/// <summary>
/// Updates the uniform buffer data with inline data.
/// </summary>
/// <param name="state">Current GPU state</param>
/// <param name="data">Data to be written to the uniform buffer</param>
public void UniformBufferUpdate(GpuState state, ReadOnlySpan <int> data)
{
var uniformBuffer = state.Get <UniformBufferState>(MethodOffset.UniformBufferState);
ulong address = uniformBuffer.Address.Pack() + (uint)uniformBuffer.Offset;
ulong size = (ulong)data.Length * 4;
ulong currentCpuAddress = _ubBeginCpuAddress + _ubByteCount;
if (_ubFollowUpAddress != address || !_ubLastWritten.FullyContains(currentCpuAddress, size) || (_ubByteCount >> 2) + (ulong)data.Length >= MaxUboSize)
{
FlushUboDirty();
_ubByteCount = 0;
UboCacheEntry entry = BufferManager.TranslateCreateAndGetUbo(address, size);
_ubBeginCpuAddress = entry.Address;
_ubLastWritten = entry.Buffer;
}
_context.PhysicalMemory.WriteUntracked(_ubBeginCpuAddress + _ubByteCount, MemoryMarshal.Cast <int, byte>(data));
_ubFollowUpAddress = address + size;
_ubByteCount += size;
state.SetUniformBufferOffset(uniformBuffer.Offset + data.Length * 4);
}
/// <summary>
/// Updates the uniform buffer data with inline data.
/// </summary>
/// <param name="state">Current GPU state</param>
/// <param name="argument">New uniform buffer data word</param>
private void UniformBufferUpdate(GpuState state, int argument)
{
var uniformBuffer = state.Get <UniformBufferState>(MethodOffset.UniformBufferState);
ulong address = uniformBuffer.Address.Pack() + (uint)uniformBuffer.Offset;
ulong currentCpuAddress = _ubBeginCpuAddress + _ubByteCount;
if (_ubFollowUpAddress != address || !_ubLastWritten.FullyContains(currentCpuAddress, 4) || (_ubByteCount >> 2) + 1 >= MaxUboSize)
{
FlushUboDirty();
_ubByteCount = 0;
UboCacheEntry entry = BufferManager.TranslateCreateAndGetUbo(address, 4);
_ubBeginCpuAddress = entry.Address;
_ubLastWritten = entry.Buffer;
}
_context.PhysicalMemory.WriteUntracked(_ubBeginCpuAddress + _ubByteCount, MemoryMarshal.Cast <int, byte>(MemoryMarshal.CreateSpan(ref argument, 1)));
_ubFollowUpAddress = address + 4;
_ubByteCount += 4;
state.SetUniformBufferOffset(uniformBuffer.Offset + 4);
}
/// <summary>
/// Flushes any queued ubo updates.
/// </summary>
private void FlushUboDirty()
{
if (_ubLastWritten != null)
{
_ubLastWritten.ForceDirty(_ubBeginCpuAddress, _ubByteCount);
_ubFollowUpAddress = 0;
_ubLastWritten = null;
}
}
/// <summary>
/// Flushes any queued ubo updates.
/// </summary>
private void FlushUboUpdate()
{
if (_ubLastWritten != null)
{
Span <byte> data = MemoryMarshal.Cast <int, byte>(new Span <int>(_ubData, 0, _ubIntCount));
_ubLastWritten.SetData(_ubBeginCpuAddress, data);
_ubFollowUpAddress = 0;
_ubLastWritten = null;
}
}
