allow destruction of surfaces

Gryphn/GryphnLoader/src/device/gryphn_physical_device.h

@@ -33,3 +33,4 @@ typedef struct gnPhysicalDevice_t {
 
 gnReturnCode gnEnumeratePhysicalDevices(gnInstance instance, uint32_t* deviceCount, gnPhysicalDevice* devices);
 gnReturnCode gnGetPhysicalDeviceProperties(gnPhysicalDevice device, gnPhysicalDeviceProperties* properties);
+gnReturnCode gnDoesDeviceSupportSurface(gnPhysicalDevice device, gnSurface surface);

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

@@ -8,10 +8,12 @@ typedef gnReturnCode (*PFN_gnCreateMetalSurface)(gnInstance, gnMetalSurfaceCreat
 typedef gnReturnCode (*PFN_enumeratePhysicalDevices)(gnInstance, uint32_t*, gnPhysicalDevice*);
 typedef gnReturnCode (*PFN_gnGetPhysicalDeviceProperties)(gnPhysicalDevice, gnPhysicalDeviceProperties*);
 typedef gnReturnCode (*PFN_gnCreateDevice)(gnInstance, gnDeviceCreateInfo*, gnDevice);
+typedef gnReturnCode (*PFN_gnDestroySurface)(gnInstance, gnSurface*);
 typedef gnReturnCode (*PFN_gnDestroyInstance)(gnInstance);
 
 typedef struct gnInstanceDispatchTable {
     PFN_gnCreateMetalSurface createMetalSurface;
+    PFN_gnDestroySurface destroySurface;
     PFN_enumeratePhysicalDevices enumeratePhysicalDevices;
     PFN_gnGetPhysicalDeviceProperties getPhysicalDeviceProperties;
     PFN_gnCreateDevice createDevice;

Gryphn/GryphnLoader/src/surface/gryphn_surface.c

@@ -0,0 +1,6 @@
+#include "gryphn_surface.h"
+#include "instance/gryphn_instance.h"
+
+gnReturnCode gnDestroySurface(gnInstance instance, gnSurface* surface) {
+    return instance->dispatchTable.destroySurface(instance, surface);
+}

Gryphn/GryphnLoader/src/surface/gryphn_surface.h

@@ -0,0 +1,4 @@
+#pragma once
+#include "gryphn_metal_surface.h"
+
+gnReturnCode gnDestroySurface(gnInstance instance, gnSurface* surface);

Gryphn/apis/GryphnMetal/src/extentions/metal_ext_surface.m

@@ -4,3 +4,8 @@ gnReturnCode metalCreateSurface(gnInstance instance, gnMetalSurfaceCreateInfo* c
     *surface = createInfo->metalLayer;
     return GN_SUCCESS;
 }
+
+gnReturnCode metalDestroySurface(gnInstance instance, gnSurface* surface) {
+    *surface = NULL;
+    return GN_SUCCESS;
+}

Gryphn/apis/GryphnMetal/src/metal.m

@@ -26,6 +26,7 @@ gnReturnCode initBackend(gnInstance instance, gnInstanceCreateInfo* info) {
     for (int i = 0; i < info->enabledExtensionCount; i++) {
         if (strcmp(info->enabledExtensions[i], "GN_EXT_surface") == 0) {
             instance->dispatchTable.createMetalSurface = metalCreateSurface;
+            instance->dispatchTable.destroySurface = metalDestroySurface;
         }
     }
 

Gryphn/apis/GryphnMetal/src/metal_functions.h

@@ -13,3 +13,4 @@ gnReturnCode metalGetPhysicalDeviceProperties(gnPhysicalDevice device, gnPhysica
 gnReturnCode metalCreateDevice(gnInstance instance, gnDeviceCreateInfo* createInfo, gnDevice device);
 gnReturnCode metalDestroyDevice(gnDevice device);
 gnReturnCode metalCreateSurface(gnInstance instance, gnMetalSurfaceCreateInfo* createInfo, gnSurface* surface);
+gnReturnCode metalDestroySurface(gnInstance instance, gnSurface* surface);

Gryphn/gryphn.h

@@ -6,7 +6,7 @@ extern "C" {
 #include "GryphnLoader/src/instance/gryphn_instance.h"
 #include "GryphnLoader/src/device/gryphn_physical_device.h"
 #include "GryphnLoader/src/device/gryphn_device.h"
-#include "GryphnLoader/src/surface/gryphn_metal_surface.h"
+#include "GryphnLoader/src/surface/gryphn_surface.h"
 #ifdef __cplusplus
 }
 #endif

main.mm

@@ -112,6 +112,7 @@ int main() {
         return 0;
     }
     glfwDestroyWindow(window);
+    gnDestroySurface(instance, &surface);
     gnDestroyDevice(&device);
     gnDestroyInstance(&instance);
 }