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-rw-r--r--vnc.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/vnc.c b/vnc.c
index dfcf34c..903dd95 100644
--- a/vnc.c
+++ b/vnc.c
@@ -654,6 +654,11 @@ static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
{
+ uint8_t *src_row;
+ uint8_t *dst_row;
+ int y,pitch,depth;
+
+ /* send bitblit op to the vnc client */
vnc_write_u8(vs, 0); /* msg id */
vnc_write_u8(vs, 0);
vnc_write_u16(vs, 1); /* number of rects */
@@ -661,6 +666,23 @@ static void vnc_copy(VncState *vs, int src_x, int src_y, int dst_x, int dst_y, i
vnc_write_u16(vs, src_x);
vnc_write_u16(vs, src_y);
vnc_flush(vs);
+
+ /* do bitblit op on the local surface too */
+ pitch = ds_get_linesize(vs->ds);
+ depth = ds_get_bytes_per_pixel(vs->ds);
+ src_row = vs->server.ds->data + pitch * src_y + depth * src_x;
+ dst_row = vs->server.ds->data + pitch * dst_y + depth * dst_x;
+ if (dst_y > src_y) {
+ /* copy backwards */
+ src_row += pitch * (h-1);
+ dst_row += pitch * (h-1);
+ pitch = -pitch;
+ }
+ for (y = 0; y < h; y++) {
+ memmove(dst_row, src_row, w * depth);
+ src_row += pitch;
+ dst_row += pitch;
+ }
}
static void vnc_dpy_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int dst_y, int w, int h)
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