#include "sh/sh_common.h"

#define PI      3.14159265359
#define GOLDEN  1.61803398875

#define DECL(t, n) t n : n
#define NURI(i) NonUniformResourceIndex(i)

#if !SH_CPU
# define INLINE  /* For intellisense */
#endif

/* Linear color from normalized sRGB */
INLINE float4 linear_from_srgb(float4 srgb)
{
    return float4(pow(srgb.rgb, 2.2), srgb.a);
}

/* Linear color from R8G8B8A8 sRGB  */
INLINE float4 linear_from_srgb32(uint srgb32)
{
    float4 res;
    res.r = ((srgb32 >> 0) & 0xFF) / 255.0;
    res.g = ((srgb32 >> 8) & 0xFF) / 255.0;
    res.b = ((srgb32 >> 16) & 0xFF) / 255.0;
    res.a = ((srgb32 >> 24) & 0xFF) / 255.0;
    return linear_from_srgb(res);
}