[Mesa-dev] [RFC 0/6] Enable fp16 visuals and fbconfigs

[Kevin Strasser]

This series enables fp16 fbconfigs and visuals by leveraging existing off-screen
rendering support.

These formats can be used in conjunction with EXT_surface_SMPTE2086_metadata
(not yet implemented by any drivers) to support EXT_gl_colorspace_scrgb /
EXT_gl_colorspace_scrgb_linear, used in places like Android wide color gamut.

While I have run this series against Piglit, I still need to sort out test
coverage for these formats. If anyone has pointers to existing tests that would
be really helpful.

As an easy smoke test I have a modified version of kmscube:
  https://github.com/strassek/kmscube/commits/fp16

Kevin Strasser (6):
  dri: Support 64 bit rgba masks
  dri: Set bit for float configs
  drm-uapi: Add fp16 formats to drm_fourcc.h
  dri: Enable fp16 configs and visuals
  gallium/winsys/kms: Respect format bpp
  gbm: Add visuals and buffer handling for fp16 formats

 include/GL/internal/dri_interface.h                | 11 ++-
 include/drm-uapi/drm_fourcc.h                      |  8 +++
 src/egl/drivers/dri2/egl_dri2.c                    | 32 +++++++--
 src/egl/drivers/dri2/egl_dri2.h                    |  6 +-
 src/egl/drivers/dri2/platform_android.c            |  2 +-
 src/egl/drivers/dri2/platform_drm.c                | 79 ++++++++++++++++++----
 src/egl/drivers/dri2/platform_surfaceless.c        |  2 +-
 src/egl/drivers/dri2/platform_wayland.c            |  2 +-
 src/egl/drivers/dri2/platform_x11.c                |  6 +-
 .../auxiliary/pipe-loader/driinfo_gallium.h        |  1 +
 src/gallium/state_trackers/dri/dri2.c              | 22 ++++++
 src/gallium/state_trackers/dri/dri_drawable.c      |  3 +
 src/gallium/state_trackers/dri/dri_screen.c        | 26 ++++++-
 src/gallium/winsys/sw/kms-dri/kms_dri_sw_winsys.c  |  2 +-
 src/gbm/backends/dri/gbm_dri.c                     | 38 ++++++++++-
 src/gbm/backends/dri/gbm_driint.h                  |  9 +--
 src/gbm/main/gbm.c                                 |  3 +
 src/gbm/main/gbm.h                                 |  9 +++
 src/glx/glxconfig.h                                |  2 +-
 src/loader/loader_dri3_helper.c                    |  5 ++
 src/mesa/drivers/dri/common/dri_util.c             |  8 +++
 src/mesa/drivers/dri/common/utils.c                | 31 ++++++++-
 src/mesa/drivers/dri/i965/intel_screen.c           | 39 ++++++++++-
 src/mesa/main/mtypes.h                             |  2 +-
 src/mesa/state_tracker/st_cb_fbo.c                 |  3 +
 src/util/xmlpool/t_options.h                       |  5 ++
 26 files changed, 311 insertions(+), 45 deletions(-)

-- 
2.7.4