internal static unsafe void AllocatePool(out VkDeviceMemory NativeMemory, ref VkDevice device, ref VkPhysicalDevice pDevice, ref VkMemoryPropertyFlags memoryProperties, ref VkMemoryRequirements memoryRequirements, ulong size)
{
var allocateInfo = new VkMemoryAllocateInfo
{
sType = VkStructureType.MemoryAllocateInfo,
allocationSize = size,
};
Vortice.Vulkan.Vulkan.vkGetPhysicalDeviceMemoryProperties(pDevice, out var physicalDeviceMemoryProperties);
var typeBits = memoryRequirements.memoryTypeBits;
for (uint i = 0; i < physicalDeviceMemoryProperties.memoryTypeCount; i++)
{
if ((typeBits & 1) == 1)
{
// Type is available, does it match user properties?
var memoryType = *(&physicalDeviceMemoryProperties.memoryTypes_0 + i);
if ((memoryType.propertyFlags & memoryProperties) == memoryProperties)
{
allocateInfo.memoryTypeIndex = i;
break;
}
}
typeBits >>= 1;
}
NativeMemory = new VkDeviceMemory();
Vortice.Vulkan.Vulkan.vkAllocateMemory(device, &allocateInfo, null, out NativeMemory);
}
public static VkMemoryAllocateInfo memoryAllocateInfo()
{
VkMemoryAllocateInfo memAllocInfo = new VkMemoryAllocateInfo();
memAllocInfo.sType = VkStructureType.MemoryAllocateInfo;
return(memAllocInfo);
}
public ChunkAllocator(VkDevice device, uint memoryTypeIndex, bool persistentMapped)
{
_device = device;
_memoryTypeIndex = memoryTypeIndex;
_persistentMapped = persistentMapped;
_totalMemorySize = persistentMapped ? PersistentMappedChunkSize : UnmappedChunkSize;
VkMemoryAllocateInfo memoryAI = VkMemoryAllocateInfo.New();
memoryAI.allocationSize = _totalMemorySize;
memoryAI.memoryTypeIndex = _memoryTypeIndex;
VkResult result = vkAllocateMemory(_device, ref memoryAI, null, out _memory);
CheckResult(result);
void *mappedPtr = null;
if (persistentMapped)
{
result = vkMapMemory(_device, _memory, 0, _totalMemorySize, 0, &mappedPtr);
CheckResult(result);
}
VkMemoryBlock initialBlock = new VkMemoryBlock(_memory, 0, _totalMemorySize, _memoryTypeIndex, mappedPtr);
_freeBlocks.Add(initialBlock);
}
public void Allocate(uint memoryTypeIndex)
{
if (imageMemoryBind.memory != VkDeviceMemory.Null)
{
return;
}
imageMemoryBind = new VkSparseImageMemoryBind();
var allocInfo = new VkMemoryAllocateInfo();
allocInfo.sType = VkStructureType.MemoryAllocateInfo;
allocInfo.allocationSize = size;
allocInfo.memoryTypeIndex = memoryTypeIndex;
imageMemoryBind.memory = Device.AllocateMemory(ref allocInfo);
// Sparse image memory binding
imageMemoryBind.subresource = new VkImageSubresource
{
aspectMask = VkImageAspectFlags.Color,
mipLevel = mipLevel,
arrayLayer = layer,
};
imageMemoryBind.extent = extent;
imageMemoryBind.offset = offset;
}
private bool TryAllocateDedicated(MemoryRequirements req, MemoryType memoryType)
{
unsafe
{
if (!Device.ExtensionEnabled(VkExtension.KhrDedicatedAllocation))
{
return(false);
}
var dedInfo = new VkMemoryDedicatedAllocateInfoKHR()
{
SType = VkStructureType.MemoryDedicatedAllocateInfoKhr,
PNext = IntPtr.Zero
};
if (!req.DedicatedMemory.Value.SetOwnerOn(ref dedInfo))
{
return(false);
}
var info = new VkMemoryAllocateInfo()
{
SType = VkStructureType.MemoryAllocateInfo,
AllocationSize = req.TypeRequirements.Size,
MemoryTypeIndex = memoryType.TypeIndex,
PNext = new IntPtr(&dedInfo)
};
Handle = Device.Handle.AllocateMemory(&info, Instance.AllocationCallbacks);
if (Handle == VkDeviceMemory.Null)
{
return(false);
}
DedicatedMemoryOwner = req.DedicatedMemory.Value;
Capacity = req.TypeRequirements.Size;
return(true);
}
}
void CreateImage(int width, int height,
VkFormat format, VkImageTiling tiling, VkImageUsageFlags usage, VkMemoryPropertyFlags properties,
out VkImage image, out VkDeviceMemory memory)
{
var info = new VkImageCreateInfo();
info.imageType = VkImageType._2D;
info.extent.width = width;
info.extent.height = height;
info.extent.depth = 1;
info.mipLevels = 1;
info.arrayLayers = 1;
info.format = format;
info.tiling = tiling;
info.initialLayout = VkImageLayout.Undefined;
info.usage = usage;
info.sharingMode = VkSharingMode.Exclusive;
info.samples = VkSampleCountFlags._1_Bit;
image = new VkImage(device, info);
var req = image.Requirements;
var allocInfo = new VkMemoryAllocateInfo();
allocInfo.allocationSize = req.size;
allocInfo.memoryTypeIndex = FindMemoryType(req.memoryTypeBits, properties);
memory = new VkDeviceMemory(device, allocInfo);
image.Bind(memory, 0);
}
protected void allocateMemory()
{
VkMemoryAllocateInfo memInfo = VkMemoryAllocateInfo.New();
memInfo.allocationSize = memReqs.size;
memInfo.memoryTypeIndex = Dev.GetMemoryTypeIndex(memReqs.memoryTypeBits, MemoryFlags);
Utils.CheckResult(vkAllocateMemory(Dev.VkDev, ref memInfo, IntPtr.Zero, out vkMemory));
}
internal unsafe void AllocateOneTimeUploadBuffer(int size, out UploadBuffer uploadBuffer)
{
var bufferCreateInfo = new VkBufferCreateInfo
{
sType = VkStructureType.BufferCreateInfo,
size = (ulong)size,
flags = VkBufferCreateFlags.None,
usage = VkBufferUsageFlags.TransferSrc,
};
uploadBuffer = new UploadBuffer
{
size = size
};
vkCreateBuffer(NativeDevice, &bufferCreateInfo, null, out uploadBuffer.buffer);
// figure out the memory type
if (properType == uint.MaxValue)
{
VkMemoryPropertyFlags memoryProperties = VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent;
vkGetBufferMemoryRequirements(nativeDevice, uploadBuffer.buffer, out var memoryRequirements);
vkGetPhysicalDeviceMemoryProperties(NativePhysicalDevice, out var physicalDeviceMemoryProperties);
var typeBits = memoryRequirements.memoryTypeBits;
for (uint i = 0; i < physicalDeviceMemoryProperties.memoryTypeCount; i++)
{
if ((typeBits & 1) == 1)
{
// Type is available, does it match user properties?
var memoryType = *(&physicalDeviceMemoryProperties.memoryTypes_0 + i);
if ((memoryType.propertyFlags & memoryProperties) == memoryProperties)
{
properType = i;
break;
}
}
typeBits >>= 1;
}
}
var allocateInfo = new VkMemoryAllocateInfo
{
sType = VkStructureType.MemoryAllocateInfo,
allocationSize = (ulong)size,
memoryTypeIndex = properType
};
fixed(VkDeviceMemory *nativeUploadBufferMemoryPtr = &uploadBuffer.memory)
vkAllocateMemory(NativeDevice, &allocateInfo, null, nativeUploadBufferMemoryPtr);
vkBindBufferMemory(NativeDevice, uploadBuffer.buffer, uploadBuffer.memory, 0);
fixed(IntPtr *nativeUploadBufferStartPtr = &uploadBuffer.address)
vkMapMemory(NativeDevice, uploadBuffer.memory, 0, (ulong)size, VkMemoryMapFlags.None, (void **)nativeUploadBufferStartPtr);
}
public override VkResult AllocateMemory(VkMemoryAllocateInfo pAllocateInfo, out VkDeviceMemory pMemory)
{
VkPreconditions.CheckRange(pAllocateInfo.allocationSize, 1, int.MaxValue, nameof(pAllocateInfo.allocationSize));
VkPreconditions.CheckRange(pAllocateInfo.memoryTypeIndex != 0, nameof(pAllocateInfo.memoryTypeIndex));
var ret = new SoftwareDeviceMemory(this, pAllocateInfo);
m_DeviceMemory.Add(ret);
pMemory = ret;
return(VkResult.VK_SUCCESS);
}
protected unsafe void AllocateMemory(VkMemoryPropertyFlags memoryProperties, VkMemoryRequirements memoryRequirements)
{
if (NativeMemory != VkDeviceMemory.Null)
{
return;
}
if (memoryRequirements.size == 0)
{
return;
}
var allocateInfo = new VkMemoryAllocateInfo
{
sType = VkStructureType.MemoryAllocateInfo,
allocationSize = memoryRequirements.size,
};
VkPhysicalDeviceMemoryProperties localProps;
if (!gotProps)
{
gotProps = true;
vkGetPhysicalDeviceMemoryProperties(GraphicsDevice.NativePhysicalDevice, out physicalDeviceMemoryProperties);
}
localProps = physicalDeviceMemoryProperties;
var typeBits = memoryRequirements.memoryTypeBits;
for (uint i = 0; i < localProps.memoryTypeCount; i++)
{
if ((typeBits & 1) == 1)
{
// Type is available, does it match user properties?
var memoryType = *(&localProps.memoryTypes_0 + i);
if ((memoryType.propertyFlags & memoryProperties) == memoryProperties)
{
allocateInfo.memoryTypeIndex = i;
break;
}
}
typeBits >>= 1;
}
var result = vkAllocateMemory(GraphicsDevice.NativeDevice, &allocateInfo, null, out NativeMemory);
if (result != VkResult.Success)
{
string err = "Couldn't allocate memory: " + result + ", NativeMemory: " + NativeMemory + ", type: " + allocateInfo.memoryTypeIndex + ", size: " + memoryRequirements.size;
Xenko.Core.ErrorFileLogger.WriteLogToFile(err);
throw new Exception(err);
}
}
public VkMemoryBlock Allocate(
VkPhysicalDeviceMemoryProperties memProperties,
uint memoryTypeBits,
VkMemoryPropertyFlags flags,
bool persistentMapped,
ulong size,
ulong alignment)
{
lock (_lock)
{
uint memoryTypeIndex = FindMemoryType(memProperties, memoryTypeBits, flags);
ulong minDedicatedAllocationSize = persistentMapped
? MinDedicatedAllocationSizeDynamic
: MinDedicatedAllocationSizeNonDynamic;
if (size >= minDedicatedAllocationSize)
{
VkMemoryAllocateInfo allocateInfo = VkMemoryAllocateInfo.New();
allocateInfo.allocationSize = size;
allocateInfo.memoryTypeIndex = memoryTypeIndex;
VkResult allocationResult = vkAllocateMemory(_device, ref allocateInfo, null, out VkDeviceMemory memory);
if (allocationResult != VkResult.Success)
{
throw new VeldridException("Unable to allocate sufficient Vulkan memory.");
}
void *mappedPtr = null;
if (persistentMapped)
{
VkResult mapResult = vkMapMemory(_device, memory, 0, size, 0, &mappedPtr);
if (mapResult != VkResult.Success)
{
throw new VeldridException("Unable to map newly-allocated Vulkan memory.");
}
}
return(new VkMemoryBlock(memory, 0, size, memoryTypeBits, null, true));
}
else
{
ChunkAllocatorSet allocator = GetAllocator(memoryTypeIndex, persistentMapped);
bool result = allocator.Allocate(size, alignment, out VkMemoryBlock ret);
if (!result)
{
throw new VeldridException("Unable to allocate sufficient Vulkan memory.");
}
return(ret);
}
}
}
void CreateDeviceMemory(ulong allocationSize, uint memoryTypeIndex)
{
var info = new VkMemoryAllocateInfo();
info.sType = VkStructureType.MemoryAllocateInfo;
info.allocationSize = allocationSize;
info.memoryTypeIndex = memoryTypeIndex;
Device.Commands.allocateMemory(Device.Native, ref info, Device.Instance.AllocationCallbacks, out deviceMemory);
Size = allocationSize;
MemoryTypeIndex = memoryTypeIndex;
}
/**
* Create a buffer on the device
*
* @param usageFlags Usage flag bitmask for the buffer (i.e. index, vertex, uniform buffer)
* @param memoryPropertyFlags Memory properties for this buffer (i.e. device local, host visible, coherent)
* @param buffer Pointer to a vk::Vulkan buffer object
* @param size Size of the buffer in byes
* @param data Pointer to the data that should be copied to the buffer after creation (optional, if not set, no data is copied over)
*
* @return Success if buffer handle and memory have been created and (optionally passed) data has been copied
*/
public VkResult createBuffer(VkBufferUsageFlagBits usageFlags, VkMemoryPropertyFlagBits memoryPropertyFlags, vksBuffer buffer, ulong size, void *data = null)
{
buffer.device = _logicalDevice;
// Create the buffer handle
VkBufferCreateInfo bufferCreateInfo = new VkBufferCreateInfo();
bufferCreateInfo.sType = BufferCreateInfo;
bufferCreateInfo.usage = usageFlags;
bufferCreateInfo.size = size;
{
VkBuffer vkBuffer;
vkCreateBuffer(_logicalDevice, &bufferCreateInfo, null, &vkBuffer);
buffer.buffer = vkBuffer;
}
// Create the memory backing up the buffer handle
VkMemoryRequirements memReqs;
VkMemoryAllocateInfo memAlloc = new VkMemoryAllocateInfo();
memAlloc.sType = MemoryAllocateInfo;
vkGetBufferMemoryRequirements(_logicalDevice, buffer.buffer, &memReqs);
memAlloc.allocationSize = memReqs.size;
// Find a memory type index that fits the properties of the buffer
memAlloc.memoryTypeIndex = getMemoryType(memReqs.memoryTypeBits, memoryPropertyFlags);
{
VkDeviceMemory memory;
vkAllocateMemory(_logicalDevice, &memAlloc, null, &memory);
buffer.memory = memory;
}
buffer.alignment = memReqs.alignment;
buffer.size = memAlloc.allocationSize;
buffer.usageFlags = usageFlags;
buffer.memoryPropertyFlags = memoryPropertyFlags;
// If a pointer to the buffer data has been passed, map the buffer and copy over the data
if (data != null)
{
buffer.map();
Unsafe.CopyBlock(buffer.mapped, data, (uint)size);
buffer.unmap();
}
// Initialize a default descriptor that covers the whole buffer size
buffer.setupDescriptor();
// Attach the memory to the buffer object
return(buffer.bind());
}
private VkDeviceMemory CreateVulkanDeviceMemory()
{
_state.ThrowIfDisposedOrDisposing();
VkDeviceMemory vulkanDeviceMemory;
var memoryAllocateInfo = new VkMemoryAllocateInfo {
sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
allocationSize = Size,
memoryTypeIndex = GetMemoryTypeIndex(VulkanGraphicsDevice.VulkanGraphicsAdapter.VulkanPhysicalDevice, CpuAccess),
};
ThrowExternalExceptionIfNotSuccess(nameof(vkAllocateMemory), vkAllocateMemory(VulkanGraphicsDevice.VulkanDevice, &memoryAllocateInfo, pAllocator: null, (ulong *)&vulkanDeviceMemory));
return(vulkanDeviceMemory);
public ChunkAllocator(VkDevice device, uint memoryTypeIndex)
{
_device = device;
_memoryTypeIndex = memoryTypeIndex;
VkMemoryAllocateInfo memoryAI = VkMemoryAllocateInfo.New();
memoryAI.allocationSize = _totalMemorySize;
memoryAI.memoryTypeIndex = _memoryTypeIndex;
VkResult result = vkAllocateMemory(_device, ref memoryAI, null, out _memory);
CheckResult(result);
VkMemoryBlock initialBlock = new VkMemoryBlock(_memory, 0, _totalMemorySize, _memoryTypeIndex);
_freeBlocks.Add(initialBlock);
}
public static VulkanBuffer DynamicUniform <T>(VulkanContext ctx, int count) where T : struct
{
long size = Unsafe.SizeOf <T>() * count;
VkBufferCreateInfo createInfo = new VkBufferCreateInfo
{
sType = VkStructureType.BufferCreateInfo,
pNext = null,
size = (ulong)size,
usage = VkBufferUsageFlags.UniformBuffer
};
VkBuffer buffer;
VkResult result = vkCreateBuffer(ctx.Device, &createInfo, null, out buffer);
result.CheckResult();
VkMemoryRequirements memoryRequirements;
vkGetBufferMemoryRequirements(ctx.Device, buffer, out memoryRequirements);
vkGetPhysicalDeviceMemoryProperties(ctx.PhysicalDevice, out VkPhysicalDeviceMemoryProperties memoryProperties);
uint memoryTypeIndex = BufferHelper.GetMemoryTypeIndex(memoryRequirements.memoryTypeBits, VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent, memoryProperties);
// We require host visible memory so we can map it and write to it directly.
// We require host coherent memory so that writes are visible to the GPU right after unmapping it.
VkMemoryAllocateInfo memAllocInfo = new VkMemoryAllocateInfo()
{
sType = VkStructureType.MemoryAllocateInfo,
pNext = null,
allocationSize = memoryRequirements.size,
memoryTypeIndex = memoryTypeIndex
};
VkDeviceMemory memory;
result = vkAllocateMemory(ctx.Device, &memAllocInfo, null, &memory);
result.CheckResult();
result = vkBindBufferMemory(ctx.Device, buffer, memory, 0);
result.CheckResult();
return(new VulkanBuffer(ctx.Device, ctx.GraphicsCommandPool, buffer, memory, count));
}
private void Setup()
{
disposed = false;
VkImageCreateInfo image = VkImageCreateInfo.New();
image.imageType = VkImageType.Image2D;
image.format = device.DepthFormat;
image.extent = new VkExtent3D()
{
width = swapchain.width, height = swapchain.height, depth = 1
};
image.mipLevels = 1;
image.arrayLayers = 1;
image.samples = VkSampleCountFlags.Count1;
image.tiling = VkImageTiling.Optimal;
image.usage = (VkImageUsageFlags.DepthStencilAttachment | VkImageUsageFlags.TransferSrc);
image.flags = 0;
VkMemoryAllocateInfo mem_alloc = VkMemoryAllocateInfo.New();
mem_alloc.allocationSize = 0;
mem_alloc.memoryTypeIndex = 0;
VkImageViewCreateInfo depthStencilView = VkImageViewCreateInfo.New();
depthStencilView.viewType = VkImageViewType.Image2D;
depthStencilView.format = device.DepthFormat;
depthStencilView.flags = 0;
depthStencilView.subresourceRange = new VkImageSubresourceRange();
depthStencilView.subresourceRange.aspectMask = (VkImageAspectFlags.Depth | VkImageAspectFlags.Stencil);
depthStencilView.subresourceRange.baseMipLevel = 0;
depthStencilView.subresourceRange.levelCount = 1;
depthStencilView.subresourceRange.baseArrayLayer = 0;
depthStencilView.subresourceRange.layerCount = 1;
Util.CheckResult(vkCreateImage(device.device, &image, null, out vkImage));
vkGetImageMemoryRequirements(device.device, vkImage, out VkMemoryRequirements memReqs);
mem_alloc.allocationSize = memReqs.size;
mem_alloc.memoryTypeIndex = device.vulkanDevice.getMemoryType(memReqs.memoryTypeBits, VkMemoryPropertyFlags.DeviceLocal);
Util.CheckResult(vkAllocateMemory(device.device, &mem_alloc, null, out vkMem));
Util.CheckResult(vkBindImageMemory(device.device, vkImage, vkMem, 0));
depthStencilView.image = vkImage;
Util.CheckResult(vkCreateImageView(device.device, ref depthStencilView, null, out vkView));
}
/**
* Create a buffer on the device
*
* @param usageFlags Usage flag bitmask for the buffer (i.e. index, vertex, uniform buffer)
* @param memoryPropertyFlags Memory properties for this buffer (i.e. device local, host visible, coherent)
* @param size Size of the buffer in byes
* @param buffer Pointer to the buffer handle acquired by the function
* @param memory Pointer to the memory handle acquired by the function
* @param data Pointer to the data that should be copied to the buffer after creation (optional, if not set, no data is copied over)
*
* @return Success if buffer handle and memory have been created and (optionally passed) data has been copied
*/
public VkResult createBuffer(VkBufferUsageFlagBits usageFlags, VkMemoryPropertyFlagBits memoryPropertyFlags, ulong size, VkBuffer *buffer, VkDeviceMemory *memory, void *data = null)
{
// Create the buffer handle
VkBufferCreateInfo bufferCreateInfo = new VkBufferCreateInfo();
bufferCreateInfo.sType = BufferCreateInfo;
bufferCreateInfo.usage = usageFlags;
bufferCreateInfo.size = size;
bufferCreateInfo.sharingMode = VkSharingMode.Exclusive;
vkCreateBuffer(LogicalDevice, &bufferCreateInfo, null, buffer);
// Create the memory backing up the buffer handle
VkMemoryRequirements memReqs;
VkMemoryAllocateInfo memAlloc = new VkMemoryAllocateInfo();
memAlloc.sType = MemoryAllocateInfo;
vkGetBufferMemoryRequirements(LogicalDevice, *buffer, &memReqs);
memAlloc.allocationSize = memReqs.size;
// Find a memory type index that fits the properties of the buffer
memAlloc.memoryTypeIndex = getMemoryType(memReqs.memoryTypeBits, memoryPropertyFlags);
vkAllocateMemory(LogicalDevice, &memAlloc, null, memory);
// If a pointer to the buffer data has been passed, map the buffer and copy over the data
if (data != null)
{
IntPtr mapped;
vkMapMemory(LogicalDevice, *memory, 0, size, 0, &mapped);
Unsafe.CopyBlock(mapped, data, (uint)size);
// If host coherency hasn't been requested, do a manual flush to make writes visible
if ((memoryPropertyFlags & VkMemoryPropertyFlagBits.HostCoherent) == 0)
{
VkMappedMemoryRange mappedRange = new VkMappedMemoryRange();
mappedRange.memory = *memory;
mappedRange.offset = 0;
mappedRange.size = size;
vkFlushMappedMemoryRanges(LogicalDevice, 1, &mappedRange);
}
vkUnmapMemory(LogicalDevice, *memory);
}
// Attach the memory to the buffer object
vkBindBufferMemory(LogicalDevice, *buffer, *memory, 0);
return(VkResult.Success);
}
void CreateBuffer(long size, VkBufferUsageFlags usage, VkMemoryPropertyFlags properties, out VkBuffer buffer, out VkDeviceMemory memory)
{
var info = new VkBufferCreateInfo();
info.size = size;
info.usage = usage;
info.sharingMode = VkSharingMode.Exclusive;
buffer = new VkBuffer(device, info);
var allocInfo = new VkMemoryAllocateInfo();
allocInfo.allocationSize = buffer.Requirements.size;
allocInfo.memoryTypeIndex = FindMemoryType(buffer.Requirements.memoryTypeBits, properties);
memory = new VkDeviceMemory(device, allocInfo);
buffer.Bind(memory, 0);
}
protected virtual void SetupDepthStencil()
{
VkImageCreateInfo image = VkImageCreateInfo.New();
image.imageType = VkImageType._2d;
image.format = DepthFormat;
image.extent = new VkExtent3D()
{
width = Width, height = Height, depth = 1
};
image.mipLevels = 1;
image.arrayLayers = 1;
image.samples = VkSampleCountFlags._1;
image.tiling = VkImageTiling.Optimal;
image.usage = (VkImageUsageFlags.DepthStencilAttachment | VkImageUsageFlags.TransferSrc);
image.flags = 0;
VkMemoryAllocateInfo mem_alloc = VkMemoryAllocateInfo.New();
mem_alloc.allocationSize = 0;
mem_alloc.memoryTypeIndex = 0;
VkImageViewCreateInfo depthStencilView = VkImageViewCreateInfo.New();
depthStencilView.viewType = VkImageViewType._2d;
depthStencilView.format = DepthFormat;
depthStencilView.flags = 0;
depthStencilView.subresourceRange = new VkImageSubresourceRange();
depthStencilView.subresourceRange.aspectMask = (VkImageAspectFlags.Depth | VkImageAspectFlags.Stencil);
depthStencilView.subresourceRange.baseMipLevel = 0;
depthStencilView.subresourceRange.levelCount = 1;
depthStencilView.subresourceRange.baseArrayLayer = 0;
depthStencilView.subresourceRange.layerCount = 1;
Util.CheckResult(vkCreateImage(Device, &image, null, out DepthStencil.Image));
vkGetImageMemoryRequirements(Device, DepthStencil.Image, out VkMemoryRequirements memReqs);
mem_alloc.allocationSize = memReqs.size;
mem_alloc.memoryTypeIndex = VulkanDevice.GetMemoryType(memReqs.memoryTypeBits, VkMemoryPropertyFlags.DeviceLocal);
Util.CheckResult(vkAllocateMemory(Device, &mem_alloc, null, out DepthStencil.Mem));
Util.CheckResult(vkBindImageMemory(Device, DepthStencil.Image, DepthStencil.Mem, 0));
depthStencilView.image = DepthStencil.Image;
Util.CheckResult(vkCreateImageView(Device, ref depthStencilView, null, out DepthStencil.View));
}
private void CreateDepthImage(VkPhysicalDevice physicalDevice, uint width, uint height)
{
VkImageCreateInfo createInfo = VkImageCreateInfo.New();
createInfo.imageType = VkImageType.Image2D;
createInfo.extent.width = width;
createInfo.extent.height = height;
createInfo.extent.depth = 1;
createInfo.mipLevels = 1;
createInfo.arrayLayers = 1;
createInfo.format = VkFormat.D32Sfloat;
createInfo.tiling = VkImageTiling.Optimal;
createInfo.initialLayout = VkImageLayout.Undefined;
createInfo.usage = VkImageUsageFlags.DepthStencilAttachment;
createInfo.sharingMode = VkSharingMode.Exclusive;
createInfo.samples = VkSampleCountFlags.Count1;
VkImage depthImage;
Assert(vkCreateImage(device, &createInfo, null, &depthImage));
VkMemoryRequirements memoryRequirements;
vkGetImageMemoryRequirements(device, depthImage, &memoryRequirements);
VkPhysicalDeviceMemoryProperties memoryProperties = new VkPhysicalDeviceMemoryProperties();
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memoryProperties);
VkMemoryAllocateInfo allocateInfo = VkMemoryAllocateInfo.New();
allocateInfo.allocationSize = memoryRequirements.size;
allocateInfo.memoryTypeIndex = FDataBuffer <byte> .SelectMemoryType(memoryProperties, memoryRequirements.memoryTypeBits,
VkMemoryPropertyFlags.DeviceLocal);
VkDeviceMemory depthImageMemory;
Assert(vkAllocateMemory(device, &allocateInfo, null, &depthImageMemory));
vkBindImageMemory(device, depthImage, depthImageMemory, 0);
this.depthImage = depthImage;
this.depthImageMemory = depthImageMemory;
}
private VkDeviceMemory CreateVulkanDeviceMemory()
{
ThrowIfDisposedOrDisposing(_state, nameof(VulkanGraphicsMemoryBlock));
VkDeviceMemory vulkanDeviceMemory;
var collection = Collection;
var vulkanDevice = collection.Allocator.Device.VulkanDevice;
var memoryAllocateInfo = new VkMemoryAllocateInfo {
sType = VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO,
allocationSize = Size,
memoryTypeIndex = collection.VulkanMemoryTypeIndex,
};
ThrowExternalExceptionIfNotSuccess(vkAllocateMemory(vulkanDevice, &memoryAllocateInfo, pAllocator: null, (ulong *)&vulkanDeviceMemory), nameof(vkAllocateMemory));
return(vulkanDeviceMemory);
}
internal VkResult AllocateDeviceMemory()
{
VkMemoryAllocateInfo info = VkMemoryAllocateInfo.New();
info.allocationSize = max_size;
info.memoryTypeIndex = memoryTypeIndex;
VkResult result = vkAllocateMemory(device.device, &info, null, out vkDeviceMemory);
if (result != VkResult.Success)
{
return(result);
}
if ((memoryPropertyFlags & VkMemoryPropertyFlags.HostVisible) != 0)
{
Map();
}
return(result);
}
protected unsafe void AllocateMemory(VkMemoryPropertyFlags memoryProperties, VkMemoryRequirements memoryRequirements)
{
if (NativeMemory != VkDeviceMemory.Null)
{
return;
}
if (memoryRequirements.size == 0)
{
return;
}
var allocateInfo = new VkMemoryAllocateInfo
{
sType = VkStructureType.MemoryAllocateInfo,
allocationSize = memoryRequirements.size,
};
vkGetPhysicalDeviceMemoryProperties(GraphicsDevice.NativePhysicalDevice, out var physicalDeviceMemoryProperties);
var typeBits = memoryRequirements.memoryTypeBits;
for (uint i = 0; i < physicalDeviceMemoryProperties.memoryTypeCount; i++)
{
if ((typeBits & 1) == 1)
{
// Type is available, does it match user properties?
var memoryType = *(&physicalDeviceMemoryProperties.memoryTypes_0 + i);
if ((memoryType.propertyFlags & memoryProperties) == memoryProperties)
{
allocateInfo.memoryTypeIndex = i;
break;
}
}
typeBits >>= 1;
}
fixed(VkDeviceMemory *nativeMemoryPtr = &NativeMemory)
vkAllocateMemory(GraphicsDevice.NativeDevice, &allocateInfo, null, nativeMemoryPtr);
}
public FDataBuffer(VkDevice device, VkPhysicalDevice physicalDevice, int length, VkBufferUsageFlags usage, VkSharingMode sharingMode)
{
this.device = device;
VkBufferCreateInfo createInfo = VkBufferCreateInfo.New();
size = (ulong)(sizeof(T) * length);
createInfo.size = size;
createInfo.usage = usage;
createInfo.sharingMode = sharingMode;
VkBuffer buffer = VkBuffer.Null;
Assert(vkCreateBuffer(device, &createInfo, null, &buffer));
this.Buffer = buffer;
VkMemoryRequirements memoryRequirements = new VkMemoryRequirements();
vkGetBufferMemoryRequirements(device, this.Buffer, &memoryRequirements);
VkPhysicalDeviceMemoryProperties memoryProperties = new VkPhysicalDeviceMemoryProperties();
vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memoryProperties);
VkMemoryAllocateInfo allocateInfo = VkMemoryAllocateInfo.New();
allocateInfo.allocationSize = memoryRequirements.size;
allocateInfo.memoryTypeIndex = SelectMemoryType(memoryProperties, memoryRequirements.memoryTypeBits,
VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent);
VkDeviceMemory memory = new VkDeviceMemory();
Assert(vkAllocateMemory(device, &allocateInfo, null, &memory));
Memory = memory;
Assert(vkBindBufferMemory(device, this.Buffer, memory, 0));
spanLength = length;
}
private void createVertexBuffer()
{
VkBufferCreateInfo bufferInfo = new VkBufferCreateInfo();
bufferInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO;
bufferInfo.size = Marshal.SizeOf(vertices[0]) * vertices.Length;
bufferInfo.usage = VkBufferUsageFlagBits.VK_BUFFER_USAGE_VERTEX_BUFFER_BIT;
bufferInfo.sharingMode = VkSharingMode.VK_SHARING_MODE_EXCLUSIVE;
VkResult result = Vulkan.vkCreateBuffer(device, bufferInfo, null, out vertexBuffer);
if (result != VkResult.VK_SUCCESS)
{
throw Program.Throw("failed to create vertex buffer!", result);
}
VkMemoryRequirements memRequirements;
Vulkan.vkGetBufferMemoryRequirements(device, vertexBuffer, out memRequirements);
VkMemoryAllocateInfo allocInfo = new VkMemoryAllocateInfo();
allocInfo.sType = VkStructureType.VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO;
allocInfo.allocationSize = memRequirements.size;
allocInfo.memoryTypeIndex = findMemoryType(memRequirements.memoryTypeBits, VkMemoryPropertyFlagBits.VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VkMemoryPropertyFlagBits.VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
result = Vulkan.vkAllocateMemory(device, allocInfo, null, out vertexBufferMemory);
if (result != VkResult.VK_SUCCESS)
{
throw Program.Throw("failed to allocate vertex buffer memory!", result);
}
Vulkan.vkBindBufferMemory(device, vertexBuffer, vertexBufferMemory, 0);
byte[] data;
Vulkan.vkMapMemory(device, vertexBufferMemory, 0, bufferInfo.size, 0, out data);
MemoryCopyHelper.Copy(vertices, data, 0, bufferInfo.size);
Vulkan.vkUnmapMemory(device, vertexBufferMemory);
}
private bool TryAllocateNormal(ulong capacity, MemoryType memoryType)
{
unsafe
{
var info = new VkMemoryAllocateInfo()
{
SType = VkStructureType.MemoryAllocateInfo,
AllocationSize = capacity,
MemoryTypeIndex = memoryType.TypeIndex,
PNext = IntPtr.Zero
};
Handle = Device.Handle.AllocateMemory(&info, Instance.AllocationCallbacks);
}
if (Handle == VkDeviceMemory.Null)
{
return(false);
}
DedicatedMemoryOwner = null;
Capacity = capacity;
return(true);
}
protected unsafe void AllocateMemory(VkMemoryPropertyFlags memoryProperties)
{
vkGetBufferMemoryRequirements(nativeDevice, nativeUploadBuffer, out var memoryRequirements);
if (memoryRequirements.size == 0)
{
return;
}
var allocateInfo = new VkMemoryAllocateInfo
{
sType = VkStructureType.MemoryAllocateInfo,
allocationSize = memoryRequirements.size,
};
vkGetPhysicalDeviceMemoryProperties(NativePhysicalDevice, out var physicalDeviceMemoryProperties);
var typeBits = memoryRequirements.memoryTypeBits;
for (uint i = 0; i < physicalDeviceMemoryProperties.memoryTypeCount; i++)
{
if ((typeBits & 1) == 1)
{
// Type is available, does it match user properties?
var memoryType = *(&physicalDeviceMemoryProperties.memoryTypes_0 + i);
if ((memoryType.propertyFlags & memoryProperties) == memoryProperties)
{
allocateInfo.memoryTypeIndex = i;
break;
}
}
typeBits >>= 1;
}
vkAllocateMemory(NativeDevice, &allocateInfo, null, out nativeUploadBufferMemory);
vkBindBufferMemory(NativeDevice, nativeUploadBuffer, nativeUploadBufferMemory, 0);
}
VkBuffer CreateBuffer(VkPhysicalDevice physicalDevice, VkDevice device, object values, VkBufferUsageFlagBits usageFlags, System.Type type)
{
var array = values as System.Array;
var length = (array != null) ? array.Length : 1;
var size = System.Runtime.InteropServices.Marshal.SizeOf(type) * length;
VkBuffer buffer;
{
UInt32 index = 0;
var info = new VkBufferCreateInfo {
sType = VkStructureType.BufferCreateInfo
};
info.size = (UInt64)size;
info.usage = usageFlags;
info.sharingMode = VkSharingMode.Exclusive;
info.queueFamilyIndices = index;
//VkBuffer buffer = device.CreateBuffer(ref info);
vkAPI.vkCreateBuffer(device, &info, null, &buffer).Check();
info.Free();
}
VkDeviceMemory deviceMemory; // = device.AllocateMemory(ref allocInfo);
VkMemoryRequirements memoryReq;
//VkMemoryRequirements memoryReq = device.GetBufferMemoryRequirements(buffer);
vkAPI.vkGetBufferMemoryRequirements(device, buffer, &memoryReq);
var allocInfo = new VkMemoryAllocateInfo {
sType = VkStructureType.MemoryAllocateInfo
};
{
allocInfo.allocationSize = memoryReq.size;
VkPhysicalDeviceMemoryProperties memoryProperties;
vkAPI.vkGetPhysicalDeviceMemoryProperties(physicalDevice, &memoryProperties);
allocInfo.memoryTypeIndex = GetMemoryTypeIndex(memoryProperties, memoryReq,
VkMemoryPropertyFlagBits.HostVisible | VkMemoryPropertyFlagBits.HostCoherent);
vkAPI.vkAllocateMemory(device, &allocInfo, null, &deviceMemory).Check();
}
{
IntPtr memPtr = IntPtr.Zero;
vkAPI.vkMapMemory(device, deviceMemory, 0, (UInt64)size, 0, &memPtr).Check();
if (type == typeof(float))
{
System.Runtime.InteropServices.Marshal.Copy(values as float[], 0, memPtr, length);
}
else if (type == typeof(short))
{
System.Runtime.InteropServices.Marshal.Copy(values as short[], 0, memPtr, length);
}
else if (type == typeof(AreaUniformBuffer))
{
System.Runtime.InteropServices.Marshal.StructureToPtr(values, memPtr, false);
this.vkBuffer = buffer;
this.vkDeviceMemory = deviceMemory;
this.uniformSize = memoryReq.size;
}
vkAPI.vkUnmapMemory(device, deviceMemory);
}
vkAPI.vkBindBufferMemory(device, buffer, deviceMemory, 0).Check();
return(buffer);
}
/**
* Load a 2D texture including all mip levels
*
* @param filename File to load (supports .ktx and .dds)
* @param format Vulkan format of the image data stored in the file
* @param device Vulkan device to create the texture on
* @param copyQueue Queue used for the texture staging copy commands (must support transfer)
* @param (Optional) imageUsageFlags Usage flags for the texture's image (defaults to VK_IMAGE_USAGE_SAMPLED_BIT)
* @param (Optional) imageLayout Usage layout for the texture (defaults VK_IMAGE_LAYOUT_SHADER_READ_ONLY_OPTIMAL)
* @param (Optional) forceLinear Force linear tiling (not advised, defaults to false)
*
*/
public void loadFromFile(
string filename,
VkFormat format,
vksVulkanDevice device,
VkQueue copyQueue,
VkImageUsageFlagBits imageUsageFlags = VkImageUsageFlagBits.Sampled,
VkImageLayout imageLayout = VkImageLayout.ShaderReadOnlyOptimal,
bool forceLinear = false)
{
KtxFile tex2D;
using (var fs = File.OpenRead(filename)) {
tex2D = KtxFile.Load(fs, false);
}
this.device = device;
width = tex2D.Header.PixelWidth;
height = tex2D.Header.PixelHeight;
if (height == 0)
{
height = width;
}
mipLevels = tex2D.Header.NumberOfMipmapLevels;
// Get device properites for the requested texture format
VkFormatProperties formatProperties;
vkGetPhysicalDeviceFormatProperties(device.PhysicalDevice, format, &formatProperties);
// Only use linear tiling if requested (and supported by the device)
// Support for linear tiling is mostly limited, so prefer to use
// optimal tiling instead
// On most implementations linear tiling will only support a very
// limited amount of formats and features (mip maps, cubemaps, arrays, etc.)
bool useStaging = !forceLinear;
VkMemoryAllocateInfo memAllocInfo = new VkMemoryAllocateInfo();
memAllocInfo.sType = MemoryAllocateInfo;
VkMemoryRequirements memReqs;
// Use a separate command buffer for texture loading
VkCommandBuffer copyCmd = device.createCommandBuffer(VkCommandBufferLevel.Primary, true);
if (useStaging)
{
// Create a host-visible staging buffer that contains the raw image data
VkBuffer stagingBuffer;
VkDeviceMemory stagingMemory;
VkBufferCreateInfo bufferCreateInfo = new VkBufferCreateInfo();
bufferCreateInfo.sType = BufferCreateInfo;
bufferCreateInfo.size = tex2D.GetTotalSize();
// This buffer is used as a transfer source for the buffer copy
bufferCreateInfo.usage = VkBufferUsageFlagBits.TransferSrc;
bufferCreateInfo.sharingMode = VkSharingMode.Exclusive;
vkCreateBuffer(device.LogicalDevice, &bufferCreateInfo, null, &stagingBuffer);
// Get memory requirements for the staging buffer (alignment, memory type bits)
vkGetBufferMemoryRequirements(device.LogicalDevice, stagingBuffer, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
// Get memory type index for a host visible buffer
memAllocInfo.memoryTypeIndex = device.getMemoryType(memReqs.memoryTypeBits,
VkMemoryPropertyFlagBits.HostVisible | VkMemoryPropertyFlagBits.HostCoherent);
vkAllocateMemory(device.LogicalDevice, &memAllocInfo, null, &stagingMemory);
vkBindBufferMemory(device.LogicalDevice, stagingBuffer, stagingMemory, 0);
// Copy texture data into staging buffer
IntPtr data;
vkMapMemory(device.LogicalDevice, stagingMemory, 0, memReqs.size, 0, &data);
byte[] pixelData = tex2D.GetAllTextureData();
fixed(byte *pixelDataPtr = &pixelData[0])
{
Unsafe.CopyBlock(data, pixelDataPtr, (uint)pixelData.Length);
}
vkUnmapMemory(device.LogicalDevice, stagingMemory);
// Setup buffer copy regions for each mip level
var bufferCopyRegions = new List <VkBufferImageCopy>();
uint offset = 0;
for (uint i = 0; i < mipLevels; i++)
{
VkBufferImageCopy bufferCopyRegion = new VkBufferImageCopy();
bufferCopyRegion.imageSubresource.aspectMask = VkImageAspectFlagBits.Color;
bufferCopyRegion.imageSubresource.mipLevel = i;
bufferCopyRegion.imageSubresource.baseArrayLayer = 0;
bufferCopyRegion.imageSubresource.layerCount = 1;
bufferCopyRegion.imageExtent.width = tex2D.Faces[0].Mipmaps[i].Width;
bufferCopyRegion.imageExtent.height = tex2D.Faces[0].Mipmaps[i].Height;
bufferCopyRegion.imageExtent.depth = 1;
bufferCopyRegion.bufferOffset = offset;
bufferCopyRegions.Add(bufferCopyRegion);
offset += tex2D.Faces[0].Mipmaps[i].SizeInBytes;
}
// Create optimal tiled target image
VkImageCreateInfo imageCreateInfo = new VkImageCreateInfo();
imageCreateInfo.sType = ImageCreateInfo;
imageCreateInfo.imageType = VkImageType._2d;
imageCreateInfo.format = format;
imageCreateInfo.mipLevels = mipLevels;
imageCreateInfo.arrayLayers = 1;
imageCreateInfo.samples = VkSampleCountFlagBits._1;
imageCreateInfo.tiling = VkImageTiling.Optimal;
imageCreateInfo.sharingMode = VkSharingMode.Exclusive;
imageCreateInfo.initialLayout = VkImageLayout.Undefined;
imageCreateInfo.extent = new VkExtent3D {
width = width, height = height, depth = 1
};
imageCreateInfo.usage = imageUsageFlags;
// Ensure that the TRANSFER_DST bit is set for staging
if ((imageCreateInfo.usage & VkImageUsageFlagBits.TransferDst) == 0)
{
imageCreateInfo.usage |= VkImageUsageFlagBits.TransferDst;
}
{
VkImage vkImage;
vkCreateImage(device.LogicalDevice, &imageCreateInfo, null, &vkImage);
this.image = vkImage;
}
vkGetImageMemoryRequirements(device.LogicalDevice, image, &memReqs);
memAllocInfo.allocationSize = memReqs.size;
memAllocInfo.memoryTypeIndex = device.getMemoryType(memReqs.memoryTypeBits,
VkMemoryPropertyFlagBits.DeviceLocal);
{
VkDeviceMemory memory;
vkAllocateMemory(device.LogicalDevice, &memAllocInfo, null, &memory);
this.deviceMemory = memory;
}
vkBindImageMemory(device.LogicalDevice, image, deviceMemory, 0);
VkImageSubresourceRange subresourceRange = new VkImageSubresourceRange();
subresourceRange.aspectMask = VkImageAspectFlagBits.Color;
subresourceRange.baseMipLevel = 0;
subresourceRange.levelCount = mipLevels;
subresourceRange.layerCount = 1;
// Image barrier for optimal image (target)
// Optimal image will be used as destination for the copy
Tools.setImageLayout(
copyCmd,
image,
VkImageAspectFlagBits.Color,
VkImageLayout.Undefined,
VkImageLayout.TransferDstOptimal,
subresourceRange);
// Copy mip levels from staging buffer
fixed(VkBufferImageCopy *pointer = bufferCopyRegions.ToArray())
{
vkCmdCopyBufferToImage(
copyCmd,
stagingBuffer,
image,
VkImageLayout.TransferDstOptimal,
(UInt32)bufferCopyRegions.Count,
pointer);
}
// Change texture image layout to shader read after all mip levels have been copied
this.imageLayout = imageLayout;
Tools.setImageLayout(
copyCmd,
image,
VkImageAspectFlagBits.Color,
VkImageLayout.TransferDstOptimal,
imageLayout,
subresourceRange);
device.flushCommandBuffer(copyCmd, copyQueue);
// Clean up staging resources
vkFreeMemory(device.LogicalDevice, stagingMemory, null);
vkDestroyBuffer(device.LogicalDevice, stagingBuffer, null);
}
else
{
throw new NotImplementedException();
/*
* // Prefer using optimal tiling, as linear tiling
* // may support only a small set of features
* // depending on implementation (e.g. no mip maps, only one layer, etc.)
*
* // Check if this support is supported for linear tiling
* Debug.Assert((formatProperties.linearTilingFeatures & VkFormatFeatureFlags.SampledImage) != 0);
*
* VkImage mappableImage;
* VkDeviceMemory mappableMemory;
*
* VkImageCreateInfo imageCreateInfo = Initializers.imageCreateInfo();
* imageCreateInfo.imageType = VkImageType._2d;
* imageCreateInfo.format = format;
* imageCreateInfo.extent = new VkExtent3D { width = width, height = height, depth = 1 };
* imageCreateInfo.mipLevels = 1;
* imageCreateInfo.arrayLayers = 1;
* imageCreateInfo.samples = VkSampleCountFlags._1;
* imageCreateInfo.tiling = VkImageTiling.Linear;
* imageCreateInfo.usage = imageUsageFlags;
* imageCreateInfo.sharingMode = VkSharingMode.Exclusive;
* imageCreateInfo.initialLayout = VkImageLayout.Undefined;
*
* // Load mip map level 0 to linear tiling image
* Util.CheckResult(vkCreateImage(device.LogicalDevice, &imageCreateInfo, null, &mappableImage));
*
* // Get memory requirements for this image
* // like size and alignment
* vkGetImageMemoryRequirements(device.LogicalDevice, mappableImage, &memReqs);
* // Set memory allocation size to required memory size
* memAllocInfo.allocationSize = memReqs.size;
*
* // Get memory type that can be mapped to host memory
* memAllocInfo.memoryTypeIndex = device.GetMemoryType(memReqs.memoryTypeBits, VkMemoryPropertyFlags.HostVisible | VkMemoryPropertyFlags.HostCoherent);
*
* // Allocate host memory
* Util.CheckResult(vkAllocateMemory(device.LogicalDevice, &memAllocInfo, null, &mappableMemory));
*
* // Bind allocated image for use
* Util.CheckResult(vkBindImageMemory(device.LogicalDevice, mappableImage, mappableMemory, 0));
*
* // Get sub resource layout
* // Mip map count, array layer, etc.
* VkImageSubresource subRes = new VkImageSubresource();
* subRes.aspectMask = VkImageAspectFlags.Color;
* subRes.mipLevel = 0;
*
* VkSubresourceLayout subResLayout;
* void* data;
*
* // Get sub resources layout
* // Includes row pitch, size offsets, etc.
* vkGetImageSubresourceLayout(device.LogicalDevice, mappableImage, &subRes, &subResLayout);
*
* // Map image memory
* Util.CheckResult(vkMapMemory(device.LogicalDevice, mappableMemory, 0, memReqs.size, 0, &data));
*
* // Copy image data into memory
* memcpy(data, tex2D[subRes.mipLevel].data(), tex2D[subRes.mipLevel].size());
*
* vkUnmapMemory(device.LogicalDevice, mappableMemory);
*
* // Linear tiled images don't need to be staged
* // and can be directly used as textures
* image = mappableImage;
* deviceMemory = mappableMemory;
* imageLayout = imageLayout;
*
* // Setup image memory barrier
* vks::tools::setImageLayout(copyCmd, image, VkImageAspectFlags.Color, VkImageLayout.Undefined, imageLayout);
*
* device.flushCommandBuffer(copyCmd, copyQueue);
*/
}
// Create a defaultsampler
VkSamplerCreateInfo samplerCreateInfo = new VkSamplerCreateInfo();
samplerCreateInfo.sType = SamplerCreateInfo;
samplerCreateInfo.magFilter = VkFilter.Linear;
samplerCreateInfo.minFilter = VkFilter.Linear;
samplerCreateInfo.mipmapMode = VkSamplerMipmapMode.Linear;
samplerCreateInfo.addressModeU = VkSamplerAddressMode.Repeat;
samplerCreateInfo.addressModeV = VkSamplerAddressMode.Repeat;
samplerCreateInfo.addressModeW = VkSamplerAddressMode.Repeat;
samplerCreateInfo.mipLodBias = 0.0f;
samplerCreateInfo.compareOp = VkCompareOp.Never;
samplerCreateInfo.minLod = 0.0f;
// Max level-of-detail should match mip level count
samplerCreateInfo.maxLod = (useStaging) ? (float)mipLevels : 0.0f;
// Enable anisotropic filtering
samplerCreateInfo.maxAnisotropy = 8;
samplerCreateInfo.anisotropyEnable = true;
samplerCreateInfo.borderColor = VkBorderColor.FloatOpaqueWhite;
{
VkSampler vkSampler;
vkCreateSampler(device.LogicalDevice, &samplerCreateInfo, null, &vkSampler);
this.sampler = vkSampler;
}
// Create image view
// Textures are not directly accessed by the shaders and
// are abstracted by image views containing additional
// information and sub resource ranges
VkImageViewCreateInfo viewCreateInfo = new VkImageViewCreateInfo();
viewCreateInfo.sType = ImageViewCreateInfo;
viewCreateInfo.viewType = VkImageViewType._2d;
viewCreateInfo.format = format;
viewCreateInfo.components = new VkComponentMapping {
r = VkComponentSwizzle.R,
g = VkComponentSwizzle.G,
b = VkComponentSwizzle.B,
a = VkComponentSwizzle.A
};
viewCreateInfo.subresourceRange = new VkImageSubresourceRange {
aspectMask = VkImageAspectFlagBits.Color,
baseMipLevel = 0, levelCount = 1, baseArrayLayer = 0, layerCount = 1
};
// Linear tiling usually won't support mip maps
// Only set mip map count if optimal tiling is used
viewCreateInfo.subresourceRange.levelCount = (useStaging) ? mipLevels : 1;
viewCreateInfo.image = image;
{
VkImageView vkImageView;
vkCreateImageView(device.LogicalDevice, &viewCreateInfo, null, &vkImageView);
this.view = vkImageView;
}
// Update descriptor image info member that can be used for setting up descriptor sets
updateDescriptor();
}