/*

    SDL - Simple DirectMedia Layer

    This library is free software; you can redistribute it and/or

    modify it under the terms of the GNU Lesser General Public

    License as published by the Free Software Foundation; either

    version 2.1 of the License, or (at your option) any later version.

    This library is distributed in the hope that it will be useful,

    but WITHOUT ANY WARRANTY; without even the implied warranty of

    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

    Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public

    License along with this library; if not, write to the Free Software

    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA

    Sam Lantinga

    slouken@libsdl.org

*/

#include "SDL_config.h"

#include "SDL_x11video.h"

static int

get_visualinfo(Display * display, int screen, XVisualInfo * vinfo)

{

    const char *visual_id = SDL_getenv("SDL_VIDEO_X11_VISUALID");

    int use_directcolor = 1;

    int depth;

    /* Look for an exact visual, if requested */

    if (visual_id) {

        XVisualInfo *vi, template;

        int nvis;

        SDL_zero(template);

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

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

        if (vi) {

            *vinfo = *vi;

            XFree(vi);

            return 0;

        }

    }

    depth = DefaultDepth(display, screen);

    if ((use_directcolor &&

         XMatchVisualInfo(display, screen, depth, DirectColor, vinfo)) ||

        XMatchVisualInfo(display, screen, depth, TrueColor, vinfo) ||

        XMatchVisualInfo(display, screen, depth, PseudoColor, vinfo) ||

        XMatchVisualInfo(display, screen, depth, StaticColor, vinfo)) {

        return 0;

    }

    return -1;

}

void

X11_InitModes(_THIS)

{

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

    int screen;

    int n;

    XPixmapFormatValues *p;

    p = XListPixmapFormats(data->display, &n);

    for (screen = 0; screen < ScreenCount(data->display); ++screen) {

        XVisualInfo vinfo;

        int i, bpp;

        Uint32 Rmask, Gmask, Bmask, Amask;

        SDL_VideoDisplay display;

        SDL_DisplayData *displaydata;

        SDL_DisplayMode mode;

        if (get_visualinfo(data->display, screen, &vinfo) < 0) {

            continue;

        }

        bpp = vinfo.depth;

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

            if (p[i].depth == vinfo.depth) {

                bpp = p[i].bits_per_pixel;

                break;

            }

        }

        Rmask = vinfo.visual->red_mask;

        Gmask = vinfo.visual->green_mask;

        Bmask = vinfo.visual->blue_mask;

        if (vinfo.depth == 32) {

            Amask = (0xFFFFFFFF & ~(Rmask | Gmask | Bmask));

        } else {

            Amask = 0;

        }

        mode.format =

            SDL_MasksToPixelFormatEnum(bpp, Rmask, Gmask, Bmask, Amask);

        mode.w = DisplayWidth(data->display, screen);

        mode.h = DisplayHeight(data->display, screen);

        mode.refresh_rate = 0;

        mode.driverdata = NULL;

        displaydata = (SDL_DisplayData *) SDL_malloc(sizeof(*displaydata));

        if (!displaydata) {

            continue;

        }

        displaydata->screen = screen;

        displaydata->visual = vinfo.visual;

        displaydata->depth = vinfo.depth;

        SDL_zero(display);

        display.desktop_mode = mode;

        display.current_mode = mode;

        display.driverdata = displaydata;

        SDL_AddVideoDisplay(&display);

    }

    XFree(p);

}

void

X11_GetDisplayModes(_THIS)

{

    SDL_DisplayData *data = (SDL_DisplayData *) SDL_CurrentDisplay.driverdata;

    SDL_DisplayMode mode;

    //SDL_AddDisplayMode(_this->current_display, &mode);

}

int

X11_SetDisplayMode(_THIS, SDL_DisplayMode * mode)

{

    //SDL_DisplayModeData *data = (SDL_DisplayModeData *) mode->driverdata;

    return -1;

}

void

X11_QuitModes(_THIS)

{

}

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