From 60ccaac64d5159f412f56ee7b303817bce614a0c Mon Sep 17 00:00:00 2001
From: PancakeTAS <pancake@mgnet.work>
Date: Wed, 30 Jul 2025 17:46:39 +0200
Subject: [PATCH] fix: hide symbols by default

---
 CMakeLists.txt                | 2 ++
 framegen/CMakeLists.txt       | 3 +++
 framegen/public/lsfg_3_1.hpp  | 5 +++++
 framegen/public/lsfg_3_1p.hpp | 5 +++++
 include/layer.hpp             | 2 ++
 src/main.cpp                  | 4 +++-
 6 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index b9ad34f..bcd40a8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 3.10)
 
 set(CMAKE_SKIP_RPATH ON)
+set(CMAKE_C_VISIBILITY_PRESET "hidden")
+set(CMAKE_CXX_VISIBILITY_PRESET "hidden")
 
 # subprojects
 add_compile_options(-fPIC
diff --git a/framegen/CMakeLists.txt b/framegen/CMakeLists.txt
index be88d62..c2e9ac9 100644
--- a/framegen/CMakeLists.txt
+++ b/framegen/CMakeLists.txt
@@ -1,5 +1,8 @@
 cmake_minimum_required(VERSION 3.10)
 
+set(CMAKE_C_VISIBILITY_PRESET "hidden")
+set(CMAKE_CXX_VISIBILITY_PRESET "hidden")
+
 project(lsfg-vk-framegen
     DESCRIPTION "Lossless Scaling Frame Generation Backend"
     LANGUAGES CXX)
diff --git a/framegen/public/lsfg_3_1.hpp b/framegen/public/lsfg_3_1.hpp
index ae8b86e..40a60b5 100644
--- a/framegen/public/lsfg_3_1.hpp
+++ b/framegen/public/lsfg_3_1.hpp
@@ -20,6 +20,7 @@ namespace LSFG_3_1 {
     ///
     /// @throws LSFG::vulkan_error if Vulkan objects fail to initialize.
     ///
+    __attribute__((visibility("default")))
     void initialize(uint64_t deviceUUID,
         bool isHdr, float flowScale, uint64_t generationCount,
         const std::function<std::vector<uint8_t>(const std::string&)>& loader);
@@ -36,6 +37,7 @@ namespace LSFG_3_1 {
     ///
     /// @throws LSFG::vulkan_error if the context cannot be created.
     ///
+    __attribute__((visibility("default")))
     int32_t createContext(
         int in0, int in1, const std::vector<int>& outN,
         VkExtent2D extent, VkFormat format);
@@ -49,6 +51,7 @@ namespace LSFG_3_1 {
     ///
     /// @throws LSFG::vulkan_error if the context cannot be presented.
     ///
+    __attribute__((visibility("default")))
     void presentContext(int32_t id, int inSem, const std::vector<int>& outSem);
 
     ///
@@ -56,11 +59,13 @@ namespace LSFG_3_1 {
     ///
     /// @param id Unique identifier of the context to delete.
     ///
+    __attribute__((visibility("default")))
     void deleteContext(int32_t id);
 
     ///
     /// Deinitialize the LSFG library.
     ///
+    __attribute__((visibility("default")))
     void finalize();
 
 }
diff --git a/framegen/public/lsfg_3_1p.hpp b/framegen/public/lsfg_3_1p.hpp
index 27417ce..fb7f725 100644
--- a/framegen/public/lsfg_3_1p.hpp
+++ b/framegen/public/lsfg_3_1p.hpp
@@ -20,6 +20,7 @@ namespace LSFG_3_1P {
     ///
     /// @throws LSFG::vulkan_error if Vulkan objects fail to initialize.
     ///
+    __attribute__((visibility("default")))
     void initialize(uint64_t deviceUUID,
         bool isHdr, float flowScale, uint64_t generationCount,
         const std::function<std::vector<uint8_t>(const std::string&)>& loader);
@@ -36,6 +37,7 @@ namespace LSFG_3_1P {
     ///
     /// @throws LSFG::vulkan_error if the context cannot be created.
     ///
+    __attribute__((visibility("default")))
     int32_t createContext(
         int in0, int in1, const std::vector<int>& outN,
         VkExtent2D extent, VkFormat format);
@@ -49,6 +51,7 @@ namespace LSFG_3_1P {
     ///
     /// @throws LSFG::vulkan_error if the context cannot be presented.
     ///
+    __attribute__((visibility("default")))
     void presentContext(int32_t id, int inSem, const std::vector<int>& outSem);
 
     ///
@@ -56,11 +59,13 @@ namespace LSFG_3_1P {
     ///
     /// @param id Unique identifier of the context to delete.
     ///
+    __attribute__((visibility("default")))
     void deleteContext(int32_t id);
 
     ///
     /// Deinitialize the LSFG library.
     ///
+    __attribute__((visibility("default")))
     void finalize();
 
 }
diff --git a/include/layer.hpp b/include/layer.hpp
index ce12818..6ebe903 100644
--- a/include/layer.hpp
+++ b/include/layer.hpp
@@ -219,6 +219,8 @@ namespace Layer {
 }
 
 /// Symbol definition for Vulkan instance layer.
+__attribute__((visibility("default")))
 extern "C" PFN_vkVoidFunction layer_vkGetInstanceProcAddr(VkInstance instance, const char* pName);
 /// Symbol definition for Vulkan device layer.
+__attribute__((visibility("default")))
 extern "C" PFN_vkVoidFunction layer_vkGetDeviceProcAddr(VkDevice device, const char* pName);
diff --git a/src/main.cpp b/src/main.cpp
index ef9eb07..ac16086 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -15,7 +15,9 @@
 #include <thread>
 
 namespace {
-    __attribute__((constructor)) void lsfgvk_init() {
+    __attribute__((constructor))
+    __attribute__((visibility("default")))
+    void lsfgvk_init() {
         std::cerr << std::unitbuf;
 
         // read configuration