Field Detail

• GL_MAP_READ_BIT

  public static final int GL_MAP_READ_BIT

  Accepted by the <access> parameter of MapBufferRange:

  See Also:

  Constant Field Values

• GL_MAP_WRITE_BIT

  public static final int GL_MAP_WRITE_BIT

  Accepted by the <access> parameter of MapBufferRange:

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  Constant Field Values

• GL_MAP_INVALIDATE_RANGE_BIT

  public static final int GL_MAP_INVALIDATE_RANGE_BIT

  Accepted by the <access> parameter of MapBufferRange:

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  Constant Field Values

• GL_MAP_INVALIDATE_BUFFER_BIT

  public static final int GL_MAP_INVALIDATE_BUFFER_BIT

  Accepted by the <access> parameter of MapBufferRange:

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  Constant Field Values

• GL_MAP_FLUSH_EXPLICIT_BIT

  public static final int GL_MAP_FLUSH_EXPLICIT_BIT

  Accepted by the <access> parameter of MapBufferRange:

  See Also:

  Constant Field Values

• GL_MAP_UNSYNCHRONIZED_BIT

  public static final int GL_MAP_UNSYNCHRONIZED_BIT

  Accepted by the <access> parameter of MapBufferRange:

  See Also:

  Constant Field Values

Method Detail

• glMapBufferRange

  public static ByteBuffer glMapBufferRange​(int target,
                                            long offset,
                                            long length,
                                            int access,
                                            ByteBuffer old_buffer)

  glMapBufferRange maps a GL buffer object range to a ByteBuffer. The old_buffer argument can be null, in which case a new ByteBuffer will be created, pointing to the returned memory. If old_buffer is non-null, it will be returned if it points to the same mapped memory and has the same capacity as the buffer object, otherwise a new ByteBuffer is created. That way, an application will normally use glMapBufferRange like this:

  ByteBuffer mapped_buffer; mapped_buffer = glMapBufferRange(..., ..., ..., ..., null); ... // Another map on the same buffer mapped_buffer = glMapBufferRange(..., ..., ..., ..., mapped_buffer);

  Only ByteBuffers returned from this method are to be passed as the old_buffer argument. User-created ByteBuffers cannot be reused.

  Parameters:

  old_buffer - A ByteBuffer. If this argument points to the same address and has the same capacity as the new mapping, it will be returned and no new buffer will be created.

  Returns:

  A ByteBuffer representing the mapped buffer memory.

• glFlushMappedBufferRange

  public static void glFlushMappedBufferRange​(int target,
                                              long offset,
                                              long length)