apps/plugins/rockboy/rbsound.c

   1 #include "rockmacros.h"
   2 #include "defs.h"
   3 #include "pcm.h"
   4
   5 struct pcm pcm IBSS_ATTR;
   6
   7 #define N_BUFS 2
   8 #define BUF_SIZE 2048
   9
  10 #if CONFIG_CODEC == SWCODEC
  11
  12 bool doneplay=1;
  13 bool bufnum=0;
  14
  15 static unsigned short *buf=0, *hwbuf=0;
  16
  17 static bool newly_started;
  18
  19 static void get_more(unsigned char** start, size_t* size)
  20 {
  21     memcpy(hwbuf, &buf[pcm.len*doneplay], BUF_SIZE*sizeof(short));
  22     *start = (unsigned char*)(hwbuf);
  23     *size = BUF_SIZE*sizeof(short);
  24     doneplay=1;
  25 }
  26
  27 void pcm_init(void)
  28 {
  29     if(plugbuf)
  30         return;
  31
  32     newly_started = true;
  33
  34 #if defined(HW_HAVE_11) && !defined(TOSHIBA_GIGABEAT_F)
  35     pcm.hz = SAMPR_11;
  36 #else
  37     pcm.hz = SAMPR_44;
  38 #endif
  39
  40     pcm.stereo = 1;
  41
  42     pcm.len = BUF_SIZE;
  43     if(!buf)
  44     {
  45         buf = my_malloc(pcm.len * N_BUFS *sizeof(short));
  46         hwbuf = my_malloc(pcm.len *sizeof(short));
  47
  48         pcm.buf = buf;
  49         pcm.pos = 0;
  50         memset(buf, 0,  pcm.len * N_BUFS*sizeof(short));
  51     }
  52
  53     rb->pcm_play_stop();
  54
  55 #if INPUT_SRC_CAPS != 0
  56     /* Select playback */
  57     rb->audio_set_input_source(AUDIO_SRC_PLAYBACK, SRCF_PLAYBACK);
  58     rb->audio_set_output_source(AUDIO_SRC_PLAYBACK);
  59 #endif
  60
  61     rb->pcm_set_frequency(pcm.hz); /* 44100 22050 11025 */
  62 }
  63
  64 void pcm_close(void)
  65 {
  66     memset(&pcm, 0, sizeof pcm);
  67     newly_started = true;
  68     rb->pcm_play_stop();
  69     rb->pcm_set_frequency(HW_SAMPR_DEFAULT);
  70 }
  71
  72 int pcm_submit(void)
  73 {
  74     if (!pcm.buf) return 0;
  75     if (pcm.pos < pcm.len) return 1;
  76
  77     if(newly_started)
  78     {
  79         rb->pcm_play_data(&get_more,NULL,0);
  80         newly_started = false;
  81     }
  82
  83     while (!doneplay)
  84     {rb->yield();}
  85
  86     doneplay=0;
  87
  88     pcm.pos = 0;
  89     return 1;
  90 }
  91
  92 #else
  93
  94 void pcm_init(void)
  95 {
  96     pcm.hz = 44100;
  97     pcm.stereo = 1;
  98     pcm.buf = NULL;
  99     pcm.len = 0;
 100     pcm.pos = 0;
 101 }
 102
 103 void pcm_close(void)
 104 {
 105     memset(&pcm, 0, sizeof pcm);
 106 }
 107
 108 int pcm_submit(void)
 109 {
 110     pcm.pos =0;
 111     return 0;
 112 }
 113
 114 #endif