Splitting out libgis

[grits] / opt / level2.c

diff --git a/opt/level2.c b/opt/level2.c
deleted file mode 100644 (file)
index a4ef136..0000000
--- a/opt/level2.c
+++ /dev/null
@@ -1,128 +0,0 @@
-/* Prototype stuff for parsing Level-II data */
-/*
- * TODO: ARGG, the packet sizses are all wrong..
- *       Check sizes of decompressed bzip files
- *       Split things back up to seperate files
- * The second bzip contains different size packets?
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <error.h>
-#include <glib.h>
-#include <bzlib.h>
-#include "level2.h"
-
-/* Not used in favor of RSL */
-level2_packet_t **level2_split_packets(char *data, int *num_packets, int data_size)
-{
-       int packet_i = 0;
-       level2_packet_t  *packet = (level2_packet_t *)data;
-       int max_packets = 128;
-       level2_packet_t **packets = malloc(sizeof(level2_packet_t *)*max_packets);
-       while ((void *)packet < (void *)(data+data_size)) {
-               /* Increase packets size if necessasairy */
-               if (packet_i >= max_packets) {
-                       max_packets *= 2;
-                       packets = realloc(packets, sizeof(level2_packet_t *)*max_packets);
-               }
-
-               /* Fix byte order for packet */
-               packet->size = g_ntohs(packet->size);
-               packet->seq  = g_ntohs(packet->seq);
-               // TODO: Convert the rest of the bytes
-
-               /* Save packet location */
-               packets[packet_i] = packet;
-
-               /* Increment packet and packet_i */
-               // new =                      old              + CTM + 2*size         + fcs
-               //packet = (level2_packet_t *)( ((char *)packet) + 12  + 2*packet->size + 4 );
-               packet++;
-               packet_i++;
-       }
-       packets = realloc(packets, sizeof(level2_packet_t *)*packet_i);
-       *num_packets = packet_i;
-       return packets;
-}
-
-/* Not used in favor of RSL */
-level2_packet_t *level2_decompress(char *raw_data, int *num_packets)
-{
-       /* Read header */
-       FILE *fd = fopen(raw_data, "r");
-       if (fd == NULL)
-               error(1, errno, "Error opening files `%s'", raw_data);
-       level2_header_t header;
-       if (1 != fread(&header, sizeof(level2_header_t), 1, fd))
-               error(1, errno, "Error reading header");
-
-       /* Decompress the bzips
-        *   store the entire sequence starting at data
-        *   cur_data is for each individual bzip and is the last chunk of data */
-       char *data = NULL;
-       int data_size = 0; // size of previously decmpressed data
-       char *bz2 = NULL;  // temp buf for bzipped data
-       unsigned int _bz2_size = 0;
-       while ((int)_bz2_size >= 0) {
-               if (1 != fread(&_bz2_size, 4, 1, fd))
-                       break; //error(1, errno, "Error reading _bz2_size, pos=%x", (unsigned int)ftell(fd));
-               _bz2_size = g_ntohl(_bz2_size);
-               int bz2_size = abs(_bz2_size);
-
-               /* Read data */
-               if (NULL == (bz2 = (char *)realloc(bz2, bz2_size)))
-                       error(1, errno, "cannot allocate `%d' bytes for buffer", bz2_size);
-               if (bz2_size != fread(bz2, 1, bz2_size, fd))
-                       error(1, errno, "error reading from input file");
-
-               /* Decompress on individual bzip to the end of the sequence */
-               unsigned int cur_data_size = 1<<17;
-               int status = BZ_OUTBUFF_FULL;
-               while (status == BZ_OUTBUFF_FULL) {
-                       cur_data_size *= 2;
-                       data = realloc(data, data_size + cur_data_size);
-                       status = BZ2_bzBuffToBuffDecompress(data + data_size, &cur_data_size, bz2, bz2_size, 0, 0);
-               }
-               if (status != BZ_OK)
-                       error(1, 1, "Error decompressing data");
-               data_size += cur_data_size; // Add current chunk to decompressed data
-
-               /* Debug */
-               printf("data_size = %d, cur_data_size = %d\n", data_size, cur_data_size);
-       }
-       data = realloc(data, data_size); // free unused space at the end
-
-       return (level2_packet_t *)data;
-       //return level2_split_packets(data, num_packets, data_size);
-}
-
-
-
-int main(int argc, char **argv)
-{
-       if (argc < 2) {
-               printf("usage: %s <level2-data>\n", argv[0]);
-               return 0;
-       }
-
-       int num_packets;
-       level2_packet_t *packets = level2_decompress(argv[1], &num_packets);
-       printf("read %d packets\n", num_packets);
-       
-       //FILE *output = fopen("output.dat", "w+");
-       //fwrite(packets[i], 1, 18470816, output);
-       //fclose(output);
-
-       FILE *output = fopen("output.dat", "w+");
-       int i;
-       for (i = 0; i < 10000; i++) {
-               printf("packet: size=%x, seq=%d\n", g_ntohs(packets[i].size), g_ntohs(packets[i].seq));
-               fwrite("################", 1, 16, output);
-               fwrite(packets+i, 1, sizeof(level2_packet_t), output);
-       }
-       fclose(output);
-
-       return 0;
-}