--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/freeglut/include/GL/freeglut_ext.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,281 @@
+#ifndef  __FREEGLUT_EXT_H__
+#define  __FREEGLUT_EXT_H__
+
+/*
+ * freeglut_ext.h
+ *
+ * The non-GLUT-compatible extensions to the freeglut library include file
+ *
+ * Copyright (c) 1999-2000 Pawel W. Olszta. All Rights Reserved.
+ * Written by Pawel W. Olszta, <olszta@sourceforge.net>
+ * Creation date: Thu Dec 2 1999
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifdef __cplusplus
+    extern "C" {
+#endif
+
+/*
+ * Additional GLUT Key definitions for the Special key function
+ */
+#define GLUT_KEY_NUM_LOCK           0x006D
+#define GLUT_KEY_BEGIN              0x006E
+#define GLUT_KEY_DELETE             0x006F
+#define GLUT_KEY_SHIFT_L            0x0070
+#define GLUT_KEY_SHIFT_R            0x0071
+#define GLUT_KEY_CTRL_L             0x0072
+#define GLUT_KEY_CTRL_R             0x0073
+#define GLUT_KEY_ALT_L              0x0074
+#define GLUT_KEY_ALT_R              0x0075
+
+/*
+ * GLUT API Extension macro definitions -- behaviour when the user clicks on an "x" to close a window
+ */
+#define GLUT_ACTION_EXIT                         0
+#define GLUT_ACTION_GLUTMAINLOOP_RETURNS         1
+#define GLUT_ACTION_CONTINUE_EXECUTION           2
+
+/*
+ * Create a new rendering context when the user opens a new window?
+ */
+#define GLUT_CREATE_NEW_CONTEXT                  0
+#define GLUT_USE_CURRENT_CONTEXT                 1
+
+/*
+ * Direct/Indirect rendering context options (has meaning only in Unix/X11)
+ */
+#define GLUT_FORCE_INDIRECT_CONTEXT              0
+#define GLUT_ALLOW_DIRECT_CONTEXT                1
+#define GLUT_TRY_DIRECT_CONTEXT                  2
+#define GLUT_FORCE_DIRECT_CONTEXT                3
+
+/*
+ * GLUT API Extension macro definitions -- the glutGet parameters
+ */
+#define  GLUT_INIT_STATE                    0x007C
+
+#define  GLUT_ACTION_ON_WINDOW_CLOSE        0x01F9
+
+#define  GLUT_WINDOW_BORDER_WIDTH           0x01FA
+#define  GLUT_WINDOW_BORDER_HEIGHT          0x01FB
+#define  GLUT_WINDOW_HEADER_HEIGHT          0x01FB  /* Docs say it should always have been GLUT_WINDOW_BORDER_HEIGHT, keep this for backward compatibility */
+
+#define  GLUT_VERSION                       0x01FC
+
+#define  GLUT_RENDERING_CONTEXT             0x01FD
+#define  GLUT_DIRECT_RENDERING              0x01FE
+
+#define  GLUT_FULL_SCREEN                   0x01FF
+
+#define  GLUT_SKIP_STALE_MOTION_EVENTS      0x0204
+
+#define  GLUT_GEOMETRY_VISUALIZE_NORMALS    0x0205
+
+#define  GLUT_STROKE_FONT_DRAW_JOIN_DOTS    0x0206  /* Draw dots between line segments of stroke fonts? */
+
+/*
+ * New tokens for glutInitDisplayMode.
+ * Only one GLUT_AUXn bit may be used at a time.
+ * Value 0x0400 is defined in OpenGLUT.
+ */
+#define  GLUT_AUX                           0x1000
+
+#define  GLUT_AUX1                          0x1000
+#define  GLUT_AUX2                          0x2000
+#define  GLUT_AUX3                          0x4000
+#define  GLUT_AUX4                          0x8000
+
+/*
+ * Context-related flags, see fg_state.c
+ * Set the requested OpenGL version
+ */
+#define  GLUT_INIT_MAJOR_VERSION            0x0200
+#define  GLUT_INIT_MINOR_VERSION            0x0201
+#define  GLUT_INIT_FLAGS                    0x0202
+#define  GLUT_INIT_PROFILE                  0x0203
+
+/*
+ * Flags for glutInitContextFlags, see fg_init.c
+ */
+#define  GLUT_DEBUG                         0x0001
+#define  GLUT_FORWARD_COMPATIBLE            0x0002
+
+
+/*
+ * Flags for glutInitContextProfile, see fg_init.c
+ */
+#define GLUT_CORE_PROFILE                   0x0001
+#define	GLUT_COMPATIBILITY_PROFILE          0x0002
+
+/*
+ * Process loop function, see fg_main.c
+ */
+FGAPI void    FGAPIENTRY glutMainLoopEvent( void );
+FGAPI void    FGAPIENTRY glutLeaveMainLoop( void );
+FGAPI void    FGAPIENTRY glutExit         ( void );
+
+/*
+ * Window management functions, see fg_window.c
+ */
+FGAPI void    FGAPIENTRY glutFullScreenToggle( void );
+FGAPI void    FGAPIENTRY glutLeaveFullScreen( void );
+
+/*
+ * Menu functions
+ */
+FGAPI void    FGAPIENTRY glutSetMenuFont( int menuID, void* font );
+
+/*
+ * Window-specific callback functions, see fg_callbacks.c
+ */
+FGAPI void    FGAPIENTRY glutKeyboardExtFunc( void (* callback)( int, int, int ) );
+FGAPI void    FGAPIENTRY glutMouseWheelFunc( void (* callback)( int, int, int, int ) );
+FGAPI void    FGAPIENTRY glutPositionFunc( void (* callback)( int, int ) );
+FGAPI void    FGAPIENTRY glutCloseFunc( void (* callback)( void ) );
+FGAPI void    FGAPIENTRY glutWMCloseFunc( void (* callback)( void ) );
+/* And also a destruction callback for menus */
+FGAPI void    FGAPIENTRY glutMenuDestroyFunc( void (* callback)( void ) );
+
+/*
+ * State setting and retrieval functions, see fg_state.c
+ */
+FGAPI void    FGAPIENTRY glutSetOption ( GLenum option_flag, int value );
+FGAPI int *   FGAPIENTRY glutGetModeValues(GLenum mode, int * size);
+/* A.Donev: User-data manipulation */
+FGAPI void*   FGAPIENTRY glutGetWindowData( void );
+FGAPI void    FGAPIENTRY glutSetWindowData(void* data);
+FGAPI void*   FGAPIENTRY glutGetMenuData( void );
+FGAPI void    FGAPIENTRY glutSetMenuData(void* data);
+
+/*
+ * Clipboard access
+ */
+#define GLUT_CLIPBOARD 0
+#define GLUT_PRIMARY 1
+#define GLUT_SECONDARY 2
+FGAPI void         FGAPIENTRY glutSetClipboard(int selection, const char *string);
+FGAPI const char * FGAPIENTRY glutGetClipboard(int selection);
+
+/*
+ * Font stuff, see fg_font.c
+ */
+FGAPI int     FGAPIENTRY glutBitmapHeight( void* font );
+FGAPI GLfloat FGAPIENTRY glutStrokeHeight( void* font );
+FGAPI void    FGAPIENTRY glutBitmapString( void* font, const unsigned char *string );
+FGAPI void    FGAPIENTRY glutStrokeString( void* font, const unsigned char *string );
+
+/*
+ * Geometry functions, see fg_geometry.c
+ */
+FGAPI void    FGAPIENTRY glutWireRhombicDodecahedron( void );
+FGAPI void    FGAPIENTRY glutSolidRhombicDodecahedron( void );
+FGAPI void    FGAPIENTRY glutWireSierpinskiSponge ( int num_levels, double offset[3], double scale );
+FGAPI void    FGAPIENTRY glutSolidSierpinskiSponge ( int num_levels, double offset[3], double scale );
+FGAPI void    FGAPIENTRY glutWireCylinder( double radius, double height, GLint slices, GLint stacks);
+FGAPI void    FGAPIENTRY glutSolidCylinder( double radius, double height, GLint slices, GLint stacks);
+
+/*
+ * Rest of functions for rendering Newell's teaset, found in fg_teapot.c
+ * NB: front facing polygons have clockwise winding, not counter clockwise
+ */
+FGAPI void    FGAPIENTRY glutWireTeacup( double size );
+FGAPI void    FGAPIENTRY glutSolidTeacup( double size );
+FGAPI void    FGAPIENTRY glutWireTeaspoon( double size );
+FGAPI void    FGAPIENTRY glutSolidTeaspoon( double size );
+
+/*
+ * Extension functions, see fg_ext.c
+ */
+typedef void (*GLUTproc)();
+FGAPI GLUTproc FGAPIENTRY glutGetProcAddress( const char *procName );
+
+/*
+ * Multi-touch/multi-pointer extensions
+ */
+
+#define GLUT_HAS_MULTI 1
+
+/* TODO: add device_id parameter,
+   cf. http://sourceforge.net/mailarchive/forum.php?thread_name=20120518071314.GA28061%40perso.beuc.net&forum_name=freeglut-developer */
+FGAPI void FGAPIENTRY glutMultiEntryFunc( void (* callback)( int, int ) );
+FGAPI void FGAPIENTRY glutMultiButtonFunc( void (* callback)( int, int, int, int, int ) );
+FGAPI void FGAPIENTRY glutMultiMotionFunc( void (* callback)( int, int, int ) );
+FGAPI void FGAPIENTRY glutMultiPassiveFunc( void (* callback)( int, int, int ) );
+
+/*
+ * Joystick functions, see fg_joystick.c
+ */
+/* USE OF THESE FUNCTIONS IS DEPRECATED !!!!! */
+/* If you have a serious need for these functions in your application, please either
+ * contact the "freeglut" developer community at freeglut-developer@lists.sourceforge.net,
+ * switch to the OpenGLUT library, or else port your joystick functionality over to PLIB's
+ * "js" library.
+ */
+int     glutJoystickGetNumAxes( int ident );
+int     glutJoystickGetNumButtons( int ident );
+int     glutJoystickNotWorking( int ident );
+float   glutJoystickGetDeadBand( int ident, int axis );
+void    glutJoystickSetDeadBand( int ident, int axis, float db );
+float   glutJoystickGetSaturation( int ident, int axis );
+void    glutJoystickSetSaturation( int ident, int axis, float st );
+void    glutJoystickSetMinRange( int ident, float *axes );
+void    glutJoystickSetMaxRange( int ident, float *axes );
+void    glutJoystickSetCenter( int ident, float *axes );
+void    glutJoystickGetMinRange( int ident, float *axes );
+void    glutJoystickGetMaxRange( int ident, float *axes );
+void    glutJoystickGetCenter( int ident, float *axes );
+
+/*
+ * Initialization functions, see fg_init.c
+ */
+/* to get the typedef for va_list */
+#include <stdarg.h>
+FGAPI void    FGAPIENTRY glutInitContextVersion( int majorVersion, int minorVersion );
+FGAPI void    FGAPIENTRY glutInitContextFlags( int flags );
+FGAPI void    FGAPIENTRY glutInitContextProfile( int profile );
+FGAPI void    FGAPIENTRY glutInitErrorFunc( void (* callback)( const char *fmt, va_list ap ) );
+FGAPI void    FGAPIENTRY glutInitWarningFunc( void (* callback)( const char *fmt, va_list ap ) );
+
+/* OpenGL >= 2.0 support */
+FGAPI void    FGAPIENTRY glutSetVertexAttribCoord3(GLint attrib);
+FGAPI void    FGAPIENTRY glutSetVertexAttribNormal(GLint attrib);
+FGAPI void    FGAPIENTRY glutSetVertexAttribTexCoord2(GLint attrib);
+
+/* Mobile platforms lifecycle */
+FGAPI void    FGAPIENTRY glutInitContextFunc(void (* callback)());
+FGAPI void    FGAPIENTRY glutAppStatusFunc(void (* callback)(int));
+/* state flags that can be passed to callback set by glutAppStatusFunc */
+#define GLUT_APPSTATUS_PAUSE                0x0001
+#define GLUT_APPSTATUS_RESUME               0x0002
+
+/*
+ * GLUT API macro definitions -- the display mode definitions
+ */
+#define  GLUT_CAPTIONLESS                   0x0400
+#define  GLUT_BORDERLESS                    0x0800
+#define  GLUT_SRGB                          0x1000
+
+#ifdef __cplusplus
+    }
+#endif
+
+/*** END OF FILE ***/
+
+#endif /* __FREEGLUT_EXT_H__ */