The open source OpenXR runtime
xrt: Add xrt_swapchain_create_properties and related function
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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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* Struct used to negotiate properties of a swapchain that is created outside
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* of the compositor. Often used by a client compositor or IPC layer to allocate
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* the swapchain images and then pass them into the native compositor.
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*/
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struct xrt_swapchain_create_properties
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{
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//! How many images the compositor want in the swapchain.
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uint32_t image_count;
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};
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/*!
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* Session information, mostly overlay extension data.
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*/
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struct xrt_session_info
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* Capabilities and recommended values information.
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*/
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struct xrt_compositor_info info;
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/*!
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* For a given @ref xrt_swapchain_create_info struct returns a filled
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* out @ref xrt_swapchain_create_properties.
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*/
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xrt_result_t (*get_swapchain_create_properties)(struct xrt_compositor *xc,
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const struct xrt_swapchain_create_info *info,
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struct xrt_swapchain_create_properties *xsccp);
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/*!
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* Create a swapchain with a set of images.
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*/
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void (*destroy)(struct xrt_compositor *xc);
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};
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/*!
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* @copydoc xrt_compositor::get_swapchain_create_properties
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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_compositor
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*/
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static inline xrt_result_t
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xrt_comp_get_swapchain_create_properties(struct xrt_compositor *xc,
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const struct xrt_swapchain_create_info *info,
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struct xrt_swapchain_create_properties *xsccp)
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{
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return xc->get_swapchain_create_properties(xc, info, xsccp);
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}
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/*!
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* @copydoc xrt_compositor::create_swapchain