lovr.headset.getHandles;

CHANGES.md

@@ -61,6 +61,7 @@ dev
 - Add support for creating a `MeshShape` from a `ModelData`.
 - Add `Texture:getLabel` and `Shader:getLabel`.
 - Add `Shader:hasVariable`.
+- Add `lovr.headset.getHandles`.
 
 ### Change
 

src/api/l_headset.c

@@ -702,6 +702,16 @@ static int l_lovrHeadsetGetHands(lua_State* L) {
   return 1;
 }
 
+static int l_lovrHeadsetGetHandles(lua_State* L) {
+  if (lovrHeadsetInterface->driverType == DRIVER_OPENXR) {
+    lua_pushlightuserdata(L, (void*) lovrHeadsetInterface->getOpenXRInstanceHandle());
+    lua_pushlightuserdata(L, (void*) lovrHeadsetInterface->getOpenXRSessionHandle());
+    return 2;
+  } else {
+    return 0;
+  }
+}
+
 static const luaL_Reg lovrHeadset[] = {
   { "start", l_lovrHeadsetStart },
   { "getDriver", l_lovrHeadsetGetDriver },
@@ -754,6 +764,7 @@ static const luaL_Reg lovrHeadset[] = {
   { "getTime", l_lovrHeadsetGetTime },
   { "getDeltaTime", l_lovrHeadsetGetDeltaTime },
   { "getHands", l_lovrHeadsetGetHands },
+  { "getHandles", l_lovrHeadsetGetHandles },
   { NULL, NULL }
 };
 

src/modules/headset/headset.h

@@ -148,6 +148,8 @@ typedef struct HeadsetInterface {
   void (*getVulkanPhysicalDevice)(void* instance, uintptr_t physicalDevice);
   uint32_t (*createVulkanInstance)(void* instanceCreateInfo, void* allocator, uintptr_t instance, void* getInstanceProcAddr);
   uint32_t (*createVulkanDevice)(void* instance, void* deviceCreateInfo, void* allocator, uintptr_t device, void* getInstanceProcAddr);
+  uintptr_t (*getOpenXRInstanceHandle)(void);
+  uintptr_t (*getOpenXRSessionHandle)(void);
   bool (*init)(HeadsetConfig* config);
   void (*start)(void);
   void (*stop)(void);

src/modules/headset/headset_openxr.c

@@ -541,6 +541,14 @@ static uint32_t openxr_createVulkanDevice(void* instance, void* deviceCreateInfo
   return result;
 }
 
+static uintptr_t openxr_getOpenXRInstanceHandle(void) {
+  return (uintptr_t) state.instance;
+}
+
+static uintptr_t openxr_getOpenXRSessionHandle(void) {
+  return (uintptr_t) state.session;
+}
+
 static void openxr_destroy();
 static void openxr_setClipDistance(float clipNear, float clipFar);
 
@@ -2859,6 +2867,8 @@ HeadsetInterface lovrHeadsetOpenXRDriver = {
   .getVulkanPhysicalDevice = openxr_getVulkanPhysicalDevice,
   .createVulkanInstance = openxr_createVulkanInstance,
   .createVulkanDevice = openxr_createVulkanDevice,
+  .getOpenXRInstanceHandle = openxr_getOpenXRInstanceHandle,
+  .getOpenXRSessionHandle = openxr_getOpenXRSessionHandle,
   .init = openxr_init,
   .start = openxr_start,
   .stop = openxr_stop,