fix: hide symbols by default

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

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)

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();
 
 }

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();
 
 }

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);

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