start the process of making sync objects an extension

projects/extensions/synchronization/fence/gryphn_fence.c

@@ -0,0 +1,28 @@
+// #ifdef GN_EXT_GN_EXT_SYNCHRONIZATION
+
+#include "gryphn_fence.h"
+#include "output_device/gryphn_output_device.h"
+#include "instance/gryphn_instance.h"
+
+gnReturnCode gnCreateFence(gnFenceHandle* fence, gnDevice device) {
+    *fence = malloc(sizeof(struct gnFence_t));
+    (*fence)->device = device;
+    (*fence)->signaled = gnFalse;
+    return device->instance->callingLayer->deviceFunctions._gnCreateFence(*fence, device);
+}
+void gnSignalFence(gnFenceHandle fence) {
+    fence->signaled = gnTrue;
+}
+void gnWaitForFence(gnFenceHandle fence, uint64_t timeout) {
+    if (fence->signaled == gnTrue) return;
+    fence->device->instance->callingLayer->deviceFunctions._gnWaitForFence(fence, timeout);
+}
+void gnResetFence(gnFenceHandle fence) {
+    fence->signaled = gnFalse;
+    fence->device->instance->callingLayer->deviceFunctions._gnResetFence(fence);
+}
+void gnDestroyFence(gnFenceHandle fence) {
+    fence->device->instance->callingLayer->deviceFunctions._gnDestroyFence(fence);
+}
+
+// #endif

projects/extensions/synchronization/fence/gryphn_fence.h

@@ -0,0 +1,20 @@
+#pragma once
+#include <utils/gryphn_bool.h>
+#include "utils/gryphn_error_code.h"
+#include "utils/lists/gryphn_array_list.h"
+#include "gryphn_handles.h"
+
+#ifdef GN_REVEAL_IMPL
+struct gnFence_t {
+    struct gnPlatformFence_t* fence;
+    gnOutputDeviceHandle device;
+    gnBool signaled;
+};
+#endif
+GN_ARRAY_LIST(gnFence);
+
+gnReturnCode gnCreateFence(gnFenceHandle* fence, gnOutputDeviceHandle device);
+void gnSignalFence(gnFenceHandle fence);
+void gnWaitForFence(gnFenceHandle fence, uint64_t timeout);
+void gnResetFence(gnFenceHandle fence);
+void gnDestroyFence(gnFenceHandle fence);