public VKBuffer(
string name, Graphics graphics, long count, BufferUsages usages, MemoryProperties memoryProperties,
BufferCreateFlags flags = BufferCreateFlags.None, SharingMode sharingMode = SharingMode.Exclusive,
int[] queueFamilyIndices = null
)
{
Name = name;
Graphics = graphics;
Count = count;
Size = count * Interop.SizeOf <T>();
Usages = usages;
Buffer = Graphics.Device.CreateBuffer(new BufferCreateInfo(
size: Size,
usages: usages,
flags: flags,
sharingMode: sharingMode,
queueFamilyIndices: queueFamilyIndices
));
var reqs = Buffer.GetMemoryRequirements();
DeviceMemory = Graphics.Device.AllocateMemory(new MemoryAllocateInfo(
reqs.Size,
graphics.GetMemoryTypeIndex(reqs.MemoryTypeBits, memoryProperties)
));
Buffer.BindMemory(DeviceMemory);
}
/// <summary>
/// Initializes a new instance of the <see cref="BufferCreateInfo"/> structure.
/// </summary>
/// <param name="size">The size in bytes of the buffer to be created.</param>
/// <param name="usages">The bitmask describing the allowed usages of the buffer.</param>
/// <param name="flags">Additional parameters of the buffer.</param>
/// <param name="sharingMode">
/// The sharing mode of the buffer when it will be accessed by multiple queue families.
/// </param>
/// <param name="queueFamilyIndices">
/// A list of queue families that will access this buffer (ignored if <see
/// cref="SharingMode"/> is not <see cref="VulkanCore.SharingMode.Concurrent"/>).
/// </param>
/// <param name="next">
/// Is <see cref="IntPtr.Zero"/> or a pointer to an extension-specific structure.
/// </param>
public BufferCreateInfo(
long size,
BufferUsages usages,
BufferCreateFlags flags = 0,
SharingMode sharingMode = SharingMode.Exclusive,
int[] queueFamilyIndices = null,
IntPtr next = default(IntPtr))
{
Next = next;
Size = size;
Usages = usages;
Flags = flags;
SharingMode = sharingMode;
QueueFamilyIndices = queueFamilyIndices;
}
public PhysicalDeviceExternalBufferInfo
(
StructureType sType = StructureType.PhysicalDeviceExternalBufferInfo,
void *pNext = default,
BufferCreateFlags flags = default,
BufferUsageFlags usage = default,
ExternalMemoryHandleTypeFlags handleType = default
)
{
SType = sType;
PNext = pNext;
Flags = flags;
Usage = usage;
HandleType = handleType;
}
public BufferCreateInfo
(
StructureType sType = StructureType.BufferCreateInfo,
void *pNext = default,
BufferCreateFlags flags = default,
ulong size = default,
BufferUsageFlags usage = default,
SharingMode sharingMode = default,
uint queueFamilyIndexCount = default,
uint *pQueueFamilyIndices = default
)
{
SType = sType;
PNext = pNext;
Flags = flags;
Size = size;
Usage = usage;
SharingMode = sharingMode;
QueueFamilyIndexCount = queueFamilyIndexCount;
PQueueFamilyIndices = pQueueFamilyIndices;
}