From 84a80ac15de802dfea32d83206deafadbd1947cb Mon Sep 17 00:00:00 2001 From: Andreas Rheinhardt Date: Fri, 15 Apr 2022 16:59:19 +0200 Subject: [PATCH] avcodec/pgxdec: Hoist branch out of loop Reviewed-by: Paul B Mahol Signed-off-by: Andreas Rheinhardt --- libavcodec/pgxdec.c | 9 +++------ 1 file 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; \ } \ } \