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10/28/2024 06:50:42 AM
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Iex.h
2.34 KB
04/16/2016 12:51:59 AM
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IexBaseExc.h
9.06 KB
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IexErrnoExc.h
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IexExport.h
2.08 KB
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IexForward.h
5.1 KB
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IexMacros.h
5.63 KB
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IexMathExc.h
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IexMathFloatExc.h
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IexMathFpu.h
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IexMathIeeeExc.h
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IexNamespace.h
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IexThrowErrnoExc.h
3.4 KB
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IlmBaseConfig.h
1.64 KB
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IlmThread.h
4.78 KB
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IlmThreadExport.h
2.15 KB
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IlmThreadForward.h
2.08 KB
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IlmThreadMutex.h
4.32 KB
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IlmThreadNamespace.h
4.54 KB
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IlmThreadPool.h
5.21 KB
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IlmThreadSemaphore.h
3.38 KB
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ImathBox.h
16.62 KB
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ImathBoxAlgo.h
22.35 KB
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ImathColor.h
14.87 KB
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ImathColorAlgo.h
7.08 KB
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ImathEuler.h
22.88 KB
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ImathExc.h
2.82 KB
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ImathExport.h
2.13 KB
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ImathForward.h
2.68 KB
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ImathFrame.h
6.6 KB
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ImathFrustum.h
22.26 KB
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ImathFrustumTest.h
14.77 KB
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ImathFun.h
5.99 KB
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ImathGL.h
4.52 KB
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ImathGLU.h
2.17 KB
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ImathHalfLimits.h
2.47 KB
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ImathInt64.h
2.4 KB
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ImathInterval.h
5.34 KB
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ImathLimits.h
7.76 KB
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ImathLine.h
4.74 KB
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ImathLineAlgo.h
7.68 KB
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ImathMath.h
7.17 KB
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ImathMatrix.h
82.42 KB
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ImathMatrixAlgo.h
37.97 KB
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ImathNamespace.h
4.38 KB
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ImathPlane.h
6.75 KB
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ImathPlatform.h
3.23 KB
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ImathQuat.h
20.94 KB
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ImathRandom.h
9.84 KB
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ImathRoots.h
5.62 KB
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ImathShear.h
13.85 KB
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ImathSphere.h
4.68 KB
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ImathVec.h
44.17 KB
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ImathVecAlgo.h
4.64 KB
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ImfAcesFile.h
10.27 KB
11/16/2021 03:51:38 PM
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ImfArray.h
6.79 KB
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ImfAttribute.h
10.36 KB
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ImfB44Compressor.h
3.67 KB
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ImfBoxAttribute.h
3.1 KB
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ImfCRgbaFile.h
12.5 KB
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ImfChannelList.h
11.2 KB
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ImfChannelListAttribute.h
2.69 KB
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ImfChromaticities.h
4.45 KB
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ImfChromaticitiesAttribute.h
2.74 KB
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ImfCompositeDeepScanLine.h
5.38 KB
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ImfCompression.h
3.25 KB
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ImfCompressionAttribute.h
2.71 KB
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ImfConvert.h
3.39 KB
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ImfDeepCompositing.h
5.97 KB
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ImfDeepFrameBuffer.h
8.79 KB
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ImfDeepImageState.h
3.67 KB
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ImfDeepImageStateAttribute.h
2.64 KB
11/16/2021 03:51:38 PM
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ImfDeepScanLineInputFile.h
11.01 KB
11/16/2021 03:51:38 PM
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ImfDeepScanLineInputPart.h
6.9 KB
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ImfDeepScanLineOutputFile.h
9.37 KB
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ImfDeepScanLineOutputPart.h
6.41 KB
11/16/2021 03:51:38 PM
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ImfDeepTiledInputFile.h
16.08 KB
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ImfDeepTiledInputPart.h
13.27 KB
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ImfDeepTiledOutputFile.h
18.1 KB
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ImfDeepTiledOutputPart.h
14.83 KB
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ImfDoubleAttribute.h
2.29 KB
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ImfEnvmap.h
11.29 KB
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ImfEnvmapAttribute.h
2.67 KB
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ImfExport.h
2.11 KB
11/16/2021 03:51:38 PM
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ImfFloatAttribute.h
2.26 KB
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ImfForward.h
3.48 KB
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ImfFrameBuffer.h
11.18 KB
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ImfFramesPerSecond.h
3.79 KB
11/16/2021 03:51:38 PM
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ImfGenericInputFile.h
2.26 KB
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ImfGenericOutputFile.h
2.44 KB
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ImfHeader.h
19.27 KB
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ImfHuf.h
2.86 KB
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ImfIO.h
7.45 KB
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ImfInputFile.h
8.28 KB
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ImfInputPart.h
3.52 KB
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ImfInt64.h
2.24 KB
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ImfIntAttribute.h
2.27 KB
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ImfKeyCode.h
4.9 KB
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ImfKeyCodeAttribute.h
2.65 KB
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ImfLineOrder.h
2.42 KB
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ImfLineOrderAttribute.h
2.67 KB
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ImfLut.h
5.12 KB
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ImfMatrixAttribute.h
3.65 KB
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ImfMisc.h
16.33 KB
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ImfMultiPartInputFile.h
3.94 KB
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ImfMultiPartOutputFile.h
4.29 KB
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ImfMultiView.h
6.29 KB
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ImfName.h
3.52 KB
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ImfNamespace.h
4.46 KB
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ImfOpaqueAttribute.h
3.55 KB
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ImfOutputFile.h
9.66 KB
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ImfOutputPart.h
3.04 KB
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ImfPartHelper.h
7.66 KB
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ImfPartType.h
2.38 KB
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ImfPixelType.h
2.34 KB
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ImfPreviewImage.h
4.65 KB
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ImfPreviewImageAttribute.h
2.68 KB
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ImfRational.h
3.17 KB
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ImfRationalAttribute.h
2.63 KB
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ImfRgba.h
3.08 KB
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ImfRgbaFile.h
13.09 KB
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ImfRgbaYca.h
8.21 KB
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ImfStandardAttributes.h
13.26 KB
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ImfStringAttribute.h
2.58 KB
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ImfStringVectorAttribute.h
2.7 KB
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ImfTestFile.h
3.55 KB
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ImfThreading.h
4.24 KB
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ImfTileDescription.h
3.13 KB
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ImfTileDescriptionAttribute.h
2.7 KB
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ImfTiledInputFile.h
13.82 KB
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ImfTiledInputPart.h
4.55 KB
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ImfTiledOutputFile.h
17.83 KB
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ImfTiledOutputPart.h
4.75 KB
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ImfTiledRgbaFile.h
15.89 KB
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ImfTimeCode.h
7 KB
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ImfTimeCodeAttribute.h
2.64 KB
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ImfVecAttribute.h
4.45 KB
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ImfVersion.h
4.64 KB
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ImfWav.h
2.73 KB
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ImfXdr.h
18.74 KB
11/16/2021 03:51:38 PM
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OpenEXRConfig.h
1.8 KB
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half.h
17.22 KB
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halfExport.h
757 bytes
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halfFunction.h
4.83 KB
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halfLimits.h
3.73 KB
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Editing: halfFunction.h
Close
/////////////////////////////////////////////////////////////////////////// // // Copyright (c) 2002, Industrial Light & Magic, a division of Lucas // Digital Ltd. LLC // // All rights reserved. // // Redistribution and use in source and binary forms, with or without // modification, are permitted provided that the following conditions are // met: // * Redistributions of source code must retain the above copyright // notice, this list of conditions and the following disclaimer. // * 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. // * Neither the name of Industrial Light & Magic nor the names of // its contributors may be used to endorse or promote products derived // from this software without specific prior written permission. // // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT // OWNER OR 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. // /////////////////////////////////////////////////////////////////////////// // Primary authors: // Florian Kainz <kainz@ilm.com> // Rod Bogart <rgb@ilm.com> //--------------------------------------------------------------------------- // // halfFunction<T> -- a class for fast evaluation // of half --> T functions // // The constructor for a halfFunction object, // // halfFunction (function, // domainMin, domainMax, // defaultValue, // posInfValue, negInfValue, // nanValue); // // evaluates the function for all finite half values in the interval // [domainMin, domainMax], and stores the results in a lookup table. // For finite half values that are not in [domainMin, domainMax], the // constructor stores defaultValue in the table. For positive infinity, // negative infinity and NANs, posInfValue, negInfValue and nanValue // are stored in the table. // // The tabulated function can then be evaluated quickly for arbitrary // half values by calling the the halfFunction object's operator() // method. // // Example: // // #include <math.h> // #include <halfFunction.h> // // halfFunction<half> hsin (sin); // // halfFunction<half> hsqrt (sqrt, // function // 0, HALF_MAX, // domain // half::qNan(), // sqrt(x) for x < 0 // half::posInf(), // sqrt(+inf) // half::qNan(), // sqrt(-inf) // half::qNan()); // sqrt(nan) // // half x = hsin (1); // half y = hsqrt (3.5); // //--------------------------------------------------------------------------- #ifndef _HALF_FUNCTION_H_ #define _HALF_FUNCTION_H_ #include "half.h" #include "IlmBaseConfig.h" #ifndef ILMBASE_HAVE_LARGE_STACK #include <string.h> // need this for memset #else #endif #include <float.h> template <class T> class halfFunction { public: //------------ // Constructor //------------ template <class Function> halfFunction (Function f, half domainMin = -HALF_MAX, half domainMax = HALF_MAX, T defaultValue = 0, T posInfValue = 0, T negInfValue = 0, T nanValue = 0); #ifndef ILMBASE_HAVE_LARGE_STACK ~halfFunction () { delete [] _lut; } #endif //----------- // Evaluation //----------- T operator () (half x) const; private: #ifdef ILMBASE_HAVE_LARGE_STACK T _lut[1 << 16]; #else T * _lut; #endif }; //--------------- // Implementation //--------------- template <class T> template <class Function> halfFunction<T>::halfFunction (Function f, half domainMin, half domainMax, T defaultValue, T posInfValue, T negInfValue, T nanValue) { #ifndef ILMBASE_HAVE_LARGE_STACK _lut = new T[1<<16]; memset (_lut, 0 , (1<<16) * sizeof(T)); #endif for (int i = 0; i < (1 << 16); i++) { half x; x.setBits (i); if (x.isNan()) _lut[i] = nanValue; else if (x.isInfinity()) _lut[i] = x.isNegative()? negInfValue: posInfValue; else if (x < domainMin || x > domainMax) _lut[i] = defaultValue; else _lut[i] = f (x); } } template <class T> inline T halfFunction<T>::operator () (half x) const { return _lut[x.bits()]; } #endif