uglMesaCreateNewContextExt(3)

NAME
uglMesaCreateNewContextExt - Create a WindML/Mesa rendering context

SYNOPSIS
#include <GL/uglmesa.h>

UGL_MESA_CONTEXT uglMesaCreateNewContextExt (
                 GLenum mode,
                 GLint depth_bits,
                 GLint stencil_bits,
                 GLint accum_red_bits,
                 GLint accum_green_bits,
                 GLint accum_blue_bits,
                 GLint accum_alpha_bits,
                 UGL_MESA_CONTEXT share_list);

DESCRIPTION
The uglMesaCreateNewContextExt function creates a WindML/Mesa rendering context and specifies desired size of depth buffer, stencil buffer and accumulation buffer.

If you specify zero for depth_bits, stencil_bits, accum_[red|gren|blue]_bits, you can save some memory.

INPUT
mode - can takes the following mask values:
      UGL_MESA_SINGLE = single buffer mode
      UGL_MESA_DOUBLE = double buffer mode, first tries hardware mode and then software mode
      UGL_MESA_DOUBLE_SOFTWARE = double buffer software, fails if impossible
      UGL_MESA_DOUBLE_HARDWARE = double buffer hardware, fails if impossible
      UGL_MESA_WINDML_EXCLUSIVE = uses only WindML calls to write into the memory screen

For example, uglMesaCreateNewContext(UGL_MESA_SINGLE | UGL_MESA_WINDML_EXCLUSIVE) will use a single buffer and will only write into the screen memory with WindML calls. UGL_MESA_DOUBLE_SOFTWARE will be replaced by UGL_MESA_DOUBLE in WindML mode. There is no sense to use single and double buffer at the same time.

depth_bits - depth buffer size

stencil_bits - stencil buffer size

accum_red_bits - accumulation red buffer size

accum_green_bits - accumulation green buffer size

accum_blue_bits - accumulation blue buffer size

accum_alpha_bits - accumulation alpha buffer size

share_list - specifies another UGL_MESA_CONTEXT with which to share display lists. NULL indicates no sharing.

RETURN VALUES
a UGL_MESA_CONTEXT, or zero if error.

SEE ALSO
uglMesaCreateNewContext(3), uglMesaMakeCurrentContext(3)

COPYRIGHT
Copyright © 2001 Wind River Systems, Inc.