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