[Mesa-dev] [PATCH v13 02/36] egl/main: add support for fourth plane tokens

[Daniel Stone]

Hey,

On 22 May 2017 at 13:43, Emil Velikov <emil.l.velikov at gmail.com> wrote:
> On 19 May 2017 at 10:37, Daniel Stone <daniels at collabora.com> wrote:
>> The EGL_EXT_dma_buf_import_modifiers extension adds support for a
>> fourth plane, just like DRM KMS API does.
>>
>> Bump maximum dma_buf plane count to four.
>
> Patch 1 and 2 are
> Reviewed-by: Emil Velikov <emil.velikov at collabora.com>
> Feel free to push instead of constantly rebasing.
>
> Aside:
> AFAICT the EXT_image_dma_buf_import_modifiers extension does not
> mention much about the 4th plane fd/pitch/other properties.
> Might want to add a small note that all they behave just like PLANE0-2
> in EXT_image_dma_buf_import.

There is this, from lines 123-135:
    For semi-planar and planar YUV formats, or other formats which require
    multiple memory planes, planes 1, 2 and 3 are specified by the following
    attributes, which have the same meanings as defined above for plane 0:

        * [...]
        * EGL_DMA_BUF_PLANE3_FD_EXT
        * EGL_DMA_BUF_PLANE3_OFFSET_EXT
        * EGL_DMA_BUF_PLANE3_PITCH_EXT

Cheers,
Daniel