1 files changed, 227 insertions, 0 deletions
diff --git a/app/help/fixbmp.c b/app/help/fixbmp.c
new file mode 100644
index 0000000..44555dc
--- /dev/null
+++ b/app/help/fixbmp.c
@@ -0,0 +1,227 @@
+
+/*  XTrkCad - Model Railroad CAD
+ *  Copyright (C) 2005 Dave Bullis
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program 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 General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#include <stdio.h>
+
+#define TRUE	(1)
+#define FALSE	(0)
+
+struct BITMAPFILEHEADER {
+	char bfType[2];
+	long bfSize;
+	short bfRsvd1;
+	short bfRsvd2;
+	long bfOffBits;
+	};
+
+struct BITMAPINFOHEADER {
+	long biSize;
+	long biWidth;
+	long biHeight;
+	short biPlanes;
+	short biBitCount;
+	long biCompression;
+	long biSizeImage; 
+	long biXPelsPerMeter;
+	long biYPelsPerMeter;
+	long biClrUsed;
+	long biClrImportant; 
+	};
+
+int namenames;
+int dumpInfo;
+int dumpColorMap;
+int dumpBits;
+int dumpHisto;
+int updateColorCount;
+int zeroColorCount;
+int setColorCount;
+int fixColorMap;
+
+int fixbmp( char * filename )
+{
+	FILE * file;
+	struct BITMAPFILEHEADER bmfh;
+	struct BITMAPINFOHEADER bmih;
+	int rc;
+	long colors[256];
+	int i, j, size;
+	unsigned char * bmp, bit;
+	int colorCnt;
+	long maxcolor;
+	long histo[256];;
+
+	if ( namenames )
+		printf( "%s\n", filename );
+	file = fopen( filename, "r+" );
+	if ( file == NULL ) {
+		fprintf( stderr, "%s: Cant open:%s\n", filename, filename );
+		return FALSE;
+	}
+	rc = fread( &bmfh.bfType, 1, sizeof bmfh.bfType, file );
+	rc += fread( &bmfh.bfSize, 1, sizeof bmfh.bfSize, file );
+	rc += fread( &bmfh.bfRsvd1, 1, sizeof bmfh.bfRsvd1, file );
+	rc += fread( &bmfh.bfRsvd2, 1, sizeof bmfh.bfRsvd2, file );
+	rc += fread( &bmfh.bfOffBits, 1, sizeof bmfh.bfOffBits, file );
+	if ( rc != 14 ) {
+		fprintf( stderr, "%s: Bad read of bmfh: %d\n", filename, rc );
+		return FALSE;
+	}
+	rc = fread( &bmih, 1, sizeof bmih, file );
+	if ( rc != sizeof bmih ) {
+		fprintf( stderr, "%s: Bad read of bmih: %d\n", filename, rc );
+		return FALSE;
+	}
+	if ( dumpInfo ) {
+		printf( "fh:sz=%d, off=%ld\n", bmfh.bfSize, bmfh.bfOffBits );
+		printf( "ih:sz=%ld, w=%ld, h=%ld, (%ld), pl=%d, bc=%d, co=%ld, si=%ld, cu=%ld, ci=%ld\n",
+			bmih.biSize, bmih.biWidth, bmih.biHeight, bmih.biWidth*bmih.biHeight,
+			bmih.biPlanes, bmih.biBitCount, bmih.biCompression,
+			bmih.biSizeImage, bmih.biClrUsed, bmih.biClrImportant );
+	}
+	if ( bmih.biPlanes != 1 || bmih.biBitCount != 8 ) {
+		fprintf( stderr, "%s: bad Planes(%d) or BitCount(%d)\n", filename, bmih.biPlanes, bmih.biBitCount );
+		return FALSE;
+	}
+	if ( bmih.biClrUsed > 256 ) {
+		fprintf( stderr, "%s: Too many colors (%ld)\n", filename, bmih.biClrUsed );
+		return FALSE;
+	}
+	colorCnt = bmih.biClrUsed;
+	if ( colorCnt == 0 )
+		colorCnt = 256;
+	rc = fread( colors, sizeof colors[0], colorCnt, file );
+	if ( rc != colorCnt ) {
+		fprintf( stderr, "%s: Bad read of colors: %d\n", filename, rc );
+		return FALSE;
+	}
+	if ( dumpColorMap ) {
+		printf( "colorcnt=%d", rc );
+		for ( i=0; i<colorCnt; i++ ) {
+			if ( i%8 == 0 )
+				printf( "\n%2.2x: ", i );
+			printf( "%8.8lx ", colors[i] );
+		}
+		printf( "\n" );
+	}
+	if ( fixColorMap ) {
+		long c;
+		for ( i=0; i<colorCnt; i++ ) {
+			c = colors[i]&0xFFFFFF;
+			if ( (c & 0xFF0000) != 0xFF0000 )
+				c &= 0xF0FFFF;
+			if ( (c & 0x00FF00) != 0x00FF00 )
+				c &= 0xFFF0FF;
+			if ( (c & 0x0000FF) != 0x0000FF )
+				c &= 0xFFFFF0;
+			colors[i] = c;
+		}
+		fseek( file, 14+40, SEEK_SET );
+		rc = fwrite( colors, sizeof colors[0], colorCnt, file );
+		if ( rc != colorCnt ) {
+			fprintf( stderr, "%s: Bad write of colors: %d\n", filename, rc );
+			return FALSE;
+		}
+	}
+	size = (int)(bmih.biWidth*bmih.biHeight);
+	size = (int)bmih.biWidth;
+	size = (size+3)/4*4;
+	fseek( file, bmfh.bfOffBits, SEEK_SET );
+	bmp = (unsigned char*)malloc( size );
+	if ( bmp == NULL ) {
+		fprintf( stderr, "%s: Cant malloc(%d) for bitmap\n", filename, size );
+		return FALSE;
+	}
+	maxcolor = 0;
+	memset( histo, 0, sizeof histo );
+	for ( j=0; j<bmih.biHeight; j++ ) {
+		rc = fread( bmp, 1, size, file );
+		if ( rc != size ) {
+			fprintf( stderr, "%s: Cant read bits for line %d: %d\n", filename, j, rc );
+			return FALSE;
+		}
+		if ( dumpBits )
+			printf( "%2.2d: ", j );
+		for ( i=0; i<bmih.biWidth; i++ ) {
+			bit = bmp[i];
+			histo[bit]++;
+			if ( dumpBits )
+				printf( "%2.2x", bit );
+			if ( bit > maxcolor )
+				maxcolor = bit;
+		}
+		if ( dumpBits )
+			printf( "\n" );
+	}
+	free( bmp );
+	if ( dumpHisto ) {
+		printf( "maxcolor=%ld\n", maxcolor );
+		for ( i=0; i<256; i++ )
+			if ( histo[i] )
+				printf( "[%2.2x]%8.8x = %ld\n", i, colors[i], histo[i] );
+	
+	}
+	if ( updateColorCount || zeroColorCount || setColorCount ) {
+		fseek( file, 14, SEEK_SET );
+		if ( updateColorCount ) {
+			bmih.biClrImportant = maxcolor;
+		} else if ( zeroColorCount ) {
+			bmih.biClrImportant = 0;
+			bmih.biClrUsed = 0;
+		} else {
+			bmih.biClrImportant = 256;
+			bmih.biClrUsed = 256;
+		}
+		rc = fwrite( &bmih, 1, sizeof bmih, file );
+		if ( rc != sizeof bmih ) {
+			fprintf( stderr, "%s: Update failed; %d\n", filename, rc );
+		}
+	}
+	fclose( file );
+	return TRUE;
+}
+
+
+int main( int argc, char * argv[] )
+{
+	while ( argc > 2 && argv[1][0] == '-' ) {
+		switch ( argv[1][1] ) {
+		case 'a': dumpInfo++; dumpColorMap++; dumpBits++; dumpHisto++; break;
+		case 'i': dumpInfo++; break;
+		case 'c': dumpColorMap++; break;
+		case 'b': dumpBits++; break;
+		case 'h': dumpHisto++; break;
+		case 'u': updateColorCount++; break;
+		case 'z': zeroColorCount++; break;
+		case 's': setColorCount++; break;
+		case 'f': fixColorMap++; break;
+		default:
+			fprintf( stderr, "bad option %s\n", argv[1] );
+		}
+		argc--;
+		argv++;
+	}
+	if ( argc > 2 && dumpInfo+dumpColorMap+dumpBits+dumpHisto > 0 )
+		namenames++;
+	while ( argc > 1 ) {
+		fixbmp( argv[1] );
+		argc--;
+		argv++;
+	}
+}