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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 SkiaCanvasProxy_DEFINED
#define SkiaCanvasProxy_DEFINED
#include <cutils/compiler.h>
#include <SkCanvas.h>
#include "hwui/Canvas.h"
namespace android {
namespace uirenderer {
/**
* This class serves as a proxy between Skia's SkCanvas and Android Framework's
* Canvas. The class does not maintain any draw-related state and will pass
* through most requests directly to the Canvas provided in the constructor.
*
* Upon construction it is expected that the provided Canvas has already been
* prepared for recording and will continue to be in the recording state while
* this proxy class is being used.
*
* If filterHwuiCalls is true, the proxy silently ignores away draw calls that
* aren't supported by HWUI.
*/
class ANDROID_API SkiaCanvasProxy : public SkCanvas {
public:
explicit SkiaCanvasProxy(Canvas* canvas, bool filterHwuiCalls = false);
virtual ~SkiaCanvasProxy() {}
protected:
virtual sk_sp<SkSurface> onNewSurface(const SkImageInfo&, const SkSurfaceProps&) override;
virtual void willSave() override;
virtual SaveLayerStrategy getSaveLayerStrategy(const SaveLayerRec&) override;
virtual void willRestore() override;
virtual void didConcat(const SkMatrix&) override;
virtual void didSetMatrix(const SkMatrix&) override;
virtual void onDrawPaint(const SkPaint& paint) override;
virtual void onDrawPoints(PointMode, size_t count, const SkPoint pts[],
const SkPaint&) override;
virtual void onDrawOval(const SkRect&, const SkPaint&) override;
virtual void onDrawRect(const SkRect&, const SkPaint&) override;
virtual void onDrawRRect(const SkRRect&, const SkPaint&) override;
virtual void onDrawPath(const SkPath& path, const SkPaint&) override;
virtual void onDrawArc(const SkRect&, SkScalar startAngle, SkScalar sweepAngle, bool useCenter,
const SkPaint&) override;
virtual void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top,
const SkPaint*) override;
virtual void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst,
const SkPaint* paint, SrcRectConstraint) override;
virtual void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
const SkRect& dst, const SkPaint*) override;
virtual void onDrawImage(const SkImage*, SkScalar dx, SkScalar dy, const SkPaint*);
virtual void onDrawImageRect(const SkImage*, const SkRect*, const SkRect&, const SkPaint*,
SrcRectConstraint);
virtual void onDrawImageNine(const SkImage*, const SkIRect& center, const SkRect& dst,
const SkPaint*);
virtual void onDrawImageLattice(const SkImage*, const Lattice& lattice, const SkRect& dst,
const SkPaint*);
virtual void onDrawVerticesObject(const SkVertices*, SkBlendMode, const SkPaint&) override;
virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
virtual void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
const SkPaint&) override;
virtual void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
const SkPaint&) override;
virtual void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
SkScalar constY, const SkPaint&) override;
virtual void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
const SkMatrix* matrix, const SkPaint&) override;
virtual void onDrawTextRSXform(const void* text, size_t byteLength, const SkRSXform[],
const SkRect* cullRect, const SkPaint& paint);
virtual void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) override;
virtual void onDrawPatch(const SkPoint cubics[12], const SkColor colors[4],
const SkPoint texCoords[4], SkBlendMode,
const SkPaint& paint) override;
virtual void onClipRect(const SkRect&, SkClipOp, ClipEdgeStyle) override;
virtual void onClipRRect(const SkRRect&, SkClipOp, ClipEdgeStyle) override;
virtual void onClipPath(const SkPath&, SkClipOp, ClipEdgeStyle) override;
private:
Canvas* mCanvas;
bool mFilterHwuiCalls;
typedef SkCanvas INHERITED;
};
}; // namespace uirenderer
}; // namespace android
#endif // SkiaCanvasProxy_DEFINED
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