Re: [PATCH v18 1/4] compositor-drm: Disallow overlapping overlay planes

2018-07-10 Thread Pekka Paalanen
On Tue, 10 Jul 2018 14:56:15 +0100 Daniel Stone wrote: > The scanout plane strictly stacks under all overlay planes, and the > cursor plane above. However, the stacking of overlay planes with respect > to each other is undefined. > > We can control the stacking order of overlay planes with the z

[PATCH v18 1/4] compositor-drm: Disallow overlapping overlay planes

2018-07-10 Thread Daniel Stone
The scanout plane strictly stacks under all overlay planes, and the cursor plane above. However, the stacking of overlay planes with respect to each other is undefined. We can control the stacking order of overlay planes with the zpos property, though this significantly complicates plane assignmen