Function protectExtremeChannels

MyGUIEngine/src/msdfgen/core/MSDFErrorCorrection.cpp:180–187

Marks texel as protected if one of its non-median channels is present in the channel mask.

/// Marks texel as protected if one of its non-median channels is present in the channel mask.
static void protectExtremeChannels(byte *stencil, const float *msd, float m, int mask) {
    if (
        (mask&RED && msd[0] != m) ||
        (mask&GREEN && msd[1] != m) ||
        (mask&BLUE && msd[2] != m)
    )
        *stencil |= (byte) MSDFErrorCorrection::PROTECTED;
}

template <int N>
void MSDFErrorCorrection::protectEdges(const BitmapConstSection<float, N> &sdf) {