mmsfblayer.h

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/***************************************************************************
 *   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            *
 **************************************************************************/

#ifndef MMSFBLAYER_H_
#define MMSFBLAYER_H_

#include "mmstools/mmslogger.h"
#include "mmsgui/fb/mmsfbbase.h"
#include "mmsgui/fb/mmsfbsurface.h"
#include "mmsgui/fb/mmsfbwindow.h"

#ifdef __HAVE_XLIB__
#include <X11/extensions/Xrender.h>
#include <X11/extensions/Xcomposite.h>

typedef struct {
    Display *x_display;
    Window x_window;
    GC x_gc;
    int xv_port;
#ifdef __HAVE_XV__
    XvImage *xv_image1;
    XvImage *xv_image2;
#endif
    int w;
    int h;
    int x_screen;
} X11_IMPL;
#endif

//! describes the config of a layer
typedef struct {
    //! config available?
    bool    avail;
    //! layer's id
    int     id;
    //! used backend, normally it is not layer specific
    MMSFBBackend backend;
    //! used outputtype, can be layer specific
    MMSFBOutputType outputtype;
    //! width
    int     w;
    //! height
    int     h;
    //! pixelformat
    MMSFBSurfacePixelFormat pixelformat;
    //! buffer mode
    string  buffermode;
    //! options
    string  options;
    //! pixelformat for windows
    MMSFBSurfacePixelFormat window_pixelformat;
    //! pixelformat for surfaces
    MMSFBSurfacePixelFormat surface_pixelformat;
} MMSFBLayerConfig;

//! This class describes a display layer.
/*!
\author Jens Schneider
*/
class MMSFBLayer {
    private:
        //! is initialized?
        bool initialized;

#ifdef  __HAVE_DIRECTFB__
        //! interface to the dfb layer
        IDirectFBDisplayLayer   *dfblayer;
#endif

#if defined(__HAVE_FBDEV__) || defined(__HAVE_KMS__)
        MMSFBSurface    *mmsfbdev_surface;
#endif

#ifdef __HAVE_XLIB__
        XImage            *x_image1;
        XShmSegmentInfo   x_shminfo1;
        XImage            *x_image2;
        XShmSegmentInfo   x_shminfo2;
        XImage            *x_image_scaler;
        XShmSegmentInfo   x_shminfo_scaler;
        MMSFBSurface      *scaler;
        Visual            *x_visual;
        Window            x_window;
        Pixmap            pixmap;
        XRenderPictFormat *pict_format;
        Picture           x_pixmap_pict;
        Picture           x_window_pict;
        GC                x_gc;
        int               x_window_h;
        int               x_window_w;
        X11_IMPL          impl;

#endif
#ifdef __HAVE_XV__
        XvImage         *xv_image1;
        XShmSegmentInfo xv_shminfo1;
        XvImage         *xv_image2;
        XShmSegmentInfo xv_shminfo2;
#endif

        // layer configuration
        MMSFBLayerConfig        config;

        // layers surface
        MMSFBSurface            *surface;

        // flags which are used when flipping
        MMSFBFlipFlags          flipflags;

        // first time flag for createSurface()
        static bool             firsttime_createsurface;

        // first time flags for createWindow()
        static bool             firsttime_createwindow_usealpha;
        static bool             firsttime_createwindow_noalpha;

    public:
        MMSFBLayer(int id, MMSFBBackend backend, MMSFBOutputType outputtype);
        virtual ~MMSFBLayer();

        bool isInitialized();

        bool getID(int *id);
        bool setExclusiveAccess();
        bool getConfiguration(MMSFBLayerConfig *config = NULL);
        bool getResolution(int *w, int *h);
        bool getPixelFormat(MMSFBSurfacePixelFormat *pixelformat);
        bool setConfiguration(int w=0, int h=0, MMSFBSurfacePixelFormat pixelformat=MMSFB_PF_NONE, string buffermode="", string options="",
                              MMSFBSurfacePixelFormat window_pixelformat=MMSFB_PF_NONE, MMSFBSurfacePixelFormat surface_pixelformat=MMSFB_PF_NONE);
        bool setOpacity(unsigned char opacity);
        bool setLevel(int level);
        bool getSurface(MMSFBSurface **surface, bool clear = false);

        bool setFlipFlags(MMSFBFlipFlags flags);

        bool releaseLayer();
        bool restoreLayer();

        bool createSurface(MMSFBSurface **surface, int w, int h,
                           MMSFBSurfacePixelFormat pixelformat = MMSFB_PF_NONE, int backbuffer = 0);
        bool createWindow(MMSFBWindow **window, int x, int y, int w, int h,
                           MMSFBSurfacePixelFormat pixelformat = MMSFB_PF_NONE,
                           bool usealpha = true, int backbuffer = 1);

        void *getImplementation();

        friend class MMSFBManager;
        friend class MMSFBSurface;
};

#endif /*MMSFBLAYER_H_*/

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