| // Copyright 2016 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_PARSER_FPDF_PARSER_DECODE_H_ |
| #define CORE_FPDFAPI_PARSER_FPDF_PARSER_DECODE_H_ |
| |
| #include <memory> |
| |
| #include "core/fxcrt/fx_basic.h" |
| |
| class CCodec_ScanlineDecoder; |
| class CPDF_Dictionary; |
| |
| // Indexed by 8-bit char code, contains unicode code points. |
| extern const uint16_t PDFDocEncoding[256]; |
| |
| CFX_ByteString PDF_NameDecode(const CFX_ByteStringC& orig); |
| CFX_ByteString PDF_NameDecode(const CFX_ByteString& orig); |
| CFX_ByteString PDF_NameEncode(const CFX_ByteString& orig); |
| CFX_ByteString PDF_EncodeString(const CFX_ByteString& src, bool bHex = false); |
| CFX_WideString PDF_DecodeText(const uint8_t* pData, uint32_t size); |
| CFX_WideString PDF_DecodeText(const CFX_ByteString& bstr); |
| CFX_ByteString PDF_EncodeText(const wchar_t* pString, int len = -1); |
| CFX_ByteString PDF_EncodeText(const CFX_WideString& str); |
| |
| bool FlateEncode(const uint8_t* src_buf, |
| uint32_t src_size, |
| uint8_t** dest_buf, |
| uint32_t* dest_size); |
| |
| // This used to have more parameters like the predictor and bpc, but there was |
| // only one caller, so the interface has been simplified, the values are hard |
| // coded, and dead code has been removed. |
| bool PngEncode(const uint8_t* src_buf, |
| uint32_t src_size, |
| uint8_t** dest_buf, |
| uint32_t* dest_size); |
| |
| uint32_t FlateDecode(const uint8_t* src_buf, |
| uint32_t src_size, |
| uint8_t*& dest_buf, |
| uint32_t& dest_size); |
| uint32_t RunLengthDecode(const uint8_t* src_buf, |
| uint32_t src_size, |
| uint8_t*& dest_buf, |
| uint32_t& dest_size); |
| |
| std::unique_ptr<CCodec_ScanlineDecoder> FPDFAPI_CreateFaxDecoder( |
| const uint8_t* src_buf, |
| uint32_t src_size, |
| int width, |
| int height, |
| const CPDF_Dictionary* pParams); |
| |
| std::unique_ptr<CCodec_ScanlineDecoder> FPDFAPI_CreateFlateDecoder( |
| const uint8_t* src_buf, |
| uint32_t src_size, |
| int width, |
| int height, |
| int nComps, |
| int bpc, |
| const CPDF_Dictionary* pParams); |
| |
| // Public for testing. |
| uint32_t A85Decode(const uint8_t* src_buf, |
| uint32_t src_size, |
| uint8_t*& dest_buf, |
| uint32_t& dest_size); |
| // Public for testing. |
| uint32_t HexDecode(const uint8_t* src_buf, |
| uint32_t src_size, |
| uint8_t*& dest_buf, |
| uint32_t& dest_size); |
| // Public for testing. |
| uint32_t FPDFAPI_FlateOrLZWDecode(bool bLZW, |
| const uint8_t* src_buf, |
| uint32_t src_size, |
| CPDF_Dictionary* pParams, |
| uint32_t estimated_size, |
| uint8_t*& dest_buf, |
| uint32_t& dest_size); |
| bool PDF_DataDecode(const uint8_t* src_buf, |
| uint32_t src_size, |
| const CPDF_Dictionary* pDict, |
| uint8_t*& dest_buf, |
| uint32_t& dest_size, |
| CFX_ByteString& ImageEncoding, |
| CPDF_Dictionary*& pImageParms, |
| uint32_t estimated_size, |
| bool bImageAcc); |
| |
| #endif // CORE_FPDFAPI_PARSER_FPDF_PARSER_DECODE_H_ |