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Make spatialization gain smoothing configurable at the engine level.

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David Reid
2021-04-05 18:16:08 +10:00
parent 9097bb862b
commit 1604512e89
1 changed files with 16 additions and 0 deletions
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research/miniaudio_engine.h
+16
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@@ -1751,6 +1751,8 @@ typedef struct
ma_uint32 sampleRate; /* The sample rate. When set to 0 will use the native channel count of the device. */
ma_uint32 periodSizeInFrames; /* If set to something other than 0, updates will always be exactly this size. The underlying device may be a different size, but from the perspective of the mixer that won't matter.*/
ma_uint32 periodSizeInMilliseconds; /* Used if periodSizeInFrames is unset. */
ma_uint32 gainSmoothTimeInFrames; /* The number of frames to interpolate the gain of spatialized sounds across. If set to 0, will use gainSmoothTimeInMilliseconds. */
ma_uint32 gainSmoothTimeInMilliseconds; /* When set to 0, gainSmoothTimeInFrames will be used. If both are set to 0, a default value will be used. */
ma_device_id* pPlaybackDeviceID; /* The ID of the playback device to use with the default listener. */
ma_allocation_callbacks allocationCallbacks;
ma_bool32 noAutoStart; /* When set to true, requires an explicit call to ma_engine_start(). This is false by default, meaning the engine will be started automatically in ma_engine_init(). */
@@ -1773,6 +1775,7 @@ struct ma_engine
ma_mutex inlinedSoundLock; /* For synchronizing access so the inlined sound list. */
ma_sound_inlined* pInlinedSoundHead; /* The first inlined sound. Inlined sounds are tracked in a linked list. */
MA_ATOMIC ma_uint32 inlinedSoundCount; /* The total number of allocated inlined sound objects. Used for debugging. */
ma_uint32 gainSmoothTimeInFrames; /* The number of frames to interpolate the gain of spatialized sounds across. */
};
MA_API ma_result ma_engine_init(const ma_engine_config* pConfig, ma_engine* pEngine);
@@ -10568,6 +10571,7 @@ MA_API ma_result ma_engine_node_init(const ma_engine_node_config* pConfig, const
ensure channels counts link up correctly in the node graph.
*/
spatializerConfig = ma_spatializer_config_init(baseNodeConfig.inputChannels[0], baseNodeConfig.outputChannels[0]);
spatializerConfig.gainSmoothTimeInFrames = pEngineNode->pEngine->gainSmoothTimeInFrames;
result = ma_spatializer_init(&spatializerConfig, &pEngineNode->spatializer);
if (result != MA_SUCCESS) {
@@ -10763,6 +10767,18 @@ MA_API ma_result ma_engine_init(const ma_engine_config* pConfig, ma_engine* pEng
}
/* Gain smoothing for spatialized sounds. */
pEngine->gainSmoothTimeInFrames = pConfig->gainSmoothTimeInFrames;
if (pEngine->gainSmoothTimeInFrames == 0) {
ma_uint32 gainSmoothTimeInMilliseconds = pConfig->gainSmoothTimeInMilliseconds;
if (gainSmoothTimeInMilliseconds == 0) {
gainSmoothTimeInMilliseconds = 8;
}
pEngine->gainSmoothTimeInFrames = (gainSmoothTimeInMilliseconds * ma_engine_get_sample_rate(pEngine)) / 1000; /* 8ms by default. */
}
/* We need a resource manager. */
#ifndef MA_NO_RESOURCE_MANAGER
if (pEngine->pResourceManager == NULL) {