76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
// Copyright (C) 2020 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 <cstring>
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#include <exception>
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#include <Nazara/Utility/Debug.hpp>
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namespace Nz
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{
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SoftwareBuffer::SoftwareBuffer(Buffer* /*parent*/, BufferType /*type*/)
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{
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}
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bool SoftwareBuffer::Fill(const void* data, UInt64 offset, UInt64 size)
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{
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NazaraAssert(!m_mapped, "Buffer is already mapped");
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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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bool SoftwareBuffer::Initialize(UInt64 size, BufferUsageFlags /*usage*/)
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{
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// Protect the allocation to prevent a memory exception to escape the function
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try
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{
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m_buffer.resize(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 (" + std::string(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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const UInt8* SoftwareBuffer::GetData() const
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{
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return m_buffer.data();
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}
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UInt64 SoftwareBuffer::GetSize() const
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{
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return UInt64(m_buffer.size());
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}
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DataStorage SoftwareBuffer::GetStorage() const
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{
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return DataStorage::Software;
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}
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void* SoftwareBuffer::Map(BufferAccess /*access*/, UInt64 offset, UInt64 /*size*/)
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{
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NazaraAssert(!m_mapped, "Buffer is already mapped");
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m_mapped = true;
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return &m_buffer[offset];
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}
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bool SoftwareBuffer::Unmap()
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{
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NazaraAssert(m_mapped, "Buffer is not mapped");
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m_mapped = false;
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return true;
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}
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}
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