Dependent texture reads performance

Thanks for the quick answer! Just to clarify my question: with dependent texture reads I meant the ability of old OpenGL 2.0 devices to pre-fetch texture data before even running the fragment shader IF the texture coordinates were used unchanged in the fragment shader.

Thanks for the quick answer! Just to clarify my question: with dependent texture reads I meant the ability of old OpenGL 2.0 devices to pre-fetch texture data before even running the fragment shader IF the texture coordinates were used unchanged in the fragment shader.

Don't think Mali ever did that - with enough threads running you don't need to bother. 

Cool thanks! This was a common performance optimization on PowerVR OpenGL 2.0 HS (old iPhones too). So was wondering how that did apply here.