The open source OpenXR runtime
inc/xrt: Add a native handle type for graphics sync primitives
authored by
Ryan Pavlik
and committed by
Jakob Bornecrantz
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doc/changes/xrt/mr.469.2.md
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doc/changes/xrt/mr.469.2.md
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Add a native handle type for graphics sync primitives (currently file descriptors on all platforms).
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src/xrt/include/xrt/xrt_handles.h
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src/xrt/include/xrt/xrt_handles.h
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*/
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#define XRT_GRAPHICS_BUFFER_HANDLE_INVALID NULL
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-
#else
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#elif defined(XRT_OS_LINUX)
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/*!
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* The type underlying buffers shared between compositor clients and the main
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* @relates xrt_graphics_buffer_handle_t
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*/
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#define XRT_GRAPHICS_BUFFER_HANDLE_INVALID (-1)
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#else
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#error "Not yet implemented for this platform"
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#endif
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#ifdef XRT_OS_UNIX
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/*!
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* The type underlying synchronization primitives (semaphores, etc) shared
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* between compositor clients and the main compositor.
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*
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* On Linux, this is a file descriptor.
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*/
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typedef int xrt_graphics_sync_handle_t;
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/*!
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* Defined to allow detection of the underlying type.
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*
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* @relates xrt_graphics_sync_handle_t
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*/
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#define XRT_GRAPHICS_SYNC_HANDLE_IS_FD 1
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/*!
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* Check whether a graphics sync handle is valid.
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*
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* @public @memberof xrt_graphics_sync_handle_t
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*/
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static inline bool
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xrt_graphics_sync_handle_is_valid(xrt_graphics_sync_handle_t handle)
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{
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return handle >= 0;
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}
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/*!
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* An invalid value for a graphics sync primitive.
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*
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* Note that there may be more than one value that's invalid - use
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* xrt_graphics_sync_handle_is_valid() instead of comparing against this!
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*
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* @relates xrt_graphics_sync_handle_t
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*/
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#define XRT_GRAPHICS_SYNC_HANDLE_INVALID (-1)
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#elif defined(XRT_OS_WINDOWS)
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#error "Use HANDLE here, etc."
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#endif
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