Function stbi__psd_decode_rle

lite/example/cpp_example/mge/cv/stb_image.h:6700–6737

}

static int stbi__psd_decode_rle(stbi__context* s, stbi_uc* p, int pixelCount) {
    int count, nleft, len;

    count = 0;
    while ((nleft = pixelCount - count) > 0) {
        len = stbi__get8(s);
        if (len == 128) {
            // No-op.
        } else if (len < 128) {
            // Copy next len+1 bytes literally.
            len++;
            if (len > nleft)
                return 0;  // corrupt data
            count += len;
            while (len) {
                *p = stbi__get8(s);
                p += 4;
                len--;
            }
        } else if (len > 128) {
            stbi_uc val;
            // Next -len+1 bytes in the dest are replicated from next source byte.
            // (Interpret len as a negative 8-bit int.)
            len = 257 - len;
            if (len > nleft)
                return 0;  // corrupt data
            val = stbi__get8(s);
            count += len;
            while (len) {
                *p = val;
                p += 4;
                len--;
            }
        }
    }

    return 1;
}

static void* stbi__psd_load(
        stbi__context* s, int* x, int* y, int* comp, int req_comp,