public override string ToString()
{
return(string.Concat(
nameof(BufferHandle) + "=", BufferHandle.ToString(),
", " + nameof(BufferTarget) + "=", BufferTarget.ToString(),
", " + nameof(StorageOffsetInBytes) + "=", StorageOffsetInBytes.ToString(),
", " + nameof(StorageLengthInBytes) + "=", StorageLengthInBytes.ToString()
));
}
/// <summary>
/// Updates a subset of the buffer object's data store.
/// </summary>
/// <param name="data">The new data that will be copied to the data store.</param>
/// <param name="size">The size in bytes of the data store region being replaced.</param>
/// <param name="offset">The offset in bytes into the buffer object's data store where data replacement will begin.</param>
public void BufferSubData(T[] data, int size, int offset)
{
if (BufferTarget != OpenGL.BufferTarget.ArrayBuffer && BufferTarget != OpenGL.BufferTarget.ElementArrayBuffer &&
BufferTarget != OpenGL.BufferTarget.PixelPackBuffer && BufferTarget != OpenGL.BufferTarget.PixelUnpackBuffer)
{
throw new InvalidOperationException(string.Format("BufferSubData cannot be called with a BufferTarget of type {0}", BufferTarget.ToString()));
}
GCHandle handle = GCHandle.Alloc(data, GCHandleType.Pinned);
try
{
Gl.BindBuffer(this);
Gl.BufferSubData(BufferTarget, (IntPtr)offset, (IntPtr)size, handle.AddrOfPinnedObject());
}
finally
{
handle.Free();
}
}
// \brief Copies all buffer ranges to buffer
public void UpdateAll()
{
lock (this)
{
int newSize = 0;
bool sizeChanged = false;
foreach (var bufferRange in bufferRanges)
{
newSize += (int)bufferRange.Size;
}
Use();
#if DEBUG_BUFFER_OBJECTS
System.Diagnostics.Debug.WriteLine("Buffer.UpdateAll() " + bufferObject + " with " + bufferRanges.Count.ToString() + " BufferRanges, BufferObject = " + BufferObject + ", new size = " + newSize + ", old size = " + size);
#endif
if (newSize != size)
{
#if DEBUG_BUFFER_OBJECTS
//Debug.WriteLine("Buffer.UpdateAll() " + bufferObject + " with " + bufferRanges.Count.ToString() + " BufferRanges, BufferObject = " + BufferObject + " new size = " + newSize + " old size + " + size);
System.Console.WriteLine("BufferRL.UpdateAll() " + bufferObject.ToString("X") + " with " + bufferRanges.Count.ToString() + " BufferRanges, new size = " + newSize + " old size " + size);
#endif
size = newSize;
sizeChanged = true;
RL.BufferData(
bufferTarget,
size,
IntPtr.Zero,
bufferUsageHint
);
}
//long align = 0xf;
int offset = 0;
#if DEBUG_BUFFER_OBJECTS
Debug.WriteLine("Buffer.UpdateAll() with " + bufferRanges.Count.ToString() + " BufferRanges, BufferObject = " + BufferObject + " " + bufferTarget.ToString());
#endif
// Collect all buffer range data to a single MemoryStream
foreach (var bufferRange in bufferRanges)
{
// Write buffer range to memory stream
bufferRange.WriteTo(offset, sizeChanged);
// EXtra alignment just in case
offset += (int)bufferRange.Size;
//long padding = (-size) & (align - 1); // = align - (size & (align - 1))
//size = (size + align - 1) & ~(align - 1);
//memoryStream.Seek(size, SeekOrigin.Begin);
//Debug.WriteLine("Padding " + padding.ToString());
}
}
#if DEBUG_BUFFER_OBJECTS
System.Diagnostics.Debug.WriteLine("Buffer.UpdateAll() " + bufferObject + " total size " + size);
#endif
}
public void UpdateAll()
{
lock (this)
{
if (OpenTK.Graphics.GraphicsContext.CurrentContext == null)
{
#if DEBUG_BUFFER_OBJECTS
System.Diagnostics.Debug.WriteLine("Buffer.UpdateAll() - delayed");
#endif
lock (delayedUpdates)
{
delayedUpdates.Add(this);
return;
}
}
long newSize = 0;
bool sizeChanged = false;
foreach (var bufferRange in bufferRanges)
{
newSize += bufferRange.Size;
}
UseGL();
#if DEBUG_BUFFER_OBJECTS
System.Diagnostics.Debug.WriteLine("Buffer.UpdateAll() " + bufferObject + " with " + bufferRanges.Count.ToString() + " BufferRanges, BufferObject = " + BufferObject + ", new size = " + newSize + ", old size = " + size);
#endif
if (newSize != size)
{
#if DEBUG_BUFFER_OBJECTS
//Debug.WriteLine("Buffer.UpdateAll() " + bufferObject + " with " + bufferRanges.Count.ToString() + " BufferRanges, BufferObject = " + BufferObject + " new size = " + newSize + " old size + " + size);
#endif
size = newSize;
sizeChanged = true;
GL.BufferData(
BufferTargetGL,
(System.IntPtr)(size),
System.IntPtr.Zero,
bufferUsageHint
);
}
//long align = 0xf;
long offset = 0;
#if DEBUG_BUFFER_OBJECTS
Debug.WriteLine("Buffer.UpdateAll() with " + bufferRanges.Count.ToString() + " BufferRanges, BufferObject = " + BufferObject + " " + bufferTarget.ToString());
#endif
// Collect all buffer range data to a single MemoryStream
foreach (var bufferRange in bufferRanges)
{
// Write buffer range to memory stream
bufferRange.WriteTo(offset, sizeChanged);
// EXtra alignment just in case
offset += bufferRange.Size;
//long padding = (-size) & (align - 1); // = align - (size & (align - 1))
//size = (size + align - 1) & ~(align - 1);
//memoryStream.Seek(size, SeekOrigin.Begin);
//Debug.WriteLine("Padding " + padding.ToString());
}
}
#if DEBUG_BUFFER_OBJECTS
System.Diagnostics.Debug.WriteLine("Buffer.UpdateAll() " + bufferObject + " total size " + size);
#endif
}
