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authorLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-01-13 03:51:33 +0100
committerLaG1924 <12997935+LaG1924@users.noreply.github.com>2018-01-13 03:51:34 +0100
commit6f67371bb1b46579ae837d0e0c61ac1b291be743 (patch)
tree5a43692a064d84e5c5688b1b3639342555139c3c /external/include/glm/detail/func_packing.inl
parentBackported to C++14 (diff)
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Diffstat (limited to 'external/include/glm/detail/func_packing.inl')
-rw-r--r--external/include/glm/detail/func_packing.inl190
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diff --git a/external/include/glm/detail/func_packing.inl b/external/include/glm/detail/func_packing.inl
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+++ b/external/include/glm/detail/func_packing.inl
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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
+