f1292bc01f
(To allow a roll fix into the tree). This reverts commit edf702204be42c945254191f9f9cd6585b3d189b. R=halcanary@google.com Review URL: https://codereview.chromium.org/194923008 git-svn-id: http://skia.googlecode.com/svn/trunk@13748 2bbb7eff-a529-9590-31e7-b0007b416f81
119 lines
5.8 KiB
C++
119 lines
5.8 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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SK_DECLARE_INST_COUNT(SkNulCanvas);
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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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virtual int save(SaveFlags flags = kMatrixClip_SaveFlag) SK_OVERRIDE {return 0;}
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virtual int saveLayer(const SkRect* bounds, const SkPaint* paint,
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SaveFlags flags = kARGB_ClipLayer_SaveFlag) SK_OVERRIDE {return 0;}
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int saveLayerAlpha(const SkRect* bounds, U8CPU alpha,
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SaveFlags flags = kARGB_ClipLayer_SaveFlag) {return 0;}
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virtual void restore() SK_OVERRIDE {}
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int getSaveCount() const {return 0;}
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virtual bool isDrawingToLayer() const SK_OVERRIDE {return false;}
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virtual bool translate(SkScalar dx, SkScalar dy) SK_OVERRIDE {return true;}
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virtual bool scale(SkScalar sx, SkScalar sy) SK_OVERRIDE {return true;}
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virtual bool rotate(SkScalar degrees) SK_OVERRIDE {return true;}
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virtual bool skew(SkScalar sx, SkScalar sy) SK_OVERRIDE {return true;}
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virtual bool concat(const SkMatrix& matrix) SK_OVERRIDE {return true;}
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virtual void setMatrix(const SkMatrix& matrix) SK_OVERRIDE {}
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virtual void clear(SkColor) SK_OVERRIDE {}
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virtual void drawPaint(const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
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const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawRect(const SkRect& rect, const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawOval(const SkRect& oval, const SkPaint&) SK_OVERRIDE {}
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virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawPath(const SkPath& path, const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
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const SkPaint* paint = NULL) SK_OVERRIDE {}
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virtual void drawBitmapRectToRect(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) SK_OVERRIDE {}
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virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
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const SkPaint* paint = NULL) SK_OVERRIDE {}
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virtual void drawBitmapNine(const SkBitmap& bitmap, const SkIRect& center,
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const SkRect& dst, const SkPaint* paint = NULL) SK_OVERRIDE {}
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virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
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const SkPaint* paint = NULL) SK_OVERRIDE {}
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virtual void drawText(const void* text, size_t byteLength, SkScalar x,
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SkScalar y, const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawPosText(const void* text, size_t byteLength,
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const SkPoint pos[], const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawPosTextH(const void* text, size_t byteLength,
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const SkScalar xpos[], SkScalar constY,
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const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawTextOnPath(const void* text, size_t byteLength,
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const SkPath& path, const SkMatrix* matrix,
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const SkPaint& paint) SK_OVERRIDE {}
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virtual void drawPicture(SkPicture& picture) SK_OVERRIDE {}
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virtual void drawVertices(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) SK_OVERRIDE {}
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virtual void drawData(const void* data, size_t length) SK_OVERRIDE {}
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virtual void beginCommentGroup(const char* description) SK_OVERRIDE {}
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virtual void addComment(const char* kywd, const char* value) SK_OVERRIDE {}
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virtual void endCommentGroup() SK_OVERRIDE {}
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virtual SkBounder* setBounder(SkBounder* bounder) SK_OVERRIDE {return NULL;}
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virtual SkDrawFilter* setDrawFilter(SkDrawFilter* filter) SK_OVERRIDE {return NULL;}
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virtual bool isClipEmpty() const SK_OVERRIDE { return false; }
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#ifdef SK_SUPPORT_LEGACY_GETCLIPTYPE
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virtual ClipType getClipType() const SK_OVERRIDE { return kRect_ClipType; }
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#endif
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virtual bool getClipBounds(SkRect* bounds) const SK_OVERRIDE {
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if (NULL != bounds) {
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bounds->setXYWH(0, 0,
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SkIntToScalar(this->imageInfo().fWidth),
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SkIntToScalar(this->imageInfo().fHeight));
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}
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return true;
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}
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virtual bool getClipDeviceBounds(SkIRect* bounds) const SK_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 void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE {}
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virtual void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE {}
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virtual void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) SK_OVERRIDE {}
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virtual void onClipRegion(const SkRegion&, SkRegion::Op) SK_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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