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* Copyright 2015 Google Inc.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
#include "bench/CodecBench.h"
#include "bench/CodecBenchPriv.h"
#include "include/codec/SkCodec.h"
#include "include/core/SkBitmap.h"
#include "src/core/SkOSFile.h"
#include "tools/flags/CommandLineFlags.h"
// Actually zeroing the memory would throw off timing, so we just lie.
static DEFINE_bool(zero_init, false,
"Pretend our destination is zero-intialized, simulating Android?");
CodecBench::CodecBench(SkString baseName, SkData* encoded, SkColorType colorType,
SkAlphaType alphaType)
: fColorType(colorType)
, fAlphaType(alphaType)
, fData(SkRef(encoded))
// Parse filename and the color type to give the benchmark a useful name
fName.printf("Codec_%s_%s%s", baseName.c_str(), color_type_to_str(colorType),
// Ensure that we can create an SkCodec from this data.
const char* CodecBench::onGetName() {
return fName.c_str();
bool CodecBench::isSuitableFor(Backend backend) {
return Backend::kNonRendering == backend;
void CodecBench::onDelayedSetup() {
std::unique_ptr<SkCodec> codec = SkCodec::MakeFromData(fData);
fInfo = codec->getInfo().makeColorType(fColorType)
void CodecBench::onDraw(int n, SkCanvas* canvas) {
std::unique_ptr<SkCodec> codec;
SkCodec::Options options;
if (FLAGS_zero_init) {
options.fZeroInitialized = SkCodec::kYes_ZeroInitialized;
for (int i = 0; i < n; i++) {
codec = SkCodec::MakeFromData(fData);
#ifdef SK_DEBUG
const SkCodec::Result result =
codec->getPixels(fInfo, fPixelStorage.get(), fInfo.minRowBytes(),
SkASSERT(result == SkCodec::kSuccess
|| result == SkCodec::kIncompleteInput);