libXrender - documentation?

[Alex Deucher]

On Wed, Jan 21, 2009 at 8:14 AM, Thomas Dickey <dickey at his.com> wrote:
> On Wed, 21 Jan 2009, Clemens Eisserer wrote:
>
>> Hi Charles,
>>
>> Unfourtunatly XRender is not very well documented, probably the best
>> thing available is the specification.
>
> hmm - googling on that (xrender specification) doesn't find much - just
> these random notes here for instance:
>
>        http://keithp.com/~keithp/render/protocol.html
>
> which only covers a very small fraction of the library.
>
> (Since it's apparently undocumented - I looked some time ago and concluded
> that the documentation covered at most 10% of the code, the "best" thing
> available would appear to be the source code - with the caveat that
> change-history also appears to be lacking).
>
>> The reason is that most programmers use higher-level APIs like Cairo
>> or QT4 to access XRender, so if you don't have a good reason why you
>> directly want to mess with it I recommend using cairo too.
>
> In that case, a pointer to the detailed api of cairo would help Charles.

http://cgit.freedesktop.org/xorg/proto/renderproto/tree/renderproto.txt

Alex