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

   1 /*****************************************************************************
   2  * window.c: "vout window" managment
   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 #include <assert.h>
  31
  32 #include <vlc_common.h>
  33 #include <vlc_vout_window.h>
  34 #include <vlc_modules.h>
  35 #include "inhibit.h"
  36 #include <libvlc.h>
  37
  38 typedef struct
  39 {
  40     vout_window_t wnd;
  41     module_t *module;
  42     vlc_inhibit_t *inhibit;
  43 } window_t;
  44
  45 static int vout_window_start(void *func, va_list ap)
  46 {
  47     int (*activate)(vout_window_t *, const vout_window_cfg_t *) = func;
  48     vout_window_t *wnd = va_arg(ap, vout_window_t *);
  49     const vout_window_cfg_t *cfg = va_arg(ap, const vout_window_cfg_t *);
  50
  51     return activate(wnd, cfg);
  52 }
  53
  54 vout_window_t *vout_window_New(vlc_object_t *obj, const char *module,
  55                                const vout_window_cfg_t *cfg,
  56                                const vout_window_owner_t *owner)
  57 {
  58     window_t *w = vlc_custom_create(obj, sizeof(*w), "window");
  59     vout_window_t *window = &w->wnd;
  60
  61     memset(&window->handle, 0, sizeof(window->handle));
  62     window->control = NULL;
  63     window->sys = NULL;
  64
  65     if (owner != NULL)
  66         window->owner = *owner;
  67     else
  68         window->owner.resized = NULL;
  69
  70     w->module = vlc_module_load(window, "vout window", module,
  71                                 module && *module,
  72                                 vout_window_start, window, cfg);
  73     if (!w->module) {
  74         vlc_object_release(window);
  75         return NULL;
  76     }
  77
  78     /* Hook for screensaver inhibition */
  79     if (var_InheritBool(obj, "disable-screensaver") &&
  80         window->type == VOUT_WINDOW_TYPE_XID) {
  81         w->inhibit = vlc_inhibit_Create(VLC_OBJECT (window));
  82         if (w->inhibit != NULL)
  83             vlc_inhibit_Set(w->inhibit, VLC_INHIBIT_VIDEO);
  84             /* FIXME: ^ wait for vout activation, pause */
  85     }
  86     else
  87         w->inhibit = NULL;
  88     return window;
  89 }
  90
  91 static void vout_window_stop(void *func, va_list ap)
  92 {
  93     int (*deactivate)(vout_window_t *) = func;
  94     vout_window_t *wnd = va_arg(ap, vout_window_t *);
  95
  96     deactivate(wnd);
  97 }
  98
  99 void vout_window_Delete(vout_window_t *window)
 100 {
 101     if (!window)
 102         return;
 103
 104     window_t *w = (window_t *)window;
 105     if (w->inhibit)
 106     {
 107         vlc_inhibit_Set (w->inhibit, VLC_INHIBIT_NONE);
 108         vlc_inhibit_Destroy (w->inhibit);
 109     }
 110
 111     vlc_module_unload(w->module, vout_window_stop, window);
 112     vlc_object_release(window);
 113 }
 114
 115 /* Video output display integration */
 116 #include <vlc_vout.h>
 117 #include <vlc_vout_display.h>
 118 #include "window.h"
 119 #include "event.h"
 120
 121 typedef struct vout_display_window
 122 {
 123     vout_display_t *vd;
 124     unsigned width;
 125     unsigned height;
 126
 127     vlc_mutex_t lock;
 128 } vout_display_window_t;
 129
 130 static void vout_display_window_ResizeNotify(vout_window_t *window,
 131                                              unsigned width, unsigned height)
 132 {
 133     vout_display_window_t *state = window->owner.sys;
 134
 135     msg_Dbg(window, "resized to %ux%u", width, height);
 136     vlc_mutex_lock(&state->lock);
 137     state->width = width;
 138     state->height = height;
 139
 140     if (state->vd != NULL)
 141         vout_display_SendEventDisplaySize(state->vd, width, height);
 142     vlc_mutex_unlock(&state->lock);
 143 }
 144
 145 static void vout_display_window_CloseNotify(vout_window_t *window)
 146 {
 147     vout_thread_t *vout = (vout_thread_t *)window->p_parent;
 148
 149     vout_SendEventClose(vout);
 150 }
 151
 152 /**
 153  * Creates a video window, initially without any attached display.
 154  */
 155 vout_window_t *vout_display_window_New(vout_thread_t *vout,
 156                                        const vout_window_cfg_t *cfg)
 157 {
 158     vout_display_window_t *state = malloc(sizeof (*state));
 159     if (state == NULL)
 160         return NULL;
 161
 162     state->vd = NULL;
 163     state->width = cfg->width;
 164     state->height = cfg->height;
 165     vlc_mutex_init(&state->lock);
 166
 167     vout_window_owner_t owner = {
 168         .sys = state,
 169         .resized = vout_display_window_ResizeNotify,
 170         .closed = vout_display_window_CloseNotify,
 171     };
 172     vout_window_t *window;
 173
 174     window = vout_window_New((vlc_object_t *)vout, "$window", cfg, &owner);
 175     if (window == NULL) {
 176         vlc_mutex_destroy(&state->lock);
 177         free(state);
 178     }
 179     return window;
 180 }
 181
 182 /**
 183  * Attaches a window to a display. Window events will be dispatched to the
 184  * display until they are detached.
 185  */
 186 void vout_display_window_Attach(vout_window_t *window, vout_display_t *vd)
 187 {
 188     vout_display_window_t *state = window->owner.sys;
 189
 190     vout_window_SetSize(window,
 191                         vd->cfg->display.width, vd->cfg->display.height);
 192
 193     vlc_mutex_lock(&state->lock);
 194     state->vd = vd;
 195
 196     vout_display_SendEventDisplaySize(vd, state->width, state->height);
 197     vlc_mutex_unlock(&state->lock);
 198 }
 199
 200 /**
 201  * Detaches a window from a display. Window events will no longer be dispatched
 202  * (except those that do not need a display).
 203  */
 204 void vout_display_window_Detach(vout_window_t *window)
 205 {
 206     vout_display_window_t *state = window->owner.sys;
 207
 208     vlc_mutex_lock(&state->lock);
 209     state->vd = NULL;
 210     vlc_mutex_unlock(&state->lock);
 211 }
 212
 213 /**
 214  * Destroys a video window.
 215  * \note The window must be detached.
 216  */
 217 void vout_display_window_Delete(vout_window_t *window)
 218 {
 219     vout_display_window_t *state = window->owner.sys;
 220
 221     vout_window_Delete(window);
 222
 223     assert(state->vd == NULL);
 224     vlc_mutex_destroy(&state->lock);
 225     free(state);
 226 }