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/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkColorSpace_New_DEFINED
#define SkColorSpace_New_DEFINED
#include "SkColorSpace.h"
#include "SkImageInfo.h"
#include "SkRefCnt.h"
class SkRasterPipeline;
class SkColorSpace_New final : public SkColorSpace {
public:
class ICCProfile; // TODO: == SkICC?
struct TransferFn : public SkRefCnt {
virtual ~TransferFn() = default;
// TODO: one day maybe we'd like to not need this call,
// instead using the more active methods below instead.
virtual SkColorSpaceTransferFn parameterize() const = 0;
// Append stages to use this transfer function with SkRasterPipeline-based rendering.
virtual void linearizeDst(SkRasterPipeline*) const = 0;
virtual void linearizeSrc(SkRasterPipeline*) const = 0;
virtual void encodeSrc(SkRasterPipeline*) const = 0;
// TODO: Ganesh hooks.
// May return false even when this is equivalent to TransferFn,
// but must always be equivalent when this returns true. (No false positives.)
// Implemented by default with parameterize().
virtual bool equals(const TransferFn&) const;
// TODO: ???
// Implemented by default with parameterize().
virtual void updateICCProfile(ICCProfile*) const;
static sk_sp<TransferFn> MakeLinear();
static sk_sp<TransferFn> MakeSRGB();
static sk_sp<TransferFn> MakeGamma(float);
};
enum class Blending { Linear, AsEncoded };
SkColorSpace_New(sk_sp<TransferFn>, SkMatrix44 toXYZD50, Blending);
const SkMatrix44& toXYZD50() const { return fToXYZD50; }
const SkMatrix44& fromXYZD50() const { return fFromXYZD50; }
const TransferFn& transferFn() const { return *fTransferFn; }
Blending blending() const { return fBlending; }
// Transfer-function-related overrides.
sk_sp<SkColorSpace> makeLinearGamma() const override;
sk_sp<SkColorSpace> makeSRGBGamma() const override;
SkGammaNamed onGammaNamed() const override;
bool onGammaCloseToSRGB() const override;
bool onGammaIsLinear() const override;
bool onIsNumericalTransferFn(SkColorSpaceTransferFn*) const override;
// Gamut-related overrides.
const SkMatrix44* onFromXYZD50() const override { return &fFromXYZD50; }
const SkMatrix44* onToXYZD50() const override { return &fToXYZD50; }
uint32_t onToXYZD50Hash() const override { return fToXYZD50Hash; }
private:
sk_sp<TransferFn> fTransferFn;
SkMatrix44 fFromXYZD50;
SkMatrix44 fToXYZD50;
uint32_t fToXYZD50Hash;
Blending fBlending;
};
#endif//SkColorSpace_New_DEFINED
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