public static CMBlockBuffer CreateEmpty (uint subBlockCapacity, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
IntPtr buffer;
error = CMBlockBufferCreateEmpty (IntPtr.Zero, subBlockCapacity, flags, out buffer);
if (error != CMBlockBufferError.None)
return null;
return new CMBlockBuffer (buffer, true);
}
public static CMBlockBuffer FromBuffer(CMBlockBuffer targetBuffer, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
// From docs targetBuffer must not be null unless the PermitEmptyReference flag is set
if (!flags.HasFlag(CMBlockBufferFlags.PermitEmptyReference))
{
if (targetBuffer == null)
{
throw new ArgumentNullException("targetBuffer");
}
}
IntPtr buffer;
error = CMBlockBufferCreateWithBufferReference(IntPtr.Zero, targetBuffer == null ? IntPtr.Zero : targetBuffer.handle, offsetToData, dataLength, flags, out buffer);
if (error != CMBlockBufferError.None)
{
return(null);
}
return(new CMBlockBuffer(buffer, true));
}
public static CMBlockBuffer CreateEmpty(uint subBlockCapacity, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
IntPtr buffer;
error = CMBlockBufferCreateEmpty(IntPtr.Zero, subBlockCapacity, flags, out buffer);
if (error != CMBlockBufferError.None)
{
return(null);
}
return(new CMBlockBuffer(buffer, true));
}
public static CMBlockBuffer CreateContiguous(CMBlockBuffer sourceBuffer, CMCustomBlockAllocator customBlockSource, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
if (sourceBuffer == null)
{
throw new ArgumentNullException("sourceBuffer");
}
IntPtr buffer;
if (customBlockSource == null)
{
error = CMBlockBufferCreateContiguous(IntPtr.Zero, sourceBuffer.handle, IntPtr.Zero, IntPtr.Zero, offsetToData, dataLength, flags, out buffer);
}
else
{
error = CMBlockBufferCreateContiguous(IntPtr.Zero, sourceBuffer.handle, IntPtr.Zero, ref customBlockSource.Cblock, offsetToData, dataLength, flags, out buffer);
}
if (error != CMBlockBufferError.None)
{
return(null);
}
var block = new CMBlockBuffer(buffer, true);
block.customAllocator = customBlockSource;
return(block);
}
public static CMBlockBuffer FromMemoryBlock(byte [] data, nuint offsetToData, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
if (data == null)
{
throw new ArgumentNullException(nameof(data));
}
var allocator = new CMManagedArrayBlockAllocator(data);
return(FromMemoryBlock(IntPtr.Zero, (uint)data.Length, allocator, offsetToData, (uint)data.Length, flags, out error));
}
public static CMBlockBuffer FromMemoryBlock(IntPtr memoryBlock, nuint blockLength, CMCustomBlockAllocator customBlockSource, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
var blockAllocator = memoryBlock == IntPtr.Zero ? IntPtr.Zero : CFAllocator.Null.Handle;
IntPtr buffer;
if (customBlockSource == null)
{
error = CMBlockBufferCreateWithMemoryBlock(IntPtr.Zero, memoryBlock, blockLength, blockAllocator, IntPtr.Zero, offsetToData, dataLength, flags, out buffer);
}
else
{
error = CMBlockBufferCreateWithMemoryBlock(IntPtr.Zero, memoryBlock, blockLength, blockAllocator, ref customBlockSource.Cblock, offsetToData, dataLength, flags, out buffer);
}
if (error != CMBlockBufferError.None)
{
return(null);
}
var block = new CMBlockBuffer(buffer, true);
block.customAllocator = customBlockSource;
return(block);
}
public static CMBlockBuffer FromMemoryBlock(byte [] data, nuint offsetToData, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
if (data == null)
throw new ArgumentNullException (nameof (data));
var allocator = new CMManagedArrayBlockAllocator (data);
return FromMemoryBlock (IntPtr.Zero, (uint) data.Length, allocator, offsetToData, (uint) data.Length, flags, out error);
}
public static CMBlockBuffer FromMemoryBlock(IntPtr memoryBlock, nuint blockLength, CMCustomBlockAllocator customBlockSource, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
var blockAllocator = memoryBlock == IntPtr.Zero ? IntPtr.Zero : CFAllocator.Null.Handle;
IntPtr buffer;
if (customBlockSource == null)
error = CMBlockBufferCreateWithMemoryBlock (IntPtr.Zero, memoryBlock, blockLength, blockAllocator, IntPtr.Zero, offsetToData, dataLength, flags, out buffer);
else
error = CMBlockBufferCreateWithMemoryBlock (IntPtr.Zero, memoryBlock, blockLength, blockAllocator, ref customBlockSource.Cblock, offsetToData, dataLength, flags, out buffer);
if (error != CMBlockBufferError.None)
return null;
var block = new CMBlockBuffer (buffer, true);
block.customAllocator = customBlockSource;
return block;
}
public static CMBlockBuffer FromBuffer(CMBlockBuffer targetBuffer, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
// From docs targetBuffer must not be null unless the PermitEmptyReference flag is set
if (!flags.HasFlag (CMBlockBufferFlags.PermitEmptyReference))
if (targetBuffer == null)
throw new ArgumentNullException ("targetBuffer");
IntPtr buffer;
error = CMBlockBufferCreateWithBufferReference (IntPtr.Zero, targetBuffer == null ? IntPtr.Zero : targetBuffer.handle, offsetToData, dataLength, flags, out buffer);
if (error != CMBlockBufferError.None)
return null;
return new CMBlockBuffer (buffer, true);
}
public static CMBlockBuffer CreateContiguous(CMBlockBuffer sourceBuffer, CMCustomBlockAllocator customBlockSource, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
if (sourceBuffer == null)
throw new ArgumentNullException ("sourceBuffer");
IntPtr buffer;
if (customBlockSource == null)
error = CMBlockBufferCreateContiguous (IntPtr.Zero, sourceBuffer.handle, IntPtr.Zero, IntPtr.Zero, offsetToData, dataLength, flags, out buffer);
else
error = CMBlockBufferCreateContiguous (IntPtr.Zero, sourceBuffer.handle, IntPtr.Zero, ref customBlockSource.Cblock, offsetToData, dataLength, flags, out buffer);
if (error != CMBlockBufferError.None)
return null;
var block = new CMBlockBuffer (buffer, true);
block.customAllocator = customBlockSource;
return block;
}
public static CMBlockBuffer?FromBuffer(CMBlockBuffer?targetBuffer, nuint offsetToData, nuint dataLength, CMBlockBufferFlags flags, out CMBlockBufferError error)
{
// From docs targetBuffer must not be null unless the PermitEmptyReference flag is set
if (!flags.HasFlag(CMBlockBufferFlags.PermitEmptyReference))
{
if (targetBuffer is null)
{
ObjCRuntime.ThrowHelper.ThrowArgumentNullException(nameof(targetBuffer));
}
}
IntPtr buffer;
error = CMBlockBufferCreateWithBufferReference(IntPtr.Zero, targetBuffer.GetHandle(), offsetToData, dataLength, flags, out buffer);
if (error != CMBlockBufferError.None)
{
return(null);
}
return(new CMBlockBuffer(buffer, true));
}
