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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 "bench/Benchmark.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkString.h"
- #include "tools/ToolUtils.h"
- class PremulAndUnpremulAlphaOpsBench : public Benchmark {
- enum {
- W = 256,
- H = 256,
- };
- SkBitmap fBmp1, fBmp2;
- public:
- PremulAndUnpremulAlphaOpsBench(SkColorType ct) {
- fColorType = ct;
- fName.printf("premul_and_unpremul_alpha_%s", ToolUtils::colortype_name(ct));
- }
- protected:
- const char* onGetName() override {
- return fName.c_str();
- }
- void onDelayedSetup() override {
- SkImageInfo info = SkImageInfo::Make(W, H, fColorType, kUnpremul_SkAlphaType);
- fBmp1.allocPixels(info); // used in writePixels
- for (int h = 0; h < H; ++h) {
- for (int w = 0; w < W; ++w) {
- // SkColor places A in the right slot for either RGBA or BGRA
- *fBmp1.getAddr32(w, h) = SkColorSetARGB(h & 0xFF, w & 0xFF, w & 0xFF, w & 0xFF);
- }
- }
- fBmp2.allocPixels(info); // used in readPixels()
- }
- void onDraw(int loops, SkCanvas* canvas) override {
- canvas->clear(SK_ColorBLACK);
- for (int loop = 0; loop < loops; ++loop) {
- // Unpremul -> Premul
- canvas->writePixels(fBmp1.info(), fBmp1.getPixels(), fBmp1.rowBytes(), 0, 0);
- // Premul -> Unpremul
- canvas->readPixels(fBmp2.info(), fBmp2.getPixels(), fBmp2.rowBytes(), 0, 0);
- }
- }
- private:
- SkColorType fColorType;
- SkString fName;
- typedef Benchmark INHERITED;
- };
- DEF_BENCH(return new PremulAndUnpremulAlphaOpsBench(kRGBA_8888_SkColorType));
- DEF_BENCH(return new PremulAndUnpremulAlphaOpsBench(kBGRA_8888_SkColorType));
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