bilinear c4, c3 also c1,c2 done

gistfile1.txt

void resize_bilinear_c4(uint8_t *dst, const uint8_t *src,
                     uint64_t dst_h, uint64_t dst_w, uint64_t src_h,
                     uint64_t src_w) {
    float scale_y = static_cast<float>(src_h) / static_cast<float>(dst_h);
    float scale_x = static_cast<float>(src_w) / static_cast<float>(dst_w);
    
    for (int h = 0; h < dst_h; h++) {
        const int y = (int)MIN(static_cast<uint64_t>(h * scale_y), src_h - 1);
        for (int w = 0; w < dst_w; w++) {
            const int x = (int)MIN(static_cast<uint64_t>(w * scale_x), src_w - 1);
            const uint8_t *input = &src[4 * (y * src_w + x)];
            uint8_t *output = &dst[4 * (h * dst_w + w)];
            for (int k = 0; k < 4; k++) {
                *output++ = *input++;
            }
        }
    }
}

void resize_bilinear_c3(uint8_t *dst, const uint8_t *src,
                     uint64_t dst_h, uint64_t dst_w, uint64_t src_h,
                     uint64_t src_w) {
    float scale_y = static_cast<float>(src_h) / static_cast<float>(dst_h);
    float scale_x = static_cast<float>(src_w) / static_cast<float>(dst_w);
    
    for (int h = 0; h < dst_h; h++) {
        const int y = (int)MIN(static_cast<uint64_t>(h * scale_y), src_h - 1);
        for (int w = 0; w < dst_w; w++) {
            const int x = (int)MIN(static_cast<uint64_t>(w * scale_x), src_w - 1);
            const uint8_t *input = &src[3 * (y * src_w + x)];
            uint8_t *output = &dst[3 * (h * dst_w + w)];
            for (int k = 0; k < 3; k++) {
                *output++ = *input++;
            }
        }
    }
}