#include "VidHeader.cpp"

int main( int argc, char ** argv ){
	
	if( argc < 2 ){
		fprintf(stderr,"Usage: zlib_expand <file to expand>\n.");
		exit(1);
	}

	const char * in_filename = argv[1];
	char * out_filename = new char[strlen(in_filename) + 20];
	strcpy(out_filename, in_filename);
	char * chop_out = strstr(out_filename,".zlib");
	if( chop_out )
		*chop_out = 0;
	else
		sprintf(out_filename, "%s.unzlib", in_filename);
	
	FILE * in_file = fopen(in_filename, "rb");
	if( in_file == NULL ){
		fprintf(stderr,"%s:%d Unable to open input file in 'rb' mode.\n%s\n", __FILE__, __LINE__, in_filename); exit(1);
	}
		
	FILE * out_file = fopen(out_filename, "wb");
	if( in_file == NULL ){
		fprintf(stderr,"%s:%d Unable to open output file in 'wb' mode.\n%s\n", __FILE__, __LINE__, out_filename); exit(1);
	}

	fseek(in_file, 0, SEEK_END);
	int in_file_size = ftell(in_file);
	fseek(in_file, 0, SEEK_SET);
	uchar * in_array = new uchar[in_file_size];
	int read_size = fread(in_array, 1, in_file_size, in_file);
	fclose(in_file);
	
	ulong out_file_size = 0;
	uchar * out_array  = NULL;
	if( uncompress_MT( out_array, out_file_size, in_array, in_file_size ) != Z_OK ){
		fprintf( stderr,"%s:%d Could not decompress, uncompress_MT gives out_file_size = %lu bytes.\n", __FILE__, __LINE__, out_file_size );
		return 1;
	}
	fwrite(out_array, 1, out_file_size, out_file);
	fclose(out_file);

	unlink(in_filename);
	delete [] out_filename;
	delete [] out_array;
	delete [] in_array;
}