| From: | |
| Date: | 19 Feb 2001 at 21:52:42 |
| Subject: | Re: Again clipping graphics output |
Hello Serge,
> > If the problem is only present on cgx
> > high-colour screens then it's because you don't set BMF_MINPLANES
> > when allocating the off-screen bitmap.
> Could you describe this more precisely?
Even if you supply a cgx bitmap as friend and give a depth >8 then cgx
will still return a planar bitmap. But if you're dealing with vector
graphics you might be better off using AllocRaster + BltTemplate.
> The most interesting is
> the fact that, according to my user bug reports, this began to
> happen as soon as I began to use layers library.
Does the problem exist for both CGX and P96? CGX comes with its own
layer.library but P96 only apply minor patches to the existing
layers.library, so that one should be compatible with layer "hacks" --
but as I stated earlier you're not really allowed to mix custom
layer.library use with intuition screens.
> [...] What software should they use on graphics boards than?
Use what ever works -- for me that's P96! ;-)
>>>>> The problem in this case is, that I do not know, and can't
>>>>> calculate the size of future graphics.
>> hmm... I'm quite sceptical here ;-)
> The user draws vector graphics, and can move it on his will. Any
> scepticism left?
I see why you might feel it quite redundant to write your own clipping
functions but I fail to see it as impossible.
Kind regards Allan
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