diff options
Diffstat (limited to 'libavcodec')
| -rw-r--r-- | libavcodec/pgxdec.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/libavcodec/pgxdec.c b/libavcodec/pgxdec.c index 30895b51ee..29de103167 100644 --- a/libavcodec/pgxdec.c +++ b/libavcodec/pgxdec.c @@ -95,16 +95,13 @@ error: static inline void write_frame_ ##D(AVFrame *frame, GetByteContext *g, \ int width, int height, int sign, int depth) \ { \ + const unsigned offset = sign ? (1 << (D - 1)) : 0; \ int i, j; \ for (i = 0; i < height; i++) { \ PIXEL *line = (PIXEL*)(frame->data[0] + i * frame->linesize[0]); \ for (j = 0; j < width; j++) { \ - unsigned val; \ - if (sign) \ - val = (PIXEL)bytestream2_get_ ##suffix##u(g) + (1 << (depth - 1)); \ - else \ - val = bytestream2_get_ ##suffix##u(g); \ - val <<= (D - depth); \ + unsigned val = bytestream2_get_ ##suffix##u(g) << (D - depth); \ + val ^= offset; \ *(line + j) = val; \ } \ } \ |