git.mutantstargoat.com Git - dos_auplay/blob - src/main.c

   1 #include <stdio.h>\r
   2 #include <stdlib.h>\r
   3 #include <string.h>\r
   4 #include <dos.h>\r
   5 #include <conio.h>\r
   6 #include "aufile.h"\r
   7 #include "audio.h"\r
   8 \r
   9 #define DBG_PRELOAD\r
  10 \r
  11 static int play_file(const char *fname);\r
  12 static int cbfunc(void *buf, int size, void *cls);\r
  13 static void print_usage(const char *argv0);\r
  14 \r
  15 static int vol = 220;\r
  16 static int quit;\r
  17 \r
  18 int main(int argc, char **argv)\r
  19 {\r
  20         int i;\r
  21 \r
  22         if(audio_init() == -1) {\r
  23                 return 1;\r
  24         }\r
  25         audio_setvolume(AUDIO_MASTER, 255);\r
  26         audio_setvolume(AUDIO_PCM, 255);\r
  27 \r
  28         for(i=1; i<argc; i++) {\r
  29                 if(argv[i][0] == '-') {\r
  30                         if(strcmp(argv[i], "-h") == 0 || strcmp(argv[i], "-help") == 0) {\r
  31                                 print_usage(argv[0]);\r
  32                                 return 0;\r
  33                         } else {\r
  34                                 fprintf(stderr, "invalid option: %s\n", argv[i]);\r
  35                                 return 1;\r
  36                         }\r
  37                 } else {\r
  38                         play_file(argv[i]);\r
  39                         if(quit) break;\r
  40                 }\r
  41         }\r
  42         return 0;\r
  43 }\r
  44 \r
  45 static unsigned char *dbg_samples;\r
  46 static int dbg_cur_offs;\r
  47 \r
  48 static int play_file(const char *fname)\r
  49 {\r
  50         struct au_file *au;\r
  51         int paused = 0, muted = 0;\r
  52         unsigned long prev;\r
  53 \r
  54         if(!(au = au_open(fname))) {\r
  55                 return -1;\r
  56         }\r
  57 \r
  58         audio_set_callback(cbfunc, au);\r
  59 \r
  60 #ifdef DBG_PRELOAD\r
  61         if(!(dbg_samples = malloc(au->size))) {\r
  62                 perror("failed to preload samples into memory");\r
  63                 return -1;\r
  64         }\r
  65         dbg_cur_offs = 0;\r
  66         if(au_read(au, dbg_samples, au->size) < au->size) {\r
  67                 perror("failed to preload samples into memory");\r
  68                 return -1;\r
  69         }\r
  70 #endif\r
  71 \r
  72         audio_play(au->rate, au->bits, au->chan);\r
  73         while(audio_isplaying()) {\r
  74                 if(kbhit()) {\r
  75                         int c = getch();\r
  76                         switch(c) {\r
  77                         case 27:\r
  78                                 audio_stop();\r
  79                                 quit = 1;\r
  80                                 goto end;\r
  81 \r
  82                         case ' ':\r
  83                                 paused = !paused;\r
  84                                 if(paused) {\r
  85                                         audio_pause();\r
  86                                         printf("pause\n");\r
  87                                 } else {\r
  88                                         audio_resume();\r
  89                                         printf("resume\n");\r
  90                                 }\r
  91                                 break;\r
  92 \r
  93                         case '=':\r
  94                                 vol += 32;\r
  95                                 if(vol > 255) vol = 255;\r
  96                                 audio_setvolume(AUDIO_DEFAULT, vol);\r
  97                                 printf("volume: %d%%\n", 101 * vol / 256);\r
  98                                 break;\r
  99 \r
 100                         case '-':\r
 101                                 vol -= 32;\r
 102                                 if(vol < 0) vol = 0;\r
 103                                 audio_setvolume(AUDIO_DEFAULT, vol);\r
 104                                 printf("volume: %d%%\n", 101 * vol / 256);\r
 105                                 break;\r
 106 \r
 107                         case 'm':\r
 108                                 muted = !muted;\r
 109                                 if(muted) {\r
 110                                         audio_setvolume(AUDIO_DEFAULT, 0);\r
 111                                 } else {\r
 112                                         audio_setvolume(AUDIO_DEFAULT, vol);\r
 113                                 }\r
 114                                 break;\r
 115 \r
 116                         default:\r
 117                                 break;\r
 118                         }\r
 119                 }\r
 120 \r
 121                 _disable();\r
 122                 if(dbg_cur_offs != prev) {\r
 123                         prev = dbg_cur_offs;\r
 124                         _enable();\r
 125 \r
 126                         printf("%3d%% - offs: %lu/%lu\n", 100 * prev / au->size, prev, au->size);\r
 127                 } else {\r
 128                         _enable();\r
 129                 }\r
 130 \r
 131         }\r
 132 \r
 133 end:\r
 134         au_close(au);\r
 135 #ifdef DBG_PRELOAD\r
 136         free(dbg_samples);\r
 137 #endif\r
 138         return 0;\r
 139 }\r
 140 \r
 141 #ifdef DBG_PRELOAD\r
 142 static int cbfunc(void *buf, int size, void *cls)\r
 143 {\r
 144         struct au_file *au = cls;\r
 145 \r
 146         if(dbg_cur_offs + size > au->size) {\r
 147                 size = au->size - dbg_cur_offs;\r
 148         }\r
 149         if(size <= 0) return 0;\r
 150 \r
 151         memcpy(buf, dbg_samples + dbg_cur_offs, size);\r
 152         dbg_cur_offs += size;\r
 153         return size;\r
 154 }\r
 155 #else\r
 156 static int cbfunc(void *buf, int size, void *cls)\r
 157 {\r
 158         int rd;\r
 159 \r
 160         if((rd = au_read(cls, buf, size)) <= 0) {\r
 161                 return 0;\r
 162         }\r
 163         return rd;\r
 164 }\r
 165 #endif\r
 166 \r
 167 static void print_usage(const char *argv0)\r
 168 {\r
 169         printf("Usage: %s [options] <file1> <file2> ... <filen>\n", argv0);\r
 170         printf("options:\n");\r
 171         printf(" -h,-help: print usage and exit\n");\r
 172 }\r