From 5110c4743751145c4ae1934cd1d83bc6c55bb43f Mon Sep 17 00:00:00 2001 From: John Abd-El-Malek Date: Sat, 17 May 2014 22:33:34 -0700 Subject: Initial commit. --- core/src/fxcodec/codec/fx_codec_jbig.cpp | 212 +++++++++++++++++++++++++++++++ 1 file changed, 212 insertions(+) create mode 100644 core/src/fxcodec/codec/fx_codec_jbig.cpp (limited to 'core/src/fxcodec/codec/fx_codec_jbig.cpp') diff --git a/core/src/fxcodec/codec/fx_codec_jbig.cpp b/core/src/fxcodec/codec/fx_codec_jbig.cpp new file mode 100644 index 0000000000..a644e99c5d --- /dev/null +++ b/core/src/fxcodec/codec/fx_codec_jbig.cpp @@ -0,0 +1,212 @@ +// 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_memset32(this, 0, sizeof(CCodec_Jbig2Context)); +} +CCodec_Jbig2Module::~CCodec_Jbig2Module() +{ +} +void* CCodec_Jbig2Module::CreateJbig2Context() +{ + return FX_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, FX_LPCBYTE src_buf, FX_DWORD src_size, + FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch) +{ + FXSYS_memset32(dest_buf, 0, height * dest_pitch); + CJBig2_Context* pContext = CJBig2_Context::CreateContext(&m_Module, + (FX_LPBYTE)global_data, global_size, (FX_LPBYTE)src_buf, src_size, JBIG2_EMBED_STREAM); + 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, FX_LPBYTE& dest_buf) +{ + CJBig2_Context* pContext = NULL; + CJBig2_Image* dest_image = NULL; + FX_DWORD src_size = (FX_DWORD)file_ptr->GetSize(); + FX_LPBYTE src_buf = FX_Alloc(FX_BYTE, src_size); + if (src_buf == NULL) { + return FALSE; + } + 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); + 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: + if(src_buf) { + FX_Free(src_buf); + } + return FALSE; +} +FXCODEC_STATUS CCodec_Jbig2Module::StartDecode(void* pJbig2Context, FX_DWORD width, FX_DWORD height, FX_LPCBYTE src_buf, FX_DWORD src_size, + FX_LPCBYTE global_data, FX_DWORD global_size, FX_LPBYTE dest_buf, FX_DWORD dest_pitch, IFX_Pause* pPause) +{ + if(!pJbig2Context) { + return FXCODEC_STATUS_ERR_PARAMS; + } + CCodec_Jbig2Context* m_pJbig2Context = (CCodec_Jbig2Context*)pJbig2Context; + m_pJbig2Context->m_width = width; + m_pJbig2Context->m_height = height; + m_pJbig2Context->m_src_buf = (unsigned char *)src_buf; + m_pJbig2Context->m_src_size = src_size; + m_pJbig2Context->m_global_data = global_data; + m_pJbig2Context->m_global_size = global_size; + m_pJbig2Context->m_dest_buf = dest_buf; + m_pJbig2Context->m_dest_pitch = dest_pitch; + m_pJbig2Context->m_pPause = pPause; + m_pJbig2Context->m_bFileReader = FALSE; + FXSYS_memset32(dest_buf, 0, height * dest_pitch); + m_pJbig2Context->m_pContext = CJBig2_Context::CreateContext(&m_Module, + (FX_LPBYTE)global_data, global_size, (FX_LPBYTE)src_buf, src_size, JBIG2_EMBED_STREAM, pPause); + if(!m_pJbig2Context->m_pContext) { + return FXCODEC_STATUS_ERROR; + } + int ret = m_pJbig2Context->m_pContext->getFirstPage(dest_buf, width, height, dest_pitch, pPause); + if(m_pJbig2Context->m_pContext->GetProcessiveStatus() == FXCODEC_STATUS_DECODE_FINISH) { + CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); + m_pJbig2Context->m_pContext = NULL; + if (ret != JBIG2_SUCCESS) { + return FXCODEC_STATUS_ERROR; + } + 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, FX_LPBYTE& 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(FX_BYTE, m_pJbig2Context->m_src_size); + if (m_pJbig2Context->m_src_buf == NULL) { + return FXCODEC_STATUS_ERR_MEMORY; + } + 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, 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: + if(m_pJbig2Context->m_src_buf) { + 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) { + if(m_pJbig2Context->m_bFileReader) { + CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); + m_pJbig2Context->m_pContext = NULL; + if (ret != JBIG2_SUCCESS) { + if(m_pJbig2Context->m_src_buf) { + FX_Free(m_pJbig2Context->m_src_buf); + } + m_pJbig2Context->m_src_buf = NULL; + return FXCODEC_STATUS_ERROR; + } + delete m_pJbig2Context->m_dest_image; + FX_Free(m_pJbig2Context->m_src_buf); + return FXCODEC_STATUS_DECODE_FINISH; + } else { + CJBig2_Context::DestroyContext(m_pJbig2Context->m_pContext); + m_pJbig2Context->m_pContext = NULL; + if (ret != JBIG2_SUCCESS) { + 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; + } + } + return m_pJbig2Context->m_pContext->GetProcessiveStatus(); +} + + + -- cgit v1.2.3