diff options
| -rw-r--r-- | spudec.c | 6 |
1 files changed, 5 insertions, 1 deletions
@@ -153,7 +153,11 @@ static void spudec_process_data(spudec_handle_t *this) len = this->width - x; /* FIXME have to use palette and alpha map*/ memset(this->image + y * this->width + x, cmap[color], len); - memset(this->aimage + y * this->width + x, alpha[color], len); + if (alpha[color] < cmap[color]) { + memset(this->aimage + y * this->width + x, 1, len); + } else { + memset(this->aimage + y * this->width + x, alpha[color] - cmap[color], len); + } x += len; if (x >= this->width) { next_line(this); |