src/glut/glx/glutint.h

   1 #ifndef __glutint_h__
   2 #define __glutint_h__
   3
   4 /* Copyright (c) Mark J. Kilgard, 1994, 1997, 1998. */
   5
   6 /* This program is freely distributable without licensing fees
   7    and is provided without guarantee or warrantee expressed or
   8    implied. This program is -not- in the public domain. */
   9
  10 #ifdef __VMS
  11 #include <GL/vms_x_fix.h>
  12 #endif
  13
  14 #if defined(__CYGWIN32__)
  15 #include <sys/time.h>
  16 #endif
  17
  18 #define SUPPORT_FORTRAN  /* With GLUT 3.7, everyone supports Fortran. */
  19
  20 #if defined(_WIN32)
  21 #include "glutwin32.h"
  22 #else
  23 #include <X11/Xlib.h>
  24 #include <X11/Xutil.h>
  25 #define GLX_GLXEXT_PROTOTYPES
  26 #include <GL/glx.h>
  27 #endif
  28
  29 #ifndef GLUT_BUILDING_LIB
  30 #define GLUT_BUILDING_LIB  /* Building the GLUT library itself. */
  31 #endif
  32
  33 #include <GL/glut.h>
  34
  35 #if defined(MESA) && defined(_WIN32) && !defined(__CYGWIN32__)
  36 #include <GL/mesa_wgl.h>
  37 #endif
  38
  39 #ifndef _WIN32
  40 /* added by BrianP: */
  41 #ifndef APIENTRY
  42 #define APIENTRY GLAPIENTRY
  43 #endif
  44 #define __cdecl GLAPIENTRY
  45 #define CDECL GLAPIENTRY
  46 #endif
  47
  48 /* GLUT_BUILDING_LIB is used by <GL/glut.h> to 1) not #pragma link
  49    with the GLUT library, and 2) avoid the Win32 atexit hack. */
  50
  51 /* This must be done after <GL/gl.h> is included.  MESA is defined
  52    if the <GL/gl.h> is supplied by Brian Paul's Mesa library. */
  53 #if defined(MESA) && defined(_WIN32)
  54 /* Mesa implements "wgl" versions of GDI entry points needed for
  55    using OpenGL.  Map these "wgl" versions to the GDI names via
  56    macros. */
  57 #define ChoosePixelFormat   wglChoosePixelFormat
  58 #define DescribePixelFormat wglDescribePixelFormat
  59 #define GetPixelFormat      wglGetPixelFormat
  60 #define SetPixelFormat      wglSetPixelFormat
  61 #define SwapBuffers         wglSwapBuffers
  62 #define GetCurrentContext   wglGetCurrentContext
  63 #define GetCurrentDC        wglGetCurrentDC
  64 #define MakeCurrent         wglMakeCurrent
  65 #define CreateContext       wglCreateContext
  66 #define DeleteContext       wglDeleteContext
  67 #endif /* MESA */
  68
  69 #ifdef SUPPORT_FORTRAN
  70 #include <GL/glutf90.h>
  71 #endif
  72
  73 #ifdef __vms
  74 #if ( __VMS_VER < 70000000 )
  75 #define OLD_VMS
  76 struct timeval6 {
  77   __int64 val;
  78 };
  79 extern int sys$gettim(struct timeval6 *);
  80 #else
  81 #include <time.h>
  82 #endif
  83 #else
  84 #include <sys/types.h>
  85 #if !defined(_WIN32) || defined(__CYGWIN32__)
  86 #include <sys/time.h>
  87 #else
  88 #include <winsock.h>
  89 #endif
  90 #endif
  91 #if defined(__vms) && ( __VMS_VER < 70000000 )
  92
  93 /* For VMS6.2 or lower :
  94    One TICK on VMS is 100 nanoseconds; 0.1 microseconds or
  95    0.0001 milliseconds. This means that there are 0.01
  96    ticks/ns, 10 ticks/us, 10,000 ticks/ms and 10,000,000
  97    ticks/second. */
  98
  99 #define TICKS_PER_MILLISECOND 10000
 100 #define TICKS_PER_SECOND      10000000
 101
 102 #define GETTIMEOFDAY(_x) (void) sys$gettim (_x);
 103
 104 #define ADD_TIME(dest, src1, src2) { \
 105   (dest).val = (src1).val + (src2).val; \
 106 }
 107
 108 #define TIMEDELTA(dest, src1, src2) { \
 109   (dest).val = (src1).val - (src2).val; \
 110 }
 111
 112 #define IS_AFTER(t1, t2) ((t2).val > (t1).val)
 113
 114 #define IS_AT_OR_AFTER(t1, t2) ((t2).val >= (t1).val)
 115
 116 #else
 117 #if defined(SVR4) && !defined(sun)  /* Sun claims SVR4, but
 118                                        wants 2 args. */
 119 #define GETTIMEOFDAY(_x) gettimeofday(_x)
 120 #else
 121 #define GETTIMEOFDAY(_x) gettimeofday(_x, NULL)
 122 #endif
 123 #define ADD_TIME(dest, src1, src2) { \
 124   if(((dest).tv_usec = \
 125     (src1).tv_usec + (src2).tv_usec) >= 1000000) { \
 126     (dest).tv_usec -= 1000000; \
 127     (dest).tv_sec = (src1).tv_sec + (src2).tv_sec + 1; \
 128   } else { \
 129     (dest).tv_sec = (src1).tv_sec + (src2).tv_sec; \
 130     if(((dest).tv_sec >= 1) && (((dest).tv_usec <0))) { \
 131       (dest).tv_sec --;(dest).tv_usec += 1000000; \
 132     } \
 133   } \
 134 }
 135 #define TIMEDELTA(dest, src1, src2) { \
 136   if(((dest).tv_usec = (src1).tv_usec - (src2).tv_usec) < 0) { \
 137     (dest).tv_usec += 1000000; \
 138     (dest).tv_sec = (src1).tv_sec - (src2).tv_sec - 1; \
 139   } else { \
 140      (dest).tv_sec = (src1).tv_sec - (src2).tv_sec; \
 141   } \
 142 }
 143 #define IS_AFTER(t1, t2) \
 144   (((t2).tv_sec > (t1).tv_sec) || \
 145   (((t2).tv_sec == (t1).tv_sec) && \
 146   ((t2).tv_usec > (t1).tv_usec)))
 147 #define IS_AT_OR_AFTER(t1, t2) \
 148   (((t2).tv_sec > (t1).tv_sec) || \
 149   (((t2).tv_sec == (t1).tv_sec) && \
 150   ((t2).tv_usec >= (t1).tv_usec)))
 151 #endif
 152
 153 #define IGNORE_IN_GAME_MODE() \
 154   { if (__glutGameModeWindow) return; }
 155
 156 #define GLUT_WIND_IS_RGB(x)         (((x) & GLUT_INDEX) == 0)
 157 #define GLUT_WIND_IS_INDEX(x)       (((x) & GLUT_INDEX) != 0)
 158 #define GLUT_WIND_IS_SINGLE(x)      (((x) & GLUT_DOUBLE) == 0)
 159 #define GLUT_WIND_IS_DOUBLE(x)      (((x) & GLUT_DOUBLE) != 0)
 160 #define GLUT_WIND_HAS_ACCUM(x)      (((x) & GLUT_ACCUM) != 0)
 161 #define GLUT_WIND_HAS_ALPHA(x)      (((x) & GLUT_ALPHA) != 0)
 162 #define GLUT_WIND_HAS_DEPTH(x)      (((x) & GLUT_DEPTH) != 0)
 163 #define GLUT_WIND_HAS_STENCIL(x)    (((x) & GLUT_STENCIL) != 0)
 164 #define GLUT_WIND_IS_MULTISAMPLE(x) (((x) & GLUT_MULTISAMPLE) != 0)
 165 #define GLUT_WIND_IS_STEREO(x)      (((x) & GLUT_STEREO) != 0)
 166 #define GLUT_WIND_IS_LUMINANCE(x)   (((x) & GLUT_LUMINANCE) != 0)
 167 #define GLUT_MAP_WORK               (1 << 0)
 168 #define GLUT_EVENT_MASK_WORK        (1 << 1)
 169 #define GLUT_REDISPLAY_WORK         (1 << 2)
 170 #define GLUT_CONFIGURE_WORK         (1 << 3)
 171 #define GLUT_COLORMAP_WORK          (1 << 4)
 172 #define GLUT_DEVICE_MASK_WORK       (1 << 5)
 173 #define GLUT_FINISH_WORK            (1 << 6)
 174 #define GLUT_DEBUG_WORK             (1 << 7)
 175 #define GLUT_DUMMY_WORK             (1 << 8)
 176 #define GLUT_FULL_SCREEN_WORK       (1 << 9)
 177 #define GLUT_OVERLAY_REDISPLAY_WORK (1 << 10)
 178 #define GLUT_REPAIR_WORK            (1 << 11)
 179 #define GLUT_OVERLAY_REPAIR_WORK    (1 << 12)
 180
 181 /* Frame buffer capability macros and types. */
 182 #define RGBA                    0
 183 #define BUFFER_SIZE             1
 184 #define DOUBLEBUFFER            2
 185 #define STEREO                  3
 186 #define AUX_BUFFERS             4
 187 #define RED_SIZE                5  /* Used as mask bit for
 188                                       "color selected". */
 189 #define GREEN_SIZE              6
 190 #define BLUE_SIZE               7
 191 #define ALPHA_SIZE              8
 192 #define DEPTH_SIZE              9
 193 #define STENCIL_SIZE            10
 194 #define ACCUM_RED_SIZE          11  /* Used as mask bit for
 195                                        "acc selected". */
 196 #define ACCUM_GREEN_SIZE        12
 197 #define ACCUM_BLUE_SIZE         13
 198 #define ACCUM_ALPHA_SIZE        14
 199 #define LEVEL                   15
 200
 201 #define NUM_GLXCAPS             (LEVEL + 1)
 202
 203 #define XVISUAL                 (NUM_GLXCAPS + 0)
 204 #define TRANSPARENT             (NUM_GLXCAPS + 1)
 205 #define SAMPLES                 (NUM_GLXCAPS + 2)
 206 #define XSTATICGRAY             (NUM_GLXCAPS + 3)  /* Used as
 207                                                       mask bit
 208                                                       for "any
 209                                                       visual type
 210                                                       selected". */
 211 #define XGRAYSCALE              (NUM_GLXCAPS + 4)
 212 #define XSTATICCOLOR            (NUM_GLXCAPS + 5)
 213 #define XPSEUDOCOLOR            (NUM_GLXCAPS + 6)
 214 #define XTRUECOLOR              (NUM_GLXCAPS + 7)
 215 #define XDIRECTCOLOR            (NUM_GLXCAPS + 8)
 216 #define SLOW                    (NUM_GLXCAPS + 9)
 217 #define CONFORMANT              (NUM_GLXCAPS + 10)
 218
 219 #define NUM_CAPS                (NUM_GLXCAPS + 11)
 220
 221 /* Frame buffer capablities that don't have a corresponding
 222    FrameBufferMode entry.  These get used as mask bits. */
 223 #define NUM                     (NUM_CAPS + 0)
 224 #define RGBA_MODE               (NUM_CAPS + 1)
 225 #define CI_MODE                 (NUM_CAPS + 2)
 226 #define LUMINANCE_MODE          (NUM_CAPS + 3)
 227
 228 #define NONE                    0
 229 #define EQ                      1
 230 #define NEQ                     2
 231 #define LTE                     3
 232 #define GTE                     4
 233 #define GT                      5
 234 #define LT                      6
 235 #define MIN                     7
 236
 237 typedef struct _Criterion {
 238   int capability;
 239   int comparison;
 240   int value;
 241 } Criterion;
 242
 243 typedef struct _FrameBufferMode {
 244   XVisualInfo *vi;
 245 #if defined(GLX_VERSION_1_1) && defined(GLX_SGIX_fbconfig)
 246
 247   /* fbc is non-NULL when the XVisualInfo* is not OpenGL-capable
 248      (ie, GLX_USE_GL is false), but the SGIX_fbconfig extension shows
 249      the visual's fbconfig is OpenGL-capable.  The reason for this is typically
 250      an RGBA luminance fbconfig such as 16-bit StaticGray that could
 251      not be advertised as a GLX visual since StaticGray visuals are
 252      required (by the GLX specification) to be color index.  The
 253      SGIX_fbconfig allows StaticGray visuals to instead advertised as
 254      fbconfigs that can provide RGBA luminance support. */
 255
 256   GLXFBConfigSGIX fbc;
 257 #endif
 258   int valid;
 259   int cap[NUM_CAPS];
 260 } FrameBufferMode;
 261
 262 /* DisplayMode capability macros for game mode. */
 263 #define DM_WIDTH        0  /* "width" */
 264 #define DM_HEIGHT       1  /* "height" */
 265 #define DM_PIXEL_DEPTH  2  /* "bpp" (bits per pixel) */
 266 #define DM_HERTZ        3  /* "hertz" */
 267 #define DM_NUM          4  /* "num" */
 268
 269 #define NUM_DM_CAPS     (DM_NUM+1)
 270
 271 typedef struct _DisplayMode {
 272 #ifdef _WIN32
 273   DEVMODE devmode;
 274 #else
 275   /* XXX The X Window System does not have a standard
 276      mechanism for display setting changes.  On SGI
 277      systems, GLUT could use the XSGIvc (SGI X video
 278      control extension).  Perhaps this can be done in
 279      a future release of GLUT. */
 280 #endif
 281   int valid;
 282   int cap[NUM_DM_CAPS];
 283 } DisplayMode;
 284
 285 /* GLUT  function types */
 286 typedef void (GLUTCALLBACK *GLUTdisplayCB) (void);
 287 typedef void (GLUTCALLBACK *GLUTreshapeCB) (int, int);
 288 typedef void (GLUTCALLBACK *GLUTkeyboardCB) (unsigned char, int, int);
 289 typedef void (GLUTCALLBACK *GLUTmouseCB) (int, int, int, int);
 290 typedef void (GLUTCALLBACK *GLUTmotionCB) (int, int);
 291 typedef void (GLUTCALLBACK *GLUTpassiveCB) (int, int);
 292 typedef void (GLUTCALLBACK *GLUTentryCB) (int);
 293 typedef void (GLUTCALLBACK *GLUTvisibilityCB) (int);
 294 typedef void (GLUTCALLBACK *GLUTwindowStatusCB) (int);
 295 typedef void (GLUTCALLBACK *GLUTidleCB) (void);
 296 typedef void (GLUTCALLBACK *GLUTtimerCB) (int);
 297 typedef void (GLUTCALLBACK *GLUTmenuStateCB) (int);  /* DEPRICATED. */
 298 typedef void (GLUTCALLBACK *GLUTmenuStatusCB) (int, int, int);
 299 typedef void (GLUTCALLBACK *GLUTselectCB) (int);
 300 typedef void (GLUTCALLBACK *GLUTspecialCB) (int, int, int);
 301 typedef void (GLUTCALLBACK *GLUTspaceMotionCB) (int, int, int);
 302 typedef void (GLUTCALLBACK *GLUTspaceRotateCB) (int, int, int);
 303 typedef void (GLUTCALLBACK *GLUTspaceButtonCB) (int, int);
 304 typedef void (GLUTCALLBACK *GLUTdialsCB) (int, int);
 305 typedef void (GLUTCALLBACK *GLUTbuttonBoxCB) (int, int);
 306 typedef void (GLUTCALLBACK *GLUTtabletMotionCB) (int, int);
 307 typedef void (GLUTCALLBACK *GLUTtabletButtonCB) (int, int, int, int);
 308 typedef void (GLUTCALLBACK *GLUTjoystickCB) (unsigned int buttonMask, int x, int y, int z);
 309
 310 typedef struct _GLUTcolorcell GLUTcolorcell;
 311 struct _GLUTcolorcell {
 312   /* GLUT_RED, GLUT_GREEN, GLUT_BLUE */
 313   GLfloat component[3];
 314 };
 315
 316 typedef struct _GLUTcolormap GLUTcolormap;
 317 struct _GLUTcolormap {
 318   Visual *visual;       /* visual of the colormap */
 319   Colormap cmap;        /* X colormap ID */
 320   int refcnt;           /* number of windows using colormap */
 321   int size;             /* number of cells in colormap */
 322   int transparent;      /* transparent pixel, or -1 if opaque */
 323   GLUTcolorcell *cells; /* array of cells */
 324   GLUTcolormap *next;   /* next colormap in list */
 325 };
 326
 327 typedef struct _GLUTwindow GLUTwindow;
 328 typedef struct _GLUToverlay GLUToverlay;
 329 struct _GLUTwindow {
 330   int num;              /* Small integer window id (0-based). */
 331
 332   /* Window system related state. */
 333 #if defined(_WIN32)
 334   int pf;               /* Pixel format. */
 335   HDC hdc;              /* Window's Win32 device context. */
 336 #endif
 337   Window win;           /* X window for GLUT window */
 338   GLXContext ctx;       /* OpenGL context GLUT glut window */
 339   XVisualInfo *vis;     /* visual for window */
 340   Bool visAlloced;      /* if vis needs deallocate on destroy */
 341   Colormap cmap;        /* RGB colormap for window; None if CI */
 342   GLUTcolormap *colormap;  /* colormap; NULL if RGBA */
 343   GLUToverlay *overlay; /* overlay; NULL if no overlay */
 344 #if defined(_WIN32)
 345   HDC renderDc;         /* Win32's device context for rendering. */
 346 #endif
 347   Window renderWin;     /* X window for rendering (might be
 348                            overlay) */
 349   GLXContext renderCtx; /* OpenGL context for rendering (might
 350                            be overlay) */
 351   /* GLUT settable or visible window state. */
 352   int width;            /* window width in pixels */
 353   int height;           /* window height in pixels */
 354   int cursor;           /* cursor name */
 355   int visState;         /* visibility state (-1 is unknown) */
 356   int shownState;       /* if window mapped */
 357   int entryState;       /* entry state (-1 is unknown) */
 358 #define GLUT_MAX_MENUS              3
 359
 360   int menu[GLUT_MAX_MENUS];  /* attatched menu nums */
 361   /* Window relationship state. */
 362   GLUTwindow *parent;   /* parent window */
 363   GLUTwindow *children; /* list of children */
 364   GLUTwindow *siblings; /* list of siblings */
 365   /* Misc. non-API visible (hidden) state. */
 366   Bool treatAsSingle;   /* treat this window as single-buffered
 367                            (it might be "fake" though) */
 368   Bool forceReshape;    /* force reshape before display */
 369 #if !defined(_WIN32)
 370   Bool isDirect;        /* if direct context (X11 only) */
 371 #endif
 372   Bool usedSwapBuffers; /* if swap buffers used last display */
 373   long eventMask;       /* mask of X events selected for */
 374   int buttonUses;       /* number of button uses, ref cnt */
 375   int tabletPos[2];     /* tablet position (-1 is invalid) */
 376   /* Work list related state. */
 377   unsigned int workMask;  /* mask of window work to be done */
 378   GLUTwindow *prevWorkWin;  /* link list of windows to work on */
 379   Bool desiredMapState; /* how to mapped window if on map work
 380                            list */
 381   Bool ignoreKeyRepeat;  /* if window ignores autorepeat */
 382   int desiredConfMask;  /* mask of desired window configuration
 383                          */
 384   int desiredX;         /* desired X location */
 385   int desiredY;         /* desired Y location */
 386   int desiredWidth;     /* desired window width */
 387   int desiredHeight;    /* desired window height */
 388   int desiredStack;     /* desired window stack */
 389   /* Per-window callbacks. */
 390   GLUTdisplayCB display;  /* redraw */
 391   GLUTreshapeCB reshape;  /* resize (width,height) */
 392   GLUTmouseCB mouse;    /* mouse (button,state,x,y) */
 393   GLUTmotionCB motion;  /* motion (x,y) */
 394   GLUTpassiveCB passive;  /* passive motion (x,y) */
 395   GLUTentryCB entry;    /* window entry/exit (state) */
 396   GLUTkeyboardCB keyboard;  /* keyboard (ASCII,x,y) */
 397   GLUTkeyboardCB keyboardUp;  /* keyboard up (ASCII,x,y) */
 398   GLUTwindowStatusCB windowStatus;  /* window status */
 399   GLUTvisibilityCB visibility;  /* visibility */
 400   GLUTspecialCB special;  /* special key */
 401   GLUTspecialCB specialUp;  /* special up key */
 402   GLUTbuttonBoxCB buttonBox;  /* button box */
 403   GLUTdialsCB dials;    /* dials */
 404   GLUTspaceMotionCB spaceMotion;  /* Spaceball motion */
 405   GLUTspaceRotateCB spaceRotate;  /* Spaceball rotate */
 406   GLUTspaceButtonCB spaceButton;  /* Spaceball button */
 407   GLUTtabletMotionCB tabletMotion;  /* tablet motion */
 408   GLUTtabletButtonCB tabletButton;  /* tablet button */
 409 #ifdef _WIN32
 410   GLUTjoystickCB joystick;  /* joystick */
 411   int joyPollInterval; /* joystick polling interval */
 412 #endif
 413 #ifdef SUPPORT_FORTRAN
 414   GLUTdisplayFCB fdisplay;  /* Fortran display  */
 415   GLUTreshapeFCB freshape;  /* Fortran reshape  */
 416   GLUTmouseFCB fmouse;  /* Fortran mouse  */
 417   GLUTmotionFCB fmotion;  /* Fortran motion  */
 418   GLUTpassiveFCB fpassive;  /* Fortran passive  */
 419   GLUTentryFCB fentry;  /* Fortran entry  */
 420   GLUTkeyboardFCB fkeyboard;  /* Fortran keyboard  */
 421   GLUTkeyboardFCB fkeyboardUp;  /* Fortran keyboard up */
 422   GLUTwindowStatusFCB fwindowStatus;  /* Fortran window status */
 423   GLUTvisibilityFCB fvisibility;  /* Fortran visibility */
 424   GLUTspecialFCB fspecial;  /* special key */
 425   GLUTspecialFCB fspecialUp;  /* special key up */
 426   GLUTbuttonBoxFCB fbuttonBox;  /* button box */
 427   GLUTdialsFCB fdials;  /* dials */
 428   GLUTspaceMotionFCB fspaceMotion;  /* Spaceball motion */
 429   GLUTspaceRotateFCB fspaceRotate;  /* Spaceball rotate */
 430   GLUTspaceButtonFCB fspaceButton;  /* Spaceball button */
 431   GLUTtabletMotionFCB ftabletMotion;  /* tablet motion */
 432   GLUTtabletButtonFCB ftabletButton;  /* tablet button */
 433 #ifdef _WIN32
 434   GLUTjoystickFCB fjoystick;  /* joystick */
 435 #endif
 436 #endif
 437 };
 438
 439 struct _GLUToverlay {
 440 #if defined(_WIN32)
 441   int pf;
 442   HDC hdc;
 443 #endif
 444   Window win;
 445   GLXContext ctx;
 446   XVisualInfo *vis;     /* visual for window */
 447   Bool visAlloced;      /* if vis needs deallocate on destroy */
 448   Colormap cmap;        /* RGB colormap for window; None if CI */
 449   GLUTcolormap *colormap;  /* colormap; NULL if RGBA */
 450   int shownState;       /* if overlay window mapped */
 451   Bool treatAsSingle;   /* treat as single-buffered */
 452 #if !defined(_WIN32)
 453   Bool isDirect;        /* if direct context */
 454 #endif
 455   int transparentPixel; /* transparent pixel value */
 456   GLUTdisplayCB display;  /* redraw  */
 457 #ifdef SUPPORT_FORTRAN
 458   GLUTdisplayFCB fdisplay;  /* redraw  */
 459 #endif
 460 };
 461
 462 typedef struct _GLUTstale GLUTstale;
 463 struct _GLUTstale {
 464   GLUTwindow *window;
 465   Window win;
 466   GLUTstale *next;
 467 };
 468
 469 extern GLUTstale *__glutStaleWindowList;
 470
 471 #define GLUT_OVERLAY_EVENT_FILTER_MASK \
 472   (ExposureMask | \
 473   StructureNotifyMask | \
 474   EnterWindowMask | \
 475   LeaveWindowMask)
 476 #define GLUT_DONT_PROPAGATE_FILTER_MASK \
 477   (ButtonReleaseMask | \
 478   ButtonPressMask | \
 479   KeyPressMask | \
 480   KeyReleaseMask | \
 481   PointerMotionMask | \
 482   Button1MotionMask | \
 483   Button2MotionMask | \
 484   Button3MotionMask)
 485 #define GLUT_HACK_STOP_PROPAGATE_MASK \
 486   (KeyPressMask | \
 487   KeyReleaseMask)
 488
 489 typedef struct _GLUTmenu GLUTmenu;
 490 typedef struct _GLUTmenuItem GLUTmenuItem;
 491 struct _GLUTmenu {
 492   int id;               /* small integer menu id (0-based) */
 493   Window win;           /* X window for the menu */
 494   GLUTselectCB select;  /*  function of menu */
 495   GLUTmenuItem *list;   /* list of menu entries */
 496   int num;              /* number of entries */
 497 #if !defined(_WIN32)
 498   Bool managed;         /* are the InputOnly windows size
 499                            validated? */
 500   Bool searched;        /* help detect menu loops */
 501   int pixheight;        /* height of menu in pixels */
 502   int pixwidth;         /* width of menu in pixels */
 503 #endif
 504   int submenus;         /* number of submenu entries */
 505   GLUTmenuItem *highlighted;  /* pointer to highlighted menu
 506                                  entry, NULL not highlighted */
 507   GLUTmenu *cascade;    /* currently cascading this menu  */
 508   GLUTmenuItem *anchor; /* currently anchored to this entry */
 509   int x;                /* current x origin relative to the
 510                            root window */
 511   int y;                /* current y origin relative to the
 512                            root window */
 513 #ifdef SUPPORT_FORTRAN
 514   GLUTselectFCB fselect;  /*  function of menu */
 515 #endif
 516 };
 517
 518 struct _GLUTmenuItem {
 519   Window win;           /* InputOnly X window for entry */
 520   GLUTmenu *menu;       /* menu entry belongs to */
 521   Bool isTrigger;       /* is a submenu trigger? */
 522   int value;            /* value to return for selecting this
 523                            entry; doubles as submenu id
 524                            (0-base) if submenu trigger */
 525 #if defined(_WIN32)
 526   UINT unique;          /* unique menu item id (Win32 only) */
 527 #endif
 528   char *label;          /* __glutStrdup'ed label string */
 529   int len;              /* length of label string */
 530   int pixwidth;         /* width of X window in pixels */
 531   GLUTmenuItem *next;   /* next menu entry on list for menu */
 532 };
 533
 534 typedef struct _GLUTtimer GLUTtimer;
 535 struct _GLUTtimer {
 536   GLUTtimer *next;      /* list of timers */
 537 #ifdef OLD_VMS
 538    struct timeval6 timeout;  /* time to be called */
 539 #else
 540    struct timeval timeout;  /* time to be called */
 541 #endif
 542    GLUTtimerCB func;     /* timer  (value) */
 543   int value;            /*  return value */
 544 #ifdef SUPPORT_FORTRAN
 545   GLUTtimerFCB ffunc;   /* Fortran timer  */
 546 #endif
 547 };
 548
 549 typedef struct _GLUTeventParser GLUTeventParser;
 550 struct _GLUTeventParser {
 551   int (*func) (XEvent *);
 552   GLUTeventParser *next;
 553 };
 554
 555 /* Declarations to implement glutFullScreen support with
 556    mwm/4Dwm. */
 557
 558 /* The following X property format is defined in Motif 1.1's
 559    Xm/MwmUtils.h, but GLUT should not depend on that header
 560    file. Note: Motif 1.2 expanded this structure with
 561    uninteresting fields (to GLUT) so just stick with the
 562    smaller Motif 1.1 structure. */
 563 typedef struct {
 564 #define MWM_HINTS_DECORATIONS   2
 565   long flags;
 566   long functions;
 567   long decorations;
 568   long input_mode;
 569 } MotifWmHints;
 570
 571 /* Make current and buffer swap macros. */
 572 #ifdef _WIN32
 573 #define MAKE_CURRENT_LAYER(window)                                    \
 574   {                                                                   \
 575     HGLRC currentContext = GetCurrentContext();                       \
 576     HDC currentDc = GetCurrentDC();                                   \
 577                                                                       \
 578     if (currentContext != window->renderCtx                           \
 579       || currentDc != window->renderDc) {                             \
 580       MakeCurrent(window->renderDc, window->renderCtx);               \
 581     }                                                                 \
 582   }
 583 #define MAKE_CURRENT_WINDOW(window)                                   \
 584   {                                                                   \
 585     HGLRC currentContext = GetCurrentContext();                       \
 586     HDC currentDc = GetCurrentDC();                                   \
 587                                                                       \
 588     if (currentContext != window->ctx || currentDc != window->hdc) {  \
 589       MakeCurrent(window->hdc, window->ctx);                          \
 590     }                                                                 \
 591   }
 592 #define MAKE_CURRENT_OVERLAY(overlay) \
 593   MakeCurrent(overlay->hdc, overlay->ctx)
 594 #define UNMAKE_CURRENT() \
 595   MakeCurrent(NULL, NULL)
 596 #define SWAP_BUFFERS_WINDOW(window) \
 597   SwapBuffers(window->hdc)
 598 #define SWAP_BUFFERS_LAYER(window) \
 599   SwapBuffers(window->renderDc)
 600 #else
 601 #define MAKE_CURRENT_LAYER(window) \
 602   glXMakeCurrent(__glutDisplay, window->renderWin, window->renderCtx)
 603 #define MAKE_CURRENT_WINDOW(window) \
 604   glXMakeCurrent(__glutDisplay, window->win, window->ctx)
 605 #define MAKE_CURRENT_OVERLAY(overlay) \
 606   glXMakeCurrent(__glutDisplay, overlay->win, overlay->ctx)
 607 #define UNMAKE_CURRENT() \
 608   glXMakeCurrent(__glutDisplay, None, NULL)
 609 #define SWAP_BUFFERS_WINDOW(window) \
 610   glXSwapBuffers(__glutDisplay, window->win)
 611 #define SWAP_BUFFERS_LAYER(window) \
 612   glXSwapBuffers(__glutDisplay, window->renderWin)
 613 #endif
 614
 615 /* private variables from glut_event.c */
 616 extern GLUTwindow *__glutWindowWorkList;
 617 extern int __glutWindowDamaged;
 618 #ifdef SUPPORT_FORTRAN
 619 extern GLUTtimer *__glutTimerList;
 620 extern GLUTtimer *__glutNewTimer;
 621 #endif
 622 extern GLUTmenu *__glutMappedMenu;
 623
 624 extern void (*__glutUpdateInputDeviceMaskFunc) (GLUTwindow *);
 625 #if !defined(_WIN32)
 626 extern void (*__glutMenuItemEnterOrLeave)(GLUTmenuItem * item,
 627   int num, int type);
 628 extern void (*__glutFinishMenu)(Window win, int x, int y);
 629 extern void (*__glutPaintMenu)(GLUTmenu * menu);
 630 extern void (*__glutStartMenu)(GLUTmenu * menu,
 631   GLUTwindow * window, int x, int y, int x_win, int y_win);
 632 extern GLUTmenu * (*__glutGetMenuByNum)(int menunum);
 633 extern GLUTmenuItem * (*__glutGetMenuItem)(GLUTmenu * menu,
 634   Window win, int *which);
 635 extern GLUTmenu * (*__glutGetMenu)(Window win);
 636 #endif
 637
 638 /* private variables from glut_init.c */
 639 extern Atom __glutWMDeleteWindow;
 640 extern Display *__glutDisplay;
 641 extern unsigned int __glutDisplayMode;
 642 extern char *__glutDisplayString;
 643 extern XVisualInfo *(*__glutDetermineVisualFromString) (char *string, Bool * treatAsSingle,
 644   Criterion * requiredCriteria, int nRequired, int requiredMask, void **fbc);
 645 extern GLboolean __glutDebug;
 646 extern GLboolean __glutForceDirect;
 647 extern GLboolean __glutIconic;
 648 extern GLboolean __glutTryDirect;
 649 extern Window __glutRoot;
 650 extern XSizeHints __glutSizeHints;
 651 extern char **__glutArgv;
 652 extern char *__glutProgramName;
 653 extern int __glutArgc;
 654 extern int __glutConnectionFD;
 655 extern int __glutInitHeight;
 656 extern int __glutInitWidth;
 657 extern int __glutInitX;
 658 extern int __glutInitY;
 659 extern int __glutScreen;
 660 extern int __glutScreenHeight;
 661 extern int __glutScreenWidth;
 662 extern Atom __glutMotifHints;
 663 extern unsigned int __glutModifierMask;
 664 #ifdef _WIN32
 665 extern void (__cdecl *__glutExitFunc)(int retval);
 666 #endif
 667 extern char *__glutPPMFile;
 668
 669 /* private variables from glut_menu.c */
 670 extern GLUTmenuItem *__glutItemSelected;
 671 extern GLUTmenu **__glutMenuList;
 672 extern void (GLUTCALLBACK *__glutMenuStatusFunc) (int, int, int);
 673 extern void __glutMenuModificationError(void);
 674 extern void __glutSetMenuItem(GLUTmenuItem * item,
 675   const char *label, int value, Bool isTrigger);
 676
 677 /* private variables from glut_win.c */
 678 extern GLUTwindow **__glutWindowList;
 679 extern GLUTwindow *__glutCurrentWindow;
 680 extern GLUTwindow *__glutMenuWindow;
 681 extern GLUTmenu *__glutCurrentMenu;
 682 extern int __glutWindowListSize;
 683 extern void (*__glutFreeOverlayFunc) (GLUToverlay *);
 684 extern void __glutFreeOverlay(GLUToverlay * overlay);
 685 extern XVisualInfo *__glutDetermineWindowVisual(Bool * treatAsSingle,
 686   Bool * visAlloced, void **fbc);
 687
 688 /* private variables from glut_ppm.c */
 689 extern void __glutWritePPMFile(void);
 690
 691 /* private variables from glut_mesa.c */
 692 extern int __glutMesaSwapHackSupport;
 693
 694 /* private variables from glut_gamemode.c */
 695 extern GLUTwindow *__glutGameModeWindow;
 696
 697 /* private routines from glut_cindex.c */
 698 extern GLUTcolormap * __glutAssociateNewColormap(XVisualInfo * vis);
 699 extern void __glutFreeColormap(GLUTcolormap *);
 700
 701 /* private routines from glut_cmap.c */
 702 extern void __glutSetupColormap(
 703   XVisualInfo * vi,
 704   GLUTcolormap ** colormap,
 705   Colormap * cmap);
 706 #if !defined(_WIN32)
 707 extern void __glutEstablishColormapsProperty(
 708   GLUTwindow * window);
 709 extern GLUTwindow *__glutToplevelOf(GLUTwindow * window);
 710 #endif
 711
 712 /* private routines from glut_cursor.c */
 713 extern void __glutSetCursor(GLUTwindow *window);
 714
 715 /* private routines from glut_event.c */
 716 extern void __glutPutOnWorkList(GLUTwindow * window,
 717   int work_mask);
 718 extern void __glutRegisterEventParser(GLUTeventParser * parser);
 719 extern void __glutPostRedisplay(GLUTwindow * window, int layerMask);
 720 extern void handleTimeouts(void);
 721
 722 /* private routines from glut_init.c */
 723 #if !defined(_WIN32)
 724 extern void __glutOpenXConnection(char *display);
 725 #else
 726 extern void __glutOpenWin32Connection(char *display);
 727 #endif
 728 #ifdef OLD_VMS
 729 extern void __glutInitTime(struct timeval6 *beginning);
 730 #else
 731 extern void __glutInitTime(struct timeval *beginning);
 732 #endif
 733
 734 /* private routines for glut_menu.c (or win32_menu.c) */
 735 #if defined(_WIN32)
 736 extern GLUTmenu *__glutGetMenu(Window win);
 737 extern GLUTmenu *__glutGetMenuByNum(int menunum);
 738 extern GLUTmenuItem *__glutGetMenuItem(GLUTmenu * menu,
 739   Window win, int *which);
 740 extern void __glutStartMenu(GLUTmenu * menu,
 741   GLUTwindow * window, int x, int y, int x_win, int y_win);
 742 extern void __glutFinishMenu(Window win, int x, int y);
 743 #endif
 744 extern void __glutSetMenu(GLUTmenu * menu);
 745
 746 /* private routines from glut_util.c */
 747 extern char * __glutStrdup(const char *string);
 748 extern void __glutWarning(char *format,...);
 749 extern void __glutFatalError(char *format,...);
 750 extern void __glutFatalUsage(char *format,...);
 751
 752 /* private routines from glut_win.c */
 753 extern GLUTwindow *__glutGetWindow(Window win);
 754 extern void __glutChangeWindowEventMask(long mask, Bool add);
 755 extern XVisualInfo *__glutDetermineVisual(
 756   unsigned int mode,
 757   Bool * fakeSingle,
 758   XVisualInfo * (getVisualInfo) (unsigned int));
 759 extern XVisualInfo *__glutGetVisualInfo(unsigned int mode);
 760 extern void __glutSetWindow(GLUTwindow * window);
 761 extern void __glutReshapeFunc(GLUTreshapeCB reshapeFunc,
 762   int callingConvention);
 763 extern void GLUTCALLBACK __glutDefaultReshape(int, int);
 764 extern GLUTwindow *__glutCreateWindow(
 765   GLUTwindow * parent,
 766   int x, int y, int width, int height, int gamemode);
 767 extern void __glutDestroyWindow(
 768   GLUTwindow * window,
 769   GLUTwindow * initialWindow);
 770
 771 #if !defined(_WIN32)
 772 /* private routines from glut_glxext.c */
 773 extern int __glutIsSupportedByGLX(char *);
 774 extern int __glut_glXBindChannelToWindowSGIX(Display *dpy, int screen,
 775                                              int channel, Window window);
 776 extern int __glut_glXChannelRectSGIX(Display *dpy, int screen, int channel,
 777                                      int x, int y, int w, int h);
 778 extern int __glut_glXQueryChannelRectSGIX(Display *dpy, int screen,
 779                                           int channel, int *x, int *y,
 780                                           int *w, int *h);
 781 extern int __glut_glXQueryChannelDeltasSGIX(Display *dpy, int screen,
 782                                             int channel, int *dx, int *dy,
 783                                             int *dw, int *dh);
 784 extern int __glut_glXChannelRectSyncSGIX(Display *dpy, int screen, int channel,
 785                                          GLenum synctype);
 786 extern GLXContext __glut_glXCreateContextWithConfigSGIX(Display *dpy,
 787                                                         GLXFBConfigSGIX config,
 788                                                         int render_type,
 789                                                         GLXContext share_list,
 790                                                         Bool direct);
 791 extern int __glut_glXGetFBConfigAttribSGIX(Display *dpy,
 792                                            GLXFBConfigSGIX config,
 793                                            int attribute,
 794                                            int *value);
 795 extern GLXFBConfigSGIX __glut_glXGetFBConfigFromVisualSGIX(Display *dpy,
 796                                                            XVisualInfo *vis);
 797 #endif
 798
 799 /* private routines from glut_input.c */
 800 extern void  __glutUpdateInputDeviceMask(GLUTwindow * window);
 801
 802 /* private routines from glut_mesa.c */
 803 extern void __glutDetermineMesaSwapHackSupport(void);
 804
 805 /* private routines from glut_gameglut.c */
 806 extern void __glutCloseDownGameMode(void);
 807
 808 /* private variables from glut_swap.c (BrianP) */
 809 extern GLint __glutFPS;
 810 extern GLint __glutSwapCount;
 811 extern GLint __glutSwapTime;
 812
 813 #if defined(_WIN32)
 814 /* private routines from win32_*.c */
 815 extern LONG WINAPI __glutWindowProc(HWND win, UINT msg, WPARAM w, LPARAM l);
 816 extern HDC XHDC;
 817 #endif
 818
 819
 820 #endif /* __glutint_h__ */