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/*
* Copyright 2016 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkColorLookUpTable_DEFINED
#define SkColorLookUpTable_DEFINED
#include "SkRefCnt.h"
#include "SkTemplates.h"
class SkColorLookUpTable : public SkRefCnt {
public:
static constexpr uint8_t kOutputChannels = 3;
SkColorLookUpTable(uint8_t inputChannels, const uint8_t gridPoints[3]) {
SkASSERT(3 == inputChannels);
memcpy(fGridPoints, gridPoints, 3 * sizeof(uint8_t));
}
void interp3D(float dst[3], float src[3]) const;
private:
const float* table() const {
return SkTAddOffset<const float>(this, sizeof(SkColorLookUpTable));
}
uint8_t fGridPoints[3];
public:
// Objects of this type are created in a custom fashion using sk_malloc_throw
// and therefore must be sk_freed.
void* operator new(size_t size) = delete;
void* operator new(size_t, void* p) { return p; }
void operator delete(void* p) { sk_free(p); }
};
#endif
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