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      1 /*
      2  * Copyright 2015 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 "CodecBench.h"
      9 #include "CodecBenchPriv.h"
     10 #include "SkBitmap.h"
     11 #include "SkCodec.h"
     12 #include "SkCommandLineFlags.h"
     13 #include "SkOSFile.h"
     14 
     15 // Actually zeroing the memory would throw off timing, so we just lie.
     16 DEFINE_bool(zero_init, false, "Pretend our destination is zero-intialized, simulating Android?");
     17 
     18 CodecBench::CodecBench(SkString baseName, SkData* encoded, SkColorType colorType,
     19         SkAlphaType alphaType)
     20     : fColorType(colorType)
     21     , fAlphaType(alphaType)
     22     , fData(SkRef(encoded))
     23 {
     24     // Parse filename and the color type to give the benchmark a useful name
     25     fName.printf("Codec_%s_%s%s", baseName.c_str(), color_type_to_str(colorType),
     26             alpha_type_to_str(alphaType));
     27 #ifdef SK_DEBUG
     28     // Ensure that we can create an SkCodec from this data.
     29     std::unique_ptr<SkCodec> codec(SkCodec::NewFromData(fData));
     30     SkASSERT(codec);
     31 #endif
     32 }
     33 
     34 const char* CodecBench::onGetName() {
     35     return fName.c_str();
     36 }
     37 
     38 bool CodecBench::isSuitableFor(Backend backend) {
     39     return kNonRendering_Backend == backend;
     40 }
     41 
     42 void CodecBench::onDelayedSetup() {
     43     std::unique_ptr<SkCodec> codec(SkCodec::NewFromData(fData));
     44 
     45     fInfo = codec->getInfo().makeColorType(fColorType)
     46                             .makeAlphaType(fAlphaType)
     47                             .makeColorSpace(nullptr);
     48 
     49     fPixelStorage.reset(fInfo.getSafeSize(fInfo.minRowBytes()));
     50 }
     51 
     52 void CodecBench::onDraw(int n, SkCanvas* canvas) {
     53     std::unique_ptr<SkCodec> codec;
     54     SkCodec::Options options;
     55     if (FLAGS_zero_init) {
     56         options.fZeroInitialized = SkCodec::kYes_ZeroInitialized;
     57     }
     58     for (int i = 0; i < n; i++) {
     59         codec.reset(SkCodec::NewFromData(fData));
     60 #ifdef SK_DEBUG
     61         const SkCodec::Result result =
     62 #endif
     63         codec->getPixels(fInfo, fPixelStorage.get(), fInfo.minRowBytes(),
     64                          &options);
     65         SkASSERT(result == SkCodec::kSuccess
     66                  || result == SkCodec::kIncompleteInput);
     67     }
     68 }
     69