58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
// Copyright (C) 2023 Jérôme "Lynix" Leclercq (lynix680@gmail.com)
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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(BufferType type, UInt64 size, BufferUsageFlags usage, const void* initialData) :
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Buffer(DataStorage::Software, type, size, usage | BufferUsage::DirectMapping | BufferUsage::Dynamic | BufferUsage::PersistentMapping | BufferUsage::Read | BufferUsage::Write),
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m_mapped(false)
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{
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m_buffer = std::make_unique<UInt8[]>(size);
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if (initialData)
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std::memcpy(&m_buffer[0], initialData, size);
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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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const UInt8* SoftwareBuffer::GetData() const
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{
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return &m_buffer[0];
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}
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void* SoftwareBuffer::Map(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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std::shared_ptr<Buffer> SoftwareBufferFactory(BufferType type, UInt64 size, BufferUsageFlags usage, const void* initialData)
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{
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return std::make_shared<SoftwareBuffer>(type, size, usage, initialData);
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}
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}
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