public void SetVertexBuffers(ReadOnlySpan <VertexBufferDescriptor> vertexBuffers)
{
int bindingIndex;
for (bindingIndex = 0; bindingIndex < vertexBuffers.Length; bindingIndex++)
{
VertexBufferDescriptor vb = vertexBuffers[bindingIndex];
if (vb.Buffer.Handle != BufferHandle.Null)
{
GL.BindVertexBuffer(bindingIndex, vb.Buffer.Handle.ToInt32(), (IntPtr)vb.Buffer.Offset, vb.Stride);
GL.VertexBindingDivisor(bindingIndex, vb.Divisor);
_vertexBuffersInUse |= 1u << bindingIndex;
}
else
{
if ((_vertexBuffersInUse & (1u << bindingIndex)) != 0)
{
GL.BindVertexBuffer(bindingIndex, 0, IntPtr.Zero, 0);
_vertexBuffersInUse &= ~(1u << bindingIndex);
}
}
_vertexBuffers[bindingIndex] = vb;
}
_vertexBuffersCount = bindingIndex;
_needsAttribsUpdate = true;
}
public void SetVertexBuffers(ReadOnlySpan <VertexBufferDescriptor> vertexBuffers)
{
int bindingIndex = 0;
for (int index = 0; index < vertexBuffers.Length; index++)
{
VertexBufferDescriptor vb = vertexBuffers[index];
if (vb.Buffer.Handle != null)
{
GL.BindVertexBuffer(bindingIndex, vb.Buffer.Handle.ToInt32(), (IntPtr)vb.Buffer.Offset, vb.Stride);
GL.VertexBindingDivisor(bindingIndex, vb.Divisor);
}
else
{
GL.BindVertexBuffer(bindingIndex, 0, IntPtr.Zero, 0);
}
_vertexBuffers[index] = vb;
bindingIndex++;
}
_vertexBuffersCount = bindingIndex;
_needsAttribsUpdate = true;
}
// buffer -> stream -> vertex -> element
private void ParseStride(BinaryReader reader)
{
for (int i = 0; i < VertexBuffers.Length; ++i)
{
VertexBufferDescriptor vbo = VertexBuffers[i];
Stride[i] = new object[2][][];
long[] offset = { vbo.DataStream1Pointer, vbo.DataStream2Pointer };
byte[] sizes = { vbo.StrideStream1, vbo.StrideStream2 };
VertexElementDescriptor[][] elements = SplitVBE(VertexElements[i]);
for (int j = 0; j < offset.Length; ++j)
{
Stride[i][j] = new object[vbo.VertexCount][];
reader.BaseStream.Position = offset[j];
for (int k = 0; k < vbo.VertexCount; ++k)
{
Stride[i][j][k] = new object[elements[j].Length];
long next = reader.BaseStream.Position + sizes[j];
long current = reader.BaseStream.Position;
for (int l = 0; l < elements[j].Length; ++l)
{
reader.BaseStream.Position = current + elements[j][l].Offset;
Stride[i][j][k][l] = ReadElement(elements[j][l].Format, reader);
}
reader.BaseStream.Position = next;
}
}
}
}
/// <summary>
/// Ensures that the graphics engine bindings are visible to the host GPU.
/// Note: this actually performs the binding using the host graphics API.
/// </summary>
public void CommitGraphicsBindings()
{
if (_indexBufferDirty || _rebind)
{
_indexBufferDirty = false;
if (_indexBuffer.Address != 0)
{
BufferRange buffer = GetBufferRange(_indexBuffer.Address, _indexBuffer.Size);
_context.Renderer.Pipeline.SetIndexBuffer(buffer, _indexBuffer.Type);
}
}
else if (_indexBuffer.Address != 0)
{
SynchronizeBufferRange(_indexBuffer.Address, _indexBuffer.Size);
}
uint vbEnableMask = _vertexBuffersEnableMask;
if (_vertexBuffersDirty || _rebind)
{
_vertexBuffersDirty = false;
Span <VertexBufferDescriptor> vertexBuffers = stackalloc VertexBufferDescriptor[Constants.TotalVertexBuffers];
for (int index = 0; (vbEnableMask >> index) != 0; index++)
{
VertexBuffer vb = _vertexBuffers[index];
if (vb.Address == 0)
{
continue;
}
BufferRange buffer = GetBufferRange(vb.Address, vb.Size);
vertexBuffers[index] = new VertexBufferDescriptor(buffer, vb.Stride, vb.Divisor);
}
_context.Renderer.Pipeline.SetVertexBuffers(vertexBuffers);
}
else
{
for (int index = 0; (vbEnableMask >> index) != 0; index++)
{
VertexBuffer vb = _vertexBuffers[index];
if (vb.Address == 0)
{
continue;
}
SynchronizeBufferRange(vb.Address, vb.Size);
}
}
if (_gpStorageBuffersDirty || _rebind)
{
_gpStorageBuffersDirty = false;
BindBuffers(_gpStorageBuffers, isStorage: true);
}
else
{
UpdateBuffers(_gpStorageBuffers);
}
if (_gpUniformBuffersDirty || _rebind)
{
_gpUniformBuffersDirty = false;
BindBuffers(_gpUniformBuffers, isStorage: false);
}
else
{
UpdateBuffers(_gpUniformBuffers);
}
_rebind = false;
}
private VertexElementDescriptor[] ParseVBE(BinaryReader reader, VertexBufferDescriptor descriptor)
{
reader.BaseStream.Position = descriptor.VertexElementDescriptorPointer;
return(reader.ReadArray <VertexElementDescriptor>(descriptor.VertexElementDescriptorCount));
}
/// <summary>
/// Ensures that the graphics engine bindings are visible to the host GPU.
/// Note: this actually performs the binding using the host graphics API.
/// </summary>
public void CommitGraphicsBindings()
{
var bufferCache = _channel.MemoryManager.Physical.BufferCache;
if (_indexBufferDirty || _rebind)
{
_indexBufferDirty = false;
if (_indexBuffer.Address != 0)
{
BufferRange buffer = bufferCache.GetBufferRange(_indexBuffer.Address, _indexBuffer.Size);
_context.Renderer.Pipeline.SetIndexBuffer(buffer, _indexBuffer.Type);
}
}
else if (_indexBuffer.Address != 0)
{
bufferCache.SynchronizeBufferRange(_indexBuffer.Address, _indexBuffer.Size);
}
uint vbEnableMask = _vertexBuffersEnableMask;
if (_vertexBuffersDirty || _rebind)
{
_vertexBuffersDirty = false;
Span <VertexBufferDescriptor> vertexBuffers = stackalloc VertexBufferDescriptor[Constants.TotalVertexBuffers];
for (int index = 0; (vbEnableMask >> index) != 0; index++)
{
VertexBuffer vb = _vertexBuffers[index];
if (vb.Address == 0)
{
continue;
}
BufferRange buffer = bufferCache.GetBufferRange(vb.Address, vb.Size);
vertexBuffers[index] = new VertexBufferDescriptor(buffer, vb.Stride, vb.Divisor);
}
_context.Renderer.Pipeline.SetVertexBuffers(vertexBuffers);
}
else
{
for (int index = 0; (vbEnableMask >> index) != 0; index++)
{
VertexBuffer vb = _vertexBuffers[index];
if (vb.Address == 0)
{
continue;
}
bufferCache.SynchronizeBufferRange(vb.Address, vb.Size);
}
}
if (_transformFeedbackBuffersDirty || _rebind)
{
_transformFeedbackBuffersDirty = false;
Span <BufferRange> tfbs = stackalloc BufferRange[Constants.TotalTransformFeedbackBuffers];
for (int index = 0; index < Constants.TotalTransformFeedbackBuffers; index++)
{
BufferBounds tfb = _transformFeedbackBuffers[index];
if (tfb.Address == 0)
{
tfbs[index] = BufferRange.Empty;
continue;
}
tfbs[index] = bufferCache.GetBufferRange(tfb.Address, tfb.Size, write: true);
}
_context.Renderer.Pipeline.SetTransformFeedbackBuffers(tfbs);
}
else
{
for (int index = 0; index < Constants.TotalTransformFeedbackBuffers; index++)
{
BufferBounds tfb = _transformFeedbackBuffers[index];
if (tfb.Address == 0)
{
continue;
}
bufferCache.SynchronizeBufferRange(tfb.Address, tfb.Size);
}
}
if (_gpStorageBuffersDirty || _rebind)
{
_gpStorageBuffersDirty = false;
BindBuffers(bufferCache, _gpStorageBuffers, isStorage: true);
}
else
{
UpdateBuffers(_gpStorageBuffers);
}
if (_gpUniformBuffersDirty || _rebind)
{
_gpUniformBuffersDirty = false;
BindBuffers(bufferCache, _gpUniformBuffers, isStorage: false);
}
else
{
UpdateBuffers(_gpUniformBuffers);
}
CommitBufferTextureBindings();
_rebind = false;
}
