various minor documentation changes

[imager.git] / rotate.c

diff --git a/rotate.c b/rotate.c
index d4891c00e2bc775ff767691b941957948055dbca..6dee34fcfdd68b9364b015ae8fb469db8f5b8313 100644 (file)
--- a/rotate.c
+++ b/rotate.c
@@ -215,6 +215,9 @@ i_img *i_matrix_transform_bg(i_img *src, int xsize, int ysize, const double *mat
             sx = (x * matrix[0] + y * matrix[1] + matrix[2]) / sz;
             sy = (x * matrix[3] + y * matrix[4] + matrix[5]) / sz;
           }
+         else {
+           sx = sy = 0;
+         }
 
           /* anything outside these ranges is either a broken co-ordinate
              or outside the source */
@@ -290,6 +293,9 @@ i_img *i_matrix_transform_bg(i_img *src, int xsize, int ysize, const double *mat
             sx = (x * matrix[0] + y * matrix[1] + matrix[2]) / sz;
             sy = (x * matrix[3] + y * matrix[4] + matrix[5]) / sz;
           }
+          else {
+            sx = sy = 0;
+          }
 
           /* anything outside these ranges is either a broken co-ordinate
              or outside the source */
@@ -390,6 +396,9 @@ i_img *i_matrix_transform_bg(i_img *src, int xsize, int ysize, const double *mat
           sx = (x * matrix[0] + y * matrix[1] + matrix[2]) / sz;
           sy = (x * matrix[3] + y * matrix[4] + matrix[5]) / sz;
         }
+        else {
+          sx = sy = 0;
+        }
         
         /* anything outside these ranges is either a broken co-ordinate
            or outside the source */