| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "Benchmark.h" |
| #include "SkColor.h" |
| #include "SkColorSpaceXformer.h" |
| #include "SkColorSpaceXformSteps.h" |
| #include "SkMakeUnique.h" |
| #include "SkPM4f.h" |
| #include "SkRandom.h" |
| |
| enum class Mode { steps, xformer }; |
| |
| struct ColorSpaceXformBench : public Benchmark { |
| ColorSpaceXformBench(Mode mode) : fMode(mode) {} |
| |
| const Mode fMode; |
| |
| std::unique_ptr<SkColorSpaceXformSteps> fSteps; |
| std::unique_ptr<SkColorSpaceXformer> fXformer; |
| |
| const char* onGetName() override { |
| switch (fMode) { |
| case Mode::steps : return "ColorSpaceXformBench_steps"; |
| case Mode::xformer: return "ColorSpaceXformBench_xformer"; |
| } |
| return ""; |
| } |
| |
| bool isSuitableFor(Backend backend) override { return kNonRendering_Backend == backend; } |
| |
| void onDelayedSetup() override { |
| sk_sp<SkColorSpace> src = SkColorSpace::MakeSRGB(), |
| dst = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma, |
| SkColorSpace::kDCIP3_D65_Gamut); |
| |
| fSteps = skstd::make_unique<SkColorSpaceXformSteps>(src.get(), kOpaque_SkAlphaType, |
| dst.get(), kPremul_SkAlphaType); |
| fXformer = SkColorSpaceXformer::Make(dst); // src is implicitly sRGB, what we want anyway |
| } |
| |
| void onDraw(int n, SkCanvas* canvas) override { |
| volatile SkColor junk = 0; |
| SkRandom rand; |
| |
| for (int i = 0; i < n; i++) { |
| SkColor src = rand.nextU(), |
| dst; |
| switch (fMode) { |
| case Mode::steps: { |
| float rgba[4]; |
| swizzle_rb(Sk4f_fromL32(src)).store(rgba); |
| fSteps->apply(rgba); |
| dst = Sk4f_toL32(swizzle_rb(Sk4f::Load(rgba))); |
| } break; |
| |
| case Mode::xformer: { |
| dst = fXformer->apply(src); |
| } break; |
| } |
| |
| if (false && i == 0) { |
| SkDebugf("%x ~~> %x\n", src, dst); |
| } |
| |
| junk ^= dst; |
| } |
| } |
| }; |
| |
| DEF_BENCH(return new ColorSpaceXformBench{Mode::steps };) |
| DEF_BENCH(return new ColorSpaceXformBench{Mode::xformer};) |