Faster Alternatives to glReadPixels and glTexImage2D in OpenGL ES | Cedric Fung (vecio)Faster Alternatives to glReadPixels and glTexImage2D in OpenGL ES In the development of Shou, I’ve been using GLSL with NEON to manipulate image rotation, scaling and color conversion, before send them to video encoder. So I need a very efficient way to transfer pixels between OpenGL and memory space. The glTexImage2D and glReadPixels performance are very unacceptable, especially for some specific
