[Qt-interest] Adding arbitrary depth to Graphics Scene & Friends

[Javier Urien]

On Tue, Apr 26, 2011 at 12:03, Jason H <scorp1us at yahoo.com> wrote:

> Let me ask this. Is everything in your scene high BPP?
>

No. Input may be, but output should be both HBPP or RGB(A). Of course, HBPP
output without HBPP input sounds ilogical, but it should be possible too.


>
> If so, why not?
>

To answer this let me go back to the purpose of the application I am trying
to build.
The app is a raster processing application, not to confuse with image
processing although they have a lot in common. I think it is safe to say
that image processing is a subset of raster processing.
I have to ingest arbitrary depth and data type images, apply some processing
over the geometry or the digital values of the images and the output might
be the screen, an RGB image (here same as screen) or a HBPP image. In the
first two, the result would be lowered down to representable data as a final
step. But for HBPP I want to get all the processing and keep it HBPP.
Also, I may need vector entities rendered in (A)RGB or in greyscale
replicated over every channel of the HBPP data.
Apply geometric transformations (non-affine) to the HBPP and get a rendered
scene on an HBPP output (file) or RGB (screen).
Use masks during the processing.

I think I can benefit from GS and GV. The objectives are that if I can see
it on screen, I can get it on disk and I can see the lowered BPP versión of
all everything I can get.

Please let me know if there is something not clear enough, English is not my
mother language and I am really getting a lot from your answers.

Thanks.
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