diff options
| -rw-r--r-- | image/webp.c | 20 |
1 files changed, 9 insertions, 11 deletions
diff --git a/image/webp.c b/image/webp.c index ea96c1e43..56d1a5008 100644 --- a/image/webp.c +++ b/image/webp.c @@ -50,7 +50,7 @@ bool webp_convert(struct content *c) unsigned long size; uint8 *Y = NULL, *U = NULL, *V = NULL; int width = 0, height = 0; - long x = 0, y = 0, offset = 0; + uint32 offset = 0; uint8 r, g, b, a; char title[100]; WebPResult res = webp_success; @@ -88,18 +88,16 @@ bool webp_convert(struct content *c) /* Decoded data is RGBA on both big- and little-endian platforms, * so ensure correct byte order. */ - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - offset = 4 * (y * width + x); - imagebufptr = imagebuf + offset; + size = width * height * 4; - a = imagebuf[offset+3]; - b = imagebuf[offset+2]; - g = imagebuf[offset+1]; - r = imagebuf[offset]; + for (offset = 0; offset < size; offset += 4) { + a = imagebuf[offset+3]; + b = imagebuf[offset+2]; + g = imagebuf[offset+1]; + r = imagebuf[offset]; - *imagebufptr = r << 24 | g << 16 | b << 8 | a; - } + imagebufptr = imagebuf + offset; + *imagebufptr = r << 24 | g << 16 | b << 8 | a; } c->width = width; |