src/libs/glut/glutint.h

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