1 // This file is part of BOINC.
2 // http://boinc.berkeley.edu
3 // Copyright (C) 2017 University of California
4 //
5 // BOINC is free software; you can redistribute it and/or modify it
6 // under the terms of the GNU Lesser General Public License
7 // as published by the Free Software Foundation,
8 // either version 3 of the License, or (at your option) any later version.
9 //
10 // BOINC is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
13 // See the GNU Lesser General Public License for more details.
14 //
15 // You should have received a copy of the GNU Lesser General Public License
16 // along with BOINC. If not, see <http://www.gnu.org/licenses/>.
17
18 // unix-specific graphics stuff
19 //
20 #include "config.h"
21 #include <cstdlib>
22 #include <cstdio>
23 #include <csetjmp>
24 #include <unistd.h>
25 #include <pthread.h>
26 #include <csignal>
27 #include <cstring>
28 #include "x_opengl.h"
29
30 #include "app_ipc.h"
31 #include "filesys.h"
32 #include "str_replace.h"
33 #include "util.h"
34
35 #include "boinc_gl.h"
36 #include "boinc_glut.h"
37 #include "boinc_api.h"
38 #include "graphics2.h"
39 #include "diagnostics.h"
40
41 #define TIMER_INTERVAL_MSEC 30
42
43 static int xpos = 100, ypos = 100, width = 600, height = 400;
44 static int clicked_button;
45 static int win=0;
46 static int checkparentcounter=0;
47
48 #ifdef __APPLE__
49
50 static bool need_show = false;
51 #endif
52
53 bool fullscreen;
54
boinc_close_window_and_quit(const char * p)55 void boinc_close_window_and_quit(const char* p) {
56 char buf[256];
57 fprintf(stderr, "%s Quitting: %s\n", boinc_msg_prefix(buf, sizeof(buf)), p);
58 exit(0);
59 }
60
boinc_close_window_and_quit_aux()61 void boinc_close_window_and_quit_aux() {
62 boinc_close_window_and_quit("GLUT close");
63 }
64
65 // This callback is invoked when a user presses a key.
66 //
keyboardD(unsigned char key,int,int)67 void keyboardD(unsigned char key, int /*x*/, int /*y*/) {
68 if (fullscreen) {
69 boinc_close_window_and_quit("key down");
70 } else {
71 boinc_app_key_press((int) key, 0);
72 }
73 }
74
keyboardU(unsigned char key,int,int)75 void keyboardU(unsigned char key, int /*x*/, int /*y*/) {
76 if (fullscreen) {
77 boinc_close_window_and_quit("key up");
78 } else {
79 boinc_app_key_release((int) key, 0);
80 }
81 }
82
mouse_click(int button,int state,int x,int y)83 void mouse_click(int button, int state, int x, int y){
84 clicked_button = button;
85 if (fullscreen) {
86 boinc_close_window_and_quit("mouse click");
87 } else {
88 if (state) {
89 boinc_app_mouse_button(x, y, button, false);
90 } else {
91 boinc_app_mouse_button(x, y, button, true);
92 }
93 }
94 }
95
mouse_click_move(int x,int y)96 void mouse_click_move(int x, int y){
97 if (fullscreen) {
98 boinc_close_window_and_quit("mouse move");
99 } else if (clicked_button == 2){
100 boinc_app_mouse_move(x, y, false, false, true);
101 } else if (clicked_button == 1){
102 boinc_app_mouse_move(x, y, false, true, false);
103 } else if (clicked_button == 0){
104 boinc_app_mouse_move(x, y, true, false, false);
105 } else{
106 boinc_app_mouse_move(x, y, false, false, false);
107 }
108 }
109
maybe_render()110 static void maybe_render() {
111 int new_xpos, new_ypos, new_width, new_height;
112 static int size_changed = 0;
113
114 new_xpos = glutGet(GLUT_WINDOW_X);
115 new_ypos = glutGet(GLUT_WINDOW_Y);
116 new_width = glutGet(GLUT_WINDOW_WIDTH);
117 new_height = glutGet(GLUT_WINDOW_HEIGHT);
118
119
120 if (throttled_app_render(new_width, new_height, dtime())) {
121 #ifdef __APPLE__
122 if (UseSharedOffscreenBuffer()) {
123 return; // Don't try to send garbage to screen
124 }
125 #endif
126 glutSwapBuffers();
127 if (! fullscreen) {
128 // If user has changed window size, wait until it stops
129 // changing and then write the new dimensions to file
130 if ((new_xpos != xpos) || (new_ypos != ypos) ||
131 (new_width != width) || (new_height != height)
132 ) {
133 size_changed = 1;
134 xpos = new_xpos;
135 ypos = new_ypos;
136 width = new_width;
137 height = new_height;
138 } else {
139 if (size_changed && (++size_changed > 10)) {
140 size_changed = 0;
141 FILE *f = boinc_fopen("gfx_info", "w");
142 if (f) {
143 // ToDo: change this to XML
144 fprintf(f, "%d %d %d %d\n", xpos, ypos, width, height);
145 fclose(f);
146 }
147 }
148 } // End if (new size != previous size) else
149 } // End if (! fullscreen)
150 #ifdef __APPLE__
151 MacGLUTFix(fullscreen);
152 if (need_show) {
153 glutShowWindow();
154 need_show = false;
155 }
156 #endif
157 }
158 }
159
make_window(const char * title)160 static void make_window(const char* title) {
161 char window_title[256];
162 if (title) {
163 strlcpy(window_title, title, sizeof(window_title));
164 } else {
165 get_window_title(window_title, 256);
166 }
167
168 win = glutCreateWindow(window_title);
169 glutReshapeFunc(app_graphics_resize);
170 glutKeyboardFunc(keyboardD);
171 glutKeyboardUpFunc(keyboardU);
172 glutMouseFunc(mouse_click);
173 glutMotionFunc(mouse_click_move);
174 glutDisplayFunc(maybe_render);
175 glEnable(GL_DEPTH_TEST);
176
177 app_graphics_init();
178
179 #ifdef __APPLE__
180 glutWMCloseFunc(boinc_close_window_and_quit_aux); // Enable the window's close box
181 BringAppToFront();
182 // Show window only after a successful call to throttled_app_render();
183 // this avoids momentary display of old image when screensaver restarts
184 // which made image appear to "jump."
185 need_show = true;
186 #endif
187
188 if (fullscreen) {
189 glutFullScreen();
190 }
191 }
192
boinc_glut_init(int * argc,char ** argv)193 static void boinc_glut_init(int *argc, char** argv) {
194 win = 0;
195
196 FILE *f = boinc_fopen("gfx_info", "r");
197 if (f) {
198 // ToDo: change this to XML parsing
199 int n = fscanf(f, "%d %d %d %d\n", &xpos, &ypos, &width, &height);
200 fclose(f);
201 if (n != 4) {
202 fprintf(stderr, "failed to parse gfx_info");
203 }
204 }
205
206 glutInit (argc, argv);
207 glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH | GLUT_ALPHA);
208 glutInitWindowPosition(xpos, ypos);
209 glutInitWindowSize(width, height);
210 }
211
timer_handler(int)212 static void timer_handler(int) {
213 maybe_render();
214 // When running under a V5 client, the worker app launches the graphics app
215 // so this code kills the graphics when the worker application exits.
216 // Under a V6 client, the Manager or Screensaver launched the graphics app
217 // so this code kills the graphics when the Manager or Screensaver exits.
218 if (--checkparentcounter < 0) {
219 // Check approximately twice per second if parent process still running
220 checkparentcounter = 500 / TIMER_INTERVAL_MSEC;
221 if (getppid() == 1) {
222 // Quit graphics application if parent process no longer running
223 boinc_close_window_and_quit("parent dead");
224 }
225 }
226 glutTimerFunc(TIMER_INTERVAL_MSEC, timer_handler, 0);
227 }
228
boinc_graphics_loop(int argc,char ** argv,const char * title)229 void boinc_graphics_loop(int argc, char** argv, const char* title) {
230 if (!diagnostics_is_initialized()) {
231 boinc_init_graphics_diagnostics(BOINC_DIAG_DEFAULTS);
232 }
233
234 #ifdef __APPLE__
235 char dir [MAXPATHLEN];
236 getcwd(dir, MAXPATHLEN);
237 #endif
238 for (int i=1; i<argc; i++) {
239 if (!strcmp(argv[i], "--fullscreen")) {
240 fullscreen = true;
241 }
242 }
243 boinc_glut_init(&argc, argv);
244 make_window(title);
245 glutTimerFunc(TIMER_INTERVAL_MSEC, timer_handler, 0);
246 #ifdef __APPLE__
247 // Apparently glut changed our working directory in OS 10.3.9
248 chdir(dir);
249 #endif
250 glutMainLoop();
251 }
252
253 #ifdef __APPLE__
254
UseSharedOffscreenBuffer()255 bool UseSharedOffscreenBuffer() {
256 static bool alreadyTested = false;
257 static bool needSharedGfxBuffer = false;
258
259 //return true; // FOR TESTING ONLY
260 if (alreadyTested) {
261 return needSharedGfxBuffer;
262 }
263 alreadyTested = true;
264 if (fullscreen) {
265 SInt32 major = -1;
266 SInt32 minor = -1;
267 char vers[100], *p1 = NULL;
268 FILE *f;
269 vers[0] = '\0';
270 f = popen("sw_vers -productVersion", "r");
271 if (f) {
272 fscanf(f, "%s", vers);
273 pclose(f);
274 }
275 if (vers[0] == '\0') {
276 fprintf(stderr, "popen(\"sw_vers -productVersion\" failed\n");
277 fflush(stderr);
278 return false;
279 }
280 // Extract the major system version number
281 major = atoi(vers);
282 if (major > 10) { // OS 11.0 or later
283 needSharedGfxBuffer = true;
284 return true;
285 }
286 // Extract the minor system version number
287 p1 = strchr(vers, '.');
288 minor = atoi(p1+1);
289 if (minor > 12) { // OS 10.13 or later
290 needSharedGfxBuffer = true;
291 return true;
292 }
293 }
294 return false;
295 }
296 #endif
297