Originally based on work by Rob Herring, this patch changes ValidateDisplay() so that if there is only one plane, we modify Device composited layers to be Client composited.
Without this, on devices with just one plane, nothing gets displayed on the screen. Suggestions for alternative solutions here would be greatly appreciated! Cc: Marissa Wall <[email protected]> Cc: Sean Paul <[email protected]> Cc: Dmitry Shmidt <[email protected]> Cc: Robert Foss <[email protected]> Cc: Matt Szczesiak <[email protected]> Cc: Liviu Dudau <[email protected]> Cc: David Hanna <[email protected]> Cc: Rob Herring <[email protected]> Signed-off-by: John Stultz <[email protected]> --- v2: * Rework Rob's change to check planes --- drmhwctwo.cpp | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drmhwctwo.cpp b/drmhwctwo.cpp index dfca1a6..6d88c5c 100644 --- a/drmhwctwo.cpp +++ b/drmhwctwo.cpp @@ -695,6 +695,13 @@ HWC2::Error DrmHwcTwo::HwcDisplay::ValidateDisplay(uint32_t *num_types, layer.set_validated_type(HWC2::Composition::Client); ++*num_types; break; + case HWC2::Composition::Device: + /* If we only have one plane, always do Client composition */ + if (primary_planes_.size() + overlay_planes_.size() == 1) { + layer.set_validated_type(HWC2::Composition::Client); + ++*num_types; + break; + } default: layer.set_validated_type(layer.sf_type()); break; -- 2.7.4 _______________________________________________ dri-devel mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/dri-devel
