68 lines
2.0 KiB
C++
68 lines
2.0 KiB
C++
// Copyright (C) 2024 Jérôme "SirLynix" 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/UniformBuffer.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Core/ErrorFlags.hpp>
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#include <Nazara/Utility/Config.hpp>
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#include <Nazara/Utility/Debug.hpp>
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namespace Nz
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{
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UniformBuffer::UniformBuffer(std::shared_ptr<Buffer> buffer) :
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m_buffer(std::move(buffer)),
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m_startOffset(0)
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{
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NazaraAssert(m_buffer, "invalid buffer");
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NazaraAssert(m_buffer->GetType() == BufferType::Uniform, "buffer must be an uniform buffer");
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m_endOffset = m_buffer->GetSize();
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}
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UniformBuffer::UniformBuffer(std::shared_ptr<Buffer> buffer, UInt64 offset, UInt64 size) :
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m_buffer(std::move(buffer)),
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m_endOffset(size),
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m_startOffset(offset)
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{
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}
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UniformBuffer::UniformBuffer(UInt64 size, BufferUsageFlags usage, const BufferFactory& bufferFactory, const void* initialData) :
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m_endOffset(size),
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m_startOffset(0)
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{
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NazaraAssert(size > 0, "invalid size");
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m_buffer = bufferFactory(BufferType::Uniform, size, usage, initialData);
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}
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bool UniformBuffer::Fill(const void* data, UInt64 offset, UInt64 size)
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{
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NazaraAssert(m_buffer, "Invalid buffer");
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NazaraAssert(m_startOffset + offset + size <= m_endOffset, "Exceeding virtual buffer size");
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return m_buffer->Fill(data, m_startOffset + offset, size);
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}
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void* UniformBuffer::Map(UInt64 offset, UInt64 size)
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{
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NazaraAssert(m_buffer, "Invalid buffer");
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NazaraAssert(m_startOffset + offset + size <= m_endOffset, "Exceeding virtual buffer size");
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return m_buffer->Map(m_startOffset + offset, size);
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}
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void* UniformBuffer::Map(UInt64 offset, UInt64 size) const
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{
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NazaraAssert(m_buffer, "Invalid buffer");
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NazaraAssert(m_startOffset + offset + size <= m_endOffset, "Exceeding virtual buffer size");
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return m_buffer->Map(m_startOffset + offset, size);
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}
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void UniformBuffer::Unmap() const
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{
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m_buffer->Unmap();
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}
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}
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