| // Copyright 2014 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 |
| |
| #include "../../../include/fpdfapi/fpdf_module.h" |
| #include "../../../include/fpdfapi/fpdf_resource.h" |
| #include "../../../include/fxcodec/fx_codec.h" |
| #include "font_int.h" |
| #ifndef _FPDFAPI_MINI_ |
| typedef struct { |
| FXSYS_FILE* m_pFile; |
| int m_nFiles; |
| int m_IndexSize; |
| int m_IndexOffset; |
| } FXFC_PACKAGE; |
| FX_LPVOID FXFC_LoadPackage(FX_LPCSTR name) |
| { |
| FXSYS_FILE* file = FXSYS_fopen(name, (FX_LPCSTR)"rb"); |
| if (file == NULL) { |
| return NULL; |
| } |
| FX_BYTE buf[256]; |
| FXSYS_fread(buf, 1, 20, file); |
| if (*(FX_DWORD*)buf != 0x43465846) { |
| FXSYS_fclose(file); |
| return NULL; |
| } |
| FXFC_PACKAGE* pPackage = FX_Alloc(FXFC_PACKAGE, 1); |
| pPackage->m_pFile = file; |
| pPackage->m_nFiles = *(int*)(buf + 8); |
| pPackage->m_IndexSize = *(int*)(buf + 12); |
| pPackage->m_IndexOffset = *(int*)(buf + 16); |
| return pPackage; |
| } |
| void FXFC_ClosePackage(FX_LPVOID p) |
| { |
| FXFC_PACKAGE* pPackage = (FXFC_PACKAGE*)p; |
| FXSYS_fclose(pPackage->m_pFile); |
| FX_Free(pPackage); |
| } |
| FX_BOOL FXFC_LoadFile(FX_LPVOID p, FX_LPCSTR name, FX_LPBYTE& pBuffer, FX_DWORD& size) |
| { |
| FXFC_PACKAGE* pPackage = (FXFC_PACKAGE*)p; |
| FXSYS_fseek(pPackage->m_pFile, pPackage->m_IndexOffset, FXSYS_SEEK_SET); |
| FX_BYTE buf[128]; |
| for (int i = 0; i < pPackage->m_nFiles; i ++) { |
| FXSYS_fread(buf, pPackage->m_IndexSize, 1, pPackage->m_pFile); |
| if (FXSYS_stricmp((FX_LPCSTR)buf, name) == 0) { |
| FX_DWORD offset = *(FX_DWORD*)&buf[64]; |
| size = *(FX_DWORD*)&buf[68]; |
| pBuffer = FX_Alloc(FX_BYTE, size); |
| FXSYS_fseek(pPackage->m_pFile, offset, FXSYS_SEEK_SET); |
| FXSYS_fread(pBuffer, size, 1, pPackage->m_pFile); |
| if (buf[72]) { |
| FX_DWORD orig_size; |
| FX_LPBYTE comp_buf = pBuffer; |
| CPDF_ModuleMgr::Get()->GetFlateModule()->FlateOrLZWDecode(FALSE, comp_buf, size, FALSE, |
| 0, 0, 0, 0, 0, pBuffer, orig_size); |
| FX_Free(comp_buf); |
| size = orig_size; |
| } |
| return TRUE; |
| } |
| } |
| return FALSE; |
| } |
| FX_BOOL CPDF_FXMP::LoadFile(FX_LPVOID pPackage, FX_LPCSTR fileid) |
| { |
| if (m_pHeader) { |
| FX_Free(m_pHeader); |
| m_pHeader = NULL; |
| } |
| m_pTable = NULL; |
| FX_DWORD size; |
| if (!FXFC_LoadFile(pPackage, fileid, (FX_LPBYTE&)m_pHeader, size)) { |
| return FALSE; |
| } |
| if (FXSYS_memcmp32(m_pHeader, "FXMP", 4)) { |
| return FALSE; |
| } |
| m_pTable = (FX_LPBYTE)m_pHeader + m_pHeader->dwDataOffset; |
| return TRUE; |
| } |
| FX_LPBYTE CPDF_FXMP::GetRecord(FX_DWORD index) |
| { |
| if (m_pTable == NULL) { |
| return NULL; |
| } |
| if ((int)index < (int)m_pHeader->dwStartIndex || index > m_pHeader->dwEndIndex) { |
| return NULL; |
| } |
| return m_pTable + (index - m_pHeader->dwStartIndex) * m_pHeader->dwRecordSize; |
| } |
| #endif |