From 97b4a5904a989e216b1fbb4d0a55b7340bd7f88a Mon Sep 17 00:00:00 2001
From: pixel <pixel>
Date: Tue, 31 Jan 2006 17:02:39 +0000
Subject: Way too much changes - all over.

---
 lib/mcolor.cc | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

(limited to 'lib/mcolor.cc')

diff --git a/lib/mcolor.cc b/lib/mcolor.cc
index e2a921d..618ae4f 100644
--- a/lib/mcolor.cc
+++ b/lib/mcolor.cc
@@ -17,7 +17,7 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
-/* $Id: mcolor.cc,v 1.8 2004-11-27 21:48:03 pixel Exp $ */
+/* $Id: mcolor.cc,v 1.9 2006-01-31 17:02:39 pixel Exp $ */
 
 #include <SDL.h>
 #include <SDL_opengl.h>
@@ -50,6 +50,27 @@ void mogltk::ColorP::fromSDL(Uint32 p, SDL_PixelFormat * f) {
     SDL_GetRGBA(p, f, &c.R, &c.G, &c.B, &c.A);    
 }
 
+void mogltk::ColorP::fromHSV(double H, double S, double V) {
+    H = H / 60.0;
+    int Hi = ((int) H) % 6;
+    double f = H - Hi;
+    double p = V * (1 - S);
+    double q = V * (1 - f * S);
+    double t = V * (1 - (1 - f) * S);
+    double R, G, B;
+
+    switch (Hi) {
+        case 0: R = V; G = t; B = p; break;
+        case 1: R = q; G = V; B = p; break;
+        case 2: R = p; G = V; B = t; break;
+        case 3: R = p; G = q; B = V; break;
+        case 4: R = t; G = p; B = V; break;
+        case 5: R = V; G = p; B = q; break;
+    }
+
+    c.R = R * 255; c.G = G * 255; c.B = B * 255;
+}
+
 void mogltk::ColorP::Norm() {
     c.R = MIN(MAX(c.R, Min.R), Max.R);
     c.G = MIN(MAX(c.R, Min.G), Max.G);
-- 
cgit v1.2.3