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81 lines
1.7 KiB
C
81 lines
1.7 KiB
C
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// Copyright 2019, 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 Code to generate disortion meshes.
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* @author Jakob Bornecrantz <jakob@collabora.com>
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* @ingroup aux_util
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*/
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#pragma once
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#include "xrt/xrt_device.h"
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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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* Values to create a distortion mesh from panotools values.
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*
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* @ingroup aux_util
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*/
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struct u_panotools_values
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{
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//! Panotools universal distortion k (reverse order from OpenHMD).
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float distortion_k[5];
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//! Panotools post distortion scale, <r, g, b>.
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float aberration_k[3];
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//! Panotools warp scale.
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float scale;
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//! Center of the lens.
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struct xrt_vec2 lens_center;
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//! Viewport size.
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struct xrt_vec2 viewport_size;
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};
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/*!
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* Callback used when generating a distortion mesh.
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*
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* @ingroup aux_util
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*/
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typedef void (*u_distortion_mesh_func)(
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int view, float x, float y, float result[8], void *user_ptr);
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/*!
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* Given a callback and a user_ptr generates num_views meshes.
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*
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* @ingroup aux_util
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*/
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void
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u_distortion_mesh_from_func(u_distortion_mesh_func func,
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void *user_ptr,
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int num_views,
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struct xrt_hmd_parts *target);
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/*!
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* Given two sets of panotools values creates the left and th right uv meshes.
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*
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* @ingroup aux_util
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*/
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void
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u_distortion_mesh_from_panotools(const struct u_panotools_values *left,
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const struct u_panotools_values *right,
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struct xrt_hmd_parts *target);
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/*!
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* Create two distortion meshes with no distortion.
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*
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* @ingroup aux_util
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*/
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void
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u_distortion_mesh_none(struct xrt_hmd_parts *target);
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#ifdef __cplusplus
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}
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#endif
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