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[Qemu-devel] [6496] Add some tight awareness to vnc.c (Alexander Graf)
From: |
Anthony Liguori |
Subject: |
[Qemu-devel] [6496] Add some tight awareness to vnc.c (Alexander Graf) |
Date: |
Mon, 02 Feb 2009 15:58:43 +0000 |
Revision: 6496
http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=6496
Author: aliguori
Date: 2009-02-02 15:58:43 +0000 (Mon, 02 Feb 2009)
Log Message:
-----------
Add some tight awareness to vnc.c (Alexander Graf)
This patch enables the vnc server to understand fundamental tight extensions.
It changes from a "Hextile or not" scheme when sending framebuffer updates to
a "preferred encoding", namely the last one set.
While this is not perfect, as actually a list of "preferred encodings" should
be kept, it's good enough for now.
Signed-off-by: Alexander Graf <address@hidden>
Signed-off-by: Anthony Liguori <address@hidden>
Modified Paths:
--------------
trunk/vnc.c
Modified: trunk/vnc.c
===================================================================
--- trunk/vnc.c 2009-02-02 15:58:38 UTC (rev 6495)
+++ trunk/vnc.c 2009-02-02 15:58:43 UTC (rev 6496)
@@ -103,6 +103,10 @@
int last_x;
int last_y;
+ uint32_t vnc_encoding;
+ uint8_t tight_quality;
+ uint8_t tight_compression;
+
int major;
int minor;
@@ -450,10 +454,14 @@
static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
{
- if (vnc_has_feature(vs, VNC_FEATURE_HEXTILE))
+ switch(vs->vnc_encoding) {
+ case VNC_ENCODING_HEXTILE:
send_framebuffer_update_hextile(vs, x, y, w, h);
- else
+ break;
+ default:
send_framebuffer_update_raw(vs, x, y, w, h);
+ break;
+ }
}
static void vnc_copy(DisplayState *ds, int src_x, int src_y, int dst_x, int
dst_y, int w, int h)
@@ -1164,6 +1172,9 @@
unsigned int enc = 0;
vs->features = 0;
+ vs->vnc_encoding = 0;
+ vs->tight_compression = 9;
+ vs->tight_quality = 9;
vs->absolute = -1;
dcl->dpy_copy = NULL;
@@ -1171,12 +1182,14 @@
enc = encodings[i];
switch (enc) {
case VNC_ENCODING_RAW:
+ vs->vnc_encoding = enc;
break;
case VNC_ENCODING_COPYRECT:
dcl->dpy_copy = vnc_copy;
break;
case VNC_ENCODING_HEXTILE:
vs->features |= VNC_FEATURE_HEXTILE_MASK;
+ vs->vnc_encoding = enc;
break;
case VNC_ENCODING_DESKTOPRESIZE:
vs->features |= VNC_FEATURE_RESIZE_MASK;
@@ -1193,6 +1206,12 @@
case VNC_ENCODING_WMVi:
vs->features |= VNC_FEATURE_WMVI_MASK;
break;
+ case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9:
+ vs->tight_compression = (enc & 0x0F);
+ break;
+ case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9:
+ vs->tight_quality = (enc & 0x0F);
+ break;
default:
VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc);
break;
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