Do you use NPOT textures?
Non power of two textures are not optimal in performance, lightly
saying.

On Mar 13, 3:52 pm, Alex Rempel <alexey.rem...@googlemail.com> wrote:
> Hi piplz,
>
> I'm trying to develop a little LiveWallpaper engine for OpenGL GLES20,
> for now "just" in 2D. After I got around all the thread/event-problems
> because of the wallpaper issues and after I booh'ed at the 60fps I now
> inly have one grudge:
>
> Drawing just one single big PNG loaded as GL_RGBA.UNSIGNED_BYTE on 2
> triangles representing the background takes away 35 fps, regardless of
> blending mode being enabled or not!
>
> What I tried:
> - driving the source image resolution down doesn't help, it's the size
> of the quad to blit
> What I could try:
> - binding the "big" image just once after loading instead of doing it
> in every frame
>
> Is there something I might have missed?

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