diff options
| -rw-r--r-- | fastiv-io.c | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/fastiv-io.c b/fastiv-io.c index f5b3b1a..64bbb3c 100644 --- a/fastiv-io.c +++ b/fastiv-io.c @@ -710,7 +710,7 @@ read_spng_thumbnail( ihdr.color_type == SPNG_COLOR_TYPE_TRUECOLOR_ALPHA || !spng_get_trns(ctx, &trns)) { for (size_t i = size / sizeof *output; i--; ) { - uint8_t *unit = (uint8_t *) &data[i], + const uint8_t *unit = (const uint8_t *) &data[i], a = unit[3], b = unit[2] * a / 255, g = unit[1] * a / 255, @@ -719,12 +719,8 @@ read_spng_thumbnail( } } else { for (size_t i = size / sizeof *output; i--; ) { - uint8_t *unit = (uint8_t *) &data[i], - a = unit[3], - b = unit[2], - g = unit[1], - r = unit[0]; - output[i] = a << 24 | r << 16 | g << 8 | b; + uint32_t x = g_ntohl(data[i]); + output[i] = x << 24 | x >> 8; } } |