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author | Torne (Richard Coles) <torne@google.com> | 2013-03-28 15:31:22 +0000 |
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committer | Torne (Richard Coles) <torne@google.com> | 2013-03-28 15:31:22 +0000 |
commit | 2a99a7e74a7f215066514fe81d2bfa6639d9eddd (patch) | |
tree | 7c2d04841fcd599fd83b0f0bb1100e1c89a35bae /media/base/vector_math.cc | |
parent | 61c449bbbb53310a8c041d8cefdd6b01a126cc7e (diff) | |
download | chromium_org-2a99a7e74a7f215066514fe81d2bfa6639d9eddd.tar.gz |
Merge from Chromium at DEPS revision r190564
This commit was generated by merge_to_master.py.
Change-Id: Icadecbce29854b8fa25fd335b2c1949b5ca5d170
Diffstat (limited to 'media/base/vector_math.cc')
-rw-r--r-- | media/base/vector_math.cc | 26 |
1 files changed, 5 insertions, 21 deletions
diff --git a/media/base/vector_math.cc b/media/base/vector_math.cc index edd95cd5e9..96f94d95e4 100644 --- a/media/base/vector_math.cc +++ b/media/base/vector_math.cc @@ -7,11 +7,6 @@ #include "base/cpu.h" #include "base/logging.h" -#include "build/build_config.h" - -#if defined(ARCH_CPU_X86_FAMILY) && defined(__SSE__) -#include <xmmintrin.h> -#endif namespace media { namespace vector_math { @@ -25,9 +20,13 @@ void FMAC(const float src[], float scale, int len, float dest[]) { // selection thread safe. typedef void (*VectorFMACProc)(const float src[], float scale, int len, float dest[]); -#if defined(ARCH_CPU_X86_FAMILY) && defined(__SSE__) +#if defined(ARCH_CPU_X86_FAMILY) +#if defined(__SSE__) + static const VectorFMACProc kVectorFMACProc = FMAC_SSE; +#else static const VectorFMACProc kVectorFMACProc = base::CPU().has_sse() ? FMAC_SSE : FMAC_C; +#endif #else static const VectorFMACProc kVectorFMACProc = FMAC_C; #endif @@ -40,20 +39,5 @@ void FMAC_C(const float src[], float scale, int len, float dest[]) { dest[i] += src[i] * scale; } -#if defined(ARCH_CPU_X86_FAMILY) && defined(__SSE__) -void FMAC_SSE(const float src[], float scale, int len, float dest[]) { - __m128 m_scale = _mm_set_ps1(scale); - int rem = len % 4; - for (int i = 0; i < len - rem; i += 4) { - _mm_store_ps(dest + i, _mm_add_ps(_mm_load_ps(dest + i), - _mm_mul_ps(_mm_load_ps(src + i), m_scale))); - } - - // Handle any remaining values that wouldn't fit in an SSE pass. - if (rem) - FMAC_C(src + len - rem, scale, rem, dest + len - rem); -} -#endif - } // namespace vector_math } // namespace media |