libraries/evas/src/modules/engines/gl_common/shader/filter_invert.shd


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#ifdef GL_ES
#ifdef GL_FRAGMENT_PRECISION_HIGH
precision highp float;
#else
precision mediump float;
#endif
#endif
uniform sampler2D tex;
varying vec4 col;
varying vec2 tex_c;
void main()
{
   gl_FragColor = (vec4(0, 1.0, 1.0, 1.0) - texture2D(tex, tex_c.xy).bgra)*col;
}