Class EXTBufferStorage



  • public class EXTBufferStorage
    extends java.lang.Object
    Native bindings to the EXT_buffer_storage extension.

    OpenGL ES has long supported buffer objects as a means of storing data that may be used to source vertex attributes, pixel data for textures, uniforms and other elements. In un-extended ES, buffer data stores are mutable - that is, they may be de-allocated or resized while they are in use. The GL_EXT_texture_storage extension added immutable storage for texture objects (and was subsequently incorporated into OpenGL ES 3.0). This extension further applies the concept of immutable storage to buffer objects. If an implementation is aware of a buffer's immutability, it may be able to make certain assumptions or apply particular optimizations in order to increase performance or reliability.

    Furthermore, this extension allows applications to pass additional information about a requested allocation to the implementation which it may use to select memory heaps, caching behavior or allocation strategies.

    Finally, this extension introduces the concept of persistent client mappings of buffer objects, which allow clients to retain pointers to a buffer's data store returned as the result of a mapping, and to issue drawing commands while those mappings are in place.

    Requires GLES 3.1.

    • Field Detail

      • GL_MAP_PERSISTENT_BIT_EXT

        public static final int GL_MAP_PERSISTENT_BIT_EXT
        Accepted in the flags parameter of BufferStorageEXT and NamedBufferStorageEXT.
        See Also:
        Constant Field Values
      • GL_MAP_COHERENT_BIT_EXT

        public static final int GL_MAP_COHERENT_BIT_EXT
        Accepted in the flags parameter of BufferStorageEXT and NamedBufferStorageEXT.
        See Also:
        Constant Field Values
      • GL_DYNAMIC_STORAGE_BIT_EXT

        public static final int GL_DYNAMIC_STORAGE_BIT_EXT
        Accepted in the flags parameter of BufferStorageEXT and NamedBufferStorageEXT.
        See Also:
        Constant Field Values
      • GL_CLIENT_STORAGE_BIT_EXT

        public static final int GL_CLIENT_STORAGE_BIT_EXT
        Accepted in the flags parameter of BufferStorageEXT and NamedBufferStorageEXT.
        See Also:
        Constant Field Values
      • GL_BUFFER_IMMUTABLE_STORAGE_EXT

        public static final int GL_BUFFER_IMMUTABLE_STORAGE_EXT
        MAP_PERSISTENT_BIT_EXT 0x0040 (as above) MAP_COHERENT_BIT_EXT 0x0080 (as above) Accepted by the pname parameter of GetBufferParameter{i|i64}v.
        See Also:
        Constant Field Values
      • GL_BUFFER_STORAGE_FLAGS_EXT

        public static final int GL_BUFFER_STORAGE_FLAGS_EXT
        MAP_PERSISTENT_BIT_EXT 0x0040 (as above) MAP_COHERENT_BIT_EXT 0x0080 (as above) Accepted by the pname parameter of GetBufferParameter{i|i64}v.
        See Also:
        Constant Field Values
      • GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT_EXT

        public static final int GL_CLIENT_MAPPED_BUFFER_BARRIER_BIT_EXT
        Accepted by the barriers parameter of MemoryBarrier.
        See Also:
        Constant Field Values
    • Method Detail

      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              long size,
                                              int flags)
      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              java.nio.ByteBuffer data,
                                              int flags)
        ByteBuffer version of: BufferStorageEXT
      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              java.nio.ShortBuffer data,
                                              int flags)
        ShortBuffer version of: BufferStorageEXT
      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              java.nio.IntBuffer data,
                                              int flags)
        IntBuffer version of: BufferStorageEXT
      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              java.nio.FloatBuffer data,
                                              int flags)
        FloatBuffer version of: BufferStorageEXT
      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              short[] data,
                                              int flags)
        short[] version of: BufferStorageEXT
      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              int[] data,
                                              int flags)
        int[] version of: BufferStorageEXT
      • glBufferStorageEXT

        public static void glBufferStorageEXT(int target,
                                              float[] data,
                                              int flags)
        float[] version of: BufferStorageEXT