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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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33
Source/Core/VideoBackends/Vulkan/main.cpp
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@ -24,6 +24,10 @@
#include "VideoCommon/VideoBackendBase.h"
#include "VideoCommon/VideoConfig.h"
#if defined(VK_USE_PLATFORM_MACOS_MVK)
#include <objc/message.h>
#endif
namespace Vulkan
{
void VideoBackend::InitBackendInfo()
@ -272,4 +276,33 @@ void VideoBackend::Shutdown()
ShutdownShared();
UnloadVulkanLibrary();
}
void VideoBackend::PrepareWindow(const WindowSystemInfo& wsi)
{
#if defined(VK_USE_PLATFORM_MACOS_MVK)
// This is kinda messy, but it avoids having to write Objective C++ just to create a metal layer.
id view = reinterpret_cast<id>(wsi.render_surface);
Class clsCAMetalLayer = objc_getClass("CAMetalLayer");
if (!clsCAMetalLayer)
{
ERROR_LOG(VIDEO, "Failed to get CAMetalLayer class.");
return;
}
// [CAMetalLayer layer]
id layer = reinterpret_cast<id (*)(Class, SEL)>(objc_msgSend)(objc_getClass("CAMetalLayer"),
sel_getUid("layer"));
if (!layer)
{
ERROR_LOG(VIDEO, "Failed to create Metal layer.");
return;
}
// [view setWantsLayer:YES]
reinterpret_cast<void (*)(id, SEL, BOOL)>(objc_msgSend)(view, sel_getUid("setWantsLayer:"), YES);
// [view setLayer:layer]
reinterpret_cast<void (*)(id, SEL, id)>(objc_msgSend)(view, sel_getUid("setLayer:"), layer);
#endif
}
} // namespace Vulkan