[cairo] [PATCH 12/43] drm: allow CAIRO_FORMAT_RGB30
ldo at geek-central.gen.nz
Wed Dec 16 11:45:52 PST 2015
On Wed, 16 Dec 2015 12:02:34 +0100, Enrico Weigelt, metux IT consult
> On 15.12.2015 21:20, Lawrence D'Oliveiro wrote:
>> On Tue, 15 Dec 2015 20:49:52 +0100, Enrico Weigelt, metux IT consult
>>> + case CAIRO_FORMAT_RGB30:
>>> cache->buffer.map0 = MAPSURF_32BIT | MT_32BIT_ARGB8888;
>> I assume the code is not actually looking at the pixel components,
>> otherwise this cannot be correct.
> Well, I'm a bit naive at this point - I just assmed that on RGB30
> the upper two bits are just zero (and it's still 4 byte per pixel)
> OTOH, we could just declare rgb30 as unsupported.
> What's your oppinion ?
I don’t know anything about Linux DRM. :)
I just saw “MT_32BIT_ARGB8888” and thought “that’s not what RGB30
means”. If all it means is “4 bytes per pixel” (and doesn’t look at
how the components are divided up), then fine.
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