#version 120

uniform sampler2D texture1;

float weight[4] = float[] (0.24609375,
                           0.205078125,
                           0.1171875,
                           0.0439453125);

void main()
{
  vec2 uv = gl_TexCoord[0].xy;
  vec3 col = texture2D(texture1, uv).rgb;

  float texel = 1.0 / 128;

  if (true) {
    col *= weight[0];

    for (int i = 1; i < 4; i++) {
      vec2 offset = vec2(texel * float(i), 0.0);
      col += texture2D(texture1, uv + offset).rgb * weight[i];
      col += texture2D(texture1, uv - offset).rgb * weight[i];
    }
  }

  gl_FragColor = vec4(col, 1.0);
}