summaryrefslogtreecommitdiff
path: root/svtools/source/filter.vcl/ixpm/xpmread.cxx
diff options
context:
space:
mode:
Diffstat (limited to 'svtools/source/filter.vcl/ixpm/xpmread.cxx')
-rw-r--r--svtools/source/filter.vcl/ixpm/xpmread.cxx702
1 files changed, 702 insertions, 0 deletions
diff --git a/svtools/source/filter.vcl/ixpm/xpmread.cxx b/svtools/source/filter.vcl/ixpm/xpmread.cxx
new file mode 100644
index 000000000000..7575c94e3ed9
--- /dev/null
+++ b/svtools/source/filter.vcl/ixpm/xpmread.cxx
@@ -0,0 +1,702 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org. If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+// MARKER(update_precomp.py): autogen include statement, do not remove
+#include "precompiled_svtools.hxx"
+
+#ifndef _BMPACC_HXX
+#include <vcl/bmpacc.hxx>
+#endif
+#ifndef _GRAPH_HXX
+#include <vcl/graph.hxx>
+#endif
+#include "rgbtable.hxx"
+#define _XPMPRIVATE
+#include "xpmread.hxx"
+
+// -------------
+// - XPMReader -
+// -------------
+
+XPMReader::XPMReader( SvStream& rStm ) :
+ mrIStm ( rStm ),
+ mpAcc ( NULL ),
+ mpMaskAcc ( NULL ),
+ mnLastPos ( rStm.Tell() ),
+ mnWidth ( 0 ),
+ mnHeight ( 0 ),
+ mnColors ( 0 ),
+ mnCpp ( 0 ),
+ mbTransparent ( FALSE ),
+ mbStatus ( TRUE ),
+ mnStatus ( 0 ),
+ mnIdentifier ( XPMIDENTIFIER ),
+ mcThisByte ( 0 ),
+ mnTempAvail ( 0 ),
+ mpFastColorTable( NULL ),
+ mpColMap ( NULL )
+{
+
+}
+
+// ------------------------------------------------------------------------
+
+XPMReader::~XPMReader()
+{
+ if( mpAcc )
+ maBmp.ReleaseAccess( mpAcc );
+}
+
+// ------------------------------------------------------------------------
+
+#ifdef _MSC_VER
+#pragma optimize ("",off)
+#endif
+
+ReadState XPMReader::ReadXPM( Graphic& rGraphic )
+{
+ ReadState eReadState;
+ BYTE cDummy;
+
+ // sehen, ob wir _alles_ lesen koennen
+ mrIStm.Seek( STREAM_SEEK_TO_END );
+ mrIStm >> cDummy;
+
+ // falls wir nicht alles lesen koennen
+ // kehren wir zurueck und warten auf neue Daten
+ if ( mrIStm.GetError() != ERRCODE_IO_PENDING )
+ {
+ mrIStm.Seek( mnLastPos );
+ mbStatus = TRUE;
+
+ if ( mbStatus )
+ {
+ mpStringBuf = new BYTE [ XPMSTRINGBUF ];
+ mpTempBuf = new BYTE [ XPMTEMPBUFSIZE ];
+
+ if ( ( mbStatus = ImplGetString() ) == TRUE )
+ {
+ mnIdentifier = XPMVALUES; // Bitmap informationen einholen
+ mnWidth = ImplGetULONG( 0 );
+ mnHeight = ImplGetULONG( 1 );
+ mnColors = ImplGetULONG( 2 );
+ mnCpp = ImplGetULONG( 3 );
+ }
+ if ( mnColors > ( SAL_MAX_UINT32 / ( 4 + mnCpp ) ) )
+ mbStatus = sal_False;
+ if ( ( mnWidth * mnCpp ) >= XPMSTRINGBUF )
+ mbStatus = sal_False;
+ if ( mbStatus && mnWidth && mnHeight && mnColors && mnCpp )
+ {
+ mnIdentifier = XPMCOLORS;
+
+ // mpColMap beinhaltet fuer jede vorhandene
+ // Farbe: ( mnCpp )Byte(s)-> ASCII Eintrag der der Farbe zugeordnet ist
+ // 1 Byte -> 0xff wenn Farbe transparent ist
+ // 3 Bytes -> RGB Wert der Farbe
+ mpColMap = new BYTE[ mnColors * ( 4 + mnCpp ) ];
+ if ( mpColMap )
+ {
+ for ( ULONG i = 0; i < mnColors; i++ )
+ {
+ if ( ImplGetColor( i ) == FALSE )
+ {
+ mbStatus = FALSE;
+ break;
+ }
+ }
+ }
+ else
+ mbStatus = sal_False;
+
+ if ( mbStatus )
+ {
+ // bei mehr als 256 Farben wird eine 24 Bit Grafik erstellt
+ sal_uInt16 nBits = 1;
+ if ( mnColors > 256 )
+ nBits = 24;
+ else if ( mnColors > 16 )
+ nBits = 8;
+ else if ( mnColors > 2 )
+ nBits = 4;
+ else
+ nBits = 1;
+
+ maBmp = Bitmap( Size( mnWidth, mnHeight ), nBits );
+ mpAcc = maBmp.AcquireWriteAccess();
+
+ // mbTransparent ist TRUE wenn mindestens eine Farbe Transparent ist
+ if ( mbTransparent )
+ {
+ maMaskBmp = Bitmap( Size( mnWidth, mnHeight ), 1 );
+ if ( ( mpMaskAcc = maMaskBmp.AcquireWriteAccess() ) == NULL )
+ mbStatus = FALSE;
+ }
+ if( mpAcc && mbStatus )
+ {
+ ULONG i;
+ if ( mnColors <=256 ) // palette is only needed by using less than 257
+ { // colors
+
+ BYTE* pPtr = &mpColMap[mnCpp];
+
+ for ( i = 0; i < mnColors; i++ )
+ {
+ mpAcc->SetPaletteColor( (BYTE)i, Color( pPtr[1], pPtr[2], pPtr[3] ) );
+ pPtr += ( mnCpp + 4 );
+ }
+ // using 2 charakters per pixel and less than 257 Colors we speed up
+ if ( mnCpp == 2 ) // by using a 64kb indexing table
+ {
+ mpFastColorTable = new BYTE[ 256 * 256 ];
+ for ( pPtr = mpColMap, i = 0; i < mnColors; i++, pPtr += mnCpp + 4 )
+ {
+ ULONG j = pPtr[ 0 ] << 8;
+ j += pPtr[ 1 ];
+ mpFastColorTable[ j ] = (BYTE)i;
+ }
+ }
+ }
+ // now we get the bitmap data
+ mnIdentifier = XPMPIXELS;
+ for ( i = 0; i < mnHeight; i++ )
+ {
+ if ( ImplGetScanLine( i ) == FALSE )
+ {
+ mbStatus = FALSE;
+ break;
+ }
+ }
+ mnIdentifier = XPMEXTENSIONS;
+ }
+ }
+ }
+
+ delete[] mpFastColorTable;
+ delete[] mpColMap;
+ delete[] mpStringBuf;
+ delete[] mpTempBuf;
+
+ }
+ if( mbStatus )
+ {
+ if ( mpMaskAcc )
+ {
+ maMaskBmp.ReleaseAccess ( mpMaskAcc), mpMaskAcc = NULL;
+ maBmp.ReleaseAccess( mpAcc ), mpAcc = NULL;
+ rGraphic = Graphic( BitmapEx( maBmp, maMaskBmp ) );
+ }
+ else
+ {
+ maBmp.ReleaseAccess( mpAcc ), mpAcc = NULL;
+ rGraphic = maBmp;
+ }
+ eReadState = XPMREAD_OK;
+ }
+ else
+ {
+ if ( mpMaskAcc ) maMaskBmp.ReleaseAccess ( mpMaskAcc), mpMaskAcc = NULL;
+ if ( mpAcc ) maBmp.ReleaseAccess( mpAcc ), mpAcc = NULL;
+ eReadState = XPMREAD_ERROR;
+ }
+ }
+ else
+ {
+ mrIStm.ResetError();
+ eReadState = XPMREAD_NEED_MORE;
+ }
+ return eReadState;
+}
+
+#ifdef _MSC_VER
+#pragma optimize ("",on)
+#endif
+
+// ------------------------------------------------------------------------
+// ImplGetColor ermittelt saemtliche Farbwerte,
+// die Rueckgabe ist TRUE wenn saemtliche Farben zugeordnet werden konnten
+
+BOOL XPMReader::ImplGetColor( ULONG nNumb )
+{
+ BYTE* pString = mpStringBuf;
+ BYTE* pPtr = ( mpColMap + nNumb * ( 4 + mnCpp ) );
+ BOOL bStatus = ImplGetString();
+
+ if ( bStatus )
+ {
+ for ( ULONG i = 0; i < mnCpp; i++ )
+ *pPtr++ = *pString++;
+ bStatus = ImplGetColSub ( pPtr );
+ }
+ return bStatus;
+}
+
+// ------------------------------------------------------------------------
+// ImpGetScanLine liest den String mpBufSize aus und schreibt die Pixel in die
+// Bitmap. Der Parameter nY gibt die horizontale Position an.
+
+BOOL XPMReader::ImplGetScanLine( ULONG nY )
+{
+ BOOL bStatus = ImplGetString();
+ BYTE* pString = mpStringBuf;
+ BYTE* pColor;
+ BitmapColor aWhite;
+ BitmapColor aBlack;
+
+ if ( bStatus )
+ {
+ if ( mpMaskAcc )
+ {
+ aWhite = mpMaskAcc->GetBestMatchingColor( Color( COL_WHITE ) );
+ aBlack = mpMaskAcc->GetBestMatchingColor( Color( COL_BLACK ) );
+ }
+ if ( mnStringSize != ( mnWidth * mnCpp ))
+ bStatus = FALSE;
+ else
+ {
+ ULONG i, j;
+ if ( mpFastColorTable )
+ {
+ for ( i = 0; i < mnWidth; i++ )
+ {
+ j = (*pString++) << 8;
+ j += *pString++;
+ BYTE k = (BYTE)mpFastColorTable[ j ];
+ mpAcc->SetPixel( nY, i, BitmapColor( (BYTE)k ) );
+
+ if ( mpMaskAcc )
+ mpMaskAcc->SetPixel( nY, i,
+ ( mpColMap[ k * (mnCpp + 4) + mnCpp] ) ? aWhite : aBlack );
+ }
+ }
+ else for ( i = 0; i < mnWidth; i++ )
+ {
+ pColor = mpColMap;
+ for ( j = 0; j < mnColors; j++ )
+ {
+ if ( ImplCompare( pString, pColor, mnCpp, XPMCASESENSITIVE ) == TRUE )
+ {
+ if ( mnColors > 256 )
+ mpAcc->SetPixel( nY, i, Color ( pColor[3], pColor[4], pColor[5] ) );
+ else
+ mpAcc->SetPixel( nY, i, BitmapColor( (BYTE) j ) );
+
+ if ( mpMaskAcc )
+ mpMaskAcc->SetPixel( nY, i, (
+ pColor[ mnCpp ] ) ? aWhite : aBlack );
+
+ break;
+ }
+ pColor += ( mnCpp + 4 );
+ }
+ pString += mnCpp;
+ }
+
+ }
+ }
+ return bStatus;
+}
+
+// ------------------------------------------------------------------------
+// versucht aus mpStringBuf einen Farbwert zu uebermitteln
+// wurde eine Farbe gefunden wird an pDest[1]..pDest[2] der RGB wert geschrieben
+// pDest[0] enthaelt 0xff wenn die Farbe transparent ist sonst 0
+
+BOOL XPMReader::ImplGetColSub( BYTE* pDest )
+{
+ unsigned char cTransparent[] = "None";
+
+ BOOL bColStatus = FALSE;
+
+ if ( ImplGetColKey( 'c' ) || ImplGetColKey( 'm' ) || ImplGetColKey( 'g' ) )
+ {
+ // hexentry for RGB or HSV color ?
+ if ( *mpPara == '#' )
+ {
+ *pDest++ = 0;
+ bColStatus = TRUE;
+ switch ( mnParaSize )
+ {
+ case 25 :
+ ImplGetRGBHex ( pDest, 6 );
+ break;
+ case 13 :
+ ImplGetRGBHex ( pDest, 2 );
+ break;
+ case 7 :
+ ImplGetRGBHex ( pDest, 0 );
+ break;
+ default:
+ bColStatus = FALSE;
+ break;
+ }
+ }
+ // maybe pixel is transparent
+ else if ( ImplCompare( &cTransparent[0], mpPara, 4 ))
+ {
+ *pDest++ = 0xff;
+ bColStatus = TRUE;
+ mbTransparent = TRUE;
+ }
+ // last we will try to get the colorname
+ else if ( mnParaSize > 2 ) // name must enlarge the minimum size
+ {
+ ULONG i = 0;
+ while ( TRUE )
+ {
+ if ( pRGBTable[ i ].name == NULL )
+ break;
+ if ( pRGBTable[ i ].name[ mnParaSize ] == 0 )
+ {
+ if ( ImplCompare ( (unsigned char*)pRGBTable[ i ].name,
+ mpPara, mnParaSize, XPMCASENONSENSITIVE ) )
+ {
+ bColStatus = TRUE;
+ *pDest++ = 0;
+ *pDest++ = pRGBTable[ i ].red;
+ *pDest++ = pRGBTable[ i ].green;
+ *pDest++ = pRGBTable[ i ].blue;
+ }
+ }
+ i++;
+ }
+ }
+ }
+ return bColStatus;
+}
+
+// ------------------------------------------------------------------------
+// ImplGetColKey durchsuch den String mpStringBuf nach einem Parameter 'nKey'
+// und gibt einen BOOL zurueck. ( wenn TRUE werden mpPara und mnParaSize gesetzt )
+
+BOOL XPMReader::ImplGetColKey( BYTE nKey )
+{
+ BYTE nTemp, nPrev = ' ';
+
+ mpPara = mpStringBuf + mnCpp + 1;
+ mnParaSize = 0;
+
+ while ( *mpPara != 0 )
+ {
+ if ( *mpPara == nKey )
+ {
+ nTemp = *( mpPara + 1 );
+ if ( nTemp == ' ' || nTemp == 0x09 )
+ {
+ if ( nPrev == ' ' || nPrev == 0x09 )
+ break;
+ }
+ }
+ nPrev = *mpPara;
+ mpPara++;
+ }
+ if ( *mpPara )
+ {
+ mpPara++;
+ while ( (*mpPara == ' ') || (*mpPara == 0x09) )
+ {
+ mpPara++;
+ }
+ if ( *mpPara != 0 )
+ {
+ while ( *(mpPara+mnParaSize) != ' ' && *(mpPara+mnParaSize) != 0x09 &&
+ *(mpPara+mnParaSize) != 0 )
+ {
+ mnParaSize++;
+ }
+ }
+ }
+ return ( mnParaSize ) ? TRUE : FALSE;
+}
+
+// ------------------------------------------------------------------------
+// ImplGetRGBHex uebersetzt den ASCII-Hexadezimalwert der sich bei mpPara befindet
+// in einen RGB wert und schreibt diesen nach pDest
+// folgende Formate muessen sich bei mpPara befinden:
+// wenn nAdd = 0 : '#12ab12' -> RGB = 0x12, 0xab, 0x12
+// 2 : '#1234abcd1234' " " " "
+// 6 : '#12345678abcdefab12345678' " " " "
+
+
+void XPMReader::ImplGetRGBHex( BYTE* pDest,ULONG nAdd )
+{
+ BYTE* pPtr = mpPara+1;
+ BYTE nHex, nTemp;
+
+ for ( ULONG i = 0; i < 3; i++ )
+ {
+ nHex = (*pPtr++) - '0';
+ if ( nHex > 9 )
+ nHex = ((nHex - 'A' + '0') & 7) + 10;
+
+ nTemp = (*pPtr++) - '0';
+ if ( nTemp > 9 )
+ nTemp = ((nTemp - 'A' + '0') & 7) + 10;
+ nHex = ( nHex << 4 ) + nTemp;
+
+ pPtr += nAdd;
+ *pDest++ = (BYTE)nHex;
+ }
+}
+
+// ------------------------------------------------------------------------
+// ImplGetUlong gibt den wert einer bis zu 6stelligen ASCII-Dezimalzahl zurueck.
+
+ULONG XPMReader::ImplGetULONG( ULONG nPara )
+{
+ if ( ImplGetPara ( nPara ) )
+ {
+ ULONG nRetValue = 0;
+ BYTE* pPtr = mpPara;
+
+ if ( ( mnParaSize > 6 ) || ( mnParaSize == 0 ) ) return 0;
+ for ( ULONG i = 0; i < mnParaSize; i++ )
+ {
+ BYTE j = (*pPtr++) - 48;
+ if ( j > 9 ) return 0; // ascii is invalid
+ nRetValue*=10;
+ nRetValue+=j;
+ }
+ return nRetValue;
+ }
+ else return 0;
+}
+
+// ------------------------------------------------------------------------
+
+BOOL XPMReader::ImplCompare( BYTE* pSource, BYTE* pDest, ULONG nSize, ULONG nMode )
+{
+ BOOL bRet = TRUE;
+
+ if ( nMode == XPMCASENONSENSITIVE )
+ {
+ for ( ULONG i = 0; i < nSize; i++ )
+ {
+ if ( ( pSource[i]&~0x20 ) != ( pDest[i]&~0x20 ) )
+ {
+ bRet = FALSE;
+ break;
+ }
+ }
+ }
+ else
+ {
+ for ( ULONG i = 0; i < nSize; i++ )
+ {
+ if ( pSource[i] != pDest[i] )
+ {
+ bRet = FALSE;
+ break;
+ }
+ }
+ }
+ return bRet;
+}
+
+// ------------------------------------------------------------------------
+// ImplGetPara versucht den nNumb ( 0...x ) Parameter aus mpStringBuf zu ermitteln.
+// Ein Parameter ist durch Spaces oder Tabs von den anderen getrennt.
+// Konnte der Parameter gefunden werden ist der Rueckgabewert TRUE und mpPara + mnParaSize
+// werden gesetzt.
+
+BOOL XPMReader::ImplGetPara ( ULONG nNumb )
+{
+ BYTE nByte;
+ ULONG pSize = 0;
+ BYTE* pPtr = mpStringBuf;
+ ULONG nCount = 0;
+
+ if ( ( *pPtr != ' ' ) && ( *pPtr != 0x09 ) )
+ {
+ mpPara = pPtr;
+ mnParaSize = 0;
+ nCount = 0;
+ }
+ else
+ {
+ mpPara = NULL;
+ nCount = 0xffffffff;
+ }
+
+ while ( pSize < mnStringSize )
+ {
+ nByte = *pPtr;
+
+ if ( mpPara )
+ {
+ if ( ( nByte == ' ' ) || ( nByte == 0x09 ) )
+ {
+ if ( nCount == nNumb )
+ break;
+ else
+ mpPara = NULL;
+ }
+ else
+ mnParaSize++;
+ }
+ else
+ {
+ if ( ( nByte != ' ' ) && ( nByte != 0x09 ) )
+ {
+ mpPara = pPtr;
+ mnParaSize = 1;
+ nCount++;
+ }
+ }
+ pSize++;
+ pPtr++;
+ }
+ return ( ( nCount == nNumb ) && ( mpPara ) ) ? TRUE : FALSE;
+}
+
+// ------------------------------------------------------------------------
+// Der naechste String wird ausgelesen und in mpStringBuf (mit 0 abgeschlossen) abgelegt;
+// mnStringSize enthaelt die Groesse des gelesenen Strings.
+// Bemerkungen wie '//' und '/*.....*/' werden uebersprungen.
+
+BOOL XPMReader::ImplGetString( void )
+{
+ BYTE sID[] = "/* XPM */";
+ BYTE* pString = mpStringBuf;
+
+ mnStringSize = 0;
+ mpStringBuf[0] = 0;
+
+ while( mbStatus && ( mnStatus != XPMFINISHED ) )
+ {
+ if ( mnTempAvail == 0 )
+ {
+ mnTempAvail = mrIStm.Read( mpTempBuf, XPMTEMPBUFSIZE );
+ if ( mnTempAvail == 0 )
+ break;
+
+ mpTempPtr = mpTempBuf;
+
+ if ( mnIdentifier == XPMIDENTIFIER )
+ {
+ if ( mnTempAvail <= 50 )
+ {
+ mbStatus = FALSE; // file is too short to be a correct XPM format
+ break;
+ }
+ for ( int i = 0; i < 9; i++ ) // searching for "/* XPM */"
+ if ( *mpTempPtr++ != sID[i] )
+ {
+ mbStatus = FALSE;
+ break;
+ }
+ mnTempAvail-=9;
+ mnIdentifier++;
+ }
+ }
+ mcLastByte = mcThisByte;
+ mcThisByte = *mpTempPtr++;
+ mnTempAvail--;
+
+ if ( mnStatus & XPMDOUBLE )
+ {
+ if ( mcThisByte == 0x0a )
+ mnStatus &=~XPMDOUBLE;
+ continue;
+ }
+ if ( mnStatus & XPMREMARK )
+ {
+ if ( ( mcThisByte == '/' ) && ( mcLastByte == '*' ) )
+ mnStatus &=~XPMREMARK;
+ continue;
+ }
+ if ( mnStatus & XPMSTRING ) // characters in string
+ {
+ if ( mcThisByte == '"' )
+ {
+ mnStatus &=~XPMSTRING; // end of parameter by eol
+ break;
+ }
+ if ( mnStringSize >= ( XPMSTRINGBUF - 1 ) )
+ {
+ mbStatus = FALSE;
+ break;
+ }
+ *pString++ = mcThisByte;
+ pString[0] = 0;
+ mnStringSize++;
+ continue;
+ }
+ else
+ { // characters beside string
+ switch ( mcThisByte )
+ {
+ case '*' :
+ if ( mcLastByte == '/' ) mnStatus |= XPMREMARK;
+ break;
+ case '/' :
+ if ( mcLastByte == '/' ) mnStatus |= XPMDOUBLE;
+ break;
+ case '"' : mnStatus |= XPMSTRING;
+ break;
+ case '{' :
+ if ( mnIdentifier == XPMDEFINITION )
+ mnIdentifier++;
+ break;
+ case '}' :
+ if ( mnIdentifier == XPMENDEXT )
+ mnStatus = XPMFINISHED;
+ break;
+ }
+ }
+ }
+ return mbStatus;
+}
+
+// -------------
+// - ImportXPM -
+// -------------
+
+BOOL ImportXPM( SvStream& rStm, Graphic& rGraphic )
+{
+ XPMReader* pXPMReader = (XPMReader*) rGraphic.GetContext();
+ ReadState eReadState;
+ BOOL bRet = TRUE;
+
+ if( !pXPMReader )
+ pXPMReader = new XPMReader( rStm );
+
+ rGraphic.SetContext( NULL );
+ eReadState = pXPMReader->ReadXPM( rGraphic );
+
+ if( eReadState == XPMREAD_ERROR )
+ {
+ bRet = FALSE;
+ delete pXPMReader;
+ }
+ else if( eReadState == XPMREAD_OK )
+ delete pXPMReader;
+ else
+ rGraphic.SetContext( pXPMReader );
+
+ return bRet;
+}