Multithreaded resource loading

**WILL** · 04-10-2010, 10:04 PM

Well I gat back from work and gave it a run. For the most part it runs just fine, graphics display and the sound clip plays too without any popup errors. However the one bug I found was that most of the faces were showing a block of glitchy and random static instead of their respective sprite. Here is a couple of screenies to show basically what it was doing.

demo08_screen01.jpg demo08_screen02.jpg

Go ahead and send me an update or tweaked version if you like. I can be your 'real test run' on the current iMacs if you like.

My system specs are:

CPU: Intel Core i7 (Quad Core)
GPU: ATI Radeon HD 4850
Screen Res: 2560 x 1440 (27" screen)
RAM: 4GB DDR3
OS: Mac OS X 10.6.4

**Stoney** · 04-10-2010, 11:19 PM

I've got the same problem WILL does when running the application on my MacBook Pro (Core 2 Duo 2.53 GHz, NVidia GeForce 9400 graphics card and 4 GB DDR3 RAM).
Some sprites seem that they are not loaded correctly which seems to be always different sprites when re-running the application.

**WILL** · 04-10-2010, 11:24 PM

Just a heads up, I ran it again (twice; ran it, Command-Q, ran it) just now out of curiosity and now ALL the images (including the glowy ZenGL image) except for the speaker and the x button and the label for the text shows some form of glitchy garble.

**Andru** · 04-10-2010, 11:30 PM

Tanks for tests. Seems I found the bug

When the second thread loading texture to videocard(glTexImage2D) in first I'm tried to do glBindTexture. Now I changed something in my library, and it should work correctly(anyway now it work's correctly in my VirtualBox

). I will update demo soon.

**Andru** · 04-10-2010, 11:49 PM

Try this one.

**WILL** · 05-10-2010, 04:11 AM

Well that one worked a whole lot better.

The x button doesn't play the song clip anymore but I do hear a 'click' sound when I do click on the window.

All the images are fine now, but it does seem like you have any vsync turned on, which for OpenGL I don't think you can set in program anyhow. Am I right?

Nice job!