* Initial import of the logotool utility

logotool/uncompress.c

@@ -0,0 +1,124 @@
+/*
+ * Copyright (C) 2007
+ *       pancake <pancake@youterm.com>
+ *       esteve <esteve@eslack.org>
+ *
+ * logotool 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.
+ *
+ * logotool 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 logotool; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <string.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+int uncompress_image(char *srcf, char *dstf)
+{
+	int fd;
+	int fout;
+	int width,height;
+	int fsize;
+	char* src;
+	char* dst;
+	char* src2;
+	char* eof;
+	char *deof;
+	char* dst2 = NULL;
+	unsigned char byte;
+
+	fd    = open( srcf, O_RDONLY );
+
+	if (fd == -1) {
+		printf("Cannot open file '%s'\n", srcf);
+		return 1;
+	}
+
+	fout  = open( dstf, O_CREAT | O_WRONLY , 0660 );
+
+	if (fout == -1) {
+		printf("Cannot open file '%s' for writing\n", dstf);
+		return 1;
+	}
+
+	fprintf(stderr, "Input file: %s\n", srcf);
+	fprintf(stderr, "Output file: %s\n", dstf);
+	fsize = lseek ( fd, 0,SEEK_END);
+	fsize = lseek ( fd, 0,SEEK_CUR);
+	lseek ( fd,0, SEEK_SET);
+
+	fsize -= 8;
+
+	read ( fd, &width, 4 );
+	read ( fd, &height, 4 );
+
+	fprintf(stderr, "Width: %d\nHeight: %d\n",width, height);
+	fprintf(stderr, "Input Size: %d\n",fsize);
+	src = malloc ( fsize );
+	dst = malloc ( width*height*2 );
+	deof = dst+width*height*2;
+	if ((int)src == -1 || (int)dst == -1 ) {
+		printf("Cannot malloc\n");
+		return 1;
+	}
+
+	memset(dst,'\0', width*height*2);
+
+	read(fd, src, fsize);
+	eof = src+fsize;
+
+	for(dst2 = dst, src2 = src; src2<eof;) {
+		//byte = src2[0] & 0xff;
+		//src2 = src2 + 1;
+		byte=(*src2++)&0xff;
+		// [1xxxyyyy] [char] [char]
+		// copies xxxyyyy times two chars
+		if (byte > 0x7f) {
+			int i,j = byte&0x7f;
+			for(i=0; i++<j; dst2+=2) 
+				memcpy(dst2, src2, 2);
+			src2+=2;
+		} else {	
+			if ( byte != 0x00 ) {
+				byte<<=1;
+			//	fprintf(stderr, "COPYING: %d %d\n", byte, (eof-src2));
+				if ((dst2+byte >= deof || (src2+byte >= eof))) {
+					fprintf(stderr, "Break\n");
+					break;
+				} 
+				memcpy(dst2, src2, byte);
+				src2+=byte; dst2+=byte;
+			}
+		}
+	}
+	fprintf(stderr, "Output Size: %d\n",dst2-dst);
+
+	if ((dst2-dst)!=(width*height*2))
+		fprintf(stderr, "failed?\n");
+
+	write ( fout, dst,  width*height*2);
+
+	close(fout);
+	close(fd);
+
+	//printf("./logotool -w %d -h %d -v %s || \n", width, height, dstf);
+	//printf("logotool -w %d -h %d -v %s\n", width, height, dstf);
+	printf("eval PATH=$PWD:$PATH logotool -w %d -h %d -m %s\n", width, height, dstf);
+
+	return 0;
+}