The open source OpenXR runtime
xrt: Add image transition inteface
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src/xrt/include/xrt/xrt_compositor.h
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src/xrt/include/xrt/xrt_compositor.h
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};
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/*!
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* The direction of a transition.
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*/
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enum xrt_barrier_direction
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{
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XRT_BARRIER_TO_APP = 1,
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XRT_BARRIER_TO_COMP = 2,
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};
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/*!
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* @interface xrt_swapchain
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*
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* Common swapchain interface/base.
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xrt_result_t (*wait_image)(struct xrt_swapchain *xsc, uint64_t timeout_ns, uint32_t index);
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/*!
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* Do any barrier transitions to and from the application.
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*
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* @param xsc Self pointer
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* @param direction Direction of the barrier transition.
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* @param index Image index to barrier transition.
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*/
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xrt_result_t (*barrier_image)(struct xrt_swapchain *xsc, enum xrt_barrier_direction direction, uint32_t index);
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/*!
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* See xrReleaseSwapchainImage, state tracker needs to track index.
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*/
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xrt_result_t (*release_image)(struct xrt_swapchain *xsc, uint32_t index);
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xrt_swapchain_wait_image(struct xrt_swapchain *xsc, uint64_t timeout_ns, uint32_t index)
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{
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return xsc->wait_image(xsc, timeout_ns, index);
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}
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/*!
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* @copydoc xrt_swapchain::barrier_image
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*
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* Helper for calling through the function pointer.
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*
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* @public @memberof xrt_swapchain
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*/
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static inline xrt_result_t
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xrt_swapchain_barrier_image(struct xrt_swapchain *xsc, enum xrt_barrier_direction direction, uint32_t index)
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{
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return xsc->barrier_image(xsc, direction, index);
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}
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/*!