DFBDeviceScreen.h

/******************************************************************************
Este arquivo eh parte da implementacao do ambiente declarativo do middleware
Ginga (Ginga-NCL).

Direitos Autorais Reservados (c) 1989-2007 PUC-Rio/Laboratorio TeleMidia

Este programa eh software livre; voce pode redistribui-lo e/ou modificah-lo sob
os termos da Licenca Publica Geral GNU versao 2 conforme publicada pela Free
Software Foundation.

Este programa eh distribuido na expectativa de que seja util, porem, SEM
NENHUMA GARANTIA; nem mesmo a garantia implicita de COMERCIABILIDADE OU
ADEQUACAO A UMA FINALIDADE ESPECIFICA. Consulte a Licenca Publica Geral do
GNU versao 2 para mais detalhes.

Voce deve ter recebido uma copia da Licenca Publica Geral do GNU versao 2 junto
com este programa; se nao, escreva para a Free Software Foundation, Inc., no
endereco 59 Temple Street, Suite 330, Boston, MA 02111-1307 USA.

Para maiores informacoes:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
******************************************************************************
This file is part of the declarative environment of middleware Ginga (Ginga-NCL)

Copyright: 1989-2007 PUC-RIO/LABORATORIO TELEMIDIA, All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License version 2 as published by
the Free Software Foundation.

This program 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 General Public License version 2 for more
details.

You should have received a copy of the GNU General Public License version 2
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

For further information contact:
ncl @ telemidia.puc-rio.br
http://www.ncl.org.br
http://www.ginga.org.br
http://www.telemidia.puc-rio.br
*******************************************************************************/

#ifndef DFBDEVICESCREEN_H_
#define DFBDEVICESCREEN_H_

#include "config.h"

#if HAVE_COMPONENTS
#include "cm/IComponentManager.h"
using namespace ::br::pucrio::telemidia::ginga::core::cm;
#endif

#include "mb/interface/IDeviceScreen.h"

#ifdef __cplusplus
extern "C" {
#endif
#include <directfb.h>
#ifdef __cplusplus
}
#endif

/* macro for a safe call to DirectFB functions */
#ifndef DFBCHECK
#define DFBCHECK(x...)                                                \
{                                                                     \
    DFBResult err = x;                                                \
    if (err != DFB_OK) {                                              \
        fprintf( stderr, "%s <%d>:%d\n\t", __FILE__, __LINE__, err ); \
    }                                                                 \
}
#endif /*DFBCHECK*/

#include <pthread.h>

#include <map>
#include <set>
#include <iostream>
using namespace std;

namespace br {
namespace pucrio {
namespace telemidia {
namespace ginga {
namespace core {
namespace mb {
    class DFBDeviceScreen : public IDeviceScreen {
        public:
            static const unsigned int DSA_UNKNOWN;
            static const unsigned int DSA_4x3;
            static const unsigned int DSA_16x9;

        private:
            string aSystem;
            unsigned int aspect;
            unsigned int hSize;
            unsigned int vSize;
            unsigned int hRes;
            unsigned int wRes;

#if HAVE_COMPONENTS
            static IComponentManager* cm;
#endif
            set<IWindow*> windowPool;
            vector<IWindow*> windowRenderList;
            set<ISurface*> surfacePool;
            set<IContinuousMediaProvider*> cmpPool;

            GingaScreenID id;
            IInputManager* im;

            pthread_mutex_t winMutex;
            pthread_mutex_t surMutex;
            pthread_mutex_t cmpMutex;

            static unsigned int numOfDFBScreens;
            static IDirectFB* dfb;
            static IDirectFBDisplayLayer* gfxLayer;

            static pthread_mutex_t ieMutex;
            static map<int, int> gingaToDFBCodeMap;
            static map<int, int> dfbToGingaCodeMap;

        public:
            DFBDeviceScreen(
                    int numArgs, char** args,
                    GingaScreenID myId, GingaWindowID embedId,
                    bool externalRenderer);

            virtual ~DFBDeviceScreen();

            void releaseScreen();
            void releaseMB();

            void clearWidgetPools();

        private:
            void setUnderlyingRootWindow(GingaWindowID embedId);

        public:
            string getScreenName();
            GingaWindowID getScreenUnderlyingWindow(){return NULL;};

            void setBackgroundImage(string uri);

            unsigned int getWidthResolution();
            void setWidthResolution(unsigned int wRes);
            unsigned int getHeightResolution();
            void setHeightResolution(unsigned int hRes);

            void setColorKey(int r, int g, int b);

            IWindow* getIWindowFromId(GingaWindowID winId) {return NULL;};
            bool mergeIds(GingaWindowID destId, vector<GingaWindowID>* srcIds);
            void blitScreen(ISurface* destination);
            void blitScreen(string fileUri);
            void refreshScreen(){};


            /* interfacing output */

            IWindow* createWindow(int x, int y, int w, int h, float z);

            GingaWindowID createUnderlyingSubWindow(
                    int x, int y, int w, int h, float z) {return NULL;};

            IWindow* createWindowFrom(GingaWindowID underlyingWindow);
            bool hasWindow(IWindow* win);
            void releaseWindow(IWindow* win);

            ISurface* createSurface();
            ISurface* createSurface(int w, int h);
            ISurface* createSurfaceFrom(void* underlyingSurface);
            bool hasSurface(ISurface* sur);
            bool releaseSurface(ISurface* sur);


            /* interfacing content */

            IContinuousMediaProvider* createContinuousMediaProvider(
                    const char* mrl, bool* hasVisual, bool isRemote);

            void releaseContinuousMediaProvider(
                    IContinuousMediaProvider* provider);

            IFontProvider* createFontProvider(
                    const char* mrl, int fontSize);

            void releaseFontProvider(IFontProvider* provider);

            IImageProvider* createImageProvider(const char* mrl);
            void releaseImageProvider(IImageProvider* provider);

            ISurface* createRenderedSurfaceFromImageFile(const char* mrl);


            /* interfacing input */

            IInputManager* getInputManager();

            IEventBuffer* createEventBuffer();
            IInputEvent* createInputEvent(void* event, const int symbol);
            IInputEvent* createApplicationEvent(int type, void* data);
            int fromMBToGinga(int keyCode);
            int fromGingaToMB(int keyCode);

            /* interfacing underlying multimedia system */

            void* getGfxRoot();


            /* libgingaccmbdfb internal use*/

            /* input */
            static void initCodeMaps();

            /* output */
            static IDirectFBWindow* getUnderlyingWindow(GingaWindowID winId);

            static IDirectFBWindow* createUnderlyingWindow(
                    DFBWindowDescription* desc);

            static void releaseUnderlyingWindow(IDirectFBWindow* uWin);

            static IDirectFBSurface* createUnderlyingSurface(
                    DFBSurfaceDescription* desc);

            static void releaseUnderlyingSurface(IDirectFBSurface* uSur);

        private:
            void insertWindowFromRenderList(
                    IWindow* win, vector<IWindow*>* windows);

            void removeWindowFromRenderList(
                    IWindow* win, vector<IWindow*>* windows);
    };
}
}
}
}
}
}

#endif /*DFBDEVICESCREEN_H_*/