Hi Thomas, On Mon, Aug 08, 2022 at 02:53:52PM +0200, Thomas Zimmermann wrote: > Change format-conversion helpers to use struct iosys_map for source > and destination buffers. Update all users. Also prepare interface for > multi-plane color formats. > > The format-conversion helpers mostly used to convert to I/O memory > or system memory. To actual memory type depended on the usecase. We > now have drivers upcomming that do the conversion entirely in system > memory. It's a good opportunity to stream-line the interface of the > conversion helpers to use struct iosys_map. Source and destination > buffers can now be either in system or in I/O memory. Note that the > implementation still only supports source buffers in system memory. > > This patchset also changes the interface to support multi-plane > color formats, where the values for each component are stored in > distinct memory locations. Converting from RGBRGBRGB to RRRGGGBBB > would require a single source buffer with RGB values and 3 destination > buffers for the R, G and B values. Conversion-helper interfaces now > support this. > > v2: > * add IOSYS_MAP_INIT_VADDR_IOMEM (Sam) > * use drm_format_info_bpp() (Sam) > * update documentation (Sam) > * rename 'vmap' to 'src' (Sam) > * many smaller cleanups and fixes (Sam, Jose) Thanks for the quick respin - I reviewed the remaining patches and looks good. Nice cleanup of the API and it makes is easier to add more conversions. Sam
