void UnloadVulkanLibrary()
{
if ((--vulkan_module_ref_count) > 0)
return;
ResetVulkanLibraryFunctionPointers();
FreeLibrary(vulkan_module);
vulkan_module = nullptr;
}
bool LoadVulkanLibrary()
{
// Not thread safe if a second thread calls the loader whilst the first is still in-progress.
if (vulkan_module)
{
vulkan_module_ref_count++;
return true;
}
// Names of libraries to search. Desktop should use libvulkan.so.1 or libvulkan.so.
static const char* search_lib_names[] = {"libvulkan.so.1", "libvulkan.so"};
for (size_t i = 0; i < ArraySize(search_lib_names); i++)
{
vulkan_module = dlopen(search_lib_names[i], RTLD_NOW);
if (vulkan_module)
break;
}
if (!vulkan_module)
{
ERROR_LOG(VIDEO, "Failed to load or locate libvulkan.so");
return false;
}
bool required_functions_missing = false;
auto LoadFunction = [&](void** func_ptr, const char* name, bool is_required) {
*func_ptr = dlsym(vulkan_module, name);
if (!(*func_ptr) && is_required)
{
ERROR_LOG(VIDEO, "Vulkan: Failed to load required module function %s", name);
required_functions_missing = true;
}
};
#define VULKAN_MODULE_ENTRY_POINT(name, required) \
LoadFunction(reinterpret_cast<void**>(&name), #name, required);
#include "VideoBackends/Vulkan/VulkanEntryPoints.inl"
#undef VULKAN_MODULE_ENTRY_POINT
if (required_functions_missing)
{
ResetVulkanLibraryFunctionPointers();
dlclose(vulkan_module);
vulkan_module = nullptr;
return false;
}
vulkan_module_ref_count++;
return true;
}
bool LoadVulkanLibrary()
{
// Not thread safe if a second thread calls the loader whilst the first is still in-progress.
if (vulkan_module)
{
vulkan_module_ref_count++;
return true;
}
vulkan_module = LoadLibraryA("vulkan-1.dll");
if (!vulkan_module)
{
ERROR_LOG(VIDEO, "Failed to load vulkan-1.dll");
return false;
}
bool required_functions_missing = false;
auto LoadFunction = [&](FARPROC* func_ptr, const char* name, bool is_required) {
*func_ptr = GetProcAddress(vulkan_module, name);
if (!(*func_ptr) && is_required)
{
ERROR_LOG(VIDEO, "Vulkan: Failed to load required module function %s", name);
required_functions_missing = true;
}
};
#define VULKAN_MODULE_ENTRY_POINT(name, required) \
LoadFunction(reinterpret_cast<FARPROC*>(&name), #name, required);
#include "VideoBackends/Vulkan/VulkanEntryPoints.inl"
#undef VULKAN_MODULE_ENTRY_POINT
if (required_functions_missing)
{
ResetVulkanLibraryFunctionPointers();
FreeLibrary(vulkan_module);
vulkan_module = nullptr;
return false;
}
vulkan_module_ref_count++;
return true;
}
void UnloadVulkanLibrary()
{
ResetVulkanLibraryFunctionPointers();
}
bool LoadVulkanLibrary()
{
// Not thread safe if a second thread calls the loader whilst the first is still in-progress.
if (vulkan_module)
{
vulkan_module_ref_count++;
return true;
}
#if defined(__APPLE__)
// Check if a path to a specific Vulkan library has been specified.
char* libvulkan_env = getenv("LIBVULKAN_PATH");
if (libvulkan_env)
vulkan_module = dlopen(libvulkan_env, RTLD_NOW);
if (!vulkan_module)
{
// Use the libvulkan.dylib from the application bundle.
std::string path = File::GetBundleDirectory() + "/Contents/Frameworks/libvulkan.dylib";
vulkan_module = dlopen(path.c_str(), RTLD_NOW);
}
#else
// Names of libraries to search. Desktop should use libvulkan.so.1 or libvulkan.so.
static const char* search_lib_names[] = {"libvulkan.so.1", "libvulkan.so"};
for (size_t i = 0; i < ArraySize(search_lib_names); i++)
{
vulkan_module = dlopen(search_lib_names[i], RTLD_NOW);
if (vulkan_module)
break;
}
#endif
if (!vulkan_module)
{
ERROR_LOG(VIDEO, "Failed to load or locate libvulkan.so");
return false;
}
bool required_functions_missing = false;
auto LoadFunction = [&](void** func_ptr, const char* name, bool is_required) {
*func_ptr = dlsym(vulkan_module, name);
if (!(*func_ptr) && is_required)
{
ERROR_LOG(VIDEO, "Vulkan: Failed to load required module function %s", name);
required_functions_missing = true;
}
};
#define VULKAN_MODULE_ENTRY_POINT(name, required) \
LoadFunction(reinterpret_cast<void**>(&name), #name, required);
#include "VideoBackends/Vulkan/VulkanEntryPoints.inl"
#undef VULKAN_MODULE_ENTRY_POINT
if (required_functions_missing)
{
ResetVulkanLibraryFunctionPointers();
dlclose(vulkan_module);
vulkan_module = nullptr;
return false;
}
vulkan_module_ref_count++;
return true;
}
