117 lines
2.8 KiB
C++
117 lines
2.8 KiB
C++
// Copyright (C) 2012 Jérôme Leclercq
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// This file is part of the "Nazara Engine".
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/Renderer/VertexBuffer.hpp>
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#include <Nazara/Core/Error.hpp>
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#include <Nazara/Renderer/Debug.hpp>
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NzVertexBuffer::NzVertexBuffer(NzBuffer* buffer, unsigned int startVertex, unsigned int vertexCount) :
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m_buffer(buffer),
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m_ownsBuffer(false),
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m_startVertex(startVertex),
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m_vertexCount(vertexCount)
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{
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m_buffer->AddResourceReference();
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}
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NzVertexBuffer::NzVertexBuffer(unsigned int length, nzUInt8 typeSize, nzBufferUsage usage) :
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m_ownsBuffer(true),
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m_startVertex(0),
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m_vertexCount(length)
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{
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m_buffer = new NzBuffer(nzBufferType_Vertex, length, typeSize, usage);
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m_buffer->AddResourceReference();
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m_buffer->SetPersistent(false);
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}
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NzVertexBuffer::NzVertexBuffer(const NzVertexBuffer& vertexBuffer) :
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m_ownsBuffer(vertexBuffer.m_ownsBuffer),
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m_startVertex(vertexBuffer.m_startVertex),
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m_vertexCount(vertexBuffer.m_vertexCount)
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{
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if (m_ownsBuffer)
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{
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m_buffer = new NzBuffer(nzBufferType_Vertex, vertexBuffer.m_buffer->GetLength(), vertexBuffer.m_buffer->GetSize(), vertexBuffer.m_buffer->GetUsage());
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m_buffer->AddResourceReference();
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m_buffer->SetPersistent(false);
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m_buffer->CopyContent(*vertexBuffer.m_buffer);
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}
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else
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{
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m_buffer = vertexBuffer.m_buffer;
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m_buffer->AddResourceReference();
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}
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}
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NzVertexBuffer::~NzVertexBuffer()
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{
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m_buffer->RemoveResourceReference();
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}
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bool NzVertexBuffer::Fill(const void* data, unsigned int offset, unsigned int length)
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{
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#if NAZARA_RENDERER_SAFE
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if (offset+length > m_vertexCount)
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{
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NazaraError("Exceeding virtual buffer size");
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return false;
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}
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#endif
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return m_buffer->Fill(data, m_startVertex+offset, length);
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}
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NzBuffer* NzVertexBuffer::GetBuffer() const
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{
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return m_buffer;
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}
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void* NzVertexBuffer::GetBufferPtr()
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{
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return reinterpret_cast<nzUInt8*>(m_buffer->GetBufferPtr()) + m_startVertex*m_buffer->GetTypeSize();
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}
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const void* NzVertexBuffer::GetBufferPtr() const
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{
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return reinterpret_cast<const nzUInt8*>(m_buffer->GetBufferPtr()) + m_startVertex*m_buffer->GetTypeSize();
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}
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unsigned int NzVertexBuffer::GetStartVertex() const
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{
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return m_startVertex;
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}
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nzUInt8 NzVertexBuffer::GetTypeSize() const
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{
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return m_buffer->GetTypeSize();
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}
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unsigned int NzVertexBuffer::GetVertexCount() const
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{
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return m_vertexCount;
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}
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bool NzVertexBuffer::IsHardware() const
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{
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return m_buffer->IsHardware();
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}
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void* NzVertexBuffer::Lock(nzBufferLock lock, unsigned int offset, unsigned int length)
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{
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#if NAZARA_RENDERER_SAFE
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if (offset+length > m_vertexCount)
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{
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NazaraError("Exceeding virtual buffer size");
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return nullptr;
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}
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#endif
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return m_buffer->Lock(lock, m_startVertex+offset, (length) ? length : m_vertexCount-offset);
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}
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bool NzVertexBuffer::Unlock()
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{
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return m_buffer->Unlock();
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}
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