1 | /****************************************************************************
|
---|
2 | **
|
---|
3 | ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
|
---|
4 | ** All rights reserved.
|
---|
5 | ** Contact: Nokia Corporation ([email protected])
|
---|
6 | **
|
---|
7 | ** This file is part of the QtOpenGL module of the Qt Toolkit.
|
---|
8 | **
|
---|
9 | ** $QT_BEGIN_LICENSE:LGPL$
|
---|
10 | ** Commercial Usage
|
---|
11 | ** Licensees holding valid Qt Commercial licenses may use this file in
|
---|
12 | ** accordance with the Qt Commercial License Agreement provided with the
|
---|
13 | ** Software or, alternatively, in accordance with the terms contained in
|
---|
14 | ** a written agreement between you and Nokia.
|
---|
15 | **
|
---|
16 | ** GNU Lesser General Public License Usage
|
---|
17 | ** Alternatively, this file may be used under the terms of the GNU Lesser
|
---|
18 | ** General Public License version 2.1 as published by the Free Software
|
---|
19 | ** Foundation and appearing in the file LICENSE.LGPL included in the
|
---|
20 | ** packaging of this file. Please review the following information to
|
---|
21 | ** ensure the GNU Lesser General Public License version 2.1 requirements
|
---|
22 | ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
|
---|
23 | **
|
---|
24 | ** In addition, as a special exception, Nokia gives you certain additional
|
---|
25 | ** rights. These rights are described in the Nokia Qt LGPL Exception
|
---|
26 | ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
---|
27 | **
|
---|
28 | ** GNU General Public License Usage
|
---|
29 | ** Alternatively, this file may be used under the terms of the GNU
|
---|
30 | ** General Public License version 3.0 as published by the Free Software
|
---|
31 | ** Foundation and appearing in the file LICENSE.GPL included in the
|
---|
32 | ** packaging of this file. Please review the following information to
|
---|
33 | ** ensure the GNU General Public License version 3.0 requirements will be
|
---|
34 | ** met: http://www.gnu.org/copyleft/gpl.html.
|
---|
35 | **
|
---|
36 | ** If you have questions regarding the use of this file, please contact
|
---|
37 | ** Nokia at [email protected].
|
---|
38 | ** $QT_END_LICENSE$
|
---|
39 | **
|
---|
40 | ****************************************************************************/
|
---|
41 |
|
---|
42 | #include "qgl.h"
|
---|
43 | #include "qgl_p.h"
|
---|
44 |
|
---|
45 | #include "qmap.h"
|
---|
46 | #include "qapplication.h"
|
---|
47 | #include "qcolormap.h"
|
---|
48 | #include "qdesktopwidget.h"
|
---|
49 | #include "qpixmap.h"
|
---|
50 | #include "qhash.h"
|
---|
51 | #include "qlibrary.h"
|
---|
52 | #include "qdebug.h"
|
---|
53 | #include <private/qfontengine_ft_p.h>
|
---|
54 | #include <private/qt_x11_p.h>
|
---|
55 | #include <private/qpixmap_x11_p.h>
|
---|
56 | #include <private/qimagepixmapcleanuphooks_p.h>
|
---|
57 | #ifdef Q_OS_HPUX
|
---|
58 | // for GLXPBuffer
|
---|
59 | #include <private/qglpixelbuffer_p.h>
|
---|
60 | #endif
|
---|
61 |
|
---|
62 | // We always define GLX_EXT_texture_from_pixmap ourselves because
|
---|
63 | // we can't trust system headers to do it properly
|
---|
64 | #define GLX_EXT_texture_from_pixmap 1
|
---|
65 |
|
---|
66 | #define INT8 dummy_INT8
|
---|
67 | #define INT32 dummy_INT32
|
---|
68 | #include <GL/glx.h>
|
---|
69 | #undef INT8
|
---|
70 | #undef INT32
|
---|
71 |
|
---|
72 | #include <X11/Xlib.h>
|
---|
73 | #include <X11/Xutil.h>
|
---|
74 | #include <X11/Xos.h>
|
---|
75 | #ifdef Q_OS_VXWORS
|
---|
76 | # ifdef open
|
---|
77 | # undef open
|
---|
78 | # endif
|
---|
79 | # ifdef getpid
|
---|
80 | # undef getpid
|
---|
81 | # endif
|
---|
82 | #endif // Q_OS_VXWORKS
|
---|
83 | #include <X11/Xatom.h>
|
---|
84 |
|
---|
85 | #if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
|
---|
86 | #include <dlfcn.h>
|
---|
87 | #endif
|
---|
88 |
|
---|
89 | QT_BEGIN_NAMESPACE
|
---|
90 |
|
---|
91 | extern Drawable qt_x11Handle(const QPaintDevice *pd);
|
---|
92 | extern const QX11Info *qt_x11Info(const QPaintDevice *pd);
|
---|
93 |
|
---|
94 | #ifndef GLX_ARB_multisample
|
---|
95 | #define GLX_SAMPLE_BUFFERS_ARB 100000
|
---|
96 | #define GLX_SAMPLES_ARB 100001
|
---|
97 | #endif
|
---|
98 |
|
---|
99 | #ifndef GLX_TEXTURE_2D_BIT_EXT
|
---|
100 | #define GLX_TEXTURE_2D_BIT_EXT 0x00000002
|
---|
101 | #define GLX_TEXTURE_RECTANGLE_BIT_EXT 0x00000004
|
---|
102 | #define GLX_BIND_TO_TEXTURE_RGB_EXT 0x20D0
|
---|
103 | #define GLX_BIND_TO_TEXTURE_RGBA_EXT 0x20D1
|
---|
104 | #define GLX_BIND_TO_MIPMAP_TEXTURE_EXT 0x20D2
|
---|
105 | #define GLX_BIND_TO_TEXTURE_TARGETS_EXT 0x20D3
|
---|
106 | #define GLX_Y_INVERTED_EXT 0x20D4
|
---|
107 | #define GLX_TEXTURE_FORMAT_EXT 0x20D5
|
---|
108 | #define GLX_TEXTURE_TARGET_EXT 0x20D6
|
---|
109 | #define GLX_MIPMAP_TEXTURE_EXT 0x20D7
|
---|
110 | #define GLX_TEXTURE_FORMAT_NONE_EXT 0x20D8
|
---|
111 | #define GLX_TEXTURE_FORMAT_RGB_EXT 0x20D9
|
---|
112 | #define GLX_TEXTURE_FORMAT_RGBA_EXT 0x20DA
|
---|
113 | #define GLX_TEXTURE_2D_EXT 0x20DC
|
---|
114 | #define GLX_TEXTURE_RECTANGLE_EXT 0x20DD
|
---|
115 | #define GLX_FRONT_LEFT_EXT 0x20DE
|
---|
116 | #endif
|
---|
117 |
|
---|
118 | /*
|
---|
119 | The qt_gl_choose_cmap function is internal and used by QGLWidget::setContext()
|
---|
120 | and GLX (not Windows). If the application can't find any sharable
|
---|
121 | colormaps, it must at least create as few colormaps as possible. The
|
---|
122 | dictionary solution below ensures only one colormap is created per visual.
|
---|
123 | Colormaps are also deleted when the application terminates.
|
---|
124 | */
|
---|
125 |
|
---|
126 | struct QCMapEntry {
|
---|
127 | QCMapEntry();
|
---|
128 | ~QCMapEntry();
|
---|
129 |
|
---|
130 | Colormap cmap;
|
---|
131 | bool alloc;
|
---|
132 | XStandardColormap scmap;
|
---|
133 | };
|
---|
134 |
|
---|
135 | QCMapEntry::QCMapEntry()
|
---|
136 | {
|
---|
137 | cmap = 0;
|
---|
138 | alloc = false;
|
---|
139 | scmap.colormap = 0;
|
---|
140 | }
|
---|
141 |
|
---|
142 | QCMapEntry::~QCMapEntry()
|
---|
143 | {
|
---|
144 | if (alloc)
|
---|
145 | XFreeColormap(X11->display, cmap);
|
---|
146 | }
|
---|
147 | typedef QHash<int, QCMapEntry *> CMapEntryHash;
|
---|
148 | typedef QHash<int, QMap<int, QRgb> > GLCMapHash;
|
---|
149 | static bool mesa_gl = false;
|
---|
150 | static bool first_time = true;
|
---|
151 |
|
---|
152 | static void cleanup_cmaps();
|
---|
153 |
|
---|
154 | struct QGLCMapCleanupHandler {
|
---|
155 | QGLCMapCleanupHandler() {
|
---|
156 | cmap_hash = new CMapEntryHash;
|
---|
157 | qglcmap_hash = new GLCMapHash;
|
---|
158 | }
|
---|
159 | ~QGLCMapCleanupHandler() {
|
---|
160 | delete cmap_hash;
|
---|
161 | delete qglcmap_hash;
|
---|
162 | }
|
---|
163 | CMapEntryHash *cmap_hash;
|
---|
164 | GLCMapHash *qglcmap_hash;
|
---|
165 | };
|
---|
166 | Q_GLOBAL_STATIC(QGLCMapCleanupHandler, cmap_handler)
|
---|
167 |
|
---|
168 | static void cleanup_cmaps()
|
---|
169 | {
|
---|
170 | CMapEntryHash *hash = cmap_handler()->cmap_hash;
|
---|
171 | QHash<int, QCMapEntry *>::ConstIterator it = hash->constBegin();
|
---|
172 | while (it != hash->constEnd()) {
|
---|
173 | delete it.value();
|
---|
174 | ++it;
|
---|
175 | }
|
---|
176 |
|
---|
177 | hash->clear();
|
---|
178 | cmap_handler()->qglcmap_hash->clear();
|
---|
179 | }
|
---|
180 |
|
---|
181 | Colormap qt_gl_choose_cmap(Display *dpy, XVisualInfo *vi)
|
---|
182 | {
|
---|
183 | if (first_time) {
|
---|
184 | const char *v = glXQueryServerString(dpy, vi->screen, GLX_VERSION);
|
---|
185 | if (v)
|
---|
186 | mesa_gl = (strstr(v, "Mesa") != 0);
|
---|
187 | first_time = false;
|
---|
188 | }
|
---|
189 |
|
---|
190 | CMapEntryHash *hash = cmap_handler()->cmap_hash;
|
---|
191 | CMapEntryHash::ConstIterator it = hash->constFind((long) vi->visualid + (vi->screen * 256));
|
---|
192 | if (it != hash->constEnd())
|
---|
193 | return it.value()->cmap; // found colormap for visual
|
---|
194 |
|
---|
195 | if (vi->visualid ==
|
---|
196 | XVisualIDFromVisual((Visual *) QX11Info::appVisual(vi->screen))) {
|
---|
197 | // qDebug("Using x11AppColormap");
|
---|
198 | return QX11Info::appColormap(vi->screen);
|
---|
199 | }
|
---|
200 |
|
---|
201 | QCMapEntry *x = new QCMapEntry();
|
---|
202 |
|
---|
203 | XStandardColormap *c;
|
---|
204 | int n, i;
|
---|
205 |
|
---|
206 | // qDebug("Choosing cmap for vID %0x", vi->visualid);
|
---|
207 |
|
---|
208 | if (mesa_gl) { // we're using MesaGL
|
---|
209 | Atom hp_cmaps = XInternAtom(dpy, "_HP_RGB_SMOOTH_MAP_LIST", true);
|
---|
210 | if (hp_cmaps && vi->visual->c_class == TrueColor && vi->depth == 8) {
|
---|
211 | if (XGetRGBColormaps(dpy,RootWindow(dpy,vi->screen),&c,&n,
|
---|
212 | hp_cmaps)) {
|
---|
213 | i = 0;
|
---|
214 | while (i < n && x->cmap == 0) {
|
---|
215 | if (c[i].visualid == vi->visual->visualid) {
|
---|
216 | x->cmap = c[i].colormap;
|
---|
217 | x->scmap = c[i];
|
---|
218 | //qDebug("Using HP_RGB scmap");
|
---|
219 |
|
---|
220 | }
|
---|
221 | i++;
|
---|
222 | }
|
---|
223 | XFree((char *)c);
|
---|
224 | }
|
---|
225 | }
|
---|
226 | }
|
---|
227 | if (!x->cmap) {
|
---|
228 | if (XGetRGBColormaps(dpy,RootWindow(dpy,vi->screen),&c,&n,
|
---|
229 | XA_RGB_DEFAULT_MAP)) {
|
---|
230 | for (int i = 0; i < n && x->cmap == 0; ++i) {
|
---|
231 | if (!c[i].red_max ||
|
---|
232 | !c[i].green_max ||
|
---|
233 | !c[i].blue_max ||
|
---|
234 | !c[i].red_mult ||
|
---|
235 | !c[i].green_mult ||
|
---|
236 | !c[i].blue_mult)
|
---|
237 | continue; // invalid stdcmap
|
---|
238 | if (c[i].visualid == vi->visualid) {
|
---|
239 | x->cmap = c[i].colormap;
|
---|
240 | x->scmap = c[i];
|
---|
241 | //qDebug("Using RGB_DEFAULT scmap");
|
---|
242 | }
|
---|
243 | }
|
---|
244 | XFree((char *)c);
|
---|
245 | }
|
---|
246 | }
|
---|
247 | if (!x->cmap) { // no shared cmap found
|
---|
248 | x->cmap = XCreateColormap(dpy, RootWindow(dpy,vi->screen), vi->visual,
|
---|
249 | AllocNone);
|
---|
250 | x->alloc = true;
|
---|
251 | // qDebug("Allocating cmap");
|
---|
252 | }
|
---|
253 |
|
---|
254 | // colormap hash should be cleanup only when the QApplication dtor is called
|
---|
255 | if (hash->isEmpty())
|
---|
256 | qAddPostRoutine(cleanup_cmaps);
|
---|
257 |
|
---|
258 | // associate cmap with visualid
|
---|
259 | hash->insert((long) vi->visualid + (vi->screen * 256), x);
|
---|
260 | return x->cmap;
|
---|
261 | }
|
---|
262 |
|
---|
263 | struct QTransColor
|
---|
264 | {
|
---|
265 | VisualID vis;
|
---|
266 | int screen;
|
---|
267 | long color;
|
---|
268 | };
|
---|
269 |
|
---|
270 | static QVector<QTransColor> trans_colors;
|
---|
271 | static int trans_colors_init = false;
|
---|
272 |
|
---|
273 | static void find_trans_colors()
|
---|
274 | {
|
---|
275 | struct OverlayProp {
|
---|
276 | long visual;
|
---|
277 | long type;
|
---|
278 | long value;
|
---|
279 | long layer;
|
---|
280 | };
|
---|
281 |
|
---|
282 | trans_colors_init = true;
|
---|
283 |
|
---|
284 | Display* appDisplay = X11->display;
|
---|
285 |
|
---|
286 | int scr;
|
---|
287 | int lastsize = 0;
|
---|
288 | for (scr = 0; scr < ScreenCount(appDisplay); scr++) {
|
---|
289 | QWidget* rootWin = QApplication::desktop()->screen(scr);
|
---|
290 | if (!rootWin)
|
---|
291 | return; // Should not happen
|
---|
292 | Atom overlayVisualsAtom = XInternAtom(appDisplay,
|
---|
293 | "SERVER_OVERLAY_VISUALS", True);
|
---|
294 | if (overlayVisualsAtom == XNone)
|
---|
295 | return; // Server has no overlays
|
---|
296 |
|
---|
297 | Atom actualType;
|
---|
298 | int actualFormat;
|
---|
299 | ulong nItems;
|
---|
300 | ulong bytesAfter;
|
---|
301 | unsigned char *retval = 0;
|
---|
302 | int res = XGetWindowProperty(appDisplay, rootWin->winId(),
|
---|
303 | overlayVisualsAtom, 0, 10000, False,
|
---|
304 | overlayVisualsAtom, &actualType,
|
---|
305 | &actualFormat, &nItems, &bytesAfter,
|
---|
306 | &retval);
|
---|
307 |
|
---|
308 | if (res != Success || actualType != overlayVisualsAtom
|
---|
309 | || actualFormat != 32 || nItems < 4 || !retval)
|
---|
310 | return; // Error reading property
|
---|
311 |
|
---|
312 | OverlayProp *overlayProps = (OverlayProp *)retval;
|
---|
313 |
|
---|
314 | int numProps = nItems / 4;
|
---|
315 | trans_colors.resize(lastsize + numProps);
|
---|
316 | int j = lastsize;
|
---|
317 | for (int i = 0; i < numProps; i++) {
|
---|
318 | if (overlayProps[i].type == 1) {
|
---|
319 | trans_colors[j].vis = (VisualID)overlayProps[i].visual;
|
---|
320 | trans_colors[j].screen = scr;
|
---|
321 | trans_colors[j].color = (int)overlayProps[i].value;
|
---|
322 | j++;
|
---|
323 | }
|
---|
324 | }
|
---|
325 | XFree(overlayProps);
|
---|
326 | lastsize = j;
|
---|
327 | trans_colors.resize(lastsize);
|
---|
328 | }
|
---|
329 | }
|
---|
330 |
|
---|
331 | /*****************************************************************************
|
---|
332 | QGLFormat UNIX/GLX-specific code
|
---|
333 | *****************************************************************************/
|
---|
334 |
|
---|
335 | void* qglx_getProcAddress(const char* procName)
|
---|
336 | {
|
---|
337 | // On systems where the GL driver is pluggable (like Mesa), we have to use
|
---|
338 | // the glXGetProcAddressARB extension to resolve other function pointers as
|
---|
339 | // the symbols wont be in the GL library, but rather in a plugin loaded by
|
---|
340 | // the GL library.
|
---|
341 | typedef void* (*qt_glXGetProcAddressARB)(const char *);
|
---|
342 | static qt_glXGetProcAddressARB glXGetProcAddressARB = 0;
|
---|
343 | static bool triedResolvingGlxGetProcAddress = false;
|
---|
344 | if (!triedResolvingGlxGetProcAddress) {
|
---|
345 | triedResolvingGlxGetProcAddress = true;
|
---|
346 | QGLExtensionMatcher extensions(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS));
|
---|
347 | if (extensions.match("GLX_ARB_get_proc_address")) {
|
---|
348 | #if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
|
---|
349 | void *handle = dlopen(NULL, RTLD_LAZY);
|
---|
350 | if (handle) {
|
---|
351 | glXGetProcAddressARB = (qt_glXGetProcAddressARB) dlsym(handle, "glXGetProcAddressARB");
|
---|
352 | dlclose(handle);
|
---|
353 | }
|
---|
354 | if (!glXGetProcAddressARB)
|
---|
355 | #endif
|
---|
356 | {
|
---|
357 | #if !defined(QT_NO_LIBRARY)
|
---|
358 | extern const QString qt_gl_library_name();
|
---|
359 | QLibrary lib(qt_gl_library_name());
|
---|
360 | glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB");
|
---|
361 | #endif
|
---|
362 | }
|
---|
363 | }
|
---|
364 | }
|
---|
365 |
|
---|
366 | void *procAddress = 0;
|
---|
367 | if (glXGetProcAddressARB)
|
---|
368 | procAddress = glXGetProcAddressARB(procName);
|
---|
369 |
|
---|
370 | // If glXGetProcAddress didn't work, try looking the symbol up in the GL library
|
---|
371 | #if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
|
---|
372 | if (!procAddress) {
|
---|
373 | void *handle = dlopen(NULL, RTLD_LAZY);
|
---|
374 | if (handle) {
|
---|
375 | procAddress = dlsym(handle, procName);
|
---|
376 | dlclose(handle);
|
---|
377 | }
|
---|
378 | }
|
---|
379 | #endif
|
---|
380 | #if !defined(QT_NO_LIBRARY)
|
---|
381 | if (!procAddress) {
|
---|
382 | extern const QString qt_gl_library_name();
|
---|
383 | QLibrary lib(qt_gl_library_name());
|
---|
384 | procAddress = lib.resolve(procName);
|
---|
385 | }
|
---|
386 | #endif
|
---|
387 |
|
---|
388 | return procAddress;
|
---|
389 | }
|
---|
390 |
|
---|
391 | bool QGLFormat::hasOpenGL()
|
---|
392 | {
|
---|
393 | return glXQueryExtension(X11->display, 0, 0) != 0;
|
---|
394 | }
|
---|
395 |
|
---|
396 |
|
---|
397 | bool QGLFormat::hasOpenGLOverlays()
|
---|
398 | {
|
---|
399 | if (!trans_colors_init)
|
---|
400 | find_trans_colors();
|
---|
401 | return trans_colors.size() > 0;
|
---|
402 | }
|
---|
403 |
|
---|
404 | /*****************************************************************************
|
---|
405 | QGLContext UNIX/GLX-specific code
|
---|
406 | *****************************************************************************/
|
---|
407 |
|
---|
408 | bool QGLContext::chooseContext(const QGLContext* shareContext)
|
---|
409 | {
|
---|
410 | Q_D(QGLContext);
|
---|
411 | const QX11Info *xinfo = qt_x11Info(d->paintDevice);
|
---|
412 |
|
---|
413 | Display* disp = xinfo->display();
|
---|
414 | d->vi = chooseVisual();
|
---|
415 | if (!d->vi)
|
---|
416 | return false;
|
---|
417 |
|
---|
418 | if (deviceIsPixmap() &&
|
---|
419 | (((XVisualInfo*)d->vi)->depth != xinfo->depth() ||
|
---|
420 | ((XVisualInfo*)d->vi)->screen != xinfo->screen()))
|
---|
421 | {
|
---|
422 | XFree(d->vi);
|
---|
423 | XVisualInfo appVisInfo;
|
---|
424 | memset(&appVisInfo, 0, sizeof(XVisualInfo));
|
---|
425 | appVisInfo.visualid = XVisualIDFromVisual((Visual *) xinfo->visual());
|
---|
426 | appVisInfo.screen = xinfo->screen();
|
---|
427 | int nvis;
|
---|
428 | d->vi = XGetVisualInfo(disp, VisualIDMask | VisualScreenMask, &appVisInfo, &nvis);
|
---|
429 | if (!d->vi)
|
---|
430 | return false;
|
---|
431 |
|
---|
432 | int useGL;
|
---|
433 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_USE_GL, &useGL);
|
---|
434 | if (!useGL)
|
---|
435 | return false; //# Chickening out already...
|
---|
436 | }
|
---|
437 | int res;
|
---|
438 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_LEVEL, &res);
|
---|
439 | d->glFormat.setPlane(res);
|
---|
440 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_DOUBLEBUFFER, &res);
|
---|
441 | d->glFormat.setDoubleBuffer(res);
|
---|
442 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_DEPTH_SIZE, &res);
|
---|
443 | d->glFormat.setDepth(res);
|
---|
444 | if (d->glFormat.depth())
|
---|
445 | d->glFormat.setDepthBufferSize(res);
|
---|
446 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_RGBA, &res);
|
---|
447 | d->glFormat.setRgba(res);
|
---|
448 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_RED_SIZE, &res);
|
---|
449 | d->glFormat.setRedBufferSize(res);
|
---|
450 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_GREEN_SIZE, &res);
|
---|
451 | d->glFormat.setGreenBufferSize(res);
|
---|
452 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_BLUE_SIZE, &res);
|
---|
453 | d->glFormat.setBlueBufferSize(res);
|
---|
454 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_ALPHA_SIZE, &res);
|
---|
455 | d->glFormat.setAlpha(res);
|
---|
456 | if (d->glFormat.alpha())
|
---|
457 | d->glFormat.setAlphaBufferSize(res);
|
---|
458 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_ACCUM_RED_SIZE, &res);
|
---|
459 | d->glFormat.setAccum(res);
|
---|
460 | if (d->glFormat.accum())
|
---|
461 | d->glFormat.setAccumBufferSize(res);
|
---|
462 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_STENCIL_SIZE, &res);
|
---|
463 | d->glFormat.setStencil(res);
|
---|
464 | if (d->glFormat.stencil())
|
---|
465 | d->glFormat.setStencilBufferSize(res);
|
---|
466 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_STEREO, &res);
|
---|
467 | d->glFormat.setStereo(res);
|
---|
468 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_SAMPLE_BUFFERS_ARB, &res);
|
---|
469 | d->glFormat.setSampleBuffers(res);
|
---|
470 | if (d->glFormat.sampleBuffers()) {
|
---|
471 | glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_SAMPLES_ARB, &res);
|
---|
472 | d->glFormat.setSamples(res);
|
---|
473 | }
|
---|
474 |
|
---|
475 | Bool direct = format().directRendering() ? True : False;
|
---|
476 |
|
---|
477 | if (shareContext &&
|
---|
478 | (!shareContext->isValid() || !shareContext->d_func()->cx)) {
|
---|
479 | qWarning("QGLContext::chooseContext(): Cannot share with invalid context");
|
---|
480 | shareContext = 0;
|
---|
481 | }
|
---|
482 |
|
---|
483 | // 1. Sharing between rgba and color-index will give wrong colors.
|
---|
484 | // 2. Contexts cannot be shared btw. direct/non-direct renderers.
|
---|
485 | // 3. Pixmaps cannot share contexts that are set up for direct rendering.
|
---|
486 | // 4. If the contexts are not created on the same screen, they can't be shared
|
---|
487 |
|
---|
488 | if (shareContext
|
---|
489 | && (format().rgba() != shareContext->format().rgba()
|
---|
490 | || (deviceIsPixmap() && glXIsDirect(disp, (GLXContext)shareContext->d_func()->cx))
|
---|
491 | || (shareContext->d_func()->screen != xinfo->screen())))
|
---|
492 | {
|
---|
493 | shareContext = 0;
|
---|
494 | }
|
---|
495 |
|
---|
496 | d->cx = 0;
|
---|
497 | if (shareContext) {
|
---|
498 | d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi,
|
---|
499 | (GLXContext)shareContext->d_func()->cx, direct);
|
---|
500 | d->screen = ((XVisualInfo*)d->vi)->screen;
|
---|
501 | if (d->cx) {
|
---|
502 | QGLContext *share = const_cast<QGLContext *>(shareContext);
|
---|
503 | d->sharing = true;
|
---|
504 | share->d_func()->sharing = true;
|
---|
505 | }
|
---|
506 | }
|
---|
507 | if (!d->cx) {
|
---|
508 | d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi, NULL, direct);
|
---|
509 | d->screen = ((XVisualInfo*)d->vi)->screen;
|
---|
510 | }
|
---|
511 | if (!d->cx)
|
---|
512 | return false;
|
---|
513 | d->glFormat.setDirectRendering(glXIsDirect(disp, (GLXContext)d->cx));
|
---|
514 | if (deviceIsPixmap()) {
|
---|
515 | #if defined(GLX_MESA_pixmap_colormap) && defined(QGL_USE_MESA_EXT)
|
---|
516 | d->gpm = glXCreateGLXPixmapMESA(disp, (XVisualInfo *)d->vi,
|
---|
517 | qt_x11Handle(d->paintDevice),
|
---|
518 | qt_gl_choose_cmap(disp, (XVisualInfo *)d->vi));
|
---|
519 | #else
|
---|
520 | d->gpm = (quint32)glXCreateGLXPixmap(disp, (XVisualInfo *)d->vi,
|
---|
521 | qt_x11Handle(d->paintDevice));
|
---|
522 | #endif
|
---|
523 | if (!d->gpm)
|
---|
524 | return false;
|
---|
525 | }
|
---|
526 | QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
|
---|
527 | if (extensions.match("GLX_SGI_video_sync")) {
|
---|
528 | if (d->glFormat.swapInterval() == -1)
|
---|
529 | d->glFormat.setSwapInterval(0);
|
---|
530 | } else {
|
---|
531 | d->glFormat.setSwapInterval(-1);
|
---|
532 | }
|
---|
533 | return true;
|
---|
534 | }
|
---|
535 |
|
---|
536 | /*
|
---|
537 | See qgl.cpp for qdoc comment.
|
---|
538 | */
|
---|
539 | void *QGLContext::chooseVisual()
|
---|
540 | {
|
---|
541 | Q_D(QGLContext);
|
---|
542 | static const int bufDepths[] = { 8, 4, 2, 1 }; // Try 16, 12 also?
|
---|
543 | //todo: if pixmap, also make sure that vi->depth == pixmap->depth
|
---|
544 | void* vis = 0;
|
---|
545 | int i = 0;
|
---|
546 | bool fail = false;
|
---|
547 | QGLFormat fmt = format();
|
---|
548 | bool tryDouble = !fmt.doubleBuffer(); // Some GL impl's only have double
|
---|
549 | bool triedDouble = false;
|
---|
550 | bool triedSample = false;
|
---|
551 | if (fmt.sampleBuffers())
|
---|
552 | fmt.setSampleBuffers(QGLExtensions::glExtensions & QGLExtensions::SampleBuffers);
|
---|
553 | while(!fail && !(vis = tryVisual(fmt, bufDepths[i]))) {
|
---|
554 | if (!fmt.rgba() && bufDepths[i] > 1) {
|
---|
555 | i++;
|
---|
556 | continue;
|
---|
557 | }
|
---|
558 | if (tryDouble) {
|
---|
559 | fmt.setDoubleBuffer(true);
|
---|
560 | tryDouble = false;
|
---|
561 | triedDouble = true;
|
---|
562 | continue;
|
---|
563 | } else if (triedDouble) {
|
---|
564 | fmt.setDoubleBuffer(false);
|
---|
565 | triedDouble = false;
|
---|
566 | }
|
---|
567 | if (!triedSample && fmt.sampleBuffers()) {
|
---|
568 | fmt.setSampleBuffers(false);
|
---|
569 | triedSample = true;
|
---|
570 | continue;
|
---|
571 | }
|
---|
572 | if (fmt.stereo()) {
|
---|
573 | fmt.setStereo(false);
|
---|
574 | continue;
|
---|
575 | }
|
---|
576 | if (fmt.accum()) {
|
---|
577 | fmt.setAccum(false);
|
---|
578 | continue;
|
---|
579 | }
|
---|
580 | if (fmt.stencil()) {
|
---|
581 | fmt.setStencil(false);
|
---|
582 | continue;
|
---|
583 | }
|
---|
584 | if (fmt.alpha()) {
|
---|
585 | fmt.setAlpha(false);
|
---|
586 | continue;
|
---|
587 | }
|
---|
588 | if (fmt.depth()) {
|
---|
589 | fmt.setDepth(false);
|
---|
590 | continue;
|
---|
591 | }
|
---|
592 | if (fmt.doubleBuffer()) {
|
---|
593 | fmt.setDoubleBuffer(false);
|
---|
594 | continue;
|
---|
595 | }
|
---|
596 | fail = true;
|
---|
597 | }
|
---|
598 | d->glFormat = fmt;
|
---|
599 | return vis;
|
---|
600 | }
|
---|
601 |
|
---|
602 | /*
|
---|
603 | See qgl.cpp for qdoc comment.
|
---|
604 | */
|
---|
605 | void *QGLContext::tryVisual(const QGLFormat& f, int bufDepth)
|
---|
606 | {
|
---|
607 | Q_D(QGLContext);
|
---|
608 | int spec[45];
|
---|
609 | int i = 0;
|
---|
610 | spec[i++] = GLX_LEVEL;
|
---|
611 | spec[i++] = f.plane();
|
---|
612 | const QX11Info *xinfo = qt_x11Info(d->paintDevice);
|
---|
613 | bool useFBConfig = false;
|
---|
614 |
|
---|
615 | #if defined(GLX_VERSION_1_3) && !defined(QT_NO_XRENDER) && !defined(Q_OS_HPUX)
|
---|
616 | /*
|
---|
617 | HPUX defines GLX_VERSION_1_3 but does not implement the corresponding functions.
|
---|
618 | Specifically glXChooseFBConfig and glXGetVisualFromFBConfig are not implemented.
|
---|
619 | */
|
---|
620 | QWidget* widget = 0;
|
---|
621 | if (d->paintDevice->devType() == QInternal::Widget)
|
---|
622 | widget = static_cast<QWidget*>(d->paintDevice);
|
---|
623 |
|
---|
624 | // Only use glXChooseFBConfig for widgets if we're trying to get an ARGB visual
|
---|
625 | if (widget && widget->testAttribute(Qt::WA_TranslucentBackground) && X11->use_xrender)
|
---|
626 | useFBConfig = true;
|
---|
627 | #endif
|
---|
628 |
|
---|
629 | #if defined(GLX_VERSION_1_1) && defined(GLX_EXT_visual_info)
|
---|
630 | static bool useTranspExt = false;
|
---|
631 | static bool useTranspExtChecked = false;
|
---|
632 | if (f.plane() && !useTranspExtChecked && d->paintDevice) {
|
---|
633 | QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
|
---|
634 | useTranspExt = extensions.match("GLX_EXT_visual_info");
|
---|
635 | //# (A bit simplistic; that could theoretically be a substring)
|
---|
636 | if (useTranspExt) {
|
---|
637 | QByteArray cstr(glXGetClientString(xinfo->display(), GLX_VENDOR));
|
---|
638 | useTranspExt = !cstr.contains("Xi Graphics"); // bug workaround
|
---|
639 | if (useTranspExt) {
|
---|
640 | // bug workaround - some systems (eg. FireGL) refuses to return an overlay
|
---|
641 | // visual if the GLX_TRANSPARENT_TYPE_EXT attribute is specified, even if
|
---|
642 | // the implementation supports transparent overlays
|
---|
643 | int tmpSpec[] = { GLX_LEVEL, f.plane(), GLX_TRANSPARENT_TYPE_EXT,
|
---|
644 | f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT,
|
---|
645 | XNone };
|
---|
646 | XVisualInfo * vinf = glXChooseVisual(xinfo->display(), xinfo->screen(), tmpSpec);
|
---|
647 | if (!vinf) {
|
---|
648 | useTranspExt = false;
|
---|
649 | }
|
---|
650 | }
|
---|
651 | }
|
---|
652 |
|
---|
653 | useTranspExtChecked = true;
|
---|
654 | }
|
---|
655 | if (f.plane() && useTranspExt && !useFBConfig) {
|
---|
656 | // Required to avoid non-transparent overlay visual(!) on some systems
|
---|
657 | spec[i++] = GLX_TRANSPARENT_TYPE_EXT;
|
---|
658 | spec[i++] = f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT;
|
---|
659 | }
|
---|
660 | #endif
|
---|
661 |
|
---|
662 | #if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
|
---|
663 | // GLX_RENDER_TYPE is only in glx >=1.3
|
---|
664 | if (useFBConfig) {
|
---|
665 | spec[i++] = GLX_RENDER_TYPE;
|
---|
666 | spec[i++] = f.rgba() ? GLX_RGBA_BIT : GLX_COLOR_INDEX_BIT;
|
---|
667 | }
|
---|
668 | #endif
|
---|
669 |
|
---|
670 | if (f.doubleBuffer())
|
---|
671 | spec[i++] = GLX_DOUBLEBUFFER;
|
---|
672 | if (useFBConfig)
|
---|
673 | spec[i++] = True;
|
---|
674 | if (f.depth()) {
|
---|
675 | spec[i++] = GLX_DEPTH_SIZE;
|
---|
676 | spec[i++] = f.depthBufferSize() == -1 ? 1 : f.depthBufferSize();
|
---|
677 | }
|
---|
678 | if (f.stereo()) {
|
---|
679 | spec[i++] = GLX_STEREO;
|
---|
680 | if (useFBConfig)
|
---|
681 | spec[i++] = True;
|
---|
682 | }
|
---|
683 | if (f.stencil()) {
|
---|
684 | spec[i++] = GLX_STENCIL_SIZE;
|
---|
685 | spec[i++] = f.stencilBufferSize() == -1 ? 1 : f.stencilBufferSize();
|
---|
686 | }
|
---|
687 | if (f.rgba()) {
|
---|
688 | if (!useFBConfig)
|
---|
689 | spec[i++] = GLX_RGBA;
|
---|
690 | spec[i++] = GLX_RED_SIZE;
|
---|
691 | spec[i++] = f.redBufferSize() == -1 ? 1 : f.redBufferSize();
|
---|
692 | spec[i++] = GLX_GREEN_SIZE;
|
---|
693 | spec[i++] = f.greenBufferSize() == -1 ? 1 : f.greenBufferSize();
|
---|
694 | spec[i++] = GLX_BLUE_SIZE;
|
---|
695 | spec[i++] = f.blueBufferSize() == -1 ? 1 : f.blueBufferSize();
|
---|
696 | if (f.alpha()) {
|
---|
697 | spec[i++] = GLX_ALPHA_SIZE;
|
---|
698 | spec[i++] = f.alphaBufferSize() == -1 ? 1 : f.alphaBufferSize();
|
---|
699 | }
|
---|
700 | if (f.accum()) {
|
---|
701 | spec[i++] = GLX_ACCUM_RED_SIZE;
|
---|
702 | spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize();
|
---|
703 | spec[i++] = GLX_ACCUM_GREEN_SIZE;
|
---|
704 | spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize();
|
---|
705 | spec[i++] = GLX_ACCUM_BLUE_SIZE;
|
---|
706 | spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize();
|
---|
707 | if (f.alpha()) {
|
---|
708 | spec[i++] = GLX_ACCUM_ALPHA_SIZE;
|
---|
709 | spec[i++] = f.accumBufferSize() == -1 ? 1 : f.accumBufferSize();
|
---|
710 | }
|
---|
711 | }
|
---|
712 | } else {
|
---|
713 | spec[i++] = GLX_BUFFER_SIZE;
|
---|
714 | spec[i++] = bufDepth;
|
---|
715 | }
|
---|
716 |
|
---|
717 | if (f.sampleBuffers()) {
|
---|
718 | spec[i++] = GLX_SAMPLE_BUFFERS_ARB;
|
---|
719 | spec[i++] = 1;
|
---|
720 | spec[i++] = GLX_SAMPLES_ARB;
|
---|
721 | spec[i++] = f.samples() == -1 ? 4 : f.samples();
|
---|
722 | }
|
---|
723 |
|
---|
724 | #if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
|
---|
725 | if (useFBConfig) {
|
---|
726 | spec[i++] = GLX_DRAWABLE_TYPE;
|
---|
727 | switch(d->paintDevice->devType()) {
|
---|
728 | case QInternal::Pixmap:
|
---|
729 | spec[i++] = GLX_PIXMAP_BIT;
|
---|
730 | break;
|
---|
731 | case QInternal::Pbuffer:
|
---|
732 | spec[i++] = GLX_PBUFFER_BIT;
|
---|
733 | break;
|
---|
734 | default:
|
---|
735 | qWarning("QGLContext: Unknown paint device type %d", d->paintDevice->devType());
|
---|
736 | // Fall-through & assume it's a window
|
---|
737 | case QInternal::Widget:
|
---|
738 | spec[i++] = GLX_WINDOW_BIT;
|
---|
739 | break;
|
---|
740 | };
|
---|
741 | }
|
---|
742 | #endif
|
---|
743 |
|
---|
744 | spec[i] = XNone;
|
---|
745 |
|
---|
746 |
|
---|
747 | XVisualInfo* chosenVisualInfo = 0;
|
---|
748 |
|
---|
749 | #if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
|
---|
750 | while (useFBConfig) {
|
---|
751 | GLXFBConfig *configs;
|
---|
752 | int configCount = 0;
|
---|
753 | configs = glXChooseFBConfig(xinfo->display(), xinfo->screen(), spec, &configCount);
|
---|
754 |
|
---|
755 | if (!configs)
|
---|
756 | break; // fallback to trying glXChooseVisual
|
---|
757 |
|
---|
758 | for (i = 0; i < configCount; ++i) {
|
---|
759 | XVisualInfo* vi;
|
---|
760 | vi = glXGetVisualFromFBConfig(xinfo->display(), configs[i]);
|
---|
761 | if (!vi)
|
---|
762 | continue;
|
---|
763 |
|
---|
764 | #if !defined(QT_NO_XRENDER)
|
---|
765 | QWidget* w = 0;
|
---|
766 | if (d->paintDevice->devType() == QInternal::Widget)
|
---|
767 | w = static_cast<QWidget*>(d->paintDevice);
|
---|
768 |
|
---|
769 | if (w && w->testAttribute(Qt::WA_TranslucentBackground) && f.alpha()) {
|
---|
770 | // Attempt to find a config who's visual has a proper alpha channel
|
---|
771 | XRenderPictFormat *pictFormat;
|
---|
772 | pictFormat = XRenderFindVisualFormat(xinfo->display(), vi->visual);
|
---|
773 |
|
---|
774 | if (pictFormat && (pictFormat->type == PictTypeDirect) && pictFormat->direct.alphaMask) {
|
---|
775 | // The pict format for the visual matching the FBConfig indicates ARGB
|
---|
776 | if (chosenVisualInfo)
|
---|
777 | XFree(chosenVisualInfo);
|
---|
778 | chosenVisualInfo = vi;
|
---|
779 | break;
|
---|
780 | }
|
---|
781 | } else
|
---|
782 | #endif //QT_NO_XRENDER
|
---|
783 | if (chosenVisualInfo) {
|
---|
784 | // If we've got a visual we can use and we're not trying to find one with a
|
---|
785 | // real alpha channel, we might as well just use the one we've got
|
---|
786 | break;
|
---|
787 | }
|
---|
788 |
|
---|
789 | if (!chosenVisualInfo)
|
---|
790 | chosenVisualInfo = vi; // Have something to fall back to
|
---|
791 | else
|
---|
792 | XFree(vi);
|
---|
793 | }
|
---|
794 |
|
---|
795 | XFree(configs);
|
---|
796 | break;
|
---|
797 | }
|
---|
798 | #endif // defined(GLX_VERSION_1_3)
|
---|
799 |
|
---|
800 | if (!chosenVisualInfo)
|
---|
801 | chosenVisualInfo = glXChooseVisual(xinfo->display(), xinfo->screen(), spec);
|
---|
802 |
|
---|
803 | return chosenVisualInfo;
|
---|
804 | }
|
---|
805 |
|
---|
806 |
|
---|
807 | void QGLContext::reset()
|
---|
808 | {
|
---|
809 | Q_D(QGLContext);
|
---|
810 | if (!d->valid)
|
---|
811 | return;
|
---|
812 | d->cleanup();
|
---|
813 | const QX11Info *xinfo = qt_x11Info(d->paintDevice);
|
---|
814 | doneCurrent();
|
---|
815 | if (d->gpm)
|
---|
816 | glXDestroyGLXPixmap(xinfo->display(), (GLXPixmap)d->gpm);
|
---|
817 | d->gpm = 0;
|
---|
818 | glXDestroyContext(xinfo->display(), (GLXContext)d->cx);
|
---|
819 | if (d->vi)
|
---|
820 | XFree(d->vi);
|
---|
821 | d->vi = 0;
|
---|
822 | d->cx = 0;
|
---|
823 | d->crWin = false;
|
---|
824 | d->sharing = false;
|
---|
825 | d->valid = false;
|
---|
826 | d->transpColor = QColor();
|
---|
827 | d->initDone = false;
|
---|
828 | qgl_share_reg()->removeShare(this);
|
---|
829 | }
|
---|
830 |
|
---|
831 |
|
---|
832 | void QGLContext::makeCurrent()
|
---|
833 | {
|
---|
834 | Q_D(QGLContext);
|
---|
835 | if (!d->valid) {
|
---|
836 | qWarning("QGLContext::makeCurrent(): Cannot make invalid context current.");
|
---|
837 | return;
|
---|
838 | }
|
---|
839 | const QX11Info *xinfo = qt_x11Info(d->paintDevice);
|
---|
840 | bool ok = true;
|
---|
841 | if (d->paintDevice->devType() == QInternal::Pixmap) {
|
---|
842 | ok = glXMakeCurrent(xinfo->display(), (GLXPixmap)d->gpm, (GLXContext)d->cx);
|
---|
843 | } else if (d->paintDevice->devType() == QInternal::Pbuffer) {
|
---|
844 | ok = glXMakeCurrent(xinfo->display(), (GLXPbuffer)d->pbuf, (GLXContext)d->cx);
|
---|
845 | } else if (d->paintDevice->devType() == QInternal::Widget) {
|
---|
846 | ok = glXMakeCurrent(xinfo->display(), ((QWidget *)d->paintDevice)->winId(), (GLXContext)d->cx);
|
---|
847 | }
|
---|
848 | if (!ok)
|
---|
849 | qWarning("QGLContext::makeCurrent(): Failed.");
|
---|
850 |
|
---|
851 | if (ok)
|
---|
852 | QGLContextPrivate::setCurrentContext(this);
|
---|
853 | }
|
---|
854 |
|
---|
855 | void QGLContext::doneCurrent()
|
---|
856 | {
|
---|
857 | Q_D(QGLContext);
|
---|
858 | glXMakeCurrent(qt_x11Info(d->paintDevice)->display(), 0, 0);
|
---|
859 | QGLContextPrivate::setCurrentContext(0);
|
---|
860 | }
|
---|
861 |
|
---|
862 |
|
---|
863 | void QGLContext::swapBuffers() const
|
---|
864 | {
|
---|
865 | Q_D(const QGLContext);
|
---|
866 | if (!d->valid)
|
---|
867 | return;
|
---|
868 | if (!deviceIsPixmap()) {
|
---|
869 | int interval = d->glFormat.swapInterval();
|
---|
870 | if (interval > 0) {
|
---|
871 | typedef int (*qt_glXGetVideoSyncSGI)(uint *);
|
---|
872 | typedef int (*qt_glXWaitVideoSyncSGI)(int, int, uint *);
|
---|
873 | static qt_glXGetVideoSyncSGI glXGetVideoSyncSGI = 0;
|
---|
874 | static qt_glXWaitVideoSyncSGI glXWaitVideoSyncSGI = 0;
|
---|
875 | static bool resolved = false;
|
---|
876 | if (!resolved) {
|
---|
877 | const QX11Info *xinfo = qt_x11Info(d->paintDevice);
|
---|
878 | QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
|
---|
879 | if (extensions.match("GLX_SGI_video_sync")) {
|
---|
880 | glXGetVideoSyncSGI = (qt_glXGetVideoSyncSGI)qglx_getProcAddress("glXGetVideoSyncSGI");
|
---|
881 | glXWaitVideoSyncSGI = (qt_glXWaitVideoSyncSGI)qglx_getProcAddress("glXWaitVideoSyncSGI");
|
---|
882 | }
|
---|
883 | resolved = true;
|
---|
884 | }
|
---|
885 | if (glXGetVideoSyncSGI && glXWaitVideoSyncSGI) {
|
---|
886 | uint counter;
|
---|
887 | if (!glXGetVideoSyncSGI(&counter))
|
---|
888 | glXWaitVideoSyncSGI(interval + 1, (counter + interval) % (interval + 1), &counter);
|
---|
889 | }
|
---|
890 | }
|
---|
891 | glXSwapBuffers(qt_x11Info(d->paintDevice)->display(),
|
---|
892 | static_cast<QWidget *>(d->paintDevice)->winId());
|
---|
893 | }
|
---|
894 | }
|
---|
895 |
|
---|
896 | QColor QGLContext::overlayTransparentColor() const
|
---|
897 | {
|
---|
898 | if (isValid())
|
---|
899 | return Qt::transparent;
|
---|
900 | return QColor(); // Invalid color
|
---|
901 | }
|
---|
902 |
|
---|
903 | static uint qt_transparent_pixel(VisualID id, int screen)
|
---|
904 | {
|
---|
905 | for (int i = 0; i < trans_colors.size(); i++) {
|
---|
906 | if (trans_colors[i].vis == id && trans_colors[i].screen == screen)
|
---|
907 | return trans_colors[i].color;
|
---|
908 | }
|
---|
909 | return 0;
|
---|
910 | }
|
---|
911 |
|
---|
912 | uint QGLContext::colorIndex(const QColor& c) const
|
---|
913 | {
|
---|
914 | Q_D(const QGLContext);
|
---|
915 | int screen = ((XVisualInfo *)d->vi)->screen;
|
---|
916 | QColormap colmap = QColormap::instance(screen);
|
---|
917 | if (isValid()) {
|
---|
918 | if (format().plane() && c == Qt::transparent) {
|
---|
919 | return qt_transparent_pixel(((XVisualInfo *)d->vi)->visualid,
|
---|
920 | ((XVisualInfo *)d->vi)->screen);
|
---|
921 | }
|
---|
922 | if (((XVisualInfo*)d->vi)->visualid ==
|
---|
923 | XVisualIDFromVisual((Visual *) QX11Info::appVisual(screen)))
|
---|
924 | return colmap.pixel(c); // We're using QColor's cmap
|
---|
925 |
|
---|
926 | XVisualInfo *info = (XVisualInfo *) d->vi;
|
---|
927 | CMapEntryHash *hash = cmap_handler()->cmap_hash;
|
---|
928 | CMapEntryHash::ConstIterator it = hash->constFind(long(info->visualid)
|
---|
929 | + (info->screen * 256));
|
---|
930 | QCMapEntry *x = 0;
|
---|
931 | if (it != hash->constEnd())
|
---|
932 | x = it.value();
|
---|
933 | if (x && !x->alloc) { // It's a standard colormap
|
---|
934 | int rf = (int)(((float)c.red() * (x->scmap.red_max+1))/256.0);
|
---|
935 | int gf = (int)(((float)c.green() * (x->scmap.green_max+1))/256.0);
|
---|
936 | int bf = (int)(((float)c.blue() * (x->scmap.blue_max+1))/256.0);
|
---|
937 | uint p = x->scmap.base_pixel
|
---|
938 | + (rf * x->scmap.red_mult)
|
---|
939 | + (gf * x->scmap.green_mult)
|
---|
940 | + (bf * x->scmap.blue_mult);
|
---|
941 | return p;
|
---|
942 | } else {
|
---|
943 | QMap<int, QRgb> &cmap = (*cmap_handler()->qglcmap_hash)[(long)info->visualid];
|
---|
944 |
|
---|
945 | // already in the map?
|
---|
946 | QRgb target = c.rgb();
|
---|
947 | QMap<int, QRgb>::Iterator it = cmap.begin();
|
---|
948 | for (; it != cmap.end(); ++it) {
|
---|
949 | if ((*it) == target)
|
---|
950 | return it.key();
|
---|
951 | }
|
---|
952 |
|
---|
953 | // need to alloc color
|
---|
954 | unsigned long plane_mask[2];
|
---|
955 | unsigned long color_map_entry;
|
---|
956 | if (!XAllocColorCells (QX11Info::display(), x->cmap, true, plane_mask, 0,
|
---|
957 | &color_map_entry, 1))
|
---|
958 | return colmap.pixel(c);
|
---|
959 |
|
---|
960 | XColor col;
|
---|
961 | col.flags = DoRed | DoGreen | DoBlue;
|
---|
962 | col.pixel = color_map_entry;
|
---|
963 | col.red = (ushort)((qRed(c.rgb()) / 255.0) * 65535.0 + 0.5);
|
---|
964 | col.green = (ushort)((qGreen(c.rgb()) / 255.0) * 65535.0 + 0.5);
|
---|
965 | col.blue = (ushort)((qBlue(c.rgb()) / 255.0) * 65535.0 + 0.5);
|
---|
966 | XStoreColor(QX11Info::display(), x->cmap, &col);
|
---|
967 |
|
---|
968 | cmap.insert(color_map_entry, target);
|
---|
969 | return color_map_entry;
|
---|
970 | }
|
---|
971 | }
|
---|
972 | return 0;
|
---|
973 | }
|
---|
974 |
|
---|
975 | #ifndef QT_NO_FONTCONFIG
|
---|
976 | /*! \internal
|
---|
977 | This is basically a substitute for glxUseXFont() which can only
|
---|
978 | handle XLFD fonts. This version relies on freetype to render the
|
---|
979 | glyphs, but it works with all fonts that fontconfig provides - both
|
---|
980 | antialiased and aliased bitmap and outline fonts.
|
---|
981 | */
|
---|
982 | static void qgl_use_font(QFontEngineFT *engine, int first, int count, int listBase)
|
---|
983 | {
|
---|
984 | GLfloat color[4];
|
---|
985 | glGetFloatv(GL_CURRENT_COLOR, color);
|
---|
986 |
|
---|
987 | // save the pixel unpack state
|
---|
988 | GLint gl_swapbytes, gl_lsbfirst, gl_rowlength, gl_skiprows, gl_skippixels, gl_alignment;
|
---|
989 | glGetIntegerv (GL_UNPACK_SWAP_BYTES, &gl_swapbytes);
|
---|
990 | glGetIntegerv (GL_UNPACK_LSB_FIRST, &gl_lsbfirst);
|
---|
991 | glGetIntegerv (GL_UNPACK_ROW_LENGTH, &gl_rowlength);
|
---|
992 | glGetIntegerv (GL_UNPACK_SKIP_ROWS, &gl_skiprows);
|
---|
993 | glGetIntegerv (GL_UNPACK_SKIP_PIXELS, &gl_skippixels);
|
---|
994 | glGetIntegerv (GL_UNPACK_ALIGNMENT, &gl_alignment);
|
---|
995 |
|
---|
996 | glPixelStorei(GL_UNPACK_SWAP_BYTES, GL_FALSE);
|
---|
997 | glPixelStorei(GL_UNPACK_LSB_FIRST, GL_FALSE);
|
---|
998 | glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
|
---|
999 | glPixelStorei(GL_UNPACK_SKIP_ROWS, 0);
|
---|
1000 | glPixelStorei(GL_UNPACK_SKIP_PIXELS, 0);
|
---|
1001 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
---|
1002 |
|
---|
1003 | const bool antialiased = engine->drawAntialiased();
|
---|
1004 | FT_Face face = engine->lockFace();
|
---|
1005 |
|
---|
1006 | // start generating font glyphs
|
---|
1007 | for (int i = first; i < count; ++i) {
|
---|
1008 | int list = listBase + i;
|
---|
1009 | GLfloat x0, y0, dx, dy;
|
---|
1010 |
|
---|
1011 | FT_Error err;
|
---|
1012 |
|
---|
1013 | err = FT_Load_Glyph(face, FT_Get_Char_Index(face, i), FT_LOAD_DEFAULT);
|
---|
1014 | if (err) {
|
---|
1015 | qDebug("failed loading glyph %d from font", i);
|
---|
1016 | Q_ASSERT(!err);
|
---|
1017 | }
|
---|
1018 | err = FT_Render_Glyph(face->glyph, (antialiased ? FT_RENDER_MODE_NORMAL
|
---|
1019 | : FT_RENDER_MODE_MONO));
|
---|
1020 | if (err) {
|
---|
1021 | qDebug("failed rendering glyph %d from font", i);
|
---|
1022 | Q_ASSERT(!err);
|
---|
1023 | }
|
---|
1024 |
|
---|
1025 | FT_Bitmap bm = face->glyph->bitmap;
|
---|
1026 | x0 = face->glyph->metrics.horiBearingX >> 6;
|
---|
1027 | y0 = (face->glyph->metrics.height - face->glyph->metrics.horiBearingY) >> 6;
|
---|
1028 | dx = face->glyph->metrics.horiAdvance >> 6;
|
---|
1029 | dy = 0;
|
---|
1030 | int sz = bm.pitch * bm.rows;
|
---|
1031 | uint *aa_glyph = 0;
|
---|
1032 | uchar *ua_glyph = 0;
|
---|
1033 |
|
---|
1034 | if (antialiased)
|
---|
1035 | aa_glyph = new uint[sz];
|
---|
1036 | else
|
---|
1037 | ua_glyph = new uchar[sz];
|
---|
1038 |
|
---|
1039 | // convert to GL format
|
---|
1040 | for (int y = 0; y < bm.rows; ++y) {
|
---|
1041 | for (int x = 0; x < bm.pitch; ++x) {
|
---|
1042 | int c1 = y*bm.pitch + x;
|
---|
1043 | int c2 = (bm.rows - y - 1) > 0 ? (bm.rows-y-1)*bm.pitch + x : x;
|
---|
1044 | if (antialiased) {
|
---|
1045 | aa_glyph[c1] = (int(color[0]*255) << 24)
|
---|
1046 | | (int(color[1]*255) << 16)
|
---|
1047 | | (int(color[2]*255) << 8) | bm.buffer[c2];
|
---|
1048 | } else {
|
---|
1049 | ua_glyph[c1] = bm.buffer[c2];
|
---|
1050 | }
|
---|
1051 | }
|
---|
1052 | }
|
---|
1053 |
|
---|
1054 | glNewList(list, GL_COMPILE);
|
---|
1055 | if (antialiased) {
|
---|
1056 | // calling glBitmap() is just a trick to move the current
|
---|
1057 | // raster pos, since glGet*() won't work in display lists
|
---|
1058 | glBitmap(0, 0, 0, 0, x0, -y0, 0);
|
---|
1059 | glDrawPixels(bm.pitch, bm.rows, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, aa_glyph);
|
---|
1060 | glBitmap(0, 0, 0, 0, dx-x0, y0, 0);
|
---|
1061 | } else {
|
---|
1062 | glBitmap(bm.pitch*8, bm.rows, -x0, y0, dx, dy, ua_glyph);
|
---|
1063 | }
|
---|
1064 | glEndList();
|
---|
1065 | antialiased ? delete[] aa_glyph : delete[] ua_glyph;
|
---|
1066 | }
|
---|
1067 |
|
---|
1068 | engine->unlockFace();
|
---|
1069 |
|
---|
1070 | // restore pixel unpack settings
|
---|
1071 | glPixelStorei(GL_UNPACK_SWAP_BYTES, gl_swapbytes);
|
---|
1072 | glPixelStorei(GL_UNPACK_LSB_FIRST, gl_lsbfirst);
|
---|
1073 | glPixelStorei(GL_UNPACK_ROW_LENGTH, gl_rowlength);
|
---|
1074 | glPixelStorei(GL_UNPACK_SKIP_ROWS, gl_skiprows);
|
---|
1075 | glPixelStorei(GL_UNPACK_SKIP_PIXELS, gl_skippixels);
|
---|
1076 | glPixelStorei(GL_UNPACK_ALIGNMENT, gl_alignment);
|
---|
1077 | }
|
---|
1078 | #endif
|
---|
1079 |
|
---|
1080 | #undef d
|
---|
1081 | void QGLContext::generateFontDisplayLists(const QFont & fnt, int listBase)
|
---|
1082 | {
|
---|
1083 | QFont f(fnt);
|
---|
1084 | QFontEngine *engine = f.d->engineForScript(QUnicodeTables::Common);
|
---|
1085 |
|
---|
1086 | if (engine->type() == QFontEngine::Multi)
|
---|
1087 | engine = static_cast<QFontEngineMulti *>(engine)->engine(0);
|
---|
1088 | #ifndef QT_NO_FONTCONFIG
|
---|
1089 | if(engine->type() == QFontEngine::Freetype) {
|
---|
1090 | qgl_use_font(static_cast<QFontEngineFT *>(engine), 0, 256, listBase);
|
---|
1091 | return;
|
---|
1092 | }
|
---|
1093 | #endif
|
---|
1094 | // glXUseXFont() only works with XLFD font structures and a few GL
|
---|
1095 | // drivers crash if 0 is passed as the font handle
|
---|
1096 | f.setStyleStrategy(QFont::OpenGLCompatible);
|
---|
1097 | if (f.handle() && engine->type() == QFontEngine::XLFD)
|
---|
1098 | glXUseXFont(static_cast<Font>(f.handle()), 0, 256, listBase);
|
---|
1099 | }
|
---|
1100 |
|
---|
1101 | void *QGLContext::getProcAddress(const QString &proc) const
|
---|
1102 | {
|
---|
1103 | typedef void *(*qt_glXGetProcAddressARB)(const GLubyte *);
|
---|
1104 | static qt_glXGetProcAddressARB glXGetProcAddressARB = 0;
|
---|
1105 | static bool resolved = false;
|
---|
1106 |
|
---|
1107 | if (resolved && !glXGetProcAddressARB)
|
---|
1108 | return 0;
|
---|
1109 | if (!glXGetProcAddressARB) {
|
---|
1110 | QGLExtensionMatcher extensions(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS));
|
---|
1111 | if (extensions.match("GLX_ARB_get_proc_address")) {
|
---|
1112 | #if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
|
---|
1113 | void *handle = dlopen(NULL, RTLD_LAZY);
|
---|
1114 | if (handle) {
|
---|
1115 | glXGetProcAddressARB = (qt_glXGetProcAddressARB) dlsym(handle, "glXGetProcAddressARB");
|
---|
1116 | dlclose(handle);
|
---|
1117 | }
|
---|
1118 | if (!glXGetProcAddressARB)
|
---|
1119 | #endif
|
---|
1120 | {
|
---|
1121 | #if !defined(QT_NO_LIBRARY)
|
---|
1122 | extern const QString qt_gl_library_name();
|
---|
1123 | QLibrary lib(qt_gl_library_name());
|
---|
1124 | glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB");
|
---|
1125 | #endif
|
---|
1126 | }
|
---|
1127 | }
|
---|
1128 | resolved = true;
|
---|
1129 | }
|
---|
1130 | if (!glXGetProcAddressARB)
|
---|
1131 | return 0;
|
---|
1132 | return glXGetProcAddressARB(reinterpret_cast<const GLubyte *>(proc.toLatin1().data()));
|
---|
1133 | }
|
---|
1134 |
|
---|
1135 | /*****************************************************************************
|
---|
1136 | QGLOverlayWidget (Internal overlay class for X11)
|
---|
1137 | *****************************************************************************/
|
---|
1138 |
|
---|
1139 | class QGLOverlayWidget : public QGLWidget
|
---|
1140 | {
|
---|
1141 | Q_OBJECT
|
---|
1142 | public:
|
---|
1143 | QGLOverlayWidget(const QGLFormat& format, QGLWidget* parent, const QGLWidget* shareWidget=0);
|
---|
1144 |
|
---|
1145 | protected:
|
---|
1146 | void initializeGL();
|
---|
1147 | void paintGL();
|
---|
1148 | void resizeGL(int w, int h);
|
---|
1149 | bool x11Event(XEvent *e) { return realWidget->x11Event(e); }
|
---|
1150 |
|
---|
1151 | private:
|
---|
1152 | QGLWidget* realWidget;
|
---|
1153 |
|
---|
1154 | private:
|
---|
1155 | Q_DISABLE_COPY(QGLOverlayWidget)
|
---|
1156 | };
|
---|
1157 |
|
---|
1158 |
|
---|
1159 | QGLOverlayWidget::QGLOverlayWidget(const QGLFormat& format, QGLWidget* parent,
|
---|
1160 | const QGLWidget* shareWidget)
|
---|
1161 | : QGLWidget(format, parent, shareWidget ? shareWidget->d_func()->olw : 0)
|
---|
1162 | {
|
---|
1163 | setAttribute(Qt::WA_X11OpenGLOverlay);
|
---|
1164 | realWidget = parent;
|
---|
1165 | }
|
---|
1166 |
|
---|
1167 |
|
---|
1168 |
|
---|
1169 | void QGLOverlayWidget::initializeGL()
|
---|
1170 | {
|
---|
1171 | QColor transparentColor = context()->overlayTransparentColor();
|
---|
1172 | if (transparentColor.isValid())
|
---|
1173 | qglClearColor(transparentColor);
|
---|
1174 | else
|
---|
1175 | qWarning("QGLOverlayWidget::initializeGL(): Could not get transparent color");
|
---|
1176 | realWidget->initializeOverlayGL();
|
---|
1177 | }
|
---|
1178 |
|
---|
1179 |
|
---|
1180 | void QGLOverlayWidget::resizeGL(int w, int h)
|
---|
1181 | {
|
---|
1182 | glViewport(0, 0, w, h);
|
---|
1183 | realWidget->resizeOverlayGL(w, h);
|
---|
1184 | }
|
---|
1185 |
|
---|
1186 |
|
---|
1187 | void QGLOverlayWidget::paintGL()
|
---|
1188 | {
|
---|
1189 | realWidget->paintOverlayGL();
|
---|
1190 | }
|
---|
1191 |
|
---|
1192 | #undef Bool
|
---|
1193 | QT_BEGIN_INCLUDE_NAMESPACE
|
---|
1194 | #include "qgl_x11.moc"
|
---|
1195 | QT_END_INCLUDE_NAMESPACE
|
---|
1196 |
|
---|
1197 | /*****************************************************************************
|
---|
1198 | QGLWidget UNIX/GLX-specific code
|
---|
1199 | *****************************************************************************/
|
---|
1200 | void QGLWidgetPrivate::init(QGLContext *context, const QGLWidget *shareWidget)
|
---|
1201 | {
|
---|
1202 | Q_Q(QGLWidget);
|
---|
1203 | initContext(context, shareWidget);
|
---|
1204 | olw = 0;
|
---|
1205 |
|
---|
1206 | if (q->isValid() && context->format().hasOverlay()) {
|
---|
1207 | QString olwName = q->objectName();
|
---|
1208 | olwName += QLatin1String("-QGL_internal_overlay_widget");
|
---|
1209 | olw = new QGLOverlayWidget(QGLFormat::defaultOverlayFormat(), q, shareWidget);
|
---|
1210 | olw->setObjectName(olwName);
|
---|
1211 | if (olw->isValid()) {
|
---|
1212 | olw->setAutoBufferSwap(false);
|
---|
1213 | olw->setFocusProxy(q);
|
---|
1214 | }
|
---|
1215 | else {
|
---|
1216 | delete olw;
|
---|
1217 | olw = 0;
|
---|
1218 | glcx->d_func()->glFormat.setOverlay(false);
|
---|
1219 | }
|
---|
1220 | }
|
---|
1221 | }
|
---|
1222 |
|
---|
1223 | bool QGLWidgetPrivate::renderCxPm(QPixmap* pm)
|
---|
1224 | {
|
---|
1225 | Q_Q(QGLWidget);
|
---|
1226 | if (((XVisualInfo*)glcx->d_func()->vi)->depth != pm->depth())
|
---|
1227 | return false;
|
---|
1228 |
|
---|
1229 | GLXPixmap glPm;
|
---|
1230 | #if defined(GLX_MESA_pixmap_colormap) && defined(QGL_USE_MESA_EXT)
|
---|
1231 | glPm = glXCreateGLXPixmapMESA(X11->display,
|
---|
1232 | (XVisualInfo*)glcx->vi,
|
---|
1233 | (Pixmap)pm->handle(),
|
---|
1234 | qt_gl_choose_cmap(pm->X11->display,
|
---|
1235 | (XVisualInfo*)glcx->vi));
|
---|
1236 | #else
|
---|
1237 | glPm = (quint32)glXCreateGLXPixmap(X11->display,
|
---|
1238 | (XVisualInfo*)glcx->d_func()->vi,
|
---|
1239 | (Pixmap)pm->handle());
|
---|
1240 | #endif
|
---|
1241 |
|
---|
1242 | if (!glXMakeCurrent(X11->display, glPm, (GLXContext)glcx->d_func()->cx)) {
|
---|
1243 | glXDestroyGLXPixmap(X11->display, glPm);
|
---|
1244 | return false;
|
---|
1245 | }
|
---|
1246 |
|
---|
1247 | glDrawBuffer(GL_FRONT);
|
---|
1248 | if (!glcx->initialized())
|
---|
1249 | q->glInit();
|
---|
1250 | q->resizeGL(pm->width(), pm->height());
|
---|
1251 | q->paintGL();
|
---|
1252 | glFlush();
|
---|
1253 | q->makeCurrent();
|
---|
1254 | glXDestroyGLXPixmap(X11->display, glPm);
|
---|
1255 | q->resizeGL(q->width(), q->height());
|
---|
1256 | return true;
|
---|
1257 | }
|
---|
1258 |
|
---|
1259 | /*! \internal
|
---|
1260 | Free up any allocated colormaps. This fn is only called for
|
---|
1261 | top-level widgets.
|
---|
1262 | */
|
---|
1263 | void QGLWidgetPrivate::cleanupColormaps()
|
---|
1264 | {
|
---|
1265 | if (!cmap.handle()) {
|
---|
1266 | return;
|
---|
1267 | } else {
|
---|
1268 | XFreeColormap(X11->display, (Colormap) cmap.handle());
|
---|
1269 | cmap.setHandle(0);
|
---|
1270 | }
|
---|
1271 | }
|
---|
1272 |
|
---|
1273 | void QGLWidget::setMouseTracking(bool enable)
|
---|
1274 | {
|
---|
1275 | Q_D(QGLWidget);
|
---|
1276 | if (d->olw)
|
---|
1277 | d->olw->setMouseTracking(enable);
|
---|
1278 | QWidget::setMouseTracking(enable);
|
---|
1279 | }
|
---|
1280 |
|
---|
1281 |
|
---|
1282 | void QGLWidget::resizeEvent(QResizeEvent *)
|
---|
1283 | {
|
---|
1284 | Q_D(QGLWidget);
|
---|
1285 | if (!isValid())
|
---|
1286 | return;
|
---|
1287 | makeCurrent();
|
---|
1288 | if (!d->glcx->initialized())
|
---|
1289 | glInit();
|
---|
1290 | glXWaitX();
|
---|
1291 | resizeGL(width(), height());
|
---|
1292 | if (d->olw)
|
---|
1293 | d->olw->setGeometry(rect());
|
---|
1294 | }
|
---|
1295 |
|
---|
1296 | const QGLContext* QGLWidget::overlayContext() const
|
---|
1297 | {
|
---|
1298 | Q_D(const QGLWidget);
|
---|
1299 | if (d->olw)
|
---|
1300 | return d->olw->context();
|
---|
1301 | else
|
---|
1302 | return 0;
|
---|
1303 | }
|
---|
1304 |
|
---|
1305 |
|
---|
1306 | void QGLWidget::makeOverlayCurrent()
|
---|
1307 | {
|
---|
1308 | Q_D(QGLWidget);
|
---|
1309 | if (d->olw)
|
---|
1310 | d->olw->makeCurrent();
|
---|
1311 | }
|
---|
1312 |
|
---|
1313 |
|
---|
1314 | void QGLWidget::updateOverlayGL()
|
---|
1315 | {
|
---|
1316 | Q_D(QGLWidget);
|
---|
1317 | if (d->olw)
|
---|
1318 | d->olw->updateGL();
|
---|
1319 | }
|
---|
1320 |
|
---|
1321 | /*!
|
---|
1322 | \internal
|
---|
1323 |
|
---|
1324 | Sets a new QGLContext, \a context, for this QGLWidget, using the
|
---|
1325 | shared context, \a shareContext. If \a deleteOldContext is true,
|
---|
1326 | the original context is deleted; otherwise it is overridden.
|
---|
1327 | */
|
---|
1328 | void QGLWidget::setContext(QGLContext *context,
|
---|
1329 | const QGLContext* shareContext,
|
---|
1330 | bool deleteOldContext)
|
---|
1331 | {
|
---|
1332 | Q_D(QGLWidget);
|
---|
1333 | if (context == 0) {
|
---|
1334 | qWarning("QGLWidget::setContext: Cannot set null context");
|
---|
1335 | return;
|
---|
1336 | }
|
---|
1337 | if (!context->deviceIsPixmap() && context->device() != this) {
|
---|
1338 | qWarning("QGLWidget::setContext: Context must refer to this widget");
|
---|
1339 | return;
|
---|
1340 | }
|
---|
1341 |
|
---|
1342 | if (d->glcx)
|
---|
1343 | d->glcx->doneCurrent();
|
---|
1344 | QGLContext* oldcx = d->glcx;
|
---|
1345 | d->glcx = context;
|
---|
1346 |
|
---|
1347 | if (parentWidget()) {
|
---|
1348 | // force creation of delay-created widgets
|
---|
1349 | parentWidget()->winId();
|
---|
1350 | if (parentWidget()->x11Info().screen() != x11Info().screen())
|
---|
1351 | d_func()->xinfo = parentWidget()->d_func()->xinfo;
|
---|
1352 | }
|
---|
1353 |
|
---|
1354 | // If the application has set WA_TranslucentBackground and not explicitly set
|
---|
1355 | // the alpha buffer size to zero, modify the format so it have an alpha channel
|
---|
1356 | QGLFormat& fmt = d->glcx->d_func()->glFormat;
|
---|
1357 | if (testAttribute(Qt::WA_TranslucentBackground) && fmt.alphaBufferSize() == -1)
|
---|
1358 | fmt.setAlphaBufferSize(1);
|
---|
1359 |
|
---|
1360 | bool createFailed = false;
|
---|
1361 | if (!d->glcx->isValid()) {
|
---|
1362 | if (!d->glcx->create(shareContext ? shareContext : oldcx))
|
---|
1363 | createFailed = true;
|
---|
1364 | }
|
---|
1365 | if (createFailed) {
|
---|
1366 | if (deleteOldContext)
|
---|
1367 | delete oldcx;
|
---|
1368 | return;
|
---|
1369 | }
|
---|
1370 |
|
---|
1371 | if (d->glcx->windowCreated() || d->glcx->deviceIsPixmap()) {
|
---|
1372 | if (deleteOldContext)
|
---|
1373 | delete oldcx;
|
---|
1374 | return;
|
---|
1375 | }
|
---|
1376 |
|
---|
1377 | bool visible = isVisible();
|
---|
1378 | if (visible)
|
---|
1379 | hide();
|
---|
1380 |
|
---|
1381 | XVisualInfo *vi = (XVisualInfo*)d->glcx->d_func()->vi;
|
---|
1382 | XSetWindowAttributes a;
|
---|
1383 |
|
---|
1384 | QColormap colmap = QColormap::instance(vi->screen);
|
---|
1385 | a.colormap = qt_gl_choose_cmap(QX11Info::display(), vi); // find best colormap
|
---|
1386 | a.background_pixel = colmap.pixel(palette().color(backgroundRole()));
|
---|
1387 | a.border_pixel = colmap.pixel(Qt::black);
|
---|
1388 | Window p = RootWindow(X11->display, vi->screen);
|
---|
1389 | if (parentWidget())
|
---|
1390 | p = parentWidget()->winId();
|
---|
1391 |
|
---|
1392 | Window w = XCreateWindow(X11->display, p, x(), y(), width(), height(),
|
---|
1393 | 0, vi->depth, InputOutput, vi->visual,
|
---|
1394 | CWBackPixel|CWBorderPixel|CWColormap, &a);
|
---|
1395 | Window *cmw;
|
---|
1396 | Window *cmwret;
|
---|
1397 | int count;
|
---|
1398 | if (XGetWMColormapWindows(X11->display, window()->winId(),
|
---|
1399 | &cmwret, &count)) {
|
---|
1400 | cmw = new Window[count+1];
|
---|
1401 | memcpy((char *)cmw, (char *)cmwret, sizeof(Window)*count);
|
---|
1402 | XFree((char *)cmwret);
|
---|
1403 | int i;
|
---|
1404 | for (i=0; i<count; i++) {
|
---|
1405 | if (cmw[i] == winId()) { // replace old window
|
---|
1406 | cmw[i] = w;
|
---|
1407 | break;
|
---|
1408 | }
|
---|
1409 | }
|
---|
1410 | if (i >= count) // append new window
|
---|
1411 | cmw[count++] = w;
|
---|
1412 | } else {
|
---|
1413 | count = 1;
|
---|
1414 | cmw = new Window[count];
|
---|
1415 | cmw[0] = w;
|
---|
1416 | }
|
---|
1417 |
|
---|
1418 | #if defined(GLX_MESA_release_buffers) && defined(QGL_USE_MESA_EXT)
|
---|
1419 | if (oldcx && oldcx->windowCreated())
|
---|
1420 | glXReleaseBuffersMESA(X11->display, winId());
|
---|
1421 | #endif
|
---|
1422 | if (deleteOldContext)
|
---|
1423 | delete oldcx;
|
---|
1424 | oldcx = 0;
|
---|
1425 |
|
---|
1426 | if (testAttribute(Qt::WA_WState_Created))
|
---|
1427 | create(w);
|
---|
1428 | else
|
---|
1429 | d->createWinId(w);
|
---|
1430 | XSetWMColormapWindows(X11->display, window()->winId(), cmw, count);
|
---|
1431 | delete [] cmw;
|
---|
1432 |
|
---|
1433 | // calling QWidget::create() will always result in a new paint
|
---|
1434 | // engine being created - get rid of it and replace it with our
|
---|
1435 | // own
|
---|
1436 |
|
---|
1437 | if (visible)
|
---|
1438 | show();
|
---|
1439 | XFlush(X11->display);
|
---|
1440 | d->glcx->setWindowCreated(true);
|
---|
1441 | }
|
---|
1442 |
|
---|
1443 | const QGLColormap & QGLWidget::colormap() const
|
---|
1444 | {
|
---|
1445 | Q_D(const QGLWidget);
|
---|
1446 | return d->cmap;
|
---|
1447 | }
|
---|
1448 |
|
---|
1449 | /*\internal
|
---|
1450 | Store color values in the given colormap.
|
---|
1451 | */
|
---|
1452 | static void qStoreColors(QWidget * tlw, Colormap cmap,
|
---|
1453 | const QGLColormap & cols)
|
---|
1454 | {
|
---|
1455 | Q_UNUSED(tlw);
|
---|
1456 | XColor c;
|
---|
1457 | QRgb color;
|
---|
1458 |
|
---|
1459 | for (int i = 0; i < cols.size(); i++) {
|
---|
1460 | color = cols.entryRgb(i);
|
---|
1461 | c.pixel = i;
|
---|
1462 | c.red = (ushort)((qRed(color) / 255.0) * 65535.0 + 0.5);
|
---|
1463 | c.green = (ushort)((qGreen(color) / 255.0) * 65535.0 + 0.5);
|
---|
1464 | c.blue = (ushort)((qBlue(color) / 255.0) * 65535.0 + 0.5);
|
---|
1465 | c.flags = DoRed | DoGreen | DoBlue;
|
---|
1466 | XStoreColor(X11->display, cmap, &c);
|
---|
1467 | }
|
---|
1468 | }
|
---|
1469 |
|
---|
1470 | /*\internal
|
---|
1471 | Check whether the given visual supports dynamic colormaps or not.
|
---|
1472 | */
|
---|
1473 | static bool qCanAllocColors(QWidget * w)
|
---|
1474 | {
|
---|
1475 | bool validVisual = false;
|
---|
1476 | int numVisuals;
|
---|
1477 | long mask;
|
---|
1478 | XVisualInfo templ;
|
---|
1479 | XVisualInfo * visuals;
|
---|
1480 | VisualID id = XVisualIDFromVisual((Visual *) w->window()->x11Info().visual());
|
---|
1481 |
|
---|
1482 | mask = VisualScreenMask;
|
---|
1483 | templ.screen = w->x11Info().screen();
|
---|
1484 | visuals = XGetVisualInfo(X11->display, mask, &templ, &numVisuals);
|
---|
1485 |
|
---|
1486 | for (int i = 0; i < numVisuals; i++) {
|
---|
1487 | if (visuals[i].visualid == id) {
|
---|
1488 | switch (visuals[i].c_class) {
|
---|
1489 | case TrueColor:
|
---|
1490 | case StaticColor:
|
---|
1491 | case StaticGray:
|
---|
1492 | case XGrayScale:
|
---|
1493 | validVisual = false;
|
---|
1494 | break;
|
---|
1495 | case DirectColor:
|
---|
1496 | case PseudoColor:
|
---|
1497 | validVisual = true;
|
---|
1498 | break;
|
---|
1499 | }
|
---|
1500 | break;
|
---|
1501 | }
|
---|
1502 | }
|
---|
1503 | XFree(visuals);
|
---|
1504 |
|
---|
1505 | if (!validVisual)
|
---|
1506 | return false;
|
---|
1507 | return true;
|
---|
1508 | }
|
---|
1509 |
|
---|
1510 |
|
---|
1511 | void QGLWidget::setColormap(const QGLColormap & c)
|
---|
1512 | {
|
---|
1513 | Q_D(QGLWidget);
|
---|
1514 | QWidget * tlw = window(); // must return a valid widget
|
---|
1515 |
|
---|
1516 | d->cmap = c;
|
---|
1517 | if (!d->cmap.handle())
|
---|
1518 | return;
|
---|
1519 |
|
---|
1520 | if (!qCanAllocColors(this)) {
|
---|
1521 | qWarning("QGLWidget::setColormap: Cannot create a read/write "
|
---|
1522 | "colormap for this visual");
|
---|
1523 | return;
|
---|
1524 | }
|
---|
1525 |
|
---|
1526 | // If the child GL widget is not of the same visual class as the
|
---|
1527 | // toplevel widget we will get in trouble..
|
---|
1528 | Window wid = tlw->winId();
|
---|
1529 | Visual * vis = (Visual *) tlw->x11Info().visual();;
|
---|
1530 | VisualID cvId = XVisualIDFromVisual((Visual *) x11Info().visual());
|
---|
1531 | VisualID tvId = XVisualIDFromVisual((Visual *) tlw->x11Info().visual());
|
---|
1532 | if (cvId != tvId) {
|
---|
1533 | wid = winId();
|
---|
1534 | vis = (Visual *) x11Info().visual();
|
---|
1535 | }
|
---|
1536 |
|
---|
1537 | if (!d->cmap.handle()) // allocate a cmap if necessary
|
---|
1538 | d->cmap.setHandle(XCreateColormap(X11->display, wid, vis, AllocAll));
|
---|
1539 |
|
---|
1540 | qStoreColors(this, (Colormap) d->cmap.handle(), c);
|
---|
1541 | XSetWindowColormap(X11->display, wid, (Colormap) d->cmap.handle());
|
---|
1542 |
|
---|
1543 | // tell the wm that this window has a special colormap
|
---|
1544 | Window * cmw;
|
---|
1545 | Window * cmwret;
|
---|
1546 | int count;
|
---|
1547 | if (XGetWMColormapWindows(X11->display, tlw->winId(), &cmwret, &count))
|
---|
1548 | {
|
---|
1549 | cmw = new Window[count+1];
|
---|
1550 | memcpy((char *) cmw, (char *) cmwret, sizeof(Window) * count);
|
---|
1551 | XFree((char *) cmwret);
|
---|
1552 | int i;
|
---|
1553 | for (i = 0; i < count; i++) {
|
---|
1554 | if (cmw[i] == winId()) {
|
---|
1555 | break;
|
---|
1556 | }
|
---|
1557 | }
|
---|
1558 | if (i >= count) // append new window only if not in the list
|
---|
1559 | cmw[count++] = winId();
|
---|
1560 | } else {
|
---|
1561 | count = 1;
|
---|
1562 | cmw = new Window[count];
|
---|
1563 | cmw[0] = winId();
|
---|
1564 | }
|
---|
1565 | XSetWMColormapWindows(X11->display, tlw->winId(), cmw, count);
|
---|
1566 | delete [] cmw;
|
---|
1567 | }
|
---|
1568 |
|
---|
1569 | void QGLExtensions::init()
|
---|
1570 | {
|
---|
1571 | static bool init_done = false;
|
---|
1572 |
|
---|
1573 | if (init_done)
|
---|
1574 | return;
|
---|
1575 | init_done = true;
|
---|
1576 |
|
---|
1577 | QGLWidget dmy;
|
---|
1578 | dmy.makeCurrent();
|
---|
1579 | init_extensions();
|
---|
1580 |
|
---|
1581 | // nvidia 9x.xx unix drivers contain a bug which requires us to call glFinish before releasing an fbo
|
---|
1582 | // to avoid painting artifacts
|
---|
1583 | const QByteArray versionString(reinterpret_cast<const char*>(glGetString(GL_VERSION)));
|
---|
1584 | const int pos = versionString.indexOf("NVIDIA");
|
---|
1585 | if (pos >= 0) {
|
---|
1586 | const float nvidiaDriverVersion = versionString.mid(pos + strlen("NVIDIA")).toFloat();
|
---|
1587 | nvidiaFboNeedsFinish = nvidiaDriverVersion >= 90.0 && nvidiaDriverVersion < 100.0;
|
---|
1588 | }
|
---|
1589 | }
|
---|
1590 |
|
---|
1591 | // Solaris defines glXBindTexImageEXT as part of the GL library
|
---|
1592 | #if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
|
---|
1593 | typedef void (*qt_glXBindTexImageEXT)(Display*, GLXDrawable, int, const int*);
|
---|
1594 | typedef void (*qt_glXReleaseTexImageEXT)(Display*, GLXDrawable, int);
|
---|
1595 | static qt_glXBindTexImageEXT glXBindTexImageEXT = 0;
|
---|
1596 | static qt_glXReleaseTexImageEXT glXReleaseTexImageEXT = 0;
|
---|
1597 |
|
---|
1598 | static bool qt_resolveTextureFromPixmap(QPaintDevice *paintDevice)
|
---|
1599 | {
|
---|
1600 | static bool resolvedTextureFromPixmap = false;
|
---|
1601 |
|
---|
1602 | if (!resolvedTextureFromPixmap) {
|
---|
1603 | resolvedTextureFromPixmap = true;
|
---|
1604 |
|
---|
1605 | // Check to see if we have NPOT texture support
|
---|
1606 | if ( !(QGLExtensions::glExtensions & QGLExtensions::NPOTTextures) &&
|
---|
1607 | !(QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_2_0))
|
---|
1608 | {
|
---|
1609 | return false; // Can't use TFP without NPOT
|
---|
1610 | }
|
---|
1611 | const QX11Info *xinfo = qt_x11Info(paintDevice);
|
---|
1612 | QGLExtensionMatcher extensions(glXQueryExtensionsString(xinfo->display(), xinfo->screen()));
|
---|
1613 | if (extensions.match("GLX_EXT_texture_from_pixmap")) {
|
---|
1614 | glXBindTexImageEXT = (qt_glXBindTexImageEXT) qglx_getProcAddress("glXBindTexImageEXT");
|
---|
1615 | glXReleaseTexImageEXT = (qt_glXReleaseTexImageEXT) qglx_getProcAddress("glXReleaseTexImageEXT");
|
---|
1616 | }
|
---|
1617 | }
|
---|
1618 |
|
---|
1619 | return glXBindTexImageEXT && glXReleaseTexImageEXT;
|
---|
1620 | }
|
---|
1621 | #endif //defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
|
---|
1622 |
|
---|
1623 |
|
---|
1624 | QGLTexture *QGLContextPrivate::bindTextureFromNativePixmap(QPixmapData *pmd, const qint64 key,
|
---|
1625 | QGLContext::BindOptions options)
|
---|
1626 | {
|
---|
1627 | #if !defined(GLX_VERSION_1_3) || defined(Q_OS_HPUX)
|
---|
1628 | return 0;
|
---|
1629 | #else
|
---|
1630 | Q_Q(QGLContext);
|
---|
1631 |
|
---|
1632 | Q_ASSERT(pmd->classId() == QPixmapData::X11Class);
|
---|
1633 |
|
---|
1634 | if (!qt_resolveTextureFromPixmap(paintDevice))
|
---|
1635 | return 0;
|
---|
1636 |
|
---|
1637 | QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pmd);
|
---|
1638 | const QX11Info &x11Info = pixmapData->xinfo;
|
---|
1639 |
|
---|
1640 | // Store the configs (Can be static because configs aren't dependent on current context)
|
---|
1641 | static GLXFBConfig glxRGBPixmapConfig = 0;
|
---|
1642 | static bool RGBConfigInverted = false;
|
---|
1643 | static GLXFBConfig glxRGBAPixmapConfig = 0;
|
---|
1644 | static bool RGBAConfigInverted = false;
|
---|
1645 |
|
---|
1646 | bool hasAlpha = pixmapData->hasAlphaChannel();
|
---|
1647 |
|
---|
1648 | // Check to see if we need a config
|
---|
1649 | if ( (hasAlpha && !glxRGBAPixmapConfig) || (!hasAlpha && !glxRGBPixmapConfig) ) {
|
---|
1650 | GLXFBConfig *configList = 0;
|
---|
1651 | int configCount = 0;
|
---|
1652 |
|
---|
1653 | int configAttribs[] = {
|
---|
1654 | hasAlpha ? GLX_BIND_TO_TEXTURE_RGBA_EXT : GLX_BIND_TO_TEXTURE_RGB_EXT, True,
|
---|
1655 | GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
|
---|
1656 | GLX_BIND_TO_TEXTURE_TARGETS_EXT, GLX_TEXTURE_2D_BIT_EXT,
|
---|
1657 | // QGLContext::bindTexture() can't return an inverted texture, but QPainter::drawPixmap() can:
|
---|
1658 | GLX_Y_INVERTED_EXT, options & QGLContext::CanFlipNativePixmapBindOption ? GLX_DONT_CARE : False,
|
---|
1659 | XNone
|
---|
1660 | };
|
---|
1661 | configList = glXChooseFBConfig(x11Info.display(), x11Info.screen(), configAttribs, &configCount);
|
---|
1662 | if (!configList)
|
---|
1663 | return 0;
|
---|
1664 |
|
---|
1665 | int yInv;
|
---|
1666 | glXGetFBConfigAttrib(x11Info.display(), configList[0], GLX_Y_INVERTED_EXT, &yInv);
|
---|
1667 |
|
---|
1668 | if (hasAlpha) {
|
---|
1669 | glxRGBAPixmapConfig = configList[0];
|
---|
1670 | RGBAConfigInverted = yInv;
|
---|
1671 | }
|
---|
1672 | else {
|
---|
1673 | glxRGBPixmapConfig = configList[0];
|
---|
1674 | RGBConfigInverted = yInv;
|
---|
1675 | }
|
---|
1676 |
|
---|
1677 | XFree(configList);
|
---|
1678 | }
|
---|
1679 |
|
---|
1680 | // Check to see if the surface is still valid
|
---|
1681 | if (pixmapData->gl_surface &&
|
---|
1682 | hasAlpha != (pixmapData->flags & QX11PixmapData::GlSurfaceCreatedWithAlpha))
|
---|
1683 | {
|
---|
1684 | // Surface is invalid!
|
---|
1685 | destroyGlSurfaceForPixmap(pixmapData);
|
---|
1686 | }
|
---|
1687 |
|
---|
1688 | // Check to see if we need a surface
|
---|
1689 | if (!pixmapData->gl_surface) {
|
---|
1690 | GLXPixmap glxPixmap;
|
---|
1691 | int pixmapAttribs[] = {
|
---|
1692 | GLX_TEXTURE_FORMAT_EXT, hasAlpha ? GLX_TEXTURE_FORMAT_RGBA_EXT : GLX_TEXTURE_FORMAT_RGB_EXT,
|
---|
1693 | GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
|
---|
1694 | GLX_MIPMAP_TEXTURE_EXT, False, // Maybe needs to be don't care
|
---|
1695 | XNone
|
---|
1696 | };
|
---|
1697 |
|
---|
1698 | // Wrap the X Pixmap into a GLXPixmap:
|
---|
1699 | glxPixmap = glXCreatePixmap(x11Info.display(),
|
---|
1700 | hasAlpha ? glxRGBAPixmapConfig : glxRGBPixmapConfig,
|
---|
1701 | pixmapData->handle(), pixmapAttribs);
|
---|
1702 |
|
---|
1703 | if (!glxPixmap)
|
---|
1704 | return 0;
|
---|
1705 |
|
---|
1706 | pixmapData->gl_surface = (Qt::HANDLE)glxPixmap;
|
---|
1707 |
|
---|
1708 | // Make sure the cleanup hook gets called so we can delete the glx pixmap
|
---|
1709 | QImagePixmapCleanupHooks::enableCleanupHooks(pixmapData);
|
---|
1710 | }
|
---|
1711 |
|
---|
1712 | GLuint textureId;
|
---|
1713 | glGenTextures(1, &textureId);
|
---|
1714 | glBindTexture(GL_TEXTURE_2D, textureId);
|
---|
1715 | glXBindTexImageEXT(x11Info.display(), (GLXPixmap)pixmapData->gl_surface, GLX_FRONT_LEFT_EXT, 0);
|
---|
1716 |
|
---|
1717 | glBindTexture(GL_TEXTURE_2D, textureId);
|
---|
1718 |
|
---|
1719 | if (!((hasAlpha && RGBAConfigInverted) || (!hasAlpha && RGBConfigInverted)))
|
---|
1720 | options &= ~QGLContext::InvertedYBindOption;
|
---|
1721 |
|
---|
1722 | QGLTexture *texture = new QGLTexture(q, textureId, GL_TEXTURE_2D, options);
|
---|
1723 | if (texture->options & QGLContext::InvertedYBindOption)
|
---|
1724 | pixmapData->flags |= QX11PixmapData::InvertedWhenBoundToTexture;
|
---|
1725 |
|
---|
1726 | // We assume the cost of bound pixmaps is zero
|
---|
1727 | QGLTextureCache::instance()->insert(q, key, texture, 0);
|
---|
1728 |
|
---|
1729 | return texture;
|
---|
1730 | #endif //!defined(GLX_VERSION_1_3) || defined(Q_OS_HPUX)
|
---|
1731 | }
|
---|
1732 |
|
---|
1733 |
|
---|
1734 | void QGLContextPrivate::destroyGlSurfaceForPixmap(QPixmapData* pmd)
|
---|
1735 | {
|
---|
1736 | #if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
|
---|
1737 | Q_ASSERT(pmd->classId() == QPixmapData::X11Class);
|
---|
1738 | QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pmd);
|
---|
1739 | if (pixmapData->gl_surface) {
|
---|
1740 | glXDestroyPixmap(QX11Info::display(), (GLXPixmap)pixmapData->gl_surface);
|
---|
1741 | pixmapData->gl_surface = 0;
|
---|
1742 | }
|
---|
1743 | #endif
|
---|
1744 | }
|
---|
1745 |
|
---|
1746 | void QGLContextPrivate::unbindPixmapFromTexture(QPixmapData* pmd)
|
---|
1747 | {
|
---|
1748 | #if defined(GLX_VERSION_1_3) && !defined(Q_OS_HPUX)
|
---|
1749 | Q_ASSERT(pmd->classId() == QPixmapData::X11Class);
|
---|
1750 | Q_ASSERT(QGLContext::currentContext());
|
---|
1751 | QX11PixmapData *pixmapData = static_cast<QX11PixmapData*>(pmd);
|
---|
1752 | if (pixmapData->gl_surface)
|
---|
1753 | glXReleaseTexImageEXT(QX11Info::display(), (GLXPixmap)pixmapData->gl_surface, GLX_FRONT_LEFT_EXT);
|
---|
1754 | #endif
|
---|
1755 | }
|
---|
1756 |
|
---|
1757 | QT_END_NAMESPACE
|
---|