| // 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(const CPDF_Object* pObj, |
| std::set<const CPDF_Object*>* pVisited) override; |
| bool v_Call(const 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_ |