patch by Dennis Lin: optionally for debugging paint the rect-to-redraw yellow

[inkscape.git] / src / display / nr-filter-gaussian.h

diff --git a/src/display/nr-filter-gaussian.h b/src/display/nr-filter-gaussian.h
index 07ee2392ba591dd77436f139e9d6d9e283b860e3..7b2a96ca583711cf5d77240585a3bcb03ba2c9f6 100644 (file)
--- a/src/display/nr-filter-gaussian.h
+++ b/src/display/nr-filter-gaussian.h
@@ -4,10 +4,12 @@
 /*
  * Gaussian blur renderer
  *
- * Author:
+ * Authors:
  *   Niko Kiirala <niko@kiirala.com>
+ *   bulia byak
+ *   Jasper van de Gronde <th.v.d.gronde@hccnet.nl>
  *
- * Copyright (C) 2006 Niko Kiirala
+ * Copyright (C) 2006 authors
  *
  * Released under GNU GPL, read the file 'COPYING' for more information
  */
@@ -16,6 +18,15 @@
 #include "display/nr-filter-slot.h"
 #include "libnr/nr-pixblock.h"
 #include "libnr/nr-matrix.h"
+#include "libnr/nr-rect-l.h"
+
+enum {
+    BLUR_QUALITY_BEST = 2,
+    BLUR_QUALITY_BETTER = 1,
+    BLUR_QUALITY_NORMAL = 0,
+    BLUR_QUALITY_WORSE = -1,
+    BLUR_QUALITY_WORST = -2
+};
 
 namespace NR {
 
@@ -26,7 +37,8 @@ public:
     virtual ~FilterGaussian();
 
     virtual int render(FilterSlot &slot, Matrix const &trans);
-    virtual int get_enlarge(Matrix const &m);
+    virtual void area_enlarge(NRRectL &area, Matrix const &m);
+    virtual FilterTraits get_input_traits();
 
     /**
      * Set the standard deviation value for gaussian blur. Deviation along
@@ -48,22 +60,6 @@ public:
 private:
     double _deviation_x;
     double _deviation_y;
-
-    int _kernel_size(Matrix const &trans);
-    void _make_kernel(double *kernel, double deviation, double expansion);
-    int _effect_area_scr_x(Matrix const &trans);
-    int _effect_area_scr_y(Matrix const &trans);
-    int _effect_subsample_step(int scr_len_x);
-    int _effect_subsample_step_log2(int scr_len_x);
-
-    inline int _min(int const a, int const b)
-    {
-        return ((a < b) ? a : b);
-    }
-    inline int _max(int const a, int const b)
-    {
-        return ((a > b) ? a : b);
-    }
 };