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GLFLUSHMAPPEDBUFFERR(3G)                         OpenGL 3.3                         GLFLUSHMAPPEDBUFFERR(3G)



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

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

PARAMETERS
       target
           Specifies the target of the flush operation.  target must be GL_ARRAY_BUFFER,
           GL_COPY_READ_BUFFER, GL_COPY_WRITE_BUFFER, GL_ELEMENT_ARRAY_BUFFER, GL_PIXEL_PACK_BUFFER,
           GL_PIXEL_UNPACK_BUFFER, GL_TEXTURE_BUFFER, GL_TRANSFORM_FEEDBACK_BUFFER, or GL_UNIFORM_BUFFER.

       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.
       The buffer must previously have been mapped with the GL_MAP_FLUSH_EXPLICIT flag.  offset and length
       indicate the modified subrange of the mapping, in basic units. The specified subrange to flush is
       relative to the start of the currently mapped range of the buffer.  glFlushMappedBufferRange may be
       called multiple times to indicate distinct subranges of the mapping which require flushing.

ERRORS
       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 zero is bound to target.


       GL_INVALID_OPERATION is generated if the buffer bound to target is not mapped, or is mapped without
       the GL_MAP_FLUSH_EXPLICIT flag.

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


COPYRIGHT
       Copyright (C) 2010 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/.



OpenGL 3.3                                       03/08/2011                         GLFLUSHMAPPEDBUFFERR(3G)