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* fix non-word in comment that seems to be the result of a search'n'replace

Browse Source 
* style adjustments

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38277 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Oliver Tappe 2010-08-19 18:00:01 +00:00
parent 98dc6a20ef
commit 9c2f1fefe0
1 changed files with 51 additions and 40 deletions
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91
src/apps/icon-o-matic/generic/support/rgb_hsv.h
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@ -1,32 +1,33 @@
/*
/*
* Copyright 2001 Werner Freytag - please read to the LICENSE file
*
*/
#ifndef CONVERT_RGB_HSV_H
#define CONVERT_RGB_HSV_H
#include <math.h>
#define RETURN_HSV(h, s, v) { H = h; S = s; V = v; return; }
#define RETURN_RGB(r, g, b) { R = r; G = g; B = b; return; }
#include <math.h>
#define UNDEFINED 0
inline void
RGB_to_HSV(float R, float G, float B, float& H, float& S, float& V)
{
// RGB are each on [0, 1]. S and max are returned on [0, 1] and H is
// returned on [0, 6]. Eminception: H is returned UNDEFINED if S==0.
// returned on [0, 6]. Exception: H is returned UNDEFINED if S==0.
float min, max;
if (R > G) {
if (R > B) {
max = R;
min = G > B ? B : G;
}
else {
} else {
max = B;
min = G;
}
@ -35,60 +36,70 @@ RGB_to_HSV(float R, float G, float B, float& H, float& S, float& V)
if (G > B) {
max = G;
min = R > B ? B : R;
}
else {
} else {
max = B;
min = R;
}
}
if (max == min) RETURN_HSV(UNDEFINED, 0, max);
if (max == min)
RETURN_HSV(UNDEFINED, 0, max);
float dist = max - min;
float f = (R == min) ? G - B : ((G == min) ? B - R : R - G);
float i = (R == min) ? 3 : ((G == min) ? 5 : 1);
float f = (R == min)
? G - B
: ((G == min) ? B - R : R - G);
float i = (R == min)
? 3
: ((G == min) ? 5 : 1);
float h = i - f / dist;
while (h >= 6.0) h -= 6.0;
RETURN_HSV(h, dist/max, max);
while (h >= 6.0)
h -= 6.0;
RETURN_HSV(h, dist/max, max);
}
inline void
HSV_to_RGB(float h, float s, float v, float& R, float& G, float& B)
{
// H is given on [0, 6] or UNDEFINED. S and V are given on [0, 1].
// RGB are each returned on [0, 1].
int i = (int)floor(h);
float f = h - i;
if ( !(i & 1) ) f = 1 - f; // if i is even
if ( !(i & 1) )
f = 1 - f; // if i is even
float m = v * (1 - s);
float n = v * (1 - s * f);
switch (i) {
case 6:
case 0: RETURN_RGB(v, n, m);
case 1: RETURN_RGB(n, v, m);
case 2: RETURN_RGB(m, v, n)
case 3: RETURN_RGB(m, n, v);
case 4: RETURN_RGB(n, m, v);
case 5: RETURN_RGB(v, m, n);
case 0:
RETURN_RGB(v, n, m);
case 1:
RETURN_RGB(n, v, m);
case 2:
RETURN_RGB(m, v, n)
case 3:
RETURN_RGB(m, n, v);
case 4:
RETURN_RGB(n, m, v);
case 5:
RETURN_RGB(v, m, n);
}
}
#endif // CONVERT_RGB_HSV_H