implement biliear resampling

1 files changed, 6 insertions, 3 deletions

diff --git a/src/GipfelWidget.H b/src/GipfelWidget.H
index 7bcd3c0..054e9ef 100644
--- a/src/GipfelWidget.H
+++ b/src/GipfelWidget.H
@@ -48,10 +48,13 @@ class GipfelWidget : public Fl_Widget {
   int get_rel_track_width(Hill *m);
 
   static int get_pixel_nearest(Fl_Image *img, double x, double y,
-                     char *r, char *g, char *b);
+                     uchar *r, uchar *g, uchar *b);
+
+  static int get_pixel_bilinear(Fl_Image *img, double x, double y,
+                     uchar *r, uchar *g, uchar *b);
 
   static int get_pixel(Fl_Image *img, int x, int y,
-                     char *r, char *g, char *b);
+                     uchar *r, uchar *g, uchar *b);
 
  public:
   GipfelWidget(int X,int Y,int W, int H);
@@ -125,7 +128,7 @@ class GipfelWidget : public Fl_Widget {
   int update();
 
   int get_pixel(double a_view, double a_nick,
-                    char *r, char *g, char *b);
+                    uchar *r, uchar *g, uchar *b);
 
   void draw();
 };