diff options
author | Nikolas <nikolas@boutalas.com> | 2024-10-27 12:52:55 +0200 |
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committer | Nikolas <nikolas@boutalas.com> | 2024-10-27 12:52:55 +0200 |
commit | 43394c8a8908442982e3a7e25975c31b3c952923 (patch) | |
tree | 2facd563e29f48fe3b0653ac5c113998940b4d5e /3rdparty/include/glm/detail/func_packing.inl |
Diffstat (limited to '3rdparty/include/glm/detail/func_packing.inl')
-rw-r--r-- | 3rdparty/include/glm/detail/func_packing.inl | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/3rdparty/include/glm/detail/func_packing.inl b/3rdparty/include/glm/detail/func_packing.inl new file mode 100644 index 0000000..3132a27 --- /dev/null +++ b/3rdparty/include/glm/detail/func_packing.inl @@ -0,0 +1,119 @@ +/////////////////////////////////////////////////////////////////////////////////// +/// OpenGL Mathematics (glm.g-truc.net) +/// +/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net) +/// Permission is hereby granted, free of charge, to any person obtaining a copy +/// of this software and associated documentation files (the "Software"), to deal +/// in the Software without restriction, including without limitation the rights +/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +/// copies of the Software, and to permit persons to whom the Software is +/// furnished to do so, subject to the following conditions: +/// +/// The above copyright notice and this permission notice shall be included in +/// all copies or substantial portions of the Software. +/// +/// Restrictions: +/// By making use of the Software for military purposes, you choose to make +/// a Bunny unhappy. +/// +/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +/// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +/// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +/// THE SOFTWARE. +/// +/// @ref core +/// @file glm/detail/func_packing.inl +/// @date 2010-03-17 / 2011-06-15 +/// @author Christophe Riccio +/////////////////////////////////////////////////////////////////////////////////// + +#include "func_common.hpp" +#include "type_half.hpp" +#include "../fwd.hpp" + +namespace glm +{ + GLM_FUNC_QUALIFIER uint packUnorm2x16(vec2 const & v) + { + u16vec2 const Topack(round(clamp(v, 0.0f, 1.0f) * 65535.0f)); + return reinterpret_cast<uint const &>(Topack); + } + + GLM_FUNC_QUALIFIER vec2 unpackUnorm2x16(uint p) + { + vec2 Unpack(reinterpret_cast<u16vec2 const &>(p)); + return Unpack * float(1.5259021896696421759365224689097e-5); // 1.0 / 65535.0 + } + + GLM_FUNC_QUALIFIER uint packSnorm2x16(vec2 const & v) + { + i16vec2 const Topack(round(clamp(v ,-1.0f, 1.0f) * 32767.0f)); + return reinterpret_cast<uint const &>(Topack); + } + + GLM_FUNC_QUALIFIER vec2 unpackSnorm2x16(uint p) + { + vec2 const Unpack(reinterpret_cast<i16vec2 const &>(p)); + return clamp( + Unpack * 3.0518509475997192297128208258309e-5f, //1.0f / 32767.0f, + -1.0f, 1.0f); + } + + GLM_FUNC_QUALIFIER uint packUnorm4x8(vec4 const & v) + { + u8vec4 const Topack(round(clamp(v, 0.0f, 1.0f) * 255.0f)); + return reinterpret_cast<uint const &>(Topack); + } + + GLM_FUNC_QUALIFIER vec4 unpackUnorm4x8(uint p) + { + vec4 const Unpack(reinterpret_cast<u8vec4 const&>(p)); + return Unpack * float(0.0039215686274509803921568627451); // 1 / 255 + } + + GLM_FUNC_QUALIFIER uint packSnorm4x8(vec4 const & v) + { + i8vec4 const Topack(round(clamp(v ,-1.0f, 1.0f) * 127.0f)); + return reinterpret_cast<uint const &>(Topack); + } + + GLM_FUNC_QUALIFIER glm::vec4 unpackSnorm4x8(uint p) + { + vec4 const Unpack(reinterpret_cast<i8vec4 const &>(p)); + return clamp( + Unpack * 0.0078740157480315f, // 1.0f / 127.0f + -1.0f, 1.0f); + } + + GLM_FUNC_QUALIFIER double packDouble2x32(uvec2 const & v) + { + return reinterpret_cast<double const &>(v); + } + + GLM_FUNC_QUALIFIER uvec2 unpackDouble2x32(double v) + { + return reinterpret_cast<uvec2 const &>(v); + } + + GLM_FUNC_QUALIFIER uint packHalf2x16(vec2 const & v) + { + i16vec2 const Unpack( + detail::toFloat16(v.x), + detail::toFloat16(v.y)); + + return reinterpret_cast<uint const &>(Unpack); + } + + GLM_FUNC_QUALIFIER vec2 unpackHalf2x16(uint v) + { + i16vec2 const Unpack(reinterpret_cast<i16vec2 const &>(v)); + + return vec2( + detail::toFloat32(Unpack.x), + detail::toFloat32(Unpack.y)); + } +}//namespace glm + |