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Another potential fix for some full-duplex glitching.

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This change makes it so reading and writing is done on the smaller of
the period sizes between capture and playback devices.
This commit is contained in:
David Reid
2019-02-27 18:18:01 +10:00
parent 997d8a8d9d
commit 957de48d80
2 changed files with 25 additions and 11 deletions
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mini_al.h
+17 -4
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@@ -9216,8 +9216,9 @@ mal_result mal_device_map_next_playback_buffer__dsound(mal_device* pDevice)
{
DWORD periodSizeInBytes = (pDevice->playback.internalBufferSizeInFrames / pDevice->playback.internalPeriods) * mal_get_bytes_per_frame(pDevice->playback.internalFormat, pDevice->playback.internalChannels);
DWORD lockOffset = (pDevice->dsound.iNextPeriodPlayback * periodSizeInBytes);
DWORD lockSizeInBytes = periodSizeInBytes;
DWORD mappedSizeInBytes;
HRESULT hr = mal_IDirectSoundBuffer_Lock((mal_IDirectSoundBuffer*)pDevice->dsound.pPlaybackBuffer, lockOffset, periodSizeInBytes, &pDevice->dsound.pMappedBufferPlayback, &mappedSizeInBytes, NULL, NULL, 0);
HRESULT hr = mal_IDirectSoundBuffer_Lock((mal_IDirectSoundBuffer*)pDevice->dsound.pPlaybackBuffer, lockOffset, lockSizeInBytes, &pDevice->dsound.pMappedBufferPlayback, &mappedSizeInBytes, NULL, NULL, 0);
if (FAILED(hr)) {
return mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "[DirectSound] Failed to map buffer from playback device in preparation for writing to the device.", MAL_FAILED_TO_MAP_DEVICE_BUFFER);
}
@@ -9225,6 +9226,8 @@ mal_result mal_device_map_next_playback_buffer__dsound(mal_device* pDevice)
pDevice->dsound.mappedBufferFramesCapacityPlayback = (mal_uint32)mappedSizeInBytes / mal_get_bytes_per_frame(pDevice->playback.internalFormat, pDevice->playback.internalChannels);
pDevice->dsound.mappedBufferFramesRemainingPlayback = (mal_uint32)mappedSizeInBytes / mal_get_bytes_per_frame(pDevice->playback.internalFormat, pDevice->playback.internalChannels);
//printf("TRACE 1: Playback: iNextPeriod=%d, internalBufferSizeInFrames=%d, periodSizeInBytes=%d, mappedSizeInBytes=%d\n", pDevice->dsound.iNextPeriodPlayback, pDevice->playback.internalBufferSizeInFrames, periodSizeInBytes, mappedSizeInBytes);
return MAL_SUCCESS;
}
@@ -9346,8 +9349,9 @@ mal_result mal_device_map_next_capture_buffer__dsound(mal_device* pDevice)
{
DWORD periodSizeInBytes = (pDevice->capture.internalBufferSizeInFrames / pDevice->capture.internalPeriods) * mal_get_bytes_per_frame(pDevice->capture.internalFormat, pDevice->capture.internalChannels);
DWORD lockOffset = (pDevice->dsound.iNextPeriodCapture * periodSizeInBytes);
DWORD lockSizeInBytes = periodSizeInBytes;
DWORD mappedSizeInBytes;
HRESULT hr = mal_IDirectSoundCaptureBuffer_Lock((mal_IDirectSoundCaptureBuffer*)pDevice->dsound.pCaptureBuffer, lockOffset, periodSizeInBytes, &pDevice->dsound.pMappedBufferCapture, &mappedSizeInBytes, NULL, NULL, 0);
HRESULT hr = mal_IDirectSoundCaptureBuffer_Lock((mal_IDirectSoundCaptureBuffer*)pDevice->dsound.pCaptureBuffer, lockOffset, lockSizeInBytes, &pDevice->dsound.pMappedBufferCapture, &mappedSizeInBytes, NULL, NULL, 0);
if (FAILED(hr)) {
return mal_post_error(pDevice, MAL_LOG_LEVEL_ERROR, "[DirectSound] Failed to map buffer from capture device in preparation for writing to the device.", MAL_FAILED_TO_MAP_DEVICE_BUFFER);
}
@@ -9355,6 +9359,8 @@ mal_result mal_device_map_next_capture_buffer__dsound(mal_device* pDevice)
pDevice->dsound.mappedBufferFramesCapacityCapture = (mal_uint32)mappedSizeInBytes / mal_get_bytes_per_frame(pDevice->capture.internalFormat, pDevice->capture.internalChannels);
pDevice->dsound.mappedBufferFramesRemainingCapture = (mal_uint32)mappedSizeInBytes / mal_get_bytes_per_frame(pDevice->capture.internalFormat, pDevice->capture.internalChannels);
//printf("TRACE 1: Capture: internalBufferSizeInFrames=%d, periodSizeInBytes=%d, mappedSizeInBytes=%d\n", pDevice->capture.internalBufferSizeInFrames, periodSizeInBytes, mappedSizeInBytes);
return MAL_SUCCESS;
}
@@ -21805,12 +21811,19 @@ mal_thread_result MAL_THREADCALL mal_worker_thread(void* pData)
);
mal_uint32 periodSizeInFrames;
if (pDevice->type == mal_device_type_capture || pDevice->type == mal_device_type_duplex) {
if (pDevice->type == mal_device_type_capture) {
mal_assert(pDevice->capture.internalBufferSizeInFrames >= pDevice->capture.internalPeriods);
periodSizeInFrames = pDevice->capture.internalBufferSizeInFrames / pDevice->capture.internalPeriods;
} else {
} else if (pDevice->type == mal_device_type_playback) {
mal_assert(pDevice->playback.internalBufferSizeInFrames >= pDevice->playback.internalPeriods);
periodSizeInFrames = pDevice->playback.internalBufferSizeInFrames / pDevice->playback.internalPeriods;
} else {
mal_assert(pDevice->capture.internalBufferSizeInFrames >= pDevice->capture.internalPeriods);
mal_assert(pDevice->playback.internalBufferSizeInFrames >= pDevice->playback.internalPeriods);
periodSizeInFrames = mal_min(
pDevice->capture.internalBufferSizeInFrames / pDevice->capture.internalPeriods,
pDevice->playback.internalBufferSizeInFrames / pDevice->playback.internalPeriods
);
}