private void createIndexBuffer()
{
var size = Marshal.SizeOf(typeof(short)) * this.indices.Count;
var transferUsage = Vk.BufferUsageFlags.TransferSrc;
var indexUsage = Vk.BufferUsageFlags.IndexBuffer
| Vk.BufferUsageFlags.TransferDst;
var transferMemoryProps = Vk.MemoryPropertyFlags.DeviceLocal;
var indexMemoryProps = Vk.MemoryPropertyFlags.HostVisible
| Vk.MemoryPropertyFlags.HostCoherent;
var sharingMode = this.GetSharingMode();
BufferWithMemory stagingBuffer;
try {
stagingBuffer = VkHelper.CreateBuffer(this, size, transferUsage,
transferMemoryProps, sharingMode);
} catch (Vk.ResultException result) {
throw new VkException("An error occurred while creating the staging buffer.", result);
}
IntPtr memory = this.Device.MapMemory(stagingBuffer.Memory, 0, size);
var indexArray = this.indices.ToArray();
MemoryManagement.ArrayToPtr <short>(indexArray, memory, false);
this.Device.UnmapMemory(stagingBuffer.Memory);
try {
BufferWithMemory indexBuffer = VkHelper.CreateBuffer(this, size, indexUsage,
indexMemoryProps, sharingMode);
this.vkIndexBuffer = indexBuffer.Buffer;
this.vkIndexBufferMemory = indexBuffer.Memory;
} catch (Vk.ResultException result) {
throw new VkException("An error occurred while creating the index buffer.", result);
}
VkHelper.CopyBuffer(stagingBuffer.Buffer, this.vkIndexBuffer, size, this);
stagingBuffer.Destroy(this.Device);
}
