public static unsafe void InsertBufferBarrier(
VulkanRenderer gd,
CommandBuffer commandBuffer,
VkBuffer buffer,
AccessFlags srcAccessMask,
AccessFlags dstAccessMask,
PipelineStageFlags srcStageMask,
PipelineStageFlags dstStageMask,
int offset,
int size)
{
BufferMemoryBarrier memoryBarrier = new BufferMemoryBarrier()
{
SType = StructureType.BufferMemoryBarrier,
SrcAccessMask = srcAccessMask,
DstAccessMask = dstAccessMask,
SrcQueueFamilyIndex = Vk.QueueFamilyIgnored,
DstQueueFamilyIndex = Vk.QueueFamilyIgnored,
Buffer = buffer,
Offset = (ulong)offset,
Size = (ulong)size
};
gd.Api.CmdPipelineBarrier(
commandBuffer,
srcStageMask,
dstStageMask,
0,
0,
null,
1,
memoryBarrier,
0,
null);
}
private void CopyFromOrToBuffer(
CommandBuffer commandBuffer,
VkBuffer buffer,
Image image,
int size,
bool to,
int x,
int y,
int width,
int height)
{
var aspectFlags = Info.Format.ConvertAspectFlags();
if (aspectFlags == (ImageAspectFlags.ImageAspectDepthBit | ImageAspectFlags.ImageAspectStencilBit))
{
aspectFlags = ImageAspectFlags.ImageAspectDepthBit;
}
var sl = new ImageSubresourceLayers(aspectFlags, (uint)FirstLevel, (uint)FirstLayer, 1);
var extent = new Extent3D((uint)width, (uint)height, 1);
var region = new BufferImageCopy(0, (uint)width, (uint)height, sl, new Offset3D(x, y, 0), extent);
if (to)
{
_gd.Api.CmdCopyImageToBuffer(commandBuffer, image, ImageLayout.General, buffer, 1, region);
}
else
{
_gd.Api.CmdCopyBufferToImage(commandBuffer, buffer, image, ImageLayout.General, 1, region);
}
}
public BufferHolder(VulkanRenderer gd, Device device, VkBuffer buffer, MemoryAllocation allocation, int size)
{
_gd = gd;
_device = device;
_allocation = allocation;
_allocationAuto = new Auto <MemoryAllocation>(allocation);
_waitable = new MultiFenceHolder(size);
_buffer = new Auto <DisposableBuffer>(new DisposableBuffer(gd.Api, device, buffer), _waitable, _allocationAuto);
_bufferHandle = buffer.Handle;
Size = size;
_map = allocation.HostPointer;
}
private void CopyFromOrToBuffer(
CommandBuffer commandBuffer,
VkBuffer buffer,
Image image,
int size,
bool to,
int dstLayer,
int dstLevel,
int x,
int y,
int width,
int height)
{
var aspectFlags = Info.Format.ConvertAspectFlags();
if (aspectFlags == (ImageAspectFlags.ImageAspectDepthBit | ImageAspectFlags.ImageAspectStencilBit))
{
aspectFlags = ImageAspectFlags.ImageAspectDepthBit;
}
var sl = new ImageSubresourceLayers(aspectFlags, (uint)(FirstLevel + dstLevel), (uint)(FirstLayer + dstLayer), 1);
var extent = new Extent3D((uint)width, (uint)height, 1);
int rowLengthAlignment = Info.BlockWidth;
// We expect all data being written into the texture to have a stride aligned by 4.
if (!to && Info.BytesPerPixel < 4)
{
rowLengthAlignment = 4 / Info.BytesPerPixel;
}
var region = new BufferImageCopy(
0,
(uint)AlignUpNpot(width, rowLengthAlignment),
(uint)AlignUpNpot(height, Info.BlockHeight),
sl,
new Offset3D(x, y, 0),
extent);
if (to)
{
_gd.Api.CmdCopyImageToBuffer(commandBuffer, image, ImageLayout.General, buffer, 1, region);
}
else
{
_gd.Api.CmdCopyBufferToImage(commandBuffer, buffer, image, ImageLayout.General, 1, region);
}
}
private unsafe void CreateHostBufferWithContent <T>(ReadOnlySpan <T> span, out Buffer buffer, out Allocation alloc) where T : unmanaged
{
BufferCreateInfo bufferInfo = new(
usage : BufferUsageFlags.BufferUsageTransferSrcBit,
size : (uint)Unsafe.SizeOf <T>() * (uint)span.Length);
AllocationCreateInfo allocInfo = new(AllocationCreateFlags.Mapped, usage : MemoryUsage.CPU_Only);
buffer = Allocator.CreateBuffer(in bufferInfo, in allocInfo, out alloc);
if (!alloc.TryGetSpan(out Span <T> bufferSpan))
{
throw new InvalidOperationException("Unable to get Span<T> to mapped allocation.");
}
span.CopyTo(bufferSpan);
}
private unsafe void CreateUniformBuffer() //Simpler setup from the Vertex buffer because there is no staging or device copying
{
BufferCreateInfo bufferInfo = new BufferCreateInfo
{
SType = StructureType.BufferCreateInfo,
Size = this.UniformBufferSize,
Usage = BufferUsageFlags.BufferUsageUniformBufferBit,
SharingMode = SharingMode.Exclusive
};
// Allow this to be updated every frame
var allocInfo = new AllocationCreateInfo(
usage: MemoryUsage.CPU_To_GPU,
requiredFlags: MemoryPropertyFlags.MemoryPropertyHostVisibleBit);
// Binds buffer to allocation for you
var buffer = this.Allocator.CreateBuffer(in bufferInfo, in allocInfo, out var allocation);
// Camera/MVP Matrix calculation
Camera.LookAt(new Vector3(2f, 2f, -5f), new Vector3(0, 0, 0), new Vector3(0, 1, 0));
var radFov = MathF.PI / 180f * 45f;
var aspect = (float)this.SwapchainExtent.Width / this.SwapchainExtent.Height;
Camera.Perspective(radFov, aspect, 0.5f, 100f);
Camera.UpdateMVP();
allocation.Map();
Matrix4x4 *ptr = (Matrix4x4 *)allocation.MappedData;
ptr[0] = Camera.MVPMatrix; // Camera Matrix
ptr[1] = Matrix4x4.Identity; // Model Matrix
allocation.Unmap();
this.UniformBuffer = buffer;
this.UniformAllocation = allocation;
}
public DisposableBuffer(Vk api, Device device, Silk.NET.Vulkan.Buffer buffer)
{
_api = api;
_device = device;
Value = buffer;
}
public void InitializeBuffers(int setIndex, int baseBinding, int countPerUnit, DescriptorType type, VkBuffer dummyBuffer)
{
Span <DescriptorBufferInfo> infos = stackalloc DescriptorBufferInfo[countPerUnit];
infos.Fill(new DescriptorBufferInfo()
{
Buffer = dummyBuffer,
Range = Vk.WholeSize
});
UpdateBuffers(setIndex, baseBinding, infos, type);
}
private void CopyFromOrToBuffer(
CommandBuffer commandBuffer,
VkBuffer buffer,
Image image,
int size,
bool to,
int dstLayer,
int dstLevel,
int dstLayers,
int dstLevels,
bool singleSlice)
{
bool is3D = Info.Target == Target.Texture3D;
int width = Info.Width;
int height = Info.Height;
int depth = is3D && !singleSlice ? Info.Depth : 1;
int layer = is3D ? 0 : dstLayer;
int layers = dstLayers;
int levels = dstLevels;
int offset = 0;
for (int level = 0; level < levels; level++)
{
int mipSize = GetBufferDataLength(Info.GetMipSize(level));
int endOffset = offset + mipSize;
if ((uint)endOffset > (uint)size)
{
break;
}
int rowLength = (Info.GetMipStride(level) / Info.BytesPerPixel) * Info.BlockWidth;
var aspectFlags = Info.Format.ConvertAspectFlags();
if (aspectFlags == (ImageAspectFlags.ImageAspectDepthBit | ImageAspectFlags.ImageAspectStencilBit))
{
aspectFlags = ImageAspectFlags.ImageAspectDepthBit;
}
var sl = new ImageSubresourceLayers(
aspectFlags,
(uint)(FirstLevel + dstLevel + level),
(uint)(FirstLayer + layer),
(uint)layers);
var extent = new Extent3D((uint)width, (uint)height, (uint)depth);
int z = is3D ? dstLayer : 0;
var region = new BufferImageCopy((ulong)offset, (uint)rowLength, (uint)height, sl, new Offset3D(0, 0, z), extent);
if (to)
{
_gd.Api.CmdCopyImageToBuffer(commandBuffer, image, ImageLayout.General, buffer, 1, region);
}
else
{
_gd.Api.CmdCopyBufferToImage(commandBuffer, buffer, image, ImageLayout.General, 1, region);
}
offset += mipSize;
width = Math.Max(1, width >> 1);
height = Math.Max(1, height >> 1);
if (Info.Target == Target.Texture3D)
{
depth = Math.Max(1, depth >> 1);
}
}
}
private unsafe void CreateDeviceLocalBuffer(BufferUsageFlags usage, uint size, out Buffer buffer, out Allocation alloc)
{
BufferCreateInfo bufferInfo = new(
usage : usage | BufferUsageFlags.BufferUsageTransferDstBit,
size : size);
AllocationCreateInfo allocInfo = new(usage : MemoryUsage.GPU_Only);
buffer = Allocator.CreateBuffer(in bufferInfo, in allocInfo, out alloc);
}
