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Vulkan: Simplify loader using DynamicLibrary

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This commit is contained in:
Stenzek
2024-05-15 00:18:49 +10:00
parent 88ace6e4ae
commit 8e3284d8c6
9 changed files with 109 additions and 139 deletions
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138
src/util/vulkan_loader.cpp
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@ -7,6 +7,7 @@
#include "vulkan_loader.h"
#include "common/assert.h"
#include "common/dynamic_library.h"
#include "common/log.h"
#include <cstdarg>
@ -15,14 +16,6 @@
#include <cstring>
#include <string>
#ifndef _WIN32
#include <dlfcn.h>
#endif
#ifdef __APPLE__
#include <mach-o/dyld.h>
#endif
Log_SetChannel(VulkanDevice);
extern "C" {
@ -47,134 +40,51 @@ void Vulkan::ResetVulkanLibraryFunctionPointers()
#undef VULKAN_MODULE_ENTRY_POINT
}
#if defined(_WIN32)
static HMODULE s_vulkan_module;
static DynamicLibrary s_vulkan_library;
bool Vulkan::IsVulkanLibraryLoaded()
{
return s_vulkan_module != NULL;
return s_vulkan_library.IsOpen();
}
bool Vulkan::LoadVulkanLibrary()
bool Vulkan::LoadVulkanLibrary(Error* error)
{
AssertMsg(!s_vulkan_module, "Vulkan module is not loaded.");
AssertMsg(!s_vulkan_library.IsOpen(), "Vulkan module is not loaded.");
s_vulkan_module = LoadLibraryA("vulkan-1.dll");
if (!s_vulkan_module)
{
Log_ErrorPrintf("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(s_vulkan_module, name);
if (!(*func_ptr) && is_required)
{
Log_ErrorPrintf("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 "vulkan_entry_points.inl"
#undef VULKAN_MODULE_ENTRY_POINT
if (required_functions_missing)
{
ResetVulkanLibraryFunctionPointers();
FreeLibrary(s_vulkan_module);
s_vulkan_module = nullptr;
return false;
}
return true;
}
void Vulkan::UnloadVulkanLibrary()
{
ResetVulkanLibraryFunctionPointers();
if (s_vulkan_module)
FreeLibrary(s_vulkan_module);
s_vulkan_module = nullptr;
}
#else
static void* s_vulkan_module;
bool Vulkan::IsVulkanLibraryLoaded()
{
return s_vulkan_module != nullptr;
}
bool Vulkan::LoadVulkanLibrary()
{
AssertMsg(!s_vulkan_module, "Vulkan module is not loaded.");
#if defined(__APPLE__)
#ifdef __APPLE__
// Check if a path to a specific Vulkan library has been specified.
char* libvulkan_env = getenv("LIBVULKAN_PATH");
if (libvulkan_env)
s_vulkan_module = dlopen(libvulkan_env, RTLD_NOW);
if (!s_vulkan_module)
s_vulkan_library.Open(libvulkan_env, error);
if (!s_vulkan_library.IsOpen() &&
!s_vulkan_library.Open(DynamicLibrary::GetVersionedFilename("MoltenVK").c_str(), error))
{
unsigned path_size = 0;
_NSGetExecutablePath(nullptr, &path_size);
std::string path;
path.resize(path_size);
if (_NSGetExecutablePath(path.data(), &path_size) == 0)
{
path[path_size] = 0;
size_t pos = path.rfind('/');
if (pos != std::string::npos)
{
path.erase(pos);
path += "/../Frameworks/libMoltenVK.dylib";
s_vulkan_module = dlopen(path.c_str(), RTLD_NOW);
}
}
return false;
}
if (!s_vulkan_module)
s_vulkan_module = dlopen("libvulkan.dylib", 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 < sizeof(search_lib_names) / sizeof(search_lib_names[0]); i++)
// try versioned first, then unversioned.
if (!s_vulkan_library.Open(DynamicLibrary::GetVersionedFilename("vulkan", 1).c_str(), error) &&
!s_vulkan_library.Open(DynamicLibrary::GetVersionedFilename("vulkan").c_str(), error))
{
s_vulkan_module = dlopen(search_lib_names[i], RTLD_NOW);
if (s_vulkan_module)
break;
return false;
}
#endif
if (!s_vulkan_module)
{
Log_ErrorPrintf("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(s_vulkan_module, name);
if (!(*func_ptr) && is_required)
{
Log_ErrorPrintf("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);
#define VULKAN_MODULE_ENTRY_POINT(name, required) \
if (!s_vulkan_library.GetSymbol(#name, &name)) \
{ \
Log_ErrorFmt("Vulkan: Failed to load required module function {}", #name); \
required_functions_missing = true; \
}
#include "vulkan_entry_points.inl"
#undef VULKAN_MODULE_ENTRY_POINT
if (required_functions_missing)
{
ResetVulkanLibraryFunctionPointers();
dlclose(s_vulkan_module);
s_vulkan_module = nullptr;
s_vulkan_library.Close();
return false;
}
@ -184,13 +94,9 @@ bool Vulkan::LoadVulkanLibrary()
void Vulkan::UnloadVulkanLibrary()
{
ResetVulkanLibraryFunctionPointers();
if (s_vulkan_module)
dlclose(s_vulkan_module);
s_vulkan_module = nullptr;
s_vulkan_library.Close();
}
#endif
bool Vulkan::LoadVulkanInstanceFunctions(VkInstance instance)
{
bool required_functions_missing = false;