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
  63 /* */
  64 struct vout_display_sys_t {
  65     IDirectFB             *directfb;
  66     IDirectFBSurface      *primary;
  67
  68     picture_pool_t *pool;
  69 };
  70
  71 /* */
  72 static int Open(vlc_object_t *object)
  73 {
  74     vout_display_t *vd = (vout_display_t *)object;
  75     vout_display_sys_t *sys;
  76
  77     vd->sys = sys = calloc(1, sizeof(*sys));
  78     if (!sys)
  79         return VLC_ENOMEM;
  80
  81     if (DirectFBInit(NULL,NULL) != DFB_OK) {
  82         msg_Err(vd, "Cannot init DirectFB");
  83         free(sys);
  84         return VLC_EGENERIC;
  85     }
  86
  87     DFBSurfaceDescription dsc;
  88     /*dsc.flags = DSDESC_CAPS | DSDESC_HEIGHT | DSDESC_WIDTH;*/
  89     dsc.flags = DSDESC_CAPS;
  90     dsc.caps  = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
  91     /*dsc.width = 352;*/
  92     /*dsc.height = 240;*/
  93
  94     IDirectFB *directfb = NULL;
  95     if (DirectFBCreate(&directfb) != DFB_OK || !directfb)
  96         goto error;
  97     sys->directfb = directfb;
  98
  99     IDirectFBSurface *primary = NULL;
 100     if (directfb->CreateSurface(directfb, &dsc, &primary) || !primary)
 101         goto error;
 102     sys->primary = primary;
 103
 104     /* */
 105     int width;
 106     int height;
 107
 108     primary->GetSize(primary, &width, &height);
 109     primary->FillRectangle(primary, 0, 0, width, height);
 110     primary->Flip(primary, NULL, 0);
 111
 112     vout_display_DeleteWindow(vd, NULL);
 113
 114     /* */
 115     video_format_t fmt;
 116     video_format_ApplyRotation(&fmt, &vd->fmt);
 117
 118     DFBSurfacePixelFormat pixel_format;
 119     sys->primary->GetPixelFormat(sys->primary, &pixel_format);
 120     switch (pixel_format) {
 121     case DSPF_RGB332:
 122         fmt.i_chroma = VLC_CODEC_RGB8;
 123         fmt.i_rmask = 0x7 << 5;
 124         fmt.i_gmask = 0x7 << 2;
 125         fmt.i_bmask = 0x3 << 0;
 126         break;
 127     case DSPF_RGB16: fmt.i_chroma = VLC_CODEC_RGB16; break;
 128     case DSPF_RGB24: fmt.i_chroma = VLC_CODEC_RGB24; break;
 129     case DSPF_RGB32: fmt.i_chroma = VLC_CODEC_RGB32; break;
 130     default:
 131         msg_Err(vd, "unknown screen depth %i", pixel_format);
 132         Close(VLC_OBJECT(vd));
 133         return VLC_EGENERIC;
 134     }
 135
 136     video_format_FixRgb(&fmt);
 137
 138     fmt.i_width  = width;
 139     fmt.i_height = height;
 140     fmt.i_visible_width  = width;
 141     fmt.i_visible_height = height;
 142
 143     /* */
 144     vout_display_info_t info = vd->info;
 145     info.has_hide_mouse = true;
 146
 147     /* */
 148     vd->fmt     = fmt;
 149     vd->info    = info;
 150     vd->pool    = Pool;
 151     vd->prepare = NULL;
 152     vd->display = Display;
 153     vd->control = Control;
 154     vd->manage  = NULL;
 155
 156     /* */
 157     vout_display_SendEventFullscreen(vd, true);
 158     vout_display_SendEventDisplaySize(vd, fmt.i_width, fmt.i_height, true);
 159     return VLC_SUCCESS;
 160
 161 error:
 162     msg_Err(vd, "Cannot create primary surface");
 163     Close(VLC_OBJECT(vd));
 164     return VLC_EGENERIC;
 165 }
 166
 167 static void Close(vlc_object_t *object)
 168 {
 169     vout_display_t *vd = (vout_display_t *)object;
 170     vout_display_sys_t *sys = vd->sys;
 171
 172     if (sys->pool)
 173         picture_pool_Delete(sys->pool);
 174
 175     IDirectFBSurface *primary = sys->primary;
 176     if (primary)
 177         primary->Release(primary);
 178
 179     IDirectFB *directfb = sys->directfb;
 180     if (directfb)
 181         directfb->Release(directfb);
 182
 183     free(sys);
 184 }
 185
 186 /* */
 187 static picture_pool_t *Pool(vout_display_t *vd, unsigned count)
 188 {
 189     vout_display_sys_t *sys = vd->sys;
 190
 191     if (!sys->pool)
 192         sys->pool = picture_pool_NewFromFormat(&vd->fmt, count);
 193     return sys->pool;
 194 }
 195
 196 static void Display(vout_display_t *vd, picture_t *picture, subpicture_t *subpicture)
 197 {
 198     vout_display_sys_t *sys = vd->sys;
 199
 200     IDirectFBSurface *primary = sys->primary;
 201
 202     void *pixels;
 203     int  pitch;
 204     if (primary->Lock(primary, DSLF_WRITE, &pixels, &pitch) == DFB_OK) {
 205         picture_resource_t rsc;
 206
 207         memset(&rsc, 0, sizeof(rsc));
 208         rsc.p[0].p_pixels = pixels;
 209         rsc.p[0].i_lines  = vd->fmt.i_height;
 210         rsc.p[0].i_pitch  = pitch;
 211
 212         picture_t *direct = picture_NewFromResource(&vd->fmt, &rsc);
 213         if (direct) {
 214             picture_Copy(direct, picture);
 215             picture_Release(direct);
 216         }
 217
 218         if (primary->Unlock(primary) == DFB_OK)
 219             primary->Flip(primary, NULL, 0);
 220     }
 221     picture_Release(picture);
 222     VLC_UNUSED(subpicture);
 223 }
 224
 225 static int Control(vout_display_t *vd, int query, va_list args)
 226 {
 227     switch (query) {
 228     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE: {
 229         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 230         if (cfg->display.width  != vd->fmt.i_width ||
 231             cfg->display.height != vd->fmt.i_height)
 232             return VLC_EGENERIC;
 233         return VLC_SUCCESS;
 234     }
 235     default:
 236         msg_Err(vd, "Unsupported query in vout display directfb");
 237         return VLC_EGENERIC;
 238     }
 239 }