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Cocoa: Add basic support for Vulkan via MoltenVK

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This adds basic support for MoltenVK, a Vulkan implementation on top of
Metal, on macOS 10.11 and later.  It looks for MoltenVK in the process
via RTLD_DEFAULT symbol lookup if _GLFW_VULKAN_STATIC is disabled.

glfwCreateWindowSurface now creates and sets a CAMetalLayer for the
window content view, which is required for MoltenVK to function.

You must help CMake find MoltenVK for the Vulkan test to be built.

Fixes #870.
This commit is contained in:
Camilla Berglund
2016-10-14 01:46:56 +02:00
parent c3db1cae3f
commit e94d16667b
12 changed files with 182 additions and 22 deletions
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docs/compat.dox
+10 -8
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@@ -185,10 +185,11 @@ a non-default value will cause @ref glfwCreateWindow to fail and the
@section compat_vulkan Vulkan loader and API
GLFW uses the standard system-wide Vulkan loader to access the Vulkan API.
This should be installed by graphics drivers and Vulkan SDKs. If this is not
available, @ref glfwVulkanSupported will return `GLFW_FALSE` and all other
Vulkan-related functions will fail with an @ref GLFW_API_UNAVAILABLE error.
By default, GLFW uses the standard system-wide Vulkan loader to access the
Vulkan API on all platforms except macOS. This is installed by both graphics
drivers and Vulkan SDKs. If the loader is not found, @ref glfwVulkanSupported
will return `GLFW_FALSE` and all other Vulkan-related functions will fail with
an @ref GLFW_API_UNAVAILABLE error.
@section compat_wsi Vulkan WSI extensions
@@ -201,6 +202,11 @@ surfaces on Microsoft Windows. If any of these extensions are not available,
@ref glfwGetRequiredInstanceExtensions will return an empty list and window
surface creation will fail.
GLFW uses the `VK_KHR_surface` and `VK_MVK_macos_surface` extensions to create
surfaces on macOS. If any of these extensions are not available, @ref
glfwGetRequiredInstanceExtensions will return an empty list and window surface
creation will fail.
GLFW uses the `VK_KHR_surface` and either the `VK_KHR_xlib_surface` or
`VK_KHR_xcb_surface` extensions to create surfaces on X11. If `VK_KHR_surface`
or both `VK_KHR_xlib_surface` and `VK_KHR_xcb_surface` are not available, @ref
@@ -217,8 +223,4 @@ surfaces on Mir. If any of these extensions are not available, @ref
glfwGetRequiredInstanceExtensions will return an empty list and window surface
creation will fail.
GLFW does not support any extensions for window surface creation on macOS,
meaning@ref glfwGetRequiredInstanceExtensions will return an empty list and
window surface creation will fail.
*/