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- /*
- * Copyright (C) 2021 Christopher J. Howard
- *
- * This file is part of Antkeeper source code.
- *
- * Antkeeper source code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Antkeeper source code is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Antkeeper source code. If not, see <http://www.gnu.org/licenses/>.
- */
-
- #include "animation/pose.hpp"
- #include "math/transform-operators.hpp"
- #include "math/transform-functions.hpp"
-
- void concatenate(const pose& bone_space, pose& skeleton_space)
- {
- for (auto&& [bone, transform]: bone_space)
- {
- auto parent_index = bone_parent_index(bone);
-
- if (parent_index != bone_index(bone))
- {
- auto parent = skeleton_space.find(parent_index);
- skeleton_space[bone] = (parent != skeleton_space.end()) ? parent->second * transform : transform;
- }
- else
- {
- skeleton_space[bone] = transform;
- }
- }
- }
-
- void inverse(const pose& x, pose& y)
- {
- for (auto&& [bone, transform]: x)
- {
- y[bone] = math::inverse(transform);
- }
- }
-
- void matrix_palette(const pose& inverse_bind_pose, const pose& pose, float4x4* palette)
- {
- for (auto&& [bone, transform]: pose)
- {
- std::uint8_t index = ::bone_index(bone);
- palette[index] = math::matrix_cast(inverse_bind_pose.at(bone) * transform);
- }
- }
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