private MemoryAlloc AllocateFromBlock(MemoryType type, ulong size, ulong alignment, bool linear)
{
if (type.BlockSize < size)
{
throw new OutOfMemoryException();
}
alignment = GraphicsUtility.CombineAlignment(alignment, type.MinAlignment);
var pool = linear ? memoryPoolsLinear[type.Index] : memoryPoolsNonLinear[type.Index];
foreach (var block in pool)
{
var blockNode = block.TryAllocate(size, alignment);
if (blockNode != null)
{
return(new MemoryAlloc(this, block, blockNode));
}
}
var newBlockMemory = TryAllocateDeviceMemory(type, type.BlockSize, null);
if (newBlockMemory == null)
{
throw new OutOfMemoryException();
}
var newBlock = new MemoryBlock(newBlockMemory);
var newBlockNode = newBlock.TryAllocate(size, alignment);
if (newBlockNode == null)
{
throw new OutOfMemoryException();
}
pool.Add(newBlock);
return(new MemoryAlloc(this, newBlock, newBlockNode));
}
private static ulong GetAlignmentForBufferUsage(PlatformRenderContext ctx, SharpVulkan.BufferUsageFlags usage)
{
ulong alignment = 1;
if ((usage & SharpVulkan.BufferUsageFlags.UniformBuffer) != 0)
{
alignment = GraphicsUtility.CombineAlignment(alignment, ctx.PhysicalDeviceLimits.MinUniformBufferOffsetAlignment);
}
return(alignment);
}
public void SetData(int level, int x, int y, int width, int height, IntPtr data)
{
var dataSize = GraphicsUtility.CalculateImageDataSize(Format, width, height);
if (IsPvrtc1Format(Format))
{
if (x != 0 || y != 0 || width != Width || height != Height)
{
throw new NotSupportedException();
}
if (context.NextFenceValue <= WriteFenceValue)
{
context.Flush();
}
context.WaitForFence(WriteFenceValue);
var dstData = Context.MemoryAllocator.Map(memory);
try {
GraphicsUtility.CopyMemory(dstData, data, dataSize);
} finally {
Context.MemoryAllocator.Unmap(memory);
}
}
else
{
ulong bufferOffsetAlignment = 4;
bufferOffsetAlignment = GraphicsUtility.CombineAlignment(bufferOffsetAlignment, (ulong)Format.GetSize());
bufferOffsetAlignment = GraphicsUtility.CombineAlignment(bufferOffsetAlignment, context.PhysicalDeviceLimits.OptimalBufferCopyOffsetAlignment);
var uploadBufferAlloc = context.AllocateUploadBuffer((ulong)dataSize, bufferOffsetAlignment);
GraphicsUtility.CopyMemory(uploadBufferAlloc.Data, data, dataSize);
context.EndRenderPass();
context.EnsureCommandBuffer();
var preMemoryBarrier = new SharpVulkan.ImageMemoryBarrier {
StructureType = SharpVulkan.StructureType.ImageMemoryBarrier,
Image = image,
OldLayout = SharpVulkan.ImageLayout.ShaderReadOnlyOptimal,
NewLayout = SharpVulkan.ImageLayout.TransferDestinationOptimal,
SourceAccessMask = SharpVulkan.AccessFlags.ShaderRead,
DestinationAccessMask = SharpVulkan.AccessFlags.TransferWrite,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color, 0, 1, (uint)level, 1)
};
context.CommandBuffer.PipelineBarrier(
SharpVulkan.PipelineStageFlags.VertexShader | SharpVulkan.PipelineStageFlags.FragmentShader,
SharpVulkan.PipelineStageFlags.Transfer, SharpVulkan.DependencyFlags.None,
0, null, 0, null, 1, &preMemoryBarrier);
var copyRegion = new SharpVulkan.BufferImageCopy {
BufferOffset = uploadBufferAlloc.BufferOffset,
BufferRowLength = (uint)width,
BufferImageHeight = (uint)height,
ImageOffset = new SharpVulkan.Offset3D(x, y, 0),
ImageExtent = new SharpVulkan.Extent3D((uint)width, (uint)height, 1),
ImageSubresource = new SharpVulkan.ImageSubresourceLayers(SharpVulkan.ImageAspectFlags.Color, 0, 1, (uint)level)
};
context.CommandBuffer.CopyBufferToImage(
uploadBufferAlloc.Buffer, image, SharpVulkan.ImageLayout.TransferDestinationOptimal, 1, ©Region);
var postMemoryBarrier = new SharpVulkan.ImageMemoryBarrier {
StructureType = SharpVulkan.StructureType.ImageMemoryBarrier,
Image = image,
OldLayout = SharpVulkan.ImageLayout.TransferDestinationOptimal,
NewLayout = SharpVulkan.ImageLayout.ShaderReadOnlyOptimal,
SourceAccessMask = SharpVulkan.AccessFlags.TransferWrite,
DestinationAccessMask = SharpVulkan.AccessFlags.ShaderRead,
SubresourceRange = new SharpVulkan.ImageSubresourceRange(SharpVulkan.ImageAspectFlags.Color, 0, 1, (uint)level, 1)
};
context.CommandBuffer.PipelineBarrier(
SharpVulkan.PipelineStageFlags.Transfer,
SharpVulkan.PipelineStageFlags.VertexShader | SharpVulkan.PipelineStageFlags.FragmentShader,
SharpVulkan.DependencyFlags.None, 0, null, 0, null, 1, &postMemoryBarrier);
}
}