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80 lines
1.7 KiB
C++
80 lines
1.7 KiB
C++
// This code is in the public domain -- castano@gmail.com
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#pragma once
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#ifndef NV_MATH_PACKEDFLOAT_H
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#define NV_MATH_PACKEDFLOAT_H
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#include "nvmath.h"
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#include "Vector.h"
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namespace nv
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{
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union FloatRGB9E5 {
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uint32 v;
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struct {
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#if NV_BIG_ENDIAN
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uint32 e : 5;
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uint32 zm : 9;
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uint32 ym : 9;
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uint32 xm : 9;
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#else
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uint32 xm : 9;
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uint32 ym : 9;
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uint32 zm : 9;
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uint32 e : 5;
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#endif
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};
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};
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union FloatR11G11B10 {
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uint32 v;
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struct {
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#if NV_BIG_ENDIAN
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uint32 ze : 5;
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uint32 zm : 5;
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uint32 ye : 5;
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uint32 ym : 6;
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uint32 xe : 5;
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uint32 xm : 6;
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#else
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uint32 xm : 6;
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uint32 xe : 5;
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uint32 ym : 6;
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uint32 ye : 5;
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uint32 zm : 5;
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uint32 ze : 5;
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#endif
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};
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};
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union FloatRGBE8 {
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uint32 v;
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struct {
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#if NV_LITTLE_ENDIAN
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uint8 r, g, b, e;
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#else
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uint8 e: 8;
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uint8 b: 8;
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uint8 g: 8;
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uint8 r: 8;
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#endif
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};
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};
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Vector3 rgb9e5_to_vector3(FloatRGB9E5 v);
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FloatRGB9E5 vector3_to_rgb9e5(const Vector3 & v);
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float float11_to_float32(uint v);
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float float10_to_float32(uint v);
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Vector3 r11g11b10_to_vector3(FloatR11G11B10 v);
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FloatR11G11B10 vector3_to_r11g11b10(const Vector3 & v);
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Vector3 rgbe8_to_vector3(FloatRGBE8 v);
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FloatRGBE8 vector3_to_rgbe8(const Vector3 & v);
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} // nv
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#endif // NV_MATH_PACKEDFLOAT_H
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