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      1 
      2 /*
      3  * Copyright 2013 Google Inc.
      4  *
      5  * Use of this source code is governed by a BSD-style license that can be
      6  * found in the LICENSE file.
      7  */
      8 
      9 #include "SkBenchmark.h"
     10 #include "SkCanvas.h"
     11 #include "SkConfig8888.h"
     12 #include "SkString.h"
     13 
     14 class WritePixelsBench : public SkBenchmark {
     15 public:
     16     WritePixelsBench(SkCanvas::Config8888 config)
     17         : fConfig(config)
     18         , fName("writepix") {
     19         switch (config) {
     20             case SkCanvas::kNative_Premul_Config8888:
     21                 fName.append("_native_PM");
     22                 break;
     23             case SkCanvas::kNative_Unpremul_Config8888:
     24                 fName.append("_native_UPM");
     25                 break;
     26             case SkCanvas::kBGRA_Premul_Config8888:
     27                 fName.append("_bgra_PM");
     28                 break;
     29             case SkCanvas::kBGRA_Unpremul_Config8888:
     30                 fName.append("_bgra_UPM");
     31                 break;
     32             case SkCanvas::kRGBA_Premul_Config8888:
     33                 fName.append("_rgba_PM");
     34                 break;
     35             case SkCanvas::kRGBA_Unpremul_Config8888:
     36                 fName.append("_rgba_UPM");
     37                 break;
     38             default:
     39                 SK_CRASH();
     40                 break;
     41         }
     42     }
     43 
     44 protected:
     45     virtual const char* onGetName() SK_OVERRIDE {
     46         return fName.c_str();
     47     }
     48 
     49     virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
     50         SkISize size = canvas->getDeviceSize();
     51 
     52         canvas->clear(0xFFFF0000);
     53 
     54         SkBitmap bmp;
     55         bmp.setConfig(SkBitmap::kARGB_8888_Config, size.width(), size.height());
     56         canvas->readPixels(&bmp, 0, 0);
     57 
     58         for (int loop = 0; loop < loops; ++loop) {
     59             canvas->writePixels(bmp, 0, 0, fConfig);
     60         }
     61     }
     62 
     63 private:
     64     SkCanvas::Config8888 fConfig;
     65     SkString             fName;
     66 
     67     typedef SkBenchmark INHERITED;
     68 };
     69 
     70 //////////////////////////////////////////////////////////////////////////////
     71 
     72 DEF_BENCH( return SkNEW_ARGS(WritePixelsBench, (SkCanvas::kRGBA_Premul_Config8888)); )
     73 DEF_BENCH( return SkNEW_ARGS(WritePixelsBench, (SkCanvas::kRGBA_Unpremul_Config8888)); )
     74