82ebe04caf
Moved named common transfer functions and gamuts to constexpr values in SkColorSpace.h, in SkNamedTransferFn and SkNamedGamut namespaces. Converted nearly all SkColorSpace::MakeRGB calls within Skia to use the new factory with the named values. Multiple clients want a way to extract named transfer function and gamut - this still doesn't provide that, but this may be a better path forward for honestly advertising how SkColorSpace works internally. Originally landed as: https://skia.googlesource.com/skia/+/a9549ab31630fc244094e6f1692371cbaf87f666 Re-landing with a new serialization format, but maintaining ability to load old serialized color spaces, for SKP compatibility. Bug: skia: Change-Id: Ib84a6e1cd5d7d9816175773fdbaff2ca32658667 Reviewed-on: https://skia-review.googlesource.com/c/181176 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
75 lines
2.3 KiB
C++
75 lines
2.3 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 "Benchmark.h"
|
|
#include "SkColor.h"
|
|
#include "SkColorSpaceXformer.h"
|
|
#include "SkColorSpaceXformSteps.h"
|
|
#include "SkMakeUnique.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(SkNamedTransferFn::kSRGB,
|
|
SkNamedGamut::kDCIP3);
|
|
|
|
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: {
|
|
SkColor4f rgba = SkColor4f::FromColor(src);
|
|
fSteps->apply(rgba.vec());
|
|
dst = rgba.toSkColor();
|
|
} 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};)
|