3ea01f72f2
Desktop (HP z620) Before: mipmap_build_2048x2048_0_gamma 10.5 ms mipmap_build_2048x2048_1_gamma 77.1 ms After: mipmap_build_2048x2048_0_gamma 10.5 ms mipmap_build_2048x2048_1_gamma 25.1 ms Pixel XL Before: mipmap_build_2048x2048_0_gamma 160 ms mipmap_build_2048x2048_1_gamma 1.5 s After: mipmap_build_2048x2048_0_gamma 160 ms mipmap_build_2048x2048_1_gamma 313 ms Also provides marginal performance improvements for other sRGB downsamples. BUG=skia: Change-Id: Icfcd2ccd69676ccf3822db8042a4698e4464bb71 Reviewed-on: https://skia-review.googlesource.com/9386 Commit-Queue: Matt Sarett <msarett@google.com> Reviewed-by: Mike Klein <mtklein@chromium.org>
71 lines
2.7 KiB
C++
71 lines
2.7 KiB
C++
/*
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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 "Benchmark.h"
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#include "SkBitmap.h"
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#include "SkMipMap.h"
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class MipMapBench: public Benchmark {
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SkBitmap fBitmap;
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SkString fName;
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const int fW, fH;
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SkDestinationSurfaceColorMode fColorMode;
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bool fHalfFoat;
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public:
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MipMapBench(int w, int h, SkDestinationSurfaceColorMode colorMode, bool halfFloat = false)
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: fW(w), fH(h), fColorMode(colorMode), fHalfFoat(halfFloat)
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{
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fName.printf("mipmap_build_%dx%d_%d_gamma", w, h, static_cast<int>(colorMode));
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if (halfFloat) {
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fName.append("_f16");
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}
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}
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protected:
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bool isSuitableFor(Backend backend) override {
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return kNonRendering_Backend == backend;
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}
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const char* onGetName() override { return fName.c_str(); }
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void onDelayedSetup() override {
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SkImageInfo info = fHalfFoat ? SkImageInfo::Make(fW, fH, kRGBA_F16_SkColorType,
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kPremul_SkAlphaType,
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SkColorSpace::MakeSRGBLinear())
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: SkImageInfo::MakeS32(fW, fH, kPremul_SkAlphaType);
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fBitmap.allocPixels(info);
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fBitmap.eraseColor(SK_ColorWHITE); // so we don't read uninitialized memory
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}
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void onDraw(int loops, SkCanvas*) override {
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for (int i = 0; i < loops * 4; i++) {
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SkMipMap::Build(fBitmap, fColorMode, nullptr)->unref();
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}
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}
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private:
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typedef Benchmark INHERITED;
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};
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// Build variants that exercise the width and heights being even or odd at each level, as the
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// impl specializes on each of these.
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//
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DEF_BENCH( return new MipMapBench(511, 511, SkDestinationSurfaceColorMode::kLegacy); )
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DEF_BENCH( return new MipMapBench(512, 511, SkDestinationSurfaceColorMode::kLegacy); )
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DEF_BENCH( return new MipMapBench(511, 512, SkDestinationSurfaceColorMode::kLegacy); )
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DEF_BENCH( return new MipMapBench(512, 512, SkDestinationSurfaceColorMode::kLegacy); )
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DEF_BENCH( return new MipMapBench(512, 512,
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SkDestinationSurfaceColorMode::kGammaAndColorSpaceAware); )
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DEF_BENCH( return new MipMapBench(511, 511,
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SkDestinationSurfaceColorMode::kGammaAndColorSpaceAware); )
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DEF_BENCH( return new MipMapBench(512, 512, SkDestinationSurfaceColorMode::kLegacy, true); )
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DEF_BENCH( return new MipMapBench(511, 511, SkDestinationSurfaceColorMode::kLegacy, true); )
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DEF_BENCH( return new MipMapBench(2048, 2048, SkDestinationSurfaceColorMode::kLegacy); )
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DEF_BENCH( return new MipMapBench(2048, 2048,
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SkDestinationSurfaceColorMode::kGammaAndColorSpaceAware); )
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