skia/ext/benchmarking_canvas.h

   1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef SKIA_EXT_BENCHMARKING_CANVAS_H_
   6 #define SKIA_EXT_BENCHMARKING_CANVAS_H_
   7
   8 #include "base/values.h"
   9 #include "skia/ext/refptr.h"
  10 #include "third_party/skia/include/utils/SkNWayCanvas.h"
  11
  12 class SkXfermode;
  13
  14 namespace skia {
  15
  16 class SK_API BenchmarkingCanvas : public SkNWayCanvas {
  17 public:
  18   BenchmarkingCanvas(SkCanvas* canvas, unsigned flags = 0);
  19   ~BenchmarkingCanvas() override;
  20
  21   enum Flags {
  22       kOverdrawVisualization_Flag = 0x01,
  23   };
  24
  25   // Returns the number of draw commands executed on this canvas.
  26   size_t CommandCount() const;
  27
  28   // Returns the list of executed draw commands.
  29   const base::ListValue& Commands() const;
  30
  31   // Return the recorded render time (milliseconds) for a draw command index.
  32   double GetTime(size_t index);
  33
  34 protected:
  35   // SkCanvas overrides
  36   void willSave() override;
  37   SaveLayerStrategy willSaveLayer(const SkRect*,
  38                                   const SkPaint*,
  39                                   SaveFlags) override;
  40   void willRestore() override;
  41
  42   void didConcat(const SkMatrix&) override;
  43   void didSetMatrix(const SkMatrix&) override;
  44
  45   void onClipRect(const SkRect&, SkRegion::Op, ClipEdgeStyle) override;
  46   void onClipRRect(const SkRRect&, SkRegion::Op, ClipEdgeStyle) override;
  47   void onClipPath(const SkPath&, SkRegion::Op, ClipEdgeStyle) override;
  48   void onClipRegion(const SkRegion&, SkRegion::Op) override;
  49
  50   void onDrawPaint(const SkPaint&) override;
  51   void onDrawPoints(PointMode, size_t count, const SkPoint pts[],
  52                     const SkPaint&) override;
  53   void onDrawRect(const SkRect&, const SkPaint&) override;
  54   void onDrawOval(const SkRect&, const SkPaint&) override;
  55   void onDrawRRect(const SkRRect&, const SkPaint&) override;
  56   void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) override;
  57   void onDrawPath(const SkPath&, const SkPaint&) override;
  58
  59   void onDrawPicture(const SkPicture*, const SkMatrix*, const SkPaint*) override;
  60
  61   void onDrawBitmap(const SkBitmap&, SkScalar left, SkScalar top, const SkPaint*) override;
  62   void onDrawBitmapRect(const SkBitmap&, const SkRect* src, const SkRect& dst,
  63                         const SkPaint*, SrcRectConstraint) override;
  64   void onDrawImage(const SkImage*, SkScalar left, SkScalar top, const SkPaint*) override;
  65   void onDrawImageRect(const SkImage*, const SkRect* src, const SkRect& dst,
  66                        const SkPaint*, SrcRectConstraint) override;
  67   void onDrawBitmapNine(const SkBitmap&, const SkIRect& center, const SkRect& dst,
  68                         const SkPaint*) override;
  69   void onDrawSprite(const SkBitmap&, int left, int top, const SkPaint*) override;
  70
  71   void onDrawText(const void* text, size_t byteLength, SkScalar x, SkScalar y,
  72                   const SkPaint&) override;
  73   void onDrawPosText(const void* text, size_t byteLength, const SkPoint pos[],
  74                      const SkPaint&) override;
  75   void onDrawPosTextH(const void* text, size_t byteLength, const SkScalar xpos[],
  76                       SkScalar constY, const SkPaint&) override;
  77   void onDrawTextOnPath(const void* text, size_t byteLength, const SkPath& path,
  78                         const SkMatrix* matrix, const SkPaint&) override;
  79   void onDrawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
  80                       const SkPaint& paint) override;
  81
  82 private:
  83   typedef SkNWayCanvas INHERITED;
  84
  85   class AutoOp;
  86
  87   base::ListValue op_records_;
  88   unsigned flags_;
  89   RefPtr<SkXfermode> overdraw_xfermode_;
  90 };
  91
  92 }
  93 #endif // SKIA_EXT_BENCHMARKING_CANVAS_H