Re: [PATCH v3 04/14] gpu: ipu-v3: Fix U/V offset macros for planar 4:2:0

2018-08-02 Thread Philipp Zabel
On Wed, 2018-08-01 at 12:12 -0700, Steve Longerbeam wrote: > The U and V offset macros for planar 4:2:0 (U_OFFSET, V_OFFSET, and > UV_OFFSET), are not correct. The height component to the offset was > calculated as: > > (pix->width * y / 4) > > But this does not produce correct offsets for odd va

[PATCH v3 04/14] gpu: ipu-v3: Fix U/V offset macros for planar 4:2:0

2018-08-02 Thread Steve Longerbeam
The U and V offset macros for planar 4:2:0 (U_OFFSET, V_OFFSET, and UV_OFFSET), are not correct. The height component to the offset was calculated as: (pix->width * y / 4) But this does not produce correct offsets for odd values of y (luma line #). The luma line # must be decimated by two to prod