On 11/07/18 13:55, Daniel Stone wrote: > Hi Emilio, > > On Wed, 11 Jul 2018 at 12:53, Emilio Pozuelo Monfort <poch...@gmail.com> > wrote: >> As for NV12 support: I tried to make gbm support that in >> backends/dri/gbm_dri.c by adding a mapping to gbm_dri_visuals_table >> from GBM_FORMAT_NV12 to __DRI_IMAGE_FOURCC_NV12 or DRM_FORMAT_NV12, >> but that didn't work. I'm not sure what we can do here. Does anybody >> who know the stack better have any pointers? > > There is no native NV12 support, apart form some special-case handling > when using them as textures. For NV12, you would want to create two > separate BOs - one with GBM_FORMAT_R8 (luma/Y), and one with > GBM_FORMAT_RG88 (chroma/UV), and fill those like you would fill the > two planes of a native NV12 surface. They can then be combined and > sent to the compositor as two planes of a single NV12 image.
Aha, thanks! v4 now has working NV12 support. Emilio _______________________________________________ wayland-devel mailing list firstname.lastname@example.org https://lists.freedesktop.org/mailman/listinfo/wayland-devel