[Qemu-devel] [PATCH 3/4] fix vnc regression

[Corentin Chary <corentin.chary@gmail.com>]

From: Wen Congyang <wency@cn.fujitsu.com>

This patch fix the following regression:
1. we should use bitmap_set() and bitmap_clear() to replace vnc_set_bits().

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Corentin Chary <corentin.chary@gmail.com>
---
 ui/vnc.c |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/ui/vnc.c b/ui/vnc.c
index 5d4beaa..90b6384 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -1656,17 +1656,21 @@ static void framebuffer_update_request(VncState *vs, int incremental,
                                        int x_position, int y_position,
                                        int w, int h)
 {
+    int i;
+    const size_t width = ds_get_width(vs->ds) / 16;
+
     if (y_position > ds_get_height(vs->ds))
         y_position = ds_get_height(vs->ds);
     if (y_position + h >= ds_get_height(vs->ds))
         h = ds_get_height(vs->ds) - y_position;
 
-    int i;
     vs->need_update = 1;
     if (!incremental) {
         vs->force_update = 1;
         for (i = 0; i < h; i++) {
-            bitmap_set(vs->dirty[y_position + i], x_position / 16, w / 16);
+            bitmap_set(vs->dirty[y_position + i], 0, width);
+            bitmap_clear(vs->dirty[y_position + i], width,
+                         VNC_DIRTY_WORDS * BITS_PER_LONG - width);
         }
     }
 }
-- 
1.7.3.4