X-Git-Url: https://git.sesse.net/index.cgi/?a=blobdiff_plain;f=glpitch.cpp;h=a168d79c5c4d3083bd4bf7766d2c9e46f6455a8c;hb=HEAD;hp=e47e977f2b8743960b776e28c13f6a77947b574c;hpb=3fff09f828423670c99dac1681ef32c2f764dfea;p=pitch

diff --git a/glpitch.cpp b/glpitch.cpp
index e47e977..a168d79 100644
--- a/glpitch.cpp
+++ b/glpitch.cpp
@@ -52,7 +52,7 @@ double find_display_pos(double freq)
 int main(void)
 {
 	PitchDetector pd(SAMPLE_RATE, FFT_LENGTH, PAD_FACTOR, OVERLAP);
-	int fd = get_dsp_fd(SAMPLE_RATE, FFT_LENGTH, OVERLAP);
+	snd_pcm_t *pcm = get_dsp_handle(SAMPLE_RATE);
 
 	SDL_Init(SDL_INIT_VIDEO);
 	SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
@@ -60,6 +60,7 @@ int main(void)
 
 	glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
 	glClear(GL_COLOR_BUFFER_BIT);
+	glDisable(GL_DEPTH_TEST);
 
 	for ( ;; ) {
 		SDL_Event event;
@@ -76,7 +77,7 @@ int main(void)
 		}
 
 		short buf[FFT_LENGTH / PAD_FACTOR / OVERLAP];
-		read_chunk(fd, buf, FFT_LENGTH / PAD_FACTOR / OVERLAP);
+		read_chunk(pcm, buf, FFT_LENGTH / PAD_FACTOR / OVERLAP);
 		std::pair<double, double> peak = pd.detect_pitch(buf);
 
 		glMatrixMode(GL_PROJECTION);
@@ -99,12 +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);