Function __clamp

source/backend/cpu/compute/ImageProcessFunction.cpp:739–741

static inline float __clamp(float v, float minV, float maxV) {
    return std::max(std::min(v, maxV), minV);
}

static void _sampleBilinearCommon(const unsigned char* source, unsigned char* dest, MNN::CV::Point* points, size_t count,
                                  size_t iw, size_t ih, size_t yStride, size_t bpp) {