From: "Leo (Sunpeng) Li" <sunpeng.li@xxxxxxx>
This ended up being different enough from v2 to warrant a new patchset. Per
Michel's suggestions, there have been various optimizations and cleanups.
Here's what's changed:
* Cache DRM color management property IDs at pre-init,
* instead of querying DRM each time we need to modify color properties.
* Remove drmmode_update_cm_props().
* Update color properties in drmmode_output_get_property() instead.
* This also makes old calls to update_cm_props redundant.
* Get rid of fake CRTCs.
* Previously, we were allocating a fake CRTC to configure color props on
outputs that don't have a CRTC.
* Instead, rr_configure_and_change_cm_property() can be easily modified to
accept NULL CRTCs.
* Drop patches to persist color properties across DPMS events.
* Kernel driver should be patched instead:
https://lists.freedesktop.org/archives/amd-gfx/2018-May/022744.html
* Color props including legacy gamma now persist across crtc dpms.
* Non-legacy props now persist across output dpms and hotplug, as long
as the same CRTC remains attached to that output.
And some smaller improvements:
* Change CTM to be 32-bit format instead of 16-bit.
* This requires clients to ensure that each 32-bit element is padded to be
long-sized, since libXrandr parses 32-bit format as long-typed.
* Optimized color management init during CRTC init.
* Query DRM once for the list of properties, instead of twice.
The test/demo application is also updated to reflect that 32-bit CTM change:
https://cgit.freedesktop.org/~hwentland/color-demo-app
Leo (Sunpeng) Li (7):
Cache color property IDs during pre-init
Initialize color properties on CRTC during CRTC init
Configure color properties when creating output resources
Update color properties on output_get_property
Enable setting of color properties via RandR
Compose non-legacy with legacy regamma LUT
Also compose LUT when setting legacy gamma
src/drmmode_display.c | 739 +++++++++++++++++++++++++++++++++++++++++++++++++-
src/drmmode_display.h | 27 ++
2 files changed, 763 insertions(+), 3 deletions(-)
--
2.7.4
