Soeren Sandmann wrote:
Siarhei Siamashka writes:
The pipeline as it is now:
1 convert image sample to a8r8g8b8
2 extend sample grid in all directions according to repeat
3 interpolate between sample according to filter
4 transform
5 resample
6 combine
7 store
What is
Siarhei Siamashka writes:
> On Wed, Mar 2, 2011 at 4:16 PM, Soeren Sandmann wrote:
>> Siarhei Siamashka writes:
>>
>>> I'm not a big fan of "let's make this totally universal and future
>>> proof" approach if only a very small fraction of this functionality is
>>> going to be actually used. Mor
On Thu, Mar 3, 2011 at 6:58 PM, Siarhei Siamashka
wrote:
> On Wed, Mar 2, 2011 at 4:16 PM, Soeren Sandmann wrote:
>> Siarhei Siamashka writes:
>>
>>> I'm not a big fan of "let's make this totally universal and future
>>> proof" approach if only a very small fraction of this functionality is
>>>
On Wed, Mar 2, 2011 at 4:16 PM, Soeren Sandmann wrote:
> Siarhei Siamashka writes:
>
>> I'm not a big fan of "let's make this totally universal and future
>> proof" approach if only a very small fraction of this functionality is
>> going to be actually used. Moreover, I suspect that trying to be
On Wed, Mar 2, 2011 at 3:16 PM, Soeren Sandmann wrote:
> Siarhei Siamashka writes:
>
>> I'm not a big fan of "let's make this totally universal and future
>> proof" approach if only a very small fraction of this functionality is
>> going to be actually used. Moreover, I suspect that trying to be
Siarhei Siamashka writes:
> I'm not a big fan of "let's make this totally universal and future
> proof" approach if only a very small fraction of this functionality is
> going to be actually used. Moreover, I suspect that trying to be too
> general was responsible for slowing down the original "P
On Fri, Feb 25, 2011 at 11:18 PM, Andrea Canciani wrote:
> On Fri, Feb 25, 2011 at 2:00 PM, Siarhei Siamashka
> wrote:
>> I'm cautiously interested in getting planar YUV format support added to
>> pixman/cairo for the purpose of implementing some kind of reasonably
>> well performing software fal
On Fri, Feb 25, 2011 at 9:18 PM, Andrea Canciani wrote:
> I would suggest the creation of a new opaque pixman type, pixman_format_t,
> that represents the format of a bits image with more flexibility than
> the existing
> pixman_format_code_t.
>
> To represent the existing formats (and many more,
On Fri, Feb 25, 2011 at 2:00 PM, Siarhei Siamashka
wrote:
> On Tuesday 09 March 2010 18:09:57 Benjamin Otte wrote:
>> Hey,
>>
>> Here's an update on my work on YUV planar support, also known as "what
>> we got from the gstreamer-cairo hackfest". I've reworked my experimental
>> code from back then
On Tuesday 09 March 2010 18:09:57 Benjamin Otte wrote:
> Hey,
>
> Here's an update on my work on YUV planar support, also known as "what
> we got from the gstreamer-cairo hackfest". I've reworked my experimental
> code from back then to incorporate the things we agreed on. It is not
> complete yet
On Thu, 2010-05-13 at 22:02 +0200, Soeren Sandmann wrote:
> I do think that interpolation should not be the
> responsibility of the sample fetchers though because that ultimately
> leads to them having to deal with fractional positions.
>
Yeah, I fully agree here. I think what we should have is tw
Benjamin Otte writes:
> > Your patches add YCbCr support at the first stage in the sense that it
> > converts each Y sample to a8r8g8b8 using the nearest neighbor Cb and
> > Cr samples.
> >
> You did not look at the (old) YUV branch by accident and used the
> current (planar) branch, right? I'm
Benjamin Otte wrote:
I added unmultiplied support for one simple reason really: YCbCr with
alpha channel is unmultiplied. So it seemed rather trivial to support
unmultiplied ARGB, too.
Actually YCbCr can be "premulitiplied". It is a linear transform of some
RGB data and since RGB can be premu
Hi Benjamin,
> Here's an update on my work on YUV planar support, also known as "what
> we got from the gstreamer-cairo hackfest". I've reworked my experimental
> code from back then to incorporate the things we agreed on. It is not
> complete yet, but only misses details. So if you're a maintaine
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