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158 lines
3.5 KiB
158 lines
3.5 KiB
#ifndef _RRGENERICVECTOR_HPP
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#define _RRGENERICVECTOR_HPP
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/*-------------------------------------------------------------------------
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* drawElements Quality Program Reference Renderer
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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 Generic vetor
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*//*--------------------------------------------------------------------*/
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#include "rrDefs.hpp"
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#include "tcuVector.hpp"
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namespace rr
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{
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enum GenericVecType
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{
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GENERICVECTYPE_FLOAT = 0,
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GENERICVECTYPE_UINT32,
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GENERICVECTYPE_INT32,
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GENERICVECTYPE_LAST
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};
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/*--------------------------------------------------------------------*//*!
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* \brief Generic vertex attrib
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*
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* Generic vertex attributes hold 4 32-bit scalar values that can be accessed
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* as floating-point or integer values.
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*
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* Aliasing rules must be adhered when accessing data (ie. writing as float
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* and reading as int has undefined result).
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*//*--------------------------------------------------------------------*/
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class GenericVec4
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{
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private:
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union
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{
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deUint32 uData[4];
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deInt32 iData[4];
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float fData[4];
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} v;
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public:
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inline GenericVec4 (void)
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{
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v.iData[0] = 0;
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v.iData[1] = 0;
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v.iData[2] = 0;
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v.iData[3] = 0;
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}
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template<typename ScalarType>
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explicit GenericVec4 (const tcu::Vector<ScalarType, 4>& value)
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{
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*this = value;
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}
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inline GenericVec4 (const GenericVec4& other)
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{
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v.iData[0] = other.v.iData[0];
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v.iData[1] = other.v.iData[1];
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v.iData[2] = other.v.iData[2];
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v.iData[3] = other.v.iData[3];
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}
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GenericVec4& operator= (const GenericVec4& value)
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{
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v.iData[0] = value.v.iData[0];
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v.iData[1] = value.v.iData[1];
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v.iData[2] = value.v.iData[2];
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v.iData[3] = value.v.iData[3];
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return *this;
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}
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template<typename ScalarType>
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GenericVec4& operator= (const tcu::Vector<ScalarType, 4>& value)
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{
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getAccess<ScalarType>()[0] = value[0];
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getAccess<ScalarType>()[1] = value[1];
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getAccess<ScalarType>()[2] = value[2];
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getAccess<ScalarType>()[3] = value[3];
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return *this;
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}
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template<typename ScalarType>
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inline tcu::Vector<ScalarType, 4> get (void) const
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{
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return tcu::Vector<ScalarType, 4>(
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getAccess<ScalarType>()[0],
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getAccess<ScalarType>()[1],
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getAccess<ScalarType>()[2],
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getAccess<ScalarType>()[3]);
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}
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template<typename ScalarType>
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inline ScalarType* getAccess ();
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template<typename ScalarType>
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inline const ScalarType* getAccess () const;
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} DE_WARN_UNUSED_TYPE;
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template<>
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inline float* GenericVec4::getAccess<float> ()
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{
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return v.fData;
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}
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template<>
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inline const float* GenericVec4::getAccess<float> () const
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{
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return v.fData;
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}
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template<>
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inline deUint32* GenericVec4::getAccess<deUint32> ()
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{
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return v.uData;
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}
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template<>
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inline const deUint32* GenericVec4::getAccess<deUint32> () const
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{
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return v.uData;
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}
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template<>
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inline deInt32* GenericVec4::getAccess<deInt32> ()
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{
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return v.iData;
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}
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template<>
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inline const deInt32* GenericVec4::getAccess<deInt32> () const
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{
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return v.iData;
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}
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} // rr
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#endif // _RRGENERICVECTOR_HPP
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