https://android-developers.googleblog.com/2019/05/wide-color-photos-are-coming-to-android.html?m=1

this partially answers what application supposed to do?

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At a technical level, this means there will be pictures coming to your application with an ICC profile that is not sRGB but some other wider color gamut: Display P3, Adobe RGB, etc. For consumers, this means their photos will look more realistic. 
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I hope new ffmpeg 6+ plus lcms2 build will do it automagically?

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 To render wide color gamut contents, besides the wide color contents, you will also need to create a wide color gamut surfaces to render to. In OpenGL for example, your application must first check the following extensions:

And then, request the Display P3 as the color space when creating your surfaces, 


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And about this part I am not sure if Mesa3d already implement them .... Cingg definitely does not do egl on x11 so ....


For now wide-gamut display out of cingg as described there is impossible! :( 


Sorry so far ....


PS: Krita was modded quite heavily due to HDR support:

https://www.intel.cn/content/www/cn/zh/developer/articles/success-story/painting-with-light-a-technical-overview-of-implementing-hdr-support-in-krita.html


ps2:

Intel's Linux/wayland Proof of concept HDR rendering demo was posted in late 2017:

https://lists.freedesktop.org/archives/wayland-devel/2017-December/036403.html


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simple-hdr-video
  Uses ffmpeg to decode video into shm buffers, and sets the 
  colorspace/ycbcr encoding etc. appropriately. Ie. this one can
  actually output HDR video

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Of course in 6 years a lot of code was added/deleted, so I am not even sure you can build provided mesa/wayland/weston branches today out of the box ...




вс, 4 июн. 2023 г., 01:52 Andrew Randrianasulu <randrianasulu@gmail.com>:


сб, 3 июн. 2023 г., 23:28 Andrea paz <gamberucci.andrea@gmail.com>:
You are right: the manual talks about emulation for sRGB. More news
can be found here:
https://photographylife.com/how-to-calibrate-dell-wide-gamut-monitors

Ah, THIS article definitely paints different, much darker picture about those monitors (from 2018 perspective). It clearly states you need GPU calibration for those to work nicely. I wonder if they mean something like xcalib work on loading gamma tables or also using actual 3d hardware for color correction?

This is partially reason why I thought about full-screen external Color Management plugin - cingg may not have any real display-side color correction but if you just start external process before entering fullscreen and stop after (assuming single monitor setup) you will have your more accurate colors in fullscreen ( HDR dynamic metadata also apparently can be only send in fullscreen mode, even in Windows!).

So, I propose giant external "hack" when it comes to workflow :) with slight advantage you do not need to wait on me/anyone until any CM arrives (if ever!) to cingg!




However, I am not intent on exploiting my monitor in HDR; in
calibration I even decreased the brightness from the default 120 Cd/m2
to 100 Cd/m2. So I have more realistic colors.