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author | LaG1924 <12997935+LaG1924@users.noreply.github.com> | 2017-05-12 15:49:50 +0200 |
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committer | LaG1924 <12997935+LaG1924@users.noreply.github.com> | 2017-05-12 15:49:50 +0200 |
commit | e62817b8252974b8a98393275874ee303840bf13 (patch) | |
tree | 4565935f06e369f4a84410b0c098958e07a750c7 /depedencies/include/glm/detail/func_packing.inl | |
parent | 2017-05-10 (diff) | |
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Diffstat (limited to 'depedencies/include/glm/detail/func_packing.inl')
-rw-r--r-- | depedencies/include/glm/detail/func_packing.inl | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/depedencies/include/glm/detail/func_packing.inl b/depedencies/include/glm/detail/func_packing.inl new file mode 100644 index 0000000..505c80a --- /dev/null +++ b/depedencies/include/glm/detail/func_packing.inl @@ -0,0 +1,190 @@ +/// @ref core +/// @file glm/detail/func_packing.inl + +#include "func_common.hpp" +#include "type_half.hpp" +#include "../fwd.hpp" + +namespace glm +{ + GLM_FUNC_QUALIFIER uint packUnorm2x16(vec2 const & v) + { + union + { + u16 in[2]; + uint out; + } u; + + u16vec2 result(round(clamp(v, 0.0f, 1.0f) * 65535.0f)); + + u.in[0] = result[0]; + u.in[1] = result[1]; + + return u.out; + } + + GLM_FUNC_QUALIFIER vec2 unpackUnorm2x16(uint p) + { + union + { + uint in; + u16 out[2]; + } u; + + u.in = p; + + return vec2(u.out[0], u.out[1]) * 1.5259021896696421759365224689097e-5f; + } + + GLM_FUNC_QUALIFIER uint packSnorm2x16(vec2 const & v) + { + union + { + i16 in[2]; + uint out; + } u; + + i16vec2 result(round(clamp(v, -1.0f, 1.0f) * 32767.0f)); + + u.in[0] = result[0]; + u.in[1] = result[1]; + + return u.out; + } + + GLM_FUNC_QUALIFIER vec2 unpackSnorm2x16(uint p) + { + union + { + uint in; + i16 out[2]; + } u; + + u.in = p; + + return clamp(vec2(u.out[0], u.out[1]) * 3.0518509475997192297128208258309e-5f, -1.0f, 1.0f); + } + + GLM_FUNC_QUALIFIER uint packUnorm4x8(vec4 const & v) + { + union + { + u8 in[4]; + uint out; + } u; + + u8vec4 result(round(clamp(v, 0.0f, 1.0f) * 255.0f)); + + u.in[0] = result[0]; + u.in[1] = result[1]; + u.in[2] = result[2]; + u.in[3] = result[3]; + + return u.out; + } + + GLM_FUNC_QUALIFIER vec4 unpackUnorm4x8(uint p) + { + union + { + uint in; + u8 out[4]; + } u; + + u.in = p; + + return vec4(u.out[0], u.out[1], u.out[2], u.out[3]) * 0.0039215686274509803921568627451f; + } + + GLM_FUNC_QUALIFIER uint packSnorm4x8(vec4 const & v) + { + union + { + i8 in[4]; + uint out; + } u; + + i8vec4 result(round(clamp(v, -1.0f, 1.0f) * 127.0f)); + + u.in[0] = result[0]; + u.in[1] = result[1]; + u.in[2] = result[2]; + u.in[3] = result[3]; + + return u.out; + } + + GLM_FUNC_QUALIFIER glm::vec4 unpackSnorm4x8(uint p) + { + union + { + uint in; + i8 out[4]; + } u; + + u.in = p; + + return clamp(vec4(u.out[0], u.out[1], u.out[2], u.out[3]) * 0.0078740157480315f, -1.0f, 1.0f); + } + + GLM_FUNC_QUALIFIER double packDouble2x32(uvec2 const & v) + { + union + { + uint in[2]; + double out; + } u; + + u.in[0] = v[0]; + u.in[1] = v[1]; + + return u.out; + } + + GLM_FUNC_QUALIFIER uvec2 unpackDouble2x32(double v) + { + union + { + double in; + uint out[2]; + } u; + + u.in = v; + + return uvec2(u.out[0], u.out[1]); + } + + GLM_FUNC_QUALIFIER uint packHalf2x16(vec2 const & v) + { + union + { + i16 in[2]; + uint out; + } u; + + u.in[0] = detail::toFloat16(v.x); + u.in[1] = detail::toFloat16(v.y); + + return u.out; + } + + GLM_FUNC_QUALIFIER vec2 unpackHalf2x16(uint v) + { + union + { + uint in; + i16 out[2]; + } u; + + u.in = v; + + return vec2( + detail::toFloat32(u.out[0]), + detail::toFloat32(u.out[1])); + } +}//namespace glm + +#if GLM_ARCH != GLM_ARCH_PURE && GLM_HAS_UNRESTRICTED_UNIONS +# include "func_packing_simd.inl" +#endif + |