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authorMichael Niedermayer <michaelni@gmx.at>2014-09-03 13:11:55 +0200
committerMichael Niedermayer <michaelni@gmx.at>2014-09-03 13:13:29 +0200
commit34e80af860d6254250878d311a1aba183d0a5382 (patch)
tree1529da778c06f8b7ac1eece9a1bd0d0d5a5a7007
parente489e8346672cb8d4312d3458208ae626c5507b2 (diff)
parentc19a49e565bd06ea47947d50779ba236df9d4943 (diff)
downloadffmpeg-34e80af860d6254250878d311a1aba183d0a5382.tar.gz
Merge commit 'c19a49e565bd06ea47947d50779ba236df9d4943'
* commit 'c19a49e565bd06ea47947d50779ba236df9d4943': ppc: Support little endian intreadwrite Conflicts: libavutil/ppc/intreadwrite.h See: d37c620c84e28400ad071d1c75cc81445b4acb29 Merged-by: Michael Niedermayer <michaelni@gmx.at>
-rw-r--r--libavutil/ppc/intreadwrite.h72
1 files changed, 36 insertions, 36 deletions
diff --git a/libavutil/ppc/intreadwrite.h b/libavutil/ppc/intreadwrite.h
index 733c01e48f..1ec349eadd 100644
--- a/libavutil/ppc/intreadwrite.h
+++ b/libavutil/ppc/intreadwrite.h
@@ -24,70 +24,81 @@
#include <stdint.h>
#include "config.h"
+/*
+ * -O0 would compile the packed struct version, which is used by
+ * default, in an overly verbose fashion, so we override it here.
+ */
+#if HAVE_BIGENDIAN
+#define AV_RB64(p) (*(const uint64_t *)(p))
+#define AV_WB64(p, v) (*(uint64_t *)(p) = (v))
+
+#else
+#define AV_RL64(p) (*(const uint64_t *)(p))
+#define AV_WL64(p, v) (*(uint64_t *)(p) = (v))
+
+#endif
+
#if HAVE_XFORM_ASM
#if HAVE_BIGENDIAN
-#define AV_RL16 AV_RX16
-#define AV_WL16 AV_WX16
-#define AV_RL32 AV_RX32
-#define AV_WL32 AV_WX32
+#define AV_RL16 av_read_bswap16
+#define AV_WL16 av_write_bswap16
+#define AV_RL32 av_read_bswap32
+#define AV_WL32 av_write_bswap32
+#define AV_RL64 av_read_bswap64
+#define AV_WL64 av_write_bswap64
+
#else
-#define AV_RB16 AV_RX16
-#define AV_WB16 AV_WX16
-#define AV_RB32 AV_RX32
-#define AV_WB32 AV_WX32
+#define AV_RB16 av_read_bswap16
+#define AV_WB16 av_write_bswap16
+#define AV_RB32 av_read_bswap32
+#define AV_WB32 av_write_bswap32
+#define AV_RB64 av_read_bswap64
+#define AV_WB64 av_write_bswap64
+
#endif
-static av_always_inline uint16_t AV_RX16(const void *p)
+static av_always_inline uint16_t av_read_bswap16(const void *p)
{
uint16_t v;
__asm__ ("lhbrx %0, %y1" : "=r"(v) : "Z"(*(const uint16_t*)p));
return v;
}
-static av_always_inline void AV_WX16(void *p, uint16_t v)
+static av_always_inline void av_write_bswap16(void *p, uint16_t v)
{
__asm__ ("sthbrx %1, %y0" : "=Z"(*(uint16_t*)p) : "r"(v));
}
-static av_always_inline uint32_t AV_RX32(const void *p)
+static av_always_inline uint32_t av_read_bswap32(const void *p)
{
uint32_t v;
__asm__ ("lwbrx %0, %y1" : "=r"(v) : "Z"(*(const uint32_t*)p));
return v;
}
-static av_always_inline void AV_WX32(void *p, uint32_t v)
+static av_always_inline void av_write_bswap32(void *p, uint32_t v)
{
__asm__ ("stwbrx %1, %y0" : "=Z"(*(uint32_t*)p) : "r"(v));
}
#if HAVE_LDBRX
-#if HAVE_BIGENDIAN
-#define AV_RL64 AV_RX64
-#define AV_WL64 AV_WX64
-#else
-#define AV_RB64 AV_RX64
-#define AV_WB64 AV_WX64
-#endif
-
-static av_always_inline uint64_t AV_RX64(const void *p)
+static av_always_inline uint64_t av_read_bswap64(const void *p)
{
uint64_t v;
__asm__ ("ldbrx %0, %y1" : "=r"(v) : "Z"(*(const uint64_t*)p));
return v;
}
-static av_always_inline void AV_WX64(void *p, uint64_t v)
+static av_always_inline void av_write_bswap64(void *p, uint64_t v)
{
__asm__ ("stdbrx %1, %y0" : "=Z"(*(uint64_t*)p) : "r"(v));
}
#else
-#define AV_RL64 AV_RL64
-static av_always_inline uint64_t AV_RL64(const void *p)
+static av_always_inline uint64_t av_read_bswap64(const void *p)
{
union { uint64_t v; uint32_t hl[2]; } v;
__asm__ ("lwbrx %0, %y2 \n\t"
@@ -97,8 +108,7 @@ static av_always_inline uint64_t AV_RL64(const void *p)
return v.v;
}
-#define AV_WL64 AV_WL64
-static av_always_inline void AV_WL64(void *p, uint64_t v)
+static av_always_inline void av_write_bswap64(void *p, uint64_t v)
{
union { uint64_t v; uint32_t hl[2]; } vv = { v };
__asm__ ("stwbrx %2, %y0 \n\t"
@@ -111,14 +121,4 @@ static av_always_inline void AV_WL64(void *p, uint64_t v)
#endif /* HAVE_XFORM_ASM */
-/*
- * GCC fails miserably on the packed struct version which is used by
- * default, so we override it here.
- */
-
-#if HAVE_BIGENDIAN
-#define AV_RB64(p) (*(const uint64_t *)(p))
-#define AV_WB64(p, v) (*(uint64_t *)(p) = (v))
-#endif
-
#endif /* AVUTIL_PPC_INTREADWRITE_H */