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? === At a technical level, this means there will be pictures coming to your application with an ICC profile <https://en.wikipedia.org/wiki/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. === I hope new ffmpeg 6+ plus lcms2 build will do it automagically? ==== 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: - EXT_gl_colorspace_display_p3_passthrough <https://www.khronos.org/registry/EGL/extensions/EXT/EGL_EXT_gl_colorspace_display_p3_passthrough.txt> - EXT_gl_colorspace_display_p3 <https://www.khronos.org/registry/EGL/extensions/EXT/EGL_EXT_gl_colorspace_display_p3.txt> And then, request the Display P3 as the color space when creating your surfaces, ==== 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 === 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 ===== 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 <randrianas...@gmail.com>: > > > сб, 3 июн. 2023 г., 23:28 Andrea paz <gamberucci.and...@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. >> >
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