2766c00fc0
It's been outclassed by Valgrind and leak sanitizer, and it seems to be causing problems for external folks building Skia. I'm not sure why our own builds seem unaffected. Latest thread: https://groups.google.com/forum/#!topic/skia-discuss/oj9FsQwwSF0 BUG=skia: Review URL: https://codereview.chromium.org/1217573002
105 lines
4.4 KiB
C++
105 lines
4.4 KiB
C++
/*
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* Copyright 2013 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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#ifndef SkNulCanvas_DEFINED
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#define SkNulCanvas_DEFINED
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#include "SkCanvas.h"
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/** \class SkNulCanvas
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*
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* Nul Canvas is a canvas that does nothing. It is used to measure the perf of just parsing
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* a pdf, without actually rendering anything.
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*
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*/
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class SK_API SkNulCanvas : public SkCanvas {
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public:
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SkNulCanvas() {}
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explicit SkNulCanvas(SkBaseDevice* device) : SkCanvas(device) {}
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explicit SkNulCanvas(const SkBitmap& bitmap) : SkCanvas(bitmap) {}
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virtual ~SkNulCanvas() {}
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SkDrawFilter* setDrawFilter(SkDrawFilter* filter) override {return NULL;}
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bool isClipEmpty() const override { return false; }
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bool getClipBounds(SkRect* bounds) const override {
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if (NULL != bounds) {
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bounds->setXYWH(0, 0,
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SkIntToScalar(this->imageInfo().width()),
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SkIntToScalar(this->imageInfo().height()));
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}
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return true;
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}
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bool getClipDeviceBounds(SkIRect* bounds) const override {
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if (NULL != bounds) {
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bounds->setLargest();
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}
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return true;
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}
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protected:
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virtual SkCanvas* canvasForDrawIter() {return NULL;}
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virtual SkBaseDevice* setDevice(SkBaseDevice* device) {return NULL;}
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virtual SaveLayerStrategy willSaveLayer(const SkRect* bounds, const SkPaint* paint,
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SaveFlags flags) override {
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this->INHERITED::willSaveLayer(bounds, paint, flags);
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return kNoLayer_SaveLayerStrategy;
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}
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virtual void onDrawText(const void* text, size_t byteLength, SkScalar x,
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SkScalar y, const SkPaint& paint) override {}
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virtual void onDrawPosText(const void* text, size_t byteLength,
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const SkPoint pos[], const SkPaint& paint) override {}
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virtual void onDrawPosTextH(const void* text, size_t byteLength,
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const SkScalar xpos[], SkScalar constY,
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const SkPaint& paint) override {}
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virtual void onDrawTextOnPath(const void* text, size_t byteLength,
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const SkPath& path, const SkMatrix* matrix,
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const SkPaint& paint) override {}
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void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override {}
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void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override {}
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void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override {}
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void onClipRegion(const SkRegion&, SkRegion::Op) override {}
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void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override {}
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void onDrawPaint(const SkPaint& paint) override {}
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void onDrawPoints(PointMode mode, size_t count, const SkPoint pts[],
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const SkPaint& paint) override {}
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void onDrawRect(const SkRect& rect, const SkPaint& paint) override {}
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void onDrawOval(const SkRect& oval, const SkPaint&) override {}
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void onDrawRRect(const SkRRect& rrect, const SkPaint& paint) override {}
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void onDrawPath(const SkPath& path, const SkPaint& paint) override {}
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void onDrawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
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const SkPaint* paint = NULL) override {}
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void onDrawBitmapRect(const SkBitmap& bitmap, const SkRect* src,
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const SkRect& dst,
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const SkPaint* paint,
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DrawBitmapRectFlags flags) override {}
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void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override {}
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void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
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const SkPaint*) override{}
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void onDrawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
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const SkRect& dst, const SkPaint* paint = NULL) override {}
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void onDrawSprite(const SkBitmap& bitmap, int left, int top,
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const SkPaint* paint = NULL) override {}
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void onDrawVertices(VertexMode vmode, int vertexCount,
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const SkPoint vertices[], const SkPoint texs[],
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const SkColor colors[], SkXfermode* xmode,
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const uint16_t indices[], int indexCount,
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const SkPaint& paint) override {}
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private:
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typedef SkCanvas INHERITED;
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};
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#endif // SkNulCanvas_DEFINED
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