private void CreateBuffer(ulong size)
{
var createInfo = new SharpVulkan.BufferCreateInfo {
StructureType = SharpVulkan.StructureType.BufferCreateInfo,
Size = size,
SharingMode = SharpVulkan.SharingMode.Exclusive,
Usage = SharpVulkan.BufferUsageFlags.TransferSource
};
buffer = context.Device.CreateBuffer(ref createInfo);
memory = context.MemoryAllocator.Allocate(buffer,
SharpVulkan.MemoryPropertyFlags.HostVisible | SharpVulkan.MemoryPropertyFlags.HostCoherent);
mappedMemory = context.MemoryAllocator.Map(memory);
bufferSize = size;
bufferOffset = 0;
}
private void FlushOrInvalidateMappedMemoryRange(MemoryAlloc alloc, ulong offset, ulong size, bool flush)
{
if (alloc.Allocator != this)
{
throw new ArgumentException(nameof(alloc));
}
if (alloc.Size < offset + size)
{
throw new ArgumentException();
}
if (size == 0)
{
return;
}
var memoryType = alloc.Memory.Type;
var hostCoherent = (memoryType.PropertyFlags & SharpVulkan.MemoryPropertyFlags.HostCoherent) != 0;
if (hostCoherent)
{
return;
}
var nonCoherentAtomSize = Context.PhysicalDeviceLimits.NonCoherentAtomSize;
var rangeStart = GraphicsUtility.AlignDown(alloc.Offset + offset, nonCoherentAtomSize);
var rangeEnd = GraphicsUtility.AlignUp(alloc.Offset + offset + size, nonCoherentAtomSize);
if (rangeEnd > alloc.Memory.Size)
{
rangeEnd = alloc.Memory.Size;
}
var range = new SharpVulkan.MappedMemoryRange {
StructureType = SharpVulkan.StructureType.MappedMemoryRange,
Memory = alloc.Memory.Memory,
Offset = rangeStart,
Size = rangeEnd - rangeStart
};
if (flush)
{
Context.Device.FlushMappedMemoryRanges(1, &range);
}
else
{
Context.Device.InvalidateMappedMemoryRanges(1, &range);
}
}
private void CreateBuffer()
{
var alignedSliceSize = GraphicsUtility.AlignUp(sliceSize, sliceAlignment);
var bufferSize = sliceCount * alignedSliceSize;
var createInfo = new SharpVulkan.BufferCreateInfo {
StructureType = SharpVulkan.StructureType.BufferCreateInfo,
Size = bufferSize,
SharingMode = SharpVulkan.SharingMode.Exclusive,
Usage = usage
};
buffer = context.Device.CreateBuffer(ref createInfo);
memory = context.MemoryAllocator.Allocate(buffer, memoryPropertyFlags);
sliceQueue.Clear();
for (ulong i = 0; i < sliceCount; i++)
{
sliceQueue.Enqueue(new SliceEntry {
Offset = i * alignedSliceSize
});
}
Generation++;
}
public void Free(MemoryAlloc alloc)
{
if (alloc == null || alloc.Allocator == null)
{
return;
}
if (alloc.Allocator != this)
{
throw new ArgumentException(nameof(alloc));
}
var block = alloc.MemoryBlock;
if (block != null)
{
block.Free(alloc.MemoryBlockNode);
}
else
{
FreeDeviceMemory(alloc.Memory);
}
alloc.Allocator = null;
}
private void Create(bool renderTarget)
{
var vkFormat = VulkanHelper.GetVKFormat(format);
var usage =
SharpVulkan.ImageUsageFlags.TransferSource |
SharpVulkan.ImageUsageFlags.TransferDestination |
SharpVulkan.ImageUsageFlags.Sampled;
if (renderTarget)
{
usage |= SharpVulkan.ImageUsageFlags.ColorAttachment;
}
var tiling = SharpVulkan.ImageTiling.Optimal;
var imageCreateInfo = new SharpVulkan.ImageCreateInfo {
StructureType = SharpVulkan.StructureType.ImageCreateInfo,
ImageType = SharpVulkan.ImageType.Image2D,
Usage = usage,
Format = vkFormat,
Extent = new SharpVulkan.Extent3D((uint)width, (uint)height, 1),
MipLevels = (uint)levelCount,
ArrayLayers = 1,
Samples = SharpVulkan.SampleCountFlags.Sample1,
SharingMode = SharpVulkan.SharingMode.Exclusive,
InitialLayout = SharpVulkan.ImageLayout.Undefined,
Tiling = tiling
};
image = context.Device.CreateImage(ref imageCreateInfo);
var memoryPropertyFlags = SharpVulkan.MemoryPropertyFlags.DeviceLocal;
if (IsPvrtc1Format(Format))
{
memoryPropertyFlags |= SharpVulkan.MemoryPropertyFlags.HostVisible | SharpVulkan.MemoryPropertyFlags.HostCoherent;
}
memory = context.MemoryAllocator.Allocate(image, memoryPropertyFlags, tiling);
var viewCreateInfo = new SharpVulkan.ImageViewCreateInfo {
StructureType = SharpVulkan.StructureType.ImageViewCreateInfo,
ViewType = SharpVulkan.ImageViewType.Image2D,
Image = image,
Format = vkFormat,
Components = SharpVulkan.ComponentMapping.Identity,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color)
};
imageView = context.Device.CreateImageView(ref viewCreateInfo);
var memoryBarrier = new SharpVulkan.ImageMemoryBarrier {
StructureType = SharpVulkan.StructureType.ImageMemoryBarrier,
Image = image,
OldLayout = SharpVulkan.ImageLayout.Undefined,
NewLayout = SharpVulkan.ImageLayout.ShaderReadOnlyOptimal,
SourceAccessMask = SharpVulkan.AccessFlags.None,
DestinationAccessMask = SharpVulkan.AccessFlags.ShaderRead,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color)
};
context.EndRenderPass();
context.EnsureCommandBuffer();
context.CommandBuffer.PipelineBarrier(
SharpVulkan.PipelineStageFlags.TopOfPipe, SharpVulkan.PipelineStageFlags.VertexShader | SharpVulkan.PipelineStageFlags.FragmentShader,
SharpVulkan.DependencyFlags.None, 0, null, 0, null, 1, &memoryBarrier);
}
public void InvalidateMappedMemoryRange(MemoryAlloc alloc, ulong offset, ulong size)
{
FlushOrInvalidateMappedMemoryRange(alloc, offset, size, flush: false);
}