git.sesse.net Git - vlc/blob - src/video_output/vout_wrapper.c

   1 /*****************************************************************************
   2  * vout_display.c: "vout display" -> "video output" wrapper
   3  *****************************************************************************
   4  * Copyright (C) 2009 Laurent Aimar
   5  * $Id$
   6  *
   7  * Authors: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify it
  10  * under the terms of the GNU Lesser General Public License as published by
  11  * the Free Software Foundation; either version 2.1 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  17  * GNU Lesser General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public License
  20  * along with this program; if not, write to the Free Software Foundation,
  21  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc_common.h>
  32 #include <vlc_plugin.h>
  33 #include <vlc_vout_wrapper.h>
  34 #include <vlc_vout.h>
  35 #include <assert.h>
  36 #include "vout_internal.h"
  37 #include "display.h"
  38
  39 /*****************************************************************************
  40  * Local prototypes
  41  *****************************************************************************/
  42 #ifdef WIN32
  43 static int  Forward(vlc_object_t *, char const *,
  44                     vlc_value_t, vlc_value_t, void *);
  45 #endif
  46
  47 /*****************************************************************************
  48  *
  49  *****************************************************************************/
  50 int vout_OpenWrapper(vout_thread_t *vout,
  51                      const char *splitter_name, const vout_display_state_t *state)
  52 {
  53     vout_thread_sys_t *sys = vout->p;
  54     msg_Dbg(vout, "Opening vout display wrapper");
  55
  56     /* */
  57     sys->display.title = var_CreateGetNonEmptyString(vout, "video-title");
  58
  59     /* */
  60     const mtime_t double_click_timeout = 300000;
  61     const mtime_t hide_timeout = var_CreateGetInteger(vout, "mouse-hide-timeout") * 1000;
  62
  63     if (splitter_name) {
  64         sys->display.vd = vout_NewSplitter(vout, &vout->p->original, state, "$vout", splitter_name,
  65                                            double_click_timeout, hide_timeout);
  66     } else {
  67         sys->display.vd = vout_NewDisplay(vout, &vout->p->original, state, "$vout",
  68                                           double_click_timeout, hide_timeout);
  69     }
  70     if (!sys->display.vd) {
  71         free(sys->display.title);
  72         return VLC_EGENERIC;
  73     }
  74
  75     /* */
  76 #ifdef WIN32
  77     var_Create(vout, "direct3d-desktop", VLC_VAR_BOOL|VLC_VAR_DOINHERIT);
  78     var_AddCallback(vout, "direct3d-desktop", Forward, NULL);
  79     var_Create(vout, "video-wallpaper", VLC_VAR_BOOL|VLC_VAR_DOINHERIT);
  80     var_AddCallback(vout, "video-wallpaper", Forward, NULL);
  81 #endif
  82
  83     /* */
  84     sys->decoder_pool = NULL;
  85
  86     return VLC_SUCCESS;
  87 }
  88
  89 /*****************************************************************************
  90  *
  91  *****************************************************************************/
  92 void vout_CloseWrapper(vout_thread_t *vout, vout_display_state_t *state)
  93 {
  94     vout_thread_sys_t *sys = vout->p;
  95
  96 #ifdef WIN32
  97     var_DelCallback(vout, "direct3d-desktop", Forward, NULL);
  98     var_DelCallback(vout, "video-wallpaper", Forward, NULL);
  99 #endif
 100     sys->decoder_pool = NULL; /* FIXME remove */
 101
 102     vout_DeleteDisplay(sys->display.vd, state);
 103     free(sys->display.title);
 104 }
 105
 106 /*****************************************************************************
 107  *
 108  *****************************************************************************/
 109 /* Minimum number of display picture */
 110 #define DISPLAY_PICTURE_COUNT (1)
 111
 112 static void NoDrInit(vout_thread_t *vout)
 113 {
 114     vout_thread_sys_t *sys = vout->p;
 115
 116     if (sys->display.use_dr)
 117         sys->display_pool = vout_display_Pool(sys->display.vd, 3);
 118     else
 119         //sys->display_pool = picture_pool_Reserve(sys->decoder_pool, DISPLAY_PICTURE_COUNT);
 120         sys->display_pool = picture_pool_NewFromFormat(&sys->display.vd->source, DISPLAY_PICTURE_COUNT);
 121 }
 122 static void NoDrClean(vout_thread_t *vout)
 123 {
 124     vout_thread_sys_t *sys = vout->p;
 125
 126     if (!sys->display.use_dr)
 127         picture_pool_Delete(sys->display_pool);
 128 }
 129 int vout_InitWrapper(vout_thread_t *vout)
 130 {
 131     vout_thread_sys_t *sys = vout->p;
 132     vout_display_t *vd = sys->display.vd;
 133     video_format_t source = vd->source;
 134
 135     sys->display.use_dr = !vout_IsDisplayFiltered(vd);
 136     const bool allow_dr = !vd->info.has_pictures_invalid && !vd->info.is_slow && sys->display.use_dr;
 137     const unsigned private_picture  = 4; /* XXX 3 for filter, 1 for SPU */
 138     const unsigned decoder_picture  = 1 + sys->dpb_size;
 139     const unsigned kept_picture     = 1; /* last displayed picture */
 140     const unsigned reserved_picture = DISPLAY_PICTURE_COUNT +
 141                                       private_picture +
 142                                       kept_picture;
 143     picture_pool_t *display_pool =
 144         vout_display_Pool(vd, allow_dr ? __MAX(VOUT_MAX_PICTURES,
 145                                                reserved_picture + decoder_picture) : 3);
 146     if (allow_dr &&
 147         picture_pool_GetSize(display_pool) >= reserved_picture + decoder_picture) {
 148         sys->dpb_size     = picture_pool_GetSize(display_pool) - reserved_picture;
 149         sys->decoder_pool = display_pool;
 150         sys->display_pool = display_pool;
 151     } else if (!sys->decoder_pool) {
 152         sys->decoder_pool =
 153             picture_pool_NewFromFormat(&source,
 154                                        __MAX(VOUT_MAX_PICTURES,
 155                                              reserved_picture + decoder_picture - DISPLAY_PICTURE_COUNT));
 156         if (allow_dr) {
 157             msg_Warn(vout, "Not enough direct buffers, using system memory");
 158             sys->dpb_size = 0;
 159         } else {
 160             sys->dpb_size = picture_pool_GetSize(sys->decoder_pool) - reserved_picture;
 161         }
 162         NoDrInit(vout);
 163     }
 164     sys->private_pool = picture_pool_Reserve(sys->decoder_pool, private_picture);
 165     sys->display.filtered = NULL;
 166     return VLC_SUCCESS;
 167 }
 168
 169 /*****************************************************************************
 170  *
 171  *****************************************************************************/
 172 void vout_EndWrapper(vout_thread_t *vout)
 173 {
 174     vout_thread_sys_t *sys = vout->p;
 175
 176     assert(!sys->display.filtered);
 177     if (sys->private_pool)
 178         picture_pool_Delete(sys->private_pool);
 179
 180     if (sys->decoder_pool != sys->display_pool) {
 181         NoDrClean(vout);
 182         picture_pool_Delete(sys->decoder_pool);
 183     }
 184 }
 185
 186 /*****************************************************************************
 187  *
 188  *****************************************************************************/
 189 void vout_ManageWrapper(vout_thread_t *vout)
 190 {
 191     vout_thread_sys_t *sys = vout->p;
 192     vout_display_t *vd = sys->display.vd;
 193
 194     bool reset_display_pool = sys->display.use_dr && vout_AreDisplayPicturesInvalid(vd);
 195     vout_ManageDisplay(vd, !sys->display.use_dr || reset_display_pool);
 196
 197     if (reset_display_pool) {
 198         NoDrClean(vout);
 199
 200         sys->display.use_dr = !vout_IsDisplayFiltered(vd);
 201         NoDrInit(vout);
 202     }
 203 }
 204
 205 #ifdef WIN32
 206 static int Forward(vlc_object_t *object, char const *var,
 207                    vlc_value_t oldval, vlc_value_t newval, void *data)
 208 {
 209     vout_thread_t *vout = (vout_thread_t*)object;
 210
 211     VLC_UNUSED(oldval);
 212     VLC_UNUSED(data);
 213     return var_Set(vout->p->display.vd, var, newval);
 214 }
 215 #endif
 216