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/// @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
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