Results for spec@arb_gpu_shader5@texturegatheroffset@fs-rgba-1-uint-2drect

Failed to compile fragment shader: ERROR: 0:9: Use of undeclared identifier 'gl_FragColor'
ERROR: 0:9: Argument 3 to function 'textureGatherOffset' must be a constant expression

source:
#version 150
#extension GL_ARB_texture_gather: require
#extension GL_ARB_gpu_shader5: require

uniform usampler2DRect s;
uniform ivec2 o1,o2;

void main() {
	gl_FragColor = vec4(1.0/255.0) * textureGatherOffset(s, gl_FragCoord.xy  , o1+o2 , 1);
}

PIGLIT_SOURCE_DIR="/Users/vlee/workspace/piglit" PIGLIT_PLATFORM="mixed_glx_egl"