src/video/x11/SDL_x11modes.c
author Sam Lantinga
Sun, 02 Feb 2014 00:53:27 -0800
changeset 8149 681eb46b8ac4
parent 8093 b43765095a6f
child 8922 dfb6f8611ebe
permissions -rw-r--r--
Fixed bug 2374 - Update copyright for 2014...

Is it that time already??
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/*
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  Simple DirectMedia Layer
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  Copyright (C) 1997-2014 Sam Lantinga <slouken@libsdl.org>
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  This software is provided 'as-is', without any express or implied
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  warranty.  In no event will the authors be held liable for any damages
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  arising from the use of this software.
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  Permission is granted to anyone to use this software for any purpose,
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  including commercial applications, and to alter it and redistribute it
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  freely, subject to the following restrictions:
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  1. The origin of this software must not be misrepresented; you must not
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     claim that you wrote the original software. If you use this software
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     in a product, an acknowledgment in the product documentation would be
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     appreciated but is not required.
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  2. Altered source versions must be plainly marked as such, and must not be
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     misrepresented as being the original software.
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  3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_X11
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#include "SDL_hints.h"
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#include "SDL_x11video.h"
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#include "edid.h"
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/* #define X11MODES_DEBUG */
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/* I'm becoming more and more convinced that the application should never
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 * use XRandR, and it's the window manager's responsibility to track and
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 * manage display modes for fullscreen windows.  Right now XRandR is completely
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 * broken with respect to window manager behavior on every window manager that
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 * I can find.  For example, on Unity 3D if you show a fullscreen window while
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 * the resolution is changing (within ~250 ms) your window will retain the
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 * fullscreen state hint but be decorated and windowed.
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 *
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 * However, many people swear by it, so let them swear at it. :)
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*/
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/* #define XRANDR_DISABLED_BY_DEFAULT */
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static int
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get_visualinfo(Display * display, int screen, XVisualInfo * vinfo)
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{
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    const char *visual_id = SDL_getenv("SDL_VIDEO_X11_VISUALID");
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    int depth;
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    /* Look for an exact visual, if requested */
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    if (visual_id) {
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        XVisualInfo *vi, template;
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        int nvis;
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        SDL_zero(template);
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        template.visualid = SDL_strtol(visual_id, NULL, 0);
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        vi = X11_XGetVisualInfo(display, VisualIDMask, &template, &nvis);
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        if (vi) {
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            *vinfo = *vi;
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            X11_XFree(vi);
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            return 0;
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        }
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    }
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    depth = DefaultDepth(display, screen);
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    if ((X11_UseDirectColorVisuals() &&
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         X11_XMatchVisualInfo(display, screen, depth, DirectColor, vinfo)) ||
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        X11_XMatchVisualInfo(display, screen, depth, TrueColor, vinfo) ||
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        X11_XMatchVisualInfo(display, screen, depth, PseudoColor, vinfo) ||
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        X11_XMatchVisualInfo(display, screen, depth, StaticColor, vinfo)) {
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        return 0;
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    }
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    return -1;
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}
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int
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X11_GetVisualInfoFromVisual(Display * display, Visual * visual, XVisualInfo * vinfo)
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{
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    XVisualInfo *vi;
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    int nvis;
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    vinfo->visualid = X11_XVisualIDFromVisual(visual);
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    vi = X11_XGetVisualInfo(display, VisualIDMask, vinfo, &nvis);
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    if (vi) {
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        *vinfo = *vi;
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        X11_XFree(vi);
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        return 0;
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    }
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    return -1;
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}
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Uint32
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X11_GetPixelFormatFromVisualInfo(Display * display, XVisualInfo * vinfo)
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{
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    if (vinfo->class == DirectColor || vinfo->class == TrueColor) {
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        int bpp;
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        Uint32 Rmask, Gmask, Bmask, Amask;
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        Rmask = vinfo->visual->red_mask;
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        Gmask = vinfo->visual->green_mask;
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        Bmask = vinfo->visual->blue_mask;
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        if (vinfo->depth == 32) {
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            Amask = (0xFFFFFFFF & ~(Rmask | Gmask | Bmask));
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        } else {
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            Amask = 0;
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        }
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        bpp = vinfo->depth;
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        if (bpp == 24) {
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            int i, n;
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            XPixmapFormatValues *p = X11_XListPixmapFormats(display, &n);
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            if (p) {
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                for (i = 0; i < n; ++i) {
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                    if (p[i].depth == 24) {
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                        bpp = p[i].bits_per_pixel;
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                        break;
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                    }
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                }
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                X11_XFree(p);
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            }
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        }
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        return SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);
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    }
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    if (vinfo->class == PseudoColor || vinfo->class == StaticColor) {
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        switch (vinfo->depth) {
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        case 8:
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            return SDL_PIXELTYPE_INDEX8;
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        case 4:
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            if (BitmapBitOrder(display) == LSBFirst) {
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                return SDL_PIXELFORMAT_INDEX4LSB;
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            } else {
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                return SDL_PIXELFORMAT_INDEX4MSB;
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            }
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            break;
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        case 1:
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            if (BitmapBitOrder(display) == LSBFirst) {
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                return SDL_PIXELFORMAT_INDEX1LSB;
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            } else {
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                return SDL_PIXELFORMAT_INDEX1MSB;
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            }
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            break;
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        }
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    }
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    return SDL_PIXELFORMAT_UNKNOWN;
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}
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/* Global for the error handler */
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int vm_event, vm_error = -1;
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#if SDL_VIDEO_DRIVER_X11_XINERAMA
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static SDL_bool
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CheckXinerama(Display * display, int *major, int *minor)
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{
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    int event_base = 0;
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    int error_base = 0;
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    const char *env;
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    /* Default the extension not available */
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    *major = *minor = 0;
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    /* Allow environment override */
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    env = SDL_GetHint(SDL_HINT_VIDEO_X11_XINERAMA);
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    if (env && !SDL_atoi(env)) {
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#ifdef X11MODES_DEBUG
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        printf("Xinerama disabled due to hint\n");
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#endif
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        return SDL_FALSE;
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    }
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    if (!SDL_X11_HAVE_XINERAMA) {
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#ifdef X11MODES_DEBUG
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        printf("Xinerama support not available\n");
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#endif
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        return SDL_FALSE;
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    }
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    /* Query the extension version */
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    if (!X11_XineramaQueryExtension(display, &event_base, &error_base) ||
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        !X11_XineramaQueryVersion(display, major, minor) ||
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        !X11_XineramaIsActive(display)) {
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#ifdef X11MODES_DEBUG
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        printf("Xinerama not active on the display\n");
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#endif
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        return SDL_FALSE;
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    }
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#ifdef X11MODES_DEBUG
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    printf("Xinerama available at version %d.%d!\n", *major, *minor);
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#endif
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    return SDL_TRUE;
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}
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#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
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#if SDL_VIDEO_DRIVER_X11_XRANDR
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static SDL_bool
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CheckXRandR(Display * display, int *major, int *minor)
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{
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    const char *env;
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    /* Default the extension not available */
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    *major = *minor = 0;
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    /* Allow environment override */
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    env = SDL_GetHint(SDL_HINT_VIDEO_X11_XRANDR);
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#ifdef XRANDR_DISABLED_BY_DEFAULT
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    if (!env || !SDL_atoi(env)) {
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#ifdef X11MODES_DEBUG
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        printf("XRandR disabled by default due to window manager issues\n");
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#endif
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        return SDL_FALSE;
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    }
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#else
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    if (env && !SDL_atoi(env)) {
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#ifdef X11MODES_DEBUG
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        printf("XRandR disabled due to hint\n");
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#endif
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        return SDL_FALSE;
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    }
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#endif /* XRANDR_ENABLED_BY_DEFAULT */
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    if (!SDL_X11_HAVE_XRANDR) {
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#ifdef X11MODES_DEBUG
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        printf("XRandR support not available\n");
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#endif
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        return SDL_FALSE;
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    }
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    /* Query the extension version */
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    if (!X11_XRRQueryVersion(display, major, minor)) {
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#ifdef X11MODES_DEBUG
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        printf("XRandR not active on the display\n");
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#endif
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        return SDL_FALSE;
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    }
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#ifdef X11MODES_DEBUG
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    printf("XRandR available at version %d.%d!\n", *major, *minor);
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#endif
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    return SDL_TRUE;
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}
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#define XRANDR_ROTATION_LEFT    (1 << 1)
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#define XRANDR_ROTATION_RIGHT   (1 << 3)
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static int
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CalculateXRandRRefreshRate(const XRRModeInfo *info)
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{
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    return (info->hTotal
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            && info->vTotal) ? (info->dotClock / (info->hTotal * info->vTotal)) : 0;
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}
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static SDL_bool
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SetXRandRModeInfo(Display *display, XRRScreenResources *res, XRROutputInfo *output_info,
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                  RRMode modeID, SDL_DisplayMode *mode)
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{
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    int i;
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    for (i = 0; i < res->nmode; ++i) {
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        if (res->modes[i].id == modeID) {
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            XRRCrtcInfo *crtc;
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            Rotation rotation = 0;
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            const XRRModeInfo *info = &res->modes[i];
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            crtc = X11_XRRGetCrtcInfo(display, res, output_info->crtc);
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            if (crtc) {
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                rotation = crtc->rotation;
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                X11_XRRFreeCrtcInfo(crtc);
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            }
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            if (rotation & (XRANDR_ROTATION_LEFT|XRANDR_ROTATION_RIGHT)) {
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                mode->w = info->height;
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                mode->h = info->width;
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            } else {
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                mode->w = info->width;
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                mode->h = info->height;
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            }
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            mode->refresh_rate = CalculateXRandRRefreshRate(info);
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            ((SDL_DisplayModeData*)mode->driverdata)->xrandr_mode = modeID;
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#ifdef X11MODES_DEBUG
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            printf("XRandR mode %d: %dx%d@%dHz\n", (int) modeID, mode->w, mode->h, mode->refresh_rate);
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#endif
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            return SDL_TRUE;
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        }
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    }
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    return SDL_FALSE;
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}
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#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
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#if SDL_VIDEO_DRIVER_X11_XVIDMODE
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static SDL_bool
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CheckVidMode(Display * display, int *major, int *minor)
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{
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    const char *env;
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    /* Default the extension not available */
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    *major = *minor = 0;
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    /* Allow environment override */
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    env = SDL_GetHint(SDL_HINT_VIDEO_X11_XVIDMODE);
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    if (env && !SDL_atoi(env)) {
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#ifdef X11MODES_DEBUG
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        printf("XVidMode disabled due to hint\n");
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#endif
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        return SDL_FALSE;
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    }
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   307
    if (!SDL_X11_HAVE_XVIDMODE) {
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#ifdef X11MODES_DEBUG
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        printf("XVidMode support not available\n");
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#endif
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        return SDL_FALSE;
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    }
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    /* Query the extension version */
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    vm_error = -1;
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    if (!X11_XF86VidModeQueryExtension(display, &vm_event, &vm_error)
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        || !X11_XF86VidModeQueryVersion(display, major, minor)) {
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#ifdef X11MODES_DEBUG
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        printf("XVidMode not active on the display\n");
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#endif
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        return SDL_FALSE;
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    }
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#ifdef X11MODES_DEBUG
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    printf("XVidMode available at version %d.%d!\n", *major, *minor);
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#endif
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    return SDL_TRUE;
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}
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static
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Bool XF86VidModeGetModeInfo(Display * dpy, int scr,
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                                       XF86VidModeModeInfo* info)
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{
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    Bool retval;
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    int dotclock;
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    XF86VidModeModeLine l;
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    SDL_zerop(info);
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    SDL_zero(l);
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    retval = X11_XF86VidModeGetModeLine(dpy, scr, &dotclock, &l);
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    info->dotclock = dotclock;
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    info->hdisplay = l.hdisplay;
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    info->hsyncstart = l.hsyncstart;
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    info->hsyncend = l.hsyncend;
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    info->htotal = l.htotal;
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    info->hskew = l.hskew;
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    info->vdisplay = l.vdisplay;
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    info->vsyncstart = l.vsyncstart;
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    info->vsyncend = l.vsyncend;
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    info->vtotal = l.vtotal;
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    info->flags = l.flags;
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    info->privsize = l.privsize;
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    info->private = l.private;
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    return retval;
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   353
}
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   355
static int
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CalculateXVidModeRefreshRate(const XF86VidModeModeInfo * info)
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   357
{
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   358
    return (info->htotal
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   359
            && info->vtotal) ? (1000 * info->dotclock / (info->htotal *
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                                                         info->vtotal)) : 0;
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}
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   362
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   363
SDL_bool
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SetXVidModeModeInfo(const XF86VidModeModeInfo *info, SDL_DisplayMode *mode)
slouken@2873
   365
{
slouken@6548
   366
    mode->w = info->hdisplay;
slouken@6548
   367
    mode->h = info->vdisplay;
slouken@6548
   368
    mode->refresh_rate = CalculateXVidModeRefreshRate(info);
slouken@6548
   369
    ((SDL_DisplayModeData*)mode->driverdata)->vm_mode = *info;
slouken@6548
   370
    return SDL_TRUE;
slouken@2873
   371
}
slouken@6548
   372
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
slouken@2873
   373
slouken@6548
   374
int
slouken@6548
   375
X11_InitModes(_THIS)
slouken@2873
   376
{
slouken@6548
   377
    SDL_VideoData *data = (SDL_VideoData *) _this->driverdata;
slouken@6548
   378
    int screen, screencount;
slouken@6548
   379
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6548
   380
    int xinerama_major, xinerama_minor;
slouken@6548
   381
    int use_xinerama = 0;
slouken@6548
   382
    XineramaScreenInfo *xinerama = NULL;
slouken@6548
   383
#endif
slouken@6548
   384
#if SDL_VIDEO_DRIVER_X11_XRANDR
slouken@6548
   385
    int xrandr_major, xrandr_minor;
slouken@6548
   386
    int use_xrandr = 0;
slouken@6548
   387
    XRRScreenResources *res = NULL;
slouken@6548
   388
#endif
slouken@6548
   389
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
slouken@6548
   390
    int vm_major, vm_minor;
slouken@6548
   391
    int use_vidmode = 0;
slouken@6548
   392
#endif
slouken@2873
   393
slouken@6548
   394
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6548
   395
    /* Query Xinerama extention
slouken@6548
   396
     * NOTE: This works with Nvidia Twinview correctly, but you need version 302.17 (released on June 2012)
slouken@6548
   397
     *       or newer of the Nvidia binary drivers
slouken@6548
   398
     */
slouken@6548
   399
    if (CheckXinerama(data->display, &xinerama_major, &xinerama_minor)) {
icculus@7827
   400
        xinerama = X11_XineramaQueryScreens(data->display, &screencount);
slouken@6548
   401
        if (xinerama) {
slouken@6548
   402
            use_xinerama = xinerama_major * 100 + xinerama_minor;
slouken@2873
   403
        }
slouken@2873
   404
    }
slouken@6548
   405
    if (!xinerama) {
slouken@6548
   406
        screencount = ScreenCount(data->display);
slouken@6548
   407
    }
slouken@6548
   408
#else
slouken@6548
   409
    screencount = ScreenCount(data->display);
slouken@6548
   410
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
slouken@6548
   411
slouken@6548
   412
#if SDL_VIDEO_DRIVER_X11_XRANDR
slouken@6548
   413
    /* require at least XRandR v1.2 */
slouken@6548
   414
    if (CheckXRandR(data->display, &xrandr_major, &xrandr_minor) &&
slouken@6548
   415
        (xrandr_major >= 2 || (xrandr_major == 1 && xrandr_minor >= 2))) {
slouken@6548
   416
        use_xrandr = xrandr_major * 100 + xrandr_minor;
slouken@6548
   417
    }
slouken@6548
   418
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
slouken@6548
   419
slouken@6548
   420
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
slouken@6548
   421
    if (CheckVidMode(data->display, &vm_major, &vm_minor)) {
slouken@6548
   422
        use_vidmode = vm_major * 100 + vm_minor;
slouken@2873
   423
    }
slouken@6548
   424
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
slouken@6548
   425
slouken@6548
   426
    for (screen = 0; screen < screencount; ++screen) {
slouken@6548
   427
        XVisualInfo vinfo;
slouken@6548
   428
        SDL_VideoDisplay display;
slouken@6548
   429
        SDL_DisplayData *displaydata;
slouken@6548
   430
        SDL_DisplayMode mode;
slouken@6548
   431
        SDL_DisplayModeData *modedata;
slouken@6548
   432
        XPixmapFormatValues *pixmapFormats;
slouken@6796
   433
        char display_name[128];
slouken@6548
   434
        int i, n;
slouken@6548
   435
slouken@6548
   436
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6548
   437
        if (xinerama) {
slouken@6548
   438
            if (get_visualinfo(data->display, 0, &vinfo) < 0) {
slouken@6548
   439
                continue;
slouken@6548
   440
            }
slouken@6548
   441
        } else {
slouken@6548
   442
            if (get_visualinfo(data->display, screen, &vinfo) < 0) {
slouken@6548
   443
                continue;
slouken@6548
   444
            }
slouken@6548
   445
        }
slouken@6548
   446
#else
slouken@6548
   447
        if (get_visualinfo(data->display, screen, &vinfo) < 0) {
slouken@6548
   448
            continue;
slouken@6548
   449
        }
slouken@6548
   450
#endif
slouken@6548
   451
slouken@6548
   452
        displaydata = (SDL_DisplayData *) SDL_calloc(1, sizeof(*displaydata));
slouken@6548
   453
        if (!displaydata) {
slouken@6548
   454
            continue;
slouken@6548
   455
        }
slouken@6796
   456
        display_name[0] = '\0';
slouken@6548
   457
slouken@6548
   458
        mode.format = X11_GetPixelFormatFromVisualInfo(data->display, &vinfo);
slouken@6548
   459
        if (SDL_ISPIXELFORMAT_INDEXED(mode.format)) {
slouken@6548
   460
            /* We don't support palettized modes now */
slouken@6548
   461
            SDL_free(displaydata);
slouken@6548
   462
            continue;
slouken@6548
   463
        }
slouken@6548
   464
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6548
   465
        if (xinerama) {
slouken@6548
   466
            mode.w = xinerama[screen].width;
slouken@6548
   467
            mode.h = xinerama[screen].height;
slouken@6548
   468
        } else {
slouken@6548
   469
            mode.w = DisplayWidth(data->display, screen);
slouken@6548
   470
            mode.h = DisplayHeight(data->display, screen);
slouken@6548
   471
        }
slouken@6548
   472
#else
slouken@6548
   473
        mode.w = DisplayWidth(data->display, screen);
slouken@6548
   474
        mode.h = DisplayHeight(data->display, screen);
slouken@6548
   475
#endif
slouken@6548
   476
        mode.refresh_rate = 0;
slouken@6548
   477
slouken@6548
   478
        modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
slouken@6548
   479
        if (!modedata) {
slouken@6548
   480
            SDL_free(displaydata);
slouken@6548
   481
            continue;
slouken@6548
   482
        }
slouken@6548
   483
        mode.driverdata = modedata;
slouken@6548
   484
slouken@6548
   485
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6548
   486
        /* Most of SDL's calls to X11 are unwaware of Xinerama, and to X11 standard calls, when Xinerama is active,
slouken@6548
   487
         * there's only one screen available. So we force the screen number to zero and
slouken@6548
   488
         * let Xinerama specific code handle specific functionality using displaydata->xinerama_info
slouken@6548
   489
         */
slouken@6548
   490
        if (use_xinerama) {
slouken@6548
   491
            displaydata->screen = 0;
slouken@6548
   492
            displaydata->use_xinerama = use_xinerama;
slouken@6548
   493
            displaydata->xinerama_info = xinerama[screen];
slouken@6548
   494
            displaydata->xinerama_screen = screen;
slouken@6548
   495
        }
slouken@6548
   496
        else displaydata->screen = screen;
slouken@6548
   497
#else
slouken@6548
   498
        displaydata->screen = screen;
slouken@6548
   499
#endif
slouken@6548
   500
        displaydata->visual = vinfo.visual;
slouken@6548
   501
        displaydata->depth = vinfo.depth;
slouken@6548
   502
slouken@6548
   503
        displaydata->scanline_pad = SDL_BYTESPERPIXEL(mode.format) * 8;
icculus@7827
   504
        pixmapFormats = X11_XListPixmapFormats(data->display, &n);
slouken@6548
   505
        if (pixmapFormats) {
slouken@6548
   506
            for (i = 0; i < n; ++i) {
slouken@6548
   507
                if (pixmapFormats[i].depth == displaydata->depth) {
slouken@6548
   508
                    displaydata->scanline_pad = pixmapFormats[i].scanline_pad;
slouken@6548
   509
                    break;
slouken@6548
   510
                }
slouken@6548
   511
            }
icculus@7827
   512
            X11_XFree(pixmapFormats);
slouken@6548
   513
        }
slouken@6548
   514
slouken@6548
   515
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6548
   516
        if (use_xinerama) {
slouken@6548
   517
            displaydata->x = xinerama[screen].x_org;
slouken@6548
   518
            displaydata->y = xinerama[screen].y_org;
slouken@6548
   519
        }
slouken@6548
   520
        else
slouken@6548
   521
#endif
slouken@6548
   522
        {
slouken@6548
   523
            displaydata->x = 0;
slouken@6548
   524
            displaydata->y = 0;
slouken@6548
   525
        }
slouken@6548
   526
slouken@6548
   527
#if SDL_VIDEO_DRIVER_X11_XRANDR
slouken@6548
   528
        if (use_xrandr) {
icculus@7827
   529
            res = X11_XRRGetScreenResources(data->display, RootWindow(data->display, displaydata->screen));
slouken@6548
   530
        }
slouken@6548
   531
        if (res) {
slouken@6548
   532
            XRROutputInfo *output_info;
slouken@6548
   533
            XRRCrtcInfo *crtc;
slouken@6548
   534
            int output;
icculus@7827
   535
            Atom EDID = X11_XInternAtom(data->display, "EDID", False);
slouken@6796
   536
            Atom *props;
slouken@6796
   537
            int nprop;
slouken@6796
   538
            unsigned long width_mm;
slouken@6796
   539
            unsigned long height_mm;
slouken@6796
   540
            int inches = 0;
slouken@6548
   541
slouken@6548
   542
            for (output = 0; output < res->noutput; output++) {
icculus@7827
   543
                output_info = X11_XRRGetOutputInfo(data->display, res, res->outputs[output]);
slouken@6550
   544
                if (!output_info || !output_info->crtc ||
slouken@6550
   545
                    output_info->connection == RR_Disconnected) {
icculus@7827
   546
                    X11_XRRFreeOutputInfo(output_info);
slouken@6548
   547
                    continue;
slouken@6548
   548
                }
slouken@6548
   549
slouken@6548
   550
                /* Is this the output that corresponds to the current screen?
slouken@6548
   551
                   We're checking the crtc position, but that may not be a valid test
slouken@6548
   552
                   in all cases.  Anybody want to give this some love?
slouken@6548
   553
                 */
icculus@7827
   554
                crtc = X11_XRRGetCrtcInfo(data->display, res, output_info->crtc);
slouken@7914
   555
                if (!crtc || crtc->x != displaydata->x || crtc->y != displaydata->y ||
slouken@7914
   556
                    crtc->width != mode.w || crtc->height != mode.h) {
icculus@7827
   557
                    X11_XRRFreeOutputInfo(output_info);
icculus@7827
   558
                    X11_XRRFreeCrtcInfo(crtc);
slouken@6548
   559
                    continue;
slouken@6548
   560
                }
slouken@6548
   561
slouken@6548
   562
                displaydata->use_xrandr = use_xrandr;
slouken@6548
   563
                displaydata->xrandr_output = res->outputs[output];
slouken@6548
   564
                SetXRandRModeInfo(data->display, res, output_info, crtc->mode, &mode);
slouken@6548
   565
slouken@6796
   566
                /* Get the name of this display */
slouken@6796
   567
                width_mm = output_info->mm_width;
slouken@6796
   568
                height_mm = output_info->mm_height;
slouken@6796
   569
                inches = (int)((sqrt(width_mm * width_mm +
slouken@6796
   570
                                     height_mm * height_mm) / 25.4f) + 0.5f);
slouken@6796
   571
                SDL_strlcpy(display_name, output_info->name, sizeof(display_name));
slouken@6796
   572
slouken@6796
   573
                /* See if we can get the EDID data for the real monitor name */
icculus@7827
   574
                props = X11_XRRListOutputProperties(data->display, res->outputs[output], &nprop);
slouken@6796
   575
                for (i = 0; i < nprop; ++i) {
slouken@6796
   576
                    unsigned char *prop;
slouken@6796
   577
                    int actual_format;
slouken@6796
   578
                    unsigned long nitems, bytes_after;
slouken@6796
   579
                    Atom actual_type;
slouken@6940
   580
slouken@7191
   581
                    if (props[i] == EDID) {
icculus@7827
   582
                        if (X11_XRRGetOutputProperty(data->display,
slouken@6940
   583
                                                 res->outputs[output], props[i],
slouken@6940
   584
                                                 0, 100, False, False,
slouken@6940
   585
                                                 AnyPropertyType,
slouken@6940
   586
                                                 &actual_type, &actual_format,
slouken@6940
   587
                                                 &nitems, &bytes_after, &prop) == Success ) {
slouken@6940
   588
                            MonitorInfo *info = decode_edid(prop);
slouken@6940
   589
                            if (info) {
slouken@6940
   590
    #ifdef X11MODES_DEBUG
slouken@6940
   591
                                printf("Found EDID data for %s\n", output_info->name);
slouken@6940
   592
                                dump_monitor_info(info);
slouken@6940
   593
    #endif
slouken@6940
   594
                                SDL_strlcpy(display_name, info->dsc_product_name, sizeof(display_name));
slouken@6940
   595
                                free(info);
slouken@6940
   596
                            }
icculus@7827
   597
                            X11_XFree(prop);
slouken@6796
   598
                        }
slouken@6796
   599
                        break;
slouken@6796
   600
                    }
slouken@6796
   601
                }
slouken@6940
   602
                if (props) {
icculus@7827
   603
                    X11_XFree(props);
slouken@6940
   604
                }
slouken@6796
   605
slouken@6796
   606
                if (*display_name && inches) {
slouken@6796
   607
                    size_t len = SDL_strlen(display_name);
slouken@6796
   608
                    SDL_snprintf(&display_name[len], sizeof(display_name)-len, " %d\"", inches);
slouken@6796
   609
                }
slouken@6796
   610
#ifdef X11MODES_DEBUG
slouken@6796
   611
                printf("Display name: %s\n", display_name);
slouken@6796
   612
#endif
slouken@6796
   613
icculus@7827
   614
                X11_XRRFreeOutputInfo(output_info);
icculus@7827
   615
                X11_XRRFreeCrtcInfo(crtc);
slouken@6548
   616
                break;
slouken@6548
   617
            }
slouken@6548
   618
#ifdef X11MODES_DEBUG
slouken@6548
   619
            if (output == res->noutput) {
slouken@6548
   620
                printf("Couldn't find XRandR CRTC at %d,%d\n", displaydata->x, displaydata->y);
slouken@6548
   621
            }
slouken@6548
   622
#endif
icculus@7827
   623
            X11_XRRFreeScreenResources(res);
slouken@6548
   624
        }
slouken@6548
   625
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
slouken@6548
   626
slouken@6548
   627
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
slouken@6548
   628
        if (!displaydata->use_xrandr &&
slouken@6548
   629
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6564
   630
            /* XVidMode only works on the screen at the origin */
slouken@6564
   631
            (!displaydata->use_xinerama ||
slouken@6564
   632
             (displaydata->x == 0 && displaydata->y == 0)) &&
slouken@6548
   633
#endif
slouken@6548
   634
            use_vidmode) {
slouken@6548
   635
            displaydata->use_vidmode = use_vidmode;
slouken@6565
   636
            if (displaydata->use_xinerama) {
slouken@6565
   637
                displaydata->vidmode_screen = 0;
slouken@6565
   638
            } else {
slouken@6565
   639
                displaydata->vidmode_screen = screen;
slouken@6565
   640
            }
slouken@6565
   641
            XF86VidModeGetModeInfo(data->display, displaydata->vidmode_screen, &modedata->vm_mode);
slouken@6548
   642
        }
slouken@6548
   643
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
slouken@6548
   644
slouken@6548
   645
        SDL_zero(display);
slouken@6796
   646
        if (*display_name) {
slouken@6796
   647
            display.name = display_name;
slouken@6796
   648
        }
slouken@6548
   649
        display.desktop_mode = mode;
slouken@6548
   650
        display.current_mode = mode;
slouken@6548
   651
        display.driverdata = displaydata;
slouken@6548
   652
        SDL_AddVideoDisplay(&display);
slouken@6548
   653
    }
slouken@6548
   654
slouken@6548
   655
#if SDL_VIDEO_DRIVER_X11_XINERAMA
icculus@7827
   656
    if (xinerama) X11_XFree(xinerama);
slouken@6548
   657
#endif
slouken@6548
   658
slouken@6548
   659
    if (_this->num_displays == 0) {
icculus@7037
   660
        return SDL_SetError("No available displays");
slouken@6548
   661
    }
slouken@6548
   662
    return 0;
slouken@2873
   663
}
slouken@2873
   664
slouken@1950
   665
void
slouken@3500
   666
X11_GetDisplayModes(_THIS, SDL_VideoDisplay * sdl_display)
slouken@1950
   667
{
slouken@2870
   668
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
slouken@3500
   669
    SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
slouken@5408
   670
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
slouken@2873
   671
    int nmodes;
slouken@5408
   672
    XF86VidModeModeInfo ** modes;
slouken@2873
   673
#endif
slouken@2873
   674
    int screen_w;
slouken@2873
   675
    int screen_h;
slouken@1950
   676
    SDL_DisplayMode mode;
slouken@6548
   677
    SDL_DisplayModeData *modedata;
slouken@2870
   678
slouken@2873
   679
    /* Unfortunately X11 requires the window to be created with the correct
slouken@2873
   680
     * visual and depth ahead of time, but the SDL API allows you to create
slouken@2873
   681
     * a window before setting the fullscreen display mode.  This means that
slouken@2873
   682
     * we have to use the same format for all windows and all display modes.
slouken@2873
   683
     * (or support recreating the window with a new visual behind the scenes)
slouken@2873
   684
     */
slouken@3500
   685
    mode.format = sdl_display->current_mode.format;
slouken@2873
   686
    mode.driverdata = NULL;
slouken@2873
   687
slouken@2873
   688
    screen_w = DisplayWidth(display, data->screen);
slouken@2873
   689
    screen_h = DisplayHeight(display, data->screen);
slouken@2873
   690
slouken@2873
   691
#if SDL_VIDEO_DRIVER_X11_XINERAMA
gabomdq@6331
   692
    if (data->use_xinerama) {
david@7361
   693
        if (data->use_vidmode && !data->xinerama_info.x_org && !data->xinerama_info.y_org &&
gabomdq@6331
   694
           (screen_w > data->xinerama_info.width || screen_h > data->xinerama_info.height)) {
david@7361
   695
            /* Add the full (both screens combined) xinerama mode only on the display that starts at 0,0
david@7361
   696
             * if we're using vidmode.
david@7361
   697
             */
gabomdq@6331
   698
            mode.w = screen_w;
gabomdq@6331
   699
            mode.h = screen_h;
slouken@2873
   700
            mode.refresh_rate = 0;
slouken@6548
   701
            modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
slouken@6548
   702
            if (modedata) {
slouken@6548
   703
                *modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
slouken@6548
   704
            }
slouken@6548
   705
            mode.driverdata = modedata;
slouken@3500
   706
            SDL_AddDisplayMode(sdl_display, &mode);
slouken@2873
   707
        }
david@7431
   708
        else if (!data->use_xrandr)
david@7361
   709
        {
david@7431
   710
            /* Add the current mode of each monitor otherwise if we can't get them from xrandr */
david@7361
   711
            mode.w = data->xinerama_info.width;
david@7361
   712
            mode.h = data->xinerama_info.height;
david@7361
   713
            mode.refresh_rate = 0;
david@7361
   714
            modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
david@7361
   715
            if (modedata) {
david@7361
   716
                *modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
david@7361
   717
            }
david@7361
   718
            mode.driverdata = modedata;
david@7361
   719
            SDL_AddDisplayMode(sdl_display, &mode);
david@7361
   720
        }
david@7361
   721
slouken@2873
   722
    }
slouken@2873
   723
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
slouken@2873
   724
slouken@2873
   725
#if SDL_VIDEO_DRIVER_X11_XRANDR
slouken@6548
   726
    if (data->use_xrandr) {
slouken@6548
   727
        XRRScreenResources *res;
slouken@2873
   728
icculus@7827
   729
        res = X11_XRRGetScreenResources (display, RootWindow(display, data->screen));
slouken@6548
   730
        if (res) {
slouken@6548
   731
            SDL_DisplayModeData *modedata;
slouken@6548
   732
            XRROutputInfo *output_info;
slouken@6548
   733
            int i;
slouken@2873
   734
icculus@7827
   735
            output_info = X11_XRRGetOutputInfo(display, res, data->xrandr_output);
slouken@6548
   736
            if (output_info && output_info->connection != RR_Disconnected) {
slouken@6548
   737
                for (i = 0; i < output_info->nmode; ++i) {
slouken@6548
   738
                    modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
slouken@6548
   739
                    if (!modedata) {
slouken@6548
   740
                        continue;
slouken@6548
   741
                    }
slouken@6548
   742
                    mode.driverdata = modedata;
slouken@2873
   743
slouken@6548
   744
                    if (SetXRandRModeInfo(display, res, output_info, output_info->modes[i], &mode)) {
slouken@6548
   745
                        SDL_AddDisplayMode(sdl_display, &mode);
slouken@6548
   746
                    } else {
slouken@6548
   747
                        SDL_free(modedata);
slouken@6548
   748
                    }
slouken@2873
   749
                }
slouken@2873
   750
            }
icculus@7827
   751
            X11_XRRFreeOutputInfo(output_info);
icculus@7827
   752
            X11_XRRFreeScreenResources(res);
slouken@2873
   753
        }
slouken@6548
   754
        return;
slouken@2873
   755
    }
slouken@2873
   756
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
slouken@2873
   757
slouken@5408
   758
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
slouken@6548
   759
    if (data->use_vidmode &&
icculus@7827
   760
        X11_XF86VidModeGetAllModeLines(display, data->vidmode_screen, &nmodes, &modes)) {
slouken@2873
   761
        int i;
slouken@2873
   762
slouken@2873
   763
#ifdef X11MODES_DEBUG
slouken@2873
   764
        printf("VidMode modes: (unsorted)\n");
slouken@2873
   765
        for (i = 0; i < nmodes; ++i) {
slouken@6566
   766
            printf("Mode %d: %d x %d @ %d, flags: 0x%x\n", i,
slouken@2874
   767
                   modes[i]->hdisplay, modes[i]->vdisplay,
slouken@6566
   768
                   CalculateXVidModeRefreshRate(modes[i]), modes[i]->flags);
slouken@2873
   769
        }
slouken@2873
   770
#endif
slouken@2873
   771
        for (i = 0; i < nmodes; ++i) {
slouken@6548
   772
            modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
slouken@6548
   773
            if (!modedata) {
slouken@6548
   774
                continue;
slouken@6548
   775
            }
slouken@6548
   776
            mode.driverdata = modedata;
slouken@6548
   777
slouken@6548
   778
            if (SetXVidModeModeInfo(modes[i], &mode)) {
slouken@6548
   779
                SDL_AddDisplayMode(sdl_display, &mode);
slouken@6548
   780
            } else {
slouken@6548
   781
                SDL_free(modedata);
slouken@6548
   782
            }
slouken@2873
   783
        }
icculus@7827
   784
        X11_XFree(modes);
slouken@6548
   785
        return;
slouken@2873
   786
    }
slouken@5408
   787
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
slouken@2873
   788
slouken@2873
   789
    if (!data->use_xrandr && !data->use_vidmode) {
slouken@6548
   790
        /* Add the desktop mode */
slouken@6548
   791
        mode = sdl_display->desktop_mode;
slouken@6548
   792
        modedata = (SDL_DisplayModeData *) SDL_calloc(1, sizeof(SDL_DisplayModeData));
slouken@6548
   793
        if (modedata) {
slouken@6548
   794
            *modedata = *(SDL_DisplayModeData *)sdl_display->desktop_mode.driverdata;
slouken@6548
   795
        }
slouken@6548
   796
        mode.driverdata = modedata;
slouken@3500
   797
        SDL_AddDisplayMode(sdl_display, &mode);
slouken@2874
   798
    }
slouken@1950
   799
}
slouken@1950
   800
slouken@1950
   801
int
slouken@3500
   802
X11_SetDisplayMode(_THIS, SDL_VideoDisplay * sdl_display, SDL_DisplayMode * mode)
slouken@1950
   803
{
slouken@2873
   804
    Display *display = ((SDL_VideoData *) _this->driverdata)->display;
slouken@3500
   805
    SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
slouken@6548
   806
    SDL_DisplayModeData *modedata = (SDL_DisplayModeData *)mode->driverdata;
slouken@2873
   807
slouken@6548
   808
#if SDL_VIDEO_DRIVER_X11_XRANDR
slouken@6548
   809
    if (data->use_xrandr) {
slouken@6548
   810
        XRRScreenResources *res;
slouken@6548
   811
        XRROutputInfo *output_info;
slouken@6548
   812
        XRRCrtcInfo *crtc;
slouken@6548
   813
        Status status;
slouken@6548
   814
icculus@7827
   815
        res = X11_XRRGetScreenResources (display, RootWindow(display, data->screen));
slouken@6548
   816
        if (!res) {
icculus@7037
   817
            return SDL_SetError("Couldn't get XRandR screen resources");
slouken@6548
   818
        }
slouken@6548
   819
icculus@7827
   820
        output_info = X11_XRRGetOutputInfo(display, res, data->xrandr_output);
slouken@6548
   821
        if (!output_info || output_info->connection == RR_Disconnected) {
icculus@7827
   822
            X11_XRRFreeScreenResources(res);
icculus@7037
   823
            return SDL_SetError("Couldn't get XRandR output info");
slouken@6548
   824
        }
slouken@6548
   825
icculus@7827
   826
        crtc = X11_XRRGetCrtcInfo(display, res, output_info->crtc);
slouken@6548
   827
        if (!crtc) {
icculus@7827
   828
            X11_XRRFreeOutputInfo(output_info);
icculus@7827
   829
            X11_XRRFreeScreenResources(res);
icculus@7037
   830
            return SDL_SetError("Couldn't get XRandR crtc info");
slouken@6548
   831
        }
slouken@6548
   832
icculus@7827
   833
        status = X11_XRRSetCrtcConfig (display, res, output_info->crtc, CurrentTime,
slouken@6548
   834
          crtc->x, crtc->y, modedata->xrandr_mode, crtc->rotation,
slouken@6548
   835
          &data->xrandr_output, 1);
slouken@6548
   836
icculus@7827
   837
        X11_XRRFreeCrtcInfo(crtc);
icculus@7827
   838
        X11_XRRFreeOutputInfo(output_info);
icculus@7827
   839
        X11_XRRFreeScreenResources(res);
slouken@6548
   840
slouken@6548
   841
        if (status != Success) {
icculus@7827
   842
            return SDL_SetError("X11_XRRSetCrtcConfig failed");
slouken@6548
   843
        }
slouken@6548
   844
    }
slouken@6548
   845
#endif /* SDL_VIDEO_DRIVER_X11_XRANDR */
slouken@6548
   846
slouken@6548
   847
#if SDL_VIDEO_DRIVER_X11_XVIDMODE
slouken@6548
   848
    if (data->use_vidmode) {
icculus@7827
   849
        X11_XF86VidModeSwitchToMode(display, data->vidmode_screen, &modedata->vm_mode);
slouken@6548
   850
    }
slouken@6548
   851
#endif /* SDL_VIDEO_DRIVER_X11_XVIDMODE */
slouken@6548
   852
slouken@2873
   853
    return 0;
slouken@1950
   854
}
slouken@1950
   855
slouken@1950
   856
void
slouken@1950
   857
X11_QuitModes(_THIS)
slouken@1950
   858
{
slouken@1950
   859
}
slouken@1950
   860
gabomdq@6331
   861
int
gabomdq@6331
   862
X11_GetDisplayBounds(_THIS, SDL_VideoDisplay * sdl_display, SDL_Rect * rect)
gabomdq@6331
   863
{
gabomdq@6331
   864
    SDL_DisplayData *data = (SDL_DisplayData *) sdl_display->driverdata;
slouken@6502
   865
slouken@6548
   866
    rect->x = data->x;
slouken@6548
   867
    rect->y = data->y;
slouken@6548
   868
    rect->w = sdl_display->current_mode.w;
slouken@6548
   869
    rect->h = sdl_display->current_mode.h;
gabomdq@6331
   870
gabomdq@6331
   871
#if SDL_VIDEO_DRIVER_X11_XINERAMA
slouken@6548
   872
    /* Get the real current bounds of the display */
slouken@6502
   873
    if (data->use_xinerama) {
icculus@7485
   874
        Display *display = ((SDL_VideoData *) _this->driverdata)->display;
slouken@6548
   875
        int screencount;
icculus@7827
   876
        XineramaScreenInfo *xinerama = X11_XineramaQueryScreens(display, &screencount);
slouken@6548
   877
        if (xinerama) {
slouken@6548
   878
            rect->x = xinerama[data->xinerama_screen].x_org;
slouken@6548
   879
            rect->y = xinerama[data->xinerama_screen].y_org;
icculus@7827
   880
            X11_XFree(xinerama);
slouken@6548
   881
        }
gabomdq@6331
   882
    }
slouken@6548
   883
#endif /* SDL_VIDEO_DRIVER_X11_XINERAMA */
slouken@6475
   884
    return 0;
gabomdq@6331
   885
}
gabomdq@6331
   886
slouken@5481
   887
#endif /* SDL_VIDEO_DRIVER_X11 */
slouken@5481
   888
slouken@1950
   889
/* vi: set ts=4 sw=4 expandtab: */