bool Buffer::Create(unsigned int size, UInt32 storage, BufferUsage usage)
{
Destroy();
// Notre buffer est-il supporté ?
if (!IsStorageSupported(storage))
{
NazaraError("Buffer storage not supported");
return false;
}
std::unique_ptr<AbstractBuffer> impl(s_bufferFactories[storage](this, m_type));
if (!impl->Create(size, usage))
{
NazaraError("Failed to create buffer");
return false;
}
m_impl = impl.release();
m_size = size;
m_storage = storage;
m_usage = usage;
return true; // Si on arrive ici c'est que tout s'est bien passé.
}
bool Buffer::SetStorage(UInt32 storage)
{
#if NAZARA_UTILITY_SAFE
if (!m_impl)
{
NazaraError("Buffer not valid");
return false;
}
#endif
if (m_storage == storage)
return true;
if (!IsStorageSupported(storage))
{
NazaraError("Storage not supported");
return false;
}
void* ptr = m_impl->Map(BufferAccess_ReadOnly, 0, m_size);
if (!ptr)
{
NazaraError("Failed to map buffer");
return false;
}
CallOnExit unmapMyImpl([this]()
{
m_impl->Unmap();
});
std::unique_ptr<AbstractBuffer> impl(s_bufferFactories[storage](this, m_type));
if (!impl->Create(m_size, m_usage))
{
NazaraError("Failed to create buffer");
return false;
}
CallOnExit destroyImpl([&impl]()
{
impl->Destroy();
});
if (!impl->Fill(ptr, 0, m_size))
{
NazaraError("Failed to fill buffer");
return false;
}
destroyImpl.Reset();
unmapMyImpl.CallAndReset();
m_impl->Destroy();
delete m_impl;
m_impl = impl.release();
m_storage = storage;
return true;
}
bool Buffer::SetStorage(DataStorage storage)
{
NazaraAssert(m_impl, "Invalid buffer");
if (HasStorage(storage))
return true;
if (!IsStorageSupported(storage))
{
NazaraError("Storage not supported");
return false;
}
void* ptr = m_impl->Map(BufferAccess_ReadOnly, 0, m_size);
if (!ptr)
{
NazaraError("Failed to map buffer");
return false;
}
CallOnExit unmapMyImpl([this]()
{
m_impl->Unmap();
});
std::unique_ptr<AbstractBuffer> impl(s_bufferFactories[storage](this, m_type));
if (!impl->Initialize(m_size, m_usage))
{
NazaraError("Failed to create buffer");
return false;
}
if (!impl->Fill(ptr, 0, m_size))
{
NazaraError("Failed to fill buffer");
return false;
}
unmapMyImpl.CallAndReset();
m_impl = std::move(impl);
return true;
}
