Devices WIP

src/api/l_audio.c

@@ -120,21 +120,20 @@ static int l_lovrAudioCapture(lua_State* L) {
   return 1;
 }
 
-static int l_lovrAudioSetCaptureDevice(lua_State *L) {
-  //
-
-  return 0;
+static int l_lovrAudioGetDevices(lua_State *L) {
+  AudioDevice *devices;
+  size_t count;
+  lovrAudioGetDevices(&devices, &count);
+  for(int i = 0; i < count; i++) {
+    lua_pushstring(L, devices[i].name);
+  }
+  return count;
 }
 
-static int l_lovrAudioGetCaptureDevice(lua_State *L) {
-  //
+static int l_lovrUseDevice(lua_State *L) {
 
-  return 0;
-}
+  //lovrAudioUseDevice()
 
-static int l_lovrAudioListCaptureDevices(lua_State *L) {
-  //
-  
   return 0;
 }
 
@@ -148,9 +147,8 @@ static const luaL_Reg lovrAudio[] = {
   { "setListenerPose", l_lovrAudioSetListenerPose },
   { "capture", l_lovrAudioCapture },
   { "getCaptureDuration", l_lovrAudioGetCaptureDuration },
-  { "setCaptureDevice", l_lovrAudioSetCaptureDevice },
-  { "getCaptureDevice", l_lovrAudioGetCaptureDevice },
-  { "listCaptureDevices", l_lovrAudioListCaptureDevices },
+  { "getDevices", l_lovrAudioGetDevices },
+  { "useDevice", l_lovrUseDevice },
   { NULL, NULL }
 };
 

src/modules/audio/audio.c

@@ -44,6 +44,8 @@ static struct {
   ma_pcm_rb captureRingbuffer;
   arr_t(ma_data_converter) converters;
   Spatializer* spatializer;
+
+  AudioDevice *deviceInfos;
 } state;
 
 // Device callbacks
@@ -437,4 +439,22 @@ struct SoundData* lovrAudioCapture(uint32_t frameCount, SoundData *soundData, ui
   }
 
   return soundData;
+}
+
+void lovrAudioGetDevices(AudioDevice **outDevices, size_t *outCount) {
+  if(state.deviceInfos) 
+    free(state.deviceInfos);
+  
+  ma_result gettingStatus = ma_context_get_devices(&state.context, NULL, NULL, NULL, NULL);
+  lovrAssert(gettingStatus == MA_SUCCESS, "Failed to enumerate audio devices: %d", gettingStatus);
+  *outCount = state.context.playbackDeviceInfoCount + state.context.captureDeviceInfoCount;
+  state.deviceInfos = calloc(*outCount, sizeof(AudioDevice));
+  for(int i = 0; i < *outCount; i++) {
+    ma_device_info *mainfo = &state.context.pDeviceInfos[i];
+    AudioDevice *lovrInfo = &state.deviceInfos[i];
+    lovrInfo->name = mainfo->name;
+    lovrInfo->type = i < state.context.playbackDeviceInfoCount ? AUDIO_PLAYBACK : AUDIO_CAPTURE;
+    lovrInfo->isDefault = mainfo->isDefault;
+    lovrInfo->identifier = &mainfo->id;
+  }
 }

src/modules/audio/audio.h

@@ -1,5 +1,6 @@
 #include <stdbool.h>
 #include <stdint.h>
+#include <stddef.h>
 
 #pragma once
 
@@ -29,6 +30,13 @@ typedef struct {
   bool start;
 } AudioConfig;
 
+typedef struct {
+  AudioType type;
+  const char *name;
+  bool isDefault;
+  void *identifier;
+} AudioDevice;
+
 #ifndef LOVR_AUDIO_SAMPLE_RATE
 #  define LOVR_AUDIO_SAMPLE_RATE 44100
 #endif
@@ -59,4 +67,7 @@ void lovrSourceSetTime(Source* source, uint32_t sample);
 struct SoundData* lovrSourceGetSoundData(Source* source);
 
 uint32_t lovrAudioGetCaptureSampleCount();
-struct SoundData* lovrAudioCapture(uint32_t sampleCount, struct SoundData *soundData, uint32_t offset);
+struct SoundData* lovrAudioCapture(uint32_t sampleCount, struct SoundData *soundData, uint32_t offset);
+
+void lovrAudioGetDevices(AudioDevice **outDevices, size_t *outCount);
+void lovrAudioUseDevice(void *identifier);