mirror of
https://github.com/deater/dos33fsprogs.git
synced 2024-08-18 07:29:33 +00:00
636 lines
17 KiB
C
636 lines
17 KiB
C
// function VTM2PT3(PT3:PSpeccyModule;VTM:PModule;
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// function PT32VTM
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <fcntl.h>
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static unsigned char buffer[65536];
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static short ChPtr[3];
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static unsigned char Skip[3];
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static unsigned char SkipCounter[3];
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static unsigned char PrevOrn[3];
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static int NsBase;
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static short pt3_pat_ptr;
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struct additional_cmd_type {
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unsigned char Number;
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unsigned char Delay;
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unsigned char Parameter;
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};
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struct channel_line_type {
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int Note;
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unsigned char Sample; // 0..31
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unsigned char Ornament; // 0..15
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unsigned char Volume; // {1-15 - vol, 0 - prev vol}
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unsigned char Envelope; // {1-14 - R13, 15 - Envelope off, 0 - prev}
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struct additional_cmd_type Additional_Command;
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};
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struct item_type {
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unsigned char Noise;
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unsigned short Envelope;
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struct channel_line_type Channel[3];
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};
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struct pattern_type {
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int length;
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struct item_type Items[256];
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} patterns[256];
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static int debug=1;
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void PatternInterpreter(int PatNum, int LnNum, int ChNum) {
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int quit;
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short tmp;
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quit=0;
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int initial;
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do {
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initial=buffer[ChPtr[ChNum]];
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switch(initial) {
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/* ???? */
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case 0xf0 ... 0xff:
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if (debug) printf("%x: ??\n",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Envelope=
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15;
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PrevOrn[ChNum] = buffer[ChPtr[ChNum]] - 0xf0;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Ornament=
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PrevOrn[ChNum];
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ChPtr[ChNum]++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Sample=
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buffer[ChPtr[ChNum]] / 2;
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break;
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/* Set Sample */
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case 0xd1 ... 0xef:
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if (debug) printf("%x: Sample ",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Sample=
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buffer[ChPtr[ChNum]]-0xd0;
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break;
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/* Nothing? */
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case 0xd0:
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if (debug) printf("%x: Nothing ",initial);
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quit=1;
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break;
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/* Volume */
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case 0xc1 ... 0xcf:
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if (debug) printf("%x: Volume ",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Volume=
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buffer[ChPtr[ChNum]]-0xc0;
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break;
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/* Sound off? */
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case 0xc0:
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patterns[PatNum].Items[LnNum].Channel[ChNum].Note=-2;
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quit=1;
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break;
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/* ??? */
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case 0xb2 ... 0xbf:
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patterns[PatNum].Items[LnNum].Channel[ChNum].Envelope=
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buffer[ChPtr[ChNum]]-0xb1;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Ornament=
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PrevOrn[ChNum];
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ChPtr[ChNum]++;
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patterns[PatNum].Items[LnNum].Envelope=
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((short)buffer[ChPtr[ChNum]])<<8;
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ChPtr[ChNum]++;
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patterns[PatNum].Items[LnNum].Envelope+=
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buffer[ChPtr[ChNum]];
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break;
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/* ??? */
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case 0xb1:
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ChPtr[ChNum]++;
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Skip[ChNum]=buffer[ChPtr[ChNum]];
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break;
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/* ??? */
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case 0xb0:
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patterns[PatNum].Items[LnNum].Channel[ChNum].Envelope=
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15;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Ornament=
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PrevOrn[ChNum];
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break;
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/* Set note */
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case 0x50 ... 0xaf:
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if (debug) printf("%x: Note ",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Note=
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buffer[ChPtr[ChNum]] - 0x50;
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quit=1;
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break;
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/* ??? */
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case 0x40 ... 0x4f:
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if (buffer[ChPtr[ChNum]]==0x40) {
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// only for Orn #0 rom pt3.69
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if (patterns[PatNum].Items[LnNum].Channel[ChNum].Envelope == 0) {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Envelope = 15;
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}
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}
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PrevOrn[ChNum] = buffer[ChPtr[ChNum]]-0x40;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Ornament=
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PrevOrn[ChNum];
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break;
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/* Set noise */
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case 0x20 ... 0x3f:
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if (debug) printf("%x: Noise ",initial);
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NsBase = buffer[ChPtr[ChNum]]-0x20;
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break;
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/* ?? */
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case 0x10 ... 0x1f:
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if (debug) printf("%x: ??? ",initial);
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if (buffer[ChPtr[ChNum]]==0x10) {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Envelope=15;
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}
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else {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Envelope=buffer[ChPtr[ChNum]]-0x10;
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ChPtr[ChNum]++;
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patterns[PatNum].Items[LnNum].Envelope=((short)(buffer[ChPtr[ChNum]]))<<8;
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ChPtr[ChNum]++;
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patterns[PatNum].Items[LnNum].Envelope+=buffer[ChPtr[ChNum]];
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}
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patterns[PatNum].Items[LnNum].Channel[ChNum].Ornament = PrevOrn[ChNum];
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ChPtr[ChNum]++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Sample=
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buffer[ChPtr[ChNum]] / 2;
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break;
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/* Additional Command Number */
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case 0x8 ... 0x9:
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if (debug) printf("%x: ??? ",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number=
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buffer[ChPtr[ChNum]];
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break;
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/* Additional Command Number */
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case 0x1 ... 0x5:
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if (debug) printf("%x: ??? ",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number=
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buffer[ChPtr[ChNum]];
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break;
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default:
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printf("UNKNOWN VALUE %x\n",initial);
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break;
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}
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ChPtr[ChNum]++;
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} while (!quit);
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/* Handle Additional Commands */
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initial=patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number;
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switch(initial) {
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case 1:
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printf("AC: %d\n",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Delay=buffer[ChPtr[ChNum]];
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ChPtr[ChNum]++;
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memcpy(&tmp,&buffer[ChPtr[ChNum]],2);
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if (tmp<0) {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter=-tmp;
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}
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else {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter=tmp;
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}
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ChPtr[ChNum]+=2;
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break;
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case 2:
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printf("AC: %d\n",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Delay=buffer[ChPtr[ChNum]];
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ChPtr[ChNum]+=3;
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memcpy(&tmp,&buffer[ChPtr[ChNum]],2);
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if (tmp < 0) {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter = -tmp;
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} else {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter = tmp;
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}
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ChPtr[ChNum]+=2;
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break;
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case 3:
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case 4:
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printf("AC: %d\n",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter=buffer[ChPtr[ChNum]];
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ChPtr[ChNum]++;
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break;
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case 5:
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printf("AC: %d\n",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter=
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buffer[ChPtr[ChNum]]<<4;
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ChPtr[ChNum]++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter+=
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buffer[ChPtr[ChNum]];
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ChPtr[ChNum]++;
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break;
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case 8:
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printf("AC: %d\n",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Delay=buffer[ChPtr[ChNum]];
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ChPtr[ChNum]++;
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memcpy(&tmp,&buffer[ChPtr[ChNum]],2);
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if (tmp<0) {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number++;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter=-tmp;
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} else {
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter=tmp;
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}
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ChPtr[ChNum]+=2;
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break;
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case 9:
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printf("AC: %d\n",initial);
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Number=0xb;
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patterns[PatNum].Items[LnNum].Channel[ChNum].Additional_Command.Parameter=buffer[ChPtr[ChNum]];
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ChPtr[ChNum]++;
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break;
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case 0: /* do nothing? */
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break;
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default:
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printf("Unknown Additional Command %d!\n",initial);
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break;
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}
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SkipCounter[ChNum]=Skip[ChNum];
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}
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//TPattern = record
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// Length:integer;
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// Items:array[0..MaxPatLen-1] of record
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// Noise:byte;
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// Envelope:word;
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// Channel:array[0..2]of TChannelLine;
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// end;
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// end;
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//TChannelLine = packed record
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// Note:shortint; {0..95} {-2 - Sound off (R--)} {-1 - No note (---)}
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// Sample:byte; {0..31}
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// Ornament:byte; {0..15}
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// Volume:shortint; {1-15 - vol, 0 - prev vol}
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// Envelope:byte; {1-14 - R13, 15 - Envelope off, 0 - prev}
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// Additional_Command:TAdditionalCommand;
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// end;
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// ChPtr:packed array[0..2] of word;
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// Skip:array[0..2] of byte;
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// SkipCounter:array[0..2] of byte;
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// PrevOrn:array[0..2] of byte;
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// NsBase:integer;
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// TS:integer;
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#define MAXPATLEN 256
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void DecodePattern(int j, int jj) {
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int i,k,quit,NsBase;
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for(k=0;k<3;k++) {
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PrevOrn[k] = 0;
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SkipCounter[k] = 1;
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Skip[k] = 1;
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}
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memcpy( ChPtr, &buffer[pt3_pat_ptr+jj*6],6);
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printf("\tCopying 6 bytes at %x\n",pt3_pat_ptr+(jj*6));
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NsBase = 0;
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i = 0;
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quit = 0;
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while ((i < MAXPATLEN) && (!quit)) {
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for(k=0;k<3;k++) {
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SkipCounter[k]--;
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if (SkipCounter[k]==0) {
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if ((k == 0) && (buffer[ChPtr[0]]== 0)) {
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i--;
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quit = 1;
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break;
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}
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PatternInterpreter(j,i,k);
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}
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}
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patterns[j].Items[i].Noise = NsBase;
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i++;
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}
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patterns[j].length = i;
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printf("\tPattern: %d long\n",i);
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}
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int FoundPT36TS(void) {
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#if 0
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function FoundPT36TS:boolean;
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var
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j1,j2,k,Pos:Integer;
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begin
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Result := False;
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if PT3.PT3_Name[13] <> '6' then exit;
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Pos := 0;
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while (Pos < 256) and (PT3.Index[Pos + $c9] <> 255) do
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begin
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j1 := PT3.Index[Pos + $c9] div 3;
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if j1 < $30/2 then exit;
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j2 := $30 - j1 - 1;
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move(PT3.Index[PT3.PT3_PatternsPointer + j2*6],ChPtr,6);
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for k := 0 to 2 do
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if (ChPtr[k] < 100) or (ChPtr[k] >= FSize - 4) then exit;
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Inc(Pos);
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end;
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if MessageDlg('This PT 3.6 module can contain Turbo Sound data. Try to import?',
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mtConfirmation, [mbYes, mbNo], 0) <> mrYes then exit;
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TS := $30;
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Result := True;
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end;
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#endif
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return 1;
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}
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int main(int argc, char **argv) {
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int i;
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int fd,result;
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char pt3_name[100];
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char pt3_table,pt3_delay,pt3_numpos,pt3_looppos;
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short pt3_sample_ptrs[32];
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short pt3_ornament_ptrs[16];
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int found_pt36=0;
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char *filename="mockingbird.pt3";
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fd=open(filename,O_RDONLY);
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if (fd<0) {
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fprintf(stderr,"Error opening %s: %s\n",filename,strerror(errno));
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return -1;
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}
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result=read(fd,buffer,8192);
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close(fd);
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printf("Read %d bytes ($%04x) from %s\n",result,result,filename);
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/* get name, 98 bytes long? */
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/* Contains version info, name of song, and author name */
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memcpy(pt3_name,(char *)buffer,98);
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/* Get various paramaters that follow */
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pt3_table=buffer[99];
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pt3_delay=buffer[100];
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pt3_numpos=buffer[101];
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pt3_looppos=buffer[102];
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pt3_pat_ptr=buffer[103]|buffer[104]<<8;
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/* Load in the 32 sample pointers */
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for(i=0;i<32;i++) {
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pt3_sample_ptrs[i]=buffer[105+(2*i)]|buffer[106+(2*i)]<<8;
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}
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/* Load in the 16 ornament pointers */
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for(i=0;i<16;i++) {
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pt3_ornament_ptrs[i]=buffer[169+(2*i)]|buffer[170+(2*i)]<<8;
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}
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printf("PT3:\n");
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pt3_name[29]='\n';
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pt3_name[30]='\t';
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printf("\t%s\n",pt3_name);
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printf("\tTable: $%02x\n",pt3_table);
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printf("\tDelay: $%02x\n",pt3_delay);
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printf("\tNumPos: $%02x\n",pt3_numpos);
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printf("\tLoopPos: $%02x\n",pt3_looppos);
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printf("\tPatPtr: $%04x\n",pt3_pat_ptr);
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printf("\tSmplPtr:");
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for(i=0;i<32;i++) {
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if (i%8==0) printf("\n\t\t");
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printf(" $%04x",pt3_sample_ptrs[i]);
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}
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printf("\n");
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printf("\tOrnamentPtr:");
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for(i=0;i<16;i++) {
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if (i%8==0) printf("\n\t\t");
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printf(" $%04x",pt3_ornament_ptrs[i]);
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}
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printf("\n");
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// File Format:
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// 00..1e ( 0.. 30) = "ProTracker 3.4 compilation of " or similar
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// 1f..3e ( 31.. 63) = Title
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// = " by "
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// 43..62 ( ) = Author
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// 63 ( 99) = Table
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// 64 ( 100) = Delay
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// 65 ( 101) = NumPos
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// 66 ( 102) = LoopPos
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// 67..68 (103..104) = PatPtr
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// (105..168) 32 Sample Pointer
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// (169..200) 16 Ornament Pointers
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// C9
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//function PT32VTM;
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//var
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// ChPtr:packed array[0..2] of word;
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// Skip:array[0..2] of byte;
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// SkipCounter:array[0..2] of byte;
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// PrevOrn:array[0..2] of byte;
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// NsBase:integer;
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// TS:integer;
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//var
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// i,j,k,kk,Pos:Integer;
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// tset:boolean;
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//begin
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//Result := True;
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//if DetectFeaturesLevel then
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// begin
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// if StrLComp(@PT3.PT3_Name,'ProTracker 3.',13) = 0 then
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// case Ord(PT3.PT3_Name[13]) of
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// $30..$35: VTM1.FeaturesLevel := 0;
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// $37..$39: VTM1.FeaturesLevel := 2;
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// else VTM1.FeaturesLevel := 1;
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// end
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// else if StrLComp(@PT3.PT3_Name,'Vortex Tracker II',17) = 0 then
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// VTM1.FeaturesLevel := 1
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// else
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// VTM1.FeaturesLevel := 0;
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// end;
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//if DetectModuleHeader then
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// VTM1.VortexModule_Header := StrLComp(@PT3.PT3_Name,'ProTracker 3.',13) <> 0;
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// Title
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//SetLength(VTM1.Title,32);
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//Move(PT3.PT3_Name[$1e],VTM1.Title[1],32);
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// VTM1.Title := TrimRight(VTM1.Title);
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// Author
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//SetLength(VTM1.Author,32);
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// Move(PT3.PT3_Name[$42],VTM1.Author[1],32);
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// VTM1.Author := TrimRight(VTM1.Author);
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// Table
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// VTM1.Ton_Table := PT3.PT3_Table;
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// Delay
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// VTM1.Initial_Delay := PT3.PT3_Delay;
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// LoopPos
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// VTM1.Positions.Loop := PT3.PT3_LoopPosition;
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// for i := 0 to 255 do
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// VTM1.Positions.Value[i] := 0;
|
|
// OrnamentPtrs
|
|
// VTM1.Ornaments[0] := nil;
|
|
// for i := 1 to 15 do
|
|
// begin
|
|
// if PT3.PT3_OrnamentPointers[i] = 0 then
|
|
// VTM1.Ornaments[i] := nil
|
|
// else
|
|
// begin
|
|
// New(VTM1.Ornaments[i]);
|
|
// VTM1.Ornaments[i].Loop := PT3.Index[PT3.PT3_OrnamentPointers[i]];
|
|
// VTM1.Ornaments[i].Length := PT3.Index[PT3.PT3_OrnamentPointers[i] + 1];
|
|
// for j := 0 to VTM1.Ornaments[i].Length - 1 do
|
|
// VTM1.Ornaments[i].Items[j] := PT3.Index[PT3.PT3_OrnamentPointers[i] + 2 + j];
|
|
// end;
|
|
// end;
|
|
|
|
// SamplePtrs
|
|
// for i := 1 to 31 do
|
|
// begin
|
|
// if PT3.PT3_SamplePointers[i]=0 then
|
|
// VTM1.Samples[i] := nil
|
|
// else
|
|
// begin
|
|
// New(VTM1.Samples[i]);
|
|
// VTM1.Samples[i].Loop := PT3.Index[PT3.PT3_SamplePointers[i]];
|
|
// VTM1.Samples[i].Length := PT3.Index[PT3.PT3_SamplePointers[i] + 1];
|
|
// for j := 0 to VTM1.Samples[i].Length - 1 do
|
|
// begin
|
|
// VTM1.Samples[i].Items[j].Add_to_Ton :=
|
|
// WordPtr(@PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 4])^;
|
|
// VTM1.Samples[i].Items[j].Ton_Accumulation :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 3] and $40 <> 0;
|
|
// VTM1.Samples[i].Items[j].Amplitude :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 3] and $f;
|
|
// VTM1.Samples[i].Items[j].Amplitude_Sliding :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 2] and $80 <> 0;
|
|
// VTM1.Samples[i].Items[j].Amplitude_Slide_Up :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 2] and $40 <> 0;
|
|
// VTM1.Samples[i].Items[j].Envelope_Enabled :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 2] and 1 = 0;
|
|
// VTM1.Samples[i].Items[j].Envelope_or_Noise_Accumulation :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 3] and $20 <> 0;
|
|
// VTM1.Samples[i].Items[j].Add_to_Envelope_or_Noise :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 2] shr 1;
|
|
// if VTM1.Samples[i].Items[j].Add_to_Envelope_or_Noise and $10 <> 0 then
|
|
// VTM1.Samples[i].Items[j].Add_to_Envelope_or_Noise :=
|
|
// VTM1.Samples[i].Items[j].Add_to_Envelope_or_Noise or shortint($f0)
|
|
// else
|
|
// VTM1.Samples[i].Items[j].Add_to_Envelope_or_Noise :=
|
|
// VTM1.Samples[i].Items[j].Add_to_Envelope_or_Noise and 15;
|
|
// VTM1.Samples[i].Items[j].Mixer_Ton :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 3] and $10 = 0;
|
|
// VTM1.Samples[i].Items[j].Mixer_Noise :=
|
|
// PT3.Index[PT3.PT3_SamplePointers[i] + j*4 + 3] and $80 = 0
|
|
// end
|
|
// end
|
|
// end;
|
|
|
|
|
|
//for i := 0 to MaxPatNum do
|
|
// VTM1.Patterns[i] := nil;
|
|
|
|
//VTM2 := nil; TS := Byte(PT3.PT3_Name[98]);
|
|
|
|
if ((pt3_table!=0x20)) {
|
|
if ((buffer[13]>='7') && (buffer[13]<='9')) {
|
|
printf("Special case if PT3.6 or later\n");
|
|
}
|
|
if (found_pt36) {
|
|
printf("Special case if PT3.6 or later\n");
|
|
}
|
|
|
|
//if ((TS <> $20) and (PT3.PT3_Name[13] in ['7'..'9'])) or FoundPT36TS then
|
|
// begin
|
|
// New(VTM2);
|
|
// VTM2^ := VTM1^;
|
|
// New(VTM2.Patterns[-1]);
|
|
// VTM2.Patterns[-1]^ := VTM1.Patterns[-1]^;
|
|
// for i := 1 to 15 do
|
|
// if VTM1.Ornaments[i] <> nil then
|
|
// begin
|
|
// New(VTM2.Ornaments[i]);
|
|
// VTM2.Ornaments[i]^ := VTM1.Ornaments[i]^;
|
|
// end;
|
|
// for i := 1 to 31 do
|
|
// if VTM1.Samples[i] <> nil then
|
|
// begin
|
|
// New(VTM2.Samples[i]);
|
|
// VTM2.Samples[i]^ := VTM1.Samples[i]^;
|
|
// end;
|
|
// end;
|
|
}
|
|
|
|
int pos,j;
|
|
|
|
pos=0;
|
|
|
|
while((pos<256) && (buffer[pos+0xc9]!=255)) {
|
|
|
|
j = buffer[pos + 0xc9] / 3;
|
|
|
|
// if newer j=TS-j-1?
|
|
printf("Positions[%d]=%d\n",pos,j);
|
|
pos++;
|
|
#if 0
|
|
|
|
if VTM2 <> nil then {
|
|
DecodePattern(VTM2,j,j);
|
|
DecodePattern(VTM1,j,TS - j - 1);
|
|
for i := 0 to MaxPatLen - 1 do {
|
|
tset := False;
|
|
for k := 2 downto 0 do
|
|
if VTM2.Patterns[j].Items[i].Channel[k].Additional_Command.Number = 11 then {
|
|
for kk := 2 downto 0 do
|
|
if VTM1.Patterns[j].Items[i].Channel[kk].Additional_Command.Number in [0,11] then {
|
|
VTM1.Patterns[j].Items[i].Channel[kk].Additional_Command :=
|
|
VTM2.Patterns[j].Items[i].Channel[k].Additional_Command;
|
|
break;
|
|
};
|
|
tset := True;
|
|
break;
|
|
};
|
|
if not tset then for k := 2 downto 0 do
|
|
if VTM1.Patterns[j].Items[i].Channel[k].Additional_Command.Number = 11 then {
|
|
for kk := 2 downto 0 do
|
|
if VTM2.Patterns[j].Items[i].Channel[kk].Additional_Command.Number = 0 then {
|
|
VTM2.Patterns[j].Items[i].Channel[kk].Additional_Command :=
|
|
VTM1.Patterns[j].Items[i].Channel[k].Additional_Command;
|
|
break;
|
|
};
|
|
break;
|
|
};
|
|
}
|
|
}
|
|
else {
|
|
#endif
|
|
DecodePattern(j,j);
|
|
#if 0
|
|
}
|
|
#endif
|
|
}
|
|
// VTM1.Positions.Length := Pos;
|
|
// if VTM2 <> nil then VTM2.Positions.Length := Pos;
|
|
|
|
return 0;
|
|
}
|