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#ifndef __MY_BMP
#define __MY_BMP
/*
0.1 : BMP type.
2.5 : File size.
6.7 : Res.
8.9 : Res.
10.13 : Offset of bitmap.
14.17 : Header size.
18.21 : X size.
22.25 : Y size.
26.27 : Number of planes.
28.29 : Number of bits per pixel.
30.33 : Compression flag.
34.37 : Image data size in bytes.
38.41 : Res
42.45 : Res
46.49 : Res
50.53 : Res
*/
#include <stdlib.h>
#include <stdio.h>
#include "bmp.h"
#include "../bitmap.h"
#include "../../error.h"
int bmpRead( unsigned char * fname,txSample * bF )
{
unsigned char bmpHeader[54];
FILE * BMP;
unsigned long i;
unsigned char * line;
int linesize;
if ( (BMP=fopen( fname,"rt" )) == NULL )
{
#ifdef DEBUG
dbprintf( 4,"[bmp] File not found ( %s ).\n",fname );
#endif
return 1;
}
if ( (i=fread( bmpHeader,54,1,BMP )) != 1 )
{
#ifdef DEBUG
dbprintf( 4,"[bmp] Header read error ( %s ).\n",fname );
#endif
return 2;
}
// memcpy( &bF->Size,&bmpHeader[2],4 );
memcpy( &bF->Width,&bmpHeader[18],4 );
memcpy( &bF->Height,&bmpHeader[22],4 );
memcpy( &bF->BPP,&bmpHeader[28],2 );
// memcpy( &bF->ImageSize,&bmpHeader[34],4 );
bF->ImageSize=( bF->Width * bF->Height ) * ( bF->BPP / 8 );
if ( bF->BPP < 24 )
{
#ifdef DEBUG
dbprintf( 4,"[bmp] Sorry, this loader not supported 16 bit or less ...\n" );
#endif
return 3;
}
#ifdef DEBUG
dbprintf( 4,"[bmp] filename: %s\n",fname );
dbprintf( 4,"[bmp] size: %dx%d bits: %d\n",bF->Width,bF->Height,bF->BPP );
dbprintf( 4,"[bmp] imagesize: %lu\n",bF->ImageSize );
#endif
if ( ( bF->Image=malloc( bF->ImageSize ) ) == NULL )
{
#ifdef DEBUG
dbprintf( 4,"[bmp] Not enough memory for image buffer.\n" );
#endif
return 4;
}
if ( (i=fread( bF->Image,bF->ImageSize,1,BMP )) != 1 )
{
#ifdef DEBUG
dbprintf( 4,"[bmp] Image read error.\n" );
#endif
return 5;
}
fclose( BMP );
linesize=bF->Width * ( bF->BPP / 8 );
if ( (line=malloc( linesize )) == NULL )
{
#ifdef DEBUG
dbprintf( 4,"[bmp] Not enough memory for flipping.\n" );
#endif
return 6;
}
for ( i=0;i < bF->Height / 2;i++ )
{
memcpy( line,&bF->Image[ i * linesize ],linesize );
memcpy( &bF->Image[ i * linesize ],&bF->Image[ ( bF->Height - i - 1 ) * linesize ],linesize );
memcpy( &bF->Image[ ( bF->Height - i - 1 ) * linesize ],line,linesize );
}
free( line );
return 0;
}
#endif
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