Class EXTMapBufferRange

java.lang.Object
org.lwjgl.opengles.EXTMapBufferRange

public final class EXTMapBufferRange extends Object
  • Field Details

    • GL_MAP_READ_BIT_EXT

      public static final int GL_MAP_READ_BIT_EXT
      Accepted by the <access> parameter of MapBufferRangeEXT:
      See Also:
    • GL_MAP_WRITE_BIT_EXT

      public static final int GL_MAP_WRITE_BIT_EXT
      Accepted by the <access> parameter of MapBufferRangeEXT:
      See Also:
    • GL_MAP_INVALIDATE_RANGE_BIT_EXT

      public static final int GL_MAP_INVALIDATE_RANGE_BIT_EXT
      Accepted by the <access> parameter of MapBufferRangeEXT:
      See Also:
    • GL_MAP_INVALIDATE_BUFFER_BIT_EXT

      public static final int GL_MAP_INVALIDATE_BUFFER_BIT_EXT
      Accepted by the <access> parameter of MapBufferRangeEXT:
      See Also:
    • GL_MAP_FLUSH_EXPLICIT_BIT_EXT

      public static final int GL_MAP_FLUSH_EXPLICIT_BIT_EXT
      Accepted by the <access> parameter of MapBufferRangeEXT:
      See Also:
    • GL_MAP_UNSYNCHRONIZED_BIT_EXT

      public static final int GL_MAP_UNSYNCHRONIZED_BIT_EXT
      Accepted by the <access> parameter of MapBufferRangeEXT:
      See Also:
  • Method Details

    • glMapBufferRangeEXT

      public static ByteBuffer glMapBufferRangeEXT(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.
    • glFlushMappedBufferRangeEXT

      public static void glFlushMappedBufferRangeEXT(int target, long offset, long length)