Hi !
Featured games (87)
games approved by the League of Dukes
Games in Showcase (672)
Games in Android Showcase (194)
games submitted by our members
Games in WIP (727)
games currently in development
News: Read the Java Gaming Resources, or peek at the official Java tutorials
    Home     Help   Search   Login   Register   
Pages: [1]
  ignore  |  Print  
  Proper way to create images?  (Read 2673 times)
0 Members and 1 Guest are viewing this topic.
Offline GergisKhan

Junior Devvie

"C8 H10 N4 O2"

« Posted 2002-11-06 14:37:28 »

I start this as a new thread because it really belongs as a tech tip, I think.

In 1.3.1, what is the proper way to create a buffered Image?

There are two that I think are possibles:

Image i = new BufferedImage( width, height, Transparency.TRANSLUCENT);

Image i = new BufferedImage( width, height, BufferedImage.TYPE_INT_ARGB);

There's also:

Image i = gc.createCompatibleImage(width, height, Transparency.TRANSLUCENT);

(or Transparency.BITMASK, or Transparency.OPAQUE).

Which is right?

What's right in 1.4.1?


"Go.  Teach them not to mess with us."
          -- Cao Cao, Dynasty Warriors 3
Offline Themroc

Junior Devvie

« Reply #1 - Posted 2002-11-07 05:59:06 »

Since no on else is answering ...
For 1.3 a good way should be:

This will give you an image that is optimised for blitting to the visible component, it has the same format and so the blit can be done 1:1 with no conversion necessary.

A new BufferedImage(...) will usually not result in a blit-optimal Image
Offline trembovetski

Senior Devvie

If only I knew what I'm talking about!

« Reply #2 - Posted 2002-11-08 03:39:30 »

One can also use GraphicsConfiguration.createCompatibleImage(w, h) or (w, h, Translucency).

This is usable when you don't have a component visible.
A typical way to use it would be
GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment()
GraphicsDevice gd = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gd.getDefaultConfiguration();
Image im = gc.createCompatibleImage(100, 100);

Games published by our own members! Check 'em out!
Legends of Yore - The Casual Retro Roguelike
Offline GergisKhan

Junior Devvie

"C8 H10 N4 O2"

« Reply #3 - Posted 2002-11-08 05:53:32 »

Thanks, guys.

I started using this but there was no appreciable increase in speed.  See my new thread for a possible reason why.


"Go.  Teach them not to mess with us."
          -- Cao Cao, Dynasty Warriors 3
Pages: [1]
  ignore  |  Print  
You cannot reply to this message, because it is very, very old.

IanParcs (45 views)
2016-04-18 14:18:53

KaiHH (45 views)
2016-04-18 08:35:41

KaiHH (75 views)
2016-04-15 12:43:58

theagentd (78 views)
2016-04-14 02:16:17

theagentd (90 views)
2016-04-14 02:15:43

IanParcs (104 views)
2016-04-12 03:51:16

IanParcs (47 views)
2016-04-12 03:50:03

IanParcs (43 views)
2016-04-12 03:49:54

IanParcs (38 views)
2016-04-12 03:49:52

IanParcs (48 views)
2016-04-12 03:49:52
Website offering 3D Models specifically for games for free
by vusman
2016-04-29 12:56:17

List of Learning Resources
by SilverTiger
2016-02-05 09:39:47

List of Learning Resources
by SilverTiger
2016-02-05 09:38:38

List of Learning Resources
by SilverTiger
2016-02-05 09:35:50

Rendering resources
by Roquen
2015-11-13 14:37:59

Rendering resources
by Roquen
2015-11-13 14:36:58

Math: Resources
by Roquen
2015-10-22 07:46:10

Networking Resources
by Roquen
2015-10-16 07:12:30 is not responsible for the content posted by its members, including references to external websites, and other references that may or may not have a relation with our primarily gaming and game production oriented community. inquiries and complaints can be sent via email to the info‑account of the company managing the website of java‑
Powered by MySQL Powered by PHP Powered by SMF 1.1.18 | SMF © 2013, Simple Machines | Managed by Enhanced Four Valid XHTML 1.0! Valid CSS!