color library

[Manu via Digitalmars-d]

Hey cool. Glad to hear you had no problems.
Sorry, I missed it. I had an early night last night (sunday night >_<)
.. Are there recordings to review?

It's an interesting idea; knowing if a colour is convertible to some
other colour without loss... it sounds like it leads to implicit
conversion, but I don't think we want that here.
I'll think on how to do it. It's not really trivial.

On 22 June 2015 at 18:55, Rikki Cattermole via Digitalmars-d
<digitalmars-d at puremagic.com> wrote:
> On 22/06/2015 8:45 p.m., Andrea Fontana wrote:
>>
>> On Monday, 22 June 2015 at 08:08:42 UTC, Rikki Cattermole wrote:
>>>
>>>
>>> Why would IImage support alpha? Shouldn't that be on the color?
>>> If so, the PR does support it see RGBA8 and friends.
>>
>>
>> I said "on color or IImage". Anyway transparency is a property (mask) of
>> an image ("material") rather than of the color itself. A color has no
>> transparency, there's no transparency on gamut. It doesn't make sense
>> for a color: transparency is used only when you add an image over
>> another in order to sum the *colors* of two pixels. They used to pack
>> alpha informations with other pixel infos (color) just for simplicity
>> and to have a convenient way to store info inside a file, I guess.
>>
>>> I just had a look at antigrain. It really is beyond this code. Well
>>> and truly out of scope.
>>
>>
>> I mean it would be useful to grab some ideas from it.
>> And that it would really wonderful to have something like this.
>>
>> However I think it is useful to build the library and interfaces
>> thinking also to possible future developments.
>>
>> Andrea
>
>
> Humm, I can add it as an optional part of the interface like pixel offset.
> Maybe. But it does feel a little less like other libraries out there.
>
> The main reason I'm put off of antigrain is it feels a little too much
> unwieldy to me.
>
> But of course, I can't dismiss your guys suggestions so of course I'll dig
> more deeper into it! Even if I do drag my heels a little bit.