On Mon, 25 Oct 2010, Albert Astals Cid wrote:
A Dilluns, 25 d'octubre de 2010, vàreu escriure:
On Mon, 25 Oct 2010, Albert Astals Cid wrote:
A Dilluns, 25 d'octubre de 2010, Vincent Torri va escriure:
On Mon, 25 Oct 2010, Albert Astals Cid wrote:
A Dilluns, 25 d'octubre de 2010, Vincent Torri va escriure:
Hey,
Hi
I have written a small patch for setting external data to the
SplashBitmap class.
What's the use case for this?
I have a lib that uses objects to display a BGRA data. Those objects own
that data. Currently, i get the pppler data, my object data, i do a
memcpy and set my data. With the patch, no need for the memcpy : i pass
my data to the splash bitmap and poppler fill it with the pdf page
content. At least, it's what i understood from the code. I hope I'm not
wrong.
I'm totally lost here, you mean you want to use your data as "background"
for poppler to draw over it?
yes.
* what about alpha ? Afaics, it's just allocated memory with
a getter, that's all.
Well, it holds the alpha information, i understand you probably want to
set it too.
ok. Not sure what to do if my external data already holds alpha channel,
like in BGRA, ARGB etc... formats
I don't see that as supported in SplashColorMode, so if my guess is right
that you want to use your initial data as "background", painting will
fail if the data is not in the correct SplashColorMode
Indeed. That's up to the user to know what it does if he provide his own
data. That must be mentioned in the doc.
Ok, i understand you are at least working for a patch for SplashOutputDev too,
right?
Yes. I also have to pass that data to the OutputDev too. When you say 'at
least', there are other places to change ?
Vincent Torri
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