/project/jni/sdl-1.3/src/video/x11/SDL_x11video.c
https://github.com/aichunyu/FFPlayer · C · 399 lines · 298 code · 50 blank · 51 comment · 45 complexity · eb6544ecba998f5ab854310c0cbc12f1 MD5 · raw file
- /*
- Simple DirectMedia Layer
- Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
- This software is provided 'as-is', without any express or implied
- warranty. In no event will the authors be held liable for any damages
- arising from the use of this software.
- Permission is granted to anyone to use this software for any purpose,
- including commercial applications, and to alter it and redistribute it
- freely, subject to the following restrictions:
- 1. The origin of this software must not be misrepresented; you must not
- claim that you wrote the original software. If you use this software
- in a product, an acknowledgment in the product documentation would be
- appreciated but is not required.
- 2. Altered source versions must be plainly marked as such, and must not be
- misrepresented as being the original software.
- 3. This notice may not be removed or altered from any source distribution.
- */
- #include "SDL_config.h"
- #if SDL_VIDEO_DRIVER_X11
- #include <unistd.h> /* For getpid() and readlink() */
- #include "SDL_video.h"
- #include "SDL_mouse.h"
- #include "../SDL_sysvideo.h"
- #include "../SDL_pixels_c.h"
- #include "SDL_x11video.h"
- #include "SDL_x11framebuffer.h"
- #include "SDL_x11shape.h"
- #include "SDL_x11touch.h"
- #if SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
- #include "SDL_x11opengles.h"
- #endif
- /* Initialization/Query functions */
- static int X11_VideoInit(_THIS);
- static void X11_VideoQuit(_THIS);
- /* Find out what class name we should use */
- static char *
- get_classname()
- {
- char *spot;
- #if defined(__LINUX__) || defined(__FREEBSD__)
- char procfile[1024];
- char linkfile[1024];
- int linksize;
- #endif
- /* First allow environment variable override */
- spot = SDL_getenv("SDL_VIDEO_X11_WMCLASS");
- if (spot) {
- return SDL_strdup(spot);
- }
- /* Next look at the application's executable name */
- #if defined(__LINUX__) || defined(__FREEBSD__)
- #if defined(__LINUX__)
- SDL_snprintf(procfile, SDL_arraysize(procfile), "/proc/%d/exe", getpid());
- #elif defined(__FREEBSD__)
- SDL_snprintf(procfile, SDL_arraysize(procfile), "/proc/%d/file",
- getpid());
- #else
- #error Where can we find the executable name?
- #endif
- linksize = readlink(procfile, linkfile, sizeof(linkfile) - 1);
- if (linksize > 0) {
- linkfile[linksize] = '\0';
- spot = SDL_strrchr(linkfile, '/');
- if (spot) {
- return SDL_strdup(spot + 1);
- } else {
- return SDL_strdup(linkfile);
- }
- }
- #endif /* __LINUX__ || __FREEBSD__ */
- /* Finally use the default we've used forever */
- return SDL_strdup("SDL_App");
- }
- /* X11 driver bootstrap functions */
- static int
- X11_Available(void)
- {
- Display *display = NULL;
- if (SDL_X11_LoadSymbols()) {
- display = XOpenDisplay(NULL);
- if (display != NULL) {
- XCloseDisplay(display);
- }
- SDL_X11_UnloadSymbols();
- }
- return (display != NULL);
- }
- static void
- X11_DeleteDevice(SDL_VideoDevice * device)
- {
- SDL_VideoData *data = (SDL_VideoData *) device->driverdata;
- if (data->display) {
- XCloseDisplay(data->display);
- }
- SDL_free(data->windowlist);
- SDL_free(device->driverdata);
- #if SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
- SDL_free(device->gles_data);
- #endif
- SDL_free(device);
- SDL_X11_UnloadSymbols();
- }
- static SDL_VideoDevice *
- X11_CreateDevice(int devindex)
- {
- SDL_VideoDevice *device;
- SDL_VideoData *data;
- const char *display = NULL; /* Use the DISPLAY environment variable */
- if (!SDL_X11_LoadSymbols()) {
- return NULL;
- }
- /* Initialize all variables that we clean on shutdown */
- device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
- if (!device) {
- SDL_OutOfMemory();
- return NULL;
- }
- data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
- if (!data) {
- SDL_OutOfMemory();
- SDL_free(device);
- return NULL;
- }
- device->driverdata = data;
- #if SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
- device->gles_data = (struct SDL_PrivateGLESData *) SDL_calloc(1, sizeof(SDL_PrivateGLESData));
- if (!device->gles_data) {
- SDL_OutOfMemory();
- return NULL;
- }
- #endif
- /* FIXME: Do we need this?
- if ( (SDL_strncmp(XDisplayName(display), ":", 1) == 0) ||
- (SDL_strncmp(XDisplayName(display), "unix:", 5) == 0) ) {
- local_X11 = 1;
- } else {
- local_X11 = 0;
- }
- */
- data->display = XOpenDisplay(display);
- #if defined(__osf__) && defined(SDL_VIDEO_DRIVER_X11_DYNAMIC)
- /* On Tru64 if linking without -lX11, it fails and you get following message.
- * Xlib: connection to ":0.0" refused by server
- * Xlib: XDM authorization key matches an existing client!
- *
- * It succeeds if retrying 1 second later
- * or if running xhost +localhost on shell.
- */
- if (data->display == NULL) {
- SDL_Delay(1000);
- data->display = XOpenDisplay(display);
- }
- #endif
- if (data->display == NULL) {
- SDL_free(device);
- SDL_SetError("Couldn't open X11 display");
- return NULL;
- }
- #ifdef X11_DEBUG
- XSynchronize(data->display, True);
- #endif
- /* Set the function pointers */
- device->VideoInit = X11_VideoInit;
- device->VideoQuit = X11_VideoQuit;
- device->GetDisplayModes = X11_GetDisplayModes;
- device->SetDisplayMode = X11_SetDisplayMode;
- device->SuspendScreenSaver = X11_SuspendScreenSaver;
- device->PumpEvents = X11_PumpEvents;
- device->CreateWindow = X11_CreateWindow;
- device->CreateWindowFrom = X11_CreateWindowFrom;
- device->SetWindowTitle = X11_SetWindowTitle;
- device->SetWindowIcon = X11_SetWindowIcon;
- device->SetWindowPosition = X11_SetWindowPosition;
- device->SetWindowSize = X11_SetWindowSize;
- device->ShowWindow = X11_ShowWindow;
- device->HideWindow = X11_HideWindow;
- device->RaiseWindow = X11_RaiseWindow;
- device->MaximizeWindow = X11_MaximizeWindow;
- device->MinimizeWindow = X11_MinimizeWindow;
- device->RestoreWindow = X11_RestoreWindow;
- device->SetWindowFullscreen = X11_SetWindowFullscreen;
- device->SetWindowGammaRamp = X11_SetWindowGammaRamp;
- device->SetWindowGrab = X11_SetWindowGrab;
- device->DestroyWindow = X11_DestroyWindow;
- device->CreateWindowFramebuffer = X11_CreateWindowFramebuffer;
- device->UpdateWindowFramebuffer = X11_UpdateWindowFramebuffer;
- device->DestroyWindowFramebuffer = X11_DestroyWindowFramebuffer;
- device->GetWindowWMInfo = X11_GetWindowWMInfo;
- device->shape_driver.CreateShaper = X11_CreateShaper;
- device->shape_driver.SetWindowShape = X11_SetWindowShape;
- device->shape_driver.ResizeWindowShape = X11_ResizeWindowShape;
- #if SDL_VIDEO_OPENGL_GLX
- device->GL_LoadLibrary = X11_GL_LoadLibrary;
- device->GL_GetProcAddress = X11_GL_GetProcAddress;
- device->GL_UnloadLibrary = X11_GL_UnloadLibrary;
- device->GL_CreateContext = X11_GL_CreateContext;
- device->GL_MakeCurrent = X11_GL_MakeCurrent;
- device->GL_SetSwapInterval = X11_GL_SetSwapInterval;
- device->GL_GetSwapInterval = X11_GL_GetSwapInterval;
- device->GL_SwapWindow = X11_GL_SwapWindow;
- device->GL_DeleteContext = X11_GL_DeleteContext;
- #endif
- #if SDL_VIDEO_OPENGL_ES || SDL_VIDEO_OPENGL_ES2
- device->GL_LoadLibrary = X11_GLES_LoadLibrary;
- device->GL_GetProcAddress = X11_GLES_GetProcAddress;
- device->GL_UnloadLibrary = X11_GLES_UnloadLibrary;
- device->GL_CreateContext = X11_GLES_CreateContext;
- device->GL_MakeCurrent = X11_GLES_MakeCurrent;
- device->GL_SetSwapInterval = X11_GLES_SetSwapInterval;
- device->GL_GetSwapInterval = X11_GLES_GetSwapInterval;
- device->GL_SwapWindow = X11_GLES_SwapWindow;
- device->GL_DeleteContext = X11_GLES_DeleteContext;
- #endif
- device->SetClipboardText = X11_SetClipboardText;
- device->GetClipboardText = X11_GetClipboardText;
- device->HasClipboardText = X11_HasClipboardText;
- device->free = X11_DeleteDevice;
- return device;
- }
- VideoBootStrap X11_bootstrap = {
- "x11", "SDL X11 video driver",
- X11_Available, X11_CreateDevice
- };
- static int (*handler) (Display *, XErrorEvent *) = NULL;
- static int
- X11_CheckWindowManagerErrorHandler(Display * d, XErrorEvent * e)
- {
- if (e->error_code == BadWindow) {
- return (0);
- } else {
- return (handler(d, e));
- }
- }
- static void
- X11_CheckWindowManager(_THIS)
- {
- SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
- Display *display = data->display;
- Atom _NET_SUPPORTING_WM_CHECK;
- int status, real_format;
- Atom real_type;
- unsigned long items_read, items_left;
- unsigned char *propdata;
- Window wm_window = 0;
- #ifdef DEBUG_WINDOW_MANAGER
- char *wm_name;
- #endif
- /* Set up a handler to gracefully catch errors */
- XSync(display, False);
- handler = XSetErrorHandler(X11_CheckWindowManagerErrorHandler);
- _NET_SUPPORTING_WM_CHECK = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
- status = XGetWindowProperty(display, DefaultRootWindow(display), _NET_SUPPORTING_WM_CHECK, 0L, 1L, False, XA_WINDOW, &real_type, &real_format, &items_read, &items_left, &propdata);
- if (status == Success && items_read) {
- wm_window = ((Window*)propdata)[0];
- }
- if (propdata) {
- XFree(propdata);
- }
- if (wm_window) {
- status = XGetWindowProperty(display, wm_window, _NET_SUPPORTING_WM_CHECK, 0L, 1L, False, XA_WINDOW, &real_type, &real_format, &items_read, &items_left, &propdata);
- if (status != Success || !items_read || wm_window != ((Window*)propdata)[0]) {
- wm_window = None;
- }
- if (propdata) {
- XFree(propdata);
- }
- }
- /* Reset the error handler, we're done checking */
- XSync(display, False);
- XSetErrorHandler(handler);
- if (!wm_window) {
- #ifdef DEBUG_WINDOW_MANAGER
- printf("Couldn't get _NET_SUPPORTING_WM_CHECK property\n");
- #endif
- return;
- }
- data->net_wm = SDL_TRUE;
- #ifdef DEBUG_WINDOW_MANAGER
- wm_name = X11_GetWindowTitle(_this, wm_window);
- printf("Window manager: %s\n", wm_name);
- SDL_free(wm_name);
- #endif
- }
- int
- X11_VideoInit(_THIS)
- {
- SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
- /* Get the window class name, usually the name of the application */
- data->classname = get_classname();
- /* Get the process PID to be associated to the window */
- data->pid = getpid();
- /* Open a connection to the X input manager */
- #ifdef X_HAVE_UTF8_STRING
- if (SDL_X11_HAVE_UTF8) {
- data->im =
- XOpenIM(data->display, NULL, data->classname, data->classname);
- }
- #endif
- /* Look up some useful Atoms */
- #define GET_ATOM(X) data->X = XInternAtom(data->display, #X, False)
- GET_ATOM(WM_DELETE_WINDOW);
- GET_ATOM(_NET_WM_STATE);
- GET_ATOM(_NET_WM_STATE_HIDDEN);
- GET_ATOM(_NET_WM_STATE_MAXIMIZED_VERT);
- GET_ATOM(_NET_WM_STATE_MAXIMIZED_HORZ);
- GET_ATOM(_NET_WM_STATE_FULLSCREEN);
- GET_ATOM(_NET_WM_NAME);
- GET_ATOM(_NET_WM_ICON_NAME);
- GET_ATOM(_NET_WM_ICON);
- GET_ATOM(UTF8_STRING);
- /* Detect the window manager */
- X11_CheckWindowManager(_this);
- if (X11_InitModes(_this) < 0) {
- return -1;
- }
- if (X11_InitKeyboard(_this) != 0) {
- return -1;
- }
- X11_InitMouse(_this);
- X11_InitTouch(_this);
- return 0;
- }
- void
- X11_VideoQuit(_THIS)
- {
- SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
- if (data->classname) {
- SDL_free(data->classname);
- }
- #ifdef X_HAVE_UTF8_STRING
- if (data->im) {
- XCloseIM(data->im);
- }
- #endif
- X11_QuitModes(_this);
- X11_QuitKeyboard(_this);
- X11_QuitMouse(_this);
- X11_QuitTouch(_this);
- }
- SDL_bool
- X11_UseDirectColorVisuals(void)
- {
- return SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ? SDL_FALSE : SDL_TRUE;
- }
- #endif /* SDL_VIDEO_DRIVER_X11 */
- /* vim: set ts=4 sw=4 expandtab: */