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#include "rockmacros.h"
#include "defs.h"
#include "pcm.h"
struct pcm pcm IBSS_ATTR;
#define N_BUFS 2
#define BUF_SIZE 2048
#if CONFIG_CODEC == SWCODEC
bool doneplay=1;
bool bufnum=0;
static unsigned short *buf=0, *hwbuf=0;
static bool newly_started;
static void get_more(unsigned char** start, size_t* size)
{
memcpy(hwbuf, &buf[pcm.len*doneplay], BUF_SIZE*sizeof(short));
*start = (unsigned char*)(hwbuf);
*size = BUF_SIZE*sizeof(short);
doneplay=1;
}
void pcm_init(void)
{
if(plugbuf)
return;
newly_started = true;
#if defined(HW_HAVE_11) && !defined(TOSHIBA_GIGABEAT_F)
pcm.hz = SAMPR_11;
#else
pcm.hz = SAMPR_44;
#endif
pcm.stereo = 1;
pcm.len = BUF_SIZE;
if(!buf)
{
buf = my_malloc(pcm.len * N_BUFS *sizeof(short));
hwbuf = my_malloc(pcm.len *sizeof(short));
pcm.buf = buf;
pcm.pos = 0;
memset(buf, 0, pcm.len * N_BUFS*sizeof(short));
}
rb->pcm_play_stop();
#if INPUT_SRC_CAPS != 0
/* Select playback */
rb->audio_set_input_source(AUDIO_SRC_PLAYBACK, SRCF_PLAYBACK);
rb->audio_set_output_source(AUDIO_SRC_PLAYBACK);
#endif
rb->pcm_set_frequency(pcm.hz); /* 44100 22050 11025 */
}
void pcm_close(void)
{
memset(&pcm, 0, sizeof pcm);
newly_started = true;
rb->pcm_play_stop();
rb->pcm_set_frequency(HW_SAMPR_DEFAULT);
}
int pcm_submit(void)
{
if (!pcm.buf) return 0;
if (pcm.pos < pcm.len) return 1;
if(newly_started)
{
rb->pcm_play_data(&get_more,NULL,0);
newly_started = false;
}
while (!doneplay)
{rb->yield();}
doneplay=0;
pcm.pos = 0;
return 1;
}
#else
void pcm_init(void)
{
pcm.hz = 44100;
pcm.stereo = 1;
pcm.buf = NULL;
pcm.len = 0;
pcm.pos = 0;
}
void pcm_close(void)
{
memset(&pcm, 0, sizeof pcm);
}
int pcm_submit(void)
{
pcm.pos =0;
return 0;
}
#endif
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