104 lines
1.9 KiB
C++
104 lines
1.9 KiB
C++
// Copyright (C) 2015 Jérôme Leclercq
|
|
// This file is part of the "Nazara Engine - Utility module"
|
|
// For conditions of distribution and use, see copyright notice in Config.hpp
|
|
|
|
#include <Nazara/Utility/SoftwareBuffer.hpp>
|
|
#include <Nazara/Core/Error.hpp>
|
|
#include <Nazara/Utility/Config.hpp>
|
|
#include <cstring>
|
|
#include <stdexcept>
|
|
#include <Nazara/Utility/Debug.hpp>
|
|
|
|
namespace Nz
|
|
{
|
|
SoftwareBuffer::SoftwareBuffer(Buffer* parent, BufferType type) :
|
|
m_type(type)
|
|
{
|
|
NazaraUnused(parent);
|
|
}
|
|
|
|
SoftwareBuffer::~SoftwareBuffer()
|
|
{
|
|
}
|
|
|
|
bool SoftwareBuffer::Create(unsigned int size, BufferUsage usage)
|
|
{
|
|
NazaraUnused(usage);
|
|
|
|
// Cette allocation est protégée car sa taille dépend directement de paramètres utilisateurs
|
|
try
|
|
{
|
|
m_buffer = new UInt8[size];
|
|
}
|
|
catch (const std::exception& e)
|
|
{
|
|
NazaraError("Failed to allocate software buffer (" + String(e.what()) + ')');
|
|
return false;
|
|
}
|
|
|
|
m_mapped = false;
|
|
|
|
return true;
|
|
}
|
|
|
|
void SoftwareBuffer::Destroy()
|
|
{
|
|
delete[] m_buffer;
|
|
}
|
|
|
|
bool SoftwareBuffer::Fill(const void* data, unsigned int offset, unsigned int size, bool forceDiscard)
|
|
{
|
|
NazaraUnused(forceDiscard);
|
|
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_mapped)
|
|
{
|
|
NazaraError("Buffer already mapped");
|
|
return false;
|
|
}
|
|
#endif
|
|
|
|
std::memcpy(&m_buffer[offset], data, size);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool SoftwareBuffer::IsHardware() const
|
|
{
|
|
return false;
|
|
}
|
|
|
|
void* SoftwareBuffer::Map(BufferAccess access, unsigned int offset, unsigned int size)
|
|
{
|
|
NazaraUnused(access);
|
|
NazaraUnused(size);
|
|
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (m_mapped)
|
|
{
|
|
NazaraError("Buffer already mapped");
|
|
return nullptr;
|
|
}
|
|
#endif
|
|
|
|
m_mapped = true;
|
|
|
|
return &m_buffer[offset];
|
|
}
|
|
|
|
bool SoftwareBuffer::Unmap()
|
|
{
|
|
#if NAZARA_UTILITY_SAFE
|
|
if (!m_mapped)
|
|
{
|
|
NazaraError("Buffer not mapped");
|
|
return true;
|
|
}
|
|
#endif
|
|
|
|
m_mapped = false;
|
|
|
|
return true;
|
|
}
|
|
}
|