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Changes between Initial Version and Version 1 of ImageDepth


Ignore:
Timestamp:
02/20/17 09:05:55 (4 years ago)
Author:
Antoine Martin
Comment:

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  • ImageDepth

    v1 v1  
     1{{{#!div class="box"
     2= Image Depth =
     3
     4{{{#!div class="box"
     5== Usage ==
     6
     7Starting with version 2.0, you can simply specify which pixel bit depth you want to use when starting a session:
     8{{{
     9xpra start --pixel-depth=30
     10}}}
     11The "start" command supports bit depths 16,24 and 30.
     12The "[/wiki/Desktop start-desktop]" command supports 8,16,24 and 30.
     13
     14Note: transparency is supported in 24-bit mode, which is in effect a 32-bit mode.
     15}}}
     16
     17
     18{{{#!div class="box"
     19= Limitations =
     20
     21* 30-bit rendering is only supported in the [/wiki/ClientRendering/OpenGL opengl enabled client] (the operating system and display must be configured for deep colour support), with opengl disabled the data will always be downsampled
     22* only the "rgb" encoding will preserve high bit depth at present
     23* the other encodings will downsample 30-bit to 24-bit before compression
     24* 16-bit mode has no native encoders and so the pixels are upsampled to 24-bit before compression which is wasteful
     25* 8-bit mode is not optimized
     26}}}
     27
     28
     29{{{#!div class="box"
     30= Links =
     31
     32* #1445: 8-bit server support
     33* #1315: 16-bit server support
     34* #909: 30-bit server support
     35* #1309: 30-bit client support
     36* #1441: EXR codec with 30-bit
     37* #1310: vpx support for 30-bit
     38* #1308: nvenc support for 30-bit
     39}}}