audio.c

Wine-20031016

        if ((ret = OSS_RawOpenDevice(ossdev,strict_format)) != MMSYSERR_NOERROR) return ret;
    }
    else
    {
        /* check we really open with the same parameters */
        if (ossdev->open_access != req_access)
        {
            ERR("FullDuplex: Mismatch in access. Your sound device is not full duplex capable.\n");
            return WAVERR_BADFORMAT;
        }

	/* check if the audio parameters are the same */
        if (ossdev->sample_rate != sample_rate ||
            ossdev->stereo != stereo ||
            ossdev->format != fmt)
        {
	    /* This is not a fatal error because MSACM might do the remapping */ 
            WARN("FullDuplex: mismatch in PCM parameters for input and output\n"
                 "OSS doesn't allow us different parameters\n"
                 "audio_frag(%x/%x) sample_rate(%d/%d) stereo(%d/%d) fmt(%d/%d)\n",
                 ossdev->audio_fragment, frag ? *frag : 0,
                 ossdev->sample_rate, sample_rate,
                 ossdev->stereo, stereo,
                 ossdev->format, fmt);
            return WAVERR_BADFORMAT;
        }
	/* check if the fragment sizes are the same */
        if (ossdev->audio_fragment != (frag ? *frag : 0) ) {
	    ERR("FullDuplex: Playback and Capture hardware acceleration levels are different.\n"
		"Use: \"HardwareAcceleration\" = \"Emulation\" in the [dsound] section of your config file.\n");
	    return WAVERR_BADFORMAT;
	}
        if (GetCurrentThreadId() != ossdev->owner_tid)
        {
            WARN("Another thread is trying to access audio...\n");
            return MMSYSERR_ERROR;
        }
    }

    ossdev->open_count++;

    return MMSYSERR_NOERROR;
}

/******************************************************************
 *		OSS_CloseDevice
 *
 *
 */
static void	OSS_CloseDevice(OSS_DEVICE* ossdev)
{
    TRACE("(%p)\n",ossdev);
    if (ossdev->open_count>0) {
        ossdev->open_count--;
    } else {
        WARN("OSS_CloseDevice called too many times\n");
    }
    if (ossdev->open_count == 0)
    {
       /* reset the device before we close it in case it is in a bad state */
       ioctl(ossdev->fd, SNDCTL_DSP_RESET, 0);
       close(ossdev->fd);
    }
}

/******************************************************************
 *		OSS_ResetDevice
 *
 * Resets the device. OSS Commercial requires the device to be closed
 * after a SNDCTL_DSP_RESET ioctl call... this function implements
 * this behavior...
 * FIXME: This causes problems when doing full duplex so we really
 * only reset when not doing full duplex. We need to do this better
 * someday. 
 */
static DWORD     OSS_ResetDevice(OSS_DEVICE* ossdev)
{
    DWORD       ret = MMSYSERR_NOERROR;
    int         old_fd = ossdev->fd;
    TRACE("(%p)\n", ossdev);

    if (ossdev->open_count == 1) {
	if (ioctl(ossdev->fd, SNDCTL_DSP_RESET, NULL) == -1) 
	{
	    perror("ioctl SNDCTL_DSP_RESET");
            return -1;
	}
	close(ossdev->fd);
	ret = OSS_RawOpenDevice(ossdev, 1);
	TRACE("Changing fd from %d to %d\n", old_fd, ossdev->fd);
    } else 
	WARN("Not resetting device because it is in full duplex mode!\n");
    
    return ret;
}

const static int win_std_oss_fmts[2]={AFMT_U8,AFMT_S16_LE};
const static int win_std_rates[5]={96000,48000,44100,22050,11025};
const static int win_std_formats[2][2][5]=
    {{{WAVE_FORMAT_96M08, WAVE_FORMAT_48M08, WAVE_FORMAT_4M08,
       WAVE_FORMAT_2M08,  WAVE_FORMAT_1M08},
      {WAVE_FORMAT_96S08, WAVE_FORMAT_48S08, WAVE_FORMAT_4S08,
       WAVE_FORMAT_2S08,  WAVE_FORMAT_1S08}},
     {{WAVE_FORMAT_96M16, WAVE_FORMAT_48M16, WAVE_FORMAT_4M16,
       WAVE_FORMAT_2M16,  WAVE_FORMAT_1M16},
      {WAVE_FORMAT_96S16, WAVE_FORMAT_48S16, WAVE_FORMAT_4S16,
       WAVE_FORMAT_2S16,  WAVE_FORMAT_1S16}},
    };

/******************************************************************
 *		OSS_WaveOutInit
 *
 *
 */
static BOOL OSS_WaveOutInit(OSS_DEVICE* ossdev)
{
    int rc,arg;
    int f,c,r;
    TRACE("(%p) %s\n", ossdev, ossdev->dev_name);

    if (OSS_OpenDevice(ossdev, O_WRONLY, NULL, 0,-1,-1,-1) != 0) return FALSE;
    ioctl(ossdev->fd, SNDCTL_DSP_RESET, 0);

#ifdef SOUND_MIXER_INFO
    {
        int mixer;
        if ((mixer = open(ossdev->mixer_name, O_RDONLY|O_NDELAY)) >= 0) {
            mixer_info info;
            if (ioctl(mixer, SOUND_MIXER_INFO, &info) >= 0) {
                close(mixer);
                strncpy(ossdev->ds_desc.szDesc, info.name, sizeof(info.name));
                strcpy(ossdev->ds_desc.szDrvName, "wineoss.drv");
                strncpy(ossdev->out_caps.szPname, info.name, sizeof(info.name));
                TRACE("%s\n", ossdev->ds_desc.szDesc);
            } else {
                ERR("%s: can't read info!\n", ossdev->mixer_name);
                OSS_CloseDevice(ossdev);
                close(mixer);
                return FALSE;
            }
        } else {
            ERR("%s: %s\n", ossdev->mixer_name , strerror( errno ));
            OSS_CloseDevice(ossdev);
            return FALSE;
        }
    }
#endif /* SOUND_MIXER_INFO */

    /* FIXME: some programs compare this string against the content of the
     * registry for MM drivers. The names have to match in order for the
     * program to work (e.g. MS win9x mplayer.exe)
     */
#ifdef EMULATE_SB16
    ossdev->out_caps.wMid = 0x0002;
    ossdev->out_caps.wPid = 0x0104;
    strcpy(ossdev->out_caps.szPname, "SB16 Wave Out");
#else
    ossdev->out_caps.wMid = 0x00FF; /* Manufac ID */
    ossdev->out_caps.wPid = 0x0001; /* Product ID */
#endif
    ossdev->out_caps.vDriverVersion = 0x0100;
    ossdev->out_caps.wChannels = 1;
    ossdev->out_caps.dwFormats = 0x00000000;
    ossdev->out_caps.wReserved1 = 0;
    ossdev->out_caps.dwSupport = WAVECAPS_VOLUME;

    /* direct sound caps */
    ossdev->ds_caps.dwFlags = 0;
    ossdev->ds_caps.dwPrimaryBuffers = 1;
    ossdev->ds_caps.dwMinSecondarySampleRate = DSBFREQUENCY_MIN;
    ossdev->ds_caps.dwMaxSecondarySampleRate = DSBFREQUENCY_MAX;
                                                                                
    if (WINE_TRACE_ON(wave)) {
        /* Note that this only reports the formats supported by the hardware.
         * The driver may support other formats and do the conversions in
         * software which is why we don't use this value
         */
        int oss_mask;
        ioctl(ossdev->fd, SNDCTL_DSP_GETFMTS, &oss_mask);
        TRACE("OSS dsp out mask=%08x\n", oss_mask);
    }

    /* We must first set the format and the stereo mode as some sound cards
     * may support 44kHz mono but not 44kHz stereo. Also we must
     * systematically check the return value of these ioctls as they will
     * always succeed (see OSS Linux) but will modify the parameter to match
     * whatever they support. The OSS specs also say we must first set the
     * sample size, then the stereo and then the sample rate.
     */
    for (f=0;f<2;f++) {
        arg=win_std_oss_fmts[f];
        rc=ioctl(ossdev->fd, SNDCTL_DSP_SAMPLESIZE, &arg);
        if (rc!=0 || arg!=win_std_oss_fmts[f]) {
            TRACE("DSP_SAMPLESIZE: rc=%d returned %d for %d\n",
                  rc,arg,win_std_oss_fmts[f]);
            continue;
        }
	if (f == 0) 
	    ossdev->ds_caps.dwFlags |= DSCAPS_PRIMARY8BIT;
	else if (f == 1)
	    ossdev->ds_caps.dwFlags |= DSCAPS_PRIMARY16BIT;

        for (c=0;c<2;c++) {
            arg=c;
            rc=ioctl(ossdev->fd, SNDCTL_DSP_STEREO, &arg);
            if (rc!=0 || arg!=c) {
                TRACE("DSP_STEREO: rc=%d returned %d for %d\n",rc,arg,c);
                continue;
            }
	    if (c == 0) {
		ossdev->ds_caps.dwFlags |= DSCAPS_PRIMARYMONO;
	    } else if (c==1) {
                ossdev->out_caps.wChannels=2;
                ossdev->out_caps.dwSupport|=WAVECAPS_LRVOLUME;
		ossdev->ds_caps.dwFlags |= DSCAPS_PRIMARYSTEREO;
            }

            for (r=0;r<sizeof(win_std_rates)/sizeof(*win_std_rates);r++) {
                arg=win_std_rates[r];
                rc=ioctl(ossdev->fd, SNDCTL_DSP_SPEED, &arg);
                TRACE("DSP_SPEED: rc=%d returned %d for %dx%dx%d\n",
                      rc,arg,win_std_rates[r],win_std_oss_fmts[f],c+1);
                if (rc==0 && arg!=0 && NEAR_MATCH(arg,win_std_rates[r]))
                    ossdev->out_caps.dwFormats|=win_std_formats[f][c][r];
            }
        }
    }

    if (ioctl(ossdev->fd, SNDCTL_DSP_GETCAPS, &arg) == 0) {
        TRACE("OSS dsp out caps=%08X\n", arg);
        if (arg & DSP_CAP_TRIGGER)
            ossdev->bTriggerSupport = TRUE;
        if ((arg & DSP_CAP_REALTIME) && !(arg & DSP_CAP_BATCH)) {
            ossdev->out_caps.dwSupport |= WAVECAPS_SAMPLEACCURATE;
        }
        /* well, might as well use the DirectSound cap flag for something */
        if ((arg & DSP_CAP_TRIGGER) && (arg & DSP_CAP_MMAP) &&
            !(arg & DSP_CAP_BATCH)) {
            ossdev->out_caps.dwSupport |= WAVECAPS_DIRECTSOUND;
	} else {
	    ossdev->ds_caps.dwFlags |= DSCAPS_EMULDRIVER;
	}
    }
    OSS_CloseDevice(ossdev);
    TRACE("out dwFormats = %08lX, dwSupport = %08lX\n",
          ossdev->out_caps.dwFormats, ossdev->out_caps.dwSupport);
    return TRUE;
}

/******************************************************************
 *		OSS_WaveInInit
 *
 *
 */
static BOOL OSS_WaveInInit(OSS_DEVICE* ossdev)
{
    int rc,arg;
    int f,c,r;
    TRACE("(%p) %s\n", ossdev, ossdev->dev_name);

    if (OSS_OpenDevice(ossdev, O_RDONLY, NULL, 0,-1,-1,-1) != 0)
	return FALSE;

    ioctl(ossdev->fd, SNDCTL_DSP_RESET, 0);

#ifdef SOUND_MIXER_INFO
    {
        int mixer;
        if ((mixer = open(ossdev->mixer_name, O_RDONLY|O_NDELAY)) >= 0) {
            mixer_info info;
            if (ioctl(mixer, SOUND_MIXER_INFO, &info) >= 0) {
                close(mixer);
                strncpy(ossdev->in_caps.szPname, info.name, sizeof(info.name));
                TRACE("%s\n", ossdev->ds_desc.szDesc);
            } else {
                ERR("%s: can't read info!\n", ossdev->mixer_name);
                OSS_CloseDevice(ossdev);
                close(mixer);
                return FALSE;
            }
        } else {
            ERR("%s: %s\n", ossdev->mixer_name, strerror(errno));
            OSS_CloseDevice(ossdev);
            return FALSE;
        }
    }
#endif /* SOUND_MIXER_INFO */

    /* See comment in OSS_WaveOutInit */
#ifdef EMULATE_SB16
    ossdev->in_caps.wMid = 0x0002;
    ossdev->in_caps.wPid = 0x0004;
    strcpy(ossdev->in_caps.szPname, "SB16 Wave In");
#else
    ossdev->in_caps.wMid = 0x00FF; /* Manufac ID */
    ossdev->in_caps.wPid = 0x0001; /* Product ID */
#endif
    ossdev->in_caps.dwFormats = 0x00000000;
    ossdev->in_caps.wChannels = 1;
    ossdev->in_caps.wReserved1 = 0;

    /* direct sound caps */
    ossdev->dsc_caps.dwSize = sizeof(ossdev->dsc_caps);
    ossdev->dsc_caps.dwFlags = 0;
    ossdev->dsc_caps.dwFormats = 0x00000000;
    ossdev->dsc_caps.dwChannels = 1;

    if (WINE_TRACE_ON(wave)) {
        /* Note that this only reports the formats supported by the hardware.
         * The driver may support other formats and do the conversions in
         * software which is why we don't use this value
         */
        int oss_mask;
        ioctl(ossdev->fd, SNDCTL_DSP_GETFMTS, &oss_mask);
        TRACE("OSS dsp out mask=%08x\n", oss_mask);
    }

    /* See the comment in OSS_WaveOutInit */
    for (f=0;f<2;f++) {
        arg=win_std_oss_fmts[f];
        rc=ioctl(ossdev->fd, SNDCTL_DSP_SAMPLESIZE, &arg);
        if (rc!=0 || arg!=win_std_oss_fmts[f]) {
            TRACE("DSP_SAMPLESIZE: rc=%d returned 0x%x for 0x%x\n",
                  rc,arg,win_std_oss_fmts[f]);
            continue;
        }

        for (c=0;c<2;c++) {
            arg=c;
            rc=ioctl(ossdev->fd, SNDCTL_DSP_STEREO, &arg);
            if (rc!=0 || arg!=c) {
                TRACE("DSP_STEREO: rc=%d returned %d for %d\n",rc,arg,c);
                continue;
            }
            if (c==1) {
                ossdev->in_caps.wChannels=2;
    		ossdev->dsc_caps.dwChannels=2;
            }

            for (r=0;r<sizeof(win_std_rates)/sizeof(*win_std_rates);r++) {
                arg=win_std_rates[r];
                rc=ioctl(ossdev->fd, SNDCTL_DSP_SPEED, &arg);
                TRACE("DSP_SPEED: rc=%d returned %d for %dx%dx%d\n",rc,arg,win_std_rates[r],win_std_oss_fmts[f],c+1);
                if (rc==0 && NEAR_MATCH(arg,win_std_rates[r]))
                    ossdev->in_caps.dwFormats|=win_std_formats[f][c][r];
		    ossdev->dsc_caps.dwFormats|=win_std_formats[f][c][r];
            }
        }
    }

    if (ioctl(ossdev->fd, SNDCTL_DSP_GETCAPS, &arg) == 0) {
        TRACE("OSS dsp in caps=%08X\n", arg);
        if (arg & DSP_CAP_TRIGGER)
            ossdev->bTriggerSupport = TRUE;
        if ((arg & DSP_CAP_TRIGGER) && (arg & DSP_CAP_MMAP) &&
            !(arg & DSP_CAP_BATCH)) {
	    /* FIXME: enable the next statement if you want to work on the driver */
#if 0
            ossdev->in_caps_support |= WAVECAPS_DIRECTSOUND;
#endif
	}
	if ((arg & DSP_CAP_REALTIME) && !(arg & DSP_CAP_BATCH))
	    ossdev->in_caps_support |= WAVECAPS_SAMPLEACCURATE;
    }
    OSS_CloseDevice(ossdev);
    TRACE("in dwFormats = %08lX\n", ossdev->in_caps.dwFormats);
    return TRUE;
}

/******************************************************************
 *		OSS_WaveFullDuplexInit
 *
 *
 */
static void OSS_WaveFullDuplexInit(OSS_DEVICE* ossdev)
{
    int 	caps;
    TRACE("(%p)\n",ossdev);

    if (OSS_OpenDevice(ossdev, O_RDWR, NULL, 0,-1,-1,-1) != 0) return;
    if (ioctl(ossdev->fd, SNDCTL_DSP_GETCAPS, &caps) == 0)
    {
	ossdev->full_duplex = (caps & DSP_CAP_DUPLEX);
    }
    OSS_CloseDevice(ossdev);
}