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authorLoren Merritt <lorenm@u.washington.edu>2008-02-25 05:46:53 +0000
committerLoren Merritt <lorenm@u.washington.edu>2008-02-25 05:46:53 +0000
commitbd58e7f730b45e893df2065cd1cf7af3b545e2bf (patch)
tree9ef30bf04f0052e5a2ebc3daa4fd5dc0b9a21ea2
parent8af9090f4f35b9f1a3f6d27d48cd77e7300c7de8 (diff)
downloadffmpeg-bd58e7f730b45e893df2065cd1cf7af3b545e2bf.tar.gz
remove a memcpy
Originally committed as revision 12193 to svn://svn.ffmpeg.org/ffmpeg/trunk
-rw-r--r--libavcodec/pngdec.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/pngdec.c b/libavcodec/pngdec.c
index 1afadd936f..abff1da77b 100644
--- a/libavcodec/pngdec.c
+++ b/libavcodec/pngdec.c
@@ -262,8 +262,8 @@ static void png_handle_row(PNGDecContext *s)
if (s->color_type == PNG_COLOR_TYPE_RGB_ALPHA) {
png_filter_row(&s->dsp, s->tmp_row, s->crow_buf[0], s->crow_buf + 1,
s->last_row, s->row_size, s->bpp);
- memcpy(s->last_row, s->tmp_row, s->row_size);
convert_to_rgb32(ptr, s->tmp_row, s->width);
+ FFSWAP(uint8_t*, s->last_row, s->tmp_row);
} else {
/* in normal case, we avoid one copy */
if (s->y == 0)
@@ -289,7 +289,7 @@ static void png_handle_row(PNGDecContext *s)
break;
png_filter_row(&s->dsp, s->tmp_row, s->crow_buf[0], s->crow_buf + 1,
s->last_row, s->pass_row_size, s->bpp);
- memcpy(s->last_row, s->tmp_row, s->pass_row_size);
+ FFSWAP(uint8_t*, s->last_row, s->tmp_row);
got_line = 1;
}
if ((png_pass_dsp_ymask[s->pass] << (s->y & 7)) & 0x80) {