Package org.lwjgl.opengles

Class EXTMapBufferRange

  • public final class EXTMapBufferRange
extends Object

    • Field Detail

      • GL_MAP_READ_BIT_EXT

        public static final int GL_MAP_READ_BIT_EXT
        Accepted by the <access> parameter of MapBufferRangeEXT:
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        Constant Field Values

      • GL_MAP_WRITE_BIT_EXT

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

        public static final int GL_MAP_INVALIDATE_RANGE_BIT_EXT
        Accepted by the <access> parameter of MapBufferRangeEXT:
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        Constant Field Values

      • GL_MAP_INVALIDATE_BUFFER_BIT_EXT

        public static final int GL_MAP_INVALIDATE_BUFFER_BIT_EXT
        Accepted by the <access> parameter of MapBufferRangeEXT:
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        Constant Field Values

      • GL_MAP_FLUSH_EXPLICIT_BIT_EXT

        public static final int GL_MAP_FLUSH_EXPLICIT_BIT_EXT
        Accepted by the <access> parameter of MapBufferRangeEXT:
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        Constant Field Values

      • GL_MAP_UNSYNCHRONIZED_BIT_EXT

        public static final int GL_MAP_UNSYNCHRONIZED_BIT_EXT
        Accepted by the <access> parameter of MapBufferRangeEXT:
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        Constant Field Values

    • Method Detail

      • 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)