/* xscreensaver, Copyright (c) 1992-2021 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation. No representations are made about the suitability of this
* software for any purpose. It is provided "as is" without express or
* implied warranty.
*/
/* Found in Don Hopkins' .plan file:
*
* The color situation is a total flying circus. The X approach to
* device independence is to treat everything like a MicroVax framebuffer
* on acid. A truely portable X application is required to act like the
* persistent customer in the Monty Python ``Cheese Shop'' sketch. Even
* the simplest applications must answer many difficult questions, like:
*
* WHAT IS YOUR DISPLAY?
* display = XOpenDisplay("unix:0");
* WHAT IS YOUR ROOT?
* root = RootWindow(display, DefaultScreen(display));
* AND WHAT IS YOUR WINDOW?
* win = XCreateSimpleWindow(display, root, 0, 0, 256, 256, 1,
* BlackPixel(display, DefaultScreen(display)),
* WhitePixel(display, DefaultScreen(display)))
* OH ALL RIGHT, YOU CAN GO ON.
*
* WHAT IS YOUR DISPLAY?
* display = XOpenDisplay("unix:0");
* WHAT IS YOUR COLORMAP?
* cmap = DefaultColormap(display, DefaultScreen(display));
* AND WHAT IS YOUR FAVORITE COLOR?
* favorite_color = 0; / * Black. * /
* / * Whoops! No, I mean: * /
* favorite_color = BlackPixel(display, DefaultScreen(display));
* / * AAAYYYYEEEEE!! (client dumps core & falls into the chasm) * /
*
* WHAT IS YOUR DISPLAY?
* display = XOpenDisplay("unix:0");
* WHAT IS YOUR VISUAL?
* struct XVisualInfo vinfo;
* if (XMatchVisualInfo(display, DefaultScreen(display),
* 8, PseudoColor, &vinfo) != 0)
* visual = vinfo.visual;
* AND WHAT IS THE NET SPEED VELOCITY OF AN XConfigureWindow REQUEST?
* / * Is that a SubStructureRedirectMask or a ResizeRedirectMask? * /
* WHAT?! HOW AM I SUPPOSED TO KNOW THAT?
* AAAAUUUGGGHHH!!!! (server dumps core & falls into the chasm)
*/
#ifndef __SCREENHACK_I_H__
#define __SCREENHACK_I_H__
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif /* HAVE_CONFIG_H */
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <time.h>
#ifdef __hpux
/* Which of the ten billion standards does values.h belong to?
What systems always have it? */
# include <values.h>
#endif
#ifdef HAVE_JWXYZ
# include "jwxyz.h"
# include <string.h> /* X11/Xos.h brings this in. */
#else /* real X11 */
# include <X11/Xlib.h>
# include <X11/Xutil.h>
# include <X11/Xresource.h>
# include <X11/Xos.h>
#endif /* !HAVE_JWXYZ */
#ifdef HAVE_JWXYZ
# define DEFAULT_VISUAL -1 /* From utils/visual.c. */
# define GL_VISUAL -6
#endif /* HAVE_JWXYZ */
#ifdef USE_GL
/* I'm told that the Sun version of OpenGL needs to have the constant
SUN_OGL_NO_VERTEX_MACROS defined in order for morph3d to compile
(the number of arguments to the glNormal3f macro changes...)
Verified with gcc 2.7.2.2 and Sun cc 4.2 with OpenGL 1.1.1 dev 4
on Solaris 2.5.1.
*/
# if defined(__sun) && defined(__SVR4) /* Solaris */
# define SUN_OGL_NO_VERTEX_MACROS 1
# endif /* Solaris */
# ifdef HAVE_GLSL
# define GL_GLEXT_PROTOTYPES
# endif
# if defined(HAVE_COCOA) && !defined(HAVE_IPHONE) /* macOS */
# include <OpenGL/gl.h>
# include <OpenGL/glu.h>
# elif defined(HAVE_IPHONE)
# ifdef HAVE_GLES3
# include "OpenGLES/ES3/gl.h"
# endif
# elif defined(HAVE_ANDROID)
# include <GLES/gl.h>
# ifdef HAVE_GLES3
# include <GLES3/gl3.h>
# endif
# else /* real X11 */
# include <GL/gl.h>
# include <GL/glu.h>
# ifdef HAVE_EGL
# include <EGL/egl.h>
# include <EGL/eglext.h>
# else
# include <GL/glx.h>
# endif
# endif
# ifdef HAVE_JWZGLES
# include "jwzgles.h"
# endif
#endif /* HAVE_GL */
#if defined(HAVE_IPHONE) || defined(HAVE_ANDROID)
# define HAVE_MOBILE
#endif
#ifdef HAVE_ANDROID
/* So that hacks' debug output shows up in logcat... */
# undef fprintf
# define fprintf(S, ...) Log(__VA_ARGS__)
#endif
/* M_PI ought to have been defined in math.h, but... */
#ifndef M_PI
# define M_PI 3.1415926535
#endif
#ifndef M_PI_2
# define M_PI_2 1.5707963267
#endif
#ifndef Button6
# define Button6 6
# define Button7 7
#endif
#include "yarandom.h"
#include "usleep.h"
#include "resources.h"
#include "hsv.h"
#include "colors.h"
#include "grabscreen.h"
#include "visual.h"
#include "fps.h"
#include "xft.h"
#include "font-retry.h"
#ifdef HAVE_RECORD_ANIM
# include "recanim.h"
#endif
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
#define RANDSIGN() ((random() & 1) ? 1 : -1)
/* Be Posixly correct */
#undef bzero
#define bzero __ERROR_use_memset_not_bzero_in_xscreensaver__
#undef bcopy
#define bcopy __ERROR_use_memcpy_not_bcopy_in_xscreensaver__
#undef ftime
#define ftime __ERROR_use_gettimeofday_not_ftime_in_xscreensaver__
#undef sleep
#define sleep __ERROR_do_not_sleep_in_xscreensaver__
extern Bool mono_p;
struct xscreensaver_function_table {
const char *progclass;
const char * const *defaults;
const XrmOptionDescRec *options;
void (*setup_cb) (struct xscreensaver_function_table *, void *);
void * setup_arg;
void * (*init_cb) (Display *, Window);
unsigned long (*draw_cb) (Display *, Window, void *);
void (*reshape_cb) (Display *, Window, void *,
unsigned int w, unsigned int h);
Bool (*event_cb) (Display *, Window, void *, XEvent *);
void (*free_cb) (Display *, Window, void *);
void (*fps_cb) (Display *, Window, fps_state *, void *);
void (*fps_free) (fps_state *);
# ifndef HAVE_JWXYZ
Visual * (*pick_visual_hook) (Screen *);
Bool (*validate_visual_hook) (Screen *, const char *, Visual *);
# else
int visual;
# endif
};
extern const char *progname;
#endif /* __SCREENHACK_I_H__ */
