tree 747c456e97499ad2f1b3bcc055d195161e315453
parent e293fa3c74e08ee32ae7a68a0365c4c7d0707bfd
author Jonas Larsson <ljonas@google.com> 1554273397 -0700
committer June Tate-Gans <jtgans@google.com> 1554328396 -0700

Honor bufferpool stride alignment when rendering overlays

Buffer pool may be allocated by hardware specific routines
that specify specific stride alignment. When rendering
overlays we must honor the specified constraints or risk
garbage being rendered downstream.

In the current specific use case the downstream element
is glupload, which NXP has modified to require a stride
that's 16*bpp aligned for their Vivante specific fastpath
to work. They also disabled all the standard fallback paths
for dmabufs assumed present, so unless upstream adheres
to the HW constrains garbage is rendered.

Change-Id: I2710446ddd4a9e23da5888c5a04f40833e28cbb5