src/video_output/event.h

   1 /*****************************************************************************
   2  * event.h: vout event
   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
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 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 General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 #if defined(__PLUGIN__) || defined(__BUILTIN__) || !defined(__LIBVLC__)
  25 # error This header file can only be included from LibVLC.
  26 #endif
  27
  28 #include <vlc_common.h>
  29 #include <vlc_playlist.h>
  30 #include <math.h>
  31
  32 #include "vout_control.h"
  33
  34 /* TODO/FIXME
  35  *
  36  * It should be converted to something like input_thread_t:
  37  * one intf-event can be grabbed by a callback, all others
  38  * variable only var_Change
  39  *
  40  * Maybe a intf-mouse can be used too (don't like it).
  41  *
  42  * (Some case may infinite loop otherwise here)
  43  */
  44
  45 static inline void vout_SendEventClose(vout_thread_t *vout)
  46 {
  47     /* Ask to stop
  48      * FIXME works only for input handled by the playlist
  49      */
  50     playlist_t *playlist = pl_Get(vout);
  51     playlist_Stop(playlist);
  52 }
  53 static inline void vout_SendEventKey(vout_thread_t *vout, int key)
  54 {
  55     var_SetInteger(vout->p_libvlc, "key-pressed", key);
  56 }
  57 static inline void vout_SendEventMouseMoved(vout_thread_t *vout, int x, int y)
  58 {
  59     var_SetCoords(vout, "mouse-moved", x, y);
  60 }
  61 static inline void vout_SendEventMousePressed(vout_thread_t *vout, int button)
  62 {
  63     var_OrInteger(vout, "mouse-button-down", 1 << button);
  64
  65     switch (button)
  66     {
  67     case MOUSE_BUTTON_LEFT:
  68     {
  69         /* FIXME? */
  70         int x, y;
  71         var_GetCoords(vout, "mouse-moved", &x, &y);
  72         var_SetCoords(vout, "mouse-clicked", x, y);
  73         var_SetBool(vout->p_libvlc, "intf-popupmenu", false);
  74         break;
  75     }
  76     case MOUSE_BUTTON_CENTER:
  77         var_ToggleBool(vout->p_libvlc, "intf-show");
  78         break;
  79     case MOUSE_BUTTON_RIGHT:
  80         var_SetBool(vout->p_libvlc, "intf-popupmenu", true);
  81         break;
  82     }
  83 }
  84 static inline void vout_SendEventMouseReleased(vout_thread_t *vout, int button)
  85 {
  86     var_NAndInteger(vout, "mouse-button-down", 1 << button);
  87 }
  88 static inline void vout_SendEventMouseDoubleClick(vout_thread_t *vout)
  89 {
  90     //vout_ControlSetFullscreen(vout, !var_GetBool(vout, "fullscreen"));
  91     //var_ToggleBool(vout, "fullscreen");
  92     var_SetInteger(vout->p_libvlc, "key-action", ACTIONID_TOGGLE_FULLSCREEN);
  93 }
  94 static inline void vout_SendEventMouseVisible(vout_thread_t *vout)
  95 {
  96     /* TODO */
  97     VLC_UNUSED(vout);
  98 }
  99 static inline void vout_SendEventMouseHidden(vout_thread_t *vout)
 100 {
 101     /* TODO */
 102     VLC_UNUSED(vout);
 103 }
 104
 105 static inline void vout_SendEventFullscreen(vout_thread_t *vout, bool is_fullscreen)
 106 {
 107     var_SetBool(vout, "fullscreen", is_fullscreen);
 108 }
 109
 110 static inline void vout_SendEventDisplayFilled(vout_thread_t *vout, bool is_display_filled)
 111 {
 112     if (!var_GetBool(vout, "autoscale") != !is_display_filled)
 113         var_SetBool(vout, "autoscale", is_display_filled);
 114 }
 115
 116 static inline void vout_SendEventZoom(vout_thread_t *vout, int num, int den)
 117 {
 118     VLC_UNUSED(vout);
 119     VLC_UNUSED(num);
 120     VLC_UNUSED(den);
 121     /* FIXME deadlock problems with current vout */
 122 #if 0
 123     const float zoom = (float)num / (float)den;
 124
 125     /* XXX 0.1% is arbitrary */
 126     if (fabs(zoom - var_GetFloat(vout, "scale")) > 0.001)
 127         var_SetFloat(vout, "scale", zoom);
 128 #endif
 129 }
 130
 131 static inline void vout_SendEventOnTop(vout_thread_t *vout, bool is_on_top)
 132 {
 133     VLC_UNUSED(vout);
 134     VLC_UNUSED(is_on_top);
 135     /* FIXME deadlock problems with current vout */
 136 #if 0
 137
 138     if (!var_GetBool(vout, "video-on-top") != !is_on_top)
 139         var_SetBool(vout, "video-on-top", is_on_top);
 140 #endif
 141 }
 142
 143 /**
 144  * It must be called on source aspect ratio changes, with the new DAR (Display
 145  * Aspect Ratio) value.
 146  */
 147 static inline void vout_SendEventSourceAspect(vout_thread_t *vout,
 148                                               unsigned num, unsigned den)
 149 {
 150     VLC_UNUSED(vout);
 151     VLC_UNUSED(num);
 152     VLC_UNUSED(den);
 153     /* FIXME the value stored in "aspect-ratio" are not reduced
 154      * creating a lot of problems here */
 155 #if 0
 156     char *ar;
 157     if (num > 0 && den > 0) {
 158         if (asprintf(&ar, "%u:%u", num, den) < 0)
 159             return;
 160     } else {
 161         ar = strdup("");
 162     }
 163
 164     char *current = var_GetString(vout, "aspect-ratio");
 165     msg_Err(vout, "vout_SendEventSourceAspect %s -> %s", current, ar);
 166     if (ar && current && strcmp(ar, current))
 167         var_SetString(vout, "aspect-ratio", ar);
 168
 169     free(current);
 170     free(ar);
 171 #endif
 172 }
 173 static inline void vout_SendEventSourceCrop(vout_thread_t *vout,
 174                                             unsigned num, unsigned den,
 175                                             unsigned left, unsigned top,
 176                                             unsigned right, unsigned bottom)
 177 {
 178     VLC_UNUSED(num);
 179     VLC_UNUSED(den);
 180
 181     vlc_value_t val;
 182
 183     /* I cannot use var_Set here, infinite loop otherwise */
 184
 185     /* */
 186     val.i_int = left;
 187     var_Change(vout, "crop-left",   VLC_VAR_SETVALUE, &val, NULL);
 188     val.i_int = top;
 189     var_Change(vout, "crop-top",    VLC_VAR_SETVALUE, &val, NULL);
 190     val.i_int = right;
 191     var_Change(vout, "crop-right",  VLC_VAR_SETVALUE, &val, NULL);
 192     val.i_int = bottom;
 193     var_Change(vout, "crop-bottom", VLC_VAR_SETVALUE, &val, NULL);
 194
 195     /* FIXME the value stored in "crop" are not reduced
 196      * creating a lot of problems here */
 197 #if 0
 198     char *crop;
 199     if (num > 0 && den > 0) {
 200         if (asprintf(&crop, "%u:%u", num, den) < 0)
 201             crop = NULL;
 202     } else if (left > 0 || top > 0 || right > 0 || bottom > 0) {
 203         if (asprintf(&crop, "%u+%u+%u+%u", left, top, right, bottom) < 0)
 204             crop = NULL;
 205     } else {
 206         crop = strdup("");
 207     }
 208     if (crop) {
 209         val.psz_string = crop;
 210         var_Change(vout, "crop", VLC_VAR_SETVALUE, &val, NULL);
 211         free(crop);
 212     }
 213 #endif
 214 }
 215 #if 0
 216 static inline void vout_SendEventSnapshot(vout_thread_t *vout, const char *filename)
 217 {
 218     /* signal creation of a new snapshot file */
 219     var_SetString(vout->p_libvlc, "snapshot-file", filename);
 220 }
 221
 222 #warning "FIXME clean up postproc event"
 223
 224 extern void vout_InstallDeprecatedPostProcessing(vout_thread_t *);
 225 extern void vout_UninstallDeprecatedPostProcessing(vout_thread_t *);
 226
 227 static inline void vout_SendEventPostProcessing(vout_thread_t *vout, bool is_available)
 228 {
 229     if (is_available)
 230         vout_InstallDeprecatedPostProcessing(vout);
 231     else
 232         vout_UninstallDeprecatedPostProcessing(vout);
 233 }
 234
 235 static inline void vout_SendEventFilters(vout_thread_t *vout)
 236 {
 237     vout_filter_t **filter;
 238     int           filter_count;
 239
 240     vout_ControlGetFilters(vout, &filter, &filter_count);
 241
 242     char *list = strdup("");
 243     for (int i = 0; i < filter_count; i++) {
 244         char *psz;
 245
 246         if (asprintf(&psz, "%s%s%s",
 247                      list, i > 0 ? ":" : "", filter[i]->name) < 0) {
 248             free(list);
 249             list = NULL;
 250             break;
 251         }
 252         free(list);
 253         list = psz;
 254     }
 255
 256     if (list) {
 257         vlc_value_t val;
 258         val.psz_string = list;
 259         var_Change(vout, "video-filter", VLC_VAR_SETVALUE, &val, NULL);
 260         free(list);
 261     }
 262
 263     for (int i = 0; i < filter_count; i++)
 264         vout_filter_Delete(filter[i]);
 265     free(filter);
 266 }
 267 #endif