Slowdown/Graphical Issues(Bugs Bunny in Double Trouble)

[GoogleCodeExporter]

What steps will reproduce the problem?
1.Play Bugs Bunny in Double Trouble
2.Choose the "Bully For Bugs" level
3.Keep the bull on-screen and try to have it launch you in the air to get the 
dynamite

What is the expected output? What do you see instead?
Whenever the bull is onscreen, the game experiences very noticeable slowdown. 
Sometimes, while the bull is onscreen, the screen gets filled with garbled 
graphics for a few frames. No slowdown occurs on real hardware at this moment. 
This can also happen underground, near the lions. I haven't played the game 
enough to see if it happens elsewhere, but it's possible. 

What version of the emulator are you using (official, SVN revision,...)?
r457

Please provide any additional information below (Video settings, Console
region,...)
Emulator settings are at their defaults, Wii region is NTSC-U and the game 
region is set to Automatic (USA)

Original issue reported on code.google.com by Ice...@gmail.com on 8 Jun 2010 at 5:08

[GoogleCodeExporter]

Indeed, there is something going wrong with the screen resolution I think.
Weird.

Original comment by ekeeke31@gmail.com on 8 Jun 2010 at 7:09

• Changed state: Accepted
• Added labels: CoreEmulation, Priority-High, Type-Defect

[GoogleCodeExporter]

First time I ever saw this, the game is actually switching from H32 (256 
pixels) to H40 (320 pixels) resolution modes during Vertical Blanking then back 
to H32 on line 0. 

I bet the problem is coming from this and the way genplus-gx handles switches 
between those 2 width for texture rendering (frame are skipped because of 
resolution changes and graphics got bargled).

Original comment by ekeeke31@gmail.com on 8 Jun 2010 at 7:17

[GoogleCodeExporter]

Fixed in r458

Original comment by ekeeke31@gmail.com on 10 Jun 2010 at 7:57

• Changed state: Verified