git.sesse.net Git - vlc/blob - 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
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; either version 2 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 General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU 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 static int  OpenDisplay (vout_display_t *);
  66 static void CloseDisplay(vout_display_t *);
  67
  68 /* */
  69 struct vout_display_sys_t {
  70     /* */
  71     IDirectFB             *directfb;
  72     IDirectFBSurface      *primary;
  73     DFBSurfacePixelFormat pixel_format;
  74
  75     /* */
  76     int width;
  77     int height;
  78
  79     /* */
  80     picture_pool_t *pool;
  81 };
  82
  83 /* */
  84 static int Open(vlc_object_t *object)
  85 {
  86     vout_display_t *vd = (vout_display_t *)object;
  87     vout_display_sys_t *sys;
  88
  89     /* Allocate structure */
  90     vd->sys = sys = malloc(sizeof(*sys));
  91     if (!sys)
  92         return VLC_ENOMEM;
  93
  94     sys->directfb = NULL;
  95     sys->primary  = NULL;
  96     sys->width    = 0;
  97     sys->height   = 0;
  98     sys->pool     = NULL;
  99
 100     /* Init DirectFB */
 101     if (DirectFBInit(NULL,NULL) != DFB_OK) {
 102         msg_Err(vd, "Cannot init DirectFB");
 103         free(sys);
 104         return VLC_EGENERIC;
 105     }
 106
 107     if (OpenDisplay(vd)) {
 108         msg_Err(vd, "Cannot create primary surface");
 109         Close(VLC_OBJECT(vd));
 110         return VLC_EGENERIC;
 111     }
 112     vout_display_DeleteWindow(vd, NULL);
 113
 114     /* */
 115     video_format_t fmt = vd->fmt;
 116
 117     switch (sys->pixel_format) {
 118     case DSPF_RGB332:
 119         /* 8 bit RGB (1 byte, red 3@5, green 3@2, blue 2@0) */
 120         fmt.i_chroma = VLC_CODEC_RGB8;
 121         fmt.i_rmask = 0x7 << 5;
 122         fmt.i_gmask = 0x7 << 2;
 123         fmt.i_bmask = 0x3 << 0;
 124         break;
 125     case DSPF_RGB16:
 126         /* 16 bit RGB (2 byte, red 5@11, green 6@5, blue 5@0) */
 127         fmt.i_chroma = VLC_CODEC_RGB16;
 128         fmt.i_rmask = 0x1f << 11;
 129         fmt.i_gmask = 0x3f <<  5;
 130         fmt.i_bmask = 0x1f <<  0;
 131         break;
 132     case DSPF_RGB24:
 133         /* 24 bit RGB (3 byte, red 8@16, green 8@8, blue 8@0) */
 134         fmt.i_chroma = VLC_CODEC_RGB24;
 135         fmt.i_rmask = 0xff << 16;
 136         fmt.i_gmask = 0xff <<  8;
 137         fmt.i_bmask = 0xff <<  0;
 138         break;
 139     case DSPF_RGB32:
 140         /* 24 bit RGB (4 byte, nothing@24, red 8@16, green 8@8, blue 8@0) */
 141         fmt.i_chroma = VLC_CODEC_RGB32;
 142         fmt.i_rmask = 0xff << 16;
 143         fmt.i_gmask = 0xff <<  8;
 144         fmt.i_bmask = 0xff <<  0;
 145         break;
 146     default:
 147         msg_Err(vd, "unknown screen depth %i", sys->pixel_format);
 148         Close(VLC_OBJECT(vd));
 149         return VLC_EGENERIC;
 150     }
 151
 152     fmt.i_width  = sys->width;
 153     fmt.i_height = sys->height;
 154
 155     /* */
 156     vout_display_info_t info = vd->info;
 157     info.has_hide_mouse = true;
 158
 159     /* */
 160     vd->fmt     = fmt;
 161     vd->info    = info;
 162     vd->pool    = Pool;
 163     vd->prepare = NULL;
 164     vd->display = Display;
 165     vd->control = Control;
 166     vd->manage  = Manage;
 167
 168     /* */
 169     vout_display_SendEventFullscreen(vd, true);
 170     vout_display_SendEventDisplaySize(vd, fmt.i_width, fmt.i_height, true);
 171     return VLC_SUCCESS;
 172 }
 173
 174 static void Close(vlc_object_t *object)
 175 {
 176     vout_display_t *vd = (vout_display_t *)object;
 177     vout_display_sys_t *sys = vd->sys;
 178
 179     if (sys->pool)
 180         picture_pool_Delete(sys->pool);
 181
 182     CloseDisplay(vd);
 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  = sys->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 }
 240
 241 static void Manage (vout_display_t *vd)
 242 {
 243     VLC_UNUSED(vd);
 244 }
 245
 246 static int OpenDisplay(vout_display_t *vd)
 247 {
 248     vout_display_sys_t *sys = vd->sys;
 249
 250     DFBSurfaceDescription dsc;
 251     /*dsc.flags = DSDESC_CAPS | DSDESC_HEIGHT | DSDESC_WIDTH;*/
 252     dsc.flags = DSDESC_CAPS;
 253     dsc.caps  = DSCAPS_PRIMARY | DSCAPS_FLIPPING;
 254     /*dsc.width = 352;*/
 255     /*dsc.height = 240;*/
 256
 257     IDirectFB *directfb = NULL;
 258     if (DirectFBCreate(&directfb) != DFB_OK || !directfb)
 259         return VLC_EGENERIC;
 260     sys->directfb = directfb;
 261
 262     IDirectFBSurface *primary = NULL;
 263     if (directfb->CreateSurface(directfb, &dsc, &primary) || !primary)
 264         return VLC_EGENERIC;
 265     sys->primary = primary;
 266
 267     primary->GetSize(primary, &sys->width, &sys->height);
 268     primary->GetPixelFormat(primary, &sys->pixel_format);
 269     primary->FillRectangle(primary, 0, 0, sys->width, sys->height);
 270     primary->Flip(primary, NULL, 0);
 271
 272     return VLC_SUCCESS;
 273 }
 274
 275 static void CloseDisplay(vout_display_t *vd)
 276 {
 277     vout_display_sys_t *sys = vd->sys;
 278
 279     IDirectFBSurface *primary = sys->primary;
 280     if (primary)
 281         primary->Release(primary);
 282
 283     IDirectFB *directfb = sys->directfb;
 284     if (directfb)
 285         directfb->Release(directfb);
 286 }
 287