Remove dead JBig2 code.

core/src/fxcodec/codec/fx_codec_jbig.cpp

 // 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/fxcodec/fx_codec.h"
 #include "codec_int.h"
 
 CCodec_Jbig2Context::CCodec_Jbig2Context() {
   FXSYS_memset(this, 0, sizeof(CCodec_Jbig2Context));
 }
 CCodec_Jbig2Module::~CCodec_Jbig2Module() {}
 void* CCodec_Jbig2Module::CreateJbig2Context() {
   return new CCodec_Jbig2Context();
 }
 void CCodec_Jbig2Module::DestroyJbig2Context(void* pJbig2Content) {
   if (pJbig2Content) {
     CJBig2_Context::DestroyContext(
         ((CCodec_Jbig2Context*)pJbig2Content)->m_pContext);
     delete (CCodec_Jbig2Context*)pJbig2Content;
   }
   pJbig2Content = NULL;
 }
-FX_BOOL CCodec_Jbig2Module::Decode(FX_DWORD width,
-                                   FX_DWORD height,
-                                   const uint8_t* src_buf,
-                                   FX_DWORD src_size,
-                                   const uint8_t* global_data,
-                                   FX_DWORD global_size,
-                                   uint8_t* dest_buf,
-                                   FX_DWORD dest_pitch) {
-  FXSYS_memset(dest_buf, 0, height * dest_pitch);
-  CJBig2_Context* pContext = CJBig2_Context::CreateContext(
-      &m_Module, (uint8_t*)global_data, global_size, (uint8_t*)src_buf,
-      src_size, JBIG2_EMBED_STREAM, &m_SymbolDictCache);
-  if (pContext == NULL) {
-    return FALSE;
-  }
-  int ret = pContext->getFirstPage(dest_buf, width, height, dest_pitch, NULL);
-  CJBig2_Context::DestroyContext(pContext);
-  if (ret != JBIG2_SUCCESS) {
-    return FALSE;
-  }
-  int dword_size = height * dest_pitch / 4;
-  FX_DWORD* dword_buf = (FX_DWORD*)dest_buf;
-  for (int i = 0; i < dword_size; i++) {
-    dword_buf[i] = ~dword_buf[i];
-  }
-  return TRUE;
-}
-FX_BOOL CCodec_Jbig2Module::Decode(IFX_FileRead* file_ptr,
-                                   FX_DWORD& width,
-                                   FX_DWORD& height,
-                                   FX_DWORD& pitch,
-                                   uint8_t*& dest_buf) {
-  CJBig2_Context* pContext = NULL;
-  CJBig2_Image* dest_image = NULL;
-  FX_DWORD src_size = (FX_DWORD)file_ptr->GetSize();
-  uint8_t* src_buf = FX_Alloc(uint8_t, src_size);
-  int ret = 0;
-  if (!file_ptr->ReadBlock(src_buf, 0, src_size)) {
-    goto failed;
-  }
-  pContext =
-      CJBig2_Context::CreateContext(&m_Module, NULL, 0, src_buf, src_size,
-                                    JBIG2_FILE_STREAM, &m_SymbolDictCache);
-  if (pContext == NULL) {
-    goto failed;
-  }
-  ret = pContext->getFirstPage(&dest_image, NULL);
-  CJBig2_Context::DestroyContext(pContext);
-  if (ret != JBIG2_SUCCESS) {
-    goto failed;
-  }
-  width = (FX_DWORD)dest_image->m_nWidth;
-  height = (FX_DWORD)dest_image->m_nHeight;
-  pitch = (FX_DWORD)dest_image->m_nStride;
-  dest_buf = dest_image->m_pData;
-  dest_image->m_bNeedFree = FALSE;
-  delete dest_image;
-  FX_Free(src_buf);
-  return TRUE;
-failed:
-  FX_Free(src_buf);
-  return FALSE;
-}
 FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context,
                                                FX_DWORD width,
                                                FX_DWORD height,
                                                const uint8_t* src_buf,
                                                FX_DWORD src_size,
                                                const uint8_t* global_data,
                                                FX_DWORD global_size,
                                                uint8_t* dest_buf,
                                                FX_DWORD dest_pitch,
                                                IFX_Pause* pPause) {
@@ skipping 29 matching lines @@
     }
     int dword_size = height * dest_pitch / 4;
     FX_DWORD* dword_buf = (FX_DWORD*)dest_buf;
     for (int i = 0; i < dword_size; i++) {
       dword_buf[i] = ~dword_buf[i];
     }
     return FXCODEC_STATUS_DECODE_FINISH;
   }
   return m_pJbig2Context->m_pContext->GetProcessiveStatus();
 }
-FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context,
-                                               IFX_FileRead* file_ptr,
-                                               FX_DWORD& width,
-                                               FX_DWORD& height,
-                                               FX_DWORD& pitch,
-                                               uint8_t*& dest_buf,
-                                               IFX_Pause* pPause) {
-  if (!pJbig2Context) {
-    return FXCODEC_STATUS_ERR_PARAMS;
-  }
-  CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context;
-  m_pJbig2Context->m_bFileReader = TRUE;
-  m_pJbig2Context->m_dest_image = NULL;
-  m_pJbig2Context->m_src_size = (FX_DWORD)file_ptr->GetSize();
-  m_pJbig2Context->m_src_buf = FX_Alloc(uint8_t, m_pJbig2Context->m_src_size);
-  int ret = 0;
-  if (!file_ptr->ReadBlock((void*)m_pJbig2Context->m_src_buf, 0,
-                           m_pJbig2Context->m_src_size)) {
-    goto failed;
-  }
-  m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext(
-      &m_Module, NULL, 0, m_pJbig2Context->m_src_buf,
-      m_pJbig2Context->m_src_size, JBIG2_FILE_STREAM, &m_SymbolDictCache,
-      pPause);
-  if (m_pJbig2Context->m_pContext == NULL) {
-    goto failed;
-  }
-  ret = m_pJbig2Context->m_pContext->getFirstPage(
-      &m_pJbig2Context->m_dest_image, pPause);
-  if (m_pJbig2Context->m_pContext->GetProcessiveStatus() ==
-      FXCODEC_STATUS_DECODE_TOBECONTINUE) {
-    width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth;
-    height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight;
-    pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride;
-    dest_buf = m_pJbig2Context->m_dest_image->m_pData;
-    m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE;
-    return FXCODEC_STATUS_DECODE_TOBECONTINUE;
-  }
-  CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
-  m_pJbig2Context->m_pContext = NULL;
-  if (ret != JBIG2_SUCCESS) {
-    goto failed;
-  }
-  width = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nWidth;
-  height = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nHeight;
-  pitch = (FX_DWORD)m_pJbig2Context->m_dest_image->m_nStride;
-  dest_buf = m_pJbig2Context->m_dest_image->m_pData;
-  m_pJbig2Context->m_dest_image->m_bNeedFree = FALSE;
-  delete m_pJbig2Context->m_dest_image;
-  FX_Free(m_pJbig2Context->m_src_buf);
-  return FXCODEC_STATUS_DECODE_FINISH;
-failed:
-  FX_Free(m_pJbig2Context->m_src_buf);
-  m_pJbig2Context->m_src_buf = NULL;
-  return FXCODEC_STATUS_ERROR;
-}
 FXCODEC_STATUS CCodec_Jbig2Module::ContinueDecode(void* pJbig2Context,
                                                   IFX_Pause* pPause) {
   CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context;
   int ret = m_pJbig2Context->m_pContext->Continue(pPause);
   if (m_pJbig2Context->m_pContext->GetProcessiveStatus() !=
       FXCODEC_STATUS_DECODE_FINISH) {
     return m_pJbig2Context->m_pContext->GetProcessiveStatus();
   }
   if (m_pJbig2Context->m_bFileReader) {
     CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext);
@@ skipping 13 matching lines @@
     return FXCODEC_STATUS_ERROR;
   }
   int dword_size =
       m_pJbig2Context->m_height * m_pJbig2Context->m_dest_pitch / 4;
   FX_DWORD* dword_buf = (FX_DWORD*)m_pJbig2Context->m_dest_buf;
   for (int i = 0; i < dword_size; i++) {
     dword_buf[i] = ~dword_buf[i];
   }
   return FXCODEC_STATUS_DECODE_FINISH;
 }