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authorLudovic Pouzenc <ludovic@pouzenc.fr>2012-06-17 16:18:53 +0000
committerLudovic Pouzenc <ludovic@pouzenc.fr>2012-06-17 16:18:53 +0000
commitc8e2aaf6999da491d6ea8dab2bc99752fa94b6d4 (patch)
tree49ef9be6a6ce6044aa2780cc52d7292f2836ab61 /src
parent71dad10fdabd700f036893c725f02c9b4b4ac49b (diff)
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Ajout d'une fonction pour linéariser un peu la réponse du projecteur (illuminate.c)
Ajout d'une moyenne sur 8 valeurs pour la luminosité (mais on garde la valeur instantanée pour altérer la couleur) Correction du vumeter qui s'initialisais à 1px par 1px au lancement de l'appli. Avec le lud-msi, le projo à Ju et les sons enregistrés par Laurent, ça pète pas mal :P git-svn-id: file:///var/svn/2012-violon-leds/trunk@24 6be1fa4d-33ac-4c33-becc-79fcb3794bb6
Diffstat (limited to 'src')
-rw-r--r--src/compute.c24
-rw-r--r--src/gtkvumeter.c42
-rw-r--r--src/illuminate.c17
-rw-r--r--src/music2light.c2
4 files changed, 78 insertions, 7 deletions
diff --git a/src/compute.c b/src/compute.c
index 54d6929..ce0575f 100644
--- a/src/compute.c
+++ b/src/compute.c
@@ -100,20 +100,38 @@ void compute_spectrum(float *data, int width, float output[PSHalf]) {
void audio2hsv_1(float audio_level, float *light_h, float *light_s, float *light_v) {
static float hue=0;
+ static float value_decay[8]={0.f};
+ static int decay_idx=0;
- float level_norm=(38.f+audio_level)/30.f;
+ int i;
+ float level_norm, temp;
+ // Testé avec micro externe sur lud-msi
+ //[-38dB;0dB] -> [0.0;1.0]
+ level_norm=(38.f+audio_level)/38.f;
if (level_norm<0.0f) level_norm=0.f;
//if (level_norm<0.1f) level_norm=0.f; //FIXME : ici cache misere pour le tremblement sur plancher bruit
if (level_norm>1.f) level_norm=1.f;
+
+ if (decay_idx>=8) decay_idx=0;
+ value_decay[decay_idx++]=level_norm;
+
hue=(hue+0.0002f);
if (hue>1.f) hue-=1.f;
// printf("%+3.1f %+1.3f\n", audio_level, level_norm);
// Dummy code
- *light_h=hue;
+// *light_h=hue;
+ temp=hue+level_norm/3.f;
+ *light_h=temp-(int)temp; // Fractionnal part
+
*light_s=1.f;
- *light_v=level_norm;
+
+// *light_v=level_norm;
+ temp=0.f;
+ for(i=0;i<8;i++) temp+=value_decay[i];
+ temp/=8.f;
+ *light_v=temp;
}
diff --git a/src/gtkvumeter.c b/src/gtkvumeter.c
index d57cc62..34a2038 100644
--- a/src/gtkvumeter.c
+++ b/src/gtkvumeter.c
@@ -1,3 +1,11 @@
+/*
+ Adapted From GtkVuMeter by Todd Goyen
+ Copyright 2003 Todd Goyen
+ wettoad@knighthoodofbuh.or
+
+ Improved rendering performance (no individual drawline calls)
+
+*/
#include <string.h>
#include "gtkvumeter.h"
@@ -18,10 +26,12 @@ static void free_drawbuf(guchar *pixels, gpointer data);
static void gtk_vu_meter_size_request (GtkWidget *widget, GtkRequisition *requisition);
static void gtk_vu_meter_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
static gint gtk_vu_meter_sound_level_to_draw_level (GtkVuMeter *vumeter);
+static void gtk_vu_meter_realize (GtkWidget *widget);
static void gtk_vu_meter_class_init (GtkVuMeterClass *class) {
GtkWidgetClass *widget_class;
widget_class = GTK_WIDGET_CLASS (class);
+ widget_class->realize = gtk_vu_meter_realize;
widget_class->expose_event = gtk_vu_meter_expose;
widget_class->size_request = gtk_vu_meter_size_request;
widget_class->size_allocate = gtk_vu_meter_size_allocate;
@@ -33,6 +43,38 @@ static void gtk_vu_meter_init (GtkVuMeter *vumeter) {
gtk_vu_meter_setup_colors(vumeter);
}
+static void gtk_vu_meter_realize (GtkWidget *widget)
+{
+ GtkVuMeter *vumeter;
+ GdkWindowAttr attributes;
+ gint attributes_mask;
+
+ g_return_if_fail (widget != NULL);
+ g_return_if_fail (GTK_IS_VU_METER (widget));
+
+ GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED);
+ vumeter = GTK_VU_METER (widget);
+
+ attributes.x = widget->allocation.x;
+ attributes.y = widget->allocation.y;
+ attributes.width = widget->allocation.width;
+ attributes.height = widget->allocation.height;
+ attributes.wclass = GDK_INPUT_OUTPUT;
+ attributes.window_type = GDK_WINDOW_CHILD;
+ attributes.event_mask = gtk_widget_get_events (widget) | GDK_EXPOSURE_MASK;
+ attributes.visual = gtk_widget_get_visual (widget);
+ attributes.colormap = gtk_widget_get_colormap (widget);
+ attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP;
+ widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask);
+
+ widget->style = gtk_style_attach (widget->style, widget->window);
+
+ gdk_window_set_user_data (widget->window, widget);
+ gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL);
+
+ gtk_vu_meter_setup_colors (vumeter);
+}
+
void gtk_vu_meter_set_gradient (GtkVuMeter *vumeter, gint f_gradient_key_count, GdkColor *f_gradient_keys, gint b_gradient_key_count, GdkColor *b_gradient_keys) {
//XXX : memdup is a bad idea ?
GdkColor *fgk = g_memdup(f_gradient_keys, f_gradient_key_count*sizeof(GdkColor));
diff --git a/src/illuminate.c b/src/illuminate.c
index a0f146d..92c8fac 100644
--- a/src/illuminate.c
+++ b/src/illuminate.c
@@ -3,6 +3,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <math.h>
#include "illuminate.h"
// FTDI Vendor ID
@@ -84,12 +85,22 @@ int dmx_init() {
return 0;
}
+inline int projector_correction(int in) {
+ //int out=powf(((in-108.f)/162.f),3.f)*256.f+80.f;
+ int out=in*0.25f+0.75*(powf(((in-100.f)/162.f),3.f)*256.f+48.f);
+ if (out>255) out=255;
+ if (out<0) out=0;
+ return out;
+}
+
int dmx_write_rgb(int r, int g, int b) {
if (! ftdi.usb_dev ) return -1;
- universe[2]=r;
- universe[3]=g;
- universe[4]=b;
+ universe[2]=projector_correction(r);
+ universe[3]=projector_correction(g);
+ universe[4]=projector_correction(b);
+
+// printf("rgb %3i %3i %3i dmx %3i %3i %3i\n", r,g,b, universe[2], universe[3], universe[4]);
return dmx_universe_write(&ftdi, universe, DMX_CHANNELS);
}
diff --git a/src/music2light.c b/src/music2light.c
index b82525b..7d29b56 100644
--- a/src/music2light.c
+++ b/src/music2light.c
@@ -57,7 +57,7 @@ void my_process(float *data, size_t nsamples, size_t nchan) {
//FIXME : rate should came from PulseAudio
sound_level=compute_level(data, nsamples, 44100);
-// printf("sound_level==%f\n", sound_level);
+// printf("sound_level==%+8f nsamples==%8i\n", sound_level, nsamples);
// Update sound vumeter value (refreshed asynchronously)
*audio_vumeter_val=(int)sound_level;