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| 1 /* |
| 2 * Copyright 2013 Google Inc. |
| 3 * |
| 4 * Use of this source code is governed by a BSD-style license that can be |
| 5 * found in the LICENSE file. |
| 6 */ |
| 7 |
| 8 #include "SkBenchmark.h" |
| 9 #include "SkBitmap.h" |
| 10 #include "SkData.h" |
| 11 #include "SkForceLinking.h" |
| 12 #include "SkImageDecoder.h" |
| 13 #include "SkOSFile.h" |
| 14 #include "SkStream.h" |
| 15 #include "SkString.h" |
| 16 |
| 17 __SK_FORCE_IMAGE_DECODER_LINKING; |
| 18 |
| 19 class SkCanvas; |
| 20 |
| 21 class SkipZeroesBench : public SkBenchmark { |
| 22 public: |
| 23 SkipZeroesBench(const char* filename, bool skipZeroes) |
| 24 : fName("SkipZeroes_") |
| 25 , fDecoder(NULL) |
| 26 , fFilename(filename) |
| 27 , fStream() |
| 28 , fSkipZeroes(skipZeroes) |
| 29 , fValid(false) { |
| 30 fName.append(filename); |
| 31 if (skipZeroes) { |
| 32 fName.append("_skip_zeroes"); |
| 33 } else { |
| 34 fName.append("_write_zeroes"); |
| 35 } |
| 36 fIsRendering = false; |
| 37 } |
| 38 |
| 39 protected: |
| 40 virtual const char* onGetName() SK_OVERRIDE { |
| 41 return fName.c_str(); |
| 42 } |
| 43 |
| 44 virtual void onPreDraw() SK_OVERRIDE { |
| 45 const char* resPath = GetResourcePath().c_str(); |
| 46 if (NULL == resPath) { |
| 47 fValid = false; |
| 48 return; |
| 49 } |
| 50 |
| 51 SkString fullPath = SkOSPath::SkPathJoin(resPath, fFilename.c_str()); |
| 52 SkFILEStream fileStream(fullPath.c_str()); |
| 53 fValid = fileStream.isValid() && fileStream.getLength() > 0; |
| 54 if (fValid) { |
| 55 const size_t size = fileStream.getLength(); |
| 56 void* data = sk_malloc_throw(size); |
| 57 if (fileStream.read(data, size) < size) { |
| 58 fValid = false; |
| 59 } else { |
| 60 SkAutoTUnref<SkData> skdata(SkData::NewFromMalloc(data, size)); |
| 61 fStream.setData(skdata.get()); |
| 62 fDecoder.reset(SkImageDecoder::Factory(&fStream)); |
| 63 if (fDecoder.get()) { |
| 64 // Disabling until the feature is checked in. |
| 65 // See https://codereview.chromium.org/24269006/ |
| 66 //fDecoder->setSkipWritingZeroes(fSkipZeroes); |
| 67 } else { |
| 68 fValid = false; |
| 69 } |
| 70 } |
| 71 } |
| 72 } |
| 73 |
| 74 virtual void onDraw(SkCanvas*) SK_OVERRIDE { |
| 75 if (!fValid) { |
| 76 #ifdef SK_DEBUG |
| 77 SkDebugf("stream was invalid: %s\n", fFilename.c_str()); |
| 78 #endif |
| 79 return; |
| 80 } |
| 81 // Decode a bunch of times |
| 82 SkBitmap bm; |
| 83 for (int i = 0; i < this->getLoops(); ++i) { |
| 84 SkDEBUGCODE(bool success =) fDecoder->decode(&fStream, &bm, |
| 85 SkImageDecoder::kDecode
Pixels_Mode); |
| 86 #ifdef SK_DEBUG |
| 87 if (!success) { |
| 88 SkDebugf("failed to decode %s\n", fFilename.c_str()); |
| 89 return; |
| 90 } |
| 91 #endif |
| 92 SkDEBUGCODE(success =) fStream.rewind(); |
| 93 #ifdef SK_DEBUG |
| 94 if (!success) { |
| 95 SkDebugf("failed to rewind %s\n", fFilename.c_str()); |
| 96 return; |
| 97 } |
| 98 #endif |
| 99 } |
| 100 } |
| 101 |
| 102 private: |
| 103 SkString fName; |
| 104 SkAutoTDelete<SkImageDecoder> fDecoder; |
| 105 const SkString fFilename; |
| 106 SkMemoryStream fStream; |
| 107 bool fSkipZeroes; |
| 108 bool fValid; |
| 109 |
| 110 typedef SkBenchmark INHERITED; |
| 111 }; |
| 112 |
| 113 // Enable the true version once the feature is checked in. |
| 114 //DEF_BENCH( return SkNEW_ARGS(SkipZeroesBench, ("arrow.png", true))); |
| 115 DEF_BENCH( return SkNEW_ARGS(SkipZeroesBench, ("arrow.png", false))); |
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