cvg: Add a pass-through filter

And rename None to Hide.

2 files changed, 21 insertions, 7 deletions

diff --git a/cvg.c b/cvg.c
index 78f3c96..b6fc76e 100644
--- a/cvg.c
+++ b/cvg.c
@@ -238,18 +238,29 @@ file_set(GtkFileChooserButton *widget, gpointer userdata)
 }
 
 static IplImage *
-gauss_filter(struct cvg *cvg, IplImage *image)
+pass_through_filter(struct cvg *cvg, IplImage *image)
 {
 	IplImage *output;
 
 	output = cvCreateImage(cvGetSize(image), IPL_DEPTH_8U, 3);
+	cvCopy(image, output, NULL);
+
+	return output;
+}
+
+static IplImage *
+gauss_filter(struct cvg *cvg, IplImage *image)
+{
+	IplImage *output;
+	
+	output = cvCreateImage(cvGetSize(image), IPL_DEPTH_8U, 3);
 	cvSmooth(image, output, CV_GAUSSIAN, 9, 9, 0, 0);
 
 	return output;
 }
 
 static IplImage *
-none_filter(struct cvg *cvg, IplImage *image)
+hide_filter(struct cvg *cvg, IplImage *image)
 {
 	return NULL;
 }
@@ -280,8 +291,10 @@ method_set(GtkComboBox *widget, gpointer userdata)
 		return;
 	if (strcmp(text, "Gauss") == 0)
 		cvg->filter = gauss_filter;
-	else if (strcmp(text, "None") == 0)
-		cvg->filter = none_filter;
+	else if (strcmp(text, "Pass-Through") == 0)
+		cvg->filter = pass_through_filter;
+	else if (strcmp(text, "Hide") == 0)
+		cvg->filter = hide_filter;
 	update_right_drawing_area(cvg);
 }
 
@@ -291,7 +304,7 @@ main(int argc, char *argv[])
 	struct cvg cvg;
 	GtkBuilder *builder;
 	GObject *file_chooser;
-	GObject *comboxbox;
+	GObject *combobox;
 	gchar *path, *file;
 	int index = 0;
 
@@ -340,7 +353,7 @@ main(int argc, char *argv[])
 	gtk_combo_box_set_active(GTK_COMBO_BOX(combobox), 0);
 
 	cvg.idle_source = g_idle_add(capture, &cvg);
-	cvg.filter = none_filter;
+	cvg.filter = hide_filter;
 	gtk_widget_show_all(GTK_WIDGET(gtk_builder_get_object(builder, "win")));
 	g_object_unref(builder);
 	gtk_main();
diff --git a/cvg.ui b/cvg.ui
index 15c4e8b..4504994 100644
--- a/cvg.ui
+++ b/cvg.ui
@@ -81,8 +81,9 @@
             <property name="can_focus">False</property>
             <property name="entry_text_column">0</property>
             <items>
-              <item>None</item>
+              <item>Hide</item>
               <item>Gauss</item>
+              <item>Pass-Through</item>
             </items>
             <signal name="changed" handler="method_set" swapped="no"/>
           </object>