Function MNNSamplerNearest

source/backend/cpu/compute/ImageProcessFunction.cpp:799–819

#endif
}
void MNNSamplerNearest(const unsigned char* source, unsigned char* dest, MNN::CV::Point* points, size_t sta, size_t count,
                       size_t iw, size_t ih, size_t yStride, int bpp) {
    dest = dest + bpp * sta;
    MNN::CV::Point curPoints;
    curPoints.fX = points[0].fX;
    curPoints.fY = points[0].fY;
    float dy     = points[1].fY;
    float dx     = points[1].fX;
    float xMax   = iw - 1;
    float yMax   = ih - 1;
    for (int i = 0; i < count; ++i) {
        int y = (int)roundf(__clamp(curPoints.fY, 0, yMax));
        int x = (int)roundf(__clamp(curPoints.fX, 0, xMax));
        curPoints.fY += dy;
        curPoints.fX += dx;
        auto sourcePos = y * yStride + bpp * x;
        for (int j = 0; j < bpp; ++j) {
            dest[bpp * i + j] = source[sourcePos + j];
        }
    }
}

void MNNSamplerC4Nearest(const unsigned char* source, unsigned char* dest, MNN::CV::Point* points, size_t sta,
                         size_t count, size_t capacity, size_t iw, size_t ih, size_t yStride) {