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2010-10-27 Chris Rogers <crogers@google.com>
Reviewed by Kenneth Russell.
Add VectorMath files
https://bugs.webkit.org/show_bug.cgi?id=48467
No new tests since audio API is not yet implemented.
* platform/audio/VectorMath.cpp: Added.
(WebCore::VectorMath::vsmul):
(WebCore::VectorMath::vadd):
* platform/audio/VectorMath.h: Added.
Canonical link: https://commits.webkit.org/61259@main
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@70743 268f45cc-cd09-0410-ab3c-d52691b4dbfc- Loading branch information
Chris Rogers
committed
Oct 28, 2010
1 parent
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commit 67805189e036fc419665e3f109e3db53db8bf816
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| @@ -0,0 +1,84 @@ | ||
| /* | ||
| * Copyright (C) 2010, Google Inc. All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY | ||
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY | ||
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
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| #include "config.h" | ||
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| #if ENABLE(WEB_AUDIO) | ||
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| #include "VectorMath.h" | ||
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| #if OS(DARWIN) | ||
| #include <Accelerate/Accelerate.h> | ||
| #endif | ||
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| namespace WebCore { | ||
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| namespace VectorMath { | ||
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| #if OS(DARWIN) | ||
| // On the Mac we use the highly optimized versions in Accelerate.framework | ||
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| void vsmul(const float* sourceP, int sourceStride, const float* scale, float* destP, int destStride, size_t framesToProcess) | ||
| { | ||
| vDSP_vsmul(sourceP, sourceStride, scale, destP, destStride, framesToProcess); | ||
| } | ||
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| void vadd(const float* source1P, int sourceStride1, const float* source2P, int sourceStride2, float* destP, int destStride, size_t framesToProcess) | ||
| { | ||
| vDSP_vadd(source1P, sourceStride1, source2P, sourceStride2, destP, destStride, framesToProcess); | ||
| } | ||
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| #else | ||
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| void vsmul(const float* sourceP, int sourceStride, const float* scale, float* destP, int destStride, size_t framesToProcess) | ||
| { | ||
| // FIXME: optimize for SSE | ||
| int n = framesToProcess; | ||
| float k = *scale; | ||
| while (n--) { | ||
| *destP = k * *sourceP; | ||
| sourceP += sourceStride; | ||
| destP += destStride; | ||
| } | ||
| } | ||
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| void vadd(const float* source1P, int sourceStride1, const float* source2P, int sourceStride2, float* destP, int destStride, size_t framesToProcess) | ||
| { | ||
| // FIXME: optimize for SSE | ||
| int n = framesToProcess; | ||
| while (n--) { | ||
| *destP = *source1P + *source2P; | ||
| source1P += sourceStride1; | ||
| source2P += sourceStride2; | ||
| destP += destStride; | ||
| } | ||
| } | ||
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| #endif // OS(DARWIN) | ||
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| } // namespace VectorMath | ||
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| } // namespace WebCore | ||
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| #endif // ENABLE(WEB_AUDIO) |
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| @@ -0,0 +1,41 @@ | ||
| /* | ||
| * Copyright (C) 2010, Google Inc. All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions | ||
| * are met: | ||
| * 1. Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * 2. Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in the | ||
| * documentation and/or other materials provided with the distribution. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY | ||
| * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED | ||
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | ||
| * DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY | ||
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | ||
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | ||
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | ||
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
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| #ifndef VectorMath_h | ||
| #define VectorMath_h | ||
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| // Defines the interface for several vector math functions whose implementation will ideally be optimized. | ||
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| namespace WebCore { | ||
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| namespace VectorMath { | ||
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| void vsmul(const float* sourceP, int sourceStride, const float* scale, float* destP, int destStride, size_t framesToProcess); | ||
| void vadd(const float* source1P, int sourceStride1, const float* source2P, int sourceStride2, float* destP, int destStride, size_t framesToProcess); | ||
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| } // namespace VectorMath | ||
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| } // namespace WebCore | ||
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| #endif // VectorMath_h |