From f0e0737922061f0eb38d5016c40d86226ee40e61 Mon Sep 17 00:00:00 2001 From: Tom Stellard Date: Fri, 18 Jul 2014 15:55:08 -0400 Subject: [PATCH] util: Add util_memcpy_cpu_to_le32() v3 MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit v2: - Preserve word boundaries. v3: - Use const and restrict. - Fix indentation. Reviewed-by: Michel Dänzer --- src/gallium/auxiliary/util/u_math.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/gallium/auxiliary/util/u_math.h b/src/gallium/auxiliary/util/u_math.h index b9ed197d72d..f6dcb228fa5 100644 --- a/src/gallium/auxiliary/util/u_math.h +++ b/src/gallium/auxiliary/util/u_math.h @@ -812,6 +812,23 @@ util_bswap16(uint16_t n) (n << 8); } +static INLINE void* +util_memcpy_cpu_to_le32(void * restrict dest, const void * restrict src, size_t n) +{ +#ifdef PIPE_ARCH_BIG_ENDIAN + size_t i, e; + asset(n % 4 == 0); + + for (i = 0, e = n / 4; i < e; i++) { + uint32_t * restrict d = (uint32_t* restrict)dest; + const uint32_t * restrict s = (const uint32_t* restrict)src; + d[i] = util_bswap32(s[i]); + } + return dest; +#else + return memcpy(dest, src, n); +#endif +} /** * Clamp X to [MIN, MAX]. -- 2.30.2