1 // Copyright 2017 PDFium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com 6 7 #ifndef CORE_FXCODEC_CODEC_ICODEC_BMPMODULE_H_ 8 #define CORE_FXCODEC_CODEC_ICODEC_BMPMODULE_H_ 9 10 #include "core/fxcrt/fx_system.h" 11 12 struct FXBMP_Context; 13 class CFX_DIBAttribute; 14 15 // Virtual interface to avoid linking in a concrete implementation 16 // if we do not enable this codec. 17 class ICodec_BmpModule { 18 public: 19 class Delegate { 20 public: 21 virtual bool BmpInputImagePositionBuf(uint32_t rcd_pos) = 0; 22 virtual void BmpReadScanline(int32_t row_num, uint8_t* row_buf) = 0; 23 }; 24 25 virtual ~ICodec_BmpModule() {} 26 27 virtual FXBMP_Context* Start() = 0; 28 virtual void Finish(FXBMP_Context* pContext) = 0; 29 virtual uint32_t GetAvailInput(FXBMP_Context* pContext, 30 uint8_t** avail_buf_ptr) = 0; 31 virtual void Input(FXBMP_Context* pContext, 32 const uint8_t* src_buf, 33 uint32_t src_size) = 0; 34 virtual int32_t ReadHeader(FXBMP_Context* pContext, 35 int32_t* width, 36 int32_t* height, 37 bool* tb_flag, 38 int32_t* components, 39 int32_t* pal_num, 40 uint32_t** pal_pp, 41 CFX_DIBAttribute* pAttribute) = 0; 42 virtual int32_t LoadImage(FXBMP_Context* pContext) = 0; 43 44 Delegate* GetDelegate() const { return m_pDelegate; } 45 void SetDelegate(Delegate* pDelegate) { m_pDelegate = pDelegate; } 46 47 protected: 48 Delegate* m_pDelegate; 49 }; 50 51 #endif // CORE_FXCODEC_CODEC_ICODEC_BMPMODULE_H_ 52
