From 6c480612a954cd85fbce1e3eb459e3274a61c0f7 Mon Sep 17 00:00:00 2001
From: "sgunderson@bigfoot.com" <>
Date: Wed, 21 Jul 2010 19:42:28 +0200
Subject: [PATCH] Add some nice but not so useful color to glpitch (showing
 audio volume).

---
 glpitch.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/glpitch.cpp b/glpitch.cpp
index 2f81619..f494bc7 100644
--- a/glpitch.cpp
+++ b/glpitch.cpp
@@ -100,12 +100,14 @@ int main(void)
 
 		if (peak.second - log10(FFT_LENGTH) >= 0.0) {
 			double peak_pos = find_display_pos(peak.first);
+			double strength = peak.second / 40.0f;
 
+			glEnable(GL_POLYGON_SMOOTH);
 			glBlendFunc(GL_SRC_ALPHA, GL_ONE);
 			glEnable(GL_POLYGON_SMOOTH);
 
 			glBegin(GL_QUADS);	
-			glColor4f(0.0, 1.0f, 0.0f, 0.2f);
+			glColor4f(0.0f, strength, 1.0 - strength, 0.2f);
 			glVertex2f(peak_pos - 0.1, 0.0f);
 			glVertex2f(peak_pos - 0.1, 1.0f);
 			glVertex2f(peak_pos + 0.1, 1.0f);
-- 
2.39.2