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h/mercury: Split lm_rotations into two files to make copyright ownership clear
This commit is contained in:
Moshi Turner
parent
7485afbeaa
commit
4ccc133ac5
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@ -1,39 +1,12 @@
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// Copyright 2022, Google, Inc.
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// Copyright 2022, Collabora, Ltd.
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// SPDX-License-Identifier: BSD-3-Clause
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief Autodiff-safe rotations for Levenberg-Marquardt kinematic optimizer.
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* Copied out of Ceres's `rotation.h` with some modifications.
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* @author Kier Mierle <kier@google.com>
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* @author Sameer Agarwal <sameeragarwal@google.com>
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* @author Moses Turner <moses@collabora.com>
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* @ingroup tracking
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*/
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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#pragma once
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#include <algorithm>
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@ -68,102 +41,7 @@ namespace xrt::tracking::hand::mercury::lm {
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#define assert_quat_length_1(q)
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#endif
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template <typename T>
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inline void
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QuaternionProduct(const Quat<T> &z, const Quat<T> &w, Quat<T> &zw)
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{
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// Inplace product is not supported
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assert(&z != &zw);
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assert(&w != &zw);
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assert_quat_length_1(z);
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assert_quat_length_1(w);
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// clang-format off
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zw.w = z.w * w.w - z.x * w.x - z.y * w.y - z.z * w.z;
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zw.x = z.w * w.x + z.x * w.w + z.y * w.z - z.z * w.y;
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zw.y = z.w * w.y - z.x * w.z + z.y * w.w + z.z * w.x;
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zw.z = z.w * w.z + z.x * w.y - z.y * w.x + z.z * w.w;
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// clang-format on
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}
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template <typename T>
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inline void
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UnitQuaternionRotatePoint(const Quat<T> &q, const Vec3<T> &pt, Vec3<T> &result)
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{
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// clang-format off
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T uv0 = q.y * pt.z - q.z * pt.y;
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T uv1 = q.z * pt.x - q.x * pt.z;
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T uv2 = q.x * pt.y - q.y * pt.x;
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uv0 += uv0;
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uv1 += uv1;
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uv2 += uv2;
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result.x = pt.x + q.w * uv0;
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result.y = pt.y + q.w * uv1;
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result.z = pt.z + q.w * uv2;
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result.x += q.y * uv2 - q.z * uv1;
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result.y += q.z * uv0 - q.x * uv2;
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result.z += q.x * uv1 - q.y * uv0;
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// clang-format on
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}
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template <typename T>
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inline void
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UnitQuaternionRotateAndScalePoint(const Quat<T> &q, const Vec3<T> &pt, const T scale, Vec3<T> &result)
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{
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T uv0 = q.y * pt.z - q.z * pt.y;
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T uv1 = q.z * pt.x - q.x * pt.z;
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T uv2 = q.x * pt.y - q.y * pt.x;
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uv0 += uv0;
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uv1 += uv1;
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uv2 += uv2;
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result.x = pt.x + q.w * uv0;
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result.y = pt.y + q.w * uv1;
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result.z = pt.z + q.w * uv2;
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result.x += q.y * uv2 - q.z * uv1;
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result.y += q.z * uv0 - q.x * uv2;
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result.z += q.x * uv1 - q.y * uv0;
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result.x *= scale;
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result.y *= scale;
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result.z *= scale;
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}
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template <typename T>
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inline void
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AngleAxisToQuaternion(const Vec3<T> angle_axis, Quat<T> &result)
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{
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const T &a0 = angle_axis.x;
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const T &a1 = angle_axis.y;
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const T &a2 = angle_axis.z;
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const T theta_squared = a0 * a0 + a1 * a1 + a2 * a2;
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// For points not at the origin, the full conversion is numerically stable.
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if (likely(theta_squared > T(0.0))) {
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const T theta = sqrt(theta_squared);
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const T half_theta = theta * T(0.5);
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const T k = sin(half_theta) / theta;
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result.w = cos(half_theta);
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result.x = a0 * k;
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result.y = a1 * k;
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result.z = a2 * k;
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} else {
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// At the origin, sqrt() will produce NaN in the derivative since
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// the argument is zero. By approximating with a Taylor series,
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// and truncating at one term, the value and first derivatives will be
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// computed correctly when Jets are used.
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const T k(0.5);
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result.w = T(1.0);
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result.x = a0 * k;
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result.y = a1 * k;
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result.z = a2 * k;
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}
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}
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#include "lm_rotations_ceres.inl"
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template <typename T>
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133
src/xrt/tracking/hand/mercury/kine_lm/lm_rotations_ceres.inl
Normal file
133
src/xrt/tracking/hand/mercury/kine_lm/lm_rotations_ceres.inl
Normal file
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@ -0,0 +1,133 @@
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// Copyright 2022, Google, Inc.
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// Copyright 2022, Collabora, Ltd.
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// SPDX-License-Identifier: BSD-3-Clause
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/*!
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* @file
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* @brief Autodiff-safe rotations for Levenberg-Marquardt kinematic optimizer.
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* Copied out of Ceres's `rotation.h` with some modifications.
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* @author Kier Mierle <kier@google.com>
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* @author Sameer Agarwal <sameeragarwal@google.com>
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* @author Moses Turner <moses@collabora.com>
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* @ingroup tracking
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*/
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of Google Inc. nor the names of its contributors may be
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// used to endorse or promote products derived from this software without
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// specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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template <typename T>
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inline void
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QuaternionProduct(const Quat<T> &z, const Quat<T> &w, Quat<T> &zw)
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{
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// Inplace product is not supported
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assert(&z != &zw);
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assert(&w != &zw);
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assert_quat_length_1(z);
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assert_quat_length_1(w);
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// clang-format off
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zw.w = z.w * w.w - z.x * w.x - z.y * w.y - z.z * w.z;
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zw.x = z.w * w.x + z.x * w.w + z.y * w.z - z.z * w.y;
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zw.y = z.w * w.y - z.x * w.z + z.y * w.w + z.z * w.x;
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zw.z = z.w * w.z + z.x * w.y - z.y * w.x + z.z * w.w;
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// clang-format on
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}
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template <typename T>
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inline void
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UnitQuaternionRotatePoint(const Quat<T> &q, const Vec3<T> &pt, Vec3<T> &result)
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{
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// clang-format off
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T uv0 = q.y * pt.z - q.z * pt.y;
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T uv1 = q.z * pt.x - q.x * pt.z;
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T uv2 = q.x * pt.y - q.y * pt.x;
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uv0 += uv0;
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uv1 += uv1;
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uv2 += uv2;
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result.x = pt.x + q.w * uv0;
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result.y = pt.y + q.w * uv1;
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result.z = pt.z + q.w * uv2;
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result.x += q.y * uv2 - q.z * uv1;
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result.y += q.z * uv0 - q.x * uv2;
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result.z += q.x * uv1 - q.y * uv0;
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// clang-format on
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}
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template <typename T>
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inline void
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UnitQuaternionRotateAndScalePoint(const Quat<T> &q, const Vec3<T> &pt, const T scale, Vec3<T> &result)
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{
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T uv0 = q.y * pt.z - q.z * pt.y;
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T uv1 = q.z * pt.x - q.x * pt.z;
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T uv2 = q.x * pt.y - q.y * pt.x;
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uv0 += uv0;
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uv1 += uv1;
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uv2 += uv2;
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result.x = pt.x + q.w * uv0;
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result.y = pt.y + q.w * uv1;
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result.z = pt.z + q.w * uv2;
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result.x += q.y * uv2 - q.z * uv1;
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result.y += q.z * uv0 - q.x * uv2;
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result.z += q.x * uv1 - q.y * uv0;
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result.x *= scale;
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result.y *= scale;
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result.z *= scale;
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}
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template <typename T>
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inline void
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AngleAxisToQuaternion(const Vec3<T> angle_axis, Quat<T> &result)
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{
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const T &a0 = angle_axis.x;
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const T &a1 = angle_axis.y;
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const T &a2 = angle_axis.z;
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const T theta_squared = a0 * a0 + a1 * a1 + a2 * a2;
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// For points not at the origin, the full conversion is numerically stable.
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if (likely(theta_squared > T(0.0))) {
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const T theta = sqrt(theta_squared);
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const T half_theta = theta * T(0.5);
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const T k = sin(half_theta) / theta;
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result.w = cos(half_theta);
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result.x = a0 * k;
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result.y = a1 * k;
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result.z = a2 * k;
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} else {
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// At the origin, sqrt() will produce NaN in the derivative since
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// the argument is zero. By approximating with a Taylor series,
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// and truncating at one term, the value and first derivatives will be
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// computed correctly when Jets are used.
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const T k(0.5);
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result.w = T(1.0);
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result.x = a0 * k;
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result.y = a1 * k;
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result.z = a2 * k;
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}
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}
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