Logical Graphics Operations
in [Java Help]
|
Prev: Last Call for Papers Reminder (extended): World Congress on Engineering and Computer Science WCECS 2010
Next: heap size command line, programmatic values, os ps, pmap values
From: Thorsten Kiefer on 16 Jul 2010 05:27 Hi, I want to do some logical computations with my graphics cards. And now I'm wondering if all 16 logical operations of the GPU are available in Java. Are they ? There is something like Graphics.setPaintMode() and Graphics.setXORMode(...). But these are not sufficient for me. I guess Oracel doesn't find the 2D logical operations very useful and did not implement them. Is that the case ? Best Regards Toki
From: Lew on 16 Jul 2010 19:21 Thorsten Kiefer wrote: > But these are not sufficient for me. I guess Oracel doesn't find > the 2D logical operations very useful and did not implement them. > Is that the case ? No. These libraries antedate Oracle's acquisition of Java, and no one knows if Sun found these operations "very useful" or not. And don't > I want to do some logical computations with my graphics cards. > And now I'm wondering if all 16 logical operations of the GPU > are available in Java. Are they ? > There is something like Graphics.setPaintMode() and > Graphics.setXORMode(...). There is no direct relationship between 'java.awt.Graphics' and the graphics card. The Java class depends on the OS's libraries to do its dirty work. If those OS libraries use the graphics card's capabilities, then Java does on their coattails. As for the "16 logical operations", what do they have that 'java.awt.geom.AffineTransform' doesn't provide? -- Lew
From: Roedy Green on 16 Jul 2010 19:26 On Fri, 16 Jul 2010 11:27:52 +0200, Thorsten Kiefer <t.kiefer(a)tokis-edv-service.de> wrote, quoted or indirectly quoted someone who said : >I want to do some logical computations with my graphics cards. >And now I'm wondering if all 16 logical operations of the GPU >are available in Java. Are they ? >There is something like Graphics.setPaintMode() and >Graphics.setXORMode(...). It would be very slow, but you can process images bitwise and do the logical operation in Java. -- Roedy Green Canadian Mind Products http://mindprod.com You encapsulate not just to save typing, but more importantly, to make it easy and safe to change the code later, since you then need change the logic in only one place. Without it, you might fail to change the logic in all the places it occurs.
From: Jeff Higgins on 16 Jul 2010 21:39 On 7/16/2010 5:27 AM, Thorsten Kiefer wrote: > Hi, > I want to do some logical computations with my graphics cards. <http://gpgpu.org/> > And now I'm wondering if all 16 logical operations of the GPU > are available in Java. Are they ? What GPU? What operations? Are you speaking of raster operations? > There is something like Graphics.setPaintMode() and > Graphics.setXORMode(...). <http://download.oracle.com/docs/cd/E17409_01/javase/6/docs/api/> > But these are not sufficient for me. Shrug. Chomp Chomp I guess Oracel doesn't find Do you mean Oragel? Teething pain? Denture pain? > the 2D logical operations very useful and did not implement them. > Is that the case ? Shrug. BLT
From: John B. Matthews on 16 Jul 2010 22:29
In article <i1qphk$aba$1(a)news.albasani.net>, Lew <noone(a)lewscanon.com> wrote: > As for the "16 logical operations", what do they have that > 'java.awt.geom.AffineTransform' doesn't provide? I'm guessing these 16 functions: <http://en.wikipedia.org/wiki/Logic_gate> I can see using java.util.BitSet. How would java.awt.geom.AffineTransform work? -- John B. Matthews trashgod at gmail dot com <http://sites.google.com/site/drjohnbmatthews> |