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# include "bitmapConfig.h"
# include <stdlib.h>
# include "bmintern.h"
# include <appDebugon.h>
# include <sioStdio.h>
# include <sioEndian.h>
# include <utilEndian.h>
/************************************************************************/
/* */
/* Write a bitmap to a wmf stream. */
/* */
/************************************************************************/
# define MM_ANISOTROPIC 8
# define WINMETA_SaveDC 0x001e
# define WINMETA_SetMapMode 0x0103
# define WINMETA_SetWindowExt 0x020c
# define WINMETA_SetWindowOrg 0x020b
# define WINMETA_StretchBlt 0x0b41
# define WINMETA_RestoreDC 0x0127
static int bmWmfWriteSpecialHeader(
const BitmapDescription * bd,
SimpleOutputStream * sos )
{
unsigned int checksum= 0;
unsigned int val;
int twipsWide;
int twipsHigh;
const unsigned long key= 0x9ac6cdd7;
bmImageSizeTwips( &twipsWide, &twipsHigh, bd );
sioEndianPutLeInt32( key, sos );
checksum ^= ( key & 0x0000ffff );
checksum ^= ( key & 0xffff0000 ) >> 16;
/* handle */
val= 0;
sioEndianPutLeUint16( val, sos );
checksum ^= val;
/* left,top */
val= 0;
sioEndianPutLeUint16( val, sos );
checksum ^= val;
sioEndianPutLeUint16( val, sos );
checksum ^= val;
/* right,bottom */
sioEndianPutLeUint16( twipsWide, sos );
checksum ^= twipsWide;
sioEndianPutLeUint16( twipsHigh, sos );
checksum ^= twipsHigh;
/* inch */
val= 1440;
sioEndianPutLeUint16( val, sos );
checksum ^= val;
/* reserved */
val= 0;
sioEndianPutLeUint32( val, sos );
checksum ^= ( val & 0x0000ffff );
checksum ^= ( val & 0xffff0000 ) >> 16;
/* checksum */
sioEndianPutLeUint16( checksum, sos );
return 22;
}
static int bmWmfWriteWmfIntern( const BitmapDescription * bd,
const unsigned char * buffer,
SimpleOutputStream * sos,
int specialHeader )
{
int done;
int bytesWritten= 0;
long bltArgCountPos= -1L;
long bltArgCount;
int headSize= 0;
long fileSize= 0L;
long headerOffset= 0L;
long recordSize;
long maxRecordSize= 0L;
if ( specialHeader )
{
done= bmWmfWriteSpecialHeader( bd, sos );
if ( done < 0 )
{ LDEB(done); return -1; }
headSize= done;
bytesWritten += done;
}
sioEndianPutLeInt16( 1, sos ); /* fileType */
sioEndianPutLeInt16( 9, sos ); /* headerSize */
sioEndianPutLeInt16( 768, sos ); /* windowsVersion */
sioEndianPutLeInt32( fileSize, sos ); /* fileSize */
sioEndianPutLeInt16( 0, sos ); /* objectCount */
sioEndianPutLeInt32( maxRecordSize, sos ); /* maxRecordSize */
sioEndianPutLeInt16( 0, sos ); /* parameterCount */
bytesWritten += 2+ 2+ 2+ 4+ 2+ 4+ 2;
recordSize= 2+ 1;
sioEndianPutLeInt32( recordSize, sos );
sioEndianPutLeInt16( WINMETA_SaveDC, sos );
bytesWritten += 2* recordSize;
if ( maxRecordSize < recordSize )
{ maxRecordSize= recordSize; }
recordSize= 2+ 1+ 1;
sioEndianPutLeInt32( recordSize, sos );
sioEndianPutLeInt16( WINMETA_SetMapMode, sos );
sioEndianPutLeInt16( MM_ANISOTROPIC, sos );
bytesWritten += 2* recordSize;
if ( maxRecordSize < recordSize )
{ maxRecordSize= recordSize; }
recordSize= 2+ 1+ 1+ 1;
sioEndianPutLeInt32( recordSize, sos );
sioEndianPutLeInt16( WINMETA_SetWindowOrg, sos );
sioEndianPutLeInt16( 0, sos );
sioEndianPutLeInt16( 0, sos );
bytesWritten += 2* recordSize;
if ( maxRecordSize < recordSize )
{ maxRecordSize= recordSize; }
recordSize= 2+ 1+ 1+ 1;
sioEndianPutLeInt32( recordSize, sos );
sioEndianPutLeInt16( WINMETA_SetWindowExt, sos );
sioEndianPutLeInt16( bd->bdPixelsHigh, sos );
sioEndianPutLeInt16( bd->bdPixelsWide, sos );
bytesWritten += 2* recordSize;
if ( maxRecordSize < recordSize )
{ maxRecordSize= recordSize; }
bltArgCountPos= bytesWritten;
recordSize= 2+ 1+ 2+ ( 1+ 1+ 1+ 1 )+ ( 1+ 1+ 1+ 1 );
sioEndianPutLeInt32( recordSize, sos );
sioEndianPutLeInt16( WINMETA_StretchBlt, sos );
sioEndianPutLeInt32( 0xcc0020, sos );
sioEndianPutLeInt16( bd->bdPixelsHigh, sos );
sioEndianPutLeInt16( bd->bdPixelsWide, sos );
sioEndianPutLeInt16( 0, sos );
sioEndianPutLeInt16( 0, sos );
sioEndianPutLeInt16( bd->bdPixelsHigh, sos );
sioEndianPutLeInt16( bd->bdPixelsWide, sos );
sioEndianPutLeInt16( 0, sos );
sioEndianPutLeInt16( 0, sos );
done= bmBmpSaveDib( bd, buffer, bytesWritten+ 2* recordSize, (void *)sos );
if ( done < 0 || done % 2 )
{ LDEB(done); return -1; }
recordSize += done/ 2;
bltArgCount= recordSize;
bytesWritten += 2* recordSize;
if ( maxRecordSize < recordSize )
{ maxRecordSize= recordSize; }
recordSize= 2+ 1+ 1;
sioEndianPutLeInt32( recordSize, sos );
sioEndianPutLeInt16( WINMETA_RestoreDC, sos );
sioEndianPutLeInt16( -1, sos );
bytesWritten += 2* recordSize;
if ( maxRecordSize < recordSize )
{ maxRecordSize= recordSize; }
recordSize= 2+ 1;
sioEndianPutLeInt32( recordSize, sos );
sioEndianPutLeInt16( 0, sos );
bytesWritten += 2* recordSize;
if ( maxRecordSize < recordSize )
{ maxRecordSize= recordSize; }
fileSize= bytesWritten- headSize;
if ( sioOutSeek( sos, headerOffset ) )
{ LDEB(headerOffset); return -1; }
if ( specialHeader )
{
done= bmWmfWriteSpecialHeader( bd, sos );
if ( done < 0 )
{ LDEB(done); return -1; }
}
sioEndianPutLeInt16( 1, sos ); /* fileType */
sioEndianPutLeInt16( 9, sos ); /* headerSize */
sioEndianPutLeInt16( 768, sos ); /* windowsVersion */
sioEndianPutLeInt32( fileSize, sos ); /* fileSize */
sioEndianPutLeInt16( 0, sos ); /* objectCount */
sioEndianPutLeInt32( maxRecordSize, sos ); /* maxRecordSize */
sioEndianPutLeInt16( 0, sos ); /* parameterCount */
if ( sioOutSeek( sos, bltArgCountPos ) )
{ LDEB(headerOffset); return -1; }
sioEndianPutLeInt32( bltArgCount, sos );
if ( sioOutSeek( sos, headSize+ fileSize ) )
{ LDEB(headerOffset); return -1; }
return 0;
}
int bmWmfWriteWmf( const BitmapDescription * bd,
const unsigned char * buffer,
SimpleOutputStream * sos )
{ return bmWmfWriteWmfIntern( bd, buffer, sos, 0 ); }
/************************************************************************/
/* */
/* Can write a bitmap to a WMF file? */
/* */
/************************************************************************/
int bmCanWriteWmfFile( const BitmapDescription * bd,
int privateFormat,
double compressionFactor )
{ return bmCanWriteBmpFile( bd, privateFormat, compressionFactor ); }
int bmWriteWmfFile( const char * filename,
const unsigned char * buffer,
const BitmapDescription * bd,
int privateFormat,
double compressionFactor )
{
SimpleOutputStream * sos;
sos= sioOutStdioOpen( filename );
if ( ! sos )
{ SDEB(filename); return -1; }
if ( bmWmfWriteWmfIntern( bd, buffer, sos, 1 ) )
{ SDEB(filename); sioOutClose( sos ); return -1; }
sioOutClose( sos );
return 0;
}
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