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#ifdef GL_ES
#if defined(PRECISION_MEDIUM)
precision mediump float;
#elif defined(PRECISION_HIGH)
precision highp float;
#endif
#endif
attribute vec2 vert;
attribute vec2 tex_coord;
uniform mat3 transform;
uniform vec2 pixel_size;
varying vec2 top_left_uv;
varying vec2 top_right_uv;
varying vec2 bottom_left_uv;
varying vec2 bottom_right_uv;
void
main()
{
top_left_uv = tex_coord - pixel_size / 2.0;
bottom_right_uv = tex_coord + pixel_size / 2.0;
top_right_uv = vec2(top_left_uv.x, bottom_right_uv.y); // FIXME: this is bottom right
bottom_left_uv = vec2(bottom_right_uv.x, top_left_uv.y);
gl_Position = vec4(transform * vec3(vert, 1), 1);
}
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