modules/video_output/directfb.c

   1 /*****************************************************************************
   2  * directfb.c: DirectFB video output display method
   3  *****************************************************************************
   4  * Copyright © 2005-2009 VLC authors and VideoLAN
   5  *
   6  * Authors: Iuri Diniz <iuridiniz@gmail.com>
   7  *          Laurent Aimar <fenrir@videolan.org>
   8  *
   9  * This code is based in sdl.c and fb.c, thanks for VideoLAN team.
  10  *
  11  * This program is free software; you can redistribute it and/or modify it
  12  * under the terms of the GNU Lesser General Public License as published by
  13  * the Free Software Foundation; either version 2.1 of the License, or
  14  * (at your option) any later version.
  15  *
  16  * This program is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  19  * GNU Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public License
  22  * along with this program; if not, write to the Free Software Foundation,
  23  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  24  *****************************************************************************/
  25
  26 /*****************************************************************************
  27  * Preamble
  28  *****************************************************************************/
  29 #ifdef HAVE_CONFIG_H
  30 # include "config.h"
  31 #endif
  32
  33 #include <vlc_common.h>
  34 #include <vlc_plugin.h>
  35 #include <vlc_vout_display.h>
  36 #include <vlc_picture_pool.h>
  37
  38 #include <directfb.h>
  39
  40 /*****************************************************************************
  41  * Module descriptor
  42  *****************************************************************************/
  43 static int  Open (vlc_object_t *);
  44 static void Close(vlc_object_t *);
  45
  46 vlc_module_begin()
  47     set_shortname("DirectFB")
  48     set_category(CAT_VIDEO)
  49     set_subcategory(SUBCAT_VIDEO_VOUT)
  50     set_description(N_("DirectFB video output http://www.directfb.org/"))
  51     set_capability("vout display", 35)
  52     add_shortcut("directfb")
  53     set_callbacks(Open, Close)
  54 vlc_module_end()
  55
  56 /*****************************************************************************
  57  * Local prototypes
  58  *****************************************************************************/
  59 static picture_pool_t *Pool  (vout_display_t *, unsigned);
  60 static void           Display(vout_display_t *, picture_t *, subpicture_t *);
  61 static int            Control(vout_display_t *, int, va_list);
  62 static void           Manage (vout_display_t *);
  63
  64 /* */
  65 struct vout_display_sys_t {
  66     IDirectFB             *directfb;
  67     IDirectFBSurface      *primary;
  68
  69     picture_pool_t *pool;
  70 };
  71
  72 /* */
  73 static int Open(vlc_object_t *object)
  74 {
  75     vout_display_t *vd = (vout_display_t *)object;
  76     vout_display_sys_t *sys;
  77
  78     /* Allocate structure */
  79     vd->sys = sys = calloc(1, sizeof(*sys));
  80     if (!sys)
  81         return VLC_ENOMEM;
  82
  83     /* Init DirectFB */
  84     if (DirectFBInit(NULL,NULL) != DFB_OK) {
  85         msg_Err(vd, "Cannot init DirectFB");
  86         free(sys);
  87         return VLC_EGENERIC;
  88     }
  89
  90     DFBSurfaceDescription dsc;
  91     /*dsc.flags = DSDESC_CAPS | DSDESC_HEIGHT | DSDESC_WIDTH;*/
  92     dsc.flags = DSDESC_CAPS;
  93     dsc.caps  = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
  94     /*dsc.width = 352;*/
  95     /*dsc.height = 240;*/
  96
  97     IDirectFB *directfb = NULL;
  98     if (DirectFBCreate(&directfb) != DFB_OK || !directfb)
  99         goto error;
 100     sys->directfb = directfb;
 101
 102     IDirectFBSurface *primary = NULL;
 103     if (directfb->CreateSurface(directfb, &dsc, &primary) || !primary)
 104         goto error;
 105     sys->primary = primary;
 106
 107     /* */
 108     int width;
 109     int height;
 110
 111     primary->GetSize(primary, &width, &height);
 112     primary->FillRectangle(primary, 0, 0, width, height);
 113     primary->Flip(primary, NULL, 0);
 114
 115     vout_display_DeleteWindow(vd, NULL);
 116
 117     /* */
 118     video_format_t fmt;
 119     video_format_ApplyRotation(&fmt, &vd->fmt);
 120
 121     DFBSurfacePixelFormat pixel_format;
 122     sys->primary->GetPixelFormat(sys->primary, &pixel_format);
 123     switch (pixel_format) {
 124     case DSPF_RGB332:
 125         fmt.i_chroma = VLC_CODEC_RGB8;
 126         fmt.i_rmask = 0x7 << 5;
 127         fmt.i_gmask = 0x7 << 2;
 128         fmt.i_bmask = 0x3 << 0;
 129         break;
 130     case DSPF_RGB16: fmt.i_chroma = VLC_CODEC_RGB16; break;
 131     case DSPF_RGB24: fmt.i_chroma = VLC_CODEC_RGB24; break;
 132     case DSPF_RGB32: fmt.i_chroma = VLC_CODEC_RGB32; break;
 133     default:
 134         msg_Err(vd, "unknown screen depth %i", pixel_format);
 135         Close(VLC_OBJECT(vd));
 136         return VLC_EGENERIC;
 137     }
 138
 139     video_format_FixRgb(&fmt);
 140
 141     fmt.i_width  = width;
 142     fmt.i_height = height;
 143
 144     /* */
 145     vout_display_info_t info = vd->info;
 146     info.has_hide_mouse = true;
 147
 148     /* */
 149     vd->fmt     = fmt;
 150     vd->info    = info;
 151     vd->pool    = Pool;
 152     vd->prepare = NULL;
 153     vd->display = Display;
 154     vd->control = Control;
 155     vd->manage  = Manage;
 156
 157     /* */
 158     vout_display_SendEventFullscreen(vd, true);
 159     vout_display_SendEventDisplaySize(vd, fmt.i_width, fmt.i_height, true);
 160     return VLC_SUCCESS;
 161
 162 error:
 163     msg_Err(vd, "Cannot create primary surface");
 164     Close(VLC_OBJECT(vd));
 165     return VLC_EGENERIC;
 166 }
 167
 168 static void Close(vlc_object_t *object)
 169 {
 170     vout_display_t *vd = (vout_display_t *)object;
 171     vout_display_sys_t *sys = vd->sys;
 172
 173     if (sys->pool)
 174         picture_pool_Delete(sys->pool);
 175
 176     IDirectFBSurface *primary = sys->primary;
 177     if (primary)
 178         primary->Release(primary);
 179
 180     IDirectFB *directfb = sys->directfb;
 181     if (directfb)
 182         directfb->Release(directfb);
 183
 184     free(sys);
 185 }
 186
 187 /* */
 188 static picture_pool_t *Pool(vout_display_t *vd, unsigned count)
 189 {
 190     vout_display_sys_t *sys = vd->sys;
 191
 192     if (!sys->pool)
 193         sys->pool = picture_pool_NewFromFormat(&vd->fmt, count);
 194     return sys->pool;
 195 }
 196
 197 static void Display(vout_display_t *vd, picture_t *picture, subpicture_t *subpicture)
 198 {
 199     vout_display_sys_t *sys = vd->sys;
 200
 201     IDirectFBSurface *primary = sys->primary;
 202
 203     void *pixels;
 204     int  pitch;
 205     if (primary->Lock(primary, DSLF_WRITE, &pixels, &pitch) == DFB_OK) {
 206         picture_resource_t rsc;
 207
 208         memset(&rsc, 0, sizeof(rsc));
 209         rsc.p[0].p_pixels = pixels;
 210         rsc.p[0].i_lines  = vd->fmt.i_height;
 211         rsc.p[0].i_pitch  = pitch;
 212
 213         picture_t *direct = picture_NewFromResource(&vd->fmt, &rsc);
 214         if (direct) {
 215             picture_Copy(direct, picture);
 216             picture_Release(direct);
 217         }
 218
 219         if (primary->Unlock(primary) == DFB_OK)
 220             primary->Flip(primary, NULL, 0);
 221     }
 222     picture_Release(picture);
 223     VLC_UNUSED(subpicture);
 224 }
 225
 226 static int Control(vout_display_t *vd, int query, va_list args)
 227 {
 228     switch (query) {
 229     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE: {
 230         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 231         if (cfg->display.width  != vd->fmt.i_width ||
 232             cfg->display.height != vd->fmt.i_height)
 233             return VLC_EGENERIC;
 234         return VLC_SUCCESS;
 235     }
 236     default:
 237         msg_Err(vd, "Unsupported query in vout display directfb");
 238         return VLC_EGENERIC;
 239     }
 240 }
 241
 242 static void Manage (vout_display_t *vd)
 243 {
 244     VLC_UNUSED(vd);
 245 }