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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 "SkImageDecoder.h"
     11 #include "SkString.h"
     12 
     13 static const char* gConfigName[] = {
     14     "ERROR", "a1", "a8", "index8", "565", "4444", "8888"
     15 };
     16 
     17 class DecodeBench : public SkBenchmark {
     18     const char* fFilename;
     19     SkBitmap::Config fPrefConfig;
     20     SkString fName;
     21     enum { N = SkBENCHLOOP(10) };
     22 public:
     23     DecodeBench(void* param, SkBitmap::Config c) : SkBenchmark(param) {
     24         fFilename = this->findDefine("decode-filename");
     25         fPrefConfig = c;
     26 
     27         const char* fname = NULL;
     28         if (fFilename) {
     29             fname = strrchr(fFilename, '/');
     30             if (fname) {
     31                 fname += 1; // skip the slash
     32             }
     33         }
     34         fName.printf("decode_%s_%s", gConfigName[c], fname);
     35         fIsRendering = false;
     36     }
     37 
     38 protected:
     39     virtual const char* onGetName() {
     40         return fName.c_str();
     41     }
     42 
     43     virtual void onDraw(SkCanvas*) {
     44         if (fFilename) {
     45             for (int i = 0; i < N; i++) {
     46                 SkBitmap bm;
     47                 SkImageDecoder::DecodeFile(fFilename, &bm, fPrefConfig,
     48                                            SkImageDecoder::kDecodePixels_Mode);
     49             }
     50         }
     51     }
     52 
     53 private:
     54     typedef SkBenchmark INHERITED;
     55 };
     56 
     57 static SkBenchmark* Fact0(void* p) { return new DecodeBench(p, SkBitmap::kARGB_8888_Config); }
     58 static SkBenchmark* Fact1(void* p) { return new DecodeBench(p, SkBitmap::kRGB_565_Config); }
     59 static SkBenchmark* Fact2(void* p) { return new DecodeBench(p, SkBitmap::kARGB_4444_Config); }
     60 
     61 static BenchRegistry gReg0(Fact0);
     62 static BenchRegistry gReg1(Fact1);
     63 static BenchRegistry gReg2(Fact2);
     64