x11_common.c

来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 2,222 行 · 第 1/5 页

        DPMSInfo(mDisplay, &state, &onoff);
        if (onoff)
        {
            Status stat;

            mp_msg(MSGT_VO, MSGL_V, "Disabling DPMS\n");
            dpms_disabled = 1;
            stat = DPMSDisable(mDisplay);       // monitor powersave off
            mp_msg(MSGT_VO, MSGL_V, "DPMSDisable stat: %d\n", stat);
        }
    }
#endif
    if (!timeout_save)
    {
        XGetScreenSaver(mDisplay, &timeout_save, &interval, &prefer_blank,
                        &allow_exp);
        if (timeout_save)
            XSetScreenSaver(mDisplay, 0, interval, prefer_blank,
                            allow_exp);
    }
    // turning off screensaver
    if (stop_xscreensaver)
        xscreensaver_disable(mDisplay);
    if (stop_xscreensaver && !kdescreensaver_was_running)
    {
        kdescreensaver_was_running =
            (system
             ("dcop kdesktop KScreensaverIface isEnabled 2>/dev/null | sed 's/1/true/g' | grep true 2>/dev/null >/dev/null")
             == 0);
        if (kdescreensaver_was_running)
            system
                ("dcop kdesktop KScreensaverIface enable false 2>/dev/null >/dev/null");
    }
}

static XErrorHandler old_handler = NULL;
static int selectinput_err = 0;
static int x11_selectinput_errorhandler(Display * display,
                                        XErrorEvent * event)
{
    if (event->error_code == BadAccess)
    {
        selectinput_err = 1;
        mp_msg(MSGT_VO, MSGL_ERR,
               "X11 error: BadAccess during XSelectInput Call\n");
        mp_msg(MSGT_VO, MSGL_ERR,
               "X11 error: The 'ButtonPressMask' mask of specified window has probably already used by another appication (see man XSelectInput)\n");
        /* If you think MPlayer should shutdown with this error,
         * comment out the following line */
        return 0;
    }
    if (old_handler != NULL)
        old_handler(display, event);
    else
        x11_errorhandler(display, event);
    return 0;
}

void vo_x11_selectinput_witherr(Display * display, Window w,
                                long event_mask)
{
    XSync(display, False);
    old_handler = XSetErrorHandler(x11_selectinput_errorhandler);
    selectinput_err = 0;
    if (vo_nomouse_input)
    {
        XSelectInput(display, w,
                     event_mask &
                     (~(ButtonPressMask | ButtonReleaseMask)));
    } else
    {
        XSelectInput(display, w, event_mask);
    }
    XSync(display, False);
    XSetErrorHandler(old_handler);
    if (selectinput_err)
    {
        mp_msg(MSGT_VO, MSGL_ERR,
               "X11 error: MPlayer discards mouse control (reconfiguring)\n");
        XSelectInput(display, w,
                     event_mask &
                     (~
                      (ButtonPressMask | ButtonReleaseMask |
                       PointerMotionMask)));
    }
}

#ifdef HAVE_XF86VM
void vo_vm_switch(uint32_t X, uint32_t Y, int *modeline_width,
                  int *modeline_height)
{
    int vm_event, vm_error;
    int vm_ver, vm_rev;
    int i, j, have_vm = 0;

    int modecount;

    if (XF86VidModeQueryExtension(mDisplay, &vm_event, &vm_error))
    {
        XF86VidModeQueryVersion(mDisplay, &vm_ver, &vm_rev);
        mp_msg(MSGT_VO, MSGL_V, "XF86VidMode extension v%i.%i\n", vm_ver,
               vm_rev);
        have_vm = 1;
    } else
        mp_msg(MSGT_VO, MSGL_WARN,
               "XF86VidMode extension not available.\n");

    if (have_vm)
    {
        if (vidmodes == NULL)
            XF86VidModeGetAllModeLines(mDisplay, mScreen, &modecount,
                                       &vidmodes);
        j = 0;
        *modeline_width = vidmodes[0]->hdisplay;
        *modeline_height = vidmodes[0]->vdisplay;

        for (i = 1; i < modecount; i++)
            if ((vidmodes[i]->hdisplay >= X)
                && (vidmodes[i]->vdisplay >= Y))
                if ((vidmodes[i]->hdisplay <= *modeline_width)
                    && (vidmodes[i]->vdisplay <= *modeline_height))
                {
                    *modeline_width = vidmodes[i]->hdisplay;
                    *modeline_height = vidmodes[i]->vdisplay;
                    j = i;
                }

        mp_msg(MSGT_VO, MSGL_INFO, MSGTR_SelectedVideoMode,
               *modeline_width, *modeline_height, X, Y);
        XF86VidModeLockModeSwitch(mDisplay, mScreen, 0);
        XF86VidModeSwitchToMode(mDisplay, mScreen, vidmodes[j]);
        XF86VidModeSwitchToMode(mDisplay, mScreen, vidmodes[j]);
        X = (vo_screenwidth - *modeline_width) / 2;
        Y = (vo_screenheight - *modeline_height) / 2;
        XF86VidModeSetViewPort(mDisplay, mScreen, X, Y);
    }
}

void vo_vm_close(Display * dpy)
{
#ifdef HAVE_NEW_GUI
    if (vidmodes != NULL && vo_window != None)
#else
    if (vidmodes != NULL)
#endif
    {
        int i, modecount;
        int screen;

        screen = DefaultScreen(dpy);

        free(vidmodes);
        vidmodes = NULL;
        XF86VidModeGetAllModeLines(mDisplay, mScreen, &modecount,
                                   &vidmodes);
        for (i = 0; i < modecount; i++)
            if ((vidmodes[i]->hdisplay == vo_screenwidth)
                && (vidmodes[i]->vdisplay == vo_screenheight))
            {
                mp_msg(MSGT_VO, MSGL_INFO,
                       "Returning to original mode %dx%d\n",
                       vo_screenwidth, vo_screenheight);
                break;
            }

        XF86VidModeSwitchToMode(dpy, screen, vidmodes[i]);
        XF86VidModeSwitchToMode(dpy, screen, vidmodes[i]);
        free(vidmodes);
        vidmodes = NULL;
    }
}
#endif

#endif                          /* X11_FULLSCREEN */


/*
 * Scan the available visuals on this Display/Screen.  Try to find
 * the 'best' available TrueColor visual that has a decent color
 * depth (at least 15bit).  If there are multiple visuals with depth
 * >= 15bit, we prefer visuals with a smaller color depth.
 */
int vo_find_depth_from_visuals(Display * dpy, int screen,
                               Visual ** visual_return)
{
    XVisualInfo visual_tmpl;
    XVisualInfo *visuals;
    int nvisuals, i;
    int bestvisual = -1;
    int bestvisual_depth = -1;

    visual_tmpl.screen = screen;
    visual_tmpl.class = TrueColor;
    visuals = XGetVisualInfo(dpy,
                             VisualScreenMask | VisualClassMask,
                             &visual_tmpl, &nvisuals);
    if (visuals != NULL)
    {
        for (i = 0; i < nvisuals; i++)
        {
            mp_msg(MSGT_VO, MSGL_V,
                   "vo: X11 truecolor visual %#lx, depth %d, R:%lX G:%lX B:%lX\n",
                   visuals[i].visualid, visuals[i].depth,
                   visuals[i].red_mask, visuals[i].green_mask,
                   visuals[i].blue_mask);
            /*
             * Save the visual index and its depth, if this is the first
             * truecolor visul, or a visual that is 'preferred' over the
             * previous 'best' visual.
             */
            if (bestvisual_depth == -1
                || (visuals[i].depth >= 15
                    && (visuals[i].depth < bestvisual_depth
                        || bestvisual_depth < 15)))
            {
                bestvisual = i;
                bestvisual_depth = visuals[i].depth;
            }
        }

        if (bestvisual != -1 && visual_return != NULL)
            *visual_return = visuals[bestvisual].visual;

        XFree(visuals);
    }
    return bestvisual_depth;
}


static Colormap cmap = None;
static XColor cols[256];
static int cm_size, red_mask, green_mask, blue_mask;


Colormap vo_x11_create_colormap(XVisualInfo * vinfo)
{
    unsigned k, r, g, b, ru, gu, bu, m, rv, gv, bv, rvu, gvu, bvu;

    if (vinfo->class != DirectColor)
        return XCreateColormap(mDisplay, mRootWin, vinfo->visual,
                               AllocNone);

    /* can this function get called twice or more? */
    if (cmap)
        return cmap;
    cm_size = vinfo->colormap_size;
    red_mask = vinfo->red_mask;
    green_mask = vinfo->green_mask;
    blue_mask = vinfo->blue_mask;
    ru = (red_mask & (red_mask - 1)) ^ red_mask;
    gu = (green_mask & (green_mask - 1)) ^ green_mask;
    bu = (blue_mask & (blue_mask - 1)) ^ blue_mask;
    rvu = 65536ull * ru / (red_mask + ru);
    gvu = 65536ull * gu / (green_mask + gu);
    bvu = 65536ull * bu / (blue_mask + bu);
    r = g = b = 0;
    rv = gv = bv = 0;
    m = DoRed | DoGreen | DoBlue;
    for (k = 0; k < cm_size; k++)
    {
        int t;

        cols[k].pixel = r | g | b;
        cols[k].red = rv;
        cols[k].green = gv;
        cols[k].blue = bv;
        cols[k].flags = m;
        t = (r + ru) & red_mask;
        if (t < r)
            m &= ~DoRed;
        r = t;
        t = (g + gu) & green_mask;
        if (t < g)
            m &= ~DoGreen;
        g = t;
        t = (b + bu) & blue_mask;
        if (t < b)
            m &= ~DoBlue;
        b = t;
        rv += rvu;
        gv += gvu;
        bv += bvu;
    }
    cmap = XCreateColormap(mDisplay, mRootWin, vinfo->visual, AllocAll);
    XStoreColors(mDisplay, cmap, cols, cm_size);
    return cmap;
}

/*
 * Via colormaps/gamma ramps we can do gamma, brightness, contrast,
 * hue and red/green/blue intensity, but we cannot do saturation.
 * Currently only gamma, brightness and contrast are implemented.
 * Is there sufficient interest for hue and/or red/green/blue intensity?
 */
/* these values have range [-100,100] and are initially 0 */
static int vo_gamma = 0;
static int vo_brightness = 0;
static int vo_contrast = 0;


uint32_t vo_x11_set_equalizer(char *name, int value)
{
    float gamma, brightness, contrast;
    float rf, gf, bf;
    int k;

    /*
     * IMPLEMENTME: consider using XF86VidModeSetGammaRamp in the case
     * of TrueColor-ed window but be careful:
     * Unlike the colormaps, which are private for the X client
     * who created them and thus automatically destroyed on client
     * disconnect, this gamma ramp is a system-wide (X-server-wide)
     * setting and _must_ be restored before the process exits.
     * Unforunately when the process crashes (or gets killed
     * for some reason) it is impossible to restore the setting,
     * and such behaviour could be rather annoying for the users.
     */
    if (cmap == None)
        return VO_NOTAVAIL;

    if (!strcasecmp(name, "brightness"))
        vo_brightness = value;
    else if (!strcasecmp(name, "contrast"))
        vo_contrast = value;
    else if (!strcasecmp(name, "gamma"))
        vo_gamma = value;
    else
        return VO_NOTIMPL;

    brightness = 0.01 * vo_brightness;
    contrast = tan(0.0095 * (vo_contrast + 100) * M_PI / 4);
    gamma = pow(2, -0.02 * vo_gamma);

    rf = (float) ((red_mask & (red_mask - 1)) ^ red_mask) / red_mask;
    gf = (float) ((green_mask & (green_mask - 1)) ^ green_mask) /
        green_mask;
    bf = (float) ((blue_mask & (blue_mask - 1)) ^ blue_mask) / blue_mask;

    /* now recalculate the colormap using the newly set value */
    for (k = 0; k < cm_size; k++)
    {
        float s;

        s = pow(rf * k, gamma);
        s = (s - 0.5) * contrast + 0.5;
        s += brightness;
        if (s < 0)
            s = 0;
        if (s > 1)
            s = 1;
        cols[k].red = (unsigned short) (s * 65535);

        s = pow(gf * k, gamma);
        s = (s - 0.5) * contrast + 0.5;
        s += brightness;
        if (s < 0)
            s = 0;
        if (s > 1)
            s = 1;
        cols[k].green = (unsigned short) (s * 65535);

        s = pow(bf * k, gamma);
        s = (s - 0.5) * contrast + 0.5;
        s += brightness;
        if (s < 0)
            s = 0;
        if (s > 1)
            s = 1;
        cols[k].blue = (unsigned short) (s * 65535);
    }

    XStoreColors(mDisplay, cmap, cols, cm_size);
    XFlush(mDisplay);
    return VO_TRUE;
}

uint32_t vo_x11_get_equalizer(char *name, int *value)
{
    if (cmap == None)
        return VO_NOTAVAIL;
    if (!strcasecmp(name, "brightness"))
        *value = vo_brightness;
    else if (!strcasecmp(name, "contrast"))
        *value = vo_contrast;
    else if (!strcasecmp(name, "gamma"))
        *value = vo_gamma;
    else
        return VO_NOTIMPL;
    return VO_TRUE;
}

#ifdef HAVE_XV
int vo_xv_set_eq(uint32_t xv_port, char *name, int value)
{
    XvAttribute *attributes;
    int i, howmany, xv_atom;

    mp_dbg(MSGT_VO, MSGL_V, "xv_set_eq called! (%s, %d)\n", name, value);

    /* get available attributes */
    attributes = XvQueryPortAttributes(mDisplay, xv_port, &howmany);
    for (i = 0; i < howmany && attributes; i++)
        if (attributes[i].flags & XvSettable)
        {
            xv_atom = XInternAtom(mDisplay, attributes[i].name, True);
/* since we have SET_DEFAULTS first in our list, we can check if it's available
   then trigger it if it's ok so that the other values are at default upon query */
            if (xv_atom != None)
            {
                int hue = 0, port_value, port_min, port_max;

                if (!strcmp(attributes[i].name, "XV_BRIGHTNESS") &&
                    (!strcasecmp(name, "brightness")))
                    port_value = value;
                else if (!strcmp(attributes[i].name, "XV_CONTRAST") &&
                         (!strcasecmp(name, "contrast")))
                    port_value = value;
                else if (!strcmp(attributes[i].name, "XV_SATURATION") &&
                         (!strcasecmp(name, "saturation")))
                    port_value = value;
                else if (!strcmp(attributes[i].name, "XV_HUE") &&
                         (!strcasecmp(name, "hue")))
                {
                    port_value = value;
                    hue = 1;
                } else
                    /* Note: since 22.01.2002 GATOS supports these attrs for radeons (NK) */
                if (!strcmp(attributes[i].name, "XV_RED_INTENSITY") &&
                        (!strcasecmp(name, "red_intensity")))
                    port_value = value;
                else if (!strcmp(attributes[i].name, "XV_GREEN_INTENSITY")
                         && (!strcasecmp(name, "green_intensity")))
                    port_value = value;
                else if (!strcmp(attributes[i].name, "XV_BLUE_INTENSITY")
                         && (!strcasecmp(name, "blue_intensity")))
                    port_value = value;
                else
                    continue;

                port_min = attributes[i].min_value;
                po