destroy device lifecycle

Gryphn/GryphnLoader/src/device/gryphn_device.c

@@ -9,3 +9,9 @@ gnReturnCode gnCreateDevice(gnInstance instance, gnDeviceCreateInfo* createInfo,
     *device = newDevice;
     return instance->dispatchTable.createDevice(instance, createInfo, newDevice);
 }
+
+gnReturnCode gnDestroyDevice(gnDevice* device) {
+    gnReturnCode returnCode = (*device)->dispatchTable.destroyDevice(*device);
+    *device = NULL;
+    return returnCode;
+}

Gryphn/GryphnLoader/src/device/gryphn_device.h

@@ -13,3 +13,4 @@ typedef struct gnDevice_t {
 } gnDevice_t;
 
 gnReturnCode gnCreateDevice(gnInstance instance, gnDeviceCreateInfo* createInfo, gnDevice* device);
+gnReturnCode gnDestroyDevice(gnDevice* device);

Gryphn/GryphnLoader/src/instance/dispatch/gryphn_device_dispatch_table.h

@@ -1,7 +1,8 @@
 #pragma once
 #include "gryphn_handle.h"
 
+typedef gnReturnCode (*PFN_gnDestroyDevice)(gnDevice);
 
 typedef struct gnDeviceDispatchTable {
-
+    PFN_gnDestroyDevice destroyDevice;
 } gnDeviceDispatchTable;

Gryphn/apis/GryphnMetal/src/metal_device.m

@@ -57,6 +57,12 @@ gnReturnCode metalGetPhysicalDeviceProperties(gnPhysicalDevice device, gnPhysica
 }
 
 gnReturnCode metalCreateDevice(gnInstance instance, gnDeviceCreateInfo* createInfo, gnDevice device) {
+    device->dispatchTable.destroyDevice = metalDestroyDevice;
     device->internalData = createInfo->physicalDevice->internalData;
     return GN_SUCCESS;
 }
+
+gnReturnCode metalDestroyDevice(gnDevice device) {
+    // [device->internalData release];
+    return GN_SUCCESS;
+}

Gryphn/apis/GryphnMetal/src/metal_functions.h

@@ -8,3 +8,4 @@
 gnReturnCode metalEnumeratePhysicalDevices(gnInstance instance, uint32_t* deviceCount, gnPhysicalDevice* devices);
 gnReturnCode metalGetPhysicalDeviceProperties(gnPhysicalDevice device, gnPhysicalDeviceProperties* properties);
 gnReturnCode metalCreateDevice(gnInstance instance, gnDeviceCreateInfo* createInfo, gnDevice device);
+gnReturnCode metalDestroyDevice(gnDevice device);

main.cpp

@@ -68,5 +68,6 @@ int main() {
         std::cerr << "Caught Exception: " << e.what() << "\n";
         return 0;
     }
+    gnDestroyDevice(&device);
     gnDestroyInstance(&instance);
 }