diff options
| -rw-r--r-- | draw/draw_unpack.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/draw/draw_unpack.c b/draw/draw_unpack.c index b60de3b8..6da5e8a3 100644 --- a/draw/draw_unpack.c +++ b/draw/draw_unpack.c @@ -197,7 +197,10 @@ fz_decode_indexed_tile(fz_pixmap *pix, float *decode, int maxval) while (len--) { for (k = 0; k < n; k++) - p[k] = (add[k] + (((p[k] << 8) * mul[k]) >> 8)) >> 8; + { + int value = (add[k] + (((p[k] << 8) * mul[k]) >> 8)) >> 8; + p[k] = CLAMP(value, 0, 255); + } p += n + 1; } } @@ -229,7 +232,10 @@ fz_decode_tile(fz_pixmap *pix, float *decode) while (len--) { for (k = 0; k < n; k++) - p[k] = add[k] + fz_mul255(p[k], mul[k]); + { + int value = add[k] + fz_mul255(p[k], mul[k]); + p[k] = CLAMP(value, 0, 255); + } p += pix->n; } } |