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Some more work on HLS colors. Broken...

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git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@347 416bcca6-2ee7-4201-b75f-2eb2f807beb1
This commit is contained in:
Adrien Destugues
2008-11-15 22:43:12 +00:00
parent 48979bf251
commit a60b2bfd01
3 changed files with 66 additions and 4 deletions
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36
op_c.c
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@@ -24,6 +24,7 @@
#include <stdio.h>
#include <fcntl.h>
#include <sys/stat.h>
#include <math.h>
#include "op_c.h"
#include "erreurs.h"
@@ -103,10 +104,43 @@ void rgb2hl(int r,int g,int b,byte * hr,byte * lr,byte* sr)
*sr = (s*255.0);
}
void HLStoRGB(byte H,byte L,byte S, byte* R, byte* G, byte* B)
{
float OffsetSaturation;
float rf,gf,bf;
S = 255 - S;
if(H < 85)
rf = fminf(1, (85 - H) / 42.5);
else if(H > 170)
rf = fminf(1, (H - 170) / 42.5);
if (H < 170)
gf = fminf(1, (85 - abs(H - 85)) / 42.5);
if (H > 85)
bf = fminf(1, (85 - abs(H - 170)) / 42.5);
if (S < 255)
{
rf = rf * (S / 255.0);
gf = gf * (S / 255.0);
bf = bf * (S / 255.0);
OffsetSaturation = /*128 **/ (255 - S) / 255.0;
rf += OffsetSaturation;
gf += OffsetSaturation;
bf += OffsetSaturation;
}
*R = rf * ((255 - abs(L - 255)) / 255.0);
*G = gf * ((255 - abs(L - 255)) / 255.0);
*B = bf * ((255 - abs(L - 255)) / 255.0);
}
/////////////////////////////////////////////////////////////////////////////
///////////////////////////// M‚thodes de gestion des tables de conversion //
///////////////////////////// Méthodes de gestion des tables de conversion //
/////////////////////////////////////////////////////////////////////////////
Table_conversion * TC_New(int nbb_r,int nbb_v,int nbb_b)