I'm looking for an easy to use/port 2D graphics library for OS4. Something that can render filled polygons, thick lines and curves, etc. The graphics.library we have today just sux for any kind of vector graphics application. Ideally, I'd like a Java2D-like library to use with affine transforms and the like.

I suppose I could also just make the jump to 3D (z=0) but Warp3D is too primitive for my needs and there is no OpenGL-like solution available yet.

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@ssolie

I guess that is just what you are used to isn't it...but I have made a vector graphics routine with the graphics library. It works fine. I use the AreaDraw function to make the filled polygons. You can see the result on www.os4depot.net.

This demo I have uploaded is just a test. Now I have made my own line routine that can support texturemapping as well.

The curved lines you need to make yourself I guess. It is also more fun isn't it?
I made a formula that uses 3 points to draw a curved line. It uses polynomie of 2nd degree, but maybe I should try doing it with cosine and sine instead.. I haven't tried to implement the formula in a routine though.

@ssolie


How about this one ?

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@ssolie

Quote:

g2 is an easy to use, portable and powerful 2D graphics library. It provides a comprehensive set of functions for simultaneous generation of graphical output on different types of devices. Following devices are currently supported: PostScript, X11, PNG and JPEG (using gd) and Win32 (xfig is in development). g2 is written in C (ANSI) and additionally has a Fortran and perl interface. See the g2 screenshots.

source: http://g2.sourceforge.net/

or

Quote:

GNU libxmi is a C/C++ function library for rasterizing 2-D vector graphics. It can draw 2-D graphical primitives, including wide polygonal lines and circular and elliptical arcs, into a user-supplied matrix of pixels. Sophisticated line styles, such as multicolored dashing patterns, can be specified. There is also support for filling and texturing polygons.

source: http://www.gnu.org/software/libxmi/libxmi.html
source code: http://ftp.gnu.org/gnu/libxmi/libxmi-1.2.tar.gz

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@Kronos

Quote:

Kronos wrote: @ssolie How about this one ?

looking cool

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@hnl_dk


And one "make" was enough to "port" ist

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@Kronos

Quote:

Kronos wrote: @hnl_dk And one "make" was enough to "port" ist

Great... guess that was using ixemul?

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@Kronos

Pretty cool! Suddenly I realize what is missing in graphics.library.

broch

@hnl_dk


Not for the library (which is pure C++ working on chunk of memory), and the app is
linked with -noixemul.

Only prob was that I couldn't compile any app using it with 2.95.3 (the lib does compile),
and had to switch to 2.95.4.

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@Kronos

Quote:

Kronos wrote: @hnl_dk Not for the library (which is pure C++ working on chunk of memory), and the app is linked with -noixemul. Only prob was that I couldn't compile any app using it with 2.95.3 (the lib does compile), and had to switch to 2.95.4.

Great

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@ssolie

What about coding glyphs using the freetype library? I don't know what they've done to it in OS4 but I've heard they can do antialiasing with that. It may save some memory over doing what Kronos is suggesting.

@Samurai_Crow

Huh ?
The size of the app increases just as much as the function you use (here it is about +70k atm), and you'll need one off-screen buffer something you will need anyways to avoid flickering.

The amount of code that can go out is even bigger than whats has gone in, so the next
version is expected to use slightly less memore compared to the current (which still has
the housemade function AND agg2 in it).

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@Kronos

> How about this one ?

Looks quite impressive! Plus we would get a free SVG viewer that could be used for a new datatype.

@Sprocki

Has anybody tried porting that SVG viewer to the miggy yet? That'd rock mightily.

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@Kronos
Talk about an easy port. Just allocate a buffer and... that's about it.

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@hnl_dk
libxmi looks interesting but it lacks clipping support and seems to be GPL which is not good for a library IMHO.

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@Kronos

Quote:

Kronos wrote: @ssolie How about this one ?

Well, if someone manages to produce a 3.X / 4.0 source I could use it for my dream project
(that is a Warhammer Fantasy Roleplay based RPG for our beloved Amiga!)

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@ErikBauer
Quote:

Well, if someone manages to produce a 3.X / 4.0 source I could use it for my dream project...

You should really read up on the library in some detail. It already works on AmigaOS or any other OS for that matter.

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@ssolie

Quote:

ssolie wrote: @ErikBauer Quote: Well, if someone manages to produce a 3.X / 4.0 source I could use it for my dream project... You should really read up on the library in some detail. It already works on AmigaOS or any other OS for that matter.

Well, the fact is that I am not yet an Amiga programmer...
So I asked in my perfect ignorance...

For now I'm collecting documentations and developing tools, the project yet has to start on the Amiga.

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@Kronos

What I meant was that since FreeType is included with the OS there would be one less library to install on the hard drive and would save on the memory footprint if FreeType is already loaded into memory. As an added bonus you might even get better cache loading if you are using FreeType more than one way at a time.

Maybe I'm wrong about this but I prefer to use libraries that are included in the OS over third party libraries. This keeps the boot partition small and insures that the library will be ported to all future operating systems without the overhead of having to recompile it yourself.