/// <summary>
/// Start to read/write buffer.
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public virtual IntPtr MapBufferRange(int offset, int length, MapBufferRangeAccess access, bool bind = true)
{
if (bind)
{
glBindBuffer((uint)this.Target, this.BufferId);
}
return(glMapBufferRange((uint)this.Target, offset, length, (uint)access));
}
/// <summary>
/// Start to read/write buffer.
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public virtual IntPtr MapBufferRange(int offset, int length, MapBufferRangeAccess access, bool bind = true)
{
if (bind)
{
if (glBindBuffer == null)
{
glBindBuffer = OpenGL.GetDelegateFor <OpenGL.glBindBuffer>();
}
glBindBuffer((uint)this.Target, this.BufferId);
}
if (glMapBufferRange == null)
{
glMapBufferRange = OpenGL.GetDelegateFor <OpenGL.glMapBufferRange>();
}
IntPtr pointer = glMapBufferRange((uint)this.Target, offset, length, (uint)access);
return(pointer);
}
/// <summary>
/// Start to read/write buffer.
/// <para>This will returns IntPtr.Zero as this buffer allocates no data in memory.</para>
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public override IntPtr MapBufferRange(int offset, int length, MapBufferRangeAccess access, bool bind = true)
{
return(IntPtr.Zero);
}
/// <summary>
/// Start to read/write buffer.
/// <para>This will returns IntPtr.Zero as this buffer allocates no data in memory.</para>
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public override IntPtr MapBufferRange(int offset, int length, MapBufferRangeAccess access, bool bind = true)
{
return IntPtr.Zero;
}
/// <summary>
/// Start to read/write buffer.
/// </summary>
/// <param name="offset"></param>
/// <param name="length"></param>
/// <param name="access"></param>
/// <param name="bind"></param>
/// <returns></returns>
public virtual IntPtr MapBufferRange(int offset, int length, MapBufferRangeAccess access, bool bind = true)
{
if (bind)
{
if (glBindBuffer == null) { glBindBuffer = OpenGL.GetDelegateFor<OpenGL.glBindBuffer>(); }
glBindBuffer((uint)this.Target, this.BufferId);
}
if (glMapBufferRange == null) { glMapBufferRange = OpenGL.GetDelegateFor<OpenGL.glMapBufferRange>(); }
IntPtr pointer = glMapBufferRange((uint)this.Target, offset, length, (uint)access);
return pointer;
}
