/usr/include/gegl-0.0/gegl-simd.h is in libgegl-0.0-dev 0.0.22-2ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | #ifndef __GEGL_SIMD_H__
#define __GEGL_SIMD_H__
#if defined(__GNUC__) && (__GNUC__ >= 4)
#define HAS_G4FLOAT 1
#include <math.h>
typedef float g4float __attribute__ ((vector_size (4*sizeof(float))));
#define g4float_a(a) ((float *)(&a))
#define g4floatR(a) g4float_a(a)[0]
#define g4floatG(a) g4float_a(a)[1]
#define g4floatB(a) g4float_a(a)[2]
#define g4floatA(a) g4float_a(a)[3]
#define g4float(a,b,c,d) ((g4float){a,b,c,d})
#define g4float_all(val) g4float(val,val,val,val)
#define g4float_zero g4float_all(0.0)
#define g4float_one g4float_all(1.0)
#define g4float_half g4float_all(0.5)
#define g4float_half g4float_all(0.5)
#define g4float_mul(a,val) g4float_all(val)*(a)
#ifdef USE_SSE
#define g4float_sqrt(v) __builtin_ia32_sqrtps((v))
#define g4float_max(a,b) __builtin_ia32_maxps((a,b))
#define g4float_min(a,b) __builtin_ia32_minps((a,b))
#define g4float_rcp(a,b) __builtin_ia32_rcpps((v))
#else
#define g4float_sqrt(v) g4float(sqrt(g4floatR(v)),\
sqrt(g4floatG(v)),\
sqrt(g4floatB(v)),\
sqrt(g4floatA(v)))
#define g4float_rcp(v) g4float(1.0/(g4floatR(v)),\
1.0/(g4floatG(v)),\
1.0/(g4floatB(v)),\
1.0/(g4floatA(v)))
#define g4float_max(a,b) g4float(\
gfloat4R(a)>gfloat4R(b)?gfloat4R(a):gfloat4R(b),\
gfloat4G(a)>gfloat4G(b)?gfloat4G(a):gfloat4G(b),\
gfloat4B(a)>gfloat4B(b)?gfloat4B(a):gfloat4B(b),\
gfloat4A(a)>gfloat4A(b)?gfloat4A(a):gfloat4A(b))
#define g4float_min(a,b) g4float(\
gfloat4R(a)<gfloat4R(b)?gfloat4R(a):gfloat4R(b),\
gfloat4G(a)<gfloat4G(b)?gfloat4G(a):gfloat4G(b),\
gfloat4B(a)<gfloat4B(b)?gfloat4B(a):gfloat4B(b),\
gfloat4A(a)<gfloat4A(b)?gfloat4A(a):gfloat4A(b))
#endif
#endif
#endif
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