05-04-2013
What 4 Gigabytes memory limit? This is not Microsoft Windows NT.
There is a 2 Gigabyte file size addressing limit with 32-bit HP-UX Operating Systems. The theoretical 2 Gigabyte memory addressing limit in HP-UX was addressed by changing the page size such that the the maximum became a multiple of the page size. Watch the boot-up on a large memory 32-bit system (16 Gb) when it relocates memory. You should see the same on a 4 Gigabyte memory system.
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LEARN ABOUT OSX
glutinitdisplaymode
glutInitDisplayMode(3GLUT) GLUT glutInitDisplayMode(3GLUT)
NAME
glutInitDisplayMode - sets the initial display mode.
SYNTAX
#include <GLUT/glut.h>
void glutInitDisplayMode(unsigned int mode);
ARGUMENTS
mode Display mode, normally the bitwise OR-ing of GLUT display mode bit masks. See values below:
GLUT_RGBA
Bit mask to select an RGBA mode window. This is the default if neither GLUT_RGBA nor GLUT_INDEX are specified.
GLUT_RGB
An alias for GLUT_RGBA.
GLUT_INDEX
Bit mask to select a color index mode window. This overrides GLUT_RGBA if it is also specified. Note that color index modes are
not supported on Mac OS X.
GLUT_SINGLE
Bit mask to select a single buffered window. This is the default if neither GLUT_DOUBLE or GLUT_SINGLE are specified.
GLUT_DOUBLE
Bit mask to select a double buffered window. This overrides GLUT_SINGLE if it is also specified.
GLUT_ACCUM
Bit mask to select a window with an accumulation buffer.
GLUT_ALPHA
Bit mask to select a window with an alpha component to the color buffer(s).
GLUT_DEPTH
Bit mask to select a window with a depth buffer.
GLUT_STENCIL
Bit mask to select a window with a stencil buffer.
GLUT_MULTISAMPLE
Bit mask to select a window with multisampling support. If multisampling is not available, a non-multisampling window will automat-
ically be chosen. Note: both the OpenGL client-side and server-side implementations must support the GLX_SAMPLE_SGIS extension for
multisampling to be available.
GLUT_STEREO
Bit mask to select a stereo window.
GLUT_LUMINANCE
Bit mask to select a window with a ``luminance'' color model. This model provides the functionality of OpenGL's RGBA color model,
but the green and blue components are not maintained in the frame buffer. Instead each pixel's red component is converted to an
index between zero and glutGet(GLUT_WINDOW_COLORMAP_SIZE)-1 and looked up in a per-window color map to determine the color of pix-
els within the window. The initial colormap of GLUT_LUMINANCE windows is initialized to be a linear gray ramp, but can be modified
with GLUT's colormap routines.
DESCRIPTION
The initial display mode is used when creating top-level windows, subwindows, and overlays to determine the OpenGL display mode for the to-
be-created window or overlay.
Note that GLUT_RGBA selects the RGBA color model, but it does not request any bits of alpha (sometimes called an alpha buffer or destina-
tion alpha) be allocated. To request alpha, specify GLUT_ALPHA. The same applies to GLUT_LUMINANCE.
The glutInitDisplayString routine provides a more powerful way to select frame buffer capabilities for GLUT windows.
GLUT_LUMINANCE IMPLEMENTATION NOTES
GLUT_LUMINANCE is not supported on most OpenGL platforms.
SEE ALSO
glutInit, glutCreateWindow, glutInitDisplayString
AUTHOR
Mark J. Kilgard (mjk@nvidia.com)
GLUT
3.7 glutInitDisplayMode(3GLUT)