bf53f39d24
It turns out that local alpha value of the secondary input is set to 0xFF by the hardware if the secondary input is from scaler(hscaler or vscaler). This makes the layer on this secondary input accidentally cover the layer with higher z-order(if it exists), even though the layer with lower z-order doesn't supply local alpha. This patch zeros the secondary local alpha value to prevent the issue from happening. Users are unlikely to expect local alpha to be correctly scaled, so it looks fine to simply zero the alpha. If we find the unlikely case, the KMS driver may later explicitly do atomic check to invalidate the case. Signed-off-by: Liu Ying <victor.liu@nxp.com> |
||
|---|---|---|
| .. | ||
| acpi | ||
| asm-generic | ||
| clocksource | ||
| crypto | ||
| drm | ||
| dt-bindings | ||
| keys | ||
| kvm | ||
| linux | ||
| math-emu | ||
| media | ||
| memory | ||
| misc | ||
| net | ||
| pcmcia | ||
| ras | ||
| rdma | ||
| scsi | ||
| soc | ||
| sound | ||
| target | ||
| trace | ||
| uapi | ||
| video | ||
| xen | ||