X-Git-Url: https://git.sesse.net/?p=pitch;a=blobdiff_plain;f=glpitch.cpp;h=e40f8ce83c7c4138224b5fca209601257cc5a709;hp=90c47b8502715ec95bda0f2a7e73a97c819dc26d;hb=2acfa0424af341c8c2aa7446dfb720aa5e74db31;hpb=f5029e9edd2cff89ae9e0ff3d836d871c7c61f95

diff --git a/glpitch.cpp b/glpitch.cpp
index 90c47b8..e40f8ce 100644
--- a/glpitch.cpp
+++ b/glpitch.cpp
@@ -49,17 +49,18 @@ int main(void)
 		glVertex2f(MAX_X, 0.0f);
 		glEnd();
 
-		glBlendFunc(GL_SRC_ALPHA, GL_ONE);
-
-		double peak_pos = find_pos(peak.first);
-
-		glBegin(GL_QUADS);	
-		glColor4f(0.0, 1.0f, 0.0f, 0.2f);
-		glVertex2f(peak_pos - 0.1, 0.0f);
-		glVertex2f(peak_pos - 0.1, 1.0f);
-		glVertex2f(peak_pos + 0.1, 1.0f);
-		glVertex2f(peak_pos + 0.1, 0.0f);
-		glEnd();
+		if (peak.second - log10(FFT_LENGTH) >= 0.0) {
+			double peak_pos = find_pos(peak.first);
+
+			glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+			glBegin(GL_QUADS);	
+			glColor4f(0.0, 1.0f, 0.0f, 0.2f);
+			glVertex2f(peak_pos - 0.1, 0.0f);
+			glVertex2f(peak_pos - 0.1, 1.0f);
+			glVertex2f(peak_pos + 0.1, 1.0f);
+			glVertex2f(peak_pos + 0.1, 0.0f);
+			glEnd();
+		}
 
 		glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 		glBegin(GL_LINES);