diff --git a/rendering_api/metal/src/core/surface/metal_surface.h b/rendering_api/metal/src/core/surface/metal_surface.h
index 4bee575..23e5227 100644
--- a/rendering_api/metal/src/core/surface/metal_surface.h
+++ b/rendering_api/metal/src/core/surface/metal_surface.h
@@ -1,5 +1,10 @@
 #pragma once
 #include "core/window_surface/gryphn_surface.h"
+#import <QuartzCore/QuartzCore.h>
 
 typedef struct gnPlatformWindowSurface_t{
 } gnPlatformWindowSurface;
+
+
+MTLPixelFormat mtlGryphnFormatToVulkanFormat(gnImageFormat format);
+CGColorSpaceRef mtlGryphnColorSpaceToVulkanColorSpace(gnColorSpace colorSpace);
diff --git a/rendering_api/metal/src/core/surface/metal_surface.m b/rendering_api/metal/src/core/surface/metal_surface.m
index 65f24f8..fc2af32 100644
--- a/rendering_api/metal/src/core/surface/metal_surface.m
+++ b/rendering_api/metal/src/core/surface/metal_surface.m
@@ -21,3 +21,16 @@ gnReturnCode gnCreateMacOSWindowSurfaceFn(struct gnWindowSurface_t* windowSurfac
     windowSurface->windowSurface = malloc(sizeof(gnPlatformWindowSurface));
     return GN_SUCCESS;
 }
+
+MTLPixelFormat mtlGryphnFormatToVulkanFormat(gnImageFormat format) {
+    switch (format) {
+    case GN_FORMAT_BGRA8_SRGB: { return MTLPixelFormatBGRA8Unorm_sRGB; }
+    default: return MTLPixelFormatInvalid;
+    }
+}
+
+CGColorSpaceRef mtlGryphnColorSpaceToVulkanColorSpace(gnColorSpace colorSpace) {
+    switch (colorSpace) {
+    case GN_COLOR_SPACE_SRGB_NONLINEAR: { return CGColorSpaceCreateWithName(kCGColorSpaceSRGB); }
+    }
+}