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-rw-r--r--src/video_out/alphablend.c14
-rw-r--r--src/video_out/video_out_xv.c3
2 files changed, 10 insertions, 7 deletions
diff --git a/src/video_out/alphablend.c b/src/video_out/alphablend.c
index ac77fbbce..134c8aac3 100644
--- a/src/video_out/alphablend.c
+++ b/src/video_out/alphablend.c
@@ -4,6 +4,8 @@
/*
*
+ * Copyright (C) James Courtier-Dutton James@superbug.demon.co.uk - July 2001
+ *
* Copyright (C) 2000 Thomas Mirlacher
*
* This program is free software; you can redistribute it and/or modify
@@ -249,15 +251,15 @@ void blend_yuv (uint8_t * dst_img, vo_overlay_t * img_overl,
int src_width = img_overl->width;
int src_height = img_overl->height;
uint8_t *src_data = img_overl->data;
-
+ int step=dst_width - src_width;
int x_off = img_overl->x;
int y_off = img_overl->y;
uint8_t *dst_y = dst_img + dst_width * y_off + x_off;
uint8_t *dst_cr = dst_img + dst_width * dst_height +
- (y_off / 2) * (dst_width / 2) + (x_off / 2);
+ (y_off / 2) * (dst_width / 2) + (x_off / 2) + 1;
uint8_t *dst_cb = dst_img + (dst_width * dst_height * 5) / 4 +
- (y_off / 2) * (dst_width / 2) + (x_off / 2);
+ (y_off / 2) * (dst_width / 2) + (x_off / 2) + 1;
int x,
y;
@@ -298,11 +300,11 @@ void blend_yuv (uint8_t * dst_img, vo_overlay_t * img_overl,
src_data++;
}
- dst_y += dst_width - src_width;
+ dst_y += step;
if (y & 1) {
- dst_cr += (dst_width - src_width) / 2;
- dst_cb += (dst_width - src_width) / 2;
+ dst_cr += (step + 1) / 2;
+ dst_cb += (step + 1) / 2;
}
}
}
diff --git a/src/video_out/video_out_xv.c b/src/video_out/video_out_xv.c
index ed49b6324..38bdca7e3 100644
--- a/src/video_out/video_out_xv.c
+++ b/src/video_out/video_out_xv.c
@@ -17,7 +17,7 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
- * $Id: video_out_xv.c,v 1.48 2001/07/04 17:10:24 uid32519 Exp $
+ * $Id: video_out_xv.c,v 1.49 2001/07/04 20:32:29 uid32519 Exp $
*
* video_out_xv.c, X11 video extension interface for xine
*
@@ -28,6 +28,7 @@
*
* xine-specific code by Guenter Bartsch <bartscgr@studbox.uni-stuttgart.de>
*
+ * overlay support by James Courtier-Dutton <James@superbug.demon.co.uk> - July 2001
*/
#ifdef HAVE_CONFIG_H