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dix: use single return value in GetDirection 

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Daniel Stone <daniel@fooishbar.org>
Reviewed-by: Jamey Sharp <jamey@minilop.net>
Reviewed-by: Simon Thum <simon.thum@gmx.de>
This commit is contained in:
Peter Hutterer 2011-04-20 13:12:53 +10:00
parent afaa178125
commit 5f8edbe47e
1 changed files with 8 additions and 9 deletions
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17
dix/ptrveloc.c
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@ -516,22 +516,21 @@ DoGetDirection(int dx, int dy){
static int
GetDirection(int dx, int dy){
static int cache[DIRECTION_CACHE_SIZE][DIRECTION_CACHE_SIZE];
int i;
int dir;
if (abs(dx) <= DIRECTION_CACHE_RANGE &&
abs(dy) <= DIRECTION_CACHE_RANGE) {
/* cacheable */
i = cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy];
if(i != 0){
return i;
}else{
i = DoGetDirection(dx, dy);
cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy] = i;
return i;
dir = cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy];
if(dir == 0) {
dir = DoGetDirection(dx, dy);
cache[DIRECTION_CACHE_RANGE+dx][DIRECTION_CACHE_RANGE+dy] = dir;
}
}else{
/* non-cacheable */
return DoGetDirection(dx, dy);
dir = DoGetDirection(dx, dy);
}
return dir;
}
#undef DIRECTION_CACHE_RANGE