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// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef CORE_FPDFAPI_PAGE_CPDF_SAMPLEDFUNC_H_
#define CORE_FPDFAPI_PAGE_CPDF_SAMPLEDFUNC_H_
#include <set>
#include <vector>
#include "core/fpdfapi/page/cpdf_function.h"
#include "core/fpdfapi/parser/cpdf_stream_acc.h"
#include "core/fxcrt/retain_ptr.h"
class CPDF_SampledFunc : public CPDF_Function {
public:
struct SampleEncodeInfo {
float encode_max;
float encode_min;
uint32_t sizes;
};
struct SampleDecodeInfo {
float decode_max;
float decode_min;
};
CPDF_SampledFunc();
~CPDF_SampledFunc() override;
// CPDF_Function
bool v_Init(CPDF_Object* pObj, std::set<CPDF_Object*>* pVisited) override;
bool v_Call(float* inputs, float* results) const override;
const std::vector<SampleEncodeInfo>& GetEncodeInfo() const {
return m_EncodeInfo;
}
uint32_t GetBitsPerSample() const { return m_nBitsPerSample; }
RetainPtr<CPDF_StreamAcc> GetSampleStream() const { return m_pSampleStream; }
private:
std::vector<SampleEncodeInfo> m_EncodeInfo;
std::vector<SampleDecodeInfo> m_DecodeInfo;
uint32_t m_nBitsPerSample;
uint32_t m_SampleMax;
RetainPtr<CPDF_StreamAcc> m_pSampleStream;
};
#endif // CORE_FPDFAPI_PAGE_CPDF_SAMPLEDFUNC_H_
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