180 lines
5.1 KiB
C++
180 lines
5.1 KiB
C++
#ifndef _GLSSTATEQUERYUTIL_HPP
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#define _GLSSTATEQUERYUTIL_HPP
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/*-------------------------------------------------------------------------
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* drawElements Quality Program OpenGL (ES) Module
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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 State Query test utils.
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*//*--------------------------------------------------------------------*/
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#include "deMath.h"
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#include "tcuDefs.hpp"
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#include "tcuTestLog.hpp"
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namespace deqp
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{
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namespace gls
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{
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namespace StateQueryUtil
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{
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/*--------------------------------------------------------------------*//*!
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* \brief Rounds given float to the nearest integer (half up).
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*
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* Returns the nearest integer for a float argument. In the case that there
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* are two nearest integers at the equal distance (aka. the argument is of
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* form x.5), the integer with the higher value is chosen. (x.5 rounds to x+1)
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*//*--------------------------------------------------------------------*/
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template <typename T>
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T roundGLfloatToNearestIntegerHalfUp (float val)
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{
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return (T)(deFloatFloor(val + 0.5f));
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}
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/*--------------------------------------------------------------------*//*!
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* \brief Rounds given float to the nearest integer (half down).
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*
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* Returns the nearest integer for a float argument. In the case that there
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* are two nearest integers at the equal distance (aka. the argument is of
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* form x.5), the integer with the higher value is chosen. (x.5 rounds to x)
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*//*--------------------------------------------------------------------*/
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template <typename T>
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T roundGLfloatToNearestIntegerHalfDown (float val)
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{
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return (T)(deFloatCeil(val - 0.5f));
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}
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template <typename T>
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class StateQueryMemoryWriteGuard
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{
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public:
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StateQueryMemoryWriteGuard (void);
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operator T& (void);
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T* operator & (void);
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bool isUndefined (void) const;
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bool isMemoryContaminated (void) const;
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bool verifyValidity (tcu::TestContext& testCtx) const;
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const T& get (void) const { return m_value; }
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private:
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enum
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{
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GUARD_VALUE = 0xDEDEADCD
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};
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enum
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{
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WRITE_GUARD_VALUE = 0xDE
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};
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deInt32 m_preguard;
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union
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{
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T m_value;
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deUint8 m_isWrittenToGuard[sizeof(T)];
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};
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deInt32 m_postguard; // \note guards are not const qualified since the GL implementation might modify them
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};
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template <typename T>
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StateQueryMemoryWriteGuard<T>::StateQueryMemoryWriteGuard (void)
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: m_preguard ((deInt32)(GUARD_VALUE))
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, m_postguard ((deInt32)(GUARD_VALUE))
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{
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for (size_t i = 0; i < DE_LENGTH_OF_ARRAY(m_isWrittenToGuard); ++i)
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m_isWrittenToGuard[i] = (deUint8)WRITE_GUARD_VALUE;
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}
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template <typename T>
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StateQueryMemoryWriteGuard<T>::operator T& (void)
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{
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return m_value;
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}
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template <typename T>
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T* StateQueryMemoryWriteGuard<T>::operator & (void)
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{
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return &m_value;
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}
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template <typename T>
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bool StateQueryMemoryWriteGuard<T>::isUndefined () const
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{
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for (size_t i = 0; i < DE_LENGTH_OF_ARRAY(m_isWrittenToGuard); ++i)
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if (m_isWrittenToGuard[i] != (deUint8)WRITE_GUARD_VALUE)
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return false;
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return true;
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}
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template <typename T>
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bool StateQueryMemoryWriteGuard<T>::isMemoryContaminated () const
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{
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return (m_preguard != (deInt32)(GUARD_VALUE)) || (m_postguard != (deInt32)(GUARD_VALUE));
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}
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template <typename T>
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bool StateQueryMemoryWriteGuard<T>::verifyValidity (tcu::TestContext& testCtx) const
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{
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using tcu::TestLog;
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if (m_preguard != (deInt32)(GUARD_VALUE))
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{
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testCtx.getLog() << TestLog::Message << "// ERROR: Pre-guard value was modified " << TestLog::EndMessage;
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if (testCtx.getTestResult() == QP_TEST_RESULT_PASS ||
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testCtx.getTestResult() == QP_TEST_RESULT_LAST)
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testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Get* did an illegal memory write");
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return false;
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}
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else if (m_postguard != (deInt32)(GUARD_VALUE))
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{
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testCtx.getLog() << TestLog::Message << "// ERROR: Post-guard value was modified " << TestLog::EndMessage;
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if (testCtx.getTestResult() == QP_TEST_RESULT_PASS ||
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testCtx.getTestResult() == QP_TEST_RESULT_LAST)
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testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Get* did an illegal memory write");
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return false;
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}
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else if (isUndefined())
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{
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testCtx.getLog() << TestLog::Message << "// ERROR: Get* did not return a value" << TestLog::EndMessage;
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if (testCtx.getTestResult() == QP_TEST_RESULT_PASS ||
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testCtx.getTestResult() == QP_TEST_RESULT_LAST)
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testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Get* did not return a value");
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return false;
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}
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return true;
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}
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template<typename T>
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std::ostream& operator<< (std::ostream& str, const StateQueryMemoryWriteGuard<T>& guard)
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{
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return str << guard.get();
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}
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} // StateQueryUtil
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} // gls
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} // deqp
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#endif // _GLSSTATEQUERYUTIL_HPP
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