pineapple.h

   1 #include <stdint.h>
   2
   3 #ifndef PINEAPPLE_H
   4 #define PINEAPPLE_H
   5 #define TRACKLEN 32
   6
   7 typedef uint8_t u8;
   8 typedef uint16_t u16;
   9 typedef uint32_t u32;
  10
  11 typedef int8_t s8;
  12 typedef int16_t s16;
  13 typedef int32_t s32;
  14
  15 u8 callbacktime;
  16 char filename[1024];
  17 char *infinitemsg;
  18 char comment[1024];
  19
  20 /* MODES */
  21 enum {
  22         PM_NORMAL,
  23         PM_VISUAL,
  24         PM_VISUALLINE,
  25         PM_CMDLINE,
  26         PM_INSERT,
  27         PM_JAMMER
  28 };
  29 void normalmode(int c);
  30 void cmdlinemode(void);
  31 void insertmode(void);
  32 void jammermode(void);
  33 void visualmode(void);
  34 void visuallinemode(void);
  35
  36 typedef enum {
  37         WF_TRI = 0,
  38         WF_SAW,
  39         WF_PUL,
  40         WF_NOI,
  41         WF_SINE
  42 } waveform_t;
  43
  44 volatile struct oscillator {
  45         u16     freq;
  46         u16     phase;
  47         u16     duty;
  48         waveform_t waveform;
  49         u8 volume;      // 0-255
  50 } osc[4];
  51
  52 struct trackline {
  53         u8      note;
  54         u8      instr;
  55         u8      cmd[2];
  56         u8      param[2];
  57 };
  58
  59 struct track {
  60         struct trackline        line[TRACKLEN];
  61 };
  62
  63 struct instrline {
  64         u8                      cmd;
  65         u8                      param;
  66 };
  67
  68 struct instrument {
  69         int                     length;
  70         struct instrline        line[256];
  71 };
  72
  73 struct songline {
  74         u8                      track[4];
  75         u8                      transp[4];
  76 };
  77
  78 struct instrument instrument[256], iclip[256];
  79 struct track track[256], tclip[256];
  80 struct songline song[256];
  81
  82 //int songlen;
  83 int tracklen;
  84
  85 void initchip(void);
  86 u8 interrupthandler(void);
  87
  88 void readsong(int pos, int ch, u8 *dest);
  89 void readtrack(int num, int pos, struct trackline *tl);
  90 void readinstr(int num, int pos, u8 *il);
  91
  92 void silence(void);
  93 void iedplonk(int, int);
  94
  95 void initgui(void);
  96 void eventloop(void);
  97
  98 void display(void);
  99
 100 int hexdigit(char c);
 101 int nextfreetrack(void);
 102 int nextfreeinstr(void);
 103
 104 void startplaysong(int);
 105 void startplaytrack(int);
 106
 107 void parsecmd(char cmd[]);
 108
 109 // just some poorly-named variables for hackin together the repeat command
 110 int cmdrepeat;
 111 int cmdrepeatnum;
 112 int lastaction;
 113 int lastrepeatnum;
 114
 115 /* lines to be highlighted in visual line mode */
 116 int highlight_firstline, highlight_lastline, highlight_lineamount;
 117
 118 /* lines to be highlighted in visual mode */
 119 int highlight_firstx, highlight_firsty, highlight_lasty, highlight_lastx;
 120
 121 /* ACTIONS */
 122 void act_bigmvdown(void);
 123 void act_bigmvup(void);
 124 void act_mvbottom(void);
 125 void act_mvtop(void);
 126 void act_clritall(void);
 127 void act_clronething(void);
 128 void act_clrinsongtab(int y);
 129 void act_clrintracktab(int t, int y);
 130 void act_clrininstrtab(int instr, int y);
 131 void act_fxdec(void);
 132 void act_fxinc(void);
 133 void act_instrdec(void);
 134 void act_instrinc(void);
 135 void act_mvdown(void);
 136 void act_mvleft(void);
 137 void act_mvright(void);
 138 void act_mvup(void);
 139 void act_notedec(void);
 140 void act_noteinc(void);
 141 void act_octavedec(void);
 142 void act_octaveinc(void);
 143 void act_paramdec(void);
 144 void act_paraminc(void);
 145 void act_trackdec(void);
 146 void act_trackinc(void);
 147 void act_transpdec(void);
 148 void act_transpinc(void);
 149 void act_undo(void);
 150 void act_viewinstrdec(void);
 151 void act_viewinstrinc(void);
 152 void act_viewtrackdec(void);
 153 void act_viewtrackinc(void);
 154 void act_addline(void);
 155 void act_delline(void);
 156
 157 /*u8 trackpos;
 158 u8 songpos;
 159 int songlen;*/
 160 int playtrack;
 161 int playsong;
 162
 163 struct config_params {
 164         int buffersize;
 165         char *gui;
 166         char *audio_driver;
 167         int samplefreq;
 168 };
 169
 170 /*audio functions*/
 171
 172 void lftSdlCallback(void *userdata, u8 *buf, int len);
 173 u8 (*audioInit)(void); //function that changes depending on which audiodriver is specified
 174 u8 sdl_init(void);
 175 void (*sdlCallback)(void); //function that changes depending on which type of file is loaded
 176 //void hvlSdlCallBack(struct hvl_tune *ht, uint8 *stream, int length);
 177
 178 typedef struct _pineapple_tune {
 179         char *type; //.pt, .mod, .hvl, .ahx
 180
 181         char *filename;
 182         u8 callbacktime; //ht_SpeedMultiplier
 183         u16 tempo; //ht_Tempo
 184         char *comment;
 185         struct oscillator osc[4];
 186         struct instrument instr[256]; //struct hvl_instrument *ht_Instruments
 187         struct track trk[256]; //struct hvl_step ht_Tracks[256][64]
 188         struct songline sng[256]; //struct hvl_position *ht_Positions
 189         int songlen; //ht_PositionNr
 190         int songpos; //ht_PosNr
 191         int trackpos;
 192         int tracklen; //ht_TrackLength
 193         int trackNum; //number of tracks that are used, ht_TrackNr
 194         int instrx, instry, instroffs;
 195         int songx, songy, songoffs;
 196         int trackx, tracky, trackoffs;
 197         int currtrack, currinstr;
 198         int currtab;
 199         int saved;
 200 } pineapple_tune;
 201
 202 pineapple_tune *tune;
 203
 204
 205 #endif /* PINEAPPLE_H */