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Fix segfault with rgb24 and full_internal_chrome due to non existing alpha

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byte being written after the array.

Originally committed as revision 27628 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale
This commit is contained in:
Michael Niedermayer 2008-09-16 03:49:54 +00:00
parent 1d4113d053
commit d616c8ae3d
1 changed files with 7 additions and 2 deletions
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9
libswscale/swscale.c
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@ -905,29 +905,34 @@ static inline void yuv2rgbXinC_full(SwsContext *c, int16_t *lumFilter, int16_t *
{ {
int i; int i;
int step= fmt_depth(c->dstFormat)/8; int step= fmt_depth(c->dstFormat)/8;
int aidx= 3;
switch(c->dstFormat){ switch(c->dstFormat){
case PIX_FMT_ARGB: case PIX_FMT_ARGB:
dest++; dest++;
aidx= 0;
case PIX_FMT_RGB24: case PIX_FMT_RGB24:
aidx--;
case PIX_FMT_RGBA: case PIX_FMT_RGBA:
YSCALE_YUV_2_RGBX_FULL_C(1<<21) YSCALE_YUV_2_RGBX_FULL_C(1<<21)
dest[aidx]= 0;
dest[0]= R>>22; dest[0]= R>>22;
dest[1]= G>>22; dest[1]= G>>22;
dest[2]= B>>22; dest[2]= B>>22;
dest[3]= 0;
dest+= step; dest+= step;
} }
break; break;
case PIX_FMT_ABGR: case PIX_FMT_ABGR:
dest++; dest++;
aidx= 0;
case PIX_FMT_BGR24: case PIX_FMT_BGR24:
aidx--;
case PIX_FMT_BGRA: case PIX_FMT_BGRA:
YSCALE_YUV_2_RGBX_FULL_C(1<<21) YSCALE_YUV_2_RGBX_FULL_C(1<<21)
dest[aidx]= 0;
dest[0]= B>>22; dest[0]= B>>22;
dest[1]= G>>22; dest[1]= G>>22;
dest[2]= R>>22; dest[2]= R>>22;
dest[3]= 0;
dest+= step; dest+= step;
} }
break; break;