(resending with dri-devel in cc) Support conversion from RGB565 and RGB888 to XRGB8888. This enables simpledrm to work with framebuffers of such formats. UEFI and/or Grub will usually set 32-bit output in XRGB8888 format. The issue can be reproduced by enabling simpledrm and requesting a console framebuffer of different format on the kernel command line; for example nomodeset video=1024x768-16 or nomodeset video=1024x768-24 Conversion helpers will do nothing in this case. Make this work by implementing the rsp conversion helpers. Also add a warning about unsupported format conversions. The patchset should also enable odd userspace configurations, such as running Xorg with 16- or 24-bit color depth. Thomas Zimmermann (3): drm/format-helper: Print warning on missing format conversion drm/format-helper: Add RGB888-to-XRGB8888 conversion drm/format-helper: Add RGB565-to-XRGB8888 conversion drivers/gpu/drm/drm_format_helper.c | 95 +++++++++++++++++++++++++++++ 1 file changed, 95 insertions(+) base-commit: d97978df553d768e457cb68c637b2b0a6188b87c -- 2.35.1
