Hi John,
On 8 March 2018 at 19:43, John Stultz <john.stultz@xxxxxxxxxx> wrote:
> On Thu, Mar 8, 2018 at 3:10 AM, Robert Foss <robert.foss@xxxxxxxxxxxxx> wrote:
>>> @@ -76,8 +76,6 @@ uint32_t
>>> DrmGenericImporter::ConvertHalFormatToDrm(uint32_t hal_format) {
>>> return DRM_FORMAT_ABGR8888;
>>> case HAL_PIXEL_FORMAT_RGB_565:
>>> return DRM_FORMAT_BGR565;
>>> - case HAL_PIXEL_FORMAT_YV12:
>>> - return DRM_FORMAT_YVU420;
>>
>> I'm not sure I understand the rationale for removing YVU420.
>
> Mostly its on Alexandru's suggestion, as I don't have any experience
> w/ using YVU420. Per his suggestion, my sense was that since its a
> multi-plane format it was expected to fail with drmModeAddFB2().
>
> If that's incorrect, I'm fine with dropping this change.
drmModeAddFB2 absolutely works with multi-planar formats. I have no
idea about the internals of HWC or why multi-planar formats aren't
supported there though.
Cheers,
Daniel
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