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1 | /* xscreensaver, Copyright (c) 1992-2018 Jamie Zawinski <jwz@jwz.org> |
2 | * | |
3 | * Permission to use, copy, modify, distribute, and sell this software and its | |
4 | * documentation for any purpose is hereby granted without fee, provided that | |
5 | * the above copyright notice appear in all copies and that both that | |
6 | * copyright notice and this permission notice appear in supporting | |
7 | * documentation. No representations are made about the suitability of this | |
8 | * software for any purpose. It is provided "as is" without express or | |
9 | * implied warranty. | |
10 | */ | |
11 | ||
12 | /* Found in Don Hopkins' .plan file: | |
13 | * | |
14 | * The color situation is a total flying circus. The X approach to | |
15 | * device independence is to treat everything like a MicroVax framebuffer | |
16 | * on acid. A truely portable X application is required to act like the | |
17 | * persistent customer in the Monty Python ``Cheese Shop'' sketch. Even | |
18 | * the simplest applications must answer many difficult questions, like: | |
19 | * | |
20 | * WHAT IS YOUR DISPLAY? | |
21 | * display = XOpenDisplay("unix:0"); | |
22 | * WHAT IS YOUR ROOT? | |
23 | * root = RootWindow(display, DefaultScreen(display)); | |
24 | * AND WHAT IS YOUR WINDOW? | |
25 | * win = XCreateSimpleWindow(display, root, 0, 0, 256, 256, 1, | |
26 | * BlackPixel(display, DefaultScreen(display)), | |
27 | * WhitePixel(display, DefaultScreen(display))) | |
28 | * OH ALL RIGHT, YOU CAN GO ON. | |
29 | * | |
30 | * WHAT IS YOUR DISPLAY? | |
31 | * display = XOpenDisplay("unix:0"); | |
32 | * WHAT IS YOUR COLORMAP? | |
33 | * cmap = DefaultColormap(display, DefaultScreen(display)); | |
34 | * AND WHAT IS YOUR FAVORITE COLOR? | |
35 | * favorite_color = 0; / * Black. * / | |
36 | * / * Whoops! No, I mean: * / | |
37 | * favorite_color = BlackPixel(display, DefaultScreen(display)); | |
38 | * / * AAAYYYYEEEEE!! (client dumps core & falls into the chasm) * / | |
39 | * | |
40 | * WHAT IS YOUR DISPLAY? | |
41 | * display = XOpenDisplay("unix:0"); | |
42 | * WHAT IS YOUR VISUAL? | |
43 | * struct XVisualInfo vinfo; | |
44 | * if (XMatchVisualInfo(display, DefaultScreen(display), | |
45 | * 8, PseudoColor, &vinfo) != 0) | |
46 | * visual = vinfo.visual; | |
47 | * AND WHAT IS THE NET SPEED VELOCITY OF AN XConfigureWindow REQUEST? | |
48 | * / * Is that a SubStructureRedirectMask or a ResizeRedirectMask? * / | |
49 | * WHAT?! HOW AM I SUPPOSED TO KNOW THAT? | |
50 | * AAAAUUUGGGHHH!!!! (server dumps core & falls into the chasm) | |
51 | */ | |
52 | ||
53 | #ifndef __SCREENHACK_I_H__ | |
54 | #define __SCREENHACK_I_H__ | |
55 | ||
56 | #ifdef HAVE_CONFIG_H | |
57 | # include "config.h" | |
58 | #endif /* HAVE_CONFIG_H */ | |
59 | ||
60 | #include <stdio.h> | |
61 | #include <stdlib.h> | |
62 | #include <math.h> | |
63 | #include <time.h> | |
64 | ||
65 | #ifdef __hpux | |
66 | /* Which of the ten billion standards does values.h belong to? | |
67 | What systems always have it? */ | |
68 | # include <values.h> | |
69 | #endif | |
70 | ||
71 | #ifdef HAVE_JWXYZ | |
72 | # include "jwxyz.h" | |
73 | # include <string.h> /* X11/Xos.h brings this in. */ | |
74 | /* From utils/visual.c. */ | |
75 | # define DEFAULT_VISUAL -1 | |
76 | # define GL_VISUAL -6 | |
77 | #else /* real X11 */ | |
78 | # include <X11/Xlib.h> | |
79 | # include <X11/Xutil.h> | |
80 | # include <X11/Xresource.h> | |
81 | # include <X11/Xos.h> | |
82 | #endif /* !HAVE_JWXYZ */ | |
83 | ||
84 | #if defined(HAVE_IPHONE) || defined(HAVE_ANDROID) | |
85 | # define HAVE_MOBILE | |
86 | #endif | |
87 | ||
88 | #ifdef HAVE_ANDROID | |
89 | /* So that hacks' debug output shows up in logcat... */ | |
90 | # undef fprintf | |
91 | # define fprintf(S, ...) Log(__VA_ARGS__) | |
92 | #endif | |
93 | ||
94 | /* M_PI ought to have been defined in math.h, but... */ | |
95 | #ifndef M_PI | |
96 | # define M_PI 3.1415926535 | |
97 | #endif | |
98 | ||
99 | #ifndef M_PI_2 | |
100 | # define M_PI_2 1.5707963267 | |
101 | #endif | |
102 | ||
103 | #ifndef Button6 | |
104 | # define Button6 6 | |
105 | # define Button7 7 | |
106 | #endif | |
107 | ||
108 | #include "yarandom.h" | |
109 | #include "usleep.h" | |
110 | #include "resources.h" | |
111 | #include "hsv.h" | |
112 | #include "colors.h" | |
113 | #include "grabscreen.h" | |
114 | #include "visual.h" | |
115 | #include "fps.h" | |
116 | #include "font-retry.h" | |
117 | ||
118 | #ifdef HAVE_RECORD_ANIM | |
119 | # include "recanim.h" | |
120 | #endif | |
121 | ||
122 | /* Be Posixly correct */ | |
123 | #undef bzero | |
124 | #define bzero __ERROR_use_memset_not_bzero_in_xscreensaver__ | |
125 | #undef bcopy | |
126 | #define bcopy __ERROR_use_memcpy_not_bcopy_in_xscreensaver__ | |
127 | #undef ftime | |
128 | #define ftime __ERROR_use_gettimeofday_not_ftime_in_xscreensaver__ | |
129 | #undef sleep | |
130 | #define sleep __ERROR_do_not_sleep_in_xscreensaver__ | |
131 | ||
132 | extern Bool mono_p; | |
133 | ||
134 | struct xscreensaver_function_table { | |
135 | ||
136 | const char *progclass; | |
137 | const char * const *defaults; | |
138 | const XrmOptionDescRec *options; | |
139 | ||
140 | void (*setup_cb) (struct xscreensaver_function_table *, void *); | |
141 | void * setup_arg; | |
142 | ||
143 | void * (*init_cb) (Display *, Window); | |
144 | unsigned long (*draw_cb) (Display *, Window, void *); | |
145 | void (*reshape_cb) (Display *, Window, void *, | |
146 | unsigned int w, unsigned int h); | |
147 | Bool (*event_cb) (Display *, Window, void *, XEvent *); | |
148 | void (*free_cb) (Display *, Window, void *); | |
149 | void (*fps_cb) (Display *, Window, fps_state *, void *); | |
150 | void (*fps_free) (fps_state *); | |
151 | ||
152 | # ifndef HAVE_JWXYZ | |
153 | Visual * (*pick_visual_hook) (Screen *); | |
154 | Bool (*validate_visual_hook) (Screen *, const char *, Visual *); | |
155 | # else | |
156 | int visual; | |
157 | # endif | |
158 | ||
159 | }; | |
160 | ||
161 | extern const char *progname; | |
162 | ||
163 | #endif /* __SCREENHACK_I_H__ */ |