1 // Copyright 2016 The SwiftShader Authors. All Rights Reserved. 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef libX11_hpp 16 #define libX11_hpp 17 18 #define Bool int 19 #include <X11/Xlib.h> 20 #include <X11/Xutil.h> 21 #include <X11/extensions/XShm.h> 22 23 struct LibX11exports 24 { 25 LibX11exports(void *libX11, void *libXext); 26 27 Display *(*XOpenDisplay)(char *display_name); 28 Status (*XGetWindowAttributes)(Display *display, Window w, XWindowAttributes *window_attributes_return); 29 Screen *(*XDefaultScreenOfDisplay)(Display *display); 30 int (*XWidthOfScreen)(Screen *screen); 31 int (*XHeightOfScreen)(Screen *screen); 32 int (*XPlanesOfScreen)(Screen *screen); 33 GC(*XDefaultGC) 34 (Display *display, int screen_number); 35 int (*XDefaultDepth)(Display *display, int screen_number); 36 Status (*XMatchVisualInfo)(Display *display, int screen, int depth, int screen_class, XVisualInfo *vinfo_return); 37 Visual *(*XDefaultVisual)(Display *display, int screen_number); 38 int (*(*XSetErrorHandler)(int (*handler)(Display *, XErrorEvent *)))(Display *, XErrorEvent *); 39 int (*XSync)(Display *display, Bool discard); 40 XImage *(*XCreateImage)(Display *display, Visual *visual, unsigned int depth, int format, int offset, char *data, unsigned int width, unsigned int height, int bitmap_pad, int bytes_per_line); 41 int (*XCloseDisplay)(Display *display); 42 int (*XPutImage)(Display *display, Drawable d, GC gc, XImage *image, int src_x, int src_y, int dest_x, int dest_y, unsigned int width, unsigned int height); 43 int (*XDrawString)(Display *display, Drawable d, GC gc, int x, int y, char *string, int length); 44 45 Bool (*XShmQueryExtension)(Display *display); 46 XImage *(*XShmCreateImage)(Display *display, Visual *visual, unsigned int depth, int format, char *data, XShmSegmentInfo *shminfo, unsigned int width, unsigned int height); 47 Bool (*XShmAttach)(Display *display, XShmSegmentInfo *shminfo); 48 Bool (*XShmDetach)(Display *display, XShmSegmentInfo *shminfo); 49 int (*XShmPutImage)(Display *display, Drawable d, GC gc, XImage *image, int src_x, int src_y, int dest_x, int dest_y, unsigned int width, unsigned int height, bool send_event); 50 }; 51 52 #undef Bool // b/127920555 53 54 class LibX11 55 { 56 public: operator bool()57 operator bool() 58 { 59 return loadExports(); 60 } 61 62 LibX11exports *operator->(); 63 64 private: 65 LibX11exports *loadExports(); 66 }; 67 68 extern LibX11 libX11; 69 70 #endif // libX11_hpp 71