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Use memcpy instead of the very inefficient bytecopy where both are correct

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(i.e. no overlap of src and dst is possible).

Originally committed as revision 18569 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Reimar Döffinger 2009-04-17 17:20:48 +00:00
parent 110baa2e99
commit 44c9efcb57
1 changed files with 5 additions and 5 deletions
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10
libavcodec/xan.c
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@ -148,7 +148,7 @@ static void xan_unpack(unsigned char *dest, const unsigned char *src, int dest_l
size = opcode & 3;
if (dest + size > dest_end)
return;
bytecopy(dest, src, size); dest += size; src += size;
memcpy(dest, src, size); dest += size; src += size;
size = ((opcode & 0x1c) >> 2) + 3;
if (dest + size > dest_end)
@ -164,7 +164,7 @@ static void xan_unpack(unsigned char *dest, const unsigned char *src, int dest_l
size = byte1 >> 6;
if (dest + size > dest_end)
return;
bytecopy (dest, src, size); dest += size; src += size;
memcpy(dest, src, size); dest += size; src += size;
size = (opcode & 0x3f) + 4;
if (dest + size > dest_end)
@ -181,7 +181,7 @@ static void xan_unpack(unsigned char *dest, const unsigned char *src, int dest_l
size = opcode & 3;
if (dest + size > dest_end)
return;
bytecopy (dest, src, size); dest += size; src += size;
memcpy(dest, src, size); dest += size; src += size;
size = byte3 + 5 + ((opcode & 0xc) << 6);
if (dest + size > dest_end)
@ -198,12 +198,12 @@ static void xan_unpack(unsigned char *dest, const unsigned char *src, int dest_l
if (dest + size > dest_end)
return;
bytecopy (dest, src, size); dest += size; src += size;
memcpy(dest, src, size); dest += size; src += size;
}
}
size = opcode & 3;
bytecopy(dest, src, size); dest += size; src += size;
memcpy(dest, src, size); dest += size; src += size;
}
static inline void xan_wc3_output_pixel_run(XanContext *s,