/// <summary>
/// Binds the vertex buffer to the binding given by index.
/// </summary>
/// <param name="index">The binding index to bind the vertex buffer to.</param>
/// <param name="buffer">The vertex buffer to bind.</param>
public void BindVertexBuffer(uint index, VertexBuffer buffer)
{
// Validate
if (!IsRecording)
{
throw new InvalidOperationException("Cannot bind a vertex buffer in a non-recording command recorder");
}
if (buffer.IsDisposed)
{
throw new ObjectDisposedException(nameof(buffer));
}
if (index >= BoundPipeline !.VertexBindingCount)
{
throw new InvalidOperationException($"Vertex buffer index {index} is invalid for the bound pipeline");
}
uint mask = buffer.VertexDescription.LocationMask;
if ((BoundLayout !.VertexLocationMask & mask) != mask)
{
throw new ArgumentException("Invalid vertex buffer bind - attribute location mismatch", nameof(buffer));
}
// Bind vertex buffer
var handle = buffer.Handle.Handle;
ulong ZERO = 0;
_cmd !.Cmd.CmdBindVertexBuffers(index, 1, &handle, &ZERO);
_vertexBufferMask |= (1u << (int)index);
}
/// <summary>
/// Binds the vertex buffer as the source of vertex data for following draw commands.
/// </summary>
/// <param name="buffer">The vertex buffer to bind.</param>
public void BindVertexBuffer(VertexBuffer buffer)
{
// Validate
if (!IsRecording)
{
throw new InvalidOperationException("Cannot bind a vertex buffer in a non-recording command recorder");
}
if (buffer.IsDisposed)
{
throw new ObjectDisposedException(nameof(buffer));
}
if (BoundPipeline !.VertexBindingCount != 1)
{
throw new InvalidOperationException(
"Cannot bind a single vertex buffer to pipeline expecting more than one");
}
uint mask = buffer.VertexDescription.LocationMask;
if ((BoundLayout !.VertexLocationMask & mask) != mask)
{
throw new ArgumentException("Invalid vertex buffer bind - attribute location mismatch", nameof(buffer));
}
// Bind vertex buffer
var handle = buffer.Handle.Handle;
ulong ZERO = 0;
_cmd !.Cmd.CmdBindVertexBuffers(0, 1, &handle, &ZERO);
_vertexBufferMask = 0x1;
}
/// <summary>
/// Binds multiple vertex buffers to the pipeline, starting at binding index 0.
/// </summary>
/// <param name="buffers">The buffers to bind.</param>
public void BindVertexBuffers(params VertexBuffer[] buffers)
{
// Validate
if (!IsRecording)
{
throw new InvalidOperationException("Cannot bind a vertex buffer in a non-recording command recorder");
}
if (buffers.Length != BoundPipeline !.VertexBindingCount)
{
throw new InvalidOperationException("Vertex buffer count mismatch for pipeline bind");
}
if (buffers.Length == 0)
{
return;
}
// Per-buffer validate
foreach (var buffer in buffers)
{
if (buffer.IsDisposed)
{
throw new ObjectDisposedException(nameof(buffer));
}
uint mask = buffer.VertexDescription.LocationMask;
if ((BoundLayout !.VertexLocationMask & mask) != mask)
{
throw new ArgumentException("Invalid vertex buffer bind - attribute location mismatch", nameof(buffers));
}
}
// Bind the buffers
var handles = stackalloc VulkanHandle <VkBuffer> [buffers.Length];
var offsets = stackalloc ulong[buffers.Length];
for (int i = 0; i < buffers.Length; ++i)
{
handles[i] = buffers[i].Handle.Handle;
offsets[i] = 0;
_vertexBufferMask |= (1u << i);
}
_cmd !.Cmd.CmdBindVertexBuffers(0, (uint)buffers.Length, handles, offsets);
}
