SdlOutputClauses.h

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#pragma once
 
#include "SDL/SdlOutputClause.h"
 
#include <Common/assertion.h>
 
#include <cstddef>
#include <vector>
 
namespace ph
{
 
class SdlOutputClauses final
{
public:
    SdlOutputClauses();
 
    SdlOutputClause& createClause();
    void clear();
 
    std::size_t numClauses() const;
    const SdlOutputClause& operator [] (std::size_t clauseIdx) const;
 
private:
    std::vector<SdlOutputClause> m_clauseBuffer;
    std::size_t m_numUsedClauses;
};
 
inline SdlOutputClauses::SdlOutputClauses() :
    m_clauseBuffer(),
    m_numUsedClauses(0)
{}
 
inline SdlOutputClause& SdlOutputClauses::createClause()
{
    // Increase buffer size if there is not enough clauses
    if(m_numUsedClauses == m_clauseBuffer.size())
    {
        m_clauseBuffer.push_back(SdlOutputClause());
    }
 
    PH_ASSERT_LT(m_numUsedClauses, m_clauseBuffer.size());
    SdlOutputClause& newClause = m_clauseBuffer[m_numUsedClauses++];
 
    // Clear clause data as it may be used
    newClause.clear();
 
    return newClause;
}
 
inline void SdlOutputClauses::clear()
{
    m_numUsedClauses = 0;
}
 
inline std::size_t SdlOutputClauses::numClauses() const
{
    PH_ASSERT_LE(m_numUsedClauses, m_clauseBuffer.size());
    return m_numUsedClauses;
}
 
inline const SdlOutputClause& SdlOutputClauses::operator [] (const std::size_t clauseIdx) const
{
    PH_ASSERT_LT(clauseIdx, numClauses());
    return m_clauseBuffer[clauseIdx];
}
 
}// end namespace ph