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2010-06-01vnc: tight: don't forget the third colorCorentin Chary1-0/+1
While couting color, if the third color was only present one time it wasn't added to the palette. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-06-01vnc: tight: don't forget last pixel in tight_encode_indexed_rectCorentin Chary1-5/+4
A simple patch would have been to just remove count -= 1, but this one also replace the while (count--) with a for(i = 0; i < count; i++) which I believe is more easy to understand. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-06-01vnc: tight: add palette encodingCorentin Chary1-12/+425
Add palette tight encoding. Palette encoding will try to count the number of colors for a given rectangle, and if this number is low enough (< 256) it will send the palette + the rectangle with indexed colors. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-06-01vnc: add support for tight fill encodingCorentin Chary1-2/+255
Fill encoding detects rectangles using only one color and send only one pixel value. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-06-01vnc: add basic tight supportCorentin Chary1-0/+295
Add support for tight encoding [1]. This patch only add support for "basic" tight compression without any filter. [1] http://tigervnc.org/cgi-bin/rfbproto#tight-encoding. Signed-off-by: Corentin Chary <corentincj@iksaif.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>