/*

Simple DirectMedia Layer

Copyright (C) 1997-2011 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 "../SDL_sysvideo.h"

#include "../SDL_pixels_c.h"

#include "../../events/SDL_keyboard_c.h"

#include "../../events/SDL_mouse_c.h"

#include "SDL_x11video.h"

#include "SDL_x11mouse.h"

#include "SDL_x11shape.h"

#ifdef SDL_VIDEO_DRIVER_PANDORA

#include "SDL_x11opengles.h"

#endif

#include "SDL_timer.h"

#include "SDL_syswm.h"

#define _NET_WM_STATE_REMOVE 0l

#define _NET_WM_STATE_ADD 1l

#define _NET_WM_STATE_TOGGLE 2l

static SDL_bool

X11_IsWindowOldFullscreen(_THIS, SDL_Window * window)

{

SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;

/* ICCCM2.0-compliant window managers can handle fullscreen windows */

if ((window->flags & SDL_WINDOW_FULLSCREEN) && !videodata->net_wm) {

return SDL_TRUE;

} else {

return SDL_FALSE;

}

}

static SDL_bool

X11_IsWindowMapped(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;

XWindowAttributes attr;

XGetWindowAttributes(videodata->display, data->xwindow, &attr);

if (attr.map_state != IsUnmapped) {

return SDL_TRUE;

} else {

return SDL_FALSE;

}

}

static int

X11_GetWMStateProperty(_THIS, SDL_Window * window, Atom atoms[3])

{

SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

int count = 0;

if (window->flags & SDL_WINDOW_FULLSCREEN) {

atoms[count++] = data->_NET_WM_STATE_FULLSCREEN;

}

if (window->flags & SDL_WINDOW_MAXIMIZED) {

atoms[count++] = data->_NET_WM_STATE_MAXIMIZED_VERT;

atoms[count++] = data->_NET_WM_STATE_MAXIMIZED_HORZ;

}

return count;

}

static int

SetupWindowData(_THIS, SDL_Window * window, Window w, BOOL created)

{

SDL_VideoData *videodata = (SDL_VideoData *) _this->driverdata;

SDL_WindowData *data;

int numwindows = videodata->numwindows;

int windowlistlength = videodata->windowlistlength;

SDL_WindowData **windowlist = videodata->windowlist;

/* Allocate the window data */

data = (SDL_WindowData *) SDL_calloc(1, sizeof(*data));

if (!data) {

SDL_OutOfMemory();

return -1;

}

data->window = window;

data->xwindow = w;

#ifdef X_HAVE_UTF8_STRING

if (SDL_X11_HAVE_UTF8) {

data->ic =

pXCreateIC(videodata->im, XNClientWindow, w, XNFocusWindow, w,

XNInputStyle, XIMPreeditNothing | XIMStatusNothing,

XNResourceName, videodata->classname, XNResourceClass,

videodata->classname, NULL);

}

#endif

data->created = created;

data->videodata = videodata;

/* Associate the data with the window */

if (numwindows < windowlistlength) {

windowlist[numwindows] = data;

videodata->numwindows++;

} else {

windowlist =

(SDL_WindowData **) SDL_realloc(windowlist,

(numwindows +

1) * sizeof(*windowlist));

if (!windowlist) {

SDL_OutOfMemory();

SDL_free(data);

return -1;

}

windowlist[numwindows] = data;

videodata->numwindows++;

videodata->windowlistlength++;

videodata->windowlist = windowlist;

}

/* Fill in the SDL window with the window data */

{

XWindowAttributes attrib;

XGetWindowAttributes(data->videodata->display, w, &attrib);

window->x = attrib.x;

window->y = attrib.y;

window->w = attrib.width;

window->h = attrib.height;

if (attrib.map_state != IsUnmapped) {

window->flags |= SDL_WINDOW_SHOWN;

} else {

window->flags &= ~SDL_WINDOW_SHOWN;

}

data->visual = attrib.visual;

data->colormap = attrib.colormap;

}

{

Atom _NET_WM_STATE = data->videodata->_NET_WM_STATE;

Atom _NET_WM_STATE_MAXIMIZED_VERT = data->videodata->_NET_WM_STATE_MAXIMIZED_VERT;

Atom _NET_WM_STATE_MAXIMIZED_HORZ = data->videodata->_NET_WM_STATE_MAXIMIZED_HORZ;

Atom _NET_WM_STATE_FULLSCREEN = data->videodata->_NET_WM_STATE_FULLSCREEN;

Atom actualType;

int actualFormat;

unsigned long i, numItems, bytesAfter;

unsigned char *propertyValue = NULL;

long maxLength = 1024;

if (XGetWindowProperty(data->videodata->display, w, _NET_WM_STATE,

0l, maxLength, False, XA_ATOM, &actualType,

&actualFormat, &numItems, &bytesAfter,

&propertyValue) == Success) {

Atom *atoms = (Atom *) propertyValue;

int maximized = 0;

int fullscreen = 0;

for (i = 0; i < numItems; ++i) {

if (atoms[i] == _NET_WM_STATE_MAXIMIZED_VERT) {

maximized |= 1;

} else if (atoms[i] == _NET_WM_STATE_MAXIMIZED_HORZ) {

maximized |= 2;

} else if ( atoms[i] == _NET_WM_STATE_FULLSCREEN) {

fullscreen = 1;

}

}

if (maximized == 3) {

window->flags |= SDL_WINDOW_MAXIMIZED;

} else if (fullscreen == 1) {

window->flags |= SDL_WINDOW_FULLSCREEN;

}

XFree(propertyValue);

}

}

/* FIXME: How can I tell?

{

DWORD style = GetWindowLong(hwnd, GWL_STYLE);

if (style & WS_VISIBLE) {

if (style & (WS_BORDER | WS_THICKFRAME)) {

window->flags &= ~SDL_WINDOW_BORDERLESS;

} else {

window->flags |= SDL_WINDOW_BORDERLESS;

}

if (style & WS_THICKFRAME) {

window->flags |= SDL_WINDOW_RESIZABLE;

} else {

window->flags &= ~SDL_WINDOW_RESIZABLE;

}

if (style & WS_MINIMIZE) {

window->flags |= SDL_WINDOW_MINIMIZED;

} else {

window->flags &= ~SDL_WINDOW_MINIMIZED;

}

}

if (GetFocus() == hwnd) {

int index = data->videodata->keyboard;

window->flags |= SDL_WINDOW_INPUT_FOCUS;

SDL_SetKeyboardFocus(index, data->window);

if (window->flags & SDL_WINDOW_INPUT_GRABBED) {

RECT rect;

GetClientRect(hwnd, &rect);

ClientToScreen(hwnd, (LPPOINT) & rect);

ClientToScreen(hwnd, (LPPOINT) & rect + 1);

ClipCursor(&rect);

}

}

*/

/* All done! */

window->driverdata = data;

return 0;

}

int

X11_CreateWindow(_THIS, SDL_Window * window)

{

SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

SDL_DisplayData *displaydata =

(SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;

Display *display = data->display;

int screen = displaydata->screen;

Visual *visual;

int depth;

XSetWindowAttributes xattr;

Window w;

XSizeHints *sizehints;

XWMHints *wmhints;

XClassHint *classhints;

Atom _NET_WM_WINDOW_TYPE;

Atom _NET_WM_WINDOW_TYPE_NORMAL;

int wmstate_count;

Atom wmstate_atoms[3];

#if SDL_VIDEO_DRIVER_X11_XINERAMA

/* FIXME

if ( use_xinerama ) {

x = xinerama_info.x_org;

y = xinerama_info.y_org;

}

*/

#endif

#if SDL_VIDEO_OPENGL_GLX

if (window->flags & SDL_WINDOW_OPENGL) {

XVisualInfo *vinfo;

vinfo = X11_GL_GetVisual(_this, display, screen);

if (!vinfo) {

return -1;

}

visual = vinfo->visual;

depth = vinfo->depth;

XFree(vinfo);

} else

#endif

#ifdef SDL_VIDEO_DRIVER_PANDORA

if (window->flags & SDL_WINDOW_OPENGL) {

XVisualInfo *vinfo;

vinfo = X11_GLES_GetVisual(_this, display, screen);

if (!vinfo) {

return -1;

}

visual = vinfo->visual;

depth = vinfo->depth;

XFree(vinfo);

} else

#endif

{

visual = displaydata->visual;

depth = displaydata->depth;

}

xattr.override_redirect = False;

xattr.background_pixel = 0;

xattr.border_pixel = 0;

if (visual->class == DirectColor) {

XColor *colorcells;

int i;

int ncolors;

int rmax, gmax, bmax;

int rmask, gmask, bmask;

int rshift, gshift, bshift;

xattr.colormap =

XCreateColormap(display, RootWindow(display, screen),

visual, AllocAll);

/* If we can't create a colormap, then we must die */

if (!xattr.colormap) {

SDL_SetError("Could not create writable colormap");

return -1;

}

/* OK, we got a colormap, now fill it in as best as we can */

colorcells = SDL_malloc(visual->map_entries * sizeof(XColor));

if (!colorcells) {

SDL_OutOfMemory();

return -1;

}

ncolors = visual->map_entries;

rmax = 0xffff;

gmax = 0xffff;

bmax = 0xffff;

rshift = 0;

rmask = visual->red_mask;

while (0 == (rmask & 1)) {

rshift++;

rmask >>= 1;

}

gshift = 0;

gmask = visual->green_mask;

while (0 == (gmask & 1)) {

gshift++;

gmask >>= 1;

}

bshift = 0;

bmask = visual->blue_mask;

while (0 == (bmask & 1)) {

bshift++;

bmask >>= 1;

}

/* build the color table pixel values */

for (i = 0; i < ncolors; i++) {

Uint32 red = (rmax * i) / (ncolors - 1);

Uint32 green = (gmax * i) / (ncolors - 1);

Uint32 blue = (bmax * i) / (ncolors - 1);

Uint32 rbits = (rmask * i) / (ncolors - 1);

Uint32 gbits = (gmask * i) / (ncolors - 1);

Uint32 bbits = (bmask * i) / (ncolors - 1);

Uint32 pix =

(rbits << rshift) | (gbits << gshift) | (bbits << bshift);

colorcells[i].pixel = pix;

colorcells[i].red = red;

colorcells[i].green = green;

colorcells[i].blue = blue;

colorcells[i].flags = DoRed | DoGreen | DoBlue;

}

XStoreColors(display, xattr.colormap, colorcells, ncolors);

SDL_free(colorcells);

} else {

xattr.colormap =

XCreateColormap(display, RootWindow(display, screen),

visual, AllocNone);

}

w = XCreateWindow(display, RootWindow(display, screen),

window->x, window->y, window->w, window->h,

0, depth, InputOutput, visual,

(CWOverrideRedirect | CWBackPixel | CWBorderPixel |

CWColormap), &xattr);

if (!w) {

SDL_SetError("Couldn't create window");

return -1;

}

#if SDL_VIDEO_DRIVER_PANDORA

/* Create the GLES window surface */

_this->gles_data->egl_surface =

_this->gles_data->eglCreateWindowSurface(_this->gles_data->

egl_display,

_this->gles_data->egl_config,

(NativeWindowType) w, NULL);

if (_this->gles_data->egl_surface == EGL_NO_SURFACE) {

SDL_SetError("Could not create GLES window surface");

return -1;

}

#endif

sizehints = XAllocSizeHints();

if (sizehints) {

if (!(window->flags & SDL_WINDOW_RESIZABLE)) {

sizehints->min_width = sizehints->max_width = window->w;

sizehints->min_height = sizehints->max_height = window->h;

sizehints->flags = PMaxSize | PMinSize;

}

sizehints->x = window->x;

sizehints->y = window->y;

sizehints->flags |= USPosition;

XSetWMNormalHints(display, w, sizehints);

XFree(sizehints);

}

if (window->flags & SDL_WINDOW_BORDERLESS) {

SDL_bool set;

Atom WM_HINTS;

/* We haven't modified the window manager hints yet */

set = SDL_FALSE;

/* First try to set MWM hints */

WM_HINTS = XInternAtom(display, "_MOTIF_WM_HINTS", True);

if (WM_HINTS != None) {

/* Hints used by Motif compliant window managers */

struct

{

unsigned long flags;

unsigned long functions;

unsigned long decorations;

long input_mode;

unsigned long status;

} MWMHints = {

(1L << 1), 0, 0, 0, 0};

XChangeProperty(display, w, WM_HINTS, WM_HINTS, 32,

PropModeReplace, (unsigned char *) &MWMHints,

sizeof(MWMHints) / 4);

set = SDL_TRUE;

}

/* Now try to set KWM hints */

WM_HINTS = XInternAtom(display, "KWM_WIN_DECORATION", True);

if (WM_HINTS != None) {

long KWMHints = 0;

XChangeProperty(display, w, WM_HINTS, WM_HINTS, 32,

PropModeReplace,

(unsigned char *) &KWMHints,

sizeof(KWMHints) / 4);

set = SDL_TRUE;

}

/* Now try to set GNOME hints */

WM_HINTS = XInternAtom(display, "_WIN_HINTS", True);

if (WM_HINTS != None) {

long GNOMEHints = 0;

XChangeProperty(display, w, WM_HINTS, WM_HINTS, 32,

PropModeReplace,

(unsigned char *) &GNOMEHints,

sizeof(GNOMEHints) / 4);

set = SDL_TRUE;

}

/* Finally set the transient hints if necessary */

if (!set) {

XSetTransientForHint(display, w, RootWindow(display, screen));

}

} else {

SDL_bool set;

Atom WM_HINTS;

/* We haven't modified the window manager hints yet */

set = SDL_FALSE;

/* First try to unset MWM hints */

WM_HINTS = XInternAtom(display, "_MOTIF_WM_HINTS", True);

if (WM_HINTS != None) {

XDeleteProperty(display, w, WM_HINTS);

set = SDL_TRUE;

}

/* Now try to unset KWM hints */

WM_HINTS = XInternAtom(display, "KWM_WIN_DECORATION", True);

if (WM_HINTS != None) {

XDeleteProperty(display, w, WM_HINTS);

set = SDL_TRUE;

}

/* Now try to unset GNOME hints */

WM_HINTS = XInternAtom(display, "_WIN_HINTS", True);

if (WM_HINTS != None) {

XDeleteProperty(display, w, WM_HINTS);

set = SDL_TRUE;

}

/* Finally unset the transient hints if necessary */

if (!set) {

XDeleteProperty(display, w, XA_WM_TRANSIENT_FOR);

}

}

/* Set the input hints so we get keyboard input */

wmhints = XAllocWMHints();

if (wmhints) {

wmhints->input = True;

wmhints->flags = InputHint;

XSetWMHints(display, w, wmhints);

XFree(wmhints);

}

/* Set the class hints so we can get an icon (AfterStep) */

classhints = XAllocClassHint();

if (classhints != NULL) {

classhints->res_name = data->classname;

classhints->res_class = data->classname;

XSetClassHint(display, w, classhints);

XFree(classhints);

}

/* Set the window manager state */

wmstate_count = X11_GetWMStateProperty(_this, window, wmstate_atoms);

if (wmstate_count > 0) {

XChangeProperty(display, w, data->_NET_WM_STATE, XA_ATOM, 32,

PropModeReplace,

(unsigned char *)wmstate_atoms, wmstate_count);

} else {

XDeleteProperty(display, w, data->_NET_WM_STATE);

}

/* Let the window manager know we're a "normal" window */

_NET_WM_WINDOW_TYPE = XInternAtom(display, "_NET_WM_WINDOW_TYPE", False);

_NET_WM_WINDOW_TYPE_NORMAL = XInternAtom(display, "_NET_WM_WINDOW_TYPE_NORMAL", False);

XChangeProperty(display, w, _NET_WM_WINDOW_TYPE, XA_ATOM, 32,

PropModeReplace,

(unsigned char *)&_NET_WM_WINDOW_TYPE_NORMAL, 1);

/* Allow the window to be deleted by the window manager */

XSetWMProtocols(display, w, &data->WM_DELETE_WINDOW, 1);

if (SetupWindowData(_this, window, w, SDL_TRUE) < 0) {

XDestroyWindow(display, w);

return -1;

}

#ifdef X_HAVE_UTF8_STRING

{

Uint32 fevent = 0;

pXGetICValues(((SDL_WindowData *) window->driverdata)->ic,

XNFilterEvents, &fevent, NULL);

XSelectInput(display, w,

(FocusChangeMask | EnterWindowMask | LeaveWindowMask |

ExposureMask | ButtonPressMask | ButtonReleaseMask |

PointerMotionMask | KeyPressMask | KeyReleaseMask |

PropertyChangeMask | StructureNotifyMask |

KeymapStateMask | fevent));

}

#else

{

XSelectInput(display, w,

(FocusChangeMask | EnterWindowMask | LeaveWindowMask |

ExposureMask | ButtonPressMask | ButtonReleaseMask |

PointerMotionMask | KeyPressMask | KeyReleaseMask |

PropertyChangeMask | StructureNotifyMask |

KeymapStateMask));

}

#endif

XFlush(display);

return 0;

}

int

X11_CreateWindowFrom(_THIS, SDL_Window * window, const void *data)

{

Window w = (Window) data;

window->title = X11_GetWindowTitle(_this, w);

if (SetupWindowData(_this, window, w, SDL_FALSE) < 0) {

return -1;

}

return 0;

}

char *

X11_GetWindowTitle(_THIS, Window xwindow)

{

SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;

Display *display = data->display;

int status, real_format;

Atom real_type;

unsigned long items_read, items_left;

unsigned char *propdata;

char *title = NULL;

status = XGetWindowProperty(display, xwindow, data->_NET_WM_NAME,

0L, 8192L, False, data->UTF8_STRING, &real_type, &real_format,

&items_read, &items_left, &propdata);

title = SDL_strdup(SDL_static_cast(char*, propdata));

XFree(propdata);

} else {

status = XGetWindowProperty(display, xwindow, XA_WM_NAME,

0L, 8192L, False, XA_STRING, &real_type, &real_format,

&items_read, &items_left, &propdata);

title = SDL_iconv_string("UTF-8", "", SDL_static_cast(char*, propdata), items_read+1);

} else {

title = SDL_strdup("");

}

}

return title;

}

void

X11_SetWindowTitle(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

XTextProperty titleprop, iconprop;

Status status;

const char *title = window->title;

const char *icon = NULL;

#ifdef X_HAVE_UTF8_STRING

Atom _NET_WM_NAME = data->videodata->_NET_WM_NAME;

Atom _NET_WM_ICON_NAME = data->videodata->_NET_WM_ICON_NAME;

#endif

if (title != NULL) {

char *title_locale = SDL_iconv_utf8_locale(title);

if (!title_locale) {

SDL_OutOfMemory();

return;

}

status = XStringListToTextProperty(&title_locale, 1, &titleprop);

SDL_free(title_locale);

if (status) {

XSetTextProperty(display, data->xwindow, &titleprop, XA_WM_NAME);

XFree(titleprop.value);

}

#ifdef X_HAVE_UTF8_STRING

if (SDL_X11_HAVE_UTF8) {

status =

Xutf8TextListToTextProperty(display, (char **) &title, 1,

XUTF8StringStyle, &titleprop);

if (status == Success) {

XSetTextProperty(display, data->xwindow, &titleprop,

_NET_WM_NAME);

XFree(titleprop.value);

}

}

#endif

}

if (icon != NULL) {

char *icon_locale = SDL_iconv_utf8_locale(icon);

if (!icon_locale) {

SDL_OutOfMemory();

return;

}

status = XStringListToTextProperty(&icon_locale, 1, &iconprop);

SDL_free(icon_locale);

if (status) {

XSetTextProperty(display, data->xwindow, &iconprop,

XA_WM_ICON_NAME);

XFree(iconprop.value);

}

#ifdef X_HAVE_UTF8_STRING

if (SDL_X11_HAVE_UTF8) {

status =

Xutf8TextListToTextProperty(display, (char **) &icon, 1,

XUTF8StringStyle, &iconprop);

if (status == Success) {

XSetTextProperty(display, data->xwindow, &iconprop,

_NET_WM_ICON_NAME);

XFree(iconprop.value);

}

}

#endif

}

XFlush(display);

}

void

X11_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

Atom _NET_WM_ICON = data->videodata->_NET_WM_ICON;

if (icon) {

SDL_PixelFormat format;

SDL_Surface *surface;

int propsize;

long *propdata;

/* Convert the icon to ARGB for modern window managers */

SDL_InitFormat(&format, SDL_PIXELFORMAT_ARGB8888);

surface = SDL_ConvertSurface(icon, &format, 0);

if (!surface) {

return;

}

/* Set the _NET_WM_ICON property */

propsize = 2 + (icon->w * icon->h);

propdata = SDL_malloc(propsize * sizeof(long));

if (propdata) {

int x, y;

Uint32 *src;

long *dst;

propdata[0] = icon->w;

propdata[1] = icon->h;

dst = &propdata[2];

for (y = 0; y < icon->h; ++y) {

src = (Uint32*)((Uint8*)surface->pixels + y * surface->pitch);

for (x = 0; x < icon->w; ++x) {

*dst++ = *src++;

}

}

XChangeProperty(display, data->xwindow, _NET_WM_ICON, XA_CARDINAL,

32, PropModeReplace, (unsigned char *) propdata,

propsize);

}

SDL_FreeSurface(surface);

} else {

XDeleteProperty(display, data->xwindow, _NET_WM_ICON);

}

XFlush(display);

}

void

X11_SetWindowPosition(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

XMoveWindow(display, data->xwindow, window->x, window->y);

XFlush(display);

}

void

X11_SetWindowSize(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

if (SDL_IsShapedWindow(window))

X11_ResizeWindowShape(window);

if (!(window->flags & SDL_WINDOW_RESIZABLE)) {

/* Apparently, if the X11 Window is set to a 'non-resizable' window, you cannot resize it using the XResizeWindow, thus

we must set the size hints to adjust the window size.*/

XSizeHints *sizehints = XAllocSizeHints();

long userhints;

XGetWMNormalHints(display, data->xwindow, sizehints, &userhints);

sizehints->min_width = sizehints->max_height = window->w;

sizehints->min_height = sizehints->max_height = window->h;

XSetWMNormalHints(display, data->xwindow, sizehints);

XFree(sizehints);

} else

XResizeWindow(display, data->xwindow, window->w, window->h);

XFlush(display);

}

void

X11_ShowWindow(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

XMapRaised(display, data->xwindow);

XFlush(display);

}

void

X11_HideWindow(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

XUnmapWindow(display, data->xwindow);

XFlush(display);

}

void

X11_RaiseWindow(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

XRaiseWindow(display, data->xwindow);

XFlush(display);

}

static void

SetWindowMaximized(_THIS, SDL_Window * window, SDL_bool maximized)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

SDL_DisplayData *displaydata =

(SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;

Display *display = data->videodata->display;

Atom _NET_WM_STATE = data->videodata->_NET_WM_STATE;

Atom _NET_WM_STATE_MAXIMIZED_VERT = data->videodata->_NET_WM_STATE_MAXIMIZED_VERT;

Atom _NET_WM_STATE_MAXIMIZED_HORZ = data->videodata->_NET_WM_STATE_MAXIMIZED_HORZ;

Atom _NET_WM_STATE_FULLSCREEN = data->videodata->_NET_WM_STATE_FULLSCREEN;

if (X11_IsWindowMapped(_this, window)) {

XEvent e;

SDL_zero(e);

e.xany.type = ClientMessage;

e.xclient.message_type = _NET_WM_STATE;

e.xclient.format = 32;

e.xclient.window = data->xwindow;

e.xclient.data.l[0] =

maximized ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;

e.xclient.data.l[1] = _NET_WM_STATE_MAXIMIZED_VERT;

e.xclient.data.l[2] = _NET_WM_STATE_MAXIMIZED_HORZ;

e.xclient.data.l[3] = 0l;

XSendEvent(display, RootWindow(display, displaydata->screen), 0,

SubstructureNotifyMask | SubstructureRedirectMask, &e);

} else {

int count = 0;

Atom atoms[3];

if (window->flags & SDL_WINDOW_FULLSCREEN) {

atoms[count++] = _NET_WM_STATE_FULLSCREEN;

}

if (maximized) {

atoms[count++] = _NET_WM_STATE_MAXIMIZED_VERT;

atoms[count++] = _NET_WM_STATE_MAXIMIZED_HORZ;

}

if (count > 0) {

XChangeProperty(display, data->xwindow, _NET_WM_STATE, XA_ATOM, 32,

PropModeReplace, (unsigned char *)atoms, count);

} else {

XDeleteProperty(display, data->xwindow, _NET_WM_STATE);

}

}

XFlush(display);

}

void

X11_MaximizeWindow(_THIS, SDL_Window * window)

{

SetWindowMaximized(_this, window, SDL_TRUE);

}

void

X11_MinimizeWindow(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

SDL_DisplayData *displaydata =

(SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;

Display *display = data->videodata->display;

XIconifyWindow(display, data->xwindow, displaydata->screen);

XFlush(display);

}

void

X11_RestoreWindow(_THIS, SDL_Window * window)

{

SetWindowMaximized(_this, window, SDL_FALSE);

X11_ShowWindow(_this, window);

}

void

X11_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay * _display, SDL_bool fullscreen)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

SDL_DisplayData *displaydata = (SDL_DisplayData *) _display->driverdata;

Display *display = data->videodata->display;

Atom _NET_WM_STATE = data->videodata->_NET_WM_STATE;

Atom _NET_WM_STATE_MAXIMIZED_VERT = data->videodata->_NET_WM_STATE_MAXIMIZED_VERT;

Atom _NET_WM_STATE_MAXIMIZED_HORZ = data->videodata->_NET_WM_STATE_MAXIMIZED_HORZ;

Atom _NET_WM_STATE_FULLSCREEN = data->videodata->_NET_WM_STATE_FULLSCREEN;

if (X11_IsWindowMapped(_this, window)) {

XEvent e;

SDL_zero(e);

e.xany.type = ClientMessage;

e.xclient.message_type = _NET_WM_STATE;

e.xclient.format = 32;

e.xclient.window = data->xwindow;

e.xclient.data.l[0] =

fullscreen ? _NET_WM_STATE_ADD : _NET_WM_STATE_REMOVE;

e.xclient.data.l[1] = _NET_WM_STATE_FULLSCREEN;

e.xclient.data.l[3] = 0l;

XSendEvent(display, RootWindow(display, displaydata->screen), 0,

SubstructureNotifyMask | SubstructureRedirectMask, &e);

} else {

int count = 0;

Atom atoms[3];

if (fullscreen) {

atoms[count++] = _NET_WM_STATE_FULLSCREEN;

}

if (window->flags & SDL_WINDOW_MAXIMIZED) {

atoms[count++] = _NET_WM_STATE_MAXIMIZED_VERT;

atoms[count++] = _NET_WM_STATE_MAXIMIZED_HORZ;

}

if (count > 0) {

XChangeProperty(display, data->xwindow, _NET_WM_STATE, XA_ATOM, 32,

PropModeReplace, (unsigned char *)atoms, count);

} else {

XDeleteProperty(display, data->xwindow, _NET_WM_STATE);

}

}

XFlush(display);

}

int

X11_SetWindowGammaRamp(_THIS, SDL_Window * window, const Uint16 * ramp)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

Visual *visual = data->visual;

Colormap colormap = data->colormap;

XColor *colorcells;

int ncolors;

int rmask, gmask, bmask;

int rshift, gshift, bshift;

if (visual->class != DirectColor) {

SDL_SetError("Window doesn't have DirectColor visual");

return -1;

}

ncolors = visual->map_entries;

colorcells = SDL_malloc(ncolors * sizeof(XColor));

if (!colorcells) {

SDL_OutOfMemory();

return -1;

}

rshift = 0;

rmask = visual->red_mask;

while (0 == (rmask & 1)) {

rshift++;

rmask >>= 1;

}

gshift = 0;

gmask = visual->green_mask;

while (0 == (gmask & 1)) {

gshift++;

gmask >>= 1;

}

bshift = 0;

bmask = visual->blue_mask;

while (0 == (bmask & 1)) {

bshift++;

bmask >>= 1;

}

/* build the color table pixel values */

for (i = 0; i < ncolors; i++) {

Uint32 rbits = (rmask * i) / (ncolors - 1);

Uint32 gbits = (gmask * i) / (ncolors - 1);

Uint32 bbits = (bmask * i) / (ncolors - 1);

Uint32 pix = (rbits << rshift) | (gbits << gshift) | (bbits << bshift);

colorcells[i].pixel = pix;

colorcells[i].red = ramp[(0 * 256) + i];

colorcells[i].green = ramp[(1 * 256) + i];

colorcells[i].blue = ramp[(2 * 256) + i];

colorcells[i].flags = DoRed | DoGreen | DoBlue;

}

XStoreColors(display, colormap, colorcells, ncolors);

XFlush(display);

SDL_free(colorcells);

return 0;

}

void

X11_SetWindowGrab(_THIS, SDL_Window * window)

{

SDL_WindowData *data = (SDL_WindowData *) window->driverdata;

Display *display = data->videodata->display;

SDL_bool oldstyle_fullscreen;

/* ICCCM2.0-compliant window managers can handle fullscreen windows */

oldstyle_fullscreen = X11_IsWindowOldFullscreen(_this, window);

if (((window->flags & SDL_WINDOW_INPUT_GRABBED) || oldstyle_fullscreen)

&& (window->flags & SDL_WINDOW_INPUT_FOCUS)) {

/* Try to grab the mouse */

for (;;) {

int result =