source: trunk/source/visualization/OpenGL/src/G4OpenGLXViewer.cc@ 897

Last change on this file since 897 was 897, checked in by garnier, 17 years ago

suppres des debug et modif des WinSize
  • Property svn:mime-type set to text/cpp
File size: 17.5 KB
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1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
9// * include a list of copyright holders. *
10// * *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work make any representation or warranty, express or implied, *
14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
23// * acceptance of all terms of the Geant4 Software license. *
24// ********************************************************************
25//
26//
27// $Id: G4OpenGLXViewer.cc,v 1.42 2007/05/25 10:47:17 allison Exp $
28// GEANT4 tag $Name: HEAD $
29//
30//
31// Andrew Walkden 7th February 1997
32// G4OpenGLXViewer : Class to provide XWindows specific
33// functionality for OpenGL in GEANT4
34
35#ifdef G4VIS_BUILD_OPENGLX_DRIVER
36
37#include "G4OpenGLXViewer.hh"
38
39#include "G4OpenGLFontBaseStore.hh"
40
41#include <sstream>
42
43#include "G4VisExtent.hh"
44#include "G4LogicalVolume.hh"
45#include "G4VSolid.hh"
46#include "G4Point3D.hh"
47#include "G4Normal3D.hh"
48
49#include <X11/Xatom.h>
50#include <X11/Xutil.h>
51
52#include <assert.h>
53
54int G4OpenGLXViewer::snglBuf_RGBA[12] =
55{ GLX_RGBA,
56 GLX_RED_SIZE, 1,
57 GLX_GREEN_SIZE, 1,
58 GLX_BLUE_SIZE, 1,
59 GLX_DEPTH_SIZE, 1,
60 GLX_STENCIL_SIZE, 1,
61 None };
62
63int G4OpenGLXViewer::dblBuf_RGBA[13] =
64{ GLX_RGBA,
65 GLX_RED_SIZE, 1,
66 GLX_GREEN_SIZE, 1,
67 GLX_BLUE_SIZE, 1,
68 GLX_DOUBLEBUFFER,
69 GLX_DEPTH_SIZE, 1,
70 GLX_STENCIL_SIZE, 1,
71 None };
72
73#define NewString(str) \
74 ((str) != NULL ? (strcpy((char*)malloc((unsigned)strlen(str) + 1), str)) : (char*)NULL)
75
76#define USE_DEFAULT_COLORMAP 1
77#define USE_STANDARD_COLORMAP 0
78
79XVisualInfo* G4OpenGLXViewer::vi_single_buffer = 0;
80XVisualInfo* G4OpenGLXViewer::vi_double_buffer = 0;
81
82extern "C" {
83 static Bool G4OpenGLXViewerWaitForNotify (Display*, XEvent* e, char* arg) {
84 return (e->type == MapNotify) && (e->xmap.window == (Window) arg);
85 }
86}
87
88void G4OpenGLXViewer::SetView () {
89 glXMakeCurrent (dpy, win, cx);
90 G4OpenGLViewer::SetView ();
91}
92
93void G4OpenGLXViewer::ShowView () {
94 glXWaitGL (); //Wait for effects of all previous OpenGL commands to
95 //be propagated before progressing.
96 glFlush ();
97
98 if (fVP.IsPicking()) {
99 G4cout <<
100 "Window activated for picking (left-mouse), exit (middle-mouse)."
101 << G4endl;
102 while (true) {
103 if (XPending(dpy)) {
104 XNextEvent(dpy, &event);
105 if (event.type == ButtonPress && event.xbutton.button == 1) {
106 Pick(event.xbutton.x, event.xbutton.y);
107 }
108 else if (event.type == ButtonPress && event.xbutton.button == 2) break;
109 }
110 }
111 }
112}
113
114void G4OpenGLXViewer::GetXConnection () {
115// get a connection.
116 dpy = XOpenDisplay (0);
117 if (!dpy) {
118 fViewId = -1; // This flags an error.
119 G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't open display." << G4endl;
120 return;
121 }
122
123// make sure OpenGL is supported and installed properly.
124 if (!glXQueryExtension (dpy, &errorBase, &eventBase)) {
125 fViewId = -1; // This flags an error.
126 G4cerr << "G4OpenGLViewer::G4OpenGLViewer X Server has no GLX extension."
127 << G4endl;
128 return;
129 }
130
131}
132
133void G4OpenGLXViewer::CreateGLXContext (XVisualInfo* v) {
134
135 vi = v;
136// get window's attributes
137 if (!XGetWindowAttributes(dpy, XRootWindow (dpy, vi -> screen), &xwa)) {
138 fViewId = -1; // This flags an error.
139 G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't return window attributes"
140 << G4endl;
141 return;
142 }
143
144// create a GLX context
145 cx = glXCreateContext (dpy, vi, 0, true);
146 if (!cx) {
147 fViewId = -1; // This flags an error.
148 G4cerr << "G4OpenGLViewer::G4OpenGLViewer couldn't create context."
149 << G4endl;
150 return;
151 }
152
153// New stab at getting a colormap
154
155 Status status;
156 XStandardColormap *standardCmaps = XAllocStandardColormap ();
157 int i, numCmaps;
158
159 status = XmuLookupStandardColormap (dpy,
160 vi -> screen,
161 vi -> visualid,
162 vi -> depth,
163 XA_RGB_DEFAULT_MAP,
164 False,
165 True);
166
167 if (status == 1) {
168 cmap = 0;
169 status = XGetRGBColormaps (dpy,
170 XRootWindow (dpy, vi -> screen),
171 &standardCmaps,
172 &numCmaps,
173 XA_RGB_DEFAULT_MAP);
174 if (status == 1)
175 for (i = 0; i < numCmaps; i++) {
176 if (standardCmaps[i].visualid == vi -> visualid) {
177 cmap = standardCmaps[i].colormap;
178 XFree (standardCmaps);
179 break;
180 }
181 }
182 if (!cmap) {
183 fViewId = -1; // This flags an error.
184 G4cerr <<
185 "G4OpenGLViewer::G4OpenGLViewer failed to allocate a standard colormap."
186 << G4endl;
187 return;
188 }
189 G4cout << "Got standard cmap" << G4endl;
190 } else {
191 cmap = XCreateColormap (dpy,
192 XRootWindow(dpy, vi -> screen),
193 vi -> visual,
194 AllocNone);
195 G4cout << "Created own cmap" << G4endl;
196 }
197
198 if (!cmap) {
199 fViewId = -1; // This flags an error.
200 G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to allocate a Colormap."
201 << G4endl;
202 return;
203 }
204
205}
206
207void G4OpenGLXViewer::CreateMainWindow () {
208
209// create a window
210 swa.colormap = cmap;
211 swa.border_pixel = 0;
212 swa.event_mask = ExposureMask | ButtonPressMask | StructureNotifyMask;
213 swa.backing_store = WhenMapped;
214
215 // Window size and position...
216 G4int x_origin = 0;
217 G4int y_origin = 0;
218 size_hints = XAllocSizeHints();
219
220 Window root_return;
221 int x_return, y_return;
222 unsigned int width_return, height_return;
223 unsigned int border_width_return;
224 unsigned int depth_return;
225
226 // get the parent window's geometry
227 XGetGeometry(dpy, XRootWindow (dpy, vi -> screen), &root_return, &x_return, &y_return,
228 &width_return, &height_return, &border_width_return,
229 &depth_return);
230
231 fWinSize_x = fVP.GetWindowSizeHintX();
232 fWinSize_y = fVP.GetWindowSizeHintY();
233 x_origin = fVP.GetWindowAbsoluteLocationHintX(width_return);
234 y_origin = fVP.GetWindowAbsoluteLocationHintY(height_return);
235 size_hints->base_width = fWinSize_x;
236 size_hints->base_height = fWinSize_y;
237 size_hints->x = x_origin;
238 size_hints->y = y_origin;
239 size_hints->flags |= PSize | PPosition;
240#ifdef G4DEBUG
241 printf("G4OpenGLXViewer::CreateMainWindow CreateWindow Size:W:%d H:%d X:%d Y:%d \n",fWinSize_x,fWinSize_y,x_origin,y_origin);
242#endif
243
244 G4cout << "Window name: " << fName << G4endl;
245 strncpy (charViewName, fName, 100);
246 char *window_name = charViewName;
247 char *icon_name = charViewName;
248 //char tmpatom[] = "XA_WM_NORMAL_HINTS";
249 wm_hints = XAllocWMHints();
250 class_hints = XAllocClassHint();
251
252 XStringListToTextProperty (&window_name, 1, &windowName);
253 XStringListToTextProperty (&icon_name, 1, &iconName);
254
255 wm_hints -> initial_state = NormalState;
256 wm_hints -> input = True;
257 wm_hints -> icon_pixmap = icon_pixmap;
258 wm_hints -> flags = StateHint | IconPixmapHint | InputHint;
259
260 class_hints -> res_name = NewString("G4OpenGL");
261 class_hints -> res_class = NewString("G4OpenGL");
262
263 win = XCreateWindow (dpy, XRootWindow (dpy, vi -> screen), x_origin,
264 y_origin, fWinSize_x, fWinSize_y, 0, vi -> depth,
265 InputOutput, vi -> visual,
266 CWBorderPixel | CWColormap |
267 CWEventMask | CWBackingStore,
268 &swa);
269
270 XSetWMProperties (dpy, win, &windowName, &iconName, 0, 0,
271 size_hints, wm_hints, class_hints);
272
273// request X to Draw window on screen.
274 XMapWindow (dpy, win);
275
276// Wait for window to appear (wait for an "expose" event).
277 XIfEvent (dpy, &event, G4OpenGLXViewerWaitForNotify, (char*) win);
278
279// connect the context to a window
280 Bool success = glXMakeCurrent (dpy, win, cx);
281 if (!success) {
282 fViewId = -1; // This flags an error.
283 G4cerr << "G4OpenGLViewer::G4OpenGLViewer failed to attach a GLX context."
284 << G4endl;
285 GLint error = GL_NO_ERROR;
286 while ((error = glGetError()) != GL_NO_ERROR) {
287 G4cout << "GL Error: " << gluErrorString(error) << G4endl;
288 }
289 return;
290 }
291
292}
293
294void G4OpenGLXViewer::CreateFontLists () {
295
296 std::map<G4double,G4String> fonts; // G4VMarker screen size and font name.
297 fonts[10.] = "-adobe-courier-bold-r-normal--10-100-75-75-m-60-iso8859-1";
298 fonts[11.] = "-adobe-courier-bold-r-normal--11-80-100-100-m-60-iso8859-1";
299 fonts[12.] = "-adobe-courier-bold-r-normal--12-120-75-75-m-70-iso8859-1";
300 fonts[13.] = "fixed";
301 fonts[14.] = "-adobe-courier-bold-r-normal--14-100-100-100-m-90-iso8859-1";
302 fonts[17.] = "-adobe-courier-bold-r-normal--17-120-100-100-m-100-iso8859-1";
303 fonts[18.] = "-adobe-courier-bold-r-normal--18-180-75-75-m-110-iso8859-1";
304 fonts[20.] = "-adobe-courier-bold-r-normal--20-140-100-100-m-110-iso8859-1";
305 fonts[24.] = "-adobe-courier-bold-r-normal--24-240-75-75-m-150-iso8859-1";
306 fonts[25.] = "-adobe-courier-bold-r-normal--25-180-100-100-m-150-iso8859-1";
307 fonts[34.] = "-adobe-courier-bold-r-normal--34-240-100-100-m-200-iso8859-1";
308 std::map<G4double,G4String>::const_iterator i;
309 for (i = fonts.begin(); i != fonts.end(); ++i) {
310 XFontStruct* font_info = XLoadQueryFont(dpy, i->second);
311 if (!font_info) {
312 G4cerr <<
313 "G4OpenGLXViewer: XLoadQueryFont failed for font\n "
314 << i->second
315 << G4endl;
316 continue;
317 }
318 G4int font_base = glGenLists(256);
319 if (!font_base) {
320 G4cerr << "G4OpenGLXViewer: out of display lists for fonts."
321 << G4endl;
322 continue;
323 }
324 G4int first = font_info->min_char_or_byte2;
325 G4int last = font_info->max_char_or_byte2;
326 glXUseXFont(font_info->fid, first, last-first+1,font_base+first);
327 G4OpenGLFontBaseStore::AddFontBase(this,font_base,i->first,i->second);
328 }
329}
330
331G4OpenGLXViewer::G4OpenGLXViewer (G4OpenGLSceneHandler& scene):
332G4VViewer (scene, -1),
333G4OpenGLViewer (scene),
334vi_immediate (0),
335vi_stored (0),
336vi (0),
337cmap (0)
338{
339 GetXConnection ();
340 if (fViewId < 0) return;
341
342 // Try for a visual suitable for OpenGLImmediate..
343 // first try for a single buffered RGB window
344 if (!vi_single_buffer) {
345 vi_single_buffer =
346 glXChooseVisual (dpy, XDefaultScreen (dpy), snglBuf_RGBA);
347 }
348 if (!vi_double_buffer) {
349 vi_double_buffer =
350 glXChooseVisual (dpy, XDefaultScreen (dpy), dblBuf_RGBA);
351 }
352
353 if (vi_single_buffer || vi_double_buffer) {
354 if (!vi_double_buffer) {
355 G4cout <<
356 "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual."
357 "\n Working with a single buffer."
358 << G4endl;
359 }
360 } else {
361 if (!vi_single_buffer) {
362 G4cout <<
363 "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a single buffer visual."
364 << G4endl;
365 }
366 if (!vi_double_buffer) {
367 G4cout <<
368 "G4OpenGLXViewer::G4OpenGLXViewer: unable to get a double buffer visual."
369 << G4endl;
370 }
371 }
372
373 if (vi_single_buffer) {
374 vi_immediate = vi_single_buffer;
375 attributeList = snglBuf_RGBA;
376 }
377
378 if (!vi_immediate){
379 // next try for a double buffered RGB, but Draw to top buffer
380 if (vi_double_buffer) {
381 vi_immediate = vi_double_buffer;
382 attributeList = dblBuf_RGBA;
383 }
384 }
385
386 // Now try for a visual suitable for OpenGLStored...
387 // Try for a double buffered RGB window
388 if (vi_double_buffer) {
389 vi_stored = vi_double_buffer;
390 attributeList = dblBuf_RGBA;
391 }
392
393 if (!vi_immediate || !vi_stored) {
394 G4cout <<
395 "G4OpenGLXViewer::G4OpenGLXViewer: unable to get required visuals."
396 << G4endl;
397 fViewId = -1; // This flags an error.
398 }
399
400 // glClearColor (0., 0., 0., 0.);
401 // glClearDepth (1.);
402}
403
404G4OpenGLXViewer::~G4OpenGLXViewer () {
405 if (fViewId >= 0) {
406 //Close a window from here
407 glXMakeCurrent (dpy, None, NULL);
408 glXDestroyContext (dpy, cx);
409 if (win) XDestroyWindow (dpy, win); // ...if already deleted in
410 // sub-class G4OpenGLXmViewer.
411 XFlush (dpy);
412 }
413}
414
415void G4OpenGLXViewer::print() {
416
417 //using namespace std;
418 //cout << "print_col_callback requested with file name: " << print_string << G4endl;
419
420 if (vectored_ps) {
421
422 G4OpenGLViewer::print();
423
424 } else {
425
426 XVisualInfo* pvi;
427 GLXContext pcx = create_GL_print_context(pvi);
428
429 if (!pcx) {
430 G4cout << "Unable to create print context." << G4endl;
431 return;
432 }
433
434 GLXContext tmp_cx;
435 tmp_cx = cx;
436 cx=pcx;
437
438 Pixmap pmap = XCreatePixmap (dpy,
439 XRootWindow (dpy, pvi->screen),
440 fWinSize_x, fWinSize_y,
441 pvi->depth);
442
443 GLXPixmap glxpmap = glXCreateGLXPixmap (dpy,
444 pvi,
445 pmap);
446
447 GLXDrawable tmp_win;
448 tmp_win=win;
449 win=glxpmap;
450
451 glXMakeCurrent (dpy,
452 win,
453 cx);
454
455 glViewport (0, 0, fWinSize_x, fWinSize_y);
456
457 ClearView ();
458 SetView ();
459 DrawView ();
460
461 generateEPS (print_string,
462 print_colour,
463 fWinSize_x, fWinSize_y);
464
465 win=tmp_win;
466 cx=tmp_cx;
467
468 glXMakeCurrent (dpy,
469 win,
470 cx);
471
472 }
473
474}
475
476GLubyte* G4OpenGLXViewer::grabPixels (int inColor, unsigned int width, unsigned int height) {
477
478 GLubyte* buffer;
479 GLint swapbytes, lsbfirst, rowlength;
480 GLint skiprows, skippixels, alignment;
481 GLenum format;
482 int size;
483
484 if (inColor) {
485 format = GL_RGB;
486 size = width*height*3;
487 } else {
488 format = GL_LUMINANCE;
489 size = width*height*1;
490 }
491
492 buffer = new GLubyte[size];
493 if (buffer == NULL)
494 return NULL;
495
496 glGetIntegerv (GL_UNPACK_SWAP_BYTES, &swapbytes);
497 glGetIntegerv (GL_UNPACK_LSB_FIRST, &lsbfirst);
498 glGetIntegerv (GL_UNPACK_ROW_LENGTH, &rowlength);
499
500 glGetIntegerv (GL_UNPACK_SKIP_ROWS, &skiprows);
501 glGetIntegerv (GL_UNPACK_SKIP_PIXELS, &skippixels);
502 glGetIntegerv (GL_UNPACK_ALIGNMENT, &alignment);
503
504 glPixelStorei (GL_UNPACK_SWAP_BYTES, GL_FALSE);
505 glPixelStorei (GL_UNPACK_LSB_FIRST, GL_FALSE);
506 glPixelStorei (GL_UNPACK_ROW_LENGTH, 0);
507
508 glPixelStorei (GL_UNPACK_SKIP_ROWS, 0);
509 glPixelStorei (GL_UNPACK_SKIP_PIXELS, 0);
510 glPixelStorei (GL_UNPACK_ALIGNMENT, 1);
511
512 glReadPixels (0, 0, (GLsizei)width, (GLsizei)height, format, GL_UNSIGNED_BYTE, (GLvoid*) buffer);
513
514 glPixelStorei (GL_UNPACK_SWAP_BYTES, swapbytes);
515 glPixelStorei (GL_UNPACK_LSB_FIRST, lsbfirst);
516 glPixelStorei (GL_UNPACK_ROW_LENGTH, rowlength);
517
518 glPixelStorei (GL_UNPACK_SKIP_ROWS, skiprows);
519 glPixelStorei (GL_UNPACK_SKIP_PIXELS, skippixels);
520 glPixelStorei (GL_UNPACK_ALIGNMENT, alignment);
521
522 return buffer;
523}
524
525int G4OpenGLXViewer::generateEPS (char* filnam,
526 int inColour,
527 unsigned int width,
528 unsigned int height) {
529
530 FILE* fp;
531 GLubyte* pixels;
532 GLubyte* curpix;
533 int components, pos, i;
534
535 pixels = grabPixels (inColour, width, height);
536
537 if (pixels == NULL)
538 return 1;
539 if (inColour) {
540 components = 3;
541 } else {
542 components = 1;
543 }
544
545 fp = fopen (filnam, "w");
546 if (fp == NULL) {
547 return 2;
548 }
549
550 fprintf (fp, "%%!PS-Adobe-2.0 EPSF-1.2\n");
551 fprintf (fp, "%%%%Title: %s\n", filnam);
552 fprintf (fp, "%%%%Creator: OpenGL pixmap render output\n");
553 fprintf (fp, "%%%%BoundingBox: 0 0 %d %d\n", width, height);
554 fprintf (fp, "%%%%EndComments\n");
555 fprintf (fp, "gsave\n");
556 fprintf (fp, "/bwproc {\n");
557 fprintf (fp, " rgbproc\n");
558 fprintf (fp, " dup length 3 idiv string 0 3 0 \n");
559 fprintf (fp, " 5 -1 roll {\n");
560 fprintf (fp, " add 2 1 roll 1 sub dup 0 eq\n");
561 fprintf (fp, " { pop 3 idiv 3 -1 roll dup 4 -1 roll dup\n");
562 fprintf (fp, " 3 1 roll 5 -1 roll } put 1 add 3 0 \n");
563 fprintf (fp, " { 2 1 roll } ifelse\n");
564 fprintf (fp, " }forall\n");
565 fprintf (fp, " pop pop pop\n");
566 fprintf (fp, "} def\n");
567 fprintf (fp, "systemdict /colorimage known not {\n");
568 fprintf (fp, " /colorimage {\n");
569 fprintf (fp, " pop\n");
570 fprintf (fp, " pop\n");
571 fprintf (fp, " /rgbproc exch def\n");
572 fprintf (fp, " { bwproc } image\n");
573 fprintf (fp, " } def\n");
574 fprintf (fp, "} if\n");
575 fprintf (fp, "/picstr %d string def\n", width * components);
576 fprintf (fp, "%d %d scale\n", width, height);
577 fprintf (fp, "%d %d %d\n", width, height, 8);
578 fprintf (fp, "[%d 0 0 %d 0 0]\n", width, height);
579 fprintf (fp, "{currentfile picstr readhexstring pop}\n");
580 fprintf (fp, "false %d\n", components);
581 fprintf (fp, "colorimage\n");
582
583 curpix = (GLubyte*) pixels;
584 pos = 0;
585 for (i = width*height*components; i>0; i--) {
586 fprintf (fp, "%02hx ", *(curpix++));
587 if (++pos >= 32) {
588 fprintf (fp, "\n");
589 pos = 0;
590 }
591 }
592 if (pos)
593 fprintf (fp, "\n");
594
595 fprintf (fp, "grestore\n");
596 fprintf (fp, "showpage\n");
597 delete pixels;
598 fclose (fp);
599 return 0;
600}
601
602GLXContext G4OpenGLXViewer::create_GL_print_context(XVisualInfo*& pvi) {
603
604 pvi = glXChooseVisual (dpy,
605 XDefaultScreen (dpy),
606 snglBuf_RGBA);
607
608 if (!pvi) {
609 pvi = glXChooseVisual (dpy,
610 XDefaultScreen (dpy),
611 dblBuf_RGBA);
612 }
613
614 return glXCreateContext (dpy,
615 pvi,
616 NULL,
617 False);
618}
619
620#endif
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