// Size in bytes, and the usages
private protected Buffer(uint size, BufferType type, Vk.BufferUsages usages)
{
Device = SpectrumApp.Instance.GraphicsDevice;
Size = size;
Type = type;
// Create the buffer
var bci = new Vk.BufferCreateInfo(
size,
Vk.BufferUsages.TransferDst | Vk.BufferUsages.TransferSrc | usages,
flags: Vk.BufferCreateFlags.None,
sharingMode: Vk.SharingMode.Exclusive
);
VkBuffer = Device.VkDevice.CreateBuffer(bci);
// Create the backing memory
var memReq = VkBuffer.GetMemoryRequirements();
var memIdx = Device.FindMemoryTypeIndex(memReq.MemoryTypeBits, Vk.MemoryProperties.DeviceLocal);
if (memIdx == -1)
{
throw new InvalidOperationException("Cannot find a memory type that supports buffers (this means bad or out-of-date hardware)");
}
var mai = new Vk.MemoryAllocateInfo(memReq.Size, memIdx);
VkMemory = Device.VkDevice.AllocateMemory(mai);
VkBuffer.BindMemory(VkMemory);
}
/// <summary>
/// Initializes a new instance of the <see cref="MappedMemoryRange"/> structure.
/// </summary>
/// <param name="memory">The memory object to which this range belongs.</param>
/// <param name="offset">The zero-based byte offset from the beginning of the memory object.</param>
/// <param name="size">
/// Is either the size of range, or <see cref="WholeSize"/> to affect the range from offset
/// to the end of the current mapping of the allocation.
/// </param>
public MappedMemoryRange(DeviceMemory memory, long offset = 0, long size = WholeSize)
{
Type = StructureType.MappedMemoryRange;
Next = IntPtr.Zero;
Memory = memory;
Offset = offset;
Size = size;
}
/// <summary>
/// Initializes a new instance of the <see cref="SparseMemoryBind"/> structure.
/// </summary>
/// <param name="resourceOffset">The offset into the resource.</param>
/// <param name="size">The size of the memory region to be bound.</param>
/// <param name="memory">
/// The <see cref="DeviceMemory"/> object that the range of the resource is bound to. If
/// memory 0, the range is unbound.
/// </param>
/// <param name="memoryOffset">
/// The offset into the <see cref="DeviceMemory"/> object to bind the resource range to. If
/// memory is 0, this value is ignored.
/// </param>
/// <param name="flags">A bitmask specifying usage of the binding operation.</param>
public SparseMemoryBind(long resourceOffset, long size, DeviceMemory memory = null,
long memoryOffset = 0, SparseMemoryBindFlags flags = 0)
{
ResourceOffset = resourceOffset;
Size = size;
Memory = memory;
MemoryOffset = memoryOffset;
Flags = flags;
}
/// <summary>
/// Bind device memory to a buffer object.
/// <para>Must not already be backed by a memory object.</para>
/// <para>Must not have been created with any sparse memory binding flags.</para>
/// </summary>
/// <param name="memory">The object describing the device memory to attach.</param>
/// <param name="memoryOffset">
/// The start offset of the region of memory which is to be bound to the buffer. The number
/// of bytes returned in the <see cref="MemoryRequirements.Size"/> member in memory, starting
/// from <paramref name="memoryOffset"/> bytes, will be bound to the specified buffer.
/// </param>
/// <exception cref="VulkanException">Vulkan returns an error code.</exception>
public void BindMemory(DeviceMemory memory, long memoryOffset = 0)
{
Result result = vkBindBufferMemory(Parent, this, memory, memoryOffset);
VulkanException.ThrowForInvalidResult(result);
}
private protected Texture(TextureType type, uint w, uint h, uint d, uint layers)
{
Device = SpectrumApp.Instance.GraphicsDevice;
Type = type;
Width = w;
Height = h;
Depth = d;
Layers = layers;
// Limits checking
if (w == 0)
{
throw new ArgumentOutOfRangeException(nameof(w), "A texture cannot have a width of zero");
}
if (h == 0)
{
throw new ArgumentOutOfRangeException(nameof(h), "A texture cannot have a height of zero");
}
if (d == 0)
{
throw new ArgumentOutOfRangeException(nameof(d), "A texture cannot have a depth of zero");
}
if (layers == 0)
{
throw new ArgumentOutOfRangeException(nameof(layers), "A texture cannot have 0 layers");
}
if (type == TextureType.Texture3D && layers != 1)
{
throw new ArgumentOutOfRangeException(nameof(layers), "3D textures cannot be arrays");
}
if (layers > Limits.MaxTextureLayers)
{
throw new ArgumentOutOfRangeException(nameof(layers), $"The texture array count ({layers}) is too big for the device ({Limits.MaxTextureLayers})");
}
switch (type)
{
case TextureType.Texture1D:
if (w > Limits.MaxTextureSize1D)
{
throw new ArgumentOutOfRangeException(
nameof(w), $"The 1D texture size ({w}) is too big for the device ({Limits.MaxTextureSize1D})"
);
}
break;
case TextureType.Texture2D:
if (w > Limits.MaxTextureSize2D || h > Limits.MaxTextureSize2D)
{
throw new ArgumentOutOfRangeException(
nameof(w), $"The 2D texture size ({w}x{h}) is too big for the device ({Limits.MaxTextureSize2D})"
);
}
break;
case TextureType.Texture3D:
if (w > Limits.MaxTextureSize3D || h > Limits.MaxTextureSize3D || d > Limits.MaxTextureSize3D)
{
throw new ArgumentOutOfRangeException(
nameof(w), $"The 3D texture size ({w}x{h}x{d}) is too big for the device ({Limits.MaxTextureSize3D})"
);
}
break;
}
// Create the image
var ici = new Vk.ImageCreateInfo {
ImageType = (Vk.ImageType)type,
Extent = new Vk.Extent3D((int)w, (int)h, (int)d),
MipLevels = 1,
ArrayLayers = (int)layers,
Format = Vk.Format.R8G8B8A8UNorm,
Tiling = Vk.ImageTiling.Optimal,
InitialLayout = Vk.ImageLayout.Undefined,
Usage = Vk.ImageUsages.TransferDst | Vk.ImageUsages.Sampled | Vk.ImageUsages.TransferSrc,
SharingMode = Vk.SharingMode.Exclusive,
Samples = Vk.SampleCounts.Count1,
Flags = Vk.ImageCreateFlags.None
};
VkImage = Device.VkDevice.CreateImage(ici);
// Create the backing memory for the image
var memReq = VkImage.GetMemoryRequirements();
var memIdx = Device.FindMemoryTypeIndex(memReq.MemoryTypeBits, Vk.MemoryProperties.DeviceLocal);
if (memIdx == -1)
{
throw new InvalidOperationException("Cannot find a memory type that supports textures (this means bad or out-of-date hardware)");
}
var mai = new Vk.MemoryAllocateInfo(memReq.Size, memIdx);
VkMemory = Device.VkDevice.AllocateMemory(mai);
DataSize = (uint)memReq.Size;
VkImage.BindMemory(VkMemory);
// Create the view
var vci = new Vk.ImageViewCreateInfo(
Vk.Format.R8G8B8A8UNorm,
new Vk.ImageSubresourceRange(Vk.ImageAspects.Color, 0, 1, 0, (int)Layers),
viewType: GetViewType(Type, layers)
);
VkView = VkImage.CreateView(vci);
// Make the initial layout transition
Device.SubmitScratchCommand(buf => {
buf.CmdPipelineBarrier(Vk.PipelineStages.AllGraphics, Vk.PipelineStages.AllGraphics, imageMemoryBarriers: new[] { new Vk.ImageMemoryBarrier(
VkImage, new Vk.ImageSubresourceRange(Vk.ImageAspects.Color, 0, 1, 0, 1), Vk.Accesses.None, Vk.Accesses.ShaderRead,
Vk.ImageLayout.Undefined, Vk.ImageLayout.ShaderReadOnlyOptimal
) });
});
}
