mirror of
https://gitlab.com/qemu-project/qemu
synced 2024-11-05 20:35:44 +00:00
723 lines
17 KiB
C
723 lines
17 KiB
C
/* public domain */
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#include "qemu-common.h"
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#include "sysemu.h"
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#include "audio.h"
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#define AUDIO_CAP "winwave"
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#include "audio_int.h"
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#include <windows.h>
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#include <mmsystem.h>
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#include "audio_win_int.h"
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static struct {
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int dac_headers;
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int dac_samples;
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int adc_headers;
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int adc_samples;
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} conf = {
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.dac_headers = 4,
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.dac_samples = 1024,
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.adc_headers = 4,
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.adc_samples = 1024
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};
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typedef struct {
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HWVoiceOut hw;
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HWAVEOUT hwo;
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WAVEHDR *hdrs;
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HANDLE event;
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void *pcm_buf;
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int avail;
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int pending;
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int curhdr;
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int paused;
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CRITICAL_SECTION crit_sect;
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} WaveVoiceOut;
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typedef struct {
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HWVoiceIn hw;
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HWAVEIN hwi;
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WAVEHDR *hdrs;
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HANDLE event;
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void *pcm_buf;
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int curhdr;
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int paused;
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int rpos;
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int avail;
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CRITICAL_SECTION crit_sect;
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} WaveVoiceIn;
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static void winwave_log_mmresult (MMRESULT mr)
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{
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const char *str = "BUG";
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switch (mr) {
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case MMSYSERR_NOERROR:
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str = "Success";
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break;
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case MMSYSERR_INVALHANDLE:
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str = "Specified device handle is invalid";
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break;
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case MMSYSERR_BADDEVICEID:
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str = "Specified device id is out of range";
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break;
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case MMSYSERR_NODRIVER:
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str = "No device driver is present";
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break;
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case MMSYSERR_NOMEM:
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str = "Unable to allocate or lock memory";
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break;
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case WAVERR_SYNC:
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str = "Device is synchronous but waveOutOpen was called "
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"without using the WINWAVE_ALLOWSYNC flag";
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break;
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case WAVERR_UNPREPARED:
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str = "The data block pointed to by the pwh parameter "
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"hasn't been prepared";
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break;
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case WAVERR_STILLPLAYING:
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str = "There are still buffers in the queue";
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break;
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default:
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dolog ("Reason: Unknown (MMRESULT %#x)\n", mr);
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return;
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}
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dolog ("Reason: %s\n", str);
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}
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static void GCC_FMT_ATTR (2, 3) winwave_logerr (
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MMRESULT mr,
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const char *fmt,
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...
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)
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{
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va_list ap;
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va_start (ap, fmt);
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AUD_vlog (AUDIO_CAP, fmt, ap);
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va_end (ap);
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AUD_log (NULL, " failed\n");
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winwave_log_mmresult (mr);
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}
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static void winwave_anal_close_out (WaveVoiceOut *wave)
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{
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MMRESULT mr;
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mr = waveOutClose (wave->hwo);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutClose");
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}
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wave->hwo = NULL;
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}
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static void CALLBACK winwave_callback_out (
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HWAVEOUT hwo,
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UINT msg,
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DWORD_PTR dwInstance,
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DWORD_PTR dwParam1,
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DWORD_PTR dwParam2
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)
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{
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WaveVoiceOut *wave = (WaveVoiceOut *) dwInstance;
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switch (msg) {
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case WOM_DONE:
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{
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WAVEHDR *h = (WAVEHDR *) dwParam1;
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if (!h->dwUser) {
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h->dwUser = 1;
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EnterCriticalSection (&wave->crit_sect);
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{
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wave->avail += conf.dac_samples;
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}
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LeaveCriticalSection (&wave->crit_sect);
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if (wave->hw.poll_mode) {
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if (!SetEvent (wave->event)) {
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dolog ("DAC SetEvent failed %lx\n", GetLastError ());
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}
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}
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}
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}
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break;
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case WOM_CLOSE:
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case WOM_OPEN:
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break;
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default:
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dolog ("unknown wave out callback msg %x\n", msg);
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}
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}
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static int winwave_init_out (HWVoiceOut *hw, struct audsettings *as)
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{
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int i;
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int err;
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MMRESULT mr;
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WAVEFORMATEX wfx;
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WaveVoiceOut *wave;
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wave = (WaveVoiceOut *) hw;
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InitializeCriticalSection (&wave->crit_sect);
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err = waveformat_from_audio_settings (&wfx, as);
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if (err) {
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goto err0;
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}
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mr = waveOutOpen (&wave->hwo, WAVE_MAPPER, &wfx,
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(DWORD_PTR) winwave_callback_out,
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(DWORD_PTR) wave, CALLBACK_FUNCTION);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutOpen");
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goto err1;
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}
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wave->hdrs = audio_calloc (AUDIO_FUNC, conf.dac_headers,
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sizeof (*wave->hdrs));
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if (!wave->hdrs) {
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goto err2;
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}
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audio_pcm_init_info (&hw->info, as);
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hw->samples = conf.dac_samples * conf.dac_headers;
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wave->avail = hw->samples;
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wave->pcm_buf = audio_calloc (AUDIO_FUNC, conf.dac_samples,
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conf.dac_headers << hw->info.shift);
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if (!wave->pcm_buf) {
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goto err3;
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}
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for (i = 0; i < conf.dac_headers; ++i) {
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WAVEHDR *h = &wave->hdrs[i];
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h->dwUser = 0;
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h->dwBufferLength = conf.dac_samples << hw->info.shift;
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h->lpData = advance (wave->pcm_buf, i * h->dwBufferLength);
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h->dwFlags = 0;
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mr = waveOutPrepareHeader (wave->hwo, h, sizeof (*h));
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutPrepareHeader(%d)", i);
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goto err4;
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}
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}
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return 0;
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err4:
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g_free (wave->pcm_buf);
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err3:
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g_free (wave->hdrs);
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err2:
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winwave_anal_close_out (wave);
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err1:
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err0:
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return -1;
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}
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static int winwave_write (SWVoiceOut *sw, void *buf, int len)
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{
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return audio_pcm_sw_write (sw, buf, len);
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}
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static int winwave_run_out (HWVoiceOut *hw, int live)
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{
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WaveVoiceOut *wave = (WaveVoiceOut *) hw;
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int decr;
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int doreset;
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EnterCriticalSection (&wave->crit_sect);
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{
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decr = audio_MIN (live, wave->avail);
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decr = audio_pcm_hw_clip_out (hw, wave->pcm_buf, decr, wave->pending);
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wave->pending += decr;
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wave->avail -= decr;
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}
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LeaveCriticalSection (&wave->crit_sect);
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doreset = hw->poll_mode && (wave->pending >= conf.dac_samples);
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if (doreset && !ResetEvent (wave->event)) {
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dolog ("DAC ResetEvent failed %lx\n", GetLastError ());
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}
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while (wave->pending >= conf.dac_samples) {
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MMRESULT mr;
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WAVEHDR *h = &wave->hdrs[wave->curhdr];
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h->dwUser = 0;
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mr = waveOutWrite (wave->hwo, h, sizeof (*h));
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutWrite(%d)", wave->curhdr);
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break;
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}
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wave->pending -= conf.dac_samples;
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wave->curhdr = (wave->curhdr + 1) % conf.dac_headers;
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}
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return decr;
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}
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static void winwave_poll (void *opaque)
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{
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(void) opaque;
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audio_run ("winwave_poll");
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}
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static void winwave_fini_out (HWVoiceOut *hw)
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{
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int i;
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MMRESULT mr;
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WaveVoiceOut *wave = (WaveVoiceOut *) hw;
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mr = waveOutReset (wave->hwo);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutReset");
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}
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for (i = 0; i < conf.dac_headers; ++i) {
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mr = waveOutUnprepareHeader (wave->hwo, &wave->hdrs[i],
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sizeof (wave->hdrs[i]));
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutUnprepareHeader(%d)", i);
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}
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}
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winwave_anal_close_out (wave);
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if (wave->event) {
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qemu_del_wait_object (wave->event, winwave_poll, wave);
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if (!CloseHandle (wave->event)) {
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dolog ("DAC CloseHandle failed %lx\n", GetLastError ());
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}
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wave->event = NULL;
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}
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g_free (wave->pcm_buf);
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wave->pcm_buf = NULL;
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g_free (wave->hdrs);
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wave->hdrs = NULL;
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}
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static int winwave_ctl_out (HWVoiceOut *hw, int cmd, ...)
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{
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MMRESULT mr;
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WaveVoiceOut *wave = (WaveVoiceOut *) hw;
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switch (cmd) {
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case VOICE_ENABLE:
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{
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va_list ap;
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int poll_mode;
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va_start (ap, cmd);
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poll_mode = va_arg (ap, int);
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va_end (ap);
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if (poll_mode && !wave->event) {
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wave->event = CreateEvent (NULL, TRUE, TRUE, NULL);
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if (!wave->event) {
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dolog ("DAC CreateEvent: %lx, poll mode will be disabled\n",
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GetLastError ());
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}
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}
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if (wave->event) {
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int ret;
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ret = qemu_add_wait_object (wave->event, winwave_poll, wave);
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hw->poll_mode = (ret == 0);
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}
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else {
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hw->poll_mode = 0;
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}
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if (wave->paused) {
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mr = waveOutRestart (wave->hwo);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutRestart");
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}
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wave->paused = 0;
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}
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}
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return 0;
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case VOICE_DISABLE:
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if (!wave->paused) {
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mr = waveOutPause (wave->hwo);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveOutPause");
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}
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else {
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wave->paused = 1;
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}
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}
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if (wave->event) {
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qemu_del_wait_object (wave->event, winwave_poll, wave);
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}
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return 0;
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}
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return -1;
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}
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static void winwave_anal_close_in (WaveVoiceIn *wave)
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{
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MMRESULT mr;
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mr = waveInClose (wave->hwi);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveInClose");
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}
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wave->hwi = NULL;
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}
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static void CALLBACK winwave_callback_in (
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HWAVEIN *hwi,
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UINT msg,
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DWORD_PTR dwInstance,
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DWORD_PTR dwParam1,
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DWORD_PTR dwParam2
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)
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{
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WaveVoiceIn *wave = (WaveVoiceIn *) dwInstance;
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switch (msg) {
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case WIM_DATA:
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{
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WAVEHDR *h = (WAVEHDR *) dwParam1;
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if (!h->dwUser) {
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h->dwUser = 1;
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EnterCriticalSection (&wave->crit_sect);
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{
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wave->avail += conf.adc_samples;
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}
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LeaveCriticalSection (&wave->crit_sect);
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if (wave->hw.poll_mode) {
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if (!SetEvent (wave->event)) {
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dolog ("ADC SetEvent failed %lx\n", GetLastError ());
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}
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}
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}
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}
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break;
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case WIM_CLOSE:
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case WIM_OPEN:
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break;
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default:
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dolog ("unknown wave in callback msg %x\n", msg);
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}
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}
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static void winwave_add_buffers (WaveVoiceIn *wave, int samples)
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{
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int doreset;
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doreset = wave->hw.poll_mode && (samples >= conf.adc_samples);
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if (doreset && !ResetEvent (wave->event)) {
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dolog ("ADC ResetEvent failed %lx\n", GetLastError ());
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}
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while (samples >= conf.adc_samples) {
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MMRESULT mr;
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WAVEHDR *h = &wave->hdrs[wave->curhdr];
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h->dwUser = 0;
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mr = waveInAddBuffer (wave->hwi, h, sizeof (*h));
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveInAddBuffer(%d)", wave->curhdr);
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}
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wave->curhdr = (wave->curhdr + 1) % conf.adc_headers;
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samples -= conf.adc_samples;
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}
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}
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static int winwave_init_in (HWVoiceIn *hw, struct audsettings *as)
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{
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int i;
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int err;
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MMRESULT mr;
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WAVEFORMATEX wfx;
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WaveVoiceIn *wave;
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wave = (WaveVoiceIn *) hw;
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InitializeCriticalSection (&wave->crit_sect);
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err = waveformat_from_audio_settings (&wfx, as);
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if (err) {
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goto err0;
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}
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mr = waveInOpen (&wave->hwi, WAVE_MAPPER, &wfx,
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(DWORD_PTR) winwave_callback_in,
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(DWORD_PTR) wave, CALLBACK_FUNCTION);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveInOpen");
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goto err1;
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}
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wave->hdrs = audio_calloc (AUDIO_FUNC, conf.dac_headers,
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sizeof (*wave->hdrs));
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if (!wave->hdrs) {
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goto err2;
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}
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audio_pcm_init_info (&hw->info, as);
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hw->samples = conf.adc_samples * conf.adc_headers;
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wave->avail = 0;
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wave->pcm_buf = audio_calloc (AUDIO_FUNC, conf.adc_samples,
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conf.adc_headers << hw->info.shift);
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if (!wave->pcm_buf) {
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goto err3;
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}
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for (i = 0; i < conf.adc_headers; ++i) {
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WAVEHDR *h = &wave->hdrs[i];
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|
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h->dwUser = 0;
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h->dwBufferLength = conf.adc_samples << hw->info.shift;
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h->lpData = advance (wave->pcm_buf, i * h->dwBufferLength);
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h->dwFlags = 0;
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|
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mr = waveInPrepareHeader (wave->hwi, h, sizeof (*h));
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveInPrepareHeader(%d)", i);
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goto err4;
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}
|
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}
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|
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wave->paused = 1;
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winwave_add_buffers (wave, hw->samples);
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return 0;
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err4:
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g_free (wave->pcm_buf);
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err3:
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g_free (wave->hdrs);
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err2:
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winwave_anal_close_in (wave);
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err1:
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err0:
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return -1;
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}
|
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|
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static void winwave_fini_in (HWVoiceIn *hw)
|
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{
|
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int i;
|
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MMRESULT mr;
|
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WaveVoiceIn *wave = (WaveVoiceIn *) hw;
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|
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mr = waveInReset (wave->hwi);
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if (mr != MMSYSERR_NOERROR) {
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winwave_logerr (mr, "waveInReset");
|
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}
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|
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for (i = 0; i < conf.adc_headers; ++i) {
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mr = waveInUnprepareHeader (wave->hwi, &wave->hdrs[i],
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sizeof (wave->hdrs[i]));
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if (mr != MMSYSERR_NOERROR) {
|
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winwave_logerr (mr, "waveInUnprepareHeader(%d)", i);
|
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}
|
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}
|
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|
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winwave_anal_close_in (wave);
|
|
|
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if (wave->event) {
|
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qemu_del_wait_object (wave->event, winwave_poll, wave);
|
|
if (!CloseHandle (wave->event)) {
|
|
dolog ("ADC CloseHandle failed %lx\n", GetLastError ());
|
|
}
|
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wave->event = NULL;
|
|
}
|
|
|
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g_free (wave->pcm_buf);
|
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wave->pcm_buf = NULL;
|
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|
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g_free (wave->hdrs);
|
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wave->hdrs = NULL;
|
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}
|
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|
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static int winwave_run_in (HWVoiceIn *hw)
|
|
{
|
|
WaveVoiceIn *wave = (WaveVoiceIn *) hw;
|
|
int live = audio_pcm_hw_get_live_in (hw);
|
|
int dead = hw->samples - live;
|
|
int decr, ret;
|
|
|
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if (!dead) {
|
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return 0;
|
|
}
|
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|
|
EnterCriticalSection (&wave->crit_sect);
|
|
{
|
|
decr = audio_MIN (dead, wave->avail);
|
|
wave->avail -= decr;
|
|
}
|
|
LeaveCriticalSection (&wave->crit_sect);
|
|
|
|
ret = decr;
|
|
while (decr) {
|
|
int left = hw->samples - hw->wpos;
|
|
int conv = audio_MIN (left, decr);
|
|
hw->conv (hw->conv_buf + hw->wpos,
|
|
advance (wave->pcm_buf, wave->rpos << hw->info.shift),
|
|
conv);
|
|
|
|
wave->rpos = (wave->rpos + conv) % hw->samples;
|
|
hw->wpos = (hw->wpos + conv) % hw->samples;
|
|
decr -= conv;
|
|
}
|
|
|
|
winwave_add_buffers (wave, ret);
|
|
return ret;
|
|
}
|
|
|
|
static int winwave_read (SWVoiceIn *sw, void *buf, int size)
|
|
{
|
|
return audio_pcm_sw_read (sw, buf, size);
|
|
}
|
|
|
|
static int winwave_ctl_in (HWVoiceIn *hw, int cmd, ...)
|
|
{
|
|
MMRESULT mr;
|
|
WaveVoiceIn *wave = (WaveVoiceIn *) hw;
|
|
|
|
switch (cmd) {
|
|
case VOICE_ENABLE:
|
|
{
|
|
va_list ap;
|
|
int poll_mode;
|
|
|
|
va_start (ap, cmd);
|
|
poll_mode = va_arg (ap, int);
|
|
va_end (ap);
|
|
|
|
if (poll_mode && !wave->event) {
|
|
wave->event = CreateEvent (NULL, TRUE, TRUE, NULL);
|
|
if (!wave->event) {
|
|
dolog ("ADC CreateEvent: %lx, poll mode will be disabled\n",
|
|
GetLastError ());
|
|
}
|
|
}
|
|
|
|
if (wave->event) {
|
|
int ret;
|
|
|
|
ret = qemu_add_wait_object (wave->event, winwave_poll, wave);
|
|
hw->poll_mode = (ret == 0);
|
|
}
|
|
else {
|
|
hw->poll_mode = 0;
|
|
}
|
|
if (wave->paused) {
|
|
mr = waveInStart (wave->hwi);
|
|
if (mr != MMSYSERR_NOERROR) {
|
|
winwave_logerr (mr, "waveInStart");
|
|
}
|
|
wave->paused = 0;
|
|
}
|
|
}
|
|
return 0;
|
|
|
|
case VOICE_DISABLE:
|
|
if (!wave->paused) {
|
|
mr = waveInStop (wave->hwi);
|
|
if (mr != MMSYSERR_NOERROR) {
|
|
winwave_logerr (mr, "waveInStop");
|
|
}
|
|
else {
|
|
wave->paused = 1;
|
|
}
|
|
}
|
|
if (wave->event) {
|
|
qemu_del_wait_object (wave->event, winwave_poll, wave);
|
|
}
|
|
return 0;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static void *winwave_audio_init (void)
|
|
{
|
|
return &conf;
|
|
}
|
|
|
|
static void winwave_audio_fini (void *opaque)
|
|
{
|
|
(void) opaque;
|
|
}
|
|
|
|
static struct audio_option winwave_options[] = {
|
|
{
|
|
.name = "DAC_HEADERS",
|
|
.tag = AUD_OPT_INT,
|
|
.valp = &conf.dac_headers,
|
|
.descr = "DAC number of headers",
|
|
},
|
|
{
|
|
.name = "DAC_SAMPLES",
|
|
.tag = AUD_OPT_INT,
|
|
.valp = &conf.dac_samples,
|
|
.descr = "DAC number of samples per header",
|
|
},
|
|
{
|
|
.name = "ADC_HEADERS",
|
|
.tag = AUD_OPT_INT,
|
|
.valp = &conf.adc_headers,
|
|
.descr = "ADC number of headers",
|
|
},
|
|
{
|
|
.name = "ADC_SAMPLES",
|
|
.tag = AUD_OPT_INT,
|
|
.valp = &conf.adc_samples,
|
|
.descr = "ADC number of samples per header",
|
|
},
|
|
{ /* End of list */ }
|
|
};
|
|
|
|
static struct audio_pcm_ops winwave_pcm_ops = {
|
|
.init_out = winwave_init_out,
|
|
.fini_out = winwave_fini_out,
|
|
.run_out = winwave_run_out,
|
|
.write = winwave_write,
|
|
.ctl_out = winwave_ctl_out,
|
|
.init_in = winwave_init_in,
|
|
.fini_in = winwave_fini_in,
|
|
.run_in = winwave_run_in,
|
|
.read = winwave_read,
|
|
.ctl_in = winwave_ctl_in
|
|
};
|
|
|
|
struct audio_driver winwave_audio_driver = {
|
|
.name = "winwave",
|
|
.descr = "Windows Waveform Audio http://msdn.microsoft.com",
|
|
.options = winwave_options,
|
|
.init = winwave_audio_init,
|
|
.fini = winwave_audio_fini,
|
|
.pcm_ops = &winwave_pcm_ops,
|
|
.can_be_default = 1,
|
|
.max_voices_out = INT_MAX,
|
|
.max_voices_in = INT_MAX,
|
|
.voice_size_out = sizeof (WaveVoiceOut),
|
|
.voice_size_in = sizeof (WaveVoiceIn)
|
|
};
|