This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_x11video.c
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/*
SDL - Simple DirectMedia Layer
Copyright (C) 1997-2006 Sam Lantinga
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Sam Lantinga
slouken@libsdl.org
*/
#include "SDL_config.h"
#include "SDL_video.h"
#include "SDL_mouse.h"
#include "../SDL_sysvideo.h"
#include "../SDL_pixels_c.h"
#include "SDL_x11video.h"
//#include "SDL_d3drender.h"
//#include "SDL_gdirender.h"
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XDevice **SDL_XDevices;
int SDL_NumOfXDevices;
XEventClass SDL_XEvents[256];
int SDL_NumOfXEvents;
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int motion, button_pressed, button_released;
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int proximity_in, proximity_out;
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/* Initialization/Query functions */
static int X11_VideoInit(_THIS);
static void X11_VideoQuit(_THIS);
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/* 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");
}
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/* 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)
{
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SDL_VideoData *data = (SDL_VideoData *) device->driverdata;
if (data->display) {
XCloseDisplay(data->display);
}
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SDL_free(data->windowlist);
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SDL_free(device->driverdata);
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));
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if (!device) {
SDL_OutOfMemory();
return NULL;
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data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
if (!data) {
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SDL_OutOfMemory();
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SDL_free(device);
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return NULL;
}
device->driverdata = data;
/* 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;
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device->SetDisplayGammaRamp = X11_SetDisplayGammaRamp;
device->GetDisplayGammaRamp = X11_GetDisplayGammaRamp;
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device->PumpEvents = X11_PumpEvents;
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device->CreateWindow = X11_CreateWindow;
device->CreateWindowFrom = X11_CreateWindowFrom;
device->SetWindowTitle = X11_SetWindowTitle;
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->SetWindowGrab = X11_SetWindowGrab;
device->DestroyWindow = X11_DestroyWindow;
device->GetWindowWMInfo = X11_GetWindowWMInfo;
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#ifdef SDL_VIDEO_OPENGL_GLX
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device->GL_LoadLibrary = X11_GL_LoadLibrary;
device->GL_GetProcAddress = X11_GL_GetProcAddress;
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
device->free = X11_DeleteDevice;
return device;
}
VideoBootStrap X11_bootstrap = {
"x11", "SDL X11 video driver",
X11_Available, X11_CreateDevice
};
int
X11_VideoInit(_THIS)
{
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int i,index=0,c_not_needed;
XEventClass xEvent;
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SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
/* Get the window class name, usually the name of the application */
data->classname = get_classname();
/* 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
/* Save DPMS and screensaver settings */
X11_SaveScreenSaver(data->display, &data->screensaver_timeout,
&data->dpms_enabled);
X11_DisableScreenSaver(data->display);
/* Look up some useful Atoms */
data->WM_DELETE_WINDOW =
XInternAtom(data->display, "WM_DELETE_WINDOW", False);
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X11_InitModes(_this);
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if (X11_InitKeyboard(_this) != 0) {
return -1;
}
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X11_InitMouse(_this);
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for(i=0;i<SDL_NumOfXDevices;++i)
{
DeviceKeyPress(SDL_XDevices[i],c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceKeyRelease(SDL_XDevices[i],c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
/* focus events */
DeviceFocusIn(SDL_XDevices[i],c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceFocusOut(SDL_XDevices[i],c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
/* button events */
DeviceButtonPress(SDL_XDevices[i],c_not_needed,xEvent);
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if (xEvent)
{
SDL_XEvents[index++] = xEvent;
button_pressed=c_not_needed;
}
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DeviceButtonRelease(SDL_XDevices[i],c_not_needed,xEvent);
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if (xEvent)
{
SDL_XEvents[index++] = xEvent;
button_released=c_not_needed;
}
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/* proximity events */
ProximityIn(SDL_XDevices[i],c_not_needed,xEvent);
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if (xEvent)
{
SDL_XEvents[index++] = xEvent;
proximity_in=c_not_needed;
}
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ProximityOut(SDL_XDevices[i],c_not_needed,xEvent);
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if (xEvent)
{
SDL_XEvents[index++] = xEvent;
proximity_out=c_not_needed;
}
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/* motion events */
DeviceMotionNotify(SDL_XDevices[i],c_not_needed,xEvent);
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if (xEvent)
{
SDL_XEvents[index++] = xEvent;
motion=c_not_needed;
}
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/* device state */
DeviceStateNotify(SDL_XDevices[i],c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceMappingNotify(SDL_XDevices[i],
c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
ChangeDeviceNotify(SDL_XDevices[i],c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
#if 0
/* this cuts the motion data down - not sure if this is useful */
DevicePointerMotionHint(SDL_XDevices[i],
c_not_neededINPUTEVENT_DEVICE_POINTER_MOTION_HINT],xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
#endif
/* button motion */
DeviceButtonMotion(SDL_XDevices[i],
c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceButton1Motion(SDL_XDevices[i],
c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceButton2Motion(SDL_XDevices[i],
c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceButton3Motion(SDL_XDevices[i],
c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceButton4Motion(SDL_XDevices[i],
c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
DeviceButton5Motion(SDL_XDevices[i],
c_not_needed,xEvent);
if (xEvent) SDL_XEvents[index++] = xEvent;
}
SDL_NumOfXEvents=index;
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return 0;
}
void
X11_VideoQuit(_THIS)
{
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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_RestoreScreenSaver(data->display, data->screensaver_timeout,
data->dpms_enabled);
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X11_QuitModes(_this);
X11_QuitKeyboard(_this);
X11_QuitMouse(_this);
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free(SDL_XDevices);
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/*void X11_ForwardWindowCoordinates(int x, int y)
{
SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
}*/
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/* vim: set ts=4 sw=4 expandtab: */