63 lines
1.7 KiB
C++
63 lines
1.7 KiB
C++
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/*
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* Copyright 2015 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "DecodingBench.h"
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#include "SkData.h"
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#include "SkImageDecoder.h"
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#include "SkOSFile.h"
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#include "SkStream.h"
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/*
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*
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* This benchmark is designed to test the performance of image decoding.
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* It is invoked from the nanobench.cpp file.
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*
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*/
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DecodingBench::DecodingBench(SkString path, SkColorType colorType)
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: fColorType(colorType)
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{
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// Parse filename and the color type to give the benchmark a useful name
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SkString baseName = SkOSPath::Basename(path.c_str());
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const char* colorName;
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switch(colorType) {
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case kN32_SkColorType:
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colorName = "N32";
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break;
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case kRGB_565_SkColorType:
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colorName = "565";
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break;
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case kAlpha_8_SkColorType:
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colorName = "Alpha8";
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break;
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default:
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colorName = "Unknown";
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}
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fName.printf("Decode_%s_%s", baseName.c_str(), colorName);
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// Perform setup for the decode
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SkAutoTUnref<SkData> encoded(SkData::NewFromFileName(path.c_str()));
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fStream.reset(new SkMemoryStream(encoded));
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fDecoder.reset(SkImageDecoder::Factory(fStream.get()));
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}
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const char* DecodingBench::onGetName() {
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return fName.c_str();
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}
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bool DecodingBench::isSuitableFor(Backend backend) {
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return kNonRendering_Backend == backend;
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}
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void DecodingBench::onDraw(const int n, SkCanvas* canvas) {
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SkBitmap bitmap;
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for (int i = 0; i < n; i++) {
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fStream->rewind();
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fDecoder->decode(fStream, &bitmap, fColorType,
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SkImageDecoder::kDecodePixels_Mode);
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}
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}
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