view release on metacpan or  search on metacpan

share/public_html/static/music_inc/src/miniaudio.h  view on Meta::CPAN

        if (result != MA_SUCCESS) {
            return result;
        }

        MA_ZERO_OBJECT(&caps);
        caps.dwSize = sizeof(caps);
        hr = ma_IDirectSound_GetCaps(pDirectSound, &caps);
        if (FAILED(hr)) {
            return ma_context_post_error(pContext, NULL, MA_LOG_LEVEL_ERROR, "[DirectSound] IDirectSound_GetCaps() failed for playback device.", ma_result_from_HRESULT(hr));
        }

        if ((caps.dwFlags & MA_DSCAPS_PRIMARYSTEREO) != 0) {
            /* It supports at least stereo, but could support more. */
            WORD channels = 2;

            /* Look at the speaker configuration to get a better idea on the channel count. */
            DWORD speakerConfig;
            hr = ma_IDirectSound_GetSpeakerConfig(pDirectSound, &speakerConfig);
            if (SUCCEEDED(hr)) {
                ma_get_channels_from_speaker_config__dsound(speakerConfig, &channels, NULL);
            }

            pDeviceInfo->minChannels = channels;
            pDeviceInfo->maxChannels = channels;
        } else {
            /* It does not support stereo, which means we are stuck with mono. */
            pDeviceInfo->minChannels = 1;
            pDeviceInfo->maxChannels = 1;
        }

        /* Sample rate. */
        if ((caps.dwFlags & MA_DSCAPS_CONTINUOUSRATE) != 0) {
            pDeviceInfo->minSampleRate = caps.dwMinSecondarySampleRate;
            pDeviceInfo->maxSampleRate = caps.dwMaxSecondarySampleRate;

            /*
            On my machine the min and max sample rates can return 100 and 200000 respectively. I'd rather these be within
            the range of our standard sample rates so I'm clamping.
            */
            if (caps.dwMinSecondarySampleRate < MA_MIN_SAMPLE_RATE && caps.dwMaxSecondarySampleRate >= MA_MIN_SAMPLE_RATE) {
                pDeviceInfo->minSampleRate = MA_MIN_SAMPLE_RATE;
            }
            if (caps.dwMaxSecondarySampleRate > MA_MAX_SAMPLE_RATE && caps.dwMinSecondarySampleRate <= MA_MAX_SAMPLE_RATE) {
                pDeviceInfo->maxSampleRate = MA_MAX_SAMPLE_RATE;
            }
        } else {
            /* Only supports a single sample rate. Set both min an max to the same thing. Do not clamp within the standard rates. */
            pDeviceInfo->minSampleRate = caps.dwMaxSecondarySampleRate;
            pDeviceInfo->maxSampleRate = caps.dwMaxSecondarySampleRate;
        }

        /* DirectSound can support all formats. */
        pDeviceInfo->formatCount = ma_format_count - 1;    /* Minus one because we don't want to include ma_format_unknown. */
        for (iFormat = 0; iFormat < pDeviceInfo->formatCount; ++iFormat) {
            pDeviceInfo->formats[iFormat] = (ma_format)(iFormat + 1);  /* +1 to skip over ma_format_unknown. */
        }

        ma_IDirectSound_Release(pDirectSound);
    } else {
        /*
        Capture. This is a little different to playback due to the say the supported formats are reported. Technically capture
        devices can support a number of different formats, but for simplicity and consistency with ma_device_init() I'm just
        reporting the best format.
        */
        ma_IDirectSoundCapture* pDirectSoundCapture;
        WORD channels;
        WORD bitsPerSample;
        DWORD sampleRate;

        result = ma_context_create_IDirectSoundCapture__dsound(pContext, shareMode, pDeviceID, &pDirectSoundCapture);
        if (result != MA_SUCCESS) {
            return result;
        }

        result = ma_context_get_format_info_for_IDirectSoundCapture__dsound(pContext, pDirectSoundCapture, &channels, &bitsPerSample, &sampleRate);
        if (result != MA_SUCCESS) {
            ma_IDirectSoundCapture_Release(pDirectSoundCapture);
            return result;
        }

        pDeviceInfo->minChannels = channels;
        pDeviceInfo->maxChannels = channels;
        pDeviceInfo->minSampleRate = sampleRate;
        pDeviceInfo->maxSampleRate = sampleRate;
        pDeviceInfo->formatCount = 1;
        if (bitsPerSample == 8) {
            pDeviceInfo->formats[0] = ma_format_u8;
        } else if (bitsPerSample == 16) {
            pDeviceInfo->formats[0] = ma_format_s16;
        } else if (bitsPerSample == 24) {
            pDeviceInfo->formats[0] = ma_format_s24;
        } else if (bitsPerSample == 32) {
            pDeviceInfo->formats[0] = ma_format_s32;
        } else {
            ma_IDirectSoundCapture_Release(pDirectSoundCapture);
            return MA_FORMAT_NOT_SUPPORTED;
        }

        ma_IDirectSoundCapture_Release(pDirectSoundCapture);
    }

    return MA_SUCCESS;
}



static void ma_device_uninit__dsound(ma_device* pDevice)
{
    MA_ASSERT(pDevice != NULL);

    if (pDevice->dsound.pCaptureBuffer != NULL) {
        ma_IDirectSoundCaptureBuffer_Release((ma_IDirectSoundCaptureBuffer*)pDevice->dsound.pCaptureBuffer);
    }
    if (pDevice->dsound.pCapture != NULL) {
        ma_IDirectSoundCapture_Release((ma_IDirectSoundCapture*)pDevice->dsound.pCapture);
    }

    if (pDevice->dsound.pPlaybackBuffer != NULL) {
        ma_IDirectSoundBuffer_Release((ma_IDirectSoundBuffer*)pDevice->dsound.pPlaybackBuffer);
    }
    if (pDevice->dsound.pPlaybackPrimaryBuffer != NULL) {