[FFmpeg-devel] [PATCH v06 2/5] fbtile helperRoutines cpu based framebuffer detiling

[Lynne]

Jul 4, 2020, 14:17 by hanishkvc at gmail.com:

> Add helper routines which can be used to detile tiled framebuffer
> layouts into a linear layout, using the cpu.
>
> Currently it supports Legacy Intel Tile-X, Legacy Intel Tile-Y and
> Newer Intel Tile-Yf tiled layouts.
>
> Currently supported pixel format is 32bit RGB.
>
> It also contains detile_generic logic, which can be easily configured
> to support different kinds of tiling layouts, at the expense of some
> processing speed, compared to developing a targeted detiling logic.
>

Sorry, but we really cannot afford to have this as part of the public API,
which it needs to be if it can be used by lavfi. So its unacceptable in its
current form, especially if all parts dependent on it are compile-time options.
That's why I suggested merging it all into hwcontext_drm.c