[gthumb] renamed _cairo_multiply to _cairo_multiply_alpha

[Paolo Bacchilega <paobac src gnome org>]

commit 768c88c49e84aa7943fc2bf239f8d0d9c5b4d6fd
Author: Paolo Bacchilega <paobac src gnome org>
Date:   Thu Apr 28 14:54:44 2011 +0200

    renamed _cairo_multiply to _cairo_multiply_alpha

 gthumb/cairo-utils.c |   10 +++++-----
 gthumb/cairo-utils.h |    2 +-
 2 files changed, 6 insertions(+), 6 deletions(-)
---
diff --git a/gthumb/cairo-utils.c b/gthumb/cairo-utils.c
index 6df2744..f5ed20f 100644
--- a/gthumb/cairo-utils.c
+++ b/gthumb/cairo-utils.c
@@ -53,8 +53,8 @@ surface_pixels_free (void *data)
 
 
 inline int
-_cairo_multiply (int color,
-		 int alpha)
+_cairo_multiply_alpha (int color,
+		       int alpha)
 {
 	int temp = (alpha * color) + 0x80;
 	return ((temp + (temp >> 8)) >> 8);
@@ -268,9 +268,9 @@ _cairo_image_surface_create_from_pixbuf (GdkPixbuf *pixbuf)
 					pixel = 0;
 				}
 				else {
-					r = _cairo_multiply (p_iter[0], a);
-					g = _cairo_multiply (p_iter[1], a);
-					b = _cairo_multiply (p_iter[2], a);
+					r = _cairo_multiply_alpha (p_iter[0], a);
+					g = _cairo_multiply_alpha (p_iter[1], a);
+					b = _cairo_multiply_alpha (p_iter[2], a);
 					pixel = CAIRO_RGBA_TO_UINT32 (r, g, b, a);
 				}
 				memcpy (s_iter, &pixel, sizeof (guint32));
diff --git a/gthumb/cairo-utils.h b/gthumb/cairo-utils.h
index 9270e8c..46ffa9d 100644
--- a/gthumb/cairo-utils.h
+++ b/gthumb/cairo-utils.h
@@ -129,7 +129,7 @@ extern const unsigned char cairo_channel[4];
 
 /* math */
 
-int                _cairo_multiply                          (int                color,
+int                _cairo_multiply_alpha                    (int                color,
 							     int                alpha);
 
 /* colors */