skia/ext/benchmarking_canvas.cc

   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 #include "base/containers/hash_tables.h"
   6 #include "base/logging.h"
   7 #include "base/time/time.h"
   8 #include "skia/ext/benchmarking_canvas.h"
   9 #include "third_party/skia/include/utils/SkProxyCanvas.h"
  10
  11 namespace skia {
  12
  13 class AutoStamper {
  14 public:
  15   AutoStamper(TimingCanvas* timing_canvas);
  16   ~AutoStamper();
  17
  18 private:
  19   TimingCanvas* timing_canvas_;
  20   base::TimeTicks start_ticks_;
  21 };
  22
  23 class TimingCanvas : public SkProxyCanvas {
  24 public:
  25   TimingCanvas(int width, int height, const BenchmarkingCanvas* track_canvas)
  26       : tracking_canvas_(track_canvas) {
  27     canvas_ = skia::AdoptRef(SkCanvas::NewRasterN32(width, height));
  28
  29     setProxy(canvas_.get());
  30   }
  31
  32   virtual ~TimingCanvas() {
  33   }
  34
  35   double GetTime(size_t index) {
  36     TimingsMap::const_iterator timing_info = timings_map_.find(index);
  37     return timing_info != timings_map_.end()
  38         ? timing_info->second.InMillisecondsF()
  39         : 0.0;
  40   }
  41
  42   // SkCanvas overrides.
  43   virtual void willSave() OVERRIDE {
  44     AutoStamper stamper(this);
  45     SkProxyCanvas::willSave();
  46   }
  47
  48   virtual SaveLayerStrategy willSaveLayer(const SkRect* bounds,
  49                                           const SkPaint* paint,
  50                                           SaveFlags flags) OVERRIDE {
  51     AutoStamper stamper(this);
  52     return SkProxyCanvas::willSaveLayer(bounds, paint, flags);
  53   }
  54
  55   virtual void willRestore() OVERRIDE {
  56     AutoStamper stamper(this);
  57     SkProxyCanvas::willRestore();
  58   }
  59
  60   virtual void drawPaint(const SkPaint& paint) OVERRIDE {
  61     AutoStamper stamper(this);
  62     SkProxyCanvas::drawPaint(paint);
  63   }
  64
  65   virtual void drawPoints(PointMode mode, size_t count, const SkPoint pts[],
  66                           const SkPaint& paint) OVERRIDE {
  67     AutoStamper stamper(this);
  68     SkProxyCanvas::drawPoints(mode, count, pts, paint);
  69   }
  70
  71   virtual void drawOval(const SkRect& rect, const SkPaint& paint) OVERRIDE {
  72     AutoStamper stamper(this);
  73     SkProxyCanvas::drawOval(rect, paint);
  74   }
  75
  76   virtual void drawRect(const SkRect& rect, const SkPaint& paint) OVERRIDE {
  77     AutoStamper stamper(this);
  78     SkProxyCanvas::drawRect(rect, paint);
  79   }
  80
  81   virtual void drawRRect(const SkRRect& rrect, const SkPaint& paint) OVERRIDE {
  82     AutoStamper stamper(this);
  83     SkProxyCanvas::drawRRect(rrect, paint);
  84   }
  85
  86   virtual void drawPath(const SkPath& path, const SkPaint& paint) OVERRIDE {
  87     AutoStamper stamper(this);
  88     SkProxyCanvas::drawPath(path, paint);
  89   }
  90
  91   virtual void drawBitmap(const SkBitmap& bitmap, SkScalar left, SkScalar top,
  92                           const SkPaint* paint = NULL) OVERRIDE {
  93     AutoStamper stamper(this);
  94     SkProxyCanvas::drawBitmap(bitmap, left, top, paint);
  95   }
  96
  97   virtual void drawBitmapRectToRect(const SkBitmap& bitmap, const SkRect* src,
  98                                     const SkRect& dst,
  99                                     const SkPaint* paint,
 100                                     DrawBitmapRectFlags flags) OVERRIDE {
 101     AutoStamper stamper(this);
 102     SkProxyCanvas::drawBitmapRectToRect(bitmap, src, dst, paint, flags);
 103   }
 104
 105   virtual void drawBitmapMatrix(const SkBitmap& bitmap, const SkMatrix& m,
 106                                 const SkPaint* paint = NULL) OVERRIDE {
 107     AutoStamper stamper(this);
 108     SkProxyCanvas::drawBitmapMatrix(bitmap, m, paint);
 109   }
 110
 111   virtual void drawSprite(const SkBitmap& bitmap, int left, int top,
 112                           const SkPaint* paint = NULL) OVERRIDE {
 113     AutoStamper stamper(this);
 114     SkProxyCanvas::drawSprite(bitmap, left, top, paint);
 115   }
 116
 117   virtual void drawVertices(VertexMode vmode, int vertexCount,
 118                             const SkPoint vertices[], const SkPoint texs[],
 119                             const SkColor colors[], SkXfermode* xmode,
 120                             const uint16_t indices[], int indexCount,
 121                             const SkPaint& paint) OVERRIDE {
 122     AutoStamper stamper(this);
 123     SkProxyCanvas::drawVertices(vmode, vertexCount, vertices, texs, colors,
 124                                 xmode, indices, indexCount, paint);
 125   }
 126
 127   virtual void drawData(const void* data, size_t length) OVERRIDE {
 128     AutoStamper stamper(this);
 129     SkProxyCanvas::drawData(data, length);
 130   }
 131
 132 protected:
 133   virtual void onDrawText(const void* text, size_t byteLength, SkScalar x,
 134                           SkScalar y, const SkPaint& paint) OVERRIDE {
 135     AutoStamper stamper(this);
 136     SkProxyCanvas::onDrawText(text, byteLength, x, y, paint);
 137   }
 138
 139   virtual void onDrawPosText(const void* text, size_t byteLength,
 140                              const SkPoint pos[],
 141                              const SkPaint& paint) OVERRIDE {
 142     AutoStamper stamper(this);
 143     SkProxyCanvas::onDrawPosText(text, byteLength, pos, paint);
 144   }
 145
 146   virtual void onDrawPosTextH(const void* text, size_t byteLength,
 147                               const SkScalar xpos[], SkScalar constY,
 148                               const SkPaint& paint) OVERRIDE {
 149     AutoStamper stamper(this);
 150     SkProxyCanvas::onDrawPosTextH(text, byteLength, xpos, constY, paint);
 151   }
 152
 153   virtual void onDrawTextOnPath(const void* text, size_t byteLength,
 154                                 const SkPath& path, const SkMatrix* matrix,
 155                                 const SkPaint& paint) OVERRIDE {
 156     AutoStamper stamper(this);
 157     SkProxyCanvas::onDrawTextOnPath(text, byteLength, path, matrix, paint);
 158   }
 159
 160   virtual void onClipRect(const SkRect& rect, SkRegion::Op op,
 161                           ClipEdgeStyle edge_style) OVERRIDE {
 162     AutoStamper stamper(this);
 163     SkProxyCanvas::onClipRect(rect, op, edge_style);
 164   }
 165
 166   virtual void onClipRRect(const SkRRect& rrect, SkRegion::Op op,
 167                           ClipEdgeStyle edge_style) OVERRIDE {
 168     AutoStamper stamper(this);
 169     SkProxyCanvas::onClipRRect(rrect, op, edge_style);
 170   }
 171
 172   virtual void onClipPath(const SkPath& path, SkRegion::Op op,
 173                           ClipEdgeStyle edge_style) OVERRIDE {
 174     AutoStamper stamper(this);
 175     SkProxyCanvas::onClipPath(path, op, edge_style);
 176   }
 177
 178   virtual void onClipRegion(const SkRegion& region,
 179                             SkRegion::Op op) OVERRIDE {
 180     AutoStamper stamper(this);
 181     SkProxyCanvas::onClipRegion(region, op);
 182   }
 183
 184   virtual void onDrawPicture(const SkPicture* picture, const SkMatrix* matrix,
 185                              const SkPaint* paint) OVERRIDE {
 186     AutoStamper stamper(this);
 187     SkProxyCanvas::onDrawPicture(picture, matrix, paint);
 188   }
 189
 190 private:
 191   typedef base::hash_map<size_t, base::TimeDelta> TimingsMap;
 192   TimingsMap timings_map_;
 193
 194   skia::RefPtr<SkCanvas> canvas_;
 195
 196   friend class AutoStamper;
 197   const BenchmarkingCanvas* tracking_canvas_;
 198 };
 199
 200 AutoStamper::AutoStamper(TimingCanvas *timing_canvas)
 201     : timing_canvas_(timing_canvas) {
 202   start_ticks_ = base::TimeTicks::HighResNow();
 203 }
 204
 205 AutoStamper::~AutoStamper() {
 206   base::TimeDelta delta = base::TimeTicks::HighResNow() - start_ticks_;
 207   int command_index = timing_canvas_->tracking_canvas_->CommandCount() - 1;
 208   DCHECK_GE(command_index, 0);
 209   timing_canvas_->timings_map_[command_index] = delta;
 210 }
 211
 212 BenchmarkingCanvas::BenchmarkingCanvas(int width, int height)
 213     : SkNWayCanvas(width, height) {
 214   debug_canvas_ = skia::AdoptRef(SkNEW_ARGS(SkDebugCanvas, (width, height)));
 215   timing_canvas_ = skia::AdoptRef(SkNEW_ARGS(TimingCanvas, (width, height, this)));
 216
 217   addCanvas(debug_canvas_.get());
 218   addCanvas(timing_canvas_.get());
 219 }
 220
 221 BenchmarkingCanvas::~BenchmarkingCanvas() {
 222   removeAll();
 223 }
 224
 225 size_t BenchmarkingCanvas::CommandCount() const {
 226   return debug_canvas_->getSize();
 227 }
 228
 229 SkDrawCommand* BenchmarkingCanvas::GetCommand(size_t index) {
 230   DCHECK_LT(index, static_cast<size_t>(debug_canvas_->getSize()));
 231   return debug_canvas_->getDrawCommandAt(index);
 232 }
 233
 234 double BenchmarkingCanvas::GetTime(size_t index) {
 235   DCHECK_LT(index,  static_cast<size_t>(debug_canvas_->getSize()));
 236   return timing_canvas_->GetTime(index);
 237 }
 238
 239 } // namespace skia