gwj / at91sam9263 · Commits

Commit fb437313284d74bc89060b8de5b9899bd9d1d3c3

Authored by aliguori
1 parent 26f8b9cc

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 <agraf@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6496 c046a42c-6fe2-441c-8c8c-71466251a162
Inline Side-by-side
Showing 1 changed file with 21 additions and 2 deletions
... ... @@ -103,6 +103,10 @@ struct VncState
103 103 int last_x;
104 104 int last_y;
105 105  
  106 + uint32_t vnc_encoding;
  107 + uint8_t tight_quality;
  108 + uint8_t tight_compression;
  109 +
106 110 int major;
107 111 int minor;
108 112  
... ... @@ -450,10 +454,14 @@ static void send_framebuffer_update_hextile(VncState *vs, int x, int y, int w, i
450 454  
451 455 static void send_framebuffer_update(VncState *vs, int x, int y, int w, int h)
452 456 {
453   - if (vnc_has_feature(vs, VNC_FEATURE_HEXTILE))
  457 + switch(vs->vnc_encoding) {
  458 + case VNC_ENCODING_HEXTILE:
454 459 send_framebuffer_update_hextile(vs, x, y, w, h);
455   - else
  460 + break;
  461 + default:
456 462 send_framebuffer_update_raw(vs, x, y, w, h);
  463 + break;
  464 + }
457 465 }
458 466  
459 467 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 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
1164 1172 unsigned int enc = 0;
1165 1173  
1166 1174 vs->features = 0;
  1175 + vs->vnc_encoding = 0;
  1176 + vs->tight_compression = 9;
  1177 + vs->tight_quality = 9;
1167 1178 vs->absolute = -1;
1168 1179 dcl->dpy_copy = NULL;
1169 1180  
... ... @@ -1171,12 +1182,14 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
1171 1182 enc = encodings[i];
1172 1183 switch (enc) {
1173 1184 case VNC_ENCODING_RAW:
  1185 + vs->vnc_encoding = enc;
1174 1186 break;
1175 1187 case VNC_ENCODING_COPYRECT:
1176 1188 dcl->dpy_copy = vnc_copy;
1177 1189 break;
1178 1190 case VNC_ENCODING_HEXTILE:
1179 1191 vs->features |= VNC_FEATURE_HEXTILE_MASK;
  1192 + vs->vnc_encoding = enc;
1180 1193 break;
1181 1194 case VNC_ENCODING_DESKTOPRESIZE:
1182 1195 vs->features |= VNC_FEATURE_RESIZE_MASK;
... ... @@ -1193,6 +1206,12 @@ static void set_encodings(VncState *vs, int32_t *encodings, size_t n_encodings)
1193 1206 case VNC_ENCODING_WMVi:
1194 1207 vs->features |= VNC_FEATURE_WMVI_MASK;
1195 1208 break;
  1209 + case VNC_ENCODING_COMPRESSLEVEL0 ... VNC_ENCODING_COMPRESSLEVEL0 + 9:
  1210 + vs->tight_compression = (enc & 0x0F);
  1211 + break;
  1212 + case VNC_ENCODING_QUALITYLEVEL0 ... VNC_ENCODING_QUALITYLEVEL0 + 9:
  1213 + vs->tight_quality = (enc & 0x0F);
  1214 + break;
1196 1215 default:
1197 1216 VNC_DEBUG("Unknown encoding: %d (0x%.8x): %d\n", i, enc, enc);
1198 1217 break;
... ...