| // Copyright 2016 The SwiftShader Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include "libX11.hpp" |
| |
| #include "Common/SharedLibrary.hpp" |
| |
| LibX11exports::LibX11exports(void *libX11, void *libXext) |
| { |
| XOpenDisplay = (Display *(*)(char*))getProcAddress(libX11, "XOpenDisplay"); |
| XGetWindowAttributes = (Status (*)(Display*, Window, XWindowAttributes*))getProcAddress(libX11, "XGetWindowAttributes"); |
| XDefaultScreenOfDisplay = (Screen *(*)(Display*))getProcAddress(libX11, "XDefaultScreenOfDisplay"); |
| XWidthOfScreen = (int (*)(Screen*))getProcAddress(libX11, "XWidthOfScreen"); |
| XHeightOfScreen = (int (*)(Screen*))getProcAddress(libX11, "XHeightOfScreen"); |
| XPlanesOfScreen = (int (*)(Screen*))getProcAddress(libX11, "XPlanesOfScreen"); |
| XCreateGC = (GC (*)(Display *, Drawable, unsigned long, XGCValues *))getProcAddress(libX11, "XCreateGC"); |
| XFreeGC = (int (*)(Display *, GC))getProcAddress(libX11, "XFreeGC"); |
| XSetErrorHandler = (int (*(*)(int (*)(Display*, XErrorEvent*)))(Display*, XErrorEvent*))getProcAddress(libX11, "XSetErrorHandler"); |
| XSync = (int (*)(Display*, Bool))getProcAddress(libX11, "XSync"); |
| XCreateImage = (XImage *(*)(Display*, Visual*, unsigned int, int, int, char*, unsigned int, unsigned int, int, int))getProcAddress(libX11, "XCreateImage"); |
| XCloseDisplay = (int (*)(Display*))getProcAddress(libX11, "XCloseDisplay"); |
| XPutImage = (int (*)(Display*, Drawable, GC, XImage*, int, int, int, int, unsigned int, unsigned int))getProcAddress(libX11, "XPutImage"); |
| XDrawString = (int (*)(Display*, Drawable, GC, int, int, char*, int))getProcAddress(libX11, "XDrawString"); |
| |
| XShmQueryExtension = (Bool (*)(Display*))getProcAddress(libXext, "XShmQueryExtension"); |
| XShmCreateImage = (XImage *(*)(Display*, Visual*, unsigned int, int, char*, XShmSegmentInfo*, unsigned int, unsigned int))getProcAddress(libXext, "XShmCreateImage"); |
| XShmAttach = (Bool (*)(Display*, XShmSegmentInfo*))getProcAddress(libXext, "XShmAttach"); |
| XShmDetach = (Bool (*)(Display*, XShmSegmentInfo*))getProcAddress(libXext, "XShmDetach"); |
| XShmPutImage = (int (*)(Display*, Drawable, GC, XImage*, int, int, int, int, unsigned int, unsigned int, bool))getProcAddress(libXext, "XShmPutImage"); |
| } |
| |
| LibX11exports *LibX11::operator->() |
| { |
| return loadExports(); |
| } |
| |
| LibX11exports *LibX11::loadExports() |
| { |
| static void *libX11 = nullptr; |
| static void *libXext = nullptr; |
| static LibX11exports *libX11exports = nullptr; |
| |
| if(!libX11) |
| { |
| if(getProcAddress(RTLD_DEFAULT, "XOpenDisplay")) // Search the global scope for pre-loaded X11 library. |
| { |
| libX11exports = new LibX11exports(RTLD_DEFAULT, RTLD_DEFAULT); |
| libX11 = (void*)-1; // No need to load it. |
| } |
| else |
| { |
| libX11 = loadLibrary("libX11.so"); |
| |
| if(libX11) |
| { |
| libXext = loadLibrary("libXext.so"); |
| libX11exports = new LibX11exports(libX11, libXext); |
| } |
| else |
| { |
| libX11 = (void*)-1; // Don't attempt loading more than once. |
| } |
| } |
| } |
| |
| return libX11exports; |
| } |
| |
| LibX11 libX11; |