[Mplayer-cvslog] CVS: main bswap.h,1.3,1.4
Alex Beregszaszi
alex at mplayerhq.hu
Sun Jul 27 23:24:40 CEST 2003
Update of /cvsroot/mplayer/main
In directory mail:/var/tmp.root/cvs-serv25220
Modified Files:
bswap.h
Log Message:
sync with libavcodec (sh4 optim)
Index: bswap.h
===================================================================
RCS file: /cvsroot/mplayer/main/bswap.h,v
retrieving revision 1.3
retrieving revision 1.4
diff -u -r1.3 -r1.4
--- bswap.h 5 Aug 2002 13:04:54 -0000 1.3
+++ bswap.h 27 Jul 2003 21:24:33 -0000 1.4
@@ -1,10 +1,6 @@
#ifndef __BSWAP_H__
#define __BSWAP_H__
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
#ifdef HAVE_BYTESWAP_H
#include <byteswap.h>
#else
@@ -12,7 +8,7 @@
#include <inttypes.h>
#ifdef ARCH_X86
-inline static unsigned short ByteSwap16(unsigned short x)
+static inline unsigned short ByteSwap16(unsigned short x)
{
__asm("xchgb %b0,%h0" :
"=q" (x) :
@@ -21,7 +17,7 @@
}
#define bswap_16(x) ByteSwap16(x)
-inline static unsigned int ByteSwap32(unsigned int x)
+static inline unsigned int ByteSwap32(unsigned int x)
{
#if __CPU__ > 386
__asm("bswap %0":
@@ -37,10 +33,10 @@
}
#define bswap_32(x) ByteSwap32(x)
-inline static unsigned long long int ByteSwap64(unsigned long long int x)
+static inline unsigned long long int ByteSwap64(unsigned long long int x)
{
- register union { __extension__ unsigned long long int __ll;
- unsigned int __l[2]; } __x;
+ register union { __extension__ uint64_t __ll;
+ uint32_t __l[2]; } __x;
asm("xchgl %0,%1":
"=r"(__x.__l[0]),"=r"(__x.__l[1]):
"0"(bswap_32((unsigned long)x)),"1"(bswap_32((unsigned long)(x>>32))));
@@ -48,6 +44,39 @@
}
#define bswap_64(x) ByteSwap64(x)
+#elif defined(ARCH_SH4)
+
+static inline uint16_t ByteSwap16(uint16_t x) {
+ __asm__("swap.b %0,%0":"=r"(x):"0"(x));
+ return x;
+}
+
+static inline uint32_t ByteSwap32(uint32_t x) {
+ __asm__(
+ "swap.b %0,%0\n"
+ "swap.w %0,%0\n"
+ "swap.b %0,%0\n"
+ :"=r"(x):"0"(x));
+ return x;
+}
+
+#define bswap_16(x) ByteSwap16(x)
+#define bswap_32(x) ByteSwap32(x)
+
+static inline uint64_t ByteSwap64(uint64_t x)
+{
+ union {
+ uint64_t ll;
+ struct {
+ uint32_t l,h;
+ } l;
+ } r;
+ r.l.l = bswap_32 (x);
+ r.l.h = bswap_32 (x>>32);
+ return r.ll;
+}
+#define bswap_64(x) ByteSwap64(x)
+
#else
#define bswap_16(x) (((x) & 0x00ff) << 8 | ((x) & 0xff00) >> 8)
@@ -58,14 +87,19 @@
((((x) & 0xff000000) >> 24) | (((x) & 0x00ff0000) >> 8) | \
(((x) & 0x0000ff00) << 8) | (((x) & 0x000000ff) << 24))
-#define bswap_64(x) \
- (__extension__ \
- ({ union { __extension__ unsigned long long int __ll; \
- unsigned int __l[2]; } __w, __r; \
- __w.__ll = (x); \
- __r.__l[0] = bswap_32 (__w.__l[1]); \
- __r.__l[1] = bswap_32 (__w.__l[0]); \
- __r.__ll; }))
+static inline uint64_t ByteSwap64(uint64_t x)
+{
+ union {
+ uint64_t ll;
+ uint32_t l[2];
+ } w, r;
+ w.ll = x;
+ r.l[0] = bswap_32 (w.l[1]);
+ r.l[1] = bswap_32 (w.l[0]);
+ return r.ll;
+}
+#define bswap_64(x) ByteSwap64(x)
+
#endif /* !ARCH_X86 */
#endif /* !HAVE_BYTESWAP_H */
@@ -89,4 +123,4 @@
#define le2me_64(x) (x)
#endif
-#endif
+#endif /* __BSWAP_H__ */
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