From abeb492bebdd178862f2d52fe30515220d1c6508 Mon Sep 17 00:00:00 2001
From: Radka Haneckova <chidori@emptytriangle.com>
Date: Sun, 2 Oct 2011 10:12:42 +0200
Subject: [PATCH] 4 new programs: green vs blue (a) and crossfades (s,d,f)

---
 host/ledbar.c | 63 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/host/ledbar.c b/host/ledbar.c
index c8acaf1..f109e45 100644
--- a/host/ledbar.c
+++ b/host/ledbar.c
@@ -236,6 +236,65 @@ void programP(int i, int t, double *r, double *g, double *b)
     }
 }
 
+// green vs blue
+void programA(int i, int t, double *r, double *g, double *b)
+{
+    static float pos = BOXES/2;
+    static float dir = 0.05;
+    *r = 0;
+    *g = max(1 - fabsl((pos-i)/BOXES)*4, 0);
+    *b = max(1 - fabsl(((BOXES-pos)-i)/BOXES)*4, 0);
+    pos += dir;
+    if (pos < 0 || pos > BOXES) dir = -dir;
+}
+
+// crossfade rg
+void programS(int i, int t, double *r, double *g, double *b)
+{
+    if (i%2==0) {
+        *r = (sin(((double)(t-100)/200)*(2*M_PI))+1)/2;
+        *g = (sin(((double)t/200)*(2*M_PI))+1)/2;
+        *b = 0;
+    } else {
+	*r = (sin(((double)t/400)*(2*M_PI))+1)/2;
+        *g = (sin(((double)(t-200)/400)*(2*M_PI))+1)/2;
+        *b = 0;
+    } 
+
+
+}
+
+// crossfade gb
+void programD(int i, int t, double *r, double *g, double *b)
+{
+    if (i%2==0) {
+        *r = 0;
+        *g = (sin(((double)t/200)*(2*M_PI))+1)/2;
+        *b = (sin(((double)(t-100)/200)*(2*M_PI))+1)/2;
+    } else {
+	*r = 0;
+        *g = (sin(((double)(t-200)/400)*(2*M_PI))+1)/2;
+        *b = (sin(((double)t/400)*(2*M_PI))+1)/2;
+    } 
+
+
+}
+
+// crossfade rb
+void programF(int i, int t, double *r, double *g, double *b)
+{
+    if (i%2==0) {
+        *r = (sin(((double)t/200)*(2*M_PI))+1)/2;
+        *g =0;
+        *b = (sin(((double)(t-100)/200)*(2*M_PI))+1)/2;
+    } else {
+	*r = (sin(((double)(t-200)/400)*(2*M_PI))+1)/2;
+        *g = 0;
+        *b = (sin(((double)t/400)*(2*M_PI))+1)/2;
+    } 
+
+
+}
 
 void drawScreen(SDL_Surface* screen, int t, FILE* fp)
 {
@@ -325,6 +384,10 @@ int main(int argc, char* argv[])
                         case SDLK_i: program = programI; break;
                         case SDLK_o: program = programO; break;
                         case SDLK_p: program = programP; break;
+			case SDLK_a: program = programA; break;
+			case SDLK_s: program = programS; break;
+			case SDLK_d: program = programD; break;
+			case SDLK_f: program = programF; break;
                         case SDLK_ESCAPE: quit = 1; break;
                         default: break;
                     }