Romaine, I am only called from Andrioid with a useable GL10 context from GLSurfaveView.Renderer.onDrawFrame (or onSurfaceXXX). If I save the value and try to use it from another thread, it does not work. Please ignore the question of locking. I was trying to inform you that I have been developing software for 35 years and wasn't asking anything stupid. I know I cannot use the context from two thread simultaneously. That is what the locking is for. In this manner, I am able to set the gl context on a different thread and use it successfully on iOS, OSX, Win32, etc. The OpenGL ES spec says nothing about Andrioid, which perhaps is an act of discretion ...
On Saturday, June 30, 2012 4:33:32 PM UTC-7, gl...@wanderfulstorybooks.com wrote: > > Hello, > > I am optimizing an OpenGL-based application ported from that other > major mobile OS and find that I cannot successfully access the GL > context from anything other than the rendering thread of > GLSurfaceView. What I CAN do on other platforms is upload my single > (and large) texture to GL prior to needing to render the texture > itself. This is a 640x480 8-bit RGB texture that takes some time to > upload to the chip and needs to be done every time I realize a new > frame of animation from the background system memory buffer. I'm sure > you can appreciate the savings in execution time if I can perform this > upload from another thread when I have nothing left to do but wait for > GLSurfaceView's rendering thread to call me. All is synchronized > safely as evidenced by the successful release of this software using > this very same technique on that-other-platform-that-shall-not-be > named. Things are very smooth and zippy on that platform, but Android > currently suffers by comparison. Is there any way to do this? > > > Thanks > > Glenn -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
