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      1 
      2 /*
      3  * Copyright 2011 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 #include "SkBenchmark.h"
      9 #include "SkBitmap.h"
     10 #include "SkCommandLineFlags.h"
     11 #include "SkImageDecoder.h"
     12 #include "SkString.h"
     13 
     14 DEFINE_string(decodeBenchFilename, "resources/CMYK.jpeg", "Path to image for DecodeBench.");
     15 
     16 static const char* gConfigName[] = {
     17     "ERROR", "a1", "a8", "index8", "565", "4444", "8888"
     18 };
     19 
     20 class DecodeBench : public SkBenchmark {
     21     SkBitmap::Config fPrefConfig;
     22     SkString fName;
     23 public:
     24     DecodeBench(SkBitmap::Config c) {
     25         fPrefConfig = c;
     26 
     27         const char* fname = strrchr(FLAGS_decodeBenchFilename[0], '/');
     28         if (fname) {
     29             fname++; // skip the slash
     30         }
     31         fName.printf("decode_%s_%s", gConfigName[c], fname);
     32     }
     33 
     34     virtual bool isSuitableFor(Backend backend) SK_OVERRIDE {
     35         return backend == kNonRendering_Backend;
     36     }
     37 
     38 protected:
     39     virtual const char* onGetName() {
     40         return fName.c_str();
     41     }
     42 
     43     virtual void onDraw(const int loops, SkCanvas*) {
     44         for (int i = 0; i < loops; i++) {
     45             SkBitmap bm;
     46             SkImageDecoder::DecodeFile(FLAGS_decodeBenchFilename[0],
     47                                        &bm,
     48                                        fPrefConfig,
     49                                        SkImageDecoder::kDecodePixels_Mode);
     50         }
     51     }
     52 
     53 private:
     54     typedef SkBenchmark INHERITED;
     55 };
     56 
     57 DEF_BENCH( return new DecodeBench(SkBitmap::kARGB_8888_Config); )
     58 DEF_BENCH( return new DecodeBench(SkBitmap::kRGB_565_Config); )
     59 DEF_BENCH( return new DecodeBench(SkBitmap::kARGB_4444_Config); )
     60