modules/video_output/directfb.c

   1 /*****************************************************************************
   2  * directfb.c: DirectFB video output display method
   3  *****************************************************************************
   4  * Copyright (C) 2005-2009 the VideoLAN team
   5  *
   6  * Authors: Iuri Diniz <iuri@digizap.com.br>
   7  *
   8  * This code is based in sdl.c and fb.c, thanks for VideoLAN team.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  23  *****************************************************************************/
  24
  25 /*****************************************************************************
  26  * Preamble
  27  *****************************************************************************/
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <vlc_common.h>
  33 #include <vlc_plugin.h>
  34 #include <vlc_vout_display.h>
  35 #include <vlc_picture_pool.h>
  36
  37 #include <directfb.h>
  38
  39 /*****************************************************************************
  40  * Module descriptor
  41  *****************************************************************************/
  42 static int  Open (vlc_object_t *);
  43 static void Close(vlc_object_t *);
  44
  45 vlc_module_begin()
  46     set_shortname("DirectFB")
  47     set_category(CAT_VIDEO)
  48     set_subcategory(SUBCAT_VIDEO_VOUT)
  49     set_description(N_("DirectFB video output http://www.directfb.org/"))
  50     set_capability("vout display", 60)
  51     add_shortcut("directfb")
  52     set_callbacks(Open, Close)
  53 vlc_module_end()
  54
  55 /*****************************************************************************
  56  * Local prototypes
  57  *****************************************************************************/
  58 static picture_pool_t *Pool  (vout_display_t *, unsigned);
  59 static void           Display(vout_display_t *, picture_t *);
  60 static int            Control(vout_display_t *, int, va_list);
  61 static void           Manage (vout_display_t *);
  62
  63 /* */
  64 static int  OpenDisplay (vout_display_t *);
  65 static void CloseDisplay(vout_display_t *);
  66
  67 /* */
  68 struct vout_display_sys_t {
  69     /* */
  70     IDirectFB             *directfb;
  71     IDirectFBSurface      *primary;
  72     DFBSurfacePixelFormat pixel_format;
  73
  74     /* */
  75     int width;
  76     int height;
  77
  78     /* */
  79     picture_pool_t *pool;
  80 };
  81
  82 /* */
  83 static int Open(vlc_object_t *object)
  84 {
  85     vout_display_t *vd = (vout_display_t *)object;
  86     vout_display_sys_t *sys;
  87
  88     /* Allocate structure */
  89     vd->sys = sys = malloc(sizeof(*sys));
  90     if (!sys)
  91         return VLC_ENOMEM;
  92
  93     sys->directfb = NULL;
  94     sys->primary  = NULL;
  95     sys->width    = 0;
  96     sys->height   = 0;
  97     sys->pool     = NULL;
  98
  99     /* Init DirectFB */
 100     if (DirectFBInit(NULL,NULL) != DFB_OK) {
 101         msg_Err(vd, "Cannot init DirectFB");
 102         free(sys);
 103         return VLC_EGENERIC;
 104     }
 105
 106     if (OpenDisplay(vd)) {
 107         msg_Err(vd, "Cannot create primary surface");
 108         Close(VLC_OBJECT(vd));
 109         return VLC_EGENERIC;
 110     }
 111
 112     /* */
 113     video_format_t fmt = vd->fmt;
 114
 115     switch (sys->pixel_format) {
 116     case DSPF_RGB332:
 117         /* 8 bit RGB (1 byte, red 3@5, green 3@2, blue 2@0) */
 118         fmt.i_chroma = VLC_CODEC_RGB8;
 119         fmt.i_rmask = 0x7 << 5;
 120         fmt.i_gmask = 0x7 << 2;
 121         fmt.i_bmask = 0x3 << 0;
 122         break;
 123     case DSPF_RGB16:
 124         /* 16 bit RGB (2 byte, red 5@11, green 6@5, blue 5@0) */
 125         fmt.i_chroma = VLC_CODEC_RGB16;
 126         fmt.i_rmask = 0x1f << 11;
 127         fmt.i_gmask = 0x3f <<  5;
 128         fmt.i_bmask = 0x1f <<  0;
 129         break;
 130     case DSPF_RGB24:
 131         /* 24 bit RGB (3 byte, red 8@16, green 8@8, blue 8@0) */
 132         fmt.i_chroma = VLC_CODEC_RGB24;
 133         fmt.i_rmask = 0xff << 16;
 134         fmt.i_gmask = 0xff <<  8;
 135         fmt.i_bmask = 0xff <<  0;
 136         break;
 137     case DSPF_RGB32:
 138         /* 24 bit RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */
 139         fmt.i_chroma = VLC_CODEC_RGB32;
 140         fmt.i_rmask = 0xff << 16;
 141         fmt.i_gmask = 0xff <<  8;
 142         fmt.i_bmask = 0xff <<  0;
 143         break;
 144     default:
 145         msg_Err(vd, "unknown screen depth %i", sys->pixel_format);
 146         Close(VLC_OBJECT(vd));
 147         return VLC_EGENERIC;
 148     }
 149
 150     fmt.i_width  = sys->width;
 151     fmt.i_height = sys->height;
 152
 153     /* */
 154     vout_display_info_t info = vd->info;
 155     info.has_hide_mouse = true;
 156
 157     /* */
 158     vd->fmt     = fmt;
 159     vd->info    = info;
 160     vd->pool    = Pool;
 161     vd->prepare = NULL;
 162     vd->display = Display;
 163     vd->control = Control;
 164     vd->manage  = Manage;
 165
 166     /* */
 167     vout_display_SendEventFullscreen(vd, true);
 168     vout_display_SendEventDisplaySize(vd, fmt.i_width, fmt.i_height, true);
 169     return VLC_SUCCESS;
 170 }
 171
 172 static void Close(vlc_object_t *object)
 173 {
 174     vout_display_t *vd = (vout_display_t *)object;
 175     vout_display_sys_t *sys = vd->sys;
 176
 177     if (sys->pool)
 178         picture_pool_Delete(sys->pool);
 179
 180     CloseDisplay(vd);
 181     free(sys);
 182 }
 183
 184 /* */
 185 static picture_pool_t *Pool(vout_display_t *vd, unsigned count)
 186 {
 187     vout_display_sys_t *sys = vd->sys;
 188
 189     if (!sys->pool)
 190         sys->pool = picture_pool_NewFromFormat(&vd->fmt, count);
 191     return sys->pool;
 192 }
 193
 194 static void Display(vout_display_t *vd, picture_t *picture)
 195 {
 196     vout_display_sys_t *sys = vd->sys;
 197
 198     IDirectFBSurface *primary = sys->primary;
 199
 200     void *pixels;
 201     int  pitch;
 202     if (primary->Lock(primary, DSLF_WRITE, &pixels, &pitch) == DFB_OK) {
 203         picture_resource_t rsc;
 204
 205         memset(&rsc, 0, sizeof(rsc));
 206         rsc.p[0].p_pixels = pixels;
 207         rsc.p[0].i_lines  = sys->height;
 208         rsc.p[0].i_pitch  = pitch;
 209
 210         picture_t *direct = picture_NewFromResource(&vd->fmt, &rsc);
 211         if (direct) {
 212             picture_Copy(direct, picture);
 213             picture_Release(direct);
 214         }
 215
 216         if (primary->Unlock(primary) == DFB_OK)
 217             primary->Flip(primary, NULL, 0);
 218     }
 219     picture_Release(picture);
 220 }
 221
 222 static int Control(vout_display_t *vd, int query, va_list args)
 223 {
 224     switch (query) {
 225     case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE: {
 226         const vout_display_cfg_t *cfg = va_arg(args, const vout_display_cfg_t *);
 227         if (cfg->display.width  != vd->fmt.i_width ||
 228             cfg->display.height != vd->fmt.i_height)
 229             return VLC_EGENERIC;
 230         return VLC_SUCCESS;
 231     }
 232     default:
 233         msg_Err(vd, "Unsupported query in vout display directfb");
 234         return VLC_EGENERIC;
 235     }
 236 }
 237
 238 static void Manage (vout_display_t *vd)
 239 {
 240     VLC_UNUSED(vd);
 241 }
 242
 243 static int OpenDisplay(vout_display_t *vd)
 244 {
 245     vout_display_sys_t *sys = vd->sys;
 246
 247     DFBSurfaceDescription dsc;
 248     /*dsc.flags = DSDESC_CAPS | DSDESC_HEIGHT | DSDESC_WIDTH;*/
 249     dsc.flags = DSDESC_CAPS;
 250     dsc.caps  = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
 251     /*dsc.width = 352;*/
 252     /*dsc.height = 240;*/
 253
 254     IDirectFB *directfb = NULL;
 255     if (DirectFBCreate(&directfb) != DFB_OK || !directfb)
 256         return VLC_EGENERIC;
 257     sys->directfb = directfb;
 258
 259     IDirectFBSurface *primary = NULL;
 260     if (directfb->CreateSurface(directfb, &dsc, &primary) || !primary)
 261         return VLC_EGENERIC;
 262     sys->primary = primary;
 263
 264     primary->GetSize(primary, &sys->width, &sys->height);
 265     primary->GetPixelFormat(primary, &sys->pixel_format);
 266     primary->FillRectangle(primary, 0, 0, sys->width, sys->height);
 267     primary->Flip(primary, NULL, 0);
 268
 269     return VLC_SUCCESS;
 270 }
 271
 272 static void CloseDisplay(vout_display_t *vd)
 273 {
 274     vout_display_sys_t *sys = vd->sys;
 275
 276     IDirectFBSurface *primary = sys->primary;
 277     if (primary)
 278         primary->Release(primary);
 279
 280     IDirectFB *directfb = sys->directfb;
 281     if (directfb)
 282         directfb->Release(directfb);
 283 }
 284