GLFLUSHMAPPEDBUFFERR(3G)        [FIXME: manual]       GLFLUSHMAPPEDBUFFERR(3G)

NAME
       glFlushMappedBufferRange, glFlushMappedNamedBufferRange - indicate
       modifications to a range of a mapped buffer

C SPECIFICATION
       void glFlushMappedBufferRange(GLenum target, GLintptr offset,
                                     GLsizeiptr length);

       void glFlushMappedNamedBufferRange(GLuint buffer, GLintptr offset,
                                          GLsizeiptr length);

PARAMETERS
       target
           Specifies the target to which the buffer object is bound for
           glFlushMappedBufferRange, which must be one of the buffer binding
           targets in the following table:

           +-----------------------------+----------------------------+
           |Buffer Binding Target        | Purpose                    |
           +-----------------------------+----------------------------+
           |GL_ARRAY_BUFFER              | Vertex attributes          |
           +-----------------------------+----------------------------+
           |GL_ATOMIC_COUNTER_BUFFER     | Atomic counter storage     |
           +-----------------------------+----------------------------+
           |GL_COPY_READ_BUFFER          | Buffer copy source         |
           +-----------------------------+----------------------------+
           |GL_COPY_WRITE_BUFFER         | Buffer copy destination    |
           +-----------------------------+----------------------------+
           |GL_DISPATCH_INDIRECT_BUFFER  | Indirect compute dispatch  |
           |                             | commands                   |
           +-----------------------------+----------------------------+
           |GL_DRAW_INDIRECT_BUFFER      | Indirect command arguments |
           +-----------------------------+----------------------------+
           |GL_ELEMENT_ARRAY_BUFFER      | Vertex array indices       |
           +-----------------------------+----------------------------+
           |GL_PIXEL_PACK_BUFFER         | Pixel read target          |
           +-----------------------------+----------------------------+
           |GL_PIXEL_UNPACK_BUFFER       | Texture data source        |
           +-----------------------------+----------------------------+
           |GL_QUERY_BUFFER              | Query result buffer        |
           +-----------------------------+----------------------------+
           |GL_SHADER_STORAGE_BUFFER     | Read-write storage for     |
           |                             | shaders                    |
           +-----------------------------+----------------------------+
           |GL_TEXTURE_BUFFER            | Texture data buffer        |
           +-----------------------------+----------------------------+
           |GL_TRANSFORM_FEEDBACK_BUFFER | Transform feedback buffer  |
           +-----------------------------+----------------------------+
           |GL_UNIFORM_BUFFER            | Uniform block storage      |
           +-----------------------------+----------------------------+

       buffer
           Specifies the name of the buffer object for
           glFlushMappedNamedBufferRange.

       offset
           Specifies the start of the buffer subrange, in basic machine units.

       length
           Specifies the length of the buffer subrange, in basic machine
           units.

DESCRIPTION
       glFlushMappedBufferRange indicates that modifications have been made to
       a range of a mapped buffer object. The buffer object must previously
       have been mapped with the GL_MAP_FLUSH_EXPLICIT_BIT flag.

       offset and length indicate the modified subrange of the mapping, in
       basic machine units. The specified subrange to flush is relative to the
       start of the currently mapped range of the buffer. These commands may
       be called multiple times to indicate distinct subranges of the mapping
       which require flushing.

       If a buffer range is mapped with both GL_MAP_PERSISTENT_BIT and
       GL_MAP_FLUSH_EXPLICIT_BIT set, then these commands may be called to
       ensure that data written by the client into the flushed region becomes
       visible to the server. Data written to a coherent store will always
       become visible to the server after an unspecified period of time.

NOTES
       The GL_DISPATCH_INDIRECT_BUFFER and GL_SHADER_STORAGE_BUFFER targets
       are available only if the GL version is 4.3 or greater.

       The GL_QUERY_BUFFER target is available only if the GL version is 4.4
       or greater.

ERRORS
       GL_INVALID_ENUM is generated by glFlushMappedBufferRange if target is
       not one of the buffer binding targets listed above.

       GL_INVALID_OPERATION is generated by glFlushMappedBufferRange if zero
       is bound to target.

       GL_INVALID_OPERATION is generated by glFlushMappedNamedBufferRange if
       buffer is not the name of an existing buffer object.

       GL_INVALID_VALUE is generated if offset or length is negative, or if
       offset + length exceeds the size of the mapping.

       GL_INVALID_OPERATION is generated if the buffer object is not mapped,
       or is mapped without the GL_MAP_FLUSH_EXPLICIT_BIT flag.

VERSION SUPPORT

       +------------------------------+-----------------------------------------------------------------------+
       |                              |                            OpenGL Version                             |
       +------------------------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
       |Function / Feature Name       | 2.0 | 2.1 | 3.0 | 3.1 | 3.2 | 3.3 | 4.0 | 4.1 | 4.2 | 4.3 | 4.4 | 4.5 |
       +------------------------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
       |glFlushMappedBufferRange      |  -  |  -  | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> |
       +------------------------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
       |glFlushMappedNamedBufferRange |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  | <?> |
       +------------------------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+

SEE ALSO
       glMapBufferRange(), glMapBuffer(), glUnmapBuffer()

COPYRIGHT
       Copyright (C) 2010-2014 Khronos Group. This material may be distributed
       subject to the terms and conditions set forth in the Open Publication
       License, v 1.0, 8 June 1999.  http://opencontent.org/openpub/.

COPYRIGHT
       Copyright (C) 2010-2014 Khronos Group

[FIXME: source]                   05/21/2022          GLFLUSHMAPPEDBUFFERR(3G)