giucam/residual — comment on commit 40010d7cce1d2c750d51c6ba9e25bb3bce3f494a
File: graphics/agl/openglrenderer/gltarget.cpp line 41
By somaen:

Actually, this is the perfect place to heavily optimize the menu in gl for Grim, by not glDrawPixeling the content back, but instead putting the data in a texture and drawing that (until storeContent is called again, invalidating that texture), that way we won't be pushing stuff from system-memory once per frame.