[0/7] drm/gud: Add some more pixel formats

Message

Noralf Trønnes Aug. 17, 2021, 12:29 p.m. UTC

Hi,

This adds some more pixel formats and gives the user the ability to
choose the xrgb8888 emulation format.

Pixel formats:
R8: For greyscale e-ink displays
RGB332: For e-ink displays and some niche displays
RGB888: Same color depth as XRGB8888 but the smaller buffer gives better
fps

Noralf.


Noralf Trønnes (7):
  drm/fourcc: Add R8 to drm_format_info
  drm/format-helper: Add drm_fb_xrgb8888_to_rgb332()
  drm/format-helper: Add drm_fb_xrgb8888_to_rgb888()
  drm/gud: Add GUD_PIXEL_FORMAT_R8
  drm/gud: Add GUD_PIXEL_FORMAT_RGB332
  drm/gud: Add GUD_PIXEL_FORMAT_RGB888
  drm/gud: Add module parameter to control emulation: xrgb8888

 drivers/gpu/drm/drm_format_helper.c | 85 +++++++++++++++++++++++++++++
 drivers/gpu/drm/drm_fourcc.c        |  1 +
 drivers/gpu/drm/gud/gud_drv.c       | 19 ++++++-
 drivers/gpu/drm/gud/gud_internal.h  | 12 ++++
 drivers/gpu/drm/gud/gud_pipe.c      |  6 ++
 include/drm/drm_format_helper.h     |  4 ++
 include/drm/gud.h                   |  6 +-
 7 files changed, 128 insertions(+), 5 deletions(-)