internal static VertexBufferId CreateVertexBuffer(BufferDescription description, int stride, IntPtr?data, string debugName)
{
if (description.SizeInBytes == 0)
{
return(VertexBufferId.NULL);
}
var id = new VertexBufferId {
Index = VBuffers.Allocate()
};
MyArrayHelpers.Reserve(ref VBuffersData, id.Index + 1);
VBuffers.Data[id.Index] = new MyHwBufferDesc {
Description = description, DebugName = debugName
};
VBuffersData[id.Index] = new MyVertexBufferData {
Stride = stride
};
VbIndices.Add(id);
if (!data.HasValue)
{
InitVertexBuffer(id);
}
else
{
InitVertexBuffer(id, data.Value);
}
return(id);
}
internal static void InitVertexBuffer(VertexBufferId id, IntPtr data)
{
VBuffersData[id.Index].Buffer = new Buffer(MyRender11.Device, data, VBuffers.Data[id.Index].Description);
if (VBuffers.Data[id.Index].DebugName != null)
{
VBuffersData[id.Index].Buffer.DebugName = VBuffers.Data[id.Index].DebugName;
}
}
internal static void Destroy(VertexBufferId id)
{
Debug.Assert(VbIndices.Contains(id));
VbIndices.Remove(id);
if (VBuffersData[id.Index].Buffer != null)
{
VBuffersData[id.Index].Buffer.Dispose();
VBuffersData[id.Index].Buffer = null;
}
VBuffers.Free(id.Index);
}
internal static void ResizeAndUpdateStaticVertexBuffer(ref VertexBufferId id, int capacity, int stride, IntPtr data, string debugName)
{
if (id == VertexBufferId.NULL)
{
id = CreateVertexBuffer(capacity, stride, data, debugName);
}
else
{
Debug.Assert(stride == id.Stride);
if (id.Capacity != capacity)
{
VBuffersData[id.Index].Buffer.Dispose();
VBuffers.Data[id.Index].Description.SizeInBytes = VBuffersData[id.Index].Stride * capacity;
InitVertexBuffer(id, data);
}
else
{
UpdateVertexBuffer(id, data);
}
}
}
internal static BufferDescription GetBufferDesc(VertexBufferId id)
{
return(VBuffers.Data[id.Index].Description);
}
internal static int GetVertexBufferCapacity(VertexBufferId id)
{
return(VBuffers.Data[id.Index].Description.SizeInBytes / VBuffersData[id.Index].Stride);
}
internal static int GetVertexBufferStride(VertexBufferId id)
{
return(VBuffersData[id.Index].Stride);
}
internal static Buffer GetVertexBuffer(VertexBufferId id)
{
return(VBuffersData[id.Index].Buffer);
}
internal static void UpdateVertexBuffer(VertexBufferId id, IntPtr data)
{
MyRender11.RC.UpdateSubresource(new DataBox(data), VBuffersData[id.Index].Buffer);
}
internal static void ResizeVertexBuffer(VertexBufferId id, int size)
{
VBuffersData[id.Index].Buffer.Dispose();
VBuffers.Data[id.Index].Description.SizeInBytes = VBuffersData[id.Index].Stride * size;
InitVertexBuffer(id);
}