GLwDrawA.h

/*
** License Applicability. Except to the extent portions of this file are
** made subject to an alternative license as permitted in the SGI Free
** Software License B, Version 1.1 (the "License"), the contents of this
** file are subject only to the provisions of the License. You may not use
** this file except in compliance with the License. You may obtain a copy
** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
** 
** http://oss.sgi.com/projects/FreeB
** 
** Note that, as provided in the License, the Software is distributed on an
** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
** 
** Original Code. The Original Code is: OpenGL Sample Implementation,
** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
** Copyright in any portions created by third parties is as indicated
** elsewhere herein. All Rights Reserved.
** 
** Additional Notice Provisions: The application programming interfaces
** established by SGI in conjunction with the Original Code are The
** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
** Window System(R) (Version 1.3), released October 19, 1998. This software
** was created using the OpenGL(R) version 1.2.1 Sample Implementation
** published by SGI, but has not been independently verified as being
** compliant with the OpenGL(R) version 1.2.1 Specification.
**
*/

/*
** This file has been slightly modified from the original by Carlos A. M. dos
** Santos <casantos@cpmet.ufpel.tche.br> for integration into XFree86 source
** tree and for generating both Motif(TM) 1.2 and 2.x versions of the widgets
** in the same library.
*/
/* $XFree86: xc/extras/ogl-sample/main/gfx/lib/glw/GLwDrawA.h,v 1.3 2001/05/02 13:37:45 dawes Exp $ */

#ifndef _GLwDrawA_h
#define _GLwDrawA_h

#ifdef __GLX_MOTIF
# ifndef __GLX_INCLUDE_XM_H     /* Defined during library compilation */
#  include <Xm/Xm.h>            /* We need to know about XmVERSION early */
# endif
#endif

#include <GL/glx.h>
#include <GL/gl.h>

/****************************************************************
 *
 * GLwDrawingArea widgets
 *
 ****************************************************************/

/* Resources:

 Name                Class              RepType         Default Value
 ----                -----              -------         -------------
 attribList          AttribList         int *           NULL
 visualInfo          VisualInfo         VisualInfo      NULL
 installColormap     InstallColormap    Boolean         TRUE
 allocateBackground  AllocateColors     Boolean         FALSE
 allocateOtherColors AllocateColors     Boolean         FALSE
 installBackground   InstallBackground  Boolean         TRUE
 exposeCallback      Callback           Pointer         NULL
 ginitCallback       Callback           Pointer         NULL
 inputCallback       Callback           Pointer         NULL
 resizeCallback      Callback           Pointer         NULL

*** The following resources all correspond to the GLX configuration
*** attributes and are used to create the attribList if it is NULL
 bufferSize          BufferSize         int             0
 level               Level              int             0
 rgba                Rgba               Boolean         FALSE
 doublebuffer        Doublebuffer       Boolean         FALSE
 stereo              Stereo             Boolean         FALSE
 auxBuffers          AuxBuffers         int             0
 redSize             ColorSize          int             1
 greenSize           ColorSize          int             1
 blueSize            ColorSize          int             1
 alphaSize           AlphaSize          int             0
 depthSize           DepthSize          int             0
 stencilSize         StencilSize        int             0
 accumRedSize        AccumColorSize     int             0
 accumGreenSize      AccumColorSize     int             0
 accumBlueSize       AccumColorSize     int             0
 accumAlphaSize      AccumAlphaSize     int             0
*/

#define GLwNattribList          "attribList"
#define GLwCAttribList          "AttribList"
#define GLwNvisualInfo          "visualInfo"
#define GLwCVisualInfo          "VisualInfo"
#define GLwRVisualInfo          "VisualInfo"

#define GLwNinstallColormap     "installColormap"
#define GLwCInstallColormap     "InstallColormap"
#define GLwNallocateBackground  "allocateBackground"
#define GLwNallocateOtherColors "allocateOtherColors"
#define GLwCAllocateColors      "AllocateColors"
#define GLwNinstallBackground   "installBackground"
#define GLwCInstallBackground   "InstallBackground"

#define GLwCCallback            "Callback"
#define GLwNexposeCallback      "exposeCallback"
#define GLwNginitCallback       "ginitCallback"
#define GLwNresizeCallback      "resizeCallback"
#define GLwNinputCallback       "inputCallback"

#define GLwNbufferSize          "bufferSize"
#define GLwCBufferSize          "BufferSize"
#define GLwNlevel               "level"
#define GLwCLevel               "Level"
#define GLwNrgba                "rgba"
#define GLwCRgba                "Rgba"
#define GLwNdoublebuffer        "doublebuffer"
#define GLwCDoublebuffer        "Doublebuffer"
#define GLwNstereo              "stereo"
#define GLwCStereo              "Stereo"
#define GLwNauxBuffers          "auxBuffers"
#define GLwCAuxBuffers          "AuxBuffers"
#define GLwNredSize             "redSize"
#define GLwNgreenSize           "greenSize"
#define GLwNblueSize            "blueSize"
#define GLwCColorSize           "ColorSize"
#define GLwNalphaSize           "alphaSize"
#define GLwCAlphaSize           "AlphaSize"
#define GLwNdepthSize           "depthSize"
#define GLwCDepthSize           "DepthSize"
#define GLwNstencilSize         "stencilSize"
#define GLwCStencilSize         "StencilSize"
#define GLwNaccumRedSize        "accumRedSize"
#define GLwNaccumGreenSize      "accumGreenSize"
#define GLwNaccumBlueSize       "accumBlueSize"
#define GLwCAccumColorSize      "AccumColorSize"
#define GLwNaccumAlphaSize      "accumAlphaSize"
#define GLwCAccumAlphaSize      "AccumAlphaSize"

#ifdef __GLX_MOTIF

#if XmVERSION == 1
/*
#  define _GLwMDrawingAreaClassRec      _GLwM1DrawingAreaClassRec
#  define _GLwMDrawingAreaRec           _GLwM1DrawingAreaRec
*/
#  define glwMDrawingAreaWidgetClass    glwM1DrawingAreaWidgetClass
#  define glwMDrawingAreaClassRec       glwM1DrawingAreaClassRec
#  define GLwCreateMDrawingArea         GLwCreateM1DrawingArea
#elif XmVERSION == 2
/*
#  define _GLwMDrawingAreaClassRec      _GLwM2DrawingAreaClassRec
#  define _GLwMDrawingAreaRec           _GLwM2DrawingAreaRec
*/
#  define glwMDrawingAreaWidgetClass    glwM2DrawingAreaWidgetClass
#  define glwMDrawingAreaClassRec       glwM2DrawingAreaClassRec
#  define GLwCreateMDrawingArea         GLwCreateM2DrawingArea
#else
#error "Sorry, unknown Motif version."
#endif /* XmVERSION */

typedef struct _GLwMDrawingAreaClassRec *GLwMDrawingAreaWidgetClass;
typedef struct _GLwMDrawingAreaRec      *GLwMDrawingAreaWidget;

extern WidgetClass glwMDrawingAreaWidgetClass;

#else /* not __GLX_MOTIF */

typedef struct _GLwDrawingAreaClassRec  *GLwDrawingAreaWidgetClass;
typedef struct _GLwDrawingAreaRec       *GLwDrawingAreaWidget;

extern WidgetClass glwDrawingAreaWidgetClass;

#endif /* __GLX_MOTIF */

/* Callback reasons */
#ifdef __GLX_MOTIF
#define GLwCR_EXPOSE    XmCR_EXPOSE
#define GLwCR_RESIZE    XmCR_RESIZE
#define GLwCR_INPUT     XmCR_INPUT
#else /* not __GLX_MOTIF */
/* The same values as Motif, but don't use Motif constants */
#define GLwCR_EXPOSE    38
#define GLwCR_RESIZE    39
#define GLwCR_INPUT     40
#endif /* __GLX_MOTIF */

#define GLwCR_GINIT     32135   /* Arbitrary number that should neverr clash*/

typedef struct
{
    int     reason;
    XEvent  *event;
    Dimension width, height;            /* for resize callback */
} GLwDrawingAreaCallbackStruct;

#if defined(__cplusplus) || defined(c_plusplus)
extern "C" {
#endif

/* front ends to glXMakeCurrent and glXSwapBuffers */
extern void GLwDrawingAreaMakeCurrent (Widget w, GLXContext ctx);
extern void GLwDrawingAreaSwapBuffers (Widget w);

#ifdef __GLX_MOTIF
#ifdef _NO_PROTO
extern Widget GLwCreateMDrawingArea ();
#else /* _NO_PROTO */

extern Widget GLwCreateMDrawingArea (Widget parent, char *name,
                                     ArgList arglist, Cardinal argcount);
#endif /* _NO_PROTO */

#endif /* __GLX_MOTIF */

#if defined(__cplusplus) || defined(c_plusplus)
}
#endif

#endif /* _GLwDrawA_h */