diff options
| author | Dorian Johnson <2011@dorianj.net> | 2011-06-21 19:23:17 +0400 |
|---|---|---|
| committer | Dorian Johnson <2011@dorianj.net> | 2011-06-21 19:23:17 +0400 |
| commit | 8c8c87094c43747395e63546d658ea39ef570ccf (patch) | |
| tree | c305c75a32c9c056eed01d51f64ff8b01bbe3a3e | |
| parent | 06814eabcf9d3fd24c8c68cfda6da8a118a640ae (diff) | |
libfreerdp-gdi: change gdi_copy_mem to simply use memcpy for better performance
gdi_copy_mem is a performance critical region, called for each scanline in many
graphics routines. This patch changes it to simply call memcpy, which is far
faster than a naive c loop. More performance could be squeezed out thru other
methods, but this is low hanging fruit with no adverse affects or compilation
requirements.
| -rw-r--r-- | libfreerdp-gdi/gdi.c | 18 |
1 files changed, 1 insertions, 17 deletions
diff --git a/libfreerdp-gdi/gdi.c b/libfreerdp-gdi/gdi.c index 402b0d2..8135caa 100644 --- a/libfreerdp-gdi/gdi.c +++ b/libfreerdp-gdi/gdi.c @@ -311,23 +311,7 @@ gdi_rop3_code(uint8 code) void gdi_copy_mem(uint8 * d, uint8 * s, int n) { - while (n & (~7)) - { - *(d++) = *(s++); - *(d++) = *(s++); - *(d++) = *(s++); - *(d++) = *(s++); - *(d++) = *(s++); - *(d++) = *(s++); - *(d++) = *(s++); - *(d++) = *(s++); - n = n - 8; - } - while (n > 0) - { - *(d++) = *(s++); - n--; - } + memcpy(d, s, n); } void |