef(properties.getStrokeGradient())));
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needsStroke = true;
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} else if (properties.getStrokeColor() != SK_ColorTRANSPARENT) {
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paint.setColor(applyAlpha(properties.getStrokeColor(), properties.getStrokeAlpha()));
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needsStroke = true;
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}
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if (needsStroke) {
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paint.setStyle(SkPaint::Style::kStroke_Style);
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paint.setAntiAlias(mAntiAlias);
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paint.setStrokeJoin(SkPaint::Join(properties.getStrokeLineJoin()));
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paint.setStrokeCap(SkPaint::Cap(properties.getStrokeLineCap()));
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paint.setStrokeMiter(properties.getStrokeMiterLimit());
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paint.setStrokeWidth(properties.getStrokeWidth());
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outCanvas->drawPath(renderPath, paint);
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}
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}
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void FullPath::syncProperties() {
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Path::syncProperties();
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if (mStagingPropertiesDirty) {
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mProperties.syncProperties(mStagingProperties);
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} else {
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// Update staging property with property values from animation.
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mStagingProperties.syncProperties(mProperties);
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}
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mStagingPropertiesDirty = false;
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}
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REQUIRE_COMPATIBLE_LAYOUT(FullPath::FullPathProperties::PrimitiveFields);
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static_assert(sizeof(float) == sizeof(int32_t), "float is not the same size as int32_t");
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static_assert(sizeof(SkColor) == sizeof(int32_t), "SkColor is not the same size as int32_t");
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bool FullPath::FullPathProperties::copyProperties(int8_t* outProperties, int length) const {
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int propertyDataSize = sizeof(FullPathProperties::PrimitiveFields);
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if (length != propertyDataSize) {
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LOG_ALWAYS_FATAL("Properties needs exactly %d bytes, a byte array of size %d is provided",
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propertyDataSize, length);
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return false;
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}
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PrimitiveFields* out = reinterpret_cast<PrimitiveFields*>(outProperties);
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*out = mPrimitiveFields;
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return true;
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}
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void FullPath::FullPathProperties::setColorPropertyValue(int propertyId, int32_t value) {
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Property currentProperty = static_cast<Property>(propertyId);
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if (currentProperty == Property::strokeColor) {
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setStrokeColor(value);
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} else if (currentProperty == Property::fillColor) {
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setFillColor(value);
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} else {
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LOG_ALWAYS_FATAL(
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"Error setting color property on FullPath: No valid property"
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" with id: %d",
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propertyId);
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}
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}
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void FullPath::FullPathProperties::setPropertyValue(int propertyId, float value) {
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Property property = static_cast<Property>(propertyId);
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switch (property) {
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case Property::strokeWidth:
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setStrokeWidth(value);
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break;
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case Property::strokeAlpha:
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setStrokeAlpha(value);
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break;
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case Property::fillAlpha:
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setFillAlpha(value);
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break;
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case Property::trimPathStart:
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setTrimPathStart(value);
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break;
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case Property::trimPathEnd:
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setTrimPathEnd(value);
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break;
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case Property::trimPathOffset:
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setTrimPathOffset(value);
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break;
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default:
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LOG_ALWAYS_FATAL("Invalid property id: %d for animation", propertyId);
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break;
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}
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}
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void ClipPath::draw(SkCanvas* outCanvas, bool useStagingData) {
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SkPath tempStagingPath;
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outCanvas->clipPath(getUpdatedPath(useStagingData, &tempStagingPath));
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}
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Group::Group(const Group& group) : Node(group) {
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mStagingProperties.syncProperties(group.mStagingProperties);
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}
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void Group::draw(SkCanvas* outCanvas, bool useStagingData) {
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// Save the current clip and matrix information, which is local to this group.
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SkAutoCanvasRestore saver(outCanvas, true);
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// apply the current group's matrix to the canvas
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SkMatrix stackedMatrix;
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const GroupProperties& prop = useStagingData ? mStagingProperties : mProperties;
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getLocalMatrix(&stackedMatrix, prop);
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outCanvas->concat(stackedMatrix);
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// Draw the group tree in the same order as the XML file.
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for (auto& child : mChildren) {
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child->draw(outCanvas, useStagingData);
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}
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// Restore the previous clip and matrix information.
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}
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void Group::dump() {
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ALOGD("Group %s has %zu children: ", mName.c_str(), mChildren.size());
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ALOGD("Group translateX, Y : %f, %f, scaleX, Y: %f, %f", mProperties.getTranslateX(),
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mProperties.getTranslateY(), mProperties.getScaleX(), mProperties.getScaleY());
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for (size_t i = 0; i < mChildren.size(); i++) {
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mChildren[i]->dump();
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}
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}
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void Group::syncProperties() {
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// Copy over the dirty staging properties
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if (mStagingPropertiesDirty) {
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mProperties.syncProperties(mStagingProperties);
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} else {
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mStagingProperties.syncProperties(mProperties);
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}
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mStagingPropertiesDirty = false;
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for (auto& child : mChildren) {
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child->syncProperties();
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}
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}
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void Group::getLocalMatrix(SkMatrix* outMatrix, const GroupProperties& properties) {
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outMatrix->reset();
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// TODO: use rotate(mRotate, mPivotX, mPivotY) and scale with pivot point, instead of
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// translating to pivot for rotating and scaling, then translating back.
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outMatrix->postTranslate(-properties.getPivotX(), -properties.getPivotY());
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outMatrix->postScale(properties.getScaleX(), properties.getScaleY());
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outMatrix->postRotate(properties.getRotation(), 0, 0);
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outMatrix->postTranslate(properties.getTranslateX() + properties.getPivotX(),
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properties.getTranslateY() + properties.getPivotY());
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}
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void Group::addChild(Node* child) {
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mChildren.emplace_back(child);
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if (mPropertyChangedListener != nullptr) {
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child->setPropertyChangedListener(mPropertyChangedListener);
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}
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}
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bool Group::GroupProperties::copyProperties(float* outProperties, int length) const {
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int propertyCount = static_cast<int>(Property::count);
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if (length != propertyCount) {
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LOG_ALWAYS_FATAL("Properties needs exactly %d bytes, a byte array of size %d is provided",
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propertyCount, length);
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return false;
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}
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PrimitiveFields* out = reinterpret_cast<PrimitiveFields*>(outProperties);
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*out = mPrimitiveFields;
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return true;
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}
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// TODO: Consider animating the properties as float pointers
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// Called on render thread
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float Group::GroupProperties::getPropertyValue(int propertyId) const {
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Property currentProperty = static_cast<Property>(propertyId);
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switch (currentProperty) {
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case Property::rotate:
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return getRotation();
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case Property::pivotX:
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return getPivotX();
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case Property::pivotY:
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return getPivotY();
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case Property::scaleX:
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return getScaleX();
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case Property::scaleY:
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return getScaleY();
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case Property::translateX:
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return getTranslateX();
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case Property::translateY:
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return getTranslateY();
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default:
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LOG_ALWAYS_FATAL("Invalid property index: %d", propertyId);
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return 0;
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}
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}
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// Called on render thread
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void Group::GroupProperties::setPropertyValue(int propertyId, float value) {
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Property currentProperty = static_cast<Property>(propertyId);
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switch (currentProperty) {
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case Property::rotate:
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setRotation(value);
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break;
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case Property::pivotX:
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setPivotX(value);
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break;
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case Property::pivotY:
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setPivotY(value);
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break;
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case Property::scaleX:
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setScaleX(value);
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break;
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case Property::scaleY:
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setScaleY(value);
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break;
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case Property::translateX:
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setTranslateX(value);
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break;
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case Property::translateY:
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setTranslateY(value);
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break;
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default:
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LOG_ALWAYS_FATAL("Invalid property index: %d", propertyId);
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}
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}
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bool Group::isValidProperty(int propertyId) {
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return GroupProperties::isValidProperty(propertyId);
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}
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bool Group::GroupProperties::isValidProperty(int propertyId) {
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return propertyId >= 0 && propertyId < static_cast<int>(Property::count);
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}
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int Tree::draw(Canvas* outCanvas, SkColorFilter* colorFilter, const SkRect& bounds,
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bool needsMirroring, bool canReuseCache) {
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// The imageView can scale the canvas in different ways, in order to
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// avoid blurry scaling, we have to draw into a bitmap with exact pixel
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// size first. This bitmap size is determined by the bounds and the
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// canvas scale.
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SkMatrix canvasMatrix;
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outCanvas->getMatrix(&canvasMatrix);
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float canvasScaleX = 1.0f;
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float canvasScaleY = 1.0f;
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if (canvasMatrix.getSkewX() == 0 && canvasMatrix.getSkewY() == 0) {
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// Only use the scale value when there's no skew or rotation in the canvas matrix.
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// TODO: Add a cts test for drawing VD on a canvas with negative scaling factors.
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canvasScaleX = fabs(canvasMatrix.getScaleX());
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canvasScaleY = fabs(canvasMatrix.getScaleY());
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}
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int scaledWidth = (int)(bounds.width() * canvasScaleX);
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int scaledHeight = (int)(bounds.height() * canvasScaleY);
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scaledWidth = std::min(Tree::MAX_CACHED_BITMAP_SIZE, scaledWidth);
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scaledHeight = std::min(Tree::MAX_CACHED_BITMAP_SIZE, scaledHeight);
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if (scaledWidth <= 0 || scaledHeight <= 0) {
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return 0;
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}
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mStagingProperties.setScaledSize(scaledWidth, scaledHeight);
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int saveCount = outCanvas->save(SaveFlags::MatrixClip);
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outCanvas->translate(bounds.fLeft, bounds.fTop);
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// Handle RTL mirroring.
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if (needsMirroring) {
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outCanvas->translate(bounds.width(), 0);
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outCanvas->scale(-1.0f, 1.0f);
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}
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mStagingProperties.setColorFilter(colorFilter);
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// At this point, canvas has been translated to the right position.
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// And we use this bound for the destination rect for the drawBitmap, so
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// we offset to (0, 0);
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SkRect tmpBounds = bounds;
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tmpBounds.offsetTo(0, 0);
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mStagingProperties.setBounds(tmpBounds);
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outCanvas->drawVectorDrawable(this);
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outCanvas->restoreToCount(saveCount);
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return scaledWidth * scaledHeight;
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}
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void Tree::drawStaging(Canvas* outCanvas) {
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bool redrawNeeded = allocateBitmapIfNeeded(mStagingCache, mStagingProperties.getScaledWidth(),
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mStagingProperties.getScaledHeight());
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// draw bitmap cache
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if (redrawNeeded || mStagingCache.dirty) {
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updateBitmapCache(*mStagingCache.bitmap, true);
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mStagingCache.dirty = false;
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}
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SkPaint skp;
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getPaintFor(&skp, mStagingProperties);
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Paint paint;
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paint.setFilterQuality(skp.getFilterQuality());
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paint.setColorFilter(skp.refColorFilter());
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paint.setAlpha(skp.getAlpha());
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outCanvas->drawBitmap(*mStagingCache.bitmap, 0, 0, mStagingCache.bitmap->width(),
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mStagingCache.bitmap->height(), mStagingProperties.getBounds().left(),
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mStagingProperties.getBounds().top(),
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mStagingProperties.getBounds().right(),
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mStagingProperties.getBounds().bottom(), &paint);
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}
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void Tree::getPaintFor(SkPaint* outPaint, const TreeProperties& prop) const {
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// HWUI always draws VD with bilinear filtering.
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outPaint->setFilterQuality(kLow_SkFilterQuality);
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if (prop.getColorFilter() != nullptr) {
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outPaint->setColorFilter(sk_ref_sp(prop.getColorFilter()));
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}
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outPaint->setAlpha(prop.getRootAlpha() * 255);
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}
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Bitmap& Tree::getBitmapUpdateIfDirty() {
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bool redrawNeeded = allocateBitmapIfNeeded(mCache, mProperties.getScaledWidth(),
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mProperties.getScaledHeight());
|
|
if (redrawNeeded || mCache.dirty) {
|
|
updateBitmapCache(*mCache.bitmap, false);
|
|
mCache.dirty = false;
|
|
}
|
|
return *mCache.bitmap;
|
|
}
|
|
|
|
void Tree::draw(SkCanvas* canvas, const SkRect& bounds, const SkPaint& inPaint) {
|
|
if (canvas->quickReject(bounds)) {
|
|
// The RenderNode is on screen, but the AVD is not.
|
|
return;
|
|
}
|
|
|
|
// Update the paint for any animatable properties
|
|
SkPaint paint = inPaint;
|
|
paint.setAlpha(mProperties.getRootAlpha() * 255);
|
|
|
|
sk_sp<SkImage> cachedBitmap = getBitmapUpdateIfDirty().makeImage();
|
|
|
|
// HWUI always draws VD with bilinear filtering.
|
|
auto sampling = SkSamplingOptions(SkFilterMode::kLinear);
|
|
int scaledWidth = SkScalarCeilToInt(mProperties.getScaledWidth());
|
|
int scaledHeight = SkScalarCeilToInt(mProperties.getScaledHeight());
|
|
canvas->drawImageRect(cachedBitmap, SkRect::MakeWH(scaledWidth, scaledHeight), bounds,
|
|
sampling, &paint, SkCanvas::kFast_SrcRectConstraint);
|
|
}
|
|
|
|
void Tree::updateBitmapCache(Bitmap& bitmap, bool useStagingData) {
|
|
SkBitmap outCache;
|
|
bitmap.getSkBitmap(&outCache);
|
|
int cacheWidth = outCache.width();
|
|
int cacheHeight = outCache.height();
|
|
ATRACE_FORMAT("VectorDrawable repaint %dx%d", cacheWidth, cacheHeight);
|
|
outCache.eraseColor(SK_ColorTRANSPARENT);
|
|
SkCanvas outCanvas(outCache);
|
|
float viewportWidth =
|
|
useStagingData ? mStagingProperties.getViewportWidth() : mProperties.getViewportWidth();
|
|
float viewportHeight = useStagingData ? mStagingProperties.getViewportHeight()
|
|
: mProperties.getViewportHeight();
|
|
float scaleX = cacheWidth / viewportWidth;
|
|
float scaleY = cacheHeight / viewportHeight;
|
|
outCanvas.scale(scaleX, scaleY);
|
|
mRootNode->draw(&outCanvas, useStagingData);
|
|
}
|
|
|
|
bool Tree::allocateBitmapIfNeeded(Cache& cache, int width, int height) {
|
|
if (!canReuseBitmap(cache.bitmap.get(), width, height)) {
|
|
SkImageInfo info = SkImageInfo::MakeN32(width, height, kPremul_SkAlphaType);
|
|
cache.bitmap = Bitmap::allocateHeapBitmap(info);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool Tree::canReuseBitmap(Bitmap* bitmap, int width, int height) {
|
|
return bitmap && width <= bitmap->width() && height <= bitmap->height();
|
|
}
|
|
|
|
void Tree::onPropertyChanged(TreeProperties* prop) {
|
|
if (prop == &mStagingProperties) {
|
|
mStagingCache.dirty = true;
|
|
} else {
|
|
mCache.dirty = true;
|
|
}
|
|
}
|
|
|
|
class MinMaxAverage {
|
|
public:
|
|
void add(float sample) {
|
|
if (mCount == 0) {
|
|
mMin = sample;
|
|
mMax = sample;
|
|
} else {
|
|
mMin = std::min(mMin, sample);
|
|
mMax = std::max(mMax, sample);
|
|
}
|
|
mTotal += sample;
|
|
mCount++;
|
|
}
|
|
|
|
float average() { return mTotal / mCount; }
|
|
|
|
float min() { return mMin; }
|
|
|
|
float max() { return mMax; }
|
|
|
|
float delta() { return mMax - mMin; }
|
|
|
|
private:
|
|
float mMin = 0.0f;
|
|
float mMax = 0.0f;
|
|
float mTotal = 0.0f;
|
|
int mCount = 0;
|
|
};
|
|
|
|
BitmapPalette Tree::computePalette() {
|
|
// TODO Cache this and share the code with Bitmap.cpp
|
|
|
|
ATRACE_CALL();
|
|
|
|
// TODO: This calculation of converting to HSV & tracking min/max is probably overkill
|
|
// Experiment with something simpler since we just want to figure out if it's "color-ful"
|
|
// and then the average perceptual lightness.
|
|
|
|
MinMaxAverage hue, saturation, value;
|
|
int sampledCount = 0;
|
|
|
|
// Sample a grid of 100 pixels to get an overall estimation of the colors in play
|
|
mRootNode->forEachFillColor([&](SkColor color) {
|
|
if (SkColorGetA(color) < 75) {
|
|
return;
|
|
}
|
|
sampledCount++;
|
|
float hsv[3];
|
|
SkColorToHSV(color, hsv);
|
|
hue.add(hsv[0]);
|
|
saturation.add(hsv[1]);
|
|
value.add(hsv[2]);
|
|
});
|
|
|
|
if (sampledCount == 0) {
|
|
ALOGV("VectorDrawable is mostly translucent");
|
|
return BitmapPalette::Unknown;
|
|
}
|
|
|
|
ALOGV("samples = %d, hue [min = %f, max = %f, avg = %f]; saturation [min = %f, max = %f, avg = "
|
|
"%f]; value [min = %f, max = %f, avg = %f]",
|
|
sampledCount, hue.min(), hue.max(), hue.average(), saturation.min(), saturation.max(),
|
|
saturation.average(), value.min(), value.max(), value.average());
|
|
|
|
if (hue.delta() <= 20 && saturation.delta() <= .1f) {
|
|
if (value.average() >= .5f) {
|
|
return BitmapPalette::Light;
|
|
} else {
|
|
return BitmapPalette::Dark;
|
|
}
|
|
}
|
|
return BitmapPalette::Unknown;
|
|
}
|
|
|
|
} // namespace VectorDrawable
|
|
|
|
} // namespace uirenderer
|
|
} // namespace android
|