/*

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"

/* Utilities for getting and setting the X display mode */

#include <stdio.h>

#include "SDL_timer.h"

#include "SDL_events.h"

#include "../../events/SDL_events_c.h"

#include "SDL_x11video.h"

#include "SDL_x11wm_c.h"

#include "SDL_x11modes_c.h"

#include "SDL_x11image_c.h"

#if SDL_VIDEO_DRIVER_X11_XINERAMA

#include "../Xext/extensions/Xinerama.h"

#endif

#define MAX(a, b) (a > b ? a : b)

#if SDL_VIDEO_DRIVER_X11_VIDMODE

Bool SDL_NAME(XF86VidModeGetModeInfo)(Display *dpy, int scr, SDL_NAME(XF86VidModeModeInfo) *info)

{

SDL_NAME(XF86VidModeModeLine) *l = (SDL_NAME(XF86VidModeModeLine)*)((char*)info + sizeof info->dotclock);

return SDL_NAME(XF86VidModeGetModeLine)(dpy, scr, (int*)&info->dotclock, l);

}

#endif /* SDL_VIDEO_DRIVER_X11_VIDMODE */

#if SDL_VIDEO_DRIVER_X11_VIDMODE

static void save_mode(_THIS)

{

SDL_memset(&saved_mode, 0, sizeof(saved_mode));

SDL_NAME(XF86VidModeGetModeInfo)(SDL_Display,SDL_Screen,&saved_mode);

SDL_NAME(XF86VidModeGetViewPort)(SDL_Display,SDL_Screen,&saved_view.x,&saved_view.y);

}

#endif

#if SDL_VIDEO_DRIVER_X11_VIDMODE

static void restore_mode(_THIS)

{

SDL_NAME(XF86VidModeModeLine) mode;

int unused;

if ( SDL_NAME(XF86VidModeGetModeLine)(SDL_Display, SDL_Screen, &unused, &mode) ) {

if ( (saved_mode.hdisplay != mode.hdisplay) ||

(saved_mode.vdisplay != mode.vdisplay) ) {

SDL_NAME(XF86VidModeSwitchToMode)(SDL_Display, SDL_Screen, &saved_mode);

}

}

if ( (saved_view.x != 0) || (saved_view.y != 0) ) {

SDL_NAME(XF86VidModeSetViewPort)(SDL_Display, SDL_Screen, saved_view.x, saved_view.y);

}

}

#endif

#if SDL_VIDEO_DRIVER_X11_VIDMODE

static int cmpmodes(const void *va, const void *vb)

{

const SDL_NAME(XF86VidModeModeInfo) *a = *(const SDL_NAME(XF86VidModeModeInfo)**)va;

const SDL_NAME(XF86VidModeModeInfo) *b = *(const SDL_NAME(XF86VidModeModeInfo)**)vb;

if ( a->hdisplay == b->hdisplay )

return b->vdisplay - a->vdisplay;

else

return b->hdisplay - a->hdisplay;

}

#endif

#if SDL_VIDEO_DRIVER_X11_XRANDR

static int cmpmodelist(const void *va, const void *vb)

{

const SDL_Rect *a = *(const SDL_Rect **)va;

const SDL_Rect *b = *(const SDL_Rect **)vb;

if ( a->w == b->w )

return b->h - a->h;

else

return b->w - a->w;

}

#endif

static void get_real_resolution(_THIS, int* w, int* h);

static void set_best_resolution(_THIS, int width, int height)

{

#if SDL_VIDEO_DRIVER_X11_VIDMODE

if ( use_vidmode ) {

SDL_NAME(XF86VidModeModeLine) mode;

SDL_NAME(XF86VidModeModeInfo) **modes;

int i;

int best_width = 0, best_height = 0;

int nmodes;

if ( SDL_NAME(XF86VidModeGetModeLine)(SDL_Display, SDL_Screen, &i, &mode) &&

SDL_NAME(XF86VidModeGetAllModeLines)(SDL_Display,SDL_Screen,&nmodes,&modes)){

#ifdef XFREE86_DEBUG

printf("Available modes (unsorted):\n");

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

printf("Mode %d: %d x %d @ %d\n", i,

modes[i]->hdisplay, modes[i]->vdisplay,

1000 * modes[i]->dotclock / (modes[i]->htotal *

modes[i]->vtotal) );

}

#endif

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

if ( (modes[i]->hdisplay == width) &&

(modes[i]->vdisplay == height) )

goto match;

}

qsort(modes, nmodes, sizeof *modes, cmpmodes);

for ( i = nmodes-1; i > 0 ; i-- ) {

if ( ! best_width ) {

if ( (modes[i]->hdisplay >= width) &&

(modes[i]->vdisplay >= height) ) {

best_width = modes[i]->hdisplay;

best_height = modes[i]->vdisplay;

}

} else {

if ( (modes[i]->hdisplay != best_width) ||

(modes[i]->vdisplay != best_height) ) {

i++;

break;

}

}

}

match:

if ( (modes[i]->hdisplay != mode.hdisplay) ||

(modes[i]->vdisplay != mode.vdisplay) ) {

SDL_NAME(XF86VidModeSwitchToMode)(SDL_Display, SDL_Screen, modes[i]);

}

XFree(modes);

}

}

#endif /* SDL_VIDEO_DRIVER_X11_VIDMODE */

/* XiG */

#if SDL_VIDEO_DRIVER_X11_XME

#ifdef XIG_DEBUG

fprintf(stderr, "XME: set_best_resolution(): w = %d, h = %d\n",

width, height);

#endif

if ( SDL_modelist ) {

int i;

for ( i=0; SDL_modelist[i]; ++i ) {

if ( (SDL_modelist[i]->w >= width) &&

(SDL_modelist[i]->h >= height) ) {

break;

}

}

if ( SDL_modelist[i] ) { /* found one, lets try it */

int w, h;

/* check current mode so we can avoid uneccessary mode changes */

get_real_resolution(this, &w, &h);

if ( (SDL_modelist[i]->w != w) || (SDL_modelist[i]->h != h) ) {

# ifdef XIG_DEBUG

fprintf(stderr, "XME: set_best_resolution: "

"XiGMiscChangeResolution: %d %d\n",

SDL_modelist[s]->w, SDL_modelist[s]->h);

# endif

XiGMiscChangeResolution(SDL_Display,

SDL_Screen,

0, /* view */

SDL_modelist[i]->w,

SDL_modelist[i]->h,

0);

XSync(SDL_Display, False);

}

}

}

#endif /* SDL_VIDEO_DRIVER_X11_XME */

#if SDL_VIDEO_DRIVER_X11_XRANDR

if ( use_xrandr ) {

#ifdef XRANDR_DEBUG

fprintf(stderr, "XRANDR: set_best_resolution(): w = %d, h = %d\n",

width, height);

#endif

if ( SDL_modelist ) {

int i, nsizes;

XRRScreenSize *sizes;

/* find the smallest resolution that is at least as big as the user requested */

sizes = XRRConfigSizes(screen_config, &nsizes);

for ( i = (nsizes-1); i >= 0; i-- ) {

if ( (SDL_modelist[i]->w >= width) &&

(SDL_modelist[i]->h >= height) ) {

break;

}

}

if ( i >= 0 && SDL_modelist[i] ) { /* found one, lets try it */

int w, h;

/* check current mode so we can avoid uneccessary mode changes */

get_real_resolution(this, &w, &h);

if ( (SDL_modelist[i]->w != w) || (SDL_modelist[i]->h != h) ) {

int size_id;

#ifdef XRANDR_DEBUG

fprintf(stderr, "XRANDR: set_best_resolution: "

"XXRSetScreenConfig: %d %d\n",

SDL_modelist[i]->w, SDL_modelist[i]->h);

#endif

/* find the matching size entry index */

for ( size_id = 0; size_id < nsizes; ++size_id ) {

if ( (sizes[size_id].width == SDL_modelist[i]->w) &&

(sizes[size_id].height == SDL_modelist[i]->h) )

break;

}

XRRSetScreenConfig(SDL_Display, screen_config, SDL_Root,

size_id, saved_rotation, CurrentTime);

}

}

}

}

#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */

}

static void get_real_resolution(_THIS, int* w, int* h)

{

#if SDL_VIDEO_DRIVER_X11_VIDMODE

if ( use_vidmode ) {

SDL_NAME(XF86VidModeModeLine) mode;

int unused;

if ( SDL_NAME(XF86VidModeGetModeLine)(SDL_Display, SDL_Screen, &unused, &mode) ) {

*w = mode.hdisplay;

*h = mode.vdisplay;

return;

}

}

#endif /* SDL_VIDEO_DRIVER_X11_VIDMODE */

#if SDL_VIDEO_DRIVER_X11_XME

if ( use_xme ) {

int ractive;

XiGMiscResolutionInfo *modelist;

XiGMiscQueryResolutions(SDL_Display, SDL_Screen,

0, /* view */

&ractive, &modelist);

*w = modelist[ractive].width;

*h = modelist[ractive].height;

#ifdef XIG_DEBUG

fprintf(stderr, "XME: get_real_resolution: w = %d h = %d\n", *w, *h);

#endif

XFree(modelist);

return;

}

#endif /* SDL_VIDEO_DRIVER_X11_XME */

#if SDL_VIDEO_DRIVER_X11_XRANDR

if ( use_xrandr ) {

int nsizes;

XRRScreenSize* sizes;

sizes = XRRConfigSizes(screen_config, &nsizes);

if ( nsizes > 0 ) {

int cur_size;

Rotation cur_rotation;

cur_size = XRRConfigCurrentConfiguration(screen_config, &cur_rotation);

if ( cur_size >= 0 && cur_size < nsizes ) {

*w = sizes[cur_size].width;

*h = sizes[cur_size].height;

}

#ifdef XRANDR_DEBUG

fprintf(stderr, "XRANDR: get_real_resolution: w = %d h = %d\n", *w, *h);

#endif

return;

}

}

#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */

*w = DisplayWidth(SDL_Display, SDL_Screen);

*h = DisplayHeight(SDL_Display, SDL_Screen);

}

/* Called after mapping a window - waits until the window is mapped */

void X11_WaitMapped(_THIS, Window win)

{

XEvent event;

do {

XMaskEvent(SDL_Display, StructureNotifyMask, &event);

} while ( (event.type != MapNotify) || (event.xmap.event != win) );

}

/* Called after unmapping a window - waits until the window is unmapped */

void X11_WaitUnmapped(_THIS, Window win)

{

XEvent event;

do {

XMaskEvent(SDL_Display, StructureNotifyMask, &event);

} while ( (event.type != UnmapNotify) || (event.xunmap.event != win) );

}

static void move_cursor_to(_THIS, int x, int y)

{

XWarpPointer(SDL_Display, None, SDL_Root, 0, 0, 0, 0, x, y);

}

static int add_visual(_THIS, int depth, int class)

{

XVisualInfo vi;

if(XMatchVisualInfo(SDL_Display, SDL_Screen, depth, class, &vi)) {

int n = this->hidden->nvisuals;

this->hidden->visuals[n].depth = vi.depth;

this->hidden->visuals[n].visual = vi.visual;

this->hidden->nvisuals++;

}

return(this->hidden->nvisuals);

}

static int add_visual_byid(_THIS, const char *visual_id)

{

XVisualInfo *vi, template;

int nvis;

if ( visual_id ) {

SDL_memset(&template, 0, (sizeof template));

template.visualid = SDL_strtol(visual_id, NULL, 0);

vi = XGetVisualInfo(SDL_Display, VisualIDMask, &template, &nvis);

if ( vi ) {

int n = this->hidden->nvisuals;

this->hidden->visuals[n].depth = vi->depth;

this->hidden->visuals[n].visual = vi->visual;

this->hidden->nvisuals++;

XFree(vi);

}

}

return(this->hidden->nvisuals);

}

/* Global for the error handler */

int vm_event, vm_error = -1;

#if SDL_VIDEO_DRIVER_X11_XRANDR

static int CheckXRandR(_THIS, int *major, int *minor)

{

char *env;

/* Default the extension not available */

*major = *minor = 0;

/* Allow environment override */

env = getenv("SDL_VIDEO_X11_XRANDR");

if ( env && !SDL_atoi(env) ) {

return 0;

}

/* This defaults off now, due to KDE window maximize problems */

if ( !env ) {

return 0;

}

if ( !SDL_X11_HAVE_XRANDR ) {

return 0;

}

/* Query the extension version */

if ( !XRRQueryVersion(SDL_Display, major, minor) ) {

return 0;

}

return 1;

}

#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */

#if SDL_VIDEO_DRIVER_X11_VIDMODE

static int CheckVidMode(_THIS, int *major, int *minor)

{

char *env;

/* Default the extension not available */

*major = *minor = 0;

/* Allow environment override */

env = getenv("SDL_VIDEO_X11_VIDMODE");

if ( env && !SDL_atoi(env) ) {

return 0;

}

/* Metro-X 4.3.0 and earlier has a broken implementation of

XF86VidModeGetAllModeLines() - it hangs the client.

*/

if ( SDL_strcmp(ServerVendor(SDL_Display), "Metro Link Incorporated") == 0 ) {

FILE *metro_fp;

metro_fp = fopen("/usr/X11R6/lib/X11/Metro/.version", "r");

if ( metro_fp != NULL ) {

int major, minor, patch, version;

major = 0; minor = 0; patch = 0;

fscanf(metro_fp, "%d.%d.%d", &major, &minor, &patch);

fclose(metro_fp);

version = major*100+minor*10+patch;

if ( version < 431 ) {

return 0;

}

}

}

/* Query the extension version */

if ( !SDL_NAME(XF86VidModeQueryExtension)(SDL_Display, &vm_event, &vm_error) ||

!SDL_NAME(XF86VidModeQueryVersion)(SDL_Display, major, minor) ) {

return 0;

}

return 1;

}

#endif /* SDL_VIDEO_DRIVER_X11_VIDMODE */

#if SDL_VIDEO_DRIVER_X11_XME

static int CheckXME(_THIS, int *major, int *minor)

{

char *env;

/* Default the extension not available */

*major = *minor = 0;

/* Allow environment override */

env = getenv("SDL_VIDEO_X11_VIDMODE");

if ( env && !SDL_atoi(env) ) {

return 0;

}

/* Query the extension version */

if ( !XiGMiscQueryVersion(SDL_Display, major, minor) ) {

return 0;

}

return 1;

}

#endif /* SDL_VIDEO_DRIVER_X11_XME */

int X11_GetVideoModes(_THIS)

{

#if SDL_VIDEO_DRIVER_X11_XRANDR

int xrandr_major, xrandr_minor;

int nsizes;

XRRScreenSize *sizes;

#endif

#if SDL_VIDEO_DRIVER_X11_VIDMODE

int vm_major, vm_minor;

int nmodes;

SDL_NAME(XF86VidModeModeInfo) **modes;

#endif

#if SDL_VIDEO_DRIVER_X11_XME

int xme_major, xme_minor;

int ractive, nummodes;

XiGMiscResolutionInfo *modelist;

#endif

int i, n;

int screen_w;

int screen_h;

use_vidmode = 0;

use_xrandr = 0;

screen_w = DisplayWidth(SDL_Display, SDL_Screen);

screen_h = DisplayHeight(SDL_Display, SDL_Screen);

#if SDL_VIDEO_DRIVER_X11_XRANDR

/* XRandR */

/* require at least XRandR v1.0 (arbitrary) */

if ( CheckXRandR(this, &xrandr_major, &xrandr_minor) && (xrandr_major >= 1) )

{

#ifdef XRANDR_DEBUG

fprintf(stderr, "XRANDR: XRRQueryVersion: V%d.%d\n",

xrandr_major, xrandr_minor);

#endif

/* save the screen configuration since we must reference it

each time we toggle modes.

*/

screen_config = XRRGetScreenInfo(SDL_Display, SDL_Root);

/* retrieve the list of resolution */

sizes = XRRConfigSizes(screen_config, &nsizes);

if (nsizes > 0) {

SDL_modelist = (SDL_Rect **)malloc((nsizes+1)*sizeof(SDL_Rect *));

if (SDL_modelist) {

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

if ((SDL_modelist[i] =

(SDL_Rect *)malloc(sizeof(SDL_Rect))) == NULL)

break;

#ifdef XRANDR_DEBUG

fprintf(stderr, "XRANDR: mode = %4d, w = %4d, h = %4d\n",

i, sizes[i].width, sizes[i].height);

#endif

SDL_modelist[i]->x = 0;

SDL_modelist[i]->y = 0;

SDL_modelist[i]->w = sizes[i].width;

SDL_modelist[i]->h = sizes[i].height;

}

/* sort the mode list descending as SDL expects */

qsort(SDL_modelist, nsizes, sizeof *SDL_modelist, cmpmodelist);

SDL_modelist[i] = NULL; /* terminator */

}

use_xrandr = xrandr_major * 100 + xrandr_minor;

saved_size_id = XRRConfigCurrentConfiguration(screen_config, &saved_rotation);

}

}

#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */

#if SDL_VIDEO_DRIVER_X11_VIDMODE

/* XVidMode */

if ( !use_xrandr && CheckVidMode(this, &vm_major, &vm_minor) &&

SDL_NAME(XF86VidModeGetAllModeLines)(SDL_Display, SDL_Screen,&nmodes,&modes) )

{

#ifdef XFREE86_DEBUG

printf("Available modes: (sorted)\n");

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

printf("Mode %d: %d x %d @ %d\n", i,

modes[i]->hdisplay, modes[i]->vdisplay,

1000 * modes[i]->dotclock / (modes[i]->htotal *

modes[i]->vtotal) );

}

#endif

SDL_qsort(modes, nmodes, sizeof *modes, cmpmodes);

SDL_modelist = (SDL_Rect **)SDL_malloc((nmodes+2)*sizeof(SDL_Rect *));

if ( SDL_modelist ) {

n = 0;

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

int w, h;

/* Eliminate duplicate modes with different refresh rates */

if ( i > 0 &&

modes[i]->hdisplay == modes[i-1]->hdisplay &&

modes[i]->vdisplay == modes[i-1]->vdisplay ) {

continue;

}

/* Check to see if we should add the screen size (Xinerama) */

w = modes[i]->hdisplay;

h = modes[i]->vdisplay;

if ( (screen_w * screen_h) >= (w * h) ) {

if ( (screen_w != w) || (screen_h != h) ) {

SDL_modelist[n] = (SDL_Rect *)SDL_malloc(sizeof(SDL_Rect));

if ( SDL_modelist[n] ) {

SDL_modelist[n]->x = 0;

SDL_modelist[n]->y = 0;

SDL_modelist[n]->w = screen_w;

SDL_modelist[n]->h = screen_h;

++n;

}

}

screen_w = 0;

screen_h = 0;

}

/* Add the size from the video mode list */

SDL_modelist[n] = (SDL_Rect *)SDL_malloc(sizeof(SDL_Rect));

if ( SDL_modelist[n] == NULL ) {

break;

}

SDL_modelist[n]->x = 0;

SDL_modelist[n]->y = 0;

SDL_modelist[n]->w = w;

SDL_modelist[n]->h = h;

++n;

}

SDL_modelist[n] = NULL;

}

XFree(modes);

use_vidmode = vm_major * 100 + vm_minor;

save_mode(this);

}

#endif /* SDL_VIDEO_DRIVER_X11_VIDMODE */

#if SDL_VIDEO_DRIVER_X11_XME

/* XiG */

modelist = NULL;

/* first lets make sure we have the extension, and it's at least v2.0 */

if ( CheckXME(this, &xme_major, &xme_minor) && xme_major >= 2 &&

(nummodes = XiGMiscQueryResolutions(SDL_Display, SDL_Screen,

0, /* view */

&ractive, &modelist)) > 1 )

{ /* then we actually have some */

int j;

#ifdef XIG_DEBUG

fprintf(stderr, "XME: nummodes = %d, active mode = %d\n",

nummodes, ractive);

#endif

SDL_modelist = (SDL_Rect **)SDL_malloc((nummodes+1)*sizeof(SDL_Rect *));

/* we get the list already sorted in */

/* descending order. We'll copy it in */

/* reverse order so SDL is happy */

if (SDL_modelist) {

for ( i=0, j=nummodes-1; j>=0; i++, j-- ) {

if ((SDL_modelist[i] =

(SDL_Rect *)SDL_malloc(sizeof(SDL_Rect))) == NULL)

break;

#ifdef XIG_DEBUG

fprintf(stderr, "XME: mode = %4d, w = %4d, h = %4d\n",

i, modelist[i].width, modelist[i].height);

#endif

SDL_modelist[i]->x = 0;

SDL_modelist[i]->y = 0;

SDL_modelist[i]->w = modelist[j].width;

SDL_modelist[i]->h = modelist[j].height;

}

SDL_modelist[i] = NULL; /* terminator */

}

use_xme = 1;

saved_res = modelist[ractive]; /* save the current resolution */

} else {

use_xme = 0;

}

if ( modelist ) {

XFree(modelist);

}

#endif /* SDL_VIDEO_DRIVER_X11_XME */

{

/* It's interesting to note that if we allow 32 bit depths,

we get a visual with an alpha mask on composite servers.

static int depth_list[] = { 32, 24, 16, 15, 8 };

*/

static int depth_list[] = { 24, 16, 15, 8 };

int j, np;

int use_directcolor = 1;

XPixmapFormatValues *pf;

/* Search for the visuals in deepest-first order, so that the first

will be the richest one */

if ( SDL_getenv("SDL_VIDEO_X11_NODIRECTCOLOR") ) {

use_directcolor = 0;

}

this->hidden->nvisuals = 0;

if ( ! add_visual_byid(this, SDL_getenv("SDL_VIDEO_X11_VISUALID")) ) {

for ( i=0; i<SDL_arraysize(depth_list); ++i ) {

if ( depth_list[i] > 8 ) {

if ( use_directcolor ) {

add_visual(this, depth_list[i], DirectColor);

}

add_visual(this, depth_list[i], TrueColor);

} else {

add_visual(this, depth_list[i], PseudoColor);

add_visual(this, depth_list[i], StaticColor);

}

}

}

if ( this->hidden->nvisuals == 0 ) {

SDL_SetError("Found no sufficiently capable X11 visuals");

return -1;

}

/* look up the pixel quantum for each depth */

pf = XListPixmapFormats(SDL_Display, &np);

for(i = 0; i < this->hidden->nvisuals; i++) {

int d = this->hidden->visuals[i].depth;

for(j = 0; j < np; j++)

if(pf[j].depth == d)

break;

this->hidden->visuals[i].bpp = j < np ? pf[j].bits_per_pixel : d;

}

XFree(pf);

}

if ( SDL_modelist == NULL ) {

SDL_modelist = (SDL_Rect **)SDL_malloc((1+1)*sizeof(SDL_Rect *));

if ( SDL_modelist ) {

n = 0;

SDL_modelist[n] = (SDL_Rect *)SDL_malloc(sizeof(SDL_Rect));

if ( SDL_modelist[n] ) {

SDL_modelist[n]->x = 0;

SDL_modelist[n]->y = 0;

SDL_modelist[n]->w = screen_w;

SDL_modelist[n]->h = screen_h;

++n;

}

SDL_modelist[n] = NULL;

}

}

#if defined(XFREE86_DEBUG) || defined(XIG_DEBUG)

if ( use_xrandr ) {

printf("XRandR is enabled\n");

}

if ( use_vidmode ) {

printf("XFree86 VidMode is enabled\n");

}

#if SDL_VIDEO_DRIVER_X11_XME

if ( use_xme )

printf("Xi Graphics XME fullscreen is enabled\n");

else

printf("Xi Graphics XME fullscreen is not available\n");

#endif

if ( SDL_modelist ) {

printf("X11 video mode list:\n");

for ( i=0; SDL_modelist[i]; ++i ) {

printf("\t%dx%d\n", SDL_modelist[i]->w, SDL_modelist[i]->h);

}

}

#endif /* XFREE86_DEBUG || XIG_DEBUG */

/* The default X/Y fullscreen offset is 0/0 */

xinerama_x = 0;

xinerama_y = 0;

#if SDL_VIDEO_DRIVER_X11_XINERAMA

/* Query Xinerama extention */

if ( SDL_NAME(XineramaQueryExtension)(SDL_Display, &i, &i) &&

SDL_NAME(XineramaIsActive)(SDL_Display) ) {

/* Find out which screen is the desired one */

int desired = 0;

int screens;

SDL_NAME(XineramaScreenInfo) *xinerama;

#ifdef XINERAMA_DEBUG

printf("X11 detected Xinerama:\n");

#endif

#if 0 /* Apparently the vidmode extension doesn't work with Xinerama */

const char *variable = SDL_getenv("SDL_VIDEO_X11_XINERAMA_SCREEN");

if ( variable ) {

desired = atoi(variable);

}

#endif

xinerama = SDL_NAME(XineramaQueryScreens)(SDL_Display, &screens);

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

#ifdef XINERAMA_DEBUG

printf("xinerama %d: %dx%d+%d+%d\n",

xinerama[i].screen_number,

xinerama[i].width, xinerama[i].height,

xinerama[i].x_org, xinerama[i].y_org);

#endif

if ( xinerama[i].screen_number == desired ) {

xinerama_x = xinerama[i].x_org;

xinerama_y = xinerama[i].y_org;

}

}

XFree(xinerama);

}

#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */

return 0;

}

int X11_SupportedVisual(_THIS, SDL_PixelFormat *format)

{

int i;

for(i = 0; i < this->hidden->nvisuals; i++)

if(this->hidden->visuals[i].bpp == format->BitsPerPixel)

return 1;

return 0;

}

SDL_Rect **X11_ListModes(_THIS, SDL_PixelFormat *format, Uint32 flags)

{

if ( X11_SupportedVisual(this, format) ) {

if ( flags & SDL_FULLSCREEN ) {

return(SDL_modelist);

} else {

return((SDL_Rect **)-1);

}

} else {

return((SDL_Rect **)0);

}

}

void X11_FreeVideoModes(_THIS)

{

int i;

if ( SDL_modelist ) {

for ( i=0; SDL_modelist[i]; ++i ) {

SDL_free(SDL_modelist[i]);

}

SDL_free(SDL_modelist);

SDL_modelist = NULL;

}

#if SDL_VIDEO_DRIVER_X11_XRANDR

/* Free the Xrandr screen configuration */

if ( screen_config ) {

XRRFreeScreenConfigInfo(screen_config);

screen_config = NULL;

}

#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */

}

int X11_ResizeFullScreen(_THIS)

{

int x, y;

int real_w, real_h;

int screen_w;

int screen_h;

screen_w = DisplayWidth(SDL_Display, SDL_Screen);

screen_h = DisplayHeight(SDL_Display, SDL_Screen);

x = xinerama_x;

y = xinerama_y;

if ( currently_fullscreen ) {

/* Switch resolution and cover it with the FSwindow */

move_cursor_to(this, x, y);

set_best_resolution(this, window_w, window_h);

move_cursor_to(this, x, y);

get_real_resolution(this, &real_w, &real_h);

if ( window_w > real_w ) {

real_w = MAX(real_w, screen_w);

}

if ( window_h > real_h ) {

real_h = MAX(real_h, screen_h);

}

XMoveResizeWindow(SDL_Display, FSwindow, x, y, real_w, real_h);

move_cursor_to(this, real_w/2, real_h/2);

/* Center and reparent the drawing window */

x = (real_w - window_w)/2;

y = (real_h - window_h)/2;

XReparentWindow(SDL_Display, SDL_Window, FSwindow, x, y);

/* FIXME: move the mouse to the old relative location */

XSync(SDL_Display, True); /* Flush spurious mode change events */

}

return(1);

}

void X11_QueueEnterFullScreen(_THIS)

{

switch_waiting = 0x01 | SDL_FULLSCREEN;

switch_time = SDL_GetTicks() + 1500;

#if 0 /* This causes a BadMatch error if the window is iconified (not needed) */

XSetInputFocus(SDL_Display, WMwindow, RevertToNone, CurrentTime);

#endif

}

int X11_EnterFullScreen(_THIS)

{

int okay;

#if 0

Window tmpwin, *windows;

int i, nwindows;

#endif

int real_w, real_h;

int screen_w;

int screen_h;

okay = 1;

if ( currently_fullscreen ) {

return(okay);

}

/* Ungrab the input so that we can move the mouse around */

X11_GrabInputNoLock(this, SDL_GRAB_OFF);

/* Map the fullscreen window to blank the screen */

screen_w = DisplayWidth(SDL_Display, SDL_Screen);

screen_h = DisplayHeight(SDL_Display, SDL_Screen);

get_real_resolution(this, &real_w, &real_h);

if ( window_w > real_w ) {

real_w = MAX(real_w, screen_w);

}

if ( window_h > real_h ) {

real_h = MAX(real_h, screen_h);

}

XMoveResizeWindow(SDL_Display, FSwindow,

xinerama_x, xinerama_y, real_w, real_h);

XMapRaised(SDL_Display, FSwindow);

X11_WaitMapped(this, FSwindow);

#if 0 /* This seems to break WindowMaker in focus-follows-mouse mode */

/* Make sure we got to the top of the window stack */

if ( XQueryTree(SDL_Display, SDL_Root, &tmpwin, &tmpwin,

&windows, &nwindows) && windows ) {

/* If not, try to put us there - if fail... oh well */

if ( windows[nwindows-1] != FSwindow ) {

tmpwin = windows[nwindows-1];

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

if ( windows[i] == FSwindow ) {

SDL_memcpy(&windows[i], &windows[i+1],

(nwindows-i-1)*sizeof(windows[i]));

break;

}

}

windows[nwindows-1] = FSwindow;

XRestackWindows(SDL_Display, windows, nwindows);

XSync(SDL_Display, False);

}

XFree(windows);

}

#else

XRaiseWindow(SDL_Display, FSwindow);

#endif

#if SDL_VIDEO_DRIVER_X11_VIDMODE

/* Save the current video mode */

if ( use_vidmode ) {

SDL_NAME(XF86VidModeLockModeSwitch)(SDL_Display, SDL_Screen, True);

}

#endif

currently_fullscreen = 1;

/* Set the new resolution */

okay = X11_ResizeFullScreen(this);

if ( ! okay ) {

X11_LeaveFullScreen(this);

}

/* Set the colormap */

if ( SDL_XColorMap ) {

XInstallColormap(SDL_Display, SDL_XColorMap);

}

if ( okay )

X11_GrabInputNoLock(this, this->input_grab | SDL_GRAB_FULLSCREEN);

/* We may need to refresh the screen at this point (no backing store)

We also don't get an event, which is why we explicitly refresh. */

if ( this->screen ) {

if ( this->screen->flags & SDL_OPENGL ) {

SDL_PrivateExpose();

} else {

X11_RefreshDisplay(this);

}

}

return(okay);

}

int X11_LeaveFullScreen(_THIS)

{

if ( currently_fullscreen ) {

XReparentWindow(SDL_Display, SDL_Window, WMwindow, 0, 0);

#if SDL_VIDEO_DRIVER_X11_VIDMODE

if ( use_vidmode ) {

restore_mode(this);

SDL_NAME(XF86VidModeLockModeSwitch)(SDL_Display, SDL_Screen, False);

}

#endif

#if SDL_VIDEO_DRIVER_X11_XME

if ( use_xme ) {

int rw, rh;

/* check current mode so we can avoid uneccessary mode changes */

get_real_resolution(this, &rw, &rh);

if (rw != saved_res.width || rh != saved_res.height) {

XiGMiscChangeResolution(SDL_Display,

SDL_Screen,

0, /* view */

saved_res.width,

saved_res.height,

0);

XSync(SDL_Display, False);

}

}

#endif

#if SDL_VIDEO_DRIVER_X11_XRANDR

if ( use_xrandr ) {

XRRSetScreenConfig(SDL_Display, screen_config, SDL_Root,

saved_size_id, saved_rotation, CurrentTime);

}

#endif

XUnmapWindow(SDL_Display, FSwindow);

X11_WaitUnmapped(this, FSwindow);

XSync(SDL_Display, True); /* Flush spurious mode change events */

currently_fullscreen = 0;

}

/* If we get popped out of fullscreen mode for some reason, input_grab

will still have the SDL_GRAB_FULLSCREEN flag set, since this is only

temporary. In this case, release the grab unless the input has been

explicitly grabbed.

*/