mirror of
https://github.com/xemu-project/xemu.git
synced 2024-11-23 11:39:53 +00:00
0f9668e0c1
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20220323155743.1585078-33-marcandre.lureau@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
131 lines
3.1 KiB
C
131 lines
3.1 KiB
C
/* public domain */
|
|
|
|
#include "qemu/osdep.h"
|
|
|
|
#define AUDIO_CAP "win-int"
|
|
#include <windows.h>
|
|
#include <mmreg.h>
|
|
#include <mmsystem.h>
|
|
|
|
#include "audio.h"
|
|
#include "audio_int.h"
|
|
#include "audio_win_int.h"
|
|
|
|
int waveformat_from_audio_settings (WAVEFORMATEX *wfx,
|
|
struct audsettings *as)
|
|
{
|
|
memset (wfx, 0, sizeof (*wfx));
|
|
|
|
wfx->nChannels = as->nchannels;
|
|
wfx->nSamplesPerSec = as->freq;
|
|
wfx->nAvgBytesPerSec = as->freq << (as->nchannels == 2);
|
|
wfx->nBlockAlign = 1 << (as->nchannels == 2);
|
|
wfx->cbSize = 0;
|
|
|
|
switch (as->fmt) {
|
|
case AUDIO_FORMAT_S8:
|
|
case AUDIO_FORMAT_U8:
|
|
wfx->wFormatTag = WAVE_FORMAT_PCM;
|
|
wfx->wBitsPerSample = 8;
|
|
break;
|
|
|
|
case AUDIO_FORMAT_S16:
|
|
case AUDIO_FORMAT_U16:
|
|
wfx->wFormatTag = WAVE_FORMAT_PCM;
|
|
wfx->wBitsPerSample = 16;
|
|
wfx->nAvgBytesPerSec <<= 1;
|
|
wfx->nBlockAlign <<= 1;
|
|
break;
|
|
|
|
case AUDIO_FORMAT_S32:
|
|
case AUDIO_FORMAT_U32:
|
|
wfx->wFormatTag = WAVE_FORMAT_PCM;
|
|
wfx->wBitsPerSample = 32;
|
|
wfx->nAvgBytesPerSec <<= 2;
|
|
wfx->nBlockAlign <<= 2;
|
|
break;
|
|
|
|
case AUDIO_FORMAT_F32:
|
|
wfx->wFormatTag = WAVE_FORMAT_IEEE_FLOAT;
|
|
wfx->wBitsPerSample = 32;
|
|
wfx->nAvgBytesPerSec <<= 2;
|
|
wfx->nBlockAlign <<= 2;
|
|
break;
|
|
|
|
default:
|
|
dolog("Internal logic error: Bad audio format %d\n", as->fmt);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int waveformat_to_audio_settings (WAVEFORMATEX *wfx,
|
|
struct audsettings *as)
|
|
{
|
|
if (!wfx->nSamplesPerSec) {
|
|
dolog ("Invalid wave format, frequency is zero\n");
|
|
return -1;
|
|
}
|
|
as->freq = wfx->nSamplesPerSec;
|
|
|
|
switch (wfx->nChannels) {
|
|
case 1:
|
|
as->nchannels = 1;
|
|
break;
|
|
|
|
case 2:
|
|
as->nchannels = 2;
|
|
break;
|
|
|
|
default:
|
|
dolog (
|
|
"Invalid wave format, number of channels is not 1 or 2, but %d\n",
|
|
wfx->nChannels
|
|
);
|
|
return -1;
|
|
}
|
|
|
|
if (wfx->wFormatTag == WAVE_FORMAT_PCM) {
|
|
switch (wfx->wBitsPerSample) {
|
|
case 8:
|
|
as->fmt = AUDIO_FORMAT_U8;
|
|
break;
|
|
|
|
case 16:
|
|
as->fmt = AUDIO_FORMAT_S16;
|
|
break;
|
|
|
|
case 32:
|
|
as->fmt = AUDIO_FORMAT_S32;
|
|
break;
|
|
|
|
default:
|
|
dolog("Invalid PCM wave format, bits per sample is not "
|
|
"8, 16 or 32, but %d\n",
|
|
wfx->wBitsPerSample);
|
|
return -1;
|
|
}
|
|
} else if (wfx->wFormatTag == WAVE_FORMAT_IEEE_FLOAT) {
|
|
switch (wfx->wBitsPerSample) {
|
|
case 32:
|
|
as->fmt = AUDIO_FORMAT_F32;
|
|
break;
|
|
|
|
default:
|
|
dolog("Invalid IEEE_FLOAT wave format, bits per sample is not "
|
|
"32, but %d\n",
|
|
wfx->wBitsPerSample);
|
|
return -1;
|
|
}
|
|
} else {
|
|
dolog("Invalid wave format, tag is not PCM and not IEEE_FLOAT, "
|
|
"but %d\n",
|
|
wfx->wFormatTag);
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|