From 27b9405eeafd599ae7949b0b5adc68ea48990d05 Mon Sep 17 00:00:00 2001
From: Greg Wells <gregory@Gregs-MacBook-Pro.local>
Date: Fri, 30 May 2025 11:21:49 -0400
Subject: [PATCH] kinda a metal semaphore class

---
 .../metal/src/core/sync/semaphore/metal_semaphore.h |  7 +++++++
 .../metal/src/core/sync/semaphore/metal_semaphore.m | 13 +++++++++++++
 2 files changed, 20 insertions(+)
 create mode 100644 rendering_api/metal/src/core/sync/semaphore/metal_semaphore.h
 create mode 100644 rendering_api/metal/src/core/sync/semaphore/metal_semaphore.m

diff --git a/rendering_api/metal/src/core/sync/semaphore/metal_semaphore.h b/rendering_api/metal/src/core/sync/semaphore/metal_semaphore.h
new file mode 100644
index 0000000..f359699
--- /dev/null
+++ b/rendering_api/metal/src/core/sync/semaphore/metal_semaphore.h
@@ -0,0 +1,7 @@
+#pragma once
+#include "core/sync/semaphore/gryphn_semaphore.h"
+#import <Metal/MTLEvent.h>
+
+typedef struct gnPlatformSemaphore_t {
+    id<MTLEvent> event;
+} gnPlatformSemaphore;
diff --git a/rendering_api/metal/src/core/sync/semaphore/metal_semaphore.m b/rendering_api/metal/src/core/sync/semaphore/metal_semaphore.m
new file mode 100644
index 0000000..342e73a
--- /dev/null
+++ b/rendering_api/metal/src/core/sync/semaphore/metal_semaphore.m
@@ -0,0 +1,13 @@
+#include "metal_semaphore.h"
+#include "core/devices/metal_output_devices.h"
+
+gnReturnCode gnCreateSemaphoreFn(struct gnSemaphore_t* semaphore, struct gnOutputDevice_t* device) {
+    semaphore->semaphore = malloc(sizeof(gnPlatformSemaphore));
+    semaphore->semaphore->event = [device->outputDevice->device newEvent];
+
+    return GN_SUCCESS;
+}
+void gnDestroySemaphoreFn(struct gnSemaphore_t* semaphore) {
+    [semaphore->semaphore->event release];
+    free(semaphore->semaphore);
+}