really simple vertex shader transformed

gistfile1.txt

attribute vec4 aPosition;

uniform vec4 gl_mali_ViewportTransform[2];

void main() {
	gl_Position.w = clamp(1.0 / aPosition.w, -1e10, 1e10);
	gl_Position.xyz  = aPosition.xyz * gl_Position.w * gl_mali_ViewportTransform[0].xyz + gl_mali_ViewportTransform[1].xyz;
}