#ifndef _TCUTEXVERIFIERUTIL_HPP
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#define _TCUTEXVERIFIERUTIL_HPP
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/*-------------------------------------------------------------------------
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* drawElements Quality Program Tester Core
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* ----------------------------------------
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*
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* Copyright 2014 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*//*!
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* \file
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* \brief Internal utilities shared between TexLookup and TexCompare verifiers.
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*//*--------------------------------------------------------------------*/
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#include "tcuDefs.hpp"
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#include "tcuTexture.hpp"
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namespace tcu
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{
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namespace TexVerifierUtil
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{
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// Error bound utilities
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float computeFloatingPointError (const float value, const int numAccurateBits);
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float computeFixedPointError (const int numAccurateBits);
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template<int Size>
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inline Vector<float, Size> computeFloatingPointError (const Vector<float, Size>& value, const Vector<deInt32, Size>& numAccurateBits)
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{
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Vector<float, Size> res;
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for (int ndx = 0; ndx < Size; ndx++)
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res[ndx] = computeFloatingPointError(value[ndx], numAccurateBits[ndx]);
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return res;
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}
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template<int Size>
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inline Vector<float, Size> computeFixedPointError (const Vector<deInt32, Size>& numAccurateBits)
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{
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Vector<float, Size> res;
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for (int ndx = 0; ndx < Size; ndx++)
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res[ndx] = computeFixedPointError(numAccurateBits[ndx]);
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return res;
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}
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// Sampler introspection
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inline bool isNearestMipmapFilter (const Sampler::FilterMode mode)
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{
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return mode == Sampler::NEAREST_MIPMAP_NEAREST || mode == Sampler::LINEAR_MIPMAP_NEAREST;
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}
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inline bool isLinearMipmapFilter (const Sampler::FilterMode mode)
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{
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return mode == Sampler::NEAREST_MIPMAP_LINEAR || mode == Sampler::LINEAR_MIPMAP_LINEAR;
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}
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inline bool isMipmapFilter (const Sampler::FilterMode mode)
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{
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return isNearestMipmapFilter(mode) || isLinearMipmapFilter(mode);
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}
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inline bool isLinearFilter (const Sampler::FilterMode mode)
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{
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return mode == Sampler::LINEAR || mode == Sampler::LINEAR_MIPMAP_NEAREST || mode == Sampler::LINEAR_MIPMAP_LINEAR;
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}
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inline bool isNearestFilter (const Sampler::FilterMode mode)
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{
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return !isLinearFilter(mode);
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}
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inline Sampler::FilterMode getLevelFilter (const Sampler::FilterMode mode)
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{
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return isLinearFilter(mode) ? Sampler::LINEAR : Sampler::NEAREST;
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}
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inline bool isWrapModeSupported (const Sampler::WrapMode mode)
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{
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return mode != Sampler::MIRRORED_REPEAT_CL && mode != Sampler::REPEAT_CL;
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}
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// Misc utilities
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Vec2 computeNonNormalizedCoordBounds (const bool normalizedCoords, const int dim, const float coord, const int coordBits, const int uvBits);
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void getPossibleCubeFaces (const Vec3& coord, const IVec3& bits, CubeFace* faces, int& numFaces);
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Sampler getUnnormalizedCoordSampler (const Sampler& sampler);
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int wrap (Sampler::WrapMode mode, int c, int size);
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} // TexVerifierUtil
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} // tcu
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#endif // _TCUTEXVERIFIERUTIL_HPP
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