c857956fad
I hate SkColorSpaceXform, and we think this is going to be faster, especially for single colors. Add this mode of operation to our bench from yesterday. No surprise, it's exactly as fast as pipeA. This may DO the TODO? Change-Id: I1b42b42d7647d85b62cd8397bb8d6f39c4829bcf Reviewed-on: https://skia-review.googlesource.com/145823 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Mike Klein <mtklein@google.com>
125 lines
4.2 KiB
C++
125 lines
4.2 KiB
C++
/*
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* Copyright 2017 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 "../src/jumper/SkJumper.h"
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#include "Benchmark.h"
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#include "SkColor.h"
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#include "SkColorSpaceXform.h"
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#include "SkColorSpaceXformer.h"
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#include "SkColorSpaceXformSteps.h"
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#include "SkMakeUnique.h"
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#include "SkPM4fPriv.h"
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#include "SkRandom.h"
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#include "SkRasterPipeline.h"
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enum class Mode { xform, steps, pipeA, pipeB, xformer };
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struct ColorSpaceXformBench : public Benchmark {
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ColorSpaceXformBench(Mode mode) : fMode(mode) {}
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const Mode fMode;
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std::unique_ptr<SkColorSpaceXform> fXform;
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std::unique_ptr<SkColorSpaceXformSteps> fSteps;
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std::function<void(size_t, size_t, size_t, size_t)> fPipeA;
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SkJumper_MemoryCtx fPipeSrc = {nullptr,0},
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fPipeDst = {nullptr,0};
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SkSTArenaAlloc<1024> fAlloc;
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std::unique_ptr<SkColorSpaceXformer> fXformer;
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const char* onGetName() override {
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switch (fMode) {
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case Mode::xform : return "ColorSpaceXformBench_xform";
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case Mode::steps : return "ColorSpaceXformBench_steps";
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case Mode::pipeA : return "ColorSpaceXformBench_pipeA";
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case Mode::pipeB : return "ColorSpaceXformBench_pipeB";
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case Mode::xformer: return "ColorSpaceXformBench_xformer";
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}
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return "";
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}
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bool isSuitableFor(Backend backend) override { return kNonRendering_Backend == backend; }
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void onDelayedSetup() override {
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sk_sp<SkColorSpace> src = SkColorSpace::MakeSRGB(),
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dst = SkColorSpace::MakeRGB(SkColorSpace::kSRGB_RenderTargetGamma,
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SkColorSpace::kDCIP3_D65_Gamut);
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fXform = SkColorSpaceXform::New(src.get(), dst.get());
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fSteps = skstd::make_unique<SkColorSpaceXformSteps>(src.get(),
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kOpaque_SkAlphaType,
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dst.get());
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SkRasterPipeline p(&fAlloc);
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p.append(SkRasterPipeline::load_bgra, &fPipeSrc);
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fSteps->apply(&p);
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p.append(SkRasterPipeline::store_bgra, &fPipeDst);
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fPipeA = p.compile();
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fXformer = SkColorSpaceXformer::Make(dst); // src is implicitly sRGB, what we want anyway
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}
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void onDraw(int n, SkCanvas* canvas) override {
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volatile SkColor junk = 0;
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SkRandom rand;
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for (int i = 0; i < n; i++) {
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SkColor src = rand.nextU(),
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dst;
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fPipeSrc.pixels = &src;
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fPipeDst.pixels = &dst;
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switch (fMode) {
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case Mode::xform: {
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fXform->apply(SkColorSpaceXform::kBGRA_8888_ColorFormat, &dst,
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SkColorSpaceXform::kBGRA_8888_ColorFormat, &src,
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1, kUnpremul_SkAlphaType);
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} break;
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case Mode::steps: {
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float rgba[4];
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swizzle_rb(Sk4f_fromL32(src)).store(rgba);
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fSteps->apply(rgba);
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dst = Sk4f_toL32(swizzle_rb(Sk4f::Load(rgba)));
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} break;
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case Mode::pipeA: {
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fPipeA(0,0,1,1);
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} break;
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case Mode::pipeB: {
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SkSTArenaAlloc<1024> alloc;
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SkRasterPipeline p(&alloc);
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p.append(SkRasterPipeline::load_bgra, &fPipeSrc);
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fSteps->apply(&p);
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p.append(SkRasterPipeline::store_bgra, &fPipeDst);
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p.run(0,0,1,1);
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} break;
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case Mode::xformer: {
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dst = fXformer->apply(src);
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} break;
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}
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if (false && i == 0) {
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SkDebugf("%x ~~> %x\n", src, dst);
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}
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junk ^= dst;
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}
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}
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};
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DEF_BENCH(return new ColorSpaceXformBench{Mode::xform };)
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DEF_BENCH(return new ColorSpaceXformBench{Mode::steps };)
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DEF_BENCH(return new ColorSpaceXformBench{Mode::pipeA };)
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DEF_BENCH(return new ColorSpaceXformBench{Mode::pipeB };)
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DEF_BENCH(return new ColorSpaceXformBench{Mode::xformer};)
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