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| author | dalecurtis@chromium.org <dalecurtis@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-08 21:30:37 +0000 |
|---|---|---|
| committer | dalecurtis@chromium.org <dalecurtis@chromium.org@0039d316-1c4b-4281-b951-d872f2087c98> | 2013-04-08 21:30:37 +0000 |
| commit | 7ed91e9093602872c62eba397fc1be8741089157 (patch) | |
| tree | 6c4c2c6878ed51ca2e90586f11ea3887835c5e8c /media/base/vector_math_testing.h | |
| parent | 13bfbc41308953ebea4952ff504037a261cfdd3c (diff) | |
| download | chromium_src-7ed91e9093602872c62eba397fc1be8741089157.zip chromium_src-7ed91e9093602872c62eba397fc1be8741089157.tar.gz chromium_src-7ed91e9093602872c62eba397fc1be8741089157.tar.bz2 | |
Add vector_math::FMUL. Replace audio_util::AdjustVolume.
Removes the integer based volume adjustment code from the
melting pot that is audio_util in favor of an
AudioBus::AdjustVolume() method which works on float.
The driver behind the method is a new vector_math::FMUL
method which is SSE optimized. Benchmarks put it in line
with the vector_math::FMAC() method.
Benchmarking 200000 iterations:
FMUL_C took 1962.52ms.
FMUL_SSE (unaligned size) took 493.03ms; which is 3.98x faster than FMUL_C.
FMUL_SSE (aligned size) took 491.79ms; which is 3.99x faster than FMUL_C and 1.00x faster than FMUL_SSE (unaligned size).
BUG=120319, 171540, 226447
TEST=new media_unittests.
Review URL: https://chromiumcodereview.appspot.com/13726011
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@192905 0039d316-1c4b-4281-b951-d872f2087c98
Diffstat (limited to 'media/base/vector_math_testing.h')
| -rw-r--r-- | media/base/vector_math_testing.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/media/base/vector_math_testing.h b/media/base/vector_math_testing.h index 503ca6a..1fecf4f 100644 --- a/media/base/vector_math_testing.h +++ b/media/base/vector_math_testing.h @@ -11,13 +11,15 @@ namespace media { namespace vector_math { -// Optimized versions of FMAC() function exposed for testing. See vector_math.h -// for details. +// Optimized versions exposed for testing. See vector_math.h for details. MEDIA_EXPORT void FMAC_C(const float src[], float scale, int len, float dest[]); +MEDIA_EXPORT void FMUL_C(const float src[], float scale, int len, float dest[]); #if defined(ARCH_CPU_X86_FAMILY) MEDIA_EXPORT void FMAC_SSE(const float src[], float scale, int len, float dest[]); +MEDIA_EXPORT void FMUL_SSE(const float src[], float scale, int len, + float dest[]); #endif } // namespace vector_math |