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/*
* 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 "SkBenchmark.h"
#include "SkCanvas.h"
#include "SkConfig8888.h"
#include "SkString.h"
#include "sk_tool_utils.h"
class PremulAndUnpremulAlphaOpsBench : public SkBenchmark {
public:
PremulAndUnpremulAlphaOpsBench(SkCanvas::Config8888 config) {
fUnPremulConfig = config;
fName.printf("premul_and_unpremul_alpha_%s",
(config == SkCanvas::kRGBA_Unpremul_Config8888) ?
"RGBA8888" : "Native8888");
}
protected:
virtual const char* onGetName() SK_OVERRIDE {
return fName.c_str();
}
virtual void onDraw(const int loops, SkCanvas* canvas) SK_OVERRIDE {
canvas->clear(SK_ColorBLACK);
SkISize size = canvas->getDeviceSize();
SkBitmap bmp1;
bmp1.setConfig(SkBitmap::kARGB_8888_Config, size.width(),
size.height());
bmp1.allocPixels();
SkAutoLockPixels alp(bmp1);
uint32_t* pixels = reinterpret_cast<uint32_t*>(bmp1.getPixels());
for (int h = 0; h < size.height(); ++h) {
for (int w = 0; w < size.width(); ++w)
pixels[h * size.width() + w] = SkPackConfig8888(fUnPremulConfig,
h & 0xFF, w & 0xFF, w & 0xFF, w & 0xFF);
}
SkBitmap bmp2;
bmp2.setConfig(SkBitmap::kARGB_8888_Config, size.width(),
size.height());
SkColorType ct;
SkAlphaType at;
sk_tool_utils::config8888_to_imagetypes(fUnPremulConfig, &ct, &at);
if (bmp1.isOpaque()) {
at = kOpaque_SkAlphaType;
}
for (int loop = 0; loop < loops; ++loop) {
// Unpremul -> Premul
sk_tool_utils::write_pixels(canvas, bmp1, 0, 0, ct, at);
// Premul -> Unpremul
canvas->readPixels(&bmp2, 0, 0, fUnPremulConfig);
}
}
private:
SkCanvas::Config8888 fUnPremulConfig;
SkString fName;
typedef SkBenchmark INHERITED;
};
DEF_BENCH(return new PremulAndUnpremulAlphaOpsBench(SkCanvas::kRGBA_Unpremul_Config8888));
DEF_BENCH(return new PremulAndUnpremulAlphaOpsBench(SkCanvas::kNative_Unpremul_Config8888));
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