Java-Gaming.org
Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
Featured games (78)
games approved by the League of Dukes
Games in Showcase (407)
games submitted by our members
Games in WIP (293)
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  
  fastest way to draw a (mutable) bitmap?  (Read 2795 times)
0 Members and 1 Guest are viewing this topic.
Offline erikd

JGO Knight


Medals: 3
Projects: 3


Maximumisness


« Posted 2010-12-21 22:03:57 »

I'm trying to get some performance out of my emulator on Android, and found that a very large performance drain is drawing the final backbuffer to the screen.
If I don't draw the (fully rendered) image, I'm getting about 65fps, but when I draw the image (224x256), it drops to 40-45 fps. Just by drawing 1 image!

Currently, I do it like this:
1  
canvas.drawBitmap(pixels, 0, w, x, 8, w, h, false, paint);

pixels is an int[] with the 224x256 emulated image. Like I said, commenting this out gives me ~50% increase in framerate.

Any ideas to improve this?
I'm testing on an HTC Legend (I read that using Canvas is faster than OpenGL for this, although I haven't verified this myself)

Offline newera31

Senior Member


Medals: 9
Projects: 2



« Reply #1 - Posted 2011-01-01 05:14:13 »

You might want to try making the image a power of two, 256x256.
Offline erikd

JGO Knight


Medals: 3
Projects: 3


Maximumisness


« Reply #2 - Posted 2011-01-27 23:00:10 »

Good suggestion, I'll try that.  Smiley

Pages: [1]
  ignore  |  Print  
 
 
You cannot reply to this message, because it is very, very old.

Play Revenge of the Titans! The situation is critical. We need fancy commanders to defend Earth, the moon, Mars!
 
Get high quality music tracks for your game!

Add your game by posting it in the WIP section,
or publish it in Showcase.

The first screenshot will be displayed as a thumbnail.

The invasion has landed! On Mars! And you're there to beat 'em!
cubemaster21 (88 views)
2013-05-17 21:29:12

alaslipknot (96 views)
2013-05-16 21:24:48

gouessej (128 views)
2013-05-16 00:53:38

gouessej (123 views)
2013-05-16 00:17:58

theagentd (131 views)
2013-05-15 15:01:13

theagentd (119 views)
2013-05-15 15:00:54

StreetDoggy (161 views)
2013-05-14 15:56:26

kutucuk (184 views)
2013-05-12 17:10:36

kutucuk (185 views)
2013-05-12 15:36:09

UnluckyDevil (191 views)
2013-05-12 05:09:57
Complex number cookbook
by Roquen
2013-04-24 12:47:31

2D Dynamic Lighting
by Oskuro
2013-04-17 16:46:12

2D Dynamic Lighting
by Oskuro
2013-04-17 16:45:57

2D Dynamic Lighting
by Oskuro
2013-04-17 16:23:20

Noise (bandpassed white)
by Roquen
2013-04-05 17:36:01

Noise (bandpassed white)
by Roquen
2013-04-03 16:17:38

Java Data structures
by Roquen
2013-03-29 13:21:12

Topic Request
by kutucuk
2013-03-22 21:42:01
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!
Page created in 0.079 seconds with 21 queries.