Tweak the quality to JPEG settings mapping a bit.
The percieved quality isn't really linear compared to the actual quality
setting, so make it a bit more top heavy. Also disable color subsampling
at some levels and make the highest quality lossless.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3660 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/rfb/TightEncoder.cxx b/common/rfb/TightEncoder.cxx
index e89a560..159ebbf 100644
--- a/common/rfb/TightEncoder.cxx
+++ b/common/rfb/TightEncoder.cxx
@@ -45,16 +45,16 @@
//
const TIGHT_CONF TightEncoder::conf[10] = {
- { 512, 32, 6, 0, 0, 0, 4, 5 },
- { 2048, 64, 6, 1, 1, 1, 8, 10 },
- { 4096, 128, 8, 3, 3, 2, 24, 15 },
- { 8192, 256, 12, 5, 5, 2, 32, 25 },
- { 16384, 512, 12, 6, 7, 3, 32, 37 },
- { 32768, 512, 12, 7, 8, 4, 32, 50 },
- { 65536, 1024, 16, 7, 8, 5, 32, 60 },
- { 65536, 1024, 16, 8, 9, 6, 64, 70 },
- { 65536, 2048, 24, 9, 9, 7, 64, 75 },
- { 65536, 2048, 32, 9, 9, 9, 96, 80 }
+ { 512, 32, 6, 0, 0, 0, 4, 10, 1 }, // 0
+ { 2048, 64, 6, 1, 1, 1, 8, 25, 1 }, // 1
+ { 4096, 128, 8, 3, 3, 2, 24, 25, 0 }, // 2
+ { 8192, 256, 12, 5, 5, 2, 32, 50, 1 }, // 3
+ { 16384, 512, 12, 6, 7, 3, 32, 50, 0 }, // 4
+ { 32768, 512, 12, 7, 8, 4, 32, 75, 1 }, // 5
+ { 65536, 1024, 16, 7, 8, 5, 32, 75, 0 }, // 6
+ { 65536, 1024, 16, 8, 9, 6, 64, 83, 0 }, // 7
+ { 65536, 2048, 24, 9, 9, 7, 64, 92, 0 }, // 8
+ { 65536, 2048, 32, 9, 9, 9, 96,100, 0 } // 9
};
const int TightEncoder::defaultCompressLevel = 6;