Keep types for the linker

gn/core.gni

@@ -214,6 +214,7 @@ skia_core_sources = [
   "$_src/c/sk_types_priv.h",
   "$_src/c/sk_vertices.cpp",
   "$_src/c/gr_context.cpp",
+  "$_src/c/sk_linker.cpp",
   "$_src/c/skottie_animation.cpp",
   "$_src/c/skresources_resource_provider.cpp",
   "$_src/c/sksg_invalidation_controller.cpp",

include/c/sk_linker.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright 2024 Microsoft Corporation. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef sk_linker_DEFINED
+#define sk_linker_DEFINED
+
+#include "include/c/sk_types.h"
+
+SK_C_PLUS_PLUS_BEGIN_GUARD
+
+SK_C_API void sk_linker_keep_alive(void);
+
+SK_C_PLUS_PLUS_END_GUARD
+
+#endif

include/c/skottie_animation.h

@@ -18,8 +18,6 @@ SK_C_PLUS_PLUS_BEGIN_GUARD
  * skottie::Animation
  */
 
-SK_C_API void skottie_animation_keepalive(void);
-
 SK_C_API skottie_animation_t* skottie_animation_make_from_string(const char* data, size_t length);
 SK_C_API skottie_animation_t* skottie_animation_make_from_data(const char* data, size_t length);
 SK_C_API skottie_animation_t* skottie_animation_make_from_stream(sk_stream_t* stream);

src/c/sk_linker.cpp

@@ -0,0 +1,25 @@
+#include "include/c/sk_linker.h"
+
+#include "src/c/sk_types_priv.h"
+
+#include "include/core/SkCubicMap.h"
+#include "include/utils/SkAnimCodecPlayer.h"
+
+#include "src/utils/SkJSON.h"
+#include "src/utils/SkOSPath.h"
+
+void sk_linker_keep_alive(void) {
+    // This function is needed on Tizen to ensure required types are kept alive
+    // It is not meant to be executed.
+
+    skjson::ObjectValue* a = nullptr;
+    auto r = (*a)["tmp"].getType();
+
+    SkCubicMap* b = nullptr;
+    (*b).computeYFromX((int)r);
+
+    SkAnimCodecPlayer* c = nullptr;
+    (*c).seek((uint32_t)123);
+
+    SkOSPath::Join(nullptr, nullptr);
+}

src/c/skottie_animation.cpp

@@ -5,24 +5,10 @@
 
 #include "src/c/sk_types_priv.h"
 
-#include "src/utils/SkJSON.h"
-#include "include/core/SkCubicMap.h"
-
 /*
  * skottie::Animation
  */
 
-void skottie_animation_keepalive(void) {
-    // This function is needed on Tizen to ensure required types are kept alive
-    // It is not meant to be executed.
-
-    skjson::ObjectValue* a = nullptr;
-    auto r = (*a)["tmp"].getType();
-
-    SkCubicMap* b = nullptr;
-    (*b).computeYFromX((int)r);
-}
-
 void skottie_animation_ref(skottie_animation_t* instance) {
     SkSafeRef(AsSkottieAnimation(instance));
 }

src/xamarin/SkiaKeeper.c

@@ -23,6 +23,7 @@
 #include "include/c/sk_graphics.h"
 #include "include/c/sk_image.h"
 #include "include/c/sk_imagefilter.h"
+#include "include/c/sk_linker.h"
 #include "include/c/sk_maskfilter.h"
 #include "include/c/sk_matrix.h"
 #include "include/c/sk_paint.h"
@@ -97,14 +98,16 @@ void** KeepSkiaCSymbols (void)
         // Animation
         (void*)skottie_animation_make_from_stream,
         (void*)sksg_invalidation_controller_new,
-        (void*)skottie_animation_keepalive,
         (void*)skresources_resource_provider_ref,
 
         // Xamarin
         (void*)sk_compatpaint_new,
         (void*)sk_managedstream_new,
         (void*)sk_manageddrawable_new,
         (void*)sk_managedtracememorydump_new,
+
+        // Linker
+        (void*)sk_linker_keep_alive,
     };
     return ret;
 }