mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-27 06:34:11 +00:00
d56d8ac707
It seems my eeepc's SSE units don't get quite the same answers as does my i7's (maybe due to lack of hadd?).
279 lines
9 KiB
C
279 lines
9 KiB
C
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include "QF/mathlib.h"
|
|
#include "QF/mersenne.h"
|
|
#include "QF/sys.h"
|
|
#include "QF/simd/vec4f.h"
|
|
|
|
#define SIZEOF(x) (sizeof(x) / sizeof(x[0]))
|
|
|
|
const vec4f_t points[] = {
|
|
{-1, -1, 1, 1},
|
|
{ 1, 1, 1, 1},
|
|
{-1, 1, -1, 1},
|
|
{ 1, -1, -1, 1},
|
|
{-1, -1, -1, 1},
|
|
{ 1, 1, -1, 1},
|
|
{-1, 1, 1, 1},
|
|
{ 1, -1, 1, 1},
|
|
{ 0, 0, 0, 1},
|
|
};
|
|
|
|
// This particular triangle from ad_tears caused SEB to hit its iteration
|
|
// limit because the center in affine hull test failed due to excessivly tight
|
|
// epsilon. Yes, a rather insanely small triangle for a quake map. Probably
|
|
// due to qfbsp not culling the portal for being too small.
|
|
const vec4f_t tears_triangle[] = {
|
|
{2201.82007, -1262, -713.450012, 1},
|
|
{2201.8501, -1262, -713.593994, 1},
|
|
{2201.84009, -1262, -713.445007, 1},
|
|
};
|
|
const vec4f_t tears_triangle2[] = {
|
|
{-519.989014, 1111.94995, -2592.05005, 1},
|
|
{-520.002991, 1112, -2592.02002, 1},
|
|
{-520.005005, 1112, -2592.04004, 1},
|
|
};
|
|
const vec4f_t tears_triangle3[] = {
|
|
{284, 624, 2959.76001, 1},
|
|
{284, 624, 2960, 1},
|
|
{284.234985, 624.471008, 2959.53003, 1},
|
|
};
|
|
|
|
const vec4f_t tears_quad[] = {
|
|
{1792, 1155.53003, 240, 1},
|
|
{1792, 1030.32996, 240, 1},
|
|
{1792.01001, 1030.32996, 240, 1},
|
|
{1792.01001, 1155.53003, 240, 1},
|
|
};
|
|
|
|
const vec4f_t tears_quad2[] = {
|
|
{304, 3248, 3208, 1},
|
|
{-61.2307014, 3248, 3208, 1},
|
|
{-61.2307014, 3248, 3192, 1},
|
|
{304, 3248, 3192, 1},
|
|
};
|
|
|
|
const vec4f_t tears_cluster[] = {
|
|
{551.638, -439.277008, 2804.63989, 1},
|
|
{551, -438, 2806.02002, 1},
|
|
{555.999023, -447.998993, 2805.1499, 1},
|
|
{555.999023, -447.998993, 2804.32007, 1},
|
|
{551.638, -439.277008, 2804.63989, 1},
|
|
{555.999023, -447.998993, 2804.32007, 1},
|
|
{555.999023, -447.998993, 2795.19995, 1},
|
|
{550.97699, -437.954987, 2806.02002, 1},
|
|
{551, -438, 2806.02002, 1},
|
|
{555.999023, -447.998993, 2795.19995, 1},
|
|
{555.999023, -447.998993, 2794.6499, 1},
|
|
{550.978027, -437.954987, 2806.02002, 1},
|
|
{545.945984, -442.945007, 2804.78003, 1},
|
|
{546, -442.998993, 2804.77002, 1},
|
|
{546, -443, 2804.69995, 1},
|
|
{546, -443, 2804.78003, 1},
|
|
{545.945007, -442.945007, 2804.78003, 1},
|
|
{556, -448, 2794.6499, 1},
|
|
{556, -448, 2805.1499, 1},
|
|
{546, -443, 2804.78003, 1},
|
|
{546, -443, 2804.69995, 1},
|
|
{550.97699, -437.954987, 2806.02002, 1},
|
|
{556, -448, 2794.6499, 1},
|
|
{546.000977, -443, 2804.69995, 1},
|
|
{545.945007, -442.945007, 2804.78003, 1},
|
|
};
|
|
|
|
const vec4f_t tears_cluster2[] = {
|
|
{-2160, -192, -704.242004, 1},
|
|
{-2160, -192, -662, 1},
|
|
{-2160, -196, -658, 1},
|
|
{-2160, -220, -646, 1},
|
|
{-2160, -222.332001, -645.416992, 1},
|
|
{-2160, -320, -752, 1},
|
|
{-2160, -192, -752, 1},
|
|
{-2160, -192, -704.242004, 1},
|
|
{-2160, -222.332001, -645.416992, 1},
|
|
{-2160, -244, -640, 1},
|
|
{-2160, -268, -640, 1},
|
|
{-2160, -292, -646, 1},
|
|
{-2160, -316, -658, 1},
|
|
{-2160, -320, -662, 1},
|
|
{-2160, -196, -814, 1},
|
|
{-2160, -192, -810, 1},
|
|
{-2160, -192, -752, 1},
|
|
{-2160, -320, -752, 1},
|
|
{-2160, -320, -810, 1},
|
|
{-2160, -316, -814, 1},
|
|
{-2160, -312, -816, 1},
|
|
{-2160, -200, -816, 1},
|
|
{-2174, -334, -676, 1},
|
|
{-2186, -346, -700, 1},
|
|
{-2192, -352, -724, 1},
|
|
{-2192, -352, -748, 1},
|
|
{-2186, -346, -772, 1},
|
|
{-2174, -334, -796, 1},
|
|
{-2160, -319.998993, -810, 1},
|
|
{-2160, -319.998993, -661.999023, 1},
|
|
{-2174, -178, -796, 1},
|
|
{-2186, -166, -772, 1},
|
|
{-2192, -160, -748, 1},
|
|
{-2192, -160, -724, 1},
|
|
{-2186, -166, -700, 1},
|
|
{-2174, -178, -676, 1},
|
|
{-2160, -192, -662, 1},
|
|
{-2160, -192, -810, 1},
|
|
{-2224, -320, -810, 1},
|
|
{-2224, -330, -800, 1},
|
|
{-2224, -320, -800, 1},
|
|
{-2224, -200, -816, 1},
|
|
{-2224, -312, -816, 1},
|
|
{-2224, -316, -814, 1},
|
|
{-2224, -320, -810, 1},
|
|
{-2224, -320, -800, 1},
|
|
{-2224, -192, -800, 1},
|
|
{-2224, -192, -810, 1},
|
|
{-2224, -196, -814, 1},
|
|
{-2224, -192, -800, 1},
|
|
{-2224, -182, -800, 1},
|
|
{-2224, -192, -810, 1},
|
|
{-2224, -330, -800, 1},
|
|
{-2224, -334, -796, 1},
|
|
{-2224, -178, -796, 1},
|
|
{-2224, -182, -800, 1},
|
|
{-2224, -334, -796, 1},
|
|
{-2224, -346, -772, 1},
|
|
{-2224, -351, -752, 1},
|
|
{-2224, -161, -752, 1},
|
|
{-2224, -166, -772, 1},
|
|
{-2224, -178, -796, 1},
|
|
{-2224, -351, -752, 1},
|
|
{-2224, -352, -748, 1},
|
|
{-2224, -352, -724, 1},
|
|
{-2224, -351, -720, 1},
|
|
{-2224, -161, -720, 1},
|
|
{-2224, -160, -724, 1},
|
|
{-2224, -160, -748, 1},
|
|
{-2224, -161, -752, 1},
|
|
{-2224, -351, -720, 1},
|
|
{-2224, -346, -700, 1},
|
|
{-2224, -334, -676, 1},
|
|
{-2224, -316, -658, 1},
|
|
{-2224, -292, -646, 1},
|
|
{-2224, -268, -640, 1},
|
|
{-2224, -244, -640, 1},
|
|
{-2224, -220, -646, 1},
|
|
{-2224, -196, -658, 1},
|
|
{-2224, -178, -676, 1},
|
|
{-2224, -166, -700, 1},
|
|
{-2224, -161, -720, 1},
|
|
};
|
|
|
|
// random numbers dug this up. needed more than 6 iterations
|
|
const vec4f_t cloud_points[] = {
|
|
{1.70695281, 2.60889673, 2.86233163, 1},
|
|
{2.11825109, 2.59883952, 1.48193693, 1},
|
|
{2.76728868, 1.57646465, 2.39769602, 1},
|
|
{1.88795376, 2.73980999, 1.58031297, 1},
|
|
{2.79736757, 1.89582968, 1.80514407, 1},
|
|
};
|
|
|
|
struct {
|
|
const vec4f_t *points;
|
|
int num_points;
|
|
vspheref_t expect;
|
|
} tests[] = {
|
|
{0, 0, {{ 0, 0, 0, 1}, 0}},
|
|
{points, 1, {{-1, -1, 1, 1}, 0}},
|
|
{points, 2, {{ 0, 0, 1, 1}, 1.41421356}},
|
|
{points, 3, {{-0.333333343, 0.333333343, 0.333333343, 1}, 1.63299322}},
|
|
{points, 4, {{0, 0, 0, 1}, 1.73205081}},
|
|
{tears_triangle, SIZEOF (tears_triangle),
|
|
{{2201.84521, -1262, -713.519531}, 0.0747000724}},//FIXME numbers?
|
|
{tears_cluster, SIZEOF (tears_cluster),
|
|
{{552.678101, -443.460876, 2800.40405}, 8.04672813}},//FIXME numbers?
|
|
{tears_quad, SIZEOF (tears_quad),
|
|
{{1792.005, 1092.92999, 240}, 62.6000302}},
|
|
{tears_triangle2, SIZEOF (tears_triangle2),
|
|
{{-519.995972, 1111.97498, -2592.03516}, 0.0300767105}},//FIXME numbers?
|
|
{tears_quad2, SIZEOF (tears_quad2),
|
|
{{121.384659, 3248, 3200}, 182.790497}},
|
|
{tears_triangle3, SIZEOF (tears_triangle3),
|
|
{{284.117493, 624.235535, 2959.76489}, 0.352925777}},
|
|
{tears_cluster2, SIZEOF (tears_cluster2),
|
|
{{-2192, -256.000031, -736}, 103.479492}},//FIXME numbers?
|
|
{cloud_points, SIZEOF (cloud_points),
|
|
{{2.20056152, 2.23369908, 2.2332375}, 0.88327992}},
|
|
};
|
|
#define num_tests SIZEOF (tests)
|
|
|
|
static inline float
|
|
rnd (mtstate_t *mt)
|
|
{
|
|
union {
|
|
uint32_t u;
|
|
float f;
|
|
} uf;
|
|
|
|
do {
|
|
uf.u = mtwist_rand (mt) & 0x007fffff;
|
|
} while (!uf.u);
|
|
uf.u |= 0x40000000;
|
|
return uf.f - 1.0;
|
|
}
|
|
|
|
int
|
|
main (int argc, const char **argv)
|
|
{
|
|
int res = 0;
|
|
size_t i, j;
|
|
vspheref_t sphere;
|
|
mtstate_t mt;
|
|
double start, end;
|
|
|
|
for (i = 0; i < num_tests; i ++) {
|
|
sphere = SmallestEnclosingBall_vf (tests[i].points,
|
|
tests[i].num_points);
|
|
if (VectorDistance_fast (sphere.center, tests[i].expect.center) > 2e-4
|
|
|| fabs (sphere.radius - tests[i].expect.radius) > 2e-4) {
|
|
res = 1;
|
|
printf ("test %d failed\n", (int) i);
|
|
printf ("expect: {%.9g, %.9g, %.9g}, %.9g\n",
|
|
VectorExpand (tests[i].expect.center),
|
|
tests[i].expect.radius);
|
|
printf ("got : {%.9g, %.9g, %.9g}, %.9g\n",
|
|
VectorExpand (sphere.center),
|
|
sphere.radius);
|
|
}
|
|
}
|
|
|
|
mtwist_seed (&mt, 0);
|
|
start = Sys_DoubleTime ();
|
|
for (i = 0; !res && i < 1000000; i++) {
|
|
vec4f_t cloud[10];
|
|
vspheref_t seb;
|
|
vec_t r2;
|
|
|
|
for (j = 0; j < 5; j++) {
|
|
VectorSet (rnd (&mt), rnd (&mt), rnd (&mt), cloud[j]);
|
|
cloud[j][3] = 1;
|
|
}
|
|
seb = SmallestEnclosingBall_vf (cloud, 5);
|
|
r2 = seb.radius * seb.radius;
|
|
for (j = 0; j < 5; j++) {
|
|
if (VectorDistance_fast (cloud[j], seb.center) - r2
|
|
> 1e-5 * r2) {
|
|
res = 1;
|
|
printf ("%d %.9g - %.9g = %.9g\n", (int)j,
|
|
VectorDistance_fast (cloud[j], seb.center), r2,
|
|
VectorDistance_fast (cloud[j], seb.center) - r2);
|
|
printf ("[%.9g %.9g %.9g] - [%.9g %.9g %.9g] = %.9g > %.9g\n",
|
|
VectorExpand (cloud[j]), VectorExpand (seb.center),
|
|
VectorDistance_fast (cloud[j], seb.center), r2);
|
|
}
|
|
}
|
|
}
|
|
end = Sys_DoubleTime ();
|
|
printf ("%d iterations in %gs: %g iters/second\n", (int) i, end - start,
|
|
i / (end - start));
|
|
return res;
|
|
}
|