[gegl/soc-2011-ops] Added cubism op, no improvement

[Robert Sasu <sasurobert src gnome org>]

commit 9b97ac4f17048629b2e9609ce0c8640e47cecf62
Author: Robert Sasu <sasu robert gmail com>
Date:   Wed Jul 6 22:46:20 2011 +0300

    Added cubism op, no improvement

 operations/workshop/cubism.c |  113 ++++++++++++++++++++++++++++++++++--------
 1 files changed, 92 insertions(+), 21 deletions(-)
---
diff --git a/operations/workshop/cubism.c b/operations/workshop/cubism.c
index 9620f7e..f6ba2b3 100644
--- a/operations/workshop/cubism.c
+++ b/operations/workshop/cubism.c
@@ -52,7 +52,7 @@ gegl_chant_boolean (background, _("Background"), FALSE,
 #define MAX_POINTS        4
 #define RANDOMNESS        5
 
-
+FILE *f;
 
 typedef struct
 {
@@ -255,18 +255,16 @@ set_background_color (gfloat              *dst_buf,
                       GeglBuffer          *input,
                       const GeglRectangle *result)
 {
-  gint           i, j, k, offset = 0;
+  gint           i = 0, j, k, offset = 0, area = 0;
   GeglRectangle  tmp;
   gfloat        *tmp_buf; 
   
   tmp.x      = extended->x;
   tmp.y      = extended->y;
   tmp.width  = extended->width;
-  tmp.height = result->y - extended->y;
-
+  tmp.height = 2 * (result->y - extended->y);
 
 /*get previously calculated pixels*/
-
 /*top*/
   if (tmp.height)
      {
@@ -275,14 +273,27 @@ set_background_color (gfloat              *dst_buf,
                       GEGL_AUTO_ROWSTRIDE);
 
      for (i=0; i<tmp.width * tmp.height * 4; i++)
+         {
          dst_buf[i] = tmp_buf[i];
+         }
      g_free (tmp_buf);
-     }
-
-  tmp.y      = result->y;
-  tmp.width  = result->x - extended->x;   
-  tmp.height = extended->height - (result->y - extended->y);
 
+     area += 1;
+     }
+  
+  if (area!=0)
+     {
+     tmp.y      = result->y + (result->y - extended->y);
+     tmp.width  = 2 * (result->x - extended->x);
+     tmp.height = extended->height - 2 * (result->y - extended->y);
+     }
+  else 
+     {
+     tmp.y      = result->y;
+     tmp.width  = 2 * (result->x - extended->x);   
+     tmp.height = extended->height - (result->y - extended->y);
+     }
+  
 /*left*/
   if (tmp.width)
      {
@@ -290,24 +301,83 @@ set_background_color (gfloat              *dst_buf,
      gegl_buffer_get (input, 1.0, &tmp, babl_format ("RGBA float"), tmp_buf,
                       GEGL_AUTO_ROWSTRIDE);
 
-     offset = (extended->width - 1) * (result->y - extended->y) * 4;
- 
+     if (i!=0)
+         {
+         offset = (extended->width) * (result->y - extended->y - 1) * 4;
+         }
+     else
+         {
+         offset = (extended->width) * (2 * (result->y - extended->y) - 1) * 4;
+         }
+
      for (i=0; i<tmp.height; i++)
         {
          offset += (extended->width * 4);
          for (j=0; j< tmp.width * 4; j++)
-             dst_buf[offset++] = tmp_buf[i];
+             {
+             dst_buf[offset++] = tmp_buf[i * tmp.width * 4 + j];
+             }
 	}
      g_free (tmp_buf);
+ 
+     area += 2;
+     }
+
+  switch (area) /*no top, neither bottom*/
+     {
+     case 0:
+        k = 0;
+        for (i=0; i < extended->height * extended->width * 4; i++)
+            {
+            dst_buf[i] = color[k++];
+            if (k % 4 == 0) k = 0;
+            }
+        break;
+    
+     case 1: /*just top*/
+
+     for (i=2 * result->y - extended->y; i < extended->height; i++)
+        {
+        offset = ((i - extended->y) * extended->width + result->x - extended->x) * 4;
+        for (j=result->x; j<extended->width; j++)
+            for (k=0; k<4; k++)
+                dst_buf[offset++] = color[k];
+        }
+     break;
+
+     case 2: /*just left*/
+
+     for (i=result->y; i < extended->height; i++)
+       {
+       offset = ((i - extended->y) * extended->width + 2 * (result->x - extended->x)) * 4;
+       for (j=2 * result->x - extended->x; j<extended->width; j++)
+           for (k=0; k<4; k++)
+               dst_buf[offset++] = color[k];
+       }
+     break;
+
+     case 3: /*top and left*/
+
+     for (i=2 * result->y - extended->y; i < extended->height; i++)
+        {
+        offset = ((i - extended->y) * extended->width + 2 * (result->x - extended->x)) * 4;
+        for (j=2 * result->x - extended->x; j<extended->width; j++)
+            for (k=0; k<4; k++)
+                dst_buf[offset++] = color[k];
+        }
+     break; 
      }
 
-  for (i=result->y; i < extended->height; i++)
-      {
-      offset = ((i - extended->y) * extended->width + result->x - extended->x) * 4;
-      for (j=result->x; j<extended->width; j++)
-          for (k=0; k<4; k++)
-              dst_buf[offset++] = color[k];
-      }
+
+
+   /*
+   for (i=0; i<extended->height * extended->width * 4;i++)
+       {
+           if (dst_buf[i]!=0) fprintf(f,"\t %d %lf ",i, dst_buf[i]);
+
+           if (dst_buf[i]!=0 && (i+1) % 4 == 0) fprintf(f,"\n");
+       }*/
+//  fprintf(f,"\n\n");
 }
 
 static void
@@ -564,7 +634,7 @@ process (GeglOperation       *operation,
   cols = (result->width + o->tile_size - 1) / o->tile_size;
   rows = (result->height + o->tile_size - 1) / o->tile_size;
 
-  set_background_color (dst_buf, &extended, bg_col, input, result);
+ // set_background_color (dst_buf, &extended, bg_col, input, result);
 
   num_tiles = (rows + 1) * (cols + 1);
 
@@ -676,6 +746,7 @@ gegl_chant_class_init (GeglChantClass *klass)
   GeglOperationClass       *operation_class;
   GeglOperationFilterClass *filter_class;
 
+  f = fopen ("tryyy","w+t");
 
   operation_class = GEGL_OPERATION_CLASS (klass);
   filter_class    = GEGL_OPERATION_FILTER_CLASS (klass);