mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
815 lines
28 KiB
C++
815 lines
28 KiB
C++
/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Initial Developer of the Original Code is Mozilla Foundation.
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* Portions created by the Initial Developer are Copyright (C) 2010
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Matt Woodrow <mwoodrow@mozilla.com>
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* Bas Schouten <bschouten@mozilla.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifdef MOZ_WIDGET_GTK2
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#include <gdk/gdk.h>
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#include <gdk/gdkx.h>
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#define GET_NATIVE_WINDOW(aWidget) GDK_WINDOW_XID((GdkWindow *) aWidget->GetNativeData(NS_NATIVE_WINDOW))
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#elif defined(MOZ_WIDGET_QT)
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#include <QWidget>
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#include <QX11Info>
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#define GET_NATIVE_WINDOW(aWidget) static_cast<QWidget*>(aWidget->GetNativeData(NS_NATIVE_SHELLWIDGET))->handle()
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#endif
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#include <X11/Xlib.h>
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#include <X11/Xutil.h>
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#include "mozilla/X11Util.h"
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#include "prenv.h"
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#include "GLContextProvider.h"
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#include "nsDebug.h"
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#include "nsIWidget.h"
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#include "GLXLibrary.h"
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#include "gfxXlibSurface.h"
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#include "gfxContext.h"
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#include "gfxImageSurface.h"
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#include "gfxPlatform.h"
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#include "GLContext.h"
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#include "gfxCrashReporterUtils.h"
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namespace mozilla {
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namespace gl {
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static PRBool gIsATI = PR_FALSE;
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static PRBool gIsChromium = PR_FALSE;
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static int gGLXMajorVersion = 0, gGLXMinorVersion = 0;
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// Check that we have at least version aMajor.aMinor .
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static inline bool
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GLXVersionCheck(int aMajor, int aMinor)
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{
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return aMajor < gGLXMajorVersion ||
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(aMajor == gGLXMajorVersion && aMinor <= gGLXMinorVersion);
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}
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static inline bool
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HasExtension(const char* aExtensions, const char* aRequiredExtension)
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|
{
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return GLContext::ListHasExtension(
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reinterpret_cast<const GLubyte*>(aExtensions), aRequiredExtension);
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}
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PRBool
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GLXLibrary::EnsureInitialized()
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{
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if (mInitialized) {
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return PR_TRUE;
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}
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// Don't repeatedly try to initialize.
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if (mTriedInitializing) {
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return PR_FALSE;
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}
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mTriedInitializing = PR_TRUE;
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if (!mOGLLibrary) {
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// see e.g. bug 608526: it is intrinsically interesting to know whether we have dynamically linked to libGL.so.1
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// because at least the NVIDIA implementation requires an executable stack, which causes mprotect calls,
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// which trigger glibc bug http://sourceware.org/bugzilla/show_bug.cgi?id=12225
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const char *libGLfilename = "libGL.so.1";
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ScopedGfxFeatureReporter reporter(libGLfilename);
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mOGLLibrary = PR_LoadLibrary(libGLfilename);
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if (!mOGLLibrary) {
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NS_WARNING("Couldn't load OpenGL shared library.");
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return PR_FALSE;
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}
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reporter.SetSuccessful();
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}
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LibrarySymbolLoader::SymLoadStruct symbols[] = {
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/* functions that were in GLX 1.0 */
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{ (PRFuncPtr*) &xDestroyContext, { "glXDestroyContext", NULL } },
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{ (PRFuncPtr*) &xMakeCurrent, { "glXMakeCurrent", NULL } },
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{ (PRFuncPtr*) &xSwapBuffers, { "glXSwapBuffers", NULL } },
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{ (PRFuncPtr*) &xQueryVersion, { "glXQueryVersion", NULL } },
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{ (PRFuncPtr*) &xGetCurrentContext, { "glXGetCurrentContext", NULL } },
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/* functions introduced in GLX 1.1 */
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{ (PRFuncPtr*) &xQueryExtensionsString, { "glXQueryExtensionsString", NULL } },
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{ (PRFuncPtr*) &xGetClientString, { "glXGetClientString", NULL } },
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{ (PRFuncPtr*) &xQueryServerString, { "glXQueryServerString", NULL } },
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{ NULL, { NULL } }
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};
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LibrarySymbolLoader::SymLoadStruct symbols13[] = {
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/* functions introduced in GLX 1.3 */
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{ (PRFuncPtr*) &xChooseFBConfig, { "glXChooseFBConfig", NULL } },
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{ (PRFuncPtr*) &xGetFBConfigAttrib, { "glXGetFBConfigAttrib", NULL } },
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// WARNING: xGetFBConfigs not set in symbols13_ext
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{ (PRFuncPtr*) &xGetFBConfigs, { "glXGetFBConfigs", NULL } },
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{ (PRFuncPtr*) &xGetVisualFromFBConfig, { "glXGetVisualFromFBConfig", NULL } },
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// WARNING: symbols13_ext sets xCreateGLXPixmapWithConfig instead
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{ (PRFuncPtr*) &xCreatePixmap, { "glXCreatePixmap", NULL } },
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{ (PRFuncPtr*) &xDestroyPixmap, { "glXDestroyPixmap", NULL } },
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{ (PRFuncPtr*) &xCreateNewContext, { "glXCreateNewContext", NULL } },
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{ NULL, { NULL } }
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};
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LibrarySymbolLoader::SymLoadStruct symbols13_ext[] = {
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/* extension equivalents for functions introduced in GLX 1.3 */
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// GLX_SGIX_fbconfig extension
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{ (PRFuncPtr*) &xChooseFBConfig, { "glXChooseFBConfigSGIX", NULL } },
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{ (PRFuncPtr*) &xGetFBConfigAttrib, { "glXGetFBConfigAttribSGIX", NULL } },
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// WARNING: no xGetFBConfigs equivalent in extensions
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{ (PRFuncPtr*) &xGetVisualFromFBConfig, { "glXGetVisualFromFBConfig", NULL } },
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// WARNING: different from symbols13:
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{ (PRFuncPtr*) &xCreateGLXPixmapWithConfig, { "glXCreateGLXPixmapWithConfigSGIX", NULL } },
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{ (PRFuncPtr*) &xDestroyPixmap, { "glXDestroyGLXPixmap", NULL } }, // not from ext
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{ (PRFuncPtr*) &xCreateNewContext, { "glXCreateContextWithConfigSGIX", NULL } },
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{ NULL, { NULL } }
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};
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LibrarySymbolLoader::SymLoadStruct symbols14[] = {
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/* functions introduced in GLX 1.4 */
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{ (PRFuncPtr*) &xGetProcAddress, { "glXGetProcAddress", NULL } },
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{ NULL, { NULL } }
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};
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LibrarySymbolLoader::SymLoadStruct symbols14_ext[] = {
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/* extension equivalents for functions introduced in GLX 1.4 */
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// GLX_ARB_get_proc_address extension
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{ (PRFuncPtr*) &xGetProcAddress, { "glXGetProcAddressARB", NULL } },
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{ NULL, { NULL } }
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};
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if (!LibrarySymbolLoader::LoadSymbols(mOGLLibrary, &symbols[0])) {
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NS_WARNING("Couldn't find required entry point in OpenGL shared library");
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return PR_FALSE;
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}
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Display *display = DefaultXDisplay();
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PRBool ignoreBlacklist = PR_GetEnv("MOZ_GLX_IGNORE_BLACKLIST") != nsnull;
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if (!ignoreBlacklist) {
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// ATI's libGL (at least the one provided with 11.2 drivers) segfaults
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// when querying server info if the server does not have the
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// ATIFGLEXTENSION extension.
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const char *clientVendor = xGetClientString(display, GLX_VENDOR);
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if (clientVendor && strcmp(clientVendor, "ATI") == 0) {
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printf("[GLX] The ATI proprietary libGL.so.1 is currently "
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"blacklisted to avoid crashes that happen in some "
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"situations. If you would like to bypass this, set the "
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"MOZ_GLX_IGNORE_BLACKLIST environment variable.\n");
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return PR_FALSE;
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}
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}
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int screen = DefaultScreen(display);
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const char *serverVendor;
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const char *serverVersionStr;
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const char *extensionsStr;
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// This scope is covered by a ScopedXErrorHandler to catch X errors in GLX
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// calls. See bug 632867 comment 3: Mesa versions up to 7.10 cause a
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// BadLength error during the first GLX call that communicates with the
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// server when the server GLX version < 1.3.
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{
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ScopedXErrorHandler xErrorHandler;
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if (!xQueryVersion(display, &gGLXMajorVersion, &gGLXMinorVersion)) {
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gGLXMajorVersion = 0;
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gGLXMinorVersion = 0;
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return PR_FALSE;
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}
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serverVendor = xQueryServerString(display, screen, GLX_VENDOR);
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serverVersionStr = xQueryServerString(display, screen, GLX_VERSION);
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PRBool IsDriverBlacklisted = !serverVendor || // it's been reported that a VNC X server was returning serverVendor=null
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!serverVersionStr ||
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strcmp(serverVendor, "NVIDIA Corporation");
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if (IsDriverBlacklisted && !ignoreBlacklist)
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{
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printf("[GLX] your GL driver is currently blocked. If you would like to bypass this, "
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"define the MOZ_GLX_IGNORE_BLACKLIST environment variable.\n");
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return PR_FALSE;
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}
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if (!GLXVersionCheck(1, 1))
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// Not possible to query for extensions.
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return PR_FALSE;
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extensionsStr = xQueryExtensionsString(display, screen);
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if (xErrorHandler.GetError())
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return PR_FALSE;
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}
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LibrarySymbolLoader::SymLoadStruct *sym13;
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if (!GLXVersionCheck(1, 3)) {
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// Even if we don't have 1.3, we might have equivalent extensions
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// (as on the Intel X server).
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if (!HasExtension(extensionsStr, "GLX_SGIX_fbconfig")) {
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return PR_FALSE;
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}
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sym13 = symbols13_ext;
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} else {
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sym13 = symbols13;
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}
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if (!LibrarySymbolLoader::LoadSymbols(mOGLLibrary, sym13)) {
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NS_WARNING("Couldn't find required entry point in OpenGL shared library");
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return PR_FALSE;
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}
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LibrarySymbolLoader::SymLoadStruct *sym14;
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if (!GLXVersionCheck(1, 4)) {
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// Even if we don't have 1.4, we might have equivalent extensions
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// (as on the Intel X server).
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if (!HasExtension(extensionsStr, "GLX_ARB_get_proc_address")) {
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return PR_FALSE;
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}
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sym14 = symbols14_ext;
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} else {
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sym14 = symbols14;
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}
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if (!LibrarySymbolLoader::LoadSymbols(mOGLLibrary, sym14)) {
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NS_WARNING("Couldn't find required entry point in OpenGL shared library");
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return PR_FALSE;
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}
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gIsATI = serverVendor && DoesVendorStringMatch(serverVendor, "ATI");
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gIsChromium = (serverVendor &&
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DoesVendorStringMatch(serverVendor, "Chromium")) ||
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(serverVersionStr &&
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DoesVendorStringMatch(serverVersionStr, "Chromium"));
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mInitialized = PR_TRUE;
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return PR_TRUE;
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}
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GLXLibrary sGLXLibrary;
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class GLContextGLX : public GLContext
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{
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public:
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static already_AddRefed<GLContextGLX>
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CreateGLContext(const ContextFormat& format,
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Display *display,
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GLXDrawable drawable,
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GLXFBConfig cfg,
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XVisualInfo *vinfo,
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GLContextGLX *shareContext,
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PRBool deleteDrawable,
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gfxXlibSurface *pixmap = nsnull)
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{
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int db = 0, err;
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err = sGLXLibrary.xGetFBConfigAttrib(display, cfg,
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GLX_DOUBLEBUFFER, &db);
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if (GLX_BAD_ATTRIBUTE != err) {
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#ifdef DEBUG
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printf("[GLX] FBConfig is %sdouble-buffered\n", db ? "" : "not ");
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#endif
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}
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GLXContext context;
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nsRefPtr<GLContextGLX> glContext;
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bool error;
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ScopedXErrorHandler xErrorHandler;
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TRY_AGAIN_NO_SHARING:
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error = false;
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context = sGLXLibrary.xCreateNewContext(display,
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cfg,
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GLX_RGBA_TYPE,
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shareContext ? shareContext->mContext : NULL,
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True);
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if (context) {
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glContext = new GLContextGLX(format,
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shareContext,
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display,
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drawable,
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context,
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deleteDrawable,
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db,
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pixmap);
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if (!glContext->Init())
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error = true;
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} else {
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error = true;
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}
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error |= xErrorHandler.SyncAndGetError(display);
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if (error) {
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if (shareContext) {
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shareContext = nsnull;
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goto TRY_AGAIN_NO_SHARING;
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}
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NS_WARNING("Failed to create GLXContext!");
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glContext = nsnull; // note: this must be done while the graceful X error handler is set,
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// because glxMakeCurrent can give a GLXBadDrawable error
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}
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return glContext.forget();
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}
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~GLContextGLX()
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|
{
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MarkDestroyed();
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|
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sGLXLibrary.xDestroyContext(mDisplay, mContext);
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|
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if (mDeleteDrawable) {
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sGLXLibrary.xDestroyPixmap(mDisplay, mDrawable);
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}
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}
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GLContextType GetContextType() {
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return ContextTypeGLX;
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}
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PRBool Init()
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|
{
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MakeCurrent();
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SetupLookupFunction();
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if (!InitWithPrefix("gl", PR_TRUE)) {
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return PR_FALSE;
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}
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|
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return IsExtensionSupported("GL_EXT_framebuffer_object");
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}
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PRBool MakeCurrentImpl(PRBool aForce = PR_FALSE)
|
|
{
|
|
PRBool succeeded = PR_TRUE;
|
|
|
|
// With the ATI FGLRX driver, glxMakeCurrent is very slow even when the context doesn't change.
|
|
// (This is not the case with other drivers such as NVIDIA).
|
|
// So avoid calling it more than necessary. Since GLX documentation says that:
|
|
// "glXGetCurrentContext returns client-side information.
|
|
// It does not make a round trip to the server."
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|
// I assume that it's not worth using our own TLS slot here.
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if (aForce || sGLXLibrary.xGetCurrentContext() != mContext) {
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succeeded = sGLXLibrary.xMakeCurrent(mDisplay, mDrawable, mContext);
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NS_ASSERTION(succeeded, "Failed to make GL context current!");
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|
}
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return succeeded;
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}
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PRBool SetupLookupFunction()
|
|
{
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|
mLookupFunc = (PlatformLookupFunction)sGLXLibrary.xGetProcAddress;
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return PR_TRUE;
|
|
}
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|
|
void *GetNativeData(NativeDataType aType)
|
|
{
|
|
switch(aType) {
|
|
case NativeGLContext:
|
|
return mContext;
|
|
|
|
case NativeThebesSurface:
|
|
return mPixmap;
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|
|
|
default:
|
|
return nsnull;
|
|
}
|
|
}
|
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|
|
PRBool IsDoubleBuffered()
|
|
{
|
|
return mDoubleBuffered;
|
|
}
|
|
|
|
PRBool SwapBuffers()
|
|
{
|
|
if (!mDoubleBuffered)
|
|
return PR_FALSE;
|
|
sGLXLibrary.xSwapBuffers(mDisplay, mDrawable);
|
|
return PR_TRUE;
|
|
}
|
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|
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private:
|
|
friend class GLContextProviderGLX;
|
|
|
|
GLContextGLX(const ContextFormat& aFormat,
|
|
GLContext *aShareContext,
|
|
Display *aDisplay,
|
|
GLXDrawable aDrawable,
|
|
GLXContext aContext,
|
|
PRBool aDeleteDrawable,
|
|
PRBool aDoubleBuffered,
|
|
gfxXlibSurface *aPixmap)
|
|
: GLContext(aFormat, aDeleteDrawable ? PR_TRUE : PR_FALSE, aShareContext),
|
|
mContext(aContext),
|
|
mDisplay(aDisplay),
|
|
mDrawable(aDrawable),
|
|
mDeleteDrawable(aDeleteDrawable),
|
|
mDoubleBuffered(aDoubleBuffered),
|
|
mPixmap(aPixmap)
|
|
{ }
|
|
|
|
GLXContext mContext;
|
|
Display *mDisplay;
|
|
GLXDrawable mDrawable;
|
|
PRPackedBool mDeleteDrawable;
|
|
PRPackedBool mDoubleBuffered;
|
|
|
|
nsRefPtr<gfxXlibSurface> mPixmap;
|
|
};
|
|
|
|
static GLContextGLX *
|
|
GetGlobalContextGLX()
|
|
{
|
|
return static_cast<GLContextGLX*>(GLContextProviderGLX::GetGlobalContext());
|
|
}
|
|
|
|
static PRBool
|
|
AreCompatibleVisuals(XVisualInfo *one, XVisualInfo *two)
|
|
{
|
|
if (one->c_class != two->c_class) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (one->depth != two->depth) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (one->red_mask != two->red_mask ||
|
|
one->green_mask != two->green_mask ||
|
|
one->blue_mask != two->blue_mask) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
if (one->bits_per_rgb != two->bits_per_rgb) {
|
|
return PR_FALSE;
|
|
}
|
|
|
|
return PR_TRUE;
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderGLX::CreateForWindow(nsIWidget *aWidget)
|
|
{
|
|
if (!sGLXLibrary.EnsureInitialized()) {
|
|
return nsnull;
|
|
}
|
|
|
|
// Currently, we take whatever Visual the window already has, and
|
|
// try to create an fbconfig for that visual. This isn't
|
|
// necessarily what we want in the long run; an fbconfig may not
|
|
// be available for the existing visual, or if it is, the GL
|
|
// performance might be suboptimal. But using the existing visual
|
|
// is a relatively safe intermediate step.
|
|
|
|
Display *display = (Display*)aWidget->GetNativeData(NS_NATIVE_DISPLAY);
|
|
int xscreen = DefaultScreen(display);
|
|
Window window = GET_NATIVE_WINDOW(aWidget);
|
|
|
|
int numConfigs;
|
|
ScopedXFree<GLXFBConfig> cfgs;
|
|
if (gIsATI || !GLXVersionCheck(1, 3)) {
|
|
const int attribs[] = {
|
|
GLX_DOUBLEBUFFER, False,
|
|
0
|
|
};
|
|
cfgs = sGLXLibrary.xChooseFBConfig(display,
|
|
xscreen,
|
|
attribs,
|
|
&numConfigs);
|
|
} else {
|
|
cfgs = sGLXLibrary.xGetFBConfigs(display,
|
|
xscreen,
|
|
&numConfigs);
|
|
}
|
|
|
|
if (!cfgs) {
|
|
NS_WARNING("[GLX] glXGetFBConfigs() failed");
|
|
return nsnull;
|
|
}
|
|
NS_ASSERTION(numConfigs > 0, "No FBConfigs found!");
|
|
|
|
// XXX the visual ID is almost certainly the GLX_FBCONFIG_ID, so
|
|
// we could probably do this first and replace the glXGetFBConfigs
|
|
// with glXChooseConfigs. Docs are sparklingly clear as always.
|
|
XWindowAttributes widgetAttrs;
|
|
if (!XGetWindowAttributes(display, window, &widgetAttrs)) {
|
|
NS_WARNING("[GLX] XGetWindowAttributes() failed");
|
|
return nsnull;
|
|
}
|
|
const VisualID widgetVisualID = XVisualIDFromVisual(widgetAttrs.visual);
|
|
#ifdef DEBUG
|
|
printf("[GLX] widget has VisualID 0x%lx\n", widgetVisualID);
|
|
#endif
|
|
|
|
ScopedXFree<XVisualInfo> vi;
|
|
if (gIsATI) {
|
|
XVisualInfo vinfo_template;
|
|
int nvisuals;
|
|
vinfo_template.visual = widgetAttrs.visual;
|
|
vinfo_template.visualid = XVisualIDFromVisual(vinfo_template.visual);
|
|
vinfo_template.depth = widgetAttrs.depth;
|
|
vinfo_template.screen = xscreen;
|
|
vi = XGetVisualInfo(display, VisualIDMask|VisualDepthMask|VisualScreenMask,
|
|
&vinfo_template, &nvisuals);
|
|
NS_ASSERTION(vi && nvisuals == 1, "Could not locate unique matching XVisualInfo for Visual");
|
|
}
|
|
|
|
int matchIndex = -1;
|
|
ScopedXFree<XVisualInfo> vinfo;
|
|
|
|
for (int i = 0; i < numConfigs; i++) {
|
|
vinfo = sGLXLibrary.xGetVisualFromFBConfig(display, cfgs[i]);
|
|
if (!vinfo) {
|
|
continue;
|
|
}
|
|
if (gIsATI) {
|
|
if (AreCompatibleVisuals(vi, vinfo)) {
|
|
matchIndex = i;
|
|
break;
|
|
}
|
|
} else {
|
|
if (widgetVisualID == vinfo->visualid) {
|
|
matchIndex = i;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (matchIndex == -1) {
|
|
NS_WARNING("[GLX] Couldn't find a FBConfig matching widget visual");
|
|
return nsnull;
|
|
}
|
|
|
|
GLContextGLX *shareContext = GetGlobalContextGLX();
|
|
|
|
nsRefPtr<GLContextGLX> glContext = GLContextGLX::CreateGLContext(ContextFormat(ContextFormat::BasicRGB24),
|
|
display,
|
|
window,
|
|
cfgs[matchIndex],
|
|
vinfo,
|
|
shareContext,
|
|
PR_FALSE);
|
|
return glContext.forget();
|
|
}
|
|
|
|
static already_AddRefed<GLContextGLX>
|
|
CreateOffscreenPixmapContext(const gfxIntSize& aSize,
|
|
const ContextFormat& aFormat,
|
|
PRBool aShare)
|
|
{
|
|
if (!sGLXLibrary.EnsureInitialized()) {
|
|
return nsnull;
|
|
}
|
|
|
|
Display *display = DefaultXDisplay();
|
|
int xscreen = DefaultScreen(display);
|
|
|
|
int attribs[] = {
|
|
GLX_DOUBLEBUFFER, False,
|
|
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
|
|
GLX_X_RENDERABLE, True,
|
|
GLX_RED_SIZE, 1,
|
|
GLX_GREEN_SIZE, 1,
|
|
GLX_BLUE_SIZE, 1,
|
|
GLX_ALPHA_SIZE, 0,
|
|
GLX_DEPTH_SIZE, 0,
|
|
0
|
|
};
|
|
int numConfigs = 0;
|
|
|
|
ScopedXFree<GLXFBConfig> cfgs;
|
|
cfgs = sGLXLibrary.xChooseFBConfig(display,
|
|
xscreen,
|
|
attribs,
|
|
&numConfigs);
|
|
if (!cfgs) {
|
|
return nsnull;
|
|
}
|
|
|
|
NS_ASSERTION(numConfigs > 0,
|
|
"glXChooseFBConfig() failed to match our requested format and violated its spec (!)");
|
|
|
|
ScopedXFree<XVisualInfo> vinfo;
|
|
int chosenIndex = 0;
|
|
|
|
for (int i = 0; i < numConfigs; ++i) {
|
|
int dtype, visid;
|
|
|
|
if (sGLXLibrary.xGetFBConfigAttrib(display, cfgs[i], GLX_DRAWABLE_TYPE, &dtype) != Success
|
|
|| !(dtype & GLX_PIXMAP_BIT))
|
|
{
|
|
continue;
|
|
}
|
|
if (sGLXLibrary.xGetFBConfigAttrib(display, cfgs[i], GLX_VISUAL_ID, &visid) != Success
|
|
|| visid == 0)
|
|
{
|
|
continue;
|
|
}
|
|
|
|
vinfo = sGLXLibrary.xGetVisualFromFBConfig(display, cfgs[i]);
|
|
|
|
if (vinfo) {
|
|
chosenIndex = i;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!vinfo) {
|
|
NS_WARNING("glXChooseFBConfig() didn't give us any configs with visuals!");
|
|
return nsnull;
|
|
}
|
|
|
|
ScopedXErrorHandler xErrorHandler;
|
|
GLXPixmap glxpixmap = 0;
|
|
bool error = false;
|
|
|
|
nsRefPtr<gfxXlibSurface> xsurface = gfxXlibSurface::Create(DefaultScreenOfDisplay(display),
|
|
vinfo->visual,
|
|
gfxIntSize(16, 16));
|
|
if (xsurface->CairoStatus() != 0) {
|
|
error = true;
|
|
goto DONE_CREATING_PIXMAP;
|
|
}
|
|
|
|
// Handle slightly different signature between glXCreatePixmap and
|
|
// its pre-GLX-1.3 extension equivalent (though given the ABI, we
|
|
// might not need to).
|
|
if (GLXVersionCheck(1, 3)) {
|
|
glxpixmap = sGLXLibrary.xCreatePixmap(display,
|
|
cfgs[chosenIndex],
|
|
xsurface->XDrawable(),
|
|
NULL);
|
|
} else {
|
|
glxpixmap = sGLXLibrary.xCreateGLXPixmapWithConfig(display,
|
|
cfgs[chosenIndex],
|
|
xsurface->
|
|
XDrawable());
|
|
}
|
|
if (glxpixmap == 0) {
|
|
error = true;
|
|
}
|
|
|
|
DONE_CREATING_PIXMAP:
|
|
|
|
nsRefPtr<GLContextGLX> glContext;
|
|
bool serverError = xErrorHandler.SyncAndGetError(display);
|
|
|
|
if (!error && // earlier recorded error
|
|
!serverError)
|
|
{
|
|
glContext = GLContextGLX::CreateGLContext(
|
|
aFormat,
|
|
display,
|
|
glxpixmap,
|
|
cfgs[chosenIndex],
|
|
vinfo,
|
|
aShare ? GetGlobalContextGLX() : nsnull,
|
|
PR_TRUE,
|
|
xsurface);
|
|
}
|
|
|
|
return glContext.forget();
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderGLX::CreateOffscreen(const gfxIntSize& aSize,
|
|
const ContextFormat& aFormat)
|
|
{
|
|
|
|
nsRefPtr<GLContextGLX> glContext =
|
|
CreateOffscreenPixmapContext(aSize, aFormat, PR_TRUE);
|
|
|
|
if (!glContext) {
|
|
return nsnull;
|
|
}
|
|
|
|
if (!glContext->GetSharedContext()) {
|
|
// no point in returning anything if sharing failed, we can't
|
|
// render from this
|
|
return nsnull;
|
|
}
|
|
|
|
if (!glContext->ResizeOffscreenFBO(aSize)) {
|
|
// we weren't able to create the initial
|
|
// offscreen FBO, so this is dead
|
|
return nsnull;
|
|
}
|
|
|
|
return glContext.forget();
|
|
}
|
|
|
|
already_AddRefed<GLContext>
|
|
GLContextProviderGLX::CreateForNativePixmapSurface(gfxASurface *aSurface)
|
|
{
|
|
if (!sGLXLibrary.EnsureInitialized()) {
|
|
return nsnull;
|
|
}
|
|
|
|
if (aSurface->GetType() != gfxASurface::SurfaceTypeXlib) {
|
|
NS_WARNING("GLContextProviderGLX::CreateForNativePixmapSurface called with non-Xlib surface");
|
|
return nsnull;
|
|
}
|
|
|
|
nsAutoTArray<int, 20> attribs;
|
|
|
|
#define A1_(_x) do { attribs.AppendElement(_x); } while(0)
|
|
#define A2_(_x,_y) do { \
|
|
attribs.AppendElement(_x); \
|
|
attribs.AppendElement(_y); \
|
|
} while(0)
|
|
|
|
A2_(GLX_DOUBLEBUFFER, False);
|
|
A2_(GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT);
|
|
A1_(0);
|
|
|
|
int numFormats;
|
|
Display *display = DefaultXDisplay();
|
|
int xscreen = DefaultScreen(display);
|
|
|
|
ScopedXFree<GLXFBConfig> cfg(sGLXLibrary.xChooseFBConfig(display,
|
|
xscreen,
|
|
attribs.Elements(),
|
|
&numFormats));
|
|
if (!cfg) {
|
|
return nsnull;
|
|
}
|
|
NS_ASSERTION(numFormats > 0,
|
|
"glXChooseFBConfig() failed to match our requested format and violated its spec (!)");
|
|
|
|
gfxXlibSurface *xs = static_cast<gfxXlibSurface*>(aSurface);
|
|
|
|
GLXPixmap glxpixmap = sGLXLibrary.xCreatePixmap(display,
|
|
cfg[0],
|
|
xs->XDrawable(),
|
|
NULL);
|
|
|
|
nsRefPtr<GLContextGLX> glContext = GLContextGLX::CreateGLContext(ContextFormat(ContextFormat::BasicRGB24),
|
|
display,
|
|
glxpixmap,
|
|
cfg[0],
|
|
NULL,
|
|
NULL,
|
|
PR_FALSE,
|
|
xs);
|
|
|
|
return glContext.forget();
|
|
}
|
|
|
|
static nsRefPtr<GLContext> gGlobalContext;
|
|
|
|
GLContext *
|
|
GLContextProviderGLX::GetGlobalContext()
|
|
{
|
|
static bool triedToCreateContext = false;
|
|
if (!triedToCreateContext && !gGlobalContext) {
|
|
triedToCreateContext = true;
|
|
gGlobalContext = CreateOffscreenPixmapContext(gfxIntSize(1, 1),
|
|
ContextFormat(ContextFormat::BasicRGB24),
|
|
PR_FALSE);
|
|
if (gGlobalContext)
|
|
gGlobalContext->SetIsGlobalSharedContext(PR_TRUE);
|
|
}
|
|
|
|
return gGlobalContext;
|
|
}
|
|
|
|
void
|
|
GLContextProviderGLX::Shutdown()
|
|
{
|
|
gGlobalContext = nsnull;
|
|
}
|
|
|
|
} /* namespace gl */
|
|
} /* namespace mozilla */
|