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Changes between Version 9 and Version 10 of ImageDepth


Ignore:
Timestamp:
07/13/20 11:24:42 (4 weeks ago)
Author:
Antoine Martin
Comment:

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  • ImageDepth

    v9 v10  
    2323= Limitations =
    2424
     25* the operating system and display must be configured for deep colour support
    2526* transparency is supported in 24-bit mode, which is in effect a 32-bit mode
    26 * 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
    27 * only the "rgb" encoding will preserve high bit depth at present
    28 * the other encodings will downsample 30-bit to 24-bit before compression
    29 * 16-bit mode has no native encoders and so the pixels are upsampled to 24-bit before compression which is wasteful
     27* with versions older than 4.1, 30-bit rendering is only supported in the [/wiki/ClientRendering/OpenGL opengl enabled client], and only the `rgb` encoding will preserve high bit depth
     28* 16-bit mode has no real native encoders and so the pixels are often upsampled to 24-bit before compression which is wasteful
    3029* 8-bit mode is not optimized
    3130* see [/wiki/Colourspace]
     
    3938* #1315: 16-bit server support
    4039* #909: 30-bit server support
    41 * #1309: 30-bit client support
     40* #1309, #2839: 30-bit client support
     41* #2828: 30-bit opengl rendering of video output
    4242* #1584: HDR / Deep Color support in X11
    4343* [https://www.phoronix.com/scan.php?page=news_item&px=Mesa-Lands-10-bit-Color 10-bit Color Visual Support Lands In Mesa]