104 lines
1.8 KiB
C++
104 lines
1.8 KiB
C++
// Copyright (C) 2012 Jérôme Leclercq
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// This file is part of the "Nazara Engine - Utility module"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Utility/SoftwareBuffer.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Utility/Config.hpp>
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#include <cstring>
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#include <stdexcept>
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#include <Nazara/Utility/Debug.hpp>
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NzSoftwareBuffer::NzSoftwareBuffer(NzBuffer* parent, nzBufferType type) :
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m_type(type)
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{
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NazaraUnused(parent);
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}
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NzSoftwareBuffer::~NzSoftwareBuffer()
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{
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}
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bool NzSoftwareBuffer::Create(unsigned int size, nzBufferUsage usage)
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{
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NazaraUnused(usage);
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// Cette allocation est protégée car sa taille dépend directement de paramètres utilisateurs
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try
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{
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m_buffer = new nzUInt8[size];
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}
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catch (const std::exception& e)
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{
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NazaraError("Failed to allocate software buffer (" + NzString(e.what()) + ')');
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return false;
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}
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m_mapped = false;
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return true;
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}
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void NzSoftwareBuffer::Destroy()
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{
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delete[] m_buffer;
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}
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bool NzSoftwareBuffer::Fill(const void* data, unsigned int offset, unsigned int size)
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{
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#if NAZARA_UTILITY_SAFE
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if (m_mapped)
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{
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NazaraError("Buffer already mapped");
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return false;
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}
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#endif
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std::memcpy(&m_buffer[offset], data, size);
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return true;
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}
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void* NzSoftwareBuffer::GetPointer()
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{
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return m_buffer;
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}
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bool NzSoftwareBuffer::IsHardware() const
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{
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return false;
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}
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void* NzSoftwareBuffer::Map(nzBufferAccess access, unsigned int offset, unsigned int size)
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{
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NazaraUnused(access);
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NazaraUnused(size);
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#if NAZARA_UTILITY_SAFE
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if (m_mapped)
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{
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NazaraError("Buffer already mapped");
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return nullptr;
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}
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#endif
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m_mapped = true;
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return &m_buffer[offset];
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}
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bool NzSoftwareBuffer::Unmap()
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{
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#if NAZARA_UTILITY_SAFE
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if (!m_mapped)
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{
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NazaraError("Buffer not mapped");
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return true;
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}
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#endif
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m_mapped = false;
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return true;
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}
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