public MemoryBlock(DeviceMemory memory)
{
Memory = memory;
first = last = new Node {
Offset = 0,
Size = memory.Size
};
TreeInsert(first);
}
public MemoryAlloc(MemoryAllocator allocator, MemoryBlock memoryBlock, MemoryBlock.Node memoryBlockNode)
{
Allocator = allocator;
MemoryBlock = memoryBlock;
MemoryBlockNode = memoryBlockNode;
Memory = memoryBlock.Memory;
Offset = memoryBlockNode.Offset;
Size = memoryBlockNode.Size;
}
private void FreeDeviceMemory(DeviceMemory memory)
{
if (ShouldMapPersistenly(memory.Type))
{
UnmapDeviceMemory(memory);
}
if (memory.MapCounter > 0)
{
throw new InvalidOperationException();
}
Context.Device.FreeMemory(memory.Memory);
}
private void UnmapDeviceMemory(DeviceMemory memory)
{
lock (memory) {
if (memory.MapCounter == 0)
{
throw new InvalidOperationException();
}
memory.MapCounter--;
if (memory.MapCounter == 0)
{
Context.Device.UnmapMemory(memory.Memory);
}
}
}
private IntPtr MapDeviceMemory(DeviceMemory memory)
{
if ((memory.Type.PropertyFlags & SharpVulkan.MemoryPropertyFlags.HostVisible) == 0)
{
throw new InvalidOperationException();
}
lock (memory) {
memory.MapCounter++;
if (memory.MapCounter == 1)
{
memory.MappedMemory = Context.Device.MapMemory(memory.Memory, 0, memory.Size, SharpVulkan.MemoryMapFlags.None);
}
return(memory.MappedMemory);
}
}
private DeviceMemory TryAllocateDeviceMemory(MemoryType type, ulong size, SharpVulkan.Ext.MemoryDedicatedAllocateInfo *dedicatedAllocateInfo)
{
var allocateInfo = new SharpVulkan.MemoryAllocateInfo {
StructureType = SharpVulkan.StructureType.MemoryAllocateInfo,
MemoryTypeIndex = type.Index,
AllocationSize = size,
Next = new IntPtr(dedicatedAllocateInfo)
};
DeviceMemory memory;
try {
memory = new DeviceMemory(Context.Device.AllocateMemory(ref allocateInfo), type, size);
} catch (SharpVulkan.SharpVulkanException e) when(e.Result == SharpVulkan.Result.ErrorOutOfDeviceMemory)
{
return(null);
}
if (ShouldMapPersistenly(type))
{
MapDeviceMemory(memory);
}
return(memory);
}
public MemoryAlloc(MemoryAllocator allocator, DeviceMemory memory)
{
Allocator = allocator;
Memory = memory;
Size = memory.Size;
}
