FreeCalypso > hg > freecalypso-tools

annotate target-utils/buzplayer/melentry.c @ 823:9092ff68e37d

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buzplayer: implement PWT mode melody entry
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 30 May 2021 04:42:05 +0000
parents eb5960dc258c
children
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1 #include <sys/types.h>
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2 #include <ctype.h>
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3 #include <stdlib.h>
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4 #include "types.h"
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5 #include "melody.h"
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6
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7 extern struct melentry *melody_buf_start, *melody_buf_tailptr;
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8 extern int melody_mode;
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9
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10 void
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11 melody_init()
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12 {
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13 melody_buf_tailptr = melody_buf_start;
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14 melody_mode = 1;
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15 pwt_off();
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16 }
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17
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18 void
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19 melody_init_pwt()
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20 {
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21 melody_buf_tailptr = melody_buf_start;
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22 melody_mode = 2;
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23 pwt_on();
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24 }
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25
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26 void
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27 melody_entry(argbulk)
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28 char *argbulk;
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29 {
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30 char *argv[3];
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31 u32 tone, dur;
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32
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33 if (melody_mode != 1) {
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34 printf("ERROR: wrong mode for melody entry\n");
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35 return;
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36 }
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37 if (parse_args(argbulk, 2, 2, argv, 0) < 0)
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38 return;
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39 tone = strtoul(argv[0], 0, 0);
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40 dur = strtoul(argv[1], 0, 0);
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41 if (tone > 255 || dur < 1 || dur > 0xFFFF) {
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42 printf("ERROR: argument(s) out of range\n");
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43 return;
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44 }
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45 melody_buf_tailptr->tone = tone;
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46 melody_buf_tailptr->dur = dur;
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47 melody_buf_tailptr++;
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48 }
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49
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50 void
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51 pwt_entry_note(argbulk)
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52 char *argbulk;
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53 {
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54 char *argv[4];
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55 u32 tone, vol, dur;
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56
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57 if (melody_mode != 2) {
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58 printf("ERROR: wrong mode for melody entry\n");
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59 return;
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60 }
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61 if (parse_args(argbulk, 3, 3, argv, 0) < 0)
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62 return;
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63 tone = strtoul(argv[0], 0, 0);
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64 vol = strtoul(argv[1], 0, 0);
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65 dur = strtoul(argv[2], 0, 0);
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66 if (tone > 47 || vol > 63 || dur < 1 || dur > 0xFFFF) {
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67 printf("ERROR: argument(s) out of range\n");
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68 return;
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69 }
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70 melody_buf_tailptr->tone = tone;
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71 melody_buf_tailptr->vol = (vol << 1) | 1;
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72 melody_buf_tailptr->dur = dur;
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73 melody_buf_tailptr++;
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74 }
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75
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76 void
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77 pwt_entry_rest(argbulk)
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78 char *argbulk;
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79 {
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80 char *argv[2];
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81 u32 dur;
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82
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83 if (melody_mode != 2) {
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84 printf("ERROR: wrong mode for melody entry\n");
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85 return;
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86 }
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87 if (parse_args(argbulk, 1, 1, argv, 0) < 0)
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88 return;
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89 dur = strtoul(argv[0], 0, 0);
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90 if (dur < 1 || dur > 0xFFFF) {
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91 printf("ERROR: argument out of range\n");
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92 return;
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93 }
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94 melody_buf_tailptr->tone = 0;
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95 melody_buf_tailptr->vol = 0;
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96 melody_buf_tailptr->dur = dur;
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97 melody_buf_tailptr++;
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98 }