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path: root/Ryujinx.Graphics.Shader/CodeGen/Glsl/HelperFunctions/TexelFetchScale_fp.glsl
blob: 2e166a4be7ec5aad18841c81a648f4afb5de1b3c (plain)
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ivec2 Helper_TexelFetchScale(ivec2 inputVec, int samplerIndex)
{
    float scale = fp_renderScale[1 + samplerIndex];
    if (scale == 1.0)
    {
        return inputVec;
    }
    if (scale < 0.0) // If less than 0, try interpolate between texels by using the screen position.
    {
        return ivec2(vec2(inputVec) * (-scale) + mod(gl_FragCoord.xy, -scale));
    }
    else
    {
        return ivec2(vec2(inputVec) * scale);
    }
}