/***************************************************************************** * directfb.c: DirectFB video output display method ***************************************************************************** * Copyright (C) 2005 the VideoLAN team * * Authors: Iuri Diniz <iuri@digizap.com.br> * * This code is based in sdl.c and fb.c, thanks for VideoLAN team. *  * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * 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 for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA. *****************************************************************************//***************************************************************************** * Preamble *****************************************************************************/#include <errno.h>                                                 /* ENOMEM */#include <stdlib.h>                                                /* free() */#include <string.h>                                            /* strerror() */#include <vlc/vlc.h>#include <vlc/vout.h>#include <directfb.h>/***************************************************************************** * Local prototypes *****************************************************************************/static int  Create    ( vlc_object_t * );static void Destroy   ( vlc_object_t * );static int  Init      ( vout_thread_t * );static void End       ( vout_thread_t * );static int  Manage    ( vout_thread_t * );static void Display   ( vout_thread_t *, picture_t * );static int  OpenDisplay    ( vout_thread_t * );static void CloseDisplay   ( vout_thread_t * );struct vout_sys_t{    IDirectFB *p_directfb;    IDirectFBSurface *p_primary;    DFBSurfacePixelFormat p_pixel_format;    int i_width;    int i_height;    byte_t* p_pixels;};/***************************************************************************** * Module descriptor *****************************************************************************/vlc_module_begin();    set_shortname( "DirectFB" );    set_category( CAT_VIDEO );    set_subcategory( SUBCAT_VIDEO_VOUT );    set_description( _("DirectFB video output http://www.directfb.org/") );    set_capability( "video output", 60 );    add_shortcut( "directfb" );    set_callbacks( Create, Destroy );vlc_module_end();static int Create( vlc_object_t *p_this ) {    vout_thread_t *p_vout = (vout_thread_t *)p_this;    vout_sys_t *p_sys = NULL;    p_vout->pf_init = Init;    p_vout->pf_end = End;    p_vout->pf_manage = Manage;    p_vout->pf_render = NULL;    p_vout->pf_display = Display;    /* Allocate structure */    p_vout->p_sys = p_sys = malloc( sizeof( vout_sys_t ) );    if( !p_sys )    {        msg_Err( p_vout, "out of memory" );        return VLC_ENOMEM;    }    p_sys->p_directfb = NULL;    p_sys->p_primary = NULL;    p_sys->p_pixels = NULL;    p_sys->i_width = 0;    p_sys->i_height = 0;    /* Init DirectFB */    if( DirectFBInit(NULL,NULL) != DFB_OK )    {        msg_Err(p_vout, "Cannot init DirectFB");        return VLC_EGENERIC;    }    if( OpenDisplay( p_vout ) )    {        msg_Err(p_vout, "Cannot create primary surface");        free( p_sys );        return VLC_EGENERIC;    }    return VLC_SUCCESS;}static int Init( vout_thread_t *p_vout ){    vout_sys_t *p_sys = p_vout->p_sys;    IDirectFBSurface *p_primary = (IDirectFBSurface *) p_vout->p_sys->p_primary;    byte_t* p_pixels = NULL;    picture_t *p_pic = NULL;    int i_rlength, i_glength, i_blength;    int i_roffset, i_goffset, i_boffset;    int i_line_pitch;    int i_size;    int i_index;    I_OUTPUTPICTURES = 0;    switch( p_sys->p_pixel_format )    {        case DSPF_RGB332:             /* 8 bit RGB (1 byte, red 3@5, green 3@2, blue 2@0) */            /* i_pixel_pitch = 1; */            i_rlength = 3;            i_roffset = 5;            i_glength = 3;            i_goffset = 2;            i_blength = 2;            i_boffset = 0;            p_vout->output.i_chroma = VLC_FOURCC('R','G','B','2');            break;        case DSPF_RGB16:            /* 16 bit RGB (2 byte, red 5@11, green 6@5, blue 5@0) */            /* i_pixel_pitch = 2; */            i_rlength = 5;            i_roffset = 11;            i_glength = 6;            i_goffset = 5;            i_blength = 5;            i_boffset = 0;            p_vout->output.i_chroma = VLC_FOURCC('R','V','1','6');            break;        case DSPF_RGB24:            /* 24 bit RGB (3 byte, red 8@16, green 8@8, blue 8@0) */            /* i_pixel_pitch = 3; */            i_rlength = 8;            i_roffset = 16;            i_glength = 8;            i_goffset = 8;            i_blength = 8;            i_boffset = 0;            p_vout->output.i_chroma = VLC_FOURCC('R','V','2','4');            break;        case DSPF_RGB32:            /* 24 bit RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */            /* i_pixel_pitch = 4; */            i_rlength = 8;            i_roffset = 16;            i_glength = 8;            i_goffset = 8;            i_blength = 8;            i_boffset = 0;            p_vout->output.i_chroma = VLC_FOURCC('R','V','3','2');            break;        default:            msg_Err( p_vout, "unknown screen depth %i",                     p_sys->p_pixel_format );            return VLC_EGENERIC;    }    /* Set the RGB masks */    p_vout->output.i_rmask = ( (1 << i_rlength) - 1 ) << i_roffset;    p_vout->output.i_gmask = ( (1 << i_glength) - 1 ) << i_goffset;    p_vout->output.i_bmask = ( (1 << i_blength) - 1 ) << i_boffset;    /* Width and height */    p_vout->output.i_width  = p_sys->i_width;    p_vout->output.i_height = p_sys->i_height;    /* The aspect */    p_vout->output.i_aspect = (p_sys->i_width * VOUT_ASPECT_FACTOR) /                               p_sys->i_height;    /* Try to initialize 1 buffer */    /* Find an empty picture slot */    for( i_index = 0 ; i_index < VOUT_MAX_PICTURES ; i_index++ )    {        if( p_vout->p_picture[ i_index ].i_status == FREE_PICTURE )        {            p_pic = p_vout->p_picture + i_index;            break;        }    }    /* Allocate the picture */    if( !p_pic )        return VLC_EGENERIC;    /* get the pixels */    if( p_primary->Lock( p_primary, DSLF_READ, (void **) &p_pixels,                         &i_line_pitch) != DFB_OK )        return VLC_EGENERIC;    /* allocate p_pixels */    i_size = i_line_pitch * p_sys->i_height;    p_sys->p_pixels = malloc( sizeof(byte_t) * i_size );    if( p_sys->p_pixels == NULL )    {        p_primary->Unlock(p_primary);        return VLC_ENOMEM;    }    /* copy pixels */    memcpy( p_sys->p_pixels,  p_pixels, i_size );    if( p_primary->Unlock(p_primary) != DFB_OK )    {        return VLC_EGENERIC;    }    p_pic->p->p_pixels = p_sys->p_pixels;    p_pic->p->i_pixel_pitch = i_line_pitch / p_sys->i_width;    p_pic->p->i_lines = p_sys->i_height;    p_pic->p->i_visible_lines = p_sys->i_height;    p_pic->p->i_pitch = i_line_pitch;    p_pic->p->i_visible_pitch = i_line_pitch;    p_pic->i_planes = 1;    p_pic->i_status = DESTROYED_PICTURE;    p_pic->i_type   = DIRECT_PICTURE;    PP_OUTPUTPICTURE[ I_OUTPUTPICTURES ] = p_pic;    I_OUTPUTPICTURES++;    return VLC_SUCCESS;}static void End( vout_thread_t *p_vout ){    vout_sys_t *p_sys = p_vout->p_sys;    if( p_sys->p_pixels )        free( p_sys->p_pixels );}static void Destroy( vlc_object_t *p_this ){    vout_thread_t *p_vout = (vout_thread_t *)p_this;    vout_sys_t *p_sys = p_vout->p_sys;    CloseDisplay( p_vout );    if( p_sys ) free( p_sys );    p_sys = NULL;}static int Manage( vout_thread_t *p_vout ){    return VLC_SUCCESS;}static void Display( vout_thread_t *p_vout, picture_t *p_pic ){    vout_sys_t *p_sys = p_vout->p_sys;    IDirectFBSurface *p_primary = (IDirectFBSurface *) p_sys->p_primary;    byte_t* p_pixels = NULL;    int i_size;    int i_line_pitch;    /* get the pixels */    if( p_primary->Lock( p_primary, DSLF_WRITE,                         (void **) &p_pixels,                         &i_line_pitch) == DFB_OK )    {        i_size = i_line_pitch * p_vout->p_sys->i_height;        /* copy pixels */        memcpy( p_pixels, p_pic->p->p_pixels, i_size);        if( p_primary->Unlock(p_primary) == DFB_OK )        {            p_primary->Flip(p_primary, NULL, 0);        }    }}static int OpenDisplay( vout_thread_t *p_vout ){    vout_sys_t *p_sys = p_vout->p_sys;    IDirectFB *p_directfb = NULL;    IDirectFBSurface *p_primary = NULL;    DFBSurfaceDescription dsc;    /*dsc.flags = DSDESC_CAPS | DSDESC_HEIGHT | DSDESC_WIDTH;*/    dsc.flags = DSDESC_CAPS;    dsc.caps  = DSCAPS_PRIMARY | DSCAPS_FLIPPING;    /*dsc.width = 352;*/    /*dsc.height = 240;*/    if( DirectFBCreate( &p_directfb ) != DFB_OK )        return VLC_EGENERIC;    p_sys->p_directfb = p_directfb;    if( !p_directfb )        return VLC_EGENERIC;    if( p_directfb->CreateSurface( p_directfb, &dsc, &p_primary ) )        return VLC_EGENERIC;    p_sys->p_primary = p_primary;    if( !p_primary )        return VLC_EGENERIC;    p_primary->GetSize( p_primary, &p_sys->i_width,                        &p_sys->i_height );    p_primary->GetPixelFormat( p_primary, &p_sys->p_pixel_format );    p_primary->FillRectangle( p_primary, 0, 0, p_sys->i_width,                              p_sys->i_height );    p_primary->Flip( p_primary, NULL, 0 );    return VLC_SUCCESS;}static void CloseDisplay( vout_thread_t *p_vout ){    vout_sys_t *p_sys = p_vout->p_sys;    IDirectFB *p_directfb = p_sys->p_directfb;    IDirectFBSurface *p_primary = p_sys->p_primary;    if( p_primary )        p_primary->Release( p_primary );    if( p_directfb )        p_directfb->Release( p_directfb );}