From fd3b5c38814b4d1462a6d374cc47f81b3ee4aecc Mon Sep 17 00:00:00 2001
From: Swung0x48 <swung0x48@outlook.com>
Date: Mon, 10 Nov 2025 15:49:26 +0800
Subject: [PATCH] [Fix] (MG_Impl/GL_Sync): fix compilation error on msvc

---
 MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.cpp | 24 ++++++++++++++++++------
 1 file changed, 18 insertions(+), 6 deletions(-)

diff --git a/MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.cpp b/MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.cpp
index 0d2b9143..226ddad7 100644
--- a/MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.cpp
+++ b/MobileGL/MG_Impl/GLImpl/Sync/GL_Sync.cpp
@@ -4,21 +4,33 @@
 
 namespace MobileGL {
     namespace MG_Impl::GLImpl {
-        GLsync FenceSync_Backend(GLenum condition, GLbitfield flags) {}
+        GLsync FenceSync_Backend(GLenum condition, GLbitfield flags) {
+            return 0;
+        }
 
-        GLenum ClientWaitSync_Backend(GLsync sync, GLbitfield flags, GLuint64 timeout) {}
+        GLenum ClientWaitSync_Backend(GLsync sync, GLbitfield flags, GLuint64 timeout) {
+            return 0;
+        }
 
         void DeleteSync_Backend(GLsync sync) {}
 
-        GLsync FenceSync_State(GLenum condition, GLbitfield flags) {}
+        GLsync FenceSync_State(GLenum condition, GLbitfield flags) {
+            return 0;
+        }
 
-        GLenum ClientWaitSync_State(GLsync sync, GLbitfield flags, GLuint64 timeout) {}
+        GLenum ClientWaitSync_State(GLsync sync, GLbitfield flags, GLuint64 timeout) {
+            return 0;
+        }
 
         void DeleteSync_State(GLsync sync) {}
 
-        GLsync FenceSync(GLenum condition, GLbitfield flags) {}
+        GLsync FenceSync(GLenum condition, GLbitfield flags) {
+            return 0;
+        }
 
-        GLenum ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) {}
+        GLenum ClientWaitSync(GLsync sync, GLbitfield flags, GLuint64 timeout) {
+            return 0;
+        }
 
         void DeleteSync(GLsync sync) {}
     } // namespace MG_Impl::GLImpl