diff options
Diffstat (limited to 'chromium/third_party/skia/bench/ImageDecodeBench.cpp')
-rw-r--r-- | chromium/third_party/skia/bench/ImageDecodeBench.cpp | 93 |
1 files changed, 93 insertions, 0 deletions
diff --git a/chromium/third_party/skia/bench/ImageDecodeBench.cpp b/chromium/third_party/skia/bench/ImageDecodeBench.cpp new file mode 100644 index 00000000000..47993cfa7db --- /dev/null +++ b/chromium/third_party/skia/bench/ImageDecodeBench.cpp @@ -0,0 +1,93 @@ +/* + * Copyright 2013 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "Benchmark.h" +#include "SkBitmap.h" +#include "SkData.h" +#include "SkForceLinking.h" +#include "SkImageDecoder.h" +#include "SkOSFile.h" +#include "SkStream.h" +#include "SkString.h" + +__SK_FORCE_IMAGE_DECODER_LINKING; + +class SkCanvas; + +class ImageDecodeBench : public Benchmark { +public: + ImageDecodeBench(void* p, const char* filename) + : fName("image_decode_") + , fFilename(filename) + , fStream() + , fValid(false) { + fName.append(SkOSPath::SkBasename(filename)); + } + + virtual bool isSuitableFor(Backend backend) SK_OVERRIDE { + return backend == kNonRendering_Backend; + } + +protected: + virtual const char* onGetName() SK_OVERRIDE { + return fName.c_str(); + } + + virtual void onPreDraw() SK_OVERRIDE { + SkFILEStream fileStream(fFilename.c_str()); + fValid = fileStream.isValid() && fileStream.getLength() > 0; + if (fValid) { + const size_t size = fileStream.getLength(); + void* data = sk_malloc_throw(size); + if (fileStream.read(data, size) < size) { + fValid = false; + } else { + SkAutoTUnref<SkData> skdata(SkData::NewFromMalloc(data, size)); + fStream.setData(skdata.get()); + } + } + } + + virtual void onDraw(const int loops, SkCanvas*) SK_OVERRIDE { +#ifdef SK_DEBUG + if (!fValid) { + SkDebugf("stream was invalid: %s\n", fName.c_str()); + return; + } +#endif + // Decode a bunch of times + SkBitmap bm; + for (int i = 0; i < loops; ++i) { + SkDEBUGCODE(bool success =) SkImageDecoder::DecodeStream(&fStream, &bm); +#ifdef SK_DEBUG + if (!success) { + SkDebugf("failed to decode %s\n", fName.c_str()); + return; + } +#endif + SkDEBUGCODE(success =) fStream.rewind(); +#ifdef SK_DEBUG + if (!success) { + SkDebugf("failed to rewind %s\n", fName.c_str()); + return; + } +#endif + } + } + +private: + SkString fName; + const SkString fFilename; + SkMemoryStream fStream; + bool fValid; + + typedef Benchmark INHERITED; +}; + +// These are files which call decodePalette +//DEF_BENCH( return SkNEW_ARGS(ImageDecodeBench, ("/usr/local/google/home/scroggo/Downloads/images/hal_163x90.png")); ) +//DEF_BENCH( return SkNEW_ARGS(ImageDecodeBench, ("/usr/local/google/home/scroggo/Downloads/images/box_19_top-left.png")); ) |