Take a look at the sprite drawing code in the apps-for-android code here http://code.google.com/p/apps-for-android/
You will see how you go about drawing a bitmap onto the OpenGL surface. Trying to explain the steps required to re-implement your sample code in Android might have seemed a bit of a big job hence no replies. I have implemented an abstraction for line drawing in my BulletML demo which lets you switch between Canvas and OpenGL here: http://code.google.com/p/netthreads-for-android/ This only handles line drawing though. It's not easy to get your head around this stuff. I spent a lot of time stumbling around towards a solution. Al. On Jun 30, 10:05 pm, TjerkW <[email protected]> wrote: > Nobody can help me? > > On 18 jun, 14:12, TjerkW <[email protected]> wrote: > > > > > Hello All, > > > My game runs fairly well on my phone, but i want to increase the > > performance by usingopengl. > > However currently i use the Canvas. > > I am a beginner inopengl. > > I have to port all my drawing code toopengl. However can somebody > > give me directions. > > For example how do i do the following inopengl: > > > c.save(); > > c.scale(0.3f+scale, 0.3f+scale, width/2, height/2); > > c.drawBitmap( > > bMsg.bitmap, > > width/2 - bMsg.bitmap.getWidth()/2, > > dy+height/2 - bMsg.bitmap.getHeight()/2, > > MESSAGE_PAINT > > ); > > c.restore(); > > > And why cant i just use Canvas as an abstraction layer (facade) foropengl. > > An implementation of canvas could call the correctopenglmethods in > > order to render. > > Why do i have to port all my code. I thought the canvas was a good > > abstraction interface to a drawing surface, > > why do i have to bother withopengl? > > > It looks like this is possible, when is see the following contructor: > > "public Canvas (GL gl)" > > Also the this seems usefull. > > SURFACE_TYPE_GPU Surface type: creates a surface suited to be used > > with the GPU > > > So what should i do? > > Re implementing the GamePainter completely and callopenglfunctions > > directly? > > Or is there some kind of abstraction mechanism, so that i can useOpenGLwith > > just a few lines of code? --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
