Add native WebP support on macOS (Bug#59242)

* src/image.c (syms_of_image)
[HAVE_NATIVE_IMAGE_API && HAVE_NS && NS_IMPL_COCOA]:
Add webp as an image type.
* src/nsimage.m (ns_can_use_native_image_api)
[NS_IMPL_COCOA && !HAVE_WEBP]: Add webp to list of possible image
types in the native image support lookup.

2 files changed, 8 insertions, 2 deletions

diff --git a/src/image.c b/src/image.c
index f2079fab6a3..7019bbf31be 100644
--- a/src/image.c
+++ b/src/image.c
@@ -12834,8 +12834,10 @@ non-numeric, there is no explicit limit on the size of images.  */);
   add_image_type (Qpng);
 #endif
 
-#if defined (HAVE_WEBP) || (defined (HAVE_NATIVE_IMAGE_API) \
-                            && defined (HAVE_HAIKU))
+#if defined (HAVE_WEBP)                                         \
+  || (defined (HAVE_NATIVE_IMAGE_API)                           \
+      && ((defined (HAVE_NS) && defined (NS_IMPL_COCOA))        \
+          || defined (HAVE_HAIKU)))
   DEFSYM (Qwebp, "webp");
   DEFSYM (Qwebpdemux, "webpdemux");
   add_image_type (Qwebp);
diff --git a/src/nsimage.m b/src/nsimage.m
index af8eb629989..b33124900bb 100644
--- a/src/nsimage.m
+++ b/src/nsimage.m
@@ -78,6 +78,10 @@ ns_can_use_native_image_api (Lisp_Object type)
   else if (EQ (type, Qsvg))
     imageType = @"public.svg-image";
 #endif
+#ifndef HAVE_WEBP
+  else if (EQ (type, Qwebp))
+    imageType = @"org.webmproject.webp";
+#endif
   else if (EQ (type, Qheic))
     imageType = @"public.heic";