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-rw-r--r--ui/vnc.c33
1 files changed, 31 insertions, 2 deletions
diff --git a/ui/vnc.c b/ui/vnc.c
index d2ebf1fb71..ddd01fdce6 100644
--- a/ui/vnc.c
+++ b/ui/vnc.c
@@ -2094,6 +2094,24 @@ static void set_pixel_conversion(VncState *vs)
}
}
+static void send_color_map(VncState *vs)
+{
+ int i;
+
+ vnc_write_u8(vs, VNC_MSG_SERVER_SET_COLOUR_MAP_ENTRIES);
+ vnc_write_u8(vs, 0); /* padding */
+ vnc_write_u16(vs, 0); /* first color */
+ vnc_write_u16(vs, 256); /* # of colors */
+
+ for (i = 0; i < 256; i++) {
+ PixelFormat *pf = &vs->client_pf;
+
+ vnc_write_u16(vs, (((i >> pf->rshift) & pf->rmax) << (16 - pf->rbits)));
+ vnc_write_u16(vs, (((i >> pf->gshift) & pf->gmax) << (16 - pf->gbits)));
+ vnc_write_u16(vs, (((i >> pf->bshift) & pf->bmax) << (16 - pf->bbits)));
+ }
+}
+
static void set_pixel_format(VncState *vs,
int bits_per_pixel, int depth,
int big_endian_flag, int true_color_flag,
@@ -2101,8 +2119,15 @@ static void set_pixel_format(VncState *vs,
int red_shift, int green_shift, int blue_shift)
{
if (!true_color_flag) {
- vnc_client_error(vs);
- return;
+ /* Expose a reasonable default 256 color map */
+ bits_per_pixel = 8;
+ depth = 8;
+ red_max = 7;
+ green_max = 7;
+ blue_max = 3;
+ red_shift = 0;
+ green_shift = 3;
+ blue_shift = 6;
}
switch (bits_per_pixel) {
@@ -2132,6 +2157,10 @@ static void set_pixel_format(VncState *vs,
vs->client_pf.depth = bits_per_pixel == 32 ? 24 : bits_per_pixel;
vs->client_be = big_endian_flag;
+ if (!true_color_flag) {
+ send_color_map(vs);
+ }
+
set_pixel_conversion(vs);
graphic_hw_invalidate(vs->vd->dcl.con);