The open source OpenXR runtime
xrt: Add visibility mask interface
authored by
Jakob Bornecrantz
and committed by
Simon Zeni
69afb627
a77e35fd
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src/xrt/include/xrt/xrt_defines.h
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src/xrt/include/xrt/xrt_defines.h
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XRT_FORM_FACTOR_HANDHELD, //!< Handheld display.
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};
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/*!
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* Visibility mask, mirror of XrVisibilityMaskKHR
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*
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* @ingroup xrt_iface
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*/
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enum xrt_visibility_mask_type
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{
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XRT_VISIBILITY_MASK_TYPE_HIDDEN_TRIANGLE_MESH = 1,
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XRT_VISIBILITY_MASK_TYPE_VISIBLE_TRIANGLE_MESH = 2,
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XRT_VISIBILITY_MASK_TYPE_LINE_LOOP = 3,
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};
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#ifdef __cplusplus
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}
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#endif
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src/xrt/include/xrt/xrt_device.h
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src/xrt/include/xrt/xrt_device.h
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#pragma once
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#include "xrt/xrt_defines.h"
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#include "xrt/xrt_visibility_mask.h"
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#ifdef __cplusplus
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*/
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bool (*compute_distortion)(
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struct xrt_device *xdev, uint32_t view, float u, float v, struct xrt_uv_triplet *out_result);
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/*!
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* Get the visibility mask for this device.
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*/
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void (*get_visibility_mask)(struct xrt_device *xdev,
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enum xrt_visibility_mask_type type,
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struct xrt_visibility_mask **out_mask);
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/*!
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* Destroy device.
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src/xrt/include/xrt/xrt_visibility_mask.h
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src/xrt/include/xrt/xrt_visibility_mask.h
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// Copyright 2023, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Header defining visibility mask helper struct.
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* @author Jakob Bornecrantz <jakob@collabora.com>
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* @ingroup xrt_iface
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*/
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#pragma once
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#include "xrt/xrt_defines.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*!
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* Visibility mask helper, the indices and vertices are tightly packed after
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* this struct.
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*
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* @ingroup xrt_iface
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*/
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struct xrt_visibility_mask
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{
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enum xrt_visibility_mask_type type;
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uint32_t index_count;
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uint32_t vertex_count;
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};
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/*!
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* Visibility mask helper function to get the indices.
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*
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* @ingroup xrt_iface
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*/
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static inline uint32_t *
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xrt_visibility_mask_get_indices(const struct xrt_visibility_mask *mask)
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{
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return (uint32_t *)&mask[1];
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}
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/*!
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* Visibility mask helper function to get the vertices.
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*
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* @ingroup xrt_iface
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*/
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static inline struct xrt_vec2 *
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xrt_visibility_mask_get_vertices(const struct xrt_visibility_mask *mask)
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{
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const uint32_t *indices = xrt_visibility_mask_get_indices(mask);
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return (struct xrt_vec2 *)&indices[mask->index_count];
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}
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/*!
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* Visibility mask helper function to get the total size of the struct.
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*
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* @ingroup xrt_iface
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*/
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static inline size_t
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xrt_visibility_mask_get_size(const struct xrt_visibility_mask *mask)
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{
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return sizeof(*mask) + //
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sizeof(uint32_t) * mask->index_count + //
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sizeof(struct xrt_vec2) * mask->vertex_count; //
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}
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#ifdef __cplusplus
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}
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#endif