OLD | NEW |
1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #include "../../../include/fxcodec/fx_codec.h" | 7 #include "../../../include/fxcodec/fx_codec.h" |
8 #include "codec_int.h" | 8 #include "codec_int.h" |
9 const FX_BYTE OneLeadPos[256] = { | 9 const FX_BYTE OneLeadPos[256] = { |
10 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, | 10 8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, |
(...skipping 604 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
615 if (m_OrigWidth == 0) { | 615 if (m_OrigWidth == 0) { |
616 m_OrigWidth = width; | 616 m_OrigWidth = width; |
617 } | 617 } |
618 if (m_OrigHeight == 0) { | 618 if (m_OrigHeight == 0) { |
619 m_OrigHeight = height; | 619 m_OrigHeight = height; |
620 } | 620 } |
621 m_Pitch = (m_OrigWidth + 31) / 32 * 4; | 621 m_Pitch = (m_OrigWidth + 31) / 32 * 4; |
622 m_OutputWidth = m_OrigWidth; | 622 m_OutputWidth = m_OrigWidth; |
623 m_OutputHeight = m_OrigHeight; | 623 m_OutputHeight = m_OrigHeight; |
624 m_pScanlineBuf = FX_Alloc(FX_BYTE, m_Pitch); | 624 m_pScanlineBuf = FX_Alloc(FX_BYTE, m_Pitch); |
| 625 if (m_pScanlineBuf == NULL) { |
| 626 return FALSE; |
| 627 } |
625 m_pRefBuf = FX_Alloc(FX_BYTE, m_Pitch); | 628 m_pRefBuf = FX_Alloc(FX_BYTE, m_Pitch); |
| 629 if (m_pRefBuf == NULL) { |
| 630 return FALSE; |
| 631 } |
626 m_pSrcBuf = src_buf; | 632 m_pSrcBuf = src_buf; |
627 m_SrcSize = src_size; | 633 m_SrcSize = src_size; |
628 m_nComps = 1; | 634 m_nComps = 1; |
629 m_bpc = 1; | 635 m_bpc = 1; |
630 m_bColorTransformed = FALSE; | 636 m_bColorTransformed = FALSE; |
631 return TRUE; | 637 return TRUE; |
632 } | 638 } |
633 FX_BOOL CCodec_FaxDecoder::v_Rewind() | 639 FX_BOOL CCodec_FaxDecoder::v_Rewind() |
634 { | 640 { |
635 FXSYS_memset8(m_pRefBuf, 0xff, m_Pitch); | 641 FXSYS_memset8(m_pRefBuf, 0xff, m_Pitch); |
(...skipping 56 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
692 } | 698 } |
693 return ret; | 699 return ret; |
694 } | 700 } |
695 extern "C" { | 701 extern "C" { |
696 void _FaxG4Decode(void*, FX_LPCBYTE src_buf, FX_DWORD src_size, int* pbitpos
, FX_LPBYTE dest_buf, int width, int height, int pitch) | 702 void _FaxG4Decode(void*, FX_LPCBYTE src_buf, FX_DWORD src_size, int* pbitpos
, FX_LPBYTE dest_buf, int width, int height, int pitch) |
697 { | 703 { |
698 if (pitch == 0) { | 704 if (pitch == 0) { |
699 pitch = (width + 7) / 8; | 705 pitch = (width + 7) / 8; |
700 } | 706 } |
701 FX_LPBYTE ref_buf = FX_Alloc(FX_BYTE, pitch); | 707 FX_LPBYTE ref_buf = FX_Alloc(FX_BYTE, pitch); |
| 708 if (ref_buf == NULL) { |
| 709 return; |
| 710 } |
702 FXSYS_memset8(ref_buf, 0xff, pitch); | 711 FXSYS_memset8(ref_buf, 0xff, pitch); |
703 int bitpos = *pbitpos; | 712 int bitpos = *pbitpos; |
704 for (int iRow = 0; iRow < height; iRow ++) { | 713 for (int iRow = 0; iRow < height; iRow ++) { |
705 FX_LPBYTE line_buf = dest_buf + iRow * pitch; | 714 FX_LPBYTE line_buf = dest_buf + iRow * pitch; |
706 FXSYS_memset8(line_buf, 0xff, pitch); | 715 FXSYS_memset8(line_buf, 0xff, pitch); |
707 _FaxG4GetRow(src_buf, src_size << 3, bitpos, line_buf, ref_buf, widt
h); | 716 _FaxG4GetRow(src_buf, src_size << 3, bitpos, line_buf, ref_buf, widt
h); |
708 FXSYS_memcpy32(ref_buf, line_buf, pitch); | 717 FXSYS_memcpy32(ref_buf, line_buf, pitch); |
709 } | 718 } |
710 FX_Free(ref_buf); | 719 FX_Free(ref_buf); |
711 *pbitpos = bitpos; | 720 *pbitpos = bitpos; |
(...skipping 217 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
929 int m_Cols, m_Rows, m_Pitch; | 938 int m_Cols, m_Rows, m_Pitch; |
930 FX_LPCBYTE m_pSrcBuf; | 939 FX_LPCBYTE m_pSrcBuf; |
931 }; | 940 }; |
932 CCodec_FaxEncoder::CCodec_FaxEncoder(FX_LPCBYTE src_buf, int width, int height,
int pitch) | 941 CCodec_FaxEncoder::CCodec_FaxEncoder(FX_LPCBYTE src_buf, int width, int height,
int pitch) |
933 { | 942 { |
934 m_pSrcBuf = src_buf; | 943 m_pSrcBuf = src_buf; |
935 m_Cols = width; | 944 m_Cols = width; |
936 m_Rows = height; | 945 m_Rows = height; |
937 m_Pitch = pitch; | 946 m_Pitch = pitch; |
938 m_pRefLine = FX_Alloc(FX_BYTE, m_Pitch); | 947 m_pRefLine = FX_Alloc(FX_BYTE, m_Pitch); |
| 948 if (m_pRefLine == NULL) { |
| 949 return; |
| 950 } |
939 FXSYS_memset8(m_pRefLine, 0xff, m_Pitch); | 951 FXSYS_memset8(m_pRefLine, 0xff, m_Pitch); |
940 m_pLineBuf = FX_Alloc2D(FX_BYTE, m_Pitch, 8); | 952 m_pLineBuf = FX_Alloc2D(FX_BYTE, m_Pitch, 8); |
941 m_DestBuf.EstimateSize(0, 10240); | 953 m_DestBuf.EstimateSize(0, 10240); |
942 } | 954 } |
943 CCodec_FaxEncoder::~CCodec_FaxEncoder() | 955 CCodec_FaxEncoder::~CCodec_FaxEncoder() |
944 { | 956 { |
945 if (m_pRefLine) { | 957 if (m_pRefLine) { |
946 FX_Free(m_pRefLine); | 958 FX_Free(m_pRefLine); |
947 } | 959 } |
948 if (m_pLineBuf) { | 960 if (m_pLineBuf) { |
(...skipping 27 matching lines...) Expand all Loading... |
976 encoder.Encode(dest_buf, dest_size); | 988 encoder.Encode(dest_buf, dest_size); |
977 return TRUE; | 989 return TRUE; |
978 } | 990 } |
979 ICodec_ScanlineDecoder* CCodec_FaxModule::CreateDecoder(FX_LPCBYTE src_buf, FX_D
WORD src_size, int width, int height, | 991 ICodec_ScanlineDecoder* CCodec_FaxModule::CreateDecoder(FX_LPCBYTE src_buf, FX_D
WORD src_size, int width, int height, |
980 int K, FX_BOOL EndOfLine, FX_BOOL EncodedByteAlign, FX_BOOL BlackIs1, in
t Columns, int Rows) | 992 int K, FX_BOOL EndOfLine, FX_BOOL EncodedByteAlign, FX_BOOL BlackIs1, in
t Columns, int Rows) |
981 { | 993 { |
982 CCodec_FaxDecoder* pDecoder = new CCodec_FaxDecoder; | 994 CCodec_FaxDecoder* pDecoder = new CCodec_FaxDecoder; |
983 pDecoder->Create(src_buf, src_size, width, height, K, EndOfLine, EncodedByte
Align, BlackIs1, Columns, Rows); | 995 pDecoder->Create(src_buf, src_size, width, height, K, EndOfLine, EncodedByte
Align, BlackIs1, Columns, Rows); |
984 return pDecoder; | 996 return pDecoder; |
985 } | 997 } |
OLD | NEW |