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Vulkan: Support macOS via MoltenVK

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The path to the MoltenVK library can be specified by the
LIBMOLTENVK_PATH environment variable, otherwise it assumes it is
located in the application bundle's Contents/MacOS directory.
This commit is contained in:
Stenzek
2018-05-31 04:23:45 -07:00
parent c7a2b1572b
commit 673f1963a0
9 changed files with 101 additions and 24 deletions
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23
Source/Core/VideoBackends/Vulkan/VulkanLoader.cpp
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@ -4,8 +4,10 @@
#include <atomic>
#include <cstdarg>
#include <cstdlib>
#include "Common/CommonFuncs.h"
#include "Common/FileUtil.h"
#include "Common/Logging/Log.h"
#include "Common/StringUtil.h"
@ -14,7 +16,8 @@
#if defined(VK_USE_PLATFORM_WIN32_KHR)
#include <Windows.h>
#elif defined(VK_USE_PLATFORM_XLIB_KHR) || defined(VK_USE_PLATFORM_XCB_KHR) || \
defined(VK_USE_PLATFORM_ANDROID_KHR) || defined(USE_HEADLESS)
defined(VK_USE_PLATFORM_ANDROID_KHR) || defined(VK_USE_PLATFORM_MACOS_MVK) || \
defined(USE_HEADLESS)
#include <dlfcn.h>
#endif
@ -98,7 +101,8 @@ void UnloadVulkanLibrary()
}
#elif defined(VK_USE_PLATFORM_XLIB_KHR) || defined(VK_USE_PLATFORM_XCB_KHR) || \
defined(VK_USE_PLATFORM_ANDROID_KHR) || defined(USE_HEADLESS)
defined(VK_USE_PLATFORM_ANDROID_KHR) || defined(VK_USE_PLATFORM_MACOS_MVK) || \
defined(USE_HEADLESS)
static void* vulkan_module;
static std::atomic_int vulkan_module_ref_count = {0};
@ -112,15 +116,27 @@ bool LoadVulkanLibrary()
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)
{
@ -164,6 +180,7 @@ void UnloadVulkanLibrary()
dlclose(vulkan_module);
vulkan_module = nullptr;
}
#else
//#warning Unknown platform, not compiling loader.