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

NAME
       glGetBufferPointerv, glGetNamedBufferPointerv - return the pointer to a
       mapped buffer object's data store

C SPECIFICATION
       void glGetBufferPointerv(GLenum target, GLenum pname,
                                GLvoid ** params);

       void glGetNamedBufferPointerv(GLuint buffer, GLenum pname,
                                     void **params);

PARAMETERS
       target
           Specifies the target to which the buffer object is bound for
           glGetBufferPointerv, 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
           glGetNamedBufferPointerv.

       pname
           Specifies the name of the pointer to be returned. Must be
           GL_BUFFER_MAP_POINTER.

       params
           Returns the pointer value specified by pname.

DESCRIPTION
       glGetBufferPointerv and glGetNamedBufferPointerv return the buffer
       pointer pname, which must be GL_BUFFER_MAP_POINTER. The single buffer
       map pointer is returned in params. A NULL pointer is returned if the
       buffer object's data store is not currently mapped; or if the
       requesting context did not map the buffer object's data store, and the
       implementation is unable to support mappings on multiple clients.

NOTES
       If an error is generated, no change is made to the contents of params.

       The initial value for the pointer is NULL.

       The GL_ATOMIC_COUNTER_BUFFER target is available only if the GL version
       is 4.2 or greater.

       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 if by glGetBufferPointerv if target is not
       one of the accepted buffer targets, or if pname is not
       GL_BUFFER_MAP_POINTER.

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

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

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 |
       +-------------------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
       |glGetBufferPointerv      | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> | <?> |
       +-------------------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+
       |glGetNamedBufferPointerv |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  |  -  | <?> |
       +-------------------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+-----+

SEE ALSO
       glBindBuffer(), glMapBuffer()

COPYRIGHT
       Copyright (C) 2005 Addison-Wesley. Copyright (C) 2011-2014 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) 2005 Sams Publishing
       Copyright (C) 2011-2014 Khronos Group

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