[gthumb] scale: no need to use the weights vector

[Paolo Bacchilega <paobac src gnome org>]

commit 9f3c2d084726e60be274916dc6a591384c866b2f
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Sat Jun 29 14:34:46 2013 +0200

    scale: no need to use the weights vector

 gthumb/cairo-scale.c |   21 +++++++--------------
 1 files changed, 7 insertions(+), 14 deletions(-)
---
diff --git a/gthumb/cairo-scale.c b/gthumb/cairo-scale.c
index 6782376..78f08b9 100644
--- a/gthumb/cairo-scale.c
+++ b/gthumb/cairo-scale.c
@@ -326,7 +326,7 @@ horizontal_scale_transpose (cairo_surface_t *image,
                int        x;
                int        i;
 #ifdef HAVE_VECTOR_OPERATIONS
-               r4vector   v_pixel, v_weight, v_rgba;
+               r4vector   v_pixel, v_rgba;
 #endif /* HAVE_VECTOR_OPERATIONS */
 
                if (resize_filter->task != NULL) {
@@ -374,24 +374,17 @@ horizontal_scale_transpose (cairo_surface_t *image,
 
                        v_rgba.v = (v4r) { 0.0, 0.0, 0.0, 0.0 };
                        for (i = 0; i < n; i++) {
-                               v_pixel.v = (v4r) { p_src_pixel[CAIRO_RED],
-                                                   p_src_pixel[CAIRO_GREEN],
-                                                   p_src_pixel[CAIRO_BLUE],
-                                                   p_src_pixel[CAIRO_ALPHA] };
-                               v_weight.v = (v4r) { weights[i],
-                                                    weights[i],
-                                                    weights[i],
-                                                    weights[i]};
-                               v_rgba.v = v_rgba.v + (v_pixel.v * v_weight.v);
+                               v_pixel.v = (v4r) { p_src_pixel[0], p_src_pixel[1], p_src_pixel[2], 
p_src_pixel[3] };
+                               v_rgba.v = v_rgba.v + (v_pixel.v * weights[i]);
 
                                p_src_pixel += 4;
                        }
                        v_rgba.v = v_rgba.v + 0.5;
 
-                       p_dest_pixel[CAIRO_RED] = CLAMP_PIXEL (v_rgba.r[0]);
-                       p_dest_pixel[CAIRO_GREEN] = CLAMP_PIXEL (v_rgba.r[1]);
-                       p_dest_pixel[CAIRO_BLUE] = CLAMP_PIXEL (v_rgba.r[2]);
-                       p_dest_pixel[CAIRO_ALPHA] = CLAMP_PIXEL (v_rgba.r[3]);
+                       p_dest_pixel[0] = CLAMP_PIXEL (v_rgba.r[0]);
+                       p_dest_pixel[1] = CLAMP_PIXEL (v_rgba.r[1]);
+                       p_dest_pixel[2] = CLAMP_PIXEL (v_rgba.r[2]);
+                       p_dest_pixel[3] = CLAMP_PIXEL (v_rgba.r[3]);
 
 #else /* ! HAVE_VECTOR_OPERATIONS */