From b8d10977f435ef7de6a90c8545a419192b8e83c6 Mon Sep 17 00:00:00 2001 From: Måns Rullgård Date: Thu, 11 May 2006 23:17:23 +0000 Subject: add unaligned16() and unaligned64() Originally committed as revision 5366 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/bitstream.h | 29 +++++++++++++++++++---------- 1 file changed, 19 insertions(+), 10 deletions(-) (limited to 'libavcodec') diff --git a/libavcodec/bitstream.h b/libavcodec/bitstream.h index b425049900..195bcc7a18 100644 --- a/libavcodec/bitstream.h +++ b/libavcodec/bitstream.h @@ -141,25 +141,34 @@ typedef struct RL_VLC_ELEM { /* used to avoid missaligned exceptions on some archs (alpha, ...) */ #if defined(ARCH_X86) || defined(ARCH_X86_64) +# define unaligned16(a) (*(const uint16_t*)(a)) # define unaligned32(a) (*(const uint32_t*)(a)) +# define unaligned64(a) (*(const uint64_t*)(a)) #else # ifdef __GNUC__ -static inline uint32_t unaligned32(const void *v) { - struct Unaligned { - uint32_t i; - } __attribute__((packed)); - - return ((const struct Unaligned *) v)->i; +# define unaligned(x) \ +static inline uint##x##_t unaligned##x(const void *v) { \ + struct Unaligned { \ + uint##x##_t i; \ + } __attribute__((packed)); \ + \ + return ((const struct Unaligned *) v)->i; \ } # elif defined(__DECC) -static inline uint32_t unaligned32(const void *v) { - return *(const __unaligned uint32_t *) v; +# define unaligned(x) \ +static inline uint##x##_t unaligned##x##(const void *v) { \ + return *(const __unaligned uint##x##_t *) v; \ } # else -static inline uint32_t unaligned32(const void *v) { - return *(const uint32_t *) v; +# define unaligned(x) \ +static inline uint##x##_t unaligned##x##(const void *v) { \ + return *(const uint##x##_t *) v; \ } # endif +unaligned(16) +unaligned(32) +unaligned(64) +#undef unaligned #endif //!ARCH_X86 #ifndef ALT_BITSTREAM_WRITER -- cgit v1.2.3