skia2/bench/ColorSpaceXformBench.cpp
Mike Klein 8f3d36c97d add dstAT param to xform steps
All the existing calls are ported over, and new tests cover
unpremul output. (Opaque output is an impossible request.)

Change-Id: I744d640763cf74c368d3b3aba4a262c8fd9f7a01
Reviewed-on: https://skia-review.googlesource.com/147100
Commit-Queue: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
2018-08-14 16:26:53 +00:00

124 lines
4.2 KiB
C++

/*
* 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 "../src/jumper/SkJumper.h"
#include "Benchmark.h"
#include "SkColor.h"
#include "SkColorSpaceXform.h"
#include "SkColorSpaceXformer.h"
#include "SkColorSpaceXformSteps.h"
#include "SkMakeUnique.h"
#include "SkPM4fPriv.h"
#include "SkRandom.h"
#include "SkRasterPipeline.h"
enum class Mode { xform, steps, pipeA, pipeB, xformer };
struct ColorSpaceXformBench : public Benchmark {
ColorSpaceXformBench(Mode mode) : fMode(mode) {}
const Mode fMode;
std::unique_ptr<SkColorSpaceXform> fXform;
std::unique_ptr<SkColorSpaceXformSteps> fSteps;
std::function<void(size_t, size_t, size_t, size_t)> fPipeA;
SkJumper_MemoryCtx fPipeSrc = {nullptr,0},
fPipeDst = {nullptr,0};
SkSTArenaAlloc<1024> fAlloc;
std::unique_ptr<SkColorSpaceXformer> fXformer;
const char* onGetName() override {
switch (fMode) {
case Mode::xform : return "ColorSpaceXformBench_xform";
case Mode::steps : return "ColorSpaceXformBench_steps";
case Mode::pipeA : return "ColorSpaceXformBench_pipeA";
case Mode::pipeB : return "ColorSpaceXformBench_pipeB";
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);
fXform = SkColorSpaceXform::New(src.get(), dst.get());
fSteps = skstd::make_unique<SkColorSpaceXformSteps>(src.get(), kOpaque_SkAlphaType,
dst.get(), kPremul_SkAlphaType);
SkRasterPipeline p(&fAlloc);
p.append(SkRasterPipeline::load_bgra, &fPipeSrc);
fSteps->apply(&p);
p.append(SkRasterPipeline::store_bgra, &fPipeDst);
fPipeA = p.compile();
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;
fPipeSrc.pixels = &src;
fPipeDst.pixels = &dst;
switch (fMode) {
case Mode::xform: {
fXform->apply(SkColorSpaceXform::kBGRA_8888_ColorFormat, &dst,
SkColorSpaceXform::kBGRA_8888_ColorFormat, &src,
1, kUnpremul_SkAlphaType);
} break;
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::pipeA: {
fPipeA(0,0,1,1);
} break;
case Mode::pipeB: {
SkSTArenaAlloc<1024> alloc;
SkRasterPipeline p(&alloc);
p.append(SkRasterPipeline::load_bgra, &fPipeSrc);
fSteps->apply(&p);
p.append(SkRasterPipeline::store_bgra, &fPipeDst);
p.run(0,0,1,1);
} 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::xform };)
DEF_BENCH(return new ColorSpaceXformBench{Mode::steps };)
DEF_BENCH(return new ColorSpaceXformBench{Mode::pipeA };)
DEF_BENCH(return new ColorSpaceXformBench{Mode::pipeB };)
DEF_BENCH(return new ColorSpaceXformBench{Mode::xformer};)