/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkPaintFilterCanvas.h"
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#include "SkPaint.h"
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#include "SkPixmap.h"
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#include "SkSurface.h"
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#include "SkTLazy.h"
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class SkPaintFilterCanvas::AutoPaintFilter {
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public:
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AutoPaintFilter(const SkPaintFilterCanvas* canvas, Type type, const SkPaint* paint)
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: fPaint(paint) {
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fShouldDraw = canvas->onFilter(&fPaint, type);
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}
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AutoPaintFilter(const SkPaintFilterCanvas* canvas, Type type, const SkPaint& paint)
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: AutoPaintFilter(canvas, type, &paint) { }
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const SkPaint* paint() const { return fPaint; }
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bool shouldDraw() const { return fShouldDraw; }
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private:
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SkTCopyOnFirstWrite<SkPaint> fPaint;
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bool fShouldDraw;
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};
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SkPaintFilterCanvas::SkPaintFilterCanvas(SkCanvas *canvas)
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: SkCanvasVirtualEnforcer<SkNWayCanvas>(canvas->imageInfo().width(),
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canvas->imageInfo().height()) {
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// Transfer matrix & clip state before adding the target canvas.
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this->clipRect(SkRect::Make(canvas->getDeviceClipBounds()));
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this->setMatrix(canvas->getTotalMatrix());
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this->addCanvas(canvas);
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}
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void SkPaintFilterCanvas::onDrawPaint(const SkPaint& paint) {
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AutoPaintFilter apf(this, kPaint_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawPaint(*apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawBehind(const SkPaint& paint) {
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AutoPaintFilter apf(this, kPaint_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawBehind(*apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawPoints(PointMode mode, size_t count, const SkPoint pts[],
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const SkPaint& paint) {
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AutoPaintFilter apf(this, kPoint_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawPoints(mode, count, pts, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawRect(const SkRect& rect, const SkPaint& paint) {
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AutoPaintFilter apf(this, kRect_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawRect(rect, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawEdgeAARect(const SkRect& rect, SkCanvas::QuadAAFlags aa,
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SkColor color, SkBlendMode mode) {
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SkPaint paint;
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paint.setColor(color);
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paint.setBlendMode(mode);
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AutoPaintFilter apf(this, kRect_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawEdgeAARect(rect, aa, paint.getColor(), paint.getBlendMode());
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}
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}
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void SkPaintFilterCanvas::onDrawRRect(const SkRRect& rrect, const SkPaint& paint) {
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AutoPaintFilter apf(this, kRRect_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawRRect(rrect, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawDRRect(const SkRRect& outer, const SkRRect& inner,
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const SkPaint& paint) {
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AutoPaintFilter apf(this, kDRRect_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawDRRect(outer, inner, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawRegion(const SkRegion& region, const SkPaint& paint) {
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AutoPaintFilter apf(this, kPath_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawRegion(region, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawOval(const SkRect& rect, const SkPaint& paint) {
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AutoPaintFilter apf(this, kOval_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawOval(rect, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawArc(const SkRect& rect, SkScalar startAngle, SkScalar sweepAngle,
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bool useCenter, const SkPaint& paint) {
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AutoPaintFilter apf(this, kArc_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawArc(rect, startAngle, sweepAngle, useCenter, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawPath(const SkPath& path, const SkPaint& paint) {
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AutoPaintFilter apf(this, kPath_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawPath(path, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawBitmap(const SkBitmap& bm, SkScalar left, SkScalar top,
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const SkPaint* paint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawBitmap(bm, left, top, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawBitmapRect(const SkBitmap& bm, const SkRect* src, const SkRect& dst,
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const SkPaint* paint, SrcRectConstraint constraint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawBitmapRect(bm, src, dst, apf.paint(), constraint);
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}
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}
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void SkPaintFilterCanvas::onDrawBitmapNine(const SkBitmap& bm, const SkIRect& center,
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const SkRect& dst, const SkPaint* paint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawBitmapNine(bm, center, dst, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawBitmapLattice(const SkBitmap& bitmap, const Lattice& lattice,
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const SkRect& dst, const SkPaint* paint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawBitmapLattice(bitmap, lattice, dst, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawImage(const SkImage* image, SkScalar left, SkScalar top,
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const SkPaint* paint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawImage(image, left, top, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawImageRect(const SkImage* image, const SkRect* src,
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const SkRect& dst, const SkPaint* paint,
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SrcRectConstraint constraint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawImageRect(image, src, dst, apf.paint(), constraint);
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}
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}
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void SkPaintFilterCanvas::onDrawImageNine(const SkImage* image, const SkIRect& center,
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const SkRect& dst, const SkPaint* paint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawImageNine(image, center, dst, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawImageLattice(const SkImage* image, const Lattice& lattice,
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const SkRect& dst, const SkPaint* paint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawImageLattice(image, lattice, dst, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawImageSet(const SkCanvas::ImageSetEntry set[], int count,
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SkFilterQuality filterQuality, SkBlendMode mode) {
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SkPaint paint;
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paint.setBlendMode(mode);
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AutoPaintFilter apf(this, kBitmap_Type, &paint);
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mode = paint.getBlendMode();
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawImageSet(set, count, filterQuality, mode);
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}
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}
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void SkPaintFilterCanvas::onDrawVerticesObject(const SkVertices* vertices,
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const SkVertices::Bone bones[], int boneCount,
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SkBlendMode bmode, const SkPaint& paint) {
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AutoPaintFilter apf(this, kVertices_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawVerticesObject(vertices, bones, boneCount, bmode, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawPatch(const SkPoint cubics[], const SkColor colors[],
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const SkPoint texCoords[], SkBlendMode bmode,
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const SkPaint& paint) {
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AutoPaintFilter apf(this, kPatch_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawPatch(cubics, colors, texCoords, bmode, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawPicture(const SkPicture* picture, const SkMatrix* m,
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const SkPaint* paint) {
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AutoPaintFilter apf(this, kPicture_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawPicture(picture, m, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawDrawable(SkDrawable* drawable, const SkMatrix* matrix) {
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// There is no paint to filter in this case, but we can still filter on type.
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// Subclasses need to unroll the drawable explicity (by overriding this method) in
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// order to actually filter nested content.
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AutoPaintFilter apf(this, kDrawable_Type, nullptr);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawDrawable(drawable, matrix);
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}
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}
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void SkPaintFilterCanvas::onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
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const SkPaint& paint) {
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AutoPaintFilter apf(this, kTextBlob_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawTextBlob(blob, x, y, *apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawAtlas(const SkImage* image, const SkRSXform xform[],
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const SkRect tex[], const SkColor colors[], int count,
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SkBlendMode bmode, const SkRect* cull, const SkPaint* paint) {
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AutoPaintFilter apf(this, kBitmap_Type, paint);
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if (apf.shouldDraw()) {
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this->SkNWayCanvas::onDrawAtlas(image, xform, tex, colors, count, bmode, cull, apf.paint());
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}
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}
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void SkPaintFilterCanvas::onDrawAnnotation(const SkRect& rect, const char key[], SkData* value) {
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this->SkNWayCanvas::onDrawAnnotation(rect, key, value);
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}
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void SkPaintFilterCanvas::onDrawShadowRec(const SkPath& path, const SkDrawShadowRec& rec) {
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this->SkNWayCanvas::onDrawShadowRec(path, rec);
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}
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sk_sp<SkSurface> SkPaintFilterCanvas::onNewSurface(const SkImageInfo& info,
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const SkSurfaceProps& props) {
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return proxy()->makeSurface(info, &props);
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}
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bool SkPaintFilterCanvas::onPeekPixels(SkPixmap* pixmap) {
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return proxy()->peekPixels(pixmap);
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}
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bool SkPaintFilterCanvas::onAccessTopLayerPixels(SkPixmap* pixmap) {
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SkImageInfo info;
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size_t rowBytes;
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void* addr = proxy()->accessTopLayerPixels(&info, &rowBytes);
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if (!addr) {
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return false;
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}
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pixmap->reset(info, addr, rowBytes);
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return true;
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}
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SkImageInfo SkPaintFilterCanvas::onImageInfo() const {
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return proxy()->imageInfo();
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}
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bool SkPaintFilterCanvas::onGetProps(SkSurfaceProps* props) const {
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return proxy()->getProps(props);
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}
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