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dix: make SwapLongs() inline

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a) trade a little bit of code size for speed
   (depending on exact caller, compiler might also optimize a lot)
b) reduce the need for exported, but non-public symbol

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
This commit is contained in:
Enrico Weigelt, metux IT consult
2025-12-02 16:59:32 +01:00
committed by Enrico Weigelt
parent 090c68e13d
commit a173278c4f
2 changed files with 26 additions and 26 deletions
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28
dix/dix_priv.h
View File

@@ -767,8 +767,32 @@ int dixAllocColor(ClientPtr client, Colormap cmap, CARD16 *red,
void ReplyNotSwappd(ClientPtr pClient, int size, void *pbuf) _X_NORETURN;
/* needed by some internal modules */ _X_EXPORT
void SwapLongs(CARD32 *list, unsigned long count);
/*
* Byte swap a list of CARD32s
*
* @param list pointer to list of clients
* @param count amount of CARD32s to swap
*/
static inline void SwapLongs(CARD32 *list, unsigned long count) {
while (count >= 8) {
swapl(list + 0);
swapl(list + 1);
swapl(list + 2);
swapl(list + 3);
swapl(list + 4);
swapl(list + 5);
swapl(list + 6);
swapl(list + 7);
list += 8;
count -= 8;
}
if (count != 0) {
do {
swapl(list);
list++;
} while (--count != 0);
}
}
#define SwapRestL(stuff) \
SwapLongs((CARD32 *)(stuff + 1), (client->req_len - (sizeof(*stuff) >> 2)))

24
dix/swapreq.c
View File

@@ -60,30 +60,6 @@ SOFTWARE.
/* Thanks to Jack Palevich for testing and subsequently rewriting all this */
/* Byte swap a list of longs */
void
SwapLongs(CARD32 *list, unsigned long count)
{
while (count >= 8) {
swapl(list + 0);
swapl(list + 1);
swapl(list + 2);
swapl(list + 3);
swapl(list + 4);
swapl(list + 5);
swapl(list + 6);
swapl(list + 7);
list += 8;
count -= 8;
}
if (count != 0) {
do {
swapl(list);
list++;
} while (--count != 0);
}
}
/* Byte swap a list of shorts */
void
SwapShorts(short *list, unsigned long count)