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  Warning: glDeleteTextures broken on Qualcomm drivers  (Read 2822 times)
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Offline ryanm

Senior Devvie


Projects: 1
Exp: 15 years


Used to be bleb


« Posted 2010-11-14 09:03:31 »

There are few things worse than broken library implementations, so I thought I'd post a warning for others.

Qualcomm's (present in most android devices) implementation of glDeleteTextures raises GL_INVALID_VALUE if you try to delete zero textures, in violation of the specification.

ಠ_ಠ
Offline princec

« JGO Spiffy Duke »


Medals: 793
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Exp: 16 years


Eh? Who? What? ... Me?


« Reply #1 - Posted 2010-11-14 10:19:06 »

Annoying yes, but then why would you do that anyway?  Roll Eyes

Cas Smiley

Offline ryanm

Senior Devvie


Projects: 1
Exp: 15 years


Used to be bleb


« Reply #2 - Posted 2010-11-17 14:39:55 »

Yeah, happily it's easy to avoid once you know you have to.
The context: recreating textures after they may possibly have been zapped when the activity is in the background, so it was a glDeleteTextures( textureList.size(), ...) in onSurfaceCreated(). Obviously at startup I don't have any textures loaded yet, so it instantly raises GL_INVALID_VALUE.

In other news, today I learned that annotations with primitive array values cause pre-froyo Dalvik to segfault. Every time.
ಠ_ಠ
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