97 lines
2.1 KiB
C
97 lines
2.1 KiB
C
#include "wavfile.h"
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#define SND_MSGUNDER
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#define SND_S32
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#include "alsasnd.h"
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#undef SND_S32
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#include "alsasnd.h"
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typedef struct {
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aud_handle16 ihandle;
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aud_handle32 lhandle;
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uint32_t samplerate;
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bool iswav;
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bool iswide;
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} aud_handle;
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bool aud_open_dev(aud_handle *dev, const char *devname, uint32_t samplerate, uint8_t channels, uint32_t frames, uint32_t bufsize, bool wide) {
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if(wide) {
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int state = aud_open_dev32(&dev->lhandle, devname, samplerate, channels, frames, bufsize);
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if(state == 2) {
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wide = false;
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mid_log(STR_AUD_FMTCH"\n", devname, 32, 16);
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state = aud_open_dev16(&dev->ihandle, devname, samplerate, channels, frames, bufsize);
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if(state == 2) {
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mid_log(STR_AUD_FMTERR"\n", devname);
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return false;
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}
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else if(state != 0) {
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return false;
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}
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}
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else if(state != 0) {
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return false;
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}
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}
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else {
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int state = aud_open_dev16(&dev->ihandle, devname, samplerate, channels, frames, bufsize);
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if(state == 2) {
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wide = true;
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mid_log(STR_AUD_FMTCH"\n", devname, 16, 32);
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state = aud_open_dev32(&dev->lhandle, devname, samplerate, channels, frames, bufsize);
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if(state == 2) {
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mid_log(STR_AUD_FMTERR"\n", devname);
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return false;
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}
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else if(state != 0) {
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return false;
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}
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}
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else if(state != 0) {
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return false;
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}
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}
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if(wide) {
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dev->samplerate = dev->lhandle.samplerate;
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dev->iswav = dev->lhandle.wav.buffer != NULL;
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}
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else {
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dev->samplerate = dev->ihandle.samplerate;
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dev->iswav = dev->ihandle.wav.buffer != NULL;
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}
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dev->iswide = wide;
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return true;
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}
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void aud_push(aud_handle *dev, int16_t *data) {
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if(dev->iswide) {
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int32_t conv[dev->lhandle.channels];
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for(int h = 0; h < dev->lhandle.channels; h++) {
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conv[h] = ((int32_t)data[h]) << 16;
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}
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aud_push32(&dev->lhandle, conv);
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}
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else {
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aud_push16(&dev->ihandle, data);
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}
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}
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void aud_flush(aud_handle *dev) {
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if(dev->iswide) {
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aud_flush32(&dev->lhandle);
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}
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else {
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aud_flush16(&dev->ihandle);
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}
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}
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void aud_close(aud_handle *dev) {
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if(dev->iswide) {
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aud_close32(&dev->lhandle);
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}
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else {
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aud_close16(&dev->ihandle);
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}
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}
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