hively/main.c

   1 //just gonna see if i can display a hively position list and all the hively tracks and make it scroll
   2
   3 #include <stdio.h>
   4 #include <stdint.h>
   5 #include <stdlib.h>
   6 #include <ncurses.h>
   7 #include <SDL/SDL.h>
   8 #include "hvl_replay.h"
   9
  10 #include "pineapple.h"
  11 #include "gui.h"
  12
  13 #define FREQ 48000
  14 #define HIVELY_LEN FREQ/50
  15 #define OUTPUT_LEN 4096
  16
  17 int16 hivelyLeft[HIVELY_LEN], hivelyRight[HIVELY_LEN];
  18 size_t hivelyIndex;
  19
  20 void mix_and_play( struct hvl_tune *ht, uint8 *stream, int length );
  21
  22 BOOL init( void )
  23 {
  24         //uint32 i;
  25         SDL_AudioSpec wanted;
  26
  27         if(SDL_Init(SDL_INIT_AUDIO)< 0) {
  28                 printf("Could not initialize SDL: %s\n", SDL_GetError());
  29                 SDL_Quit();
  30                 return FALSE;
  31         }
  32
  33         wanted.freq = FREQ;
  34         wanted.format = AUDIO_S16SYS;
  35         wanted.channels = 2; /* 1 = mono, 2 = stereo */
  36         wanted.samples = OUTPUT_LEN; // HIVELY_LEN;
  37
  38         wanted.callback = (void*) mix_and_play;
  39         wanted.userdata = tune;
  40
  41         if(SDL_OpenAudio(&wanted, NULL) < 0) {
  42                 printf("Failed to open audio device.\n");
  43                 SDL_Quit();
  44                 return FALSE;
  45         }
  46
  47         return TRUE;
  48 }
  49
  50 void mix_and_play( struct hvl_tune *ht, uint8 *stream, int length )
  51 {
  52         int16 *out;
  53         int i;
  54         size_t streamPos = 0;
  55         length = length >> 1;
  56
  57         uint32 samples;
  58         samples = tune->ht_Frequency/50/ht->ht_SpeedMultiplier;
  59
  60         if(tune && play) {
  61                 // Mix to 16bit interleaved stereo
  62                 out = (int16*) stream;
  63                 // Flush remains of previous frame
  64                 for(i = hivelyIndex; i < (HIVELY_LEN); i++) {
  65                         out[streamPos++] = hivelyLeft[i];
  66                         out[streamPos++] = hivelyRight[i];
  67                 }
  68
  69                 while(streamPos < length) {
  70                         hvl_DecodeFrame( tune, (int8 *) hivelyLeft, (int8 *) hivelyRight, 2 );
  71                         for(i = 0; i < (HIVELY_LEN) && streamPos < length; i++) {
  72                                 out[streamPos++] = hivelyLeft[i];
  73                                 out[streamPos++] = hivelyRight[i];
  74                         }
  75                 }
  76                 hivelyIndex = i;
  77         } else if(tune && plonked) {
  78                 // Mix to 16bit interleaved stereo
  79                 out = (int16*) stream;
  80                 // Flush remains of previous frame
  81                 for(i = hivelyIndex; i < (HIVELY_LEN); i++) {
  82                         out[streamPos++] = hivelyLeft[i];
  83                         out[streamPos++] = hivelyRight[i];
  84                 }
  85
  86                 while(streamPos < length) {
  87                         hvl_playNote( tune, (int8 *) hivelyLeft, (int8 *) hivelyRight, 2, &tune->ht_Voices[0]);
  88                         for(i = 0; i < (HIVELY_LEN) && streamPos < length; i++) {
  89                                 out[streamPos++] = hivelyLeft[i];
  90                                 out[streamPos++] = hivelyRight[i];
  91                         }
  92                 }
  93                 hivelyIndex = i;
  94         }
  95 }
  96
  97 int main(int argc, char *argv[])
  98 {
  99         hivelyIndex = HIVELY_LEN;
 100         if(argc < 2){
 101                 printf( "Usage: play_hvl <tune>\n" );
 102                 return 0;
 103         }
 104
 105         if(init()){
 106                 hvl_InitReplayer();
 107                 tune = hvl_LoadTune(argv[1], FREQ, 4);
 108                 if(tune){
 109                         //BOOL done;
 110                         //uint32 gotsigs;
 111
 112                         hvl_InitSubsong( tune, 0 );
 113                         initgui();
 114                         play = 0;
 115                         SDL_PauseAudio(0);
 116                         guiloop();
 117                 }
 118         }
 119
 120         SDL_PauseAudio(1);
 121         hvl_FreeTune(tune);
 122         SDL_Quit();
 123         return 0;
 124 }