summaryrefslogtreecommitdiff
path: root/yazedc-main.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'yazedc-main.cpp')
-rw-r--r--yazedc-main.cpp314
1 files changed, 314 insertions, 0 deletions
diff --git a/yazedc-main.cpp b/yazedc-main.cpp
new file mode 100644
index 0000000..533567c
--- /dev/null
+++ b/yazedc-main.cpp
@@ -0,0 +1,314 @@
+/*
+ * PSX-Tools Bundle Pack
+ * Copyright (C) 1998 Heiko Eissfeldt
+ * portions used& Chris Smith
+ * Modified by Yazoo, then by
+ * Nicolas "Pixel" Noble
+ *
+ * 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>
+#include <string.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static int do_decode_L2(unsigned char in[(L2_RAW+L2_Q+L2_P)],
+ unsigned char out[L2_RAW])
+{
+ return 0;
+}
+#endif
+
+
+#define MAX_SUB_DEL 8
+static unsigned char sub_delay_line[MAX_SUB_DEL][LSUB_RAW+LSUB_Q+LSUB_P];
+static unsigned sub_del_index;
+
+/* R-W Subchannel en/decoder */
+int do_encode_sub(unsigned char in[LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME],
+ unsigned char out[(LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME],
+ int delay1, int permute)
+{
+ int i;
+
+ if (in == out) return -1;
+
+ for (i = 0; i < PACKETS_PER_SUBCHANNELFRAME; i++) {
+ int j;
+ unsigned char t;
+
+ memcpy(out, in, (LSUB_RAW));
+
+ /* build Q parity */
+ encode_LSUB_Q(out);
+
+ /* build P parity */
+ encode_LSUB_P(out);
+
+ if (permute) {
+ /* permute */
+ t = out[1]; out[1] = out[18]; out[18] = t;
+ t = out[2]; out[2] = out[ 5]; out[ 5] = t;
+ t = out[3]; out[3] = out[23]; out[23] = t;
+ }
+
+ if (delay1) {
+ /* shift through delay_line */
+ for (j = 0; j < LSUB_RAW+LSUB_Q+LSUB_P; j++) {
+ if ((j % MAX_SUB_DEL) != 0) {
+ t = sub_delay_line[(sub_del_index) % MAX_SUB_DEL][j];
+ sub_delay_line[(sub_del_index + j) % MAX_SUB_DEL][j] = out[j];
+ out[j] = t;
+ }
+ }
+ }
+ sub_del_index++;
+ out += LSUB_RAW+LSUB_Q+LSUB_P;
+ in += LSUB_RAW;
+ }
+ return 0;
+}
+
+int
+do_decode_sub(
+ unsigned char in[(LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME],
+ unsigned char out[LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME],
+ int delay1, int permute)
+{
+ int i;
+
+ if (in == out) return -1;
+
+ for (i = 0; i < PACKETS_PER_SUBCHANNELFRAME; i++) {
+ int j;
+ unsigned char t;
+
+ if (delay1) {
+ /* shift through delay_line */
+ for (j = 0; j < LSUB_RAW+LSUB_Q+LSUB_P; j++) {
+ if ((j % MAX_SUB_DEL) != MAX_SUB_DEL-1) {
+ t = sub_delay_line[(sub_del_index) % MAX_SUB_DEL][j];
+ sub_delay_line[(sub_del_index + (MAX_SUB_DEL - j)) % MAX_SUB_DEL][j] = in[j];
+ in[j] = t;
+ }
+ }
+ }
+
+ if (permute) {
+ /* permute */
+ t = in[1]; in[1] = in[18]; in[18] = t;
+ t = in[2]; in[2] = in[ 5]; in[ 5] = t;
+ t = in[3]; in[3] = in[23]; in[23] = t;
+ }
+
+ /* build P parity */
+ decode_LSUB_P(in);
+
+ /* build Q parity */
+ decode_LSUB_Q(in);
+
+ memcpy(out, in, LSUB_QRAW);
+ memcpy(out+LSUB_QRAW, in+LSUB_QRAW+LSUB_Q, LSUB_RAW-LSUB_QRAW);
+
+ sub_del_index++;
+ in += LSUB_RAW+LSUB_Q+LSUB_P;
+ out += LSUB_RAW;
+ }
+ return 0;
+}
+
+static int sectortype = MODE_0;
+int get_sector_type(void)
+{
+ return sectortype;
+}
+
+int set_sector_type(int st)
+{
+ switch(st) {
+ case MODE_0:
+ case MODE_1:
+ case MODE_2:
+ case MODE_2_FORM_1:
+ case MODE_2_FORM_2:
+ sectortype = st;
+ default:
+ return -1;
+ }
+ return 0;
+}
+
+/* ------------- --------------*/
+#ifdef MAIN
+
+#define DO_L1 1
+#define DO_L2 2
+#define DO_SUB 4
+
+static const unsigned sect_size[8][2] = {
+/* nothing */
+{0,0},
+/* Layer 1 decode/encode */
+{ (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR, L1_RAW*FRAMES_PER_SECTOR},
+/* Layer 2 decode/encode */
+{ 16+L2_RAW+12+L2_Q+L2_P, L2_RAW},
+/* Layer 1 and 2 decode/encode */
+{ (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR, L1_RAW*FRAMES_PER_SECTOR},
+/* Subchannel decode/encode */
+{ (LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME,
+ LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME},
+/* Layer 1 and subchannel decode/encode */
+{ (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR +
+ (LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME,
+ LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME +
+ L1_RAW*FRAMES_PER_SECTOR},
+/* Layer 2 and subchannel decode/encode */
+{ L2_RAW+L2_Q+L2_P+
+ (LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME,
+ LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME +
+ L2_RAW},
+/* Layer 1, 2 and subchannel decode/encode */
+{ (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR +
+ (LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME,
+ LSUB_RAW*PACKETS_PER_SUBCHANNELFRAME +
+ L1_RAW*FRAMES_PER_SECTOR},
+};
+
+int main(int argc, char **argv)
+{
+ int encode = 1;
+ int mask = DO_L2;
+ FILE * infp;
+ FILE * outfp;
+ unsigned address = 0;
+ unsigned char *l1_inbuf;
+ unsigned char *l1_outbuf;
+ unsigned char *l2_inbuf;
+ unsigned char *l2_outbuf;
+ unsigned char *sub_inbuf;
+ unsigned char *sub_outbuf;
+ unsigned char *last_outbuf;
+ unsigned char inbuf[(LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME +
+ (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR];
+ unsigned char outbuf[(LSUB_RAW+LSUB_Q+LSUB_P)*PACKETS_PER_SUBCHANNELFRAME +
+ (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR];
+ unsigned load_offset;
+
+ l1_inbuf = l2_inbuf = sub_inbuf = inbuf;
+ l1_outbuf = l2_outbuf = sub_outbuf = last_outbuf = outbuf;
+
+ infp = fopen("sectors_in", "rb");
+ outfp = fopen("sectors_out", "wb");
+
+ sectortype= MODE_2_FORM_1;
+ address = 0 + 75*2;
+
+ switch (sectortype) {
+ case MODE_1:
+ case MODE_2:
+ load_offset = 16;
+ break;
+ case MODE_2_FORM_1:
+ case MODE_2_FORM_2:
+ load_offset = 24;
+ break;
+ default:
+ load_offset = 0;
+ }
+ while(1) {
+
+ if (1 != fread(inbuf+load_offset,
+ sect_size[mask][encode], 1, infp)) { perror(""); break; }
+ if (encode == 1) {
+ if (mask & DO_L2) {
+ switch (sectortype) {
+ case MODE_0:
+ break;
+ case MODE_1:
+ break;
+ case MODE_2:
+ if (1 !=
+ fread(inbuf+load_offset+
+ sect_size[mask][encode],
+ 2336 - sect_size[mask][encode],
+ 1, infp)) { perror(""); break; }
+ break;
+ case MODE_2_FORM_1:
+ break;
+ case MODE_2_FORM_2:
+ if (1 !=
+ fread(inbuf+load_offset+
+ sect_size[mask][encode],
+ 2324 - sect_size[mask][encode],
+ 1, infp)) { perror(""); break; }
+ break;
+ default:
+ if (1 !=
+ fread(inbuf+load_offset+
+ sect_size[mask][encode],
+ 2448 - sect_size[mask][encode],
+ 1, infp)) { perror(""); break; }
+ memset(inbuf,0,16);
+ /*memset(inbuf+16+2048,0,12+272);*/
+ break;
+ }
+ do_encode_L2(l2_inbuf, MODE_1, address);
+ if (0) scramble_L2(l2_inbuf);
+ last_outbuf = l1_inbuf = l2_inbuf;
+ l1_outbuf = l2_inbuf;
+ sub_inbuf = l2_inbuf + L2_RAW;
+ sub_outbuf = l2_outbuf + 12 + 4+ L2_RAW+4+ 8+ L2_Q+L2_P;
+ }
+ if (mask & DO_L1) {
+ do_encode_L1(l1_inbuf, l1_outbuf,1,1,1,1);
+ last_outbuf = l1_outbuf;
+ sub_inbuf = l1_inbuf + L1_RAW*FRAMES_PER_SECTOR;
+ sub_outbuf = l1_outbuf + (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR;
+ }
+ if (mask & DO_SUB) {
+ do_encode_sub(sub_inbuf, sub_outbuf, 0, 0);
+ }
+ } else {
+ if (mask & DO_L1) {
+ do_decode_L1(l1_inbuf, l1_outbuf,1,1,1,1);
+ last_outbuf = l2_inbuf = l1_outbuf;
+ l2_outbuf = l1_inbuf;
+ sub_inbuf = l1_inbuf + (L1_RAW+L1_Q+L1_P)*FRAMES_PER_SECTOR;
+ sub_outbuf = l1_outbuf + L1_RAW*FRAMES_PER_SECTOR;
+ }
+ if (mask & DO_L2) {
+ do_decode_L2(l2_inbuf, l2_outbuf);
+ last_outbuf = l2_outbuf;
+ sub_inbuf = l2_inbuf + L2_RAW+L2_Q+L2_P;
+ sub_outbuf = l2_outbuf + L2_RAW;
+ }
+ if (mask & DO_SUB) {
+ do_decode_sub(sub_inbuf, sub_outbuf, 1, 1);
+ }
+ }
+ if (1 != fwrite(last_outbuf, sect_size[mask][1 - encode], 1, outfp)) {
+ perror("");
+ break;
+ }
+ address++;
+ }
+#if 0
+ /* flush the data from the delay lines with zeroed sectors, if necessary */
+#endif
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-12 06:21:56 +0000