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minimaudio is always instantiated. If no audio in/out chans, it writes 0s to a fake one

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This commit is contained in:
Paolo Marrone 2024-02-02 17:27:02 +01:00
parent 70e3d357f9
commit 54e5a539a4
1 changed files with 12 additions and 14 deletions
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26
templates/ios/src/native.mm
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@ -11,19 +11,14 @@
#include <mutex>
#endif
#include <vector>
#if NUM_CHANNELS_IN + NUM_CHANNELS_OUT > 0
#define MINIAUDIO_IMPLEMENTATION
#define MA_NO_RUNTIME_LINKING
#include "miniaudio.h"
#define BLOCK_SIZE 32
#endif
#define NUM_BUFS (NUM_CHANNELS_IN > NUM_CHANNELS_OUT ? NUM_CHANNELS_IN : NUM_CHANNELS_OUT)
#if NUM_CHANNELS_IN + NUM_CHANNELS_OUT > 0
static ma_device device;
#endif
static plugin instance;
static void *mem;
#if (NUM_NON_OPT_CHANNELS_IN > NUM_CHANNELS_IN) || (NUM_NON_OPT_CHANNELS_OUT > NUM_CHANNELS_OUT)
@ -94,7 +89,7 @@ static void data_callback(ma_device* pDevice, void* pOutput, const void* pInput,
const float * in_buf = reinterpret_cast<const float *>(pInput);
#endif
float * out_buf = reinterpret_cast<float *>(pOutput);
#if NUM_CHANNELS_IN + NUM_CHANNELS_OUT > 0
ma_uint32 i = 0;
#if NUM_CHANNELS_IN > 0
size_t ix = 0;
@ -124,6 +119,10 @@ static void data_callback(ma_device* pDevice, void* pOutput, const void* pInput,
#endif
i += n;
}
#else
for (ma_uint32 i = 0; i < frameCount; i++)
out_buf[i] = 0.f; // Unique fake channel
#endif
}
#if (NUM_MIDI_INPUTS > 0)
@ -171,6 +170,9 @@ char audioStart() {
# else
ma_device_config deviceConfig = ma_device_config_init(ma_device_type_duplex);
# endif
#else
ma_device_config deviceConfig = ma_device_config_init(ma_device_type_playback);
#endif
deviceConfig.periodSizeInFrames = BLOCK_SIZE;
deviceConfig.periods = 1;
@ -186,13 +188,15 @@ char audioStart() {
deviceConfig.capture.shareMode = ma_share_mode_shared;
deviceConfig.playback.pDeviceID = NULL;
deviceConfig.playback.format = ma_format_f32;
#if NUM_CHANNELS_IN + NUM_CHANNELS_OUT > 0
deviceConfig.playback.channels = NUM_CHANNELS_OUT;
#else
deviceConfig.playback.channels = 1; // Fake & muted
#endif
deviceConfig.playback.shareMode = ma_share_mode_shared;
if (ma_device_init(NULL, &deviceConfig, &device) != MA_SUCCESS)
return false;
#endif
#if (NUM_MIDI_INPUTS > 0)
if (midiClientName == NULL) {
@ -238,9 +242,7 @@ char audioStart() {
mem = malloc(req);
if (mem == NULL) {
plugin_fini(&instance);
#if NUM_CHANNELS_IN + NUM_CHANNELS_OUT > 0
ma_device_uninit(&device);
#endif
return false;
}
plugin_mem_set(&instance, mem);
@ -303,23 +305,19 @@ char audioStart() {
y = NULL;
#endif
#if NUM_CHANNELS_IN + NUM_CHANNELS_OUT > 0
if (ma_device_start(&device) != MA_SUCCESS) {
if (mem != NULL)
free(mem);
ma_device_uninit(&device);
return false;
}
#endif
return true;
}
extern "C"
void audioStop() {
#if NUM_CHANNELS_IN + NUM_CHANNELS_OUT > 0
ma_device_stop(&device);
ma_device_uninit(&device);
#endif
if (mem != NULL)
free(mem);
plugin_fini(&instance);