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Interlaced gif support

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git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@21940 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
reimar 2007-01-16 07:12:32 +00:00
parent 410b243885
commit 3d834fb592
1 changed files with 20 additions and 2 deletions
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22
libmpdemux/demux_gif.c
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@ -167,8 +167,26 @@ static int demux_gif_fill_buffer(demuxer_t *demuxer, demux_stream_t *ds)
priv->palette[(y * 4) + 3] = 0;
}
memcpy_transp_pic(dest, buf, w, h, priv->w, gif->Image.Width,
transparency, transparent_col);
if (gif->Image.Interlace) {
uint8_t *s = buf;
memcpy_transp_pic(dest, s, w, h >> 3,
priv->w << 3, gif->Image.Width,
transparency, transparent_col);
s += (h >> 3) * w;
memcpy_transp_pic(dest + (gif->Image.Width << 2), s, w, h >> 3,
priv->w << 3, gif->Image.Width,
transparency, transparent_col);
s += (h >> 3) * w;
memcpy_transp_pic(dest + (gif->Image.Width << 1), s, w, h >> 2,
priv->w << 2, gif->Image.Width,
transparency, transparent_col);
s += (h >> 2) * w;
memcpy_transp_pic(dest + gif->Image.Width, s, w, h >> 1,
priv->w << 1, gif->Image.Width,
transparency, transparent_col);
} else
memcpy_transp_pic(dest, buf, w, h, priv->w, gif->Image.Width,
transparency, transparent_col);
if (refmode == 1) memcpy(priv->refimg, dp->buffer, priv->w * priv->h);
if (refmode == 2 && priv->useref) {