bgfx/3rdparty/glsl-optimizer/tests/fragment/sampler-precision-inES.txt

uniform sampler2D texlow;
uniform mediump sampler2D texmed;
uniform highp sampler2D texhigh;
uniform samplerCube cubelow;
uniform mediump samplerCube cubemed;
uniform highp samplerCube cubehigh;

mediump vec4 xlat_main(in highp vec4 uv) {
    mediump vec4 c;
    c = texture2D(texlow, uv.xy);
    c += texture2D(texmed, uv.xy);
    c += texture2D(texhigh, uv.xy);
    c += textureCube(cubelow, uv.xyz);
    c += textureCube(cubemed, uv.xyz);
    c += textureCube(cubehigh, uv.xyz);
    return c;
}
varying highp vec4 varUV;
void main() {
    mediump vec4 r;
    r = xlat_main(varUV);
    gl_FragData[0] = r;
}