647 lines
24 KiB
C++
647 lines
24 KiB
C++
///////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 2012, Autodesk, Inc.
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//
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// All rights reserved.
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//
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// Implementation of IIF-specific file format and speed optimizations
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// provided by Innobec Technologies inc on behalf of Autodesk.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Industrial Light & Magic nor the names of
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// its contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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///////////////////////////////////////////////////////////////////////////
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#pragma once
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#ifndef INCLUDED_IMF_OPTIMIZED_PIXEL_READING_H
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#define INCLUDED_IMF_OPTIMIZED_PIXEL_READING_H
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#include "ImfSimd.h"
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#include "ImfSystemSpecific.h"
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#include <iostream>
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#include "ImfChannelList.h"
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#include "ImfFrameBuffer.h"
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#include "ImfStringVectorAttribute.h"
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OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_ENTER
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class OptimizationMode
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{
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public:
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bool _optimizable;
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int _ySampling;
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OptimizationMode() : _optimizable(false) {}
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};
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#ifdef IMF_HAVE_SSE2
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//------------------------------------------------------------------------
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// Test for SSE pointer alignemnt
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//------------------------------------------------------------------------
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EXR_FORCEINLINE
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bool
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isPointerSSEAligned (const void* EXR_RESTRICT pPointer)
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{
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uintptr_t trailingBits = ((uintptr_t)pPointer) & 15;
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return trailingBits == 0;
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}
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//------------------------------------------------------------------------
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// Load SSE from address into register
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//------------------------------------------------------------------------
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template<bool IS_ALIGNED>
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EXR_FORCEINLINE
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__m128i loadSSE (__m128i*& loadAddress)
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{
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// throw exception :: this is not accepted
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return _mm_loadu_si128 (loadAddress);
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}
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template<>
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EXR_FORCEINLINE
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__m128i loadSSE<false> (__m128i*& loadAddress)
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{
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return _mm_loadu_si128 (loadAddress);
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}
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template<>
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EXR_FORCEINLINE
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__m128i loadSSE<true> (__m128i*& loadAddress)
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{
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return _mm_load_si128 (loadAddress);
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}
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//------------------------------------------------------------------------
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// Store SSE from register into address
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//------------------------------------------------------------------------
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template<bool IS_ALIGNED>
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EXR_FORCEINLINE
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void storeSSE (__m128i*& storeAddress, __m128i& dataToStore)
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{
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}
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template<>
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EXR_FORCEINLINE
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void
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storeSSE<false> (__m128i*& storeAddress, __m128i& dataToStore)
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{
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_mm_storeu_si128 (storeAddress, dataToStore);
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}
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template<>
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EXR_FORCEINLINE
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void
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storeSSE<true> (__m128i*& storeAddress, __m128i& dataToStore)
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{
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_mm_stream_si128 (storeAddress, dataToStore);
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}
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//------------------------------------------------------------------------
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//
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// Write to RGBA
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//
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//------------------------------------------------------------------------
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//
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// Using SSE intrinsics
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//
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template<bool READ_PTR_ALIGNED, bool WRITE_PTR_ALIGNED>
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EXR_FORCEINLINE
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void writeToRGBASSETemplate
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(__m128i*& readPtrSSERed,
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__m128i*& readPtrSSEGreen,
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__m128i*& readPtrSSEBlue,
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__m128i*& readPtrSSEAlpha,
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__m128i*& writePtrSSE,
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const size_t& lPixelsToCopySSE)
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{
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for (size_t i = 0; i < lPixelsToCopySSE; ++i)
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{
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__m128i redRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSERed);
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__m128i greenRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSEGreen);
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__m128i blueRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSEBlue);
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__m128i alphaRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSEAlpha);
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__m128i redGreenRegister = _mm_unpacklo_epi16 (redRegister,
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greenRegister);
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__m128i blueAlphaRegister = _mm_unpacklo_epi16 (blueRegister,
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alphaRegister);
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__m128i pixel12Register = _mm_unpacklo_epi32 (redGreenRegister,
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blueAlphaRegister);
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__m128i pixel34Register = _mm_unpackhi_epi32 (redGreenRegister,
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blueAlphaRegister);
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel12Register);
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++writePtrSSE;
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel34Register);
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++writePtrSSE;
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redGreenRegister = _mm_unpackhi_epi16 (redRegister, greenRegister);
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blueAlphaRegister = _mm_unpackhi_epi16 (blueRegister, alphaRegister);
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pixel12Register = _mm_unpacklo_epi32 (redGreenRegister,
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blueAlphaRegister);
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pixel34Register = _mm_unpackhi_epi32 (redGreenRegister,
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blueAlphaRegister);
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel12Register);
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++writePtrSSE;
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel34Register);
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++writePtrSSE;
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++readPtrSSEAlpha;
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++readPtrSSEBlue;
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++readPtrSSEGreen;
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++readPtrSSERed;
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}
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}
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//
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// Not using SSE intrinsics. This is still faster than the alternative
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// because we have multiple read pointers and therefore we are able to
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// take advantage of data locality for write operations.
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//
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EXR_FORCEINLINE
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void writeToRGBANormal (unsigned short*& readPtrRed,
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unsigned short*& readPtrGreen,
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unsigned short*& readPtrBlue,
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unsigned short*& readPtrAlpha,
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unsigned short*& writePtr,
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const size_t& lPixelsToCopy)
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{
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for (size_t i = 0; i < lPixelsToCopy; ++i)
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{
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*(writePtr++) = *(readPtrRed++);
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*(writePtr++) = *(readPtrGreen++);
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*(writePtr++) = *(readPtrBlue++);
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*(writePtr++) = *(readPtrAlpha++);
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}
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}
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//
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// Determine which (template) version to use by checking whether pointers
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// are aligned
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//
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EXR_FORCEINLINE
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void optimizedWriteToRGBA (unsigned short*& readPtrRed,
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unsigned short*& readPtrGreen,
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unsigned short*& readPtrBlue,
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unsigned short*& readPtrAlpha,
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unsigned short*& writePtr,
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const size_t& pixelsToCopySSE,
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const size_t& pixelsToCopyNormal)
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{
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bool readPtrAreAligned = true;
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readPtrAreAligned &= isPointerSSEAligned(readPtrRed);
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readPtrAreAligned &= isPointerSSEAligned(readPtrGreen);
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readPtrAreAligned &= isPointerSSEAligned(readPtrBlue);
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readPtrAreAligned &= isPointerSSEAligned(readPtrAlpha);
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bool writePtrIsAligned = isPointerSSEAligned(writePtr);
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if (!readPtrAreAligned && !writePtrIsAligned)
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{
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writeToRGBASSETemplate<false, false> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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(__m128i*&)readPtrAlpha,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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else if (!readPtrAreAligned && writePtrIsAligned)
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{
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writeToRGBASSETemplate<false, true> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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(__m128i*&)readPtrAlpha,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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else if (readPtrAreAligned && !writePtrIsAligned)
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{
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writeToRGBASSETemplate<true, false> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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(__m128i*&)readPtrAlpha,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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else if(readPtrAreAligned && writePtrIsAligned)
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{
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writeToRGBASSETemplate<true, true> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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(__m128i*&)readPtrAlpha,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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writeToRGBANormal (readPtrRed, readPtrGreen, readPtrBlue, readPtrAlpha,
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writePtr, pixelsToCopyNormal);
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}
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//------------------------------------------------------------------------
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//
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// Write to RGBA Fill A
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//
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//------------------------------------------------------------------------
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//
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// Using SSE intrinsics
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//
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template<bool READ_PTR_ALIGNED, bool WRITE_PTR_ALIGNED>
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EXR_FORCEINLINE
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void
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writeToRGBAFillASSETemplate (__m128i*& readPtrSSERed,
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__m128i*& readPtrSSEGreen,
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__m128i*& readPtrSSEBlue,
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const unsigned short& alphaFillValue,
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__m128i*& writePtrSSE,
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const size_t& pixelsToCopySSE)
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{
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const __m128i dummyAlphaRegister = _mm_set_epi16 (alphaFillValue,
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alphaFillValue,
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alphaFillValue,
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alphaFillValue,
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alphaFillValue,
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alphaFillValue,
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alphaFillValue,
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alphaFillValue);
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for (size_t pixelCounter = 0; pixelCounter < pixelsToCopySSE; ++pixelCounter)
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{
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__m128i redRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSERed);
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__m128i greenRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSEGreen);
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__m128i blueRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSEBlue);
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__m128i redGreenRegister = _mm_unpacklo_epi16 (redRegister,
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greenRegister);
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__m128i blueAlphaRegister = _mm_unpacklo_epi16 (blueRegister,
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dummyAlphaRegister);
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__m128i pixel12Register = _mm_unpacklo_epi32 (redGreenRegister,
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blueAlphaRegister);
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__m128i pixel34Register = _mm_unpackhi_epi32 (redGreenRegister,
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blueAlphaRegister);
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel12Register);
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++writePtrSSE;
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel34Register);
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++writePtrSSE;
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redGreenRegister = _mm_unpackhi_epi16 (redRegister,
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greenRegister);
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blueAlphaRegister = _mm_unpackhi_epi16 (blueRegister,
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dummyAlphaRegister);
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pixel12Register = _mm_unpacklo_epi32 (redGreenRegister,
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blueAlphaRegister);
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pixel34Register = _mm_unpackhi_epi32 (redGreenRegister,
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blueAlphaRegister);
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel12Register);
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++writePtrSSE;
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, pixel34Register);
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++writePtrSSE;
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++readPtrSSEBlue;
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++readPtrSSEGreen;
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++readPtrSSERed;
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}
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}
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//
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// Not using SSE intrinsics. This is still faster than the alternative
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// because we have multiple read pointers and therefore we are able to
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// take advantage of data locality for write operations.
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//
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EXR_FORCEINLINE
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void
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writeToRGBAFillANormal (unsigned short*& readPtrRed,
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unsigned short*& readPtrGreen,
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unsigned short*& readPtrBlue,
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const unsigned short& alphaFillValue,
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unsigned short*& writePtr,
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const size_t& pixelsToCopy)
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{
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for (size_t i = 0; i < pixelsToCopy; ++i)
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{
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*(writePtr++) = *(readPtrRed++);
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*(writePtr++) = *(readPtrGreen++);
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*(writePtr++) = *(readPtrBlue++);
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*(writePtr++) = alphaFillValue;
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}
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}
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//
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// Determine which (template) version to use by checking whether pointers
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// are aligned.
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//
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EXR_FORCEINLINE
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void
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optimizedWriteToRGBAFillA (unsigned short*& readPtrRed,
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unsigned short*& readPtrGreen,
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unsigned short*& readPtrBlue,
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const unsigned short& alphaFillValue,
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unsigned short*& writePtr,
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const size_t& pixelsToCopySSE,
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const size_t& pixelsToCopyNormal)
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{
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bool readPtrAreAligned = true;
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readPtrAreAligned &= isPointerSSEAligned (readPtrRed);
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readPtrAreAligned &= isPointerSSEAligned (readPtrGreen);
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readPtrAreAligned &= isPointerSSEAligned (readPtrBlue);
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bool writePtrIsAligned = isPointerSSEAligned (writePtr);
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if (!readPtrAreAligned && !writePtrIsAligned)
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{
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writeToRGBAFillASSETemplate<false, false> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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alphaFillValue,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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else if (!readPtrAreAligned && writePtrIsAligned)
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{
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writeToRGBAFillASSETemplate<false, true> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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alphaFillValue,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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else if (readPtrAreAligned && !writePtrIsAligned)
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{
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writeToRGBAFillASSETemplate<true, false> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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alphaFillValue,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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else if (readPtrAreAligned && writePtrIsAligned)
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{
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writeToRGBAFillASSETemplate<true, true> ((__m128i*&)readPtrRed,
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(__m128i*&)readPtrGreen,
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(__m128i*&)readPtrBlue,
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alphaFillValue,
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(__m128i*&)writePtr,
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pixelsToCopySSE);
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}
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writeToRGBAFillANormal (readPtrRed,
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readPtrGreen, readPtrBlue, alphaFillValue,
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writePtr, pixelsToCopyNormal);
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}
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//------------------------------------------------------------------------
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//
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// Write to RGB
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//
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//------------------------------------------------------------------------
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//
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// Using SSE intrinsics
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//
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template<bool READ_PTR_ALIGNED, bool WRITE_PTR_ALIGNED>
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EXR_FORCEINLINE
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void
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writeToRGBSSETemplate (__m128i*& readPtrSSERed,
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__m128i*& readPtrSSEGreen,
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__m128i*& readPtrSSEBlue,
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__m128i*& writePtrSSE,
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const size_t& pixelsToCopySSE)
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{
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for (size_t pixelCounter = 0; pixelCounter < pixelsToCopySSE; ++pixelCounter)
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{
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//
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// Need to shuffle and unpack pointers to obtain my first register
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// We must save 8 pixels at a time, so we must have the following three registers at the end:
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// 1) R1 G1 B1 R2 G2 B2 R3 G3
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// 2) B3 R4 G4 B4 R5 G5 B5 R6
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// 3) G6 B6 R7 G7 B7 R8 G8 B8
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//
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__m128i redRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSERed);
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__m128i greenRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSEGreen);
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__m128i blueRegister = loadSSE<READ_PTR_ALIGNED> (readPtrSSEBlue);
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//
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// First register: R1 G1 B1 R2 G2 B2 R3 G3
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// Construct 2 registers and then unpack them to obtain our final result:
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//
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__m128i redGreenRegister = _mm_unpacklo_epi16 (redRegister,
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greenRegister);
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__m128i redBlueRegister = _mm_unpacklo_epi16 (redRegister,
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blueRegister);
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__m128i greenBlueRegister = _mm_unpacklo_epi16 (greenRegister,
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blueRegister);
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// Left Part (R1 G1 B1 R2)
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__m128i quarterRight = _mm_shufflelo_epi16 (redBlueRegister,
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_MM_SHUFFLE(3,0,2,1));
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__m128i halfLeft = _mm_unpacklo_epi32 (redGreenRegister,
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quarterRight);
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// Right Part (G2 B2 R3 G3)
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__m128i quarterLeft = _mm_shuffle_epi32 (greenBlueRegister,
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_MM_SHUFFLE(3,2,0,1));
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quarterRight = _mm_shuffle_epi32 (redGreenRegister,
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_MM_SHUFFLE(3,0,1,2));
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__m128i halfRight = _mm_unpacklo_epi32 (quarterLeft, quarterRight);
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__m128i fullRegister = _mm_unpacklo_epi64 (halfLeft, halfRight);
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storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, fullRegister);
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++writePtrSSE;
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//
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// Second register: B3 R4 G4 B4 R5 G5 B5 R6
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//
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// Left Part (B3, R4, G4, B4)
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quarterLeft = _mm_shufflehi_epi16 (redBlueRegister,
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_MM_SHUFFLE(0, 3, 2, 1));
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quarterRight = _mm_shufflehi_epi16 (greenBlueRegister,
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_MM_SHUFFLE(1, 0, 3, 2));
|
|
halfLeft = _mm_unpackhi_epi32 (quarterLeft, quarterRight);
|
|
|
|
// Update the registers
|
|
redGreenRegister = _mm_unpackhi_epi16 (redRegister, greenRegister);
|
|
redBlueRegister = _mm_unpackhi_epi16 (redRegister, blueRegister);
|
|
greenBlueRegister = _mm_unpackhi_epi16 (greenRegister, blueRegister);
|
|
|
|
// Right Part (R5 G5 B5 R6)
|
|
quarterRight = _mm_shufflelo_epi16 (redBlueRegister,
|
|
_MM_SHUFFLE(3,0,2,1));
|
|
halfRight = _mm_unpacklo_epi32 (redGreenRegister, quarterRight);
|
|
|
|
fullRegister = _mm_unpacklo_epi64 (halfLeft, halfRight);
|
|
storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, fullRegister);
|
|
++writePtrSSE;
|
|
|
|
//
|
|
// Third register: G6 B6 R7 G7 B7 R8 G8 B8
|
|
//
|
|
|
|
// Left part (G6 B6 R7 G7)
|
|
quarterLeft = _mm_shuffle_epi32 (greenBlueRegister,
|
|
_MM_SHUFFLE(3,2,0,1));
|
|
quarterRight = _mm_shuffle_epi32 (redGreenRegister,
|
|
_MM_SHUFFLE(3,0,1,2));
|
|
halfLeft = _mm_unpacklo_epi32 (quarterLeft, quarterRight);
|
|
|
|
// Right part (B7 R8 G8 B8)
|
|
quarterLeft = _mm_shufflehi_epi16 (redBlueRegister,
|
|
_MM_SHUFFLE(0, 3, 2, 1));
|
|
quarterRight = _mm_shufflehi_epi16 (greenBlueRegister,
|
|
_MM_SHUFFLE(1, 0, 3, 2));
|
|
halfRight = _mm_unpackhi_epi32 (quarterLeft, quarterRight);
|
|
|
|
fullRegister = _mm_unpacklo_epi64 (halfLeft, halfRight);
|
|
storeSSE<WRITE_PTR_ALIGNED> (writePtrSSE, fullRegister);
|
|
++writePtrSSE;
|
|
|
|
//
|
|
// Increment read pointers
|
|
//
|
|
++readPtrSSEBlue;
|
|
++readPtrSSEGreen;
|
|
++readPtrSSERed;
|
|
}
|
|
}
|
|
|
|
//
|
|
// Not using SSE intrinsics. This is still faster than the alternative
|
|
// because we have multiple read pointers and therefore we are able to
|
|
// take advantage of data locality for write operations.
|
|
//
|
|
EXR_FORCEINLINE
|
|
void
|
|
writeToRGBNormal (unsigned short*& readPtrRed,
|
|
unsigned short*& readPtrGreen,
|
|
unsigned short*& readPtrBlue,
|
|
unsigned short*& writePtr,
|
|
const size_t& pixelsToCopy)
|
|
{
|
|
for (size_t i = 0; i < pixelsToCopy; ++i)
|
|
{
|
|
*(writePtr++) = *(readPtrRed++);
|
|
*(writePtr++) = *(readPtrGreen++);
|
|
*(writePtr++) = *(readPtrBlue++);
|
|
}
|
|
}
|
|
|
|
//
|
|
// Determine which (template) version to use by checking whether pointers
|
|
// are aligned
|
|
//
|
|
EXR_FORCEINLINE
|
|
void optimizedWriteToRGB (unsigned short*& readPtrRed,
|
|
unsigned short*& readPtrGreen,
|
|
unsigned short*& readPtrBlue,
|
|
unsigned short*& writePtr,
|
|
const size_t& pixelsToCopySSE,
|
|
const size_t& pixelsToCopyNormal)
|
|
{
|
|
bool readPtrAreAligned = true;
|
|
|
|
readPtrAreAligned &= isPointerSSEAligned(readPtrRed);
|
|
readPtrAreAligned &= isPointerSSEAligned(readPtrGreen);
|
|
readPtrAreAligned &= isPointerSSEAligned(readPtrBlue);
|
|
|
|
bool writePtrIsAligned = isPointerSSEAligned(writePtr);
|
|
|
|
if (!readPtrAreAligned && !writePtrIsAligned)
|
|
{
|
|
writeToRGBSSETemplate<false, false> ((__m128i*&)readPtrRed,
|
|
(__m128i*&)readPtrGreen,
|
|
(__m128i*&)readPtrBlue,
|
|
(__m128i*&)writePtr,
|
|
pixelsToCopySSE);
|
|
}
|
|
else if (!readPtrAreAligned && writePtrIsAligned)
|
|
{
|
|
writeToRGBSSETemplate<false, true> ((__m128i*&)readPtrRed,
|
|
(__m128i*&)readPtrGreen,
|
|
(__m128i*&)readPtrBlue,
|
|
(__m128i*&)writePtr,
|
|
pixelsToCopySSE);
|
|
}
|
|
else if (readPtrAreAligned && !writePtrIsAligned)
|
|
{
|
|
writeToRGBSSETemplate<true, false> ((__m128i*&)readPtrRed,
|
|
(__m128i*&)readPtrGreen,
|
|
(__m128i*&)readPtrBlue,
|
|
(__m128i*&)writePtr,
|
|
pixelsToCopySSE);
|
|
}
|
|
else if (readPtrAreAligned && writePtrIsAligned)
|
|
{
|
|
writeToRGBSSETemplate<true, true> ((__m128i*&)readPtrRed,
|
|
(__m128i*&)readPtrGreen,
|
|
(__m128i*&)readPtrBlue,
|
|
(__m128i*&)writePtr,
|
|
pixelsToCopySSE);
|
|
}
|
|
|
|
|
|
writeToRGBNormal (readPtrRed, readPtrGreen, readPtrBlue,
|
|
writePtr, pixelsToCopyNormal);
|
|
}
|
|
|
|
|
|
|
|
|
|
#else // ! defined IMF_HAVE_SSE2
|
|
|
|
#endif // defined IMF_HAVE_SSE2
|
|
|
|
|
|
OPENEXR_IMF_INTERNAL_NAMESPACE_HEADER_EXIT
|
|
|
|
#endif
|