internal void DeleteBuffer(glBuffer Buffer)
{
int bufferHandle = Buffer.Handle;
lock (this)
{
#if NET_STANDARD_13
_glDeleteBuffers(1, &bufferHandle);
#else
if (_CurrentThreadId == Thread.CurrentThread.ManagedThreadId)
{
_glDeleteBuffers(1, &bufferHandle);
}
else
{
if (_PendingBufferDeleteCount == _PendingBufferDelete.Length)
{
Array.Resize <int>(ref _PendingBufferDelete, _PendingBufferDelete.Length * 2);
}
_PendingBufferDelete[_PendingBufferDeleteCount] = bufferHandle;
_PendingBufferDeleteCount++;
}
#endif
}
}
public glBuffer[] GenBuffers(int numBuffers)
{
int[] bufferHandle = new int[numBuffers];
fixed(int *pbufferHandles = &bufferHandle[0])
{
_glGenBuffers(numBuffers, pbufferHandles);
}
glBuffer[] buffers = new glBuffer[numBuffers];
for (int n = 0; n < numBuffers; n++)
{
buffers[n] = new glBuffer(this, bufferHandle[n]);
}
return(buffers);
}
internal void BufferData(glBuffer Buffer, glBuffer.BindTarget Target, int Size, IntPtr Data, glBuffer.Usage Usage)
{
int indexTarget = GlTargetTobufferTargetIndex(Target);
if (Size < 0)
{
throw new Exception("Negative buffer size are not allowed");
}
lock (_Buffers)
{
if (_Buffers[indexTarget] != Buffer)
{
throw new Exception("Trying to set buffer data while the buffer is not bound to the specified target");
}
_glBufferData((int)Target, new IntPtr(Size), Data.ToPointer(), (int)Usage);
}
}
internal void BindBuffer(glBuffer Buffer, glBuffer.BindTarget Target)
{
int indexTarget = GlTargetTobufferTargetIndex(Target);
lock (_Buffers)
{
if (Buffer == null)
{
_glBindBuffer((int)Target, 0);
_Buffers[indexTarget] = null;
}
else
{
_glBindBuffer((int)Target, Buffer.Handle);
_Buffers[indexTarget] = Buffer;
}
}
}