mmsfbmanager.cpp

Go to the documentation of this file.

/***************************************************************************
 *   Copyright (C) 2005-2007 Stefan Schwarzer, Jens Schneider,             *
 *                           Matthias Hardt, Guido Madaus                  *
 *                                                                         *
 *   Copyright (C) 2007-2008 BerLinux Solutions GbR                        *
 *                           Stefan Schwarzer & Guido Madaus               *
 *                                                                         *
 *   Copyright (C) 2009-2013 BerLinux Solutions GmbH                       *
 *                                                                         *
 *   Authors:                                                              *
 *      Stefan Schwarzer   <stefan.schwarzer@diskohq.org>,                 *
 *      Matthias Hardt     <matthias.hardt@diskohq.org>,                   *
 *      Jens Schneider     <jens.schneider@diskohq.org>,                   *
 *      Guido Madaus       <guido.madaus@diskohq.org>,                     *
 *      Patrick Helterhoff <patrick.helterhoff@diskohq.org>,               *
 *      René Bählkow       <rene.baehlkow@diskohq.org>                     *
 *                                                                         *
 *   This library is free software; you can redistribute it and/or         *
 *   modify it under the terms of the GNU Lesser General Public            *
 *   License version 2.1 as published by the Free Software Foundation.     *
 *                                                                         *
 *   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 Street, Fifth Floor, Boston, MA 02110-1301 USA            *
 **************************************************************************/

#include "mmsgui/mmsfbmanager.h"
#include "mmsgui/fb/mmsfbsurfacemanager.h"
#include <string.h>
#include <stdlib.h>

#ifdef __HAVE_XRANDR__
#include <X11/extensions/Xrandr.h>
#endif

MMS_CREATEERROR(MMSFBManagerError);

/* initialize the mmsfbmanager object */
MMSFBManager mmsfbmanager;

/* exit handler routine */
void mmsfbmanager_onexit(int num, void *arg) {
    MMSFBManager *o=(MMSFBManager*)arg;
    o->release();
}

MMSFBManager::MMSFBManager() {
    // init me
    this->graphicslayer = NULL;
    this->videolayer = NULL;
    this->graphicslayerid = -1;
    this->videolayerid = -1;
    this->layercount = 0;
}

MMSFBManager::~MMSFBManager() {
}

bool MMSFBManager::init(int argc, char **argv, string appl_name, string appl_icon_name,
                        bool virtual_console, bool flip_flush) {
    int myargc=argc;
    char *myargv[255];
    int i;

    // save virtual console state
    this->virtual_console = virtual_console;

    // per default we have one layer
    this->layercount = 1;

    for(i=0;i<argc;i++)
        myargv[i]=strdup(argv[i]);

    DEBUGMSG("MMSGUI", "init mmsfb");
    bool ea = config.getExtendedAccel();
#ifdef  __HAVE_DIRECTFB__
    if (config.getAllocMethod() == "DFB") {
        // use dfb even if extended accel
        ea = false;
    }
#endif

    if (this->config.getRotateScreen() == 180) {
        // set rotate by 180° flag
        MMSFBBase_rotate180 = true;
    }

    // get layer settings from config
    MMSConfigDataLayer videolayer_conf = this->config.getVideoLayer();
    MMSConfigDataLayer graphicslayer_conf = this->config.getGraphicsLayer();

#ifdef  __HAVE_DIRECTFB__
    if(videolayer_conf.outputtype == MMSFB_OT_X11) {
        myargv[myargc++] = strdup("--dfb:system=x11");
        char mode[24];
        snprintf(mode, 24, "--dfb:mode=%dx%d", graphicslayer_conf.rect.w, graphicslayer_conf.rect.h);
        myargv[myargc++] = strdup(mode);
    }
#endif

    // init the MMSFB class
    if (!mmsfb->init(myargc, myargv, config.getBackend(), graphicslayer_conf.rect,
                     ea, config.getFullScreen(), config.getPointer(), appl_name, appl_icon_name, config.getHideApplication())) {
        DEBUGMSG("MMSGUI", "init mmsfb failed!");
        throw MMSFBManagerError(0, MMSFB_LastErrorString);
    }

    DEBUGMSG("MMSGUI", "get video layer");
    if (!mmsfb->getLayer(videolayer_conf.id, &this->videolayer, videolayer_conf.outputtype, this->virtual_console))
        throw MMSFBManagerError(0, MMSFB_LastErrorString);

    if (videolayer_conf.id == graphicslayer_conf.id) {
        DEBUGMSG("MMSGUI", "video layer and graphics layer are the same");
        this->graphicslayer = this->videolayer;

        if (!flip_flush)
            this->graphicslayer->setFlipFlags(MMSFB_FLIP_ONSYNC);
        else
            this->graphicslayer->setFlipFlags(MMSFB_FLIP_ONSYNC | MMSFB_FLIP_FLUSH);
    }
    else {
        this->layercount++;
        DEBUGMSG("MMSGUI", "get graphics layer");
        if (!mmsfb->getLayer(graphicslayer_conf.id, &this->graphicslayer, graphicslayer_conf.outputtype, false))
            throw MMSFBManagerError(0, MMSFB_LastErrorString);

        if (!flip_flush)
            this->graphicslayer->setFlipFlags(MMSFB_FLIP_ONSYNC);
        else
            this->graphicslayer->setFlipFlags(MMSFB_FLIP_ONSYNC | MMSFB_FLIP_FLUSH);

        if (videolayer_conf.outputtype == MMSFB_OT_MATROXFB)
            this->videolayer->setFlipFlags(MMSFB_FLIP_WAITFORSYNC);
        else
            this->videolayer->setFlipFlags(MMSFB_FLIP_ONSYNC);
    }

    if (!this->graphicslayer->getID(&this->graphicslayerid))
        throw MMSFBManagerError(0, MMSFB_LastErrorString);

    if (!this->videolayer->getID(&this->videolayerid))
        throw MMSFBManagerError(0, MMSFB_LastErrorString);

    /* set on exit handler */
    on_exit(mmsfbmanager_onexit, this);

    return true;
}

void MMSFBManager::release() {
    DEBUGMSG("MMSGUI", "release mmsfb");
    if (this->videolayer)
        delete this->videolayer;
    mmsfb->release();
}

void MMSFBManager::applySettings() {
    DEBUGMSG("MMSGUI", "configure graphics layer");

    // get layer settings from config
    MMSConfigDataLayer videolayer_conf = this->config.getVideoLayer();
    MMSConfigDataLayer graphicslayer_conf = this->config.getGraphicsLayer();

    // get the window pixelformat
    MMSFBSurfacePixelFormat window_pixelformat = config.getGraphicsWindowPixelformat();
    switch (window_pixelformat) {
    case MMSFB_PF_ARGB:
    case MMSFB_PF_AiRGB:
    case MMSFB_PF_AYUV:
    case MMSFB_PF_ARGB4444:
    case MMSFB_PF_RGB16:
        break;
    default:
        // window pixelformat not set or unsupported, use the layer pixelformat
        window_pixelformat = graphicslayer_conf.pixelformat;
        if (!isAlphaPixelFormat(window_pixelformat)) {
            // the gui internally needs surfaces with alpha channel
            // now we have to decide if we are working in RGB or YUV color space
            if (!isRGBPixelFormat(window_pixelformat))
                // so switch all non-alpha pixelformats to AYUV
                window_pixelformat = MMSFB_PF_AYUV;
            else
                // so switch all non-alpha pixelformats to ARGB
                window_pixelformat = MMSFB_PF_ARGB;
        }
        else
        if (isIndexedPixelFormat(window_pixelformat)) {
            // the gui internally needs non-indexed surfaces
            // so switch all indexed pixelformats to ARGB
            window_pixelformat = MMSFB_PF_ARGB;
        }
        break;
    }

    // get the surface pixelformat
    MMSFBSurfacePixelFormat surface_pixelformat = config.getGraphicsSurfacePixelformat();
    switch (surface_pixelformat) {
    case MMSFB_PF_ARGB:
    case MMSFB_PF_AiRGB:
    case MMSFB_PF_AYUV:
    case MMSFB_PF_ARGB4444:
    case MMSFB_PF_RGB16:
        break;
    default:
        // surface pixelformat not set or unsupported, use the layer pixelformat
        surface_pixelformat = graphicslayer_conf.pixelformat;
        if (!isAlphaPixelFormat(surface_pixelformat)) {
            // the gui internally needs surfaces with alpha channel
            // now we have to decide if we are working in RGB or YUV color space
            if (!isRGBPixelFormat(surface_pixelformat))
                // so switch all non-alpha pixelformats to AYUV
                surface_pixelformat = MMSFB_PF_AYUV;
            else
                // so switch all non-alpha pixelformats to ARGB
                surface_pixelformat = MMSFB_PF_ARGB;
        }
        else
        if (isIndexedPixelFormat(surface_pixelformat)) {
            // the gui internally needs non-indexed surfaces
            // so switch all indexed pixelformats to ARGB
            surface_pixelformat = MMSFB_PF_ARGB;
        }
        break;
    }

    // set exclusive access to the graphics layer
    DEBUGMSG("MMSGUI", "set exclusive access");
    if (!this->graphicslayer->setExclusiveAccess())
        throw MMSFBManagerError(0, MMSFB_LastErrorString);

    DEBUGMSG("MMSGUI", "set configuration");
    if(!this->graphicslayer->setConfiguration(graphicslayer_conf.rect.w, graphicslayer_conf.rect.h,
                                               graphicslayer_conf.pixelformat,
                                               graphicslayer_conf.buffermode,
                                               graphicslayer_conf.options,
                                               window_pixelformat,
                                               surface_pixelformat))
        throw MMSFBManagerError(0, MMSFB_LastErrorString);

#ifdef __HAVE_XRANDR__
    if(config.getBackend() == MMSFB_BE_X11 && MMSFBBase_rotate180) {
        X11_IMPL *impl = (X11_IMPL*)this->graphicslayer->getImplementation();
        
        /* check for RandR extension */
        int event_base, error_base;
        if (!XRRQueryExtension (impl->x_display, &event_base, &error_base)) {
            fprintf(stderr, "RandR extension missing: Rotation not supported\n");
        } else {
            Window root = DefaultRootWindow(impl->x_display);
            XRRScreenConfiguration *sc = XRRGetScreenInfo(impl->x_display, root);
            if(sc) {
                Rotation rot = RR_Rotate_0;
                SizeID size = XRRConfigCurrentConfiguration(sc, &rot);
                if(rot != RR_Rotate_180) {
                    XRRSetScreenConfig(impl->x_display, sc, root, size, RR_Rotate_180, CurrentTime);
                }
                MMSFBBase_rotate180 = false;
            }
        }       
    }
#endif

    if (this->videolayerid != this->graphicslayerid) {
#ifdef  __HAVE_DIRECTFB__
        if (config.getBackend() == MMSFB_BE_X11) {
            //give a little time to window routines
            usleep(300000);
        }
#endif

        // use both layers
        DEBUGMSG("MMSGUI", "configure video layer");

        DEBUGMSG("MMSGUI", "set exclusive access");
        // set exclusive access to the video layer
        if (!this->videolayer->setExclusiveAccess())
            throw MMSFBManagerError(0, MMSFB_LastErrorString);

        DEBUGMSG("MMSGUI", "set configuration");
        // set video layer's config
        if (!this->videolayer->setConfiguration(videolayer_conf.rect.w, videolayer_conf.rect.h,
                                                videolayer_conf.pixelformat,
                                                videolayer_conf.buffermode,
                                                videolayer_conf.options))
            throw MMSFBManagerError(0, MMSFB_LastErrorString);
        //this->videolayer->dfblayer->SetFieldParity(this->videolayer->dfblayer,0);

        // set the full opacity of the graphics layer
        this->graphicslayer->setOpacity(0);

        if (graphicslayer_conf.outputtype == MMSFB_OT_VIAFB) {
            // set the video layer behind the graphics layer
            DEBUGMSG("MMSGUI", "set the video layer behind the graphics layer");
            this->videolayer->setLevel(-1);
        }
        else
        if (graphicslayer_conf.outputtype == MMSFB_OT_XSHM) {
            DEBUGMSG("MMSGUI", "set the video layer behind the graphics layer");
            this->graphicslayer->setLevel(+1);
        }
    }

    // set global surface attributes
    string buffermode = graphicslayer_conf.buffermode;
    MMSFBSurface *gls;
    if (this->graphicslayer->getSurface(&gls, this->virtual_console)) {
        // set the static extended accel flag
        gls->setExtendedAcceleration(config.getExtendedAccel());

        // set the global alloc method (default is malloc)
        if (mmsfb->getBackend() == MMSFB_BE_DFB) {
#ifdef  __HAVE_DIRECTFB__
            string am = config.getAllocMethod();
            if (am == "MALLOC") {
                if (!config.getExtendedAccel())
                    gls->setAllocMethod(MMSFBSurfaceAllocMethod_dfb);
            }
            else
                gls->setAllocMethod(MMSFBSurfaceAllocMethod_dfb);
#endif
        }
        else
        if (graphicslayer_conf.outputtype == MMSFB_OT_OGL) {
            gls->setAllocMethod(MMSFBSurfaceAllocMethod_ogl);
        }
    }

    // init the mmsfbwindowmanager
    mmsfbwindowmanager->init(this->graphicslayer, (config.getPointer()==MMSFB_PM_TRUE));

    DEBUGMSG("MMSGUI", "creating temporary surface: %dx%d, %s", graphicslayer_conf.rect.w, graphicslayer_conf.rect.h, getMMSFBPixelFormatString(surface_pixelformat).c_str());
    mmsfbsurfacemanager->createTemporarySurface(graphicslayer_conf.rect.w, graphicslayer_conf.rect.h, surface_pixelformat, (buffermode == MMSFB_BM_BACKSYSTEM));
}


MMSFBLayer *MMSFBManager::getVideoLayer() {
    return this->videolayer;
}

MMSFBLayer *MMSFBManager::getGraphicsLayer() {
    return this->graphicslayer;
}

int MMSFBManager::getLayerCount() {
    return this->layercount;
}

---