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 #include <vlc_common.h>
  25 #include <vlc_playlist.h>
  26 #include <math.h>
  27
  28 #include "vout_control.h"
  29
  30 /* TODO/FIXME
  31  *
  32  * It should be converted to something like input_thread_t:
  33  * one intf-event can be grabbed by a callback, all others
  34  * variable only var_Change
  35  *
  36  * Maybe a intf-mouse can be used too (don't like it).
  37  *
  38  * (Some case may infinite loop otherwise here)
  39  */
  40
  41 static inline void vout_SendEventClose(vout_thread_t *vout)
  42 {
  43     /* Ask to stop
  44      * FIXME works only for input handled by the playlist
  45      */
  46     playlist_t *playlist = pl_Get(vout);
  47     playlist_Stop(playlist);
  48 }
  49 static inline void vout_SendEventKey(vout_thread_t *vout, int key)
  50 {
  51     var_SetInteger(vout->p_libvlc, "key-pressed", key);
  52 }
  53 static inline void vout_SendEventMouseMoved(vout_thread_t *vout, int x, int y)
  54 {
  55     var_SetCoords(vout, "mouse-moved", x, y);
  56 }
  57 static inline void vout_SendEventMousePressed(vout_thread_t *vout, int button)
  58 {
  59     int key;
  60     var_OrInteger(vout, "mouse-button-down", 1 << button);
  61
  62     switch (button)
  63     {
  64     case MOUSE_BUTTON_LEFT:
  65     {
  66         /* FIXME? */
  67         int x, y;
  68         var_GetCoords(vout, "mouse-moved", &x, &y);
  69         var_SetCoords(vout, "mouse-clicked", x, y);
  70         var_SetBool(vout->p_libvlc, "intf-popupmenu", false);
  71         return;
  72     }
  73     case MOUSE_BUTTON_CENTER:
  74         var_ToggleBool(vout->p_libvlc, "intf-toggle-fscontrol");
  75         return;
  76     case MOUSE_BUTTON_RIGHT:
  77         var_SetBool(vout->p_libvlc, "intf-popupmenu", true);
  78         return;
  79     case MOUSE_BUTTON_WHEEL_UP:    key = KEY_MOUSEWHEELUP;    break;
  80     case MOUSE_BUTTON_WHEEL_DOWN:  key = KEY_MOUSEWHEELDOWN;  break;
  81     case MOUSE_BUTTON_WHEEL_LEFT:  key = KEY_MOUSEWHEELLEFT;  break;
  82     case MOUSE_BUTTON_WHEEL_RIGHT: key = KEY_MOUSEWHEELRIGHT; break;
  83     }
  84     vout_SendEventKey(vout, key);
  85 }
  86 static inline void vout_SendEventMouseReleased(vout_thread_t *vout, int button)
  87 {
  88     var_NAndInteger(vout, "mouse-button-down", 1 << button);
  89 }
  90 static inline void vout_SendEventMouseDoubleClick(vout_thread_t *vout)
  91 {
  92     //vout_ControlSetFullscreen(vout, !var_GetBool(vout, "fullscreen"));
  93     //var_ToggleBool(vout, "fullscreen");
  94     var_SetInteger(vout->p_libvlc, "key-action", ACTIONID_TOGGLE_FULLSCREEN);
  95 }
  96 static inline void vout_SendEventMouseVisible(vout_thread_t *vout)
  97 {
  98     /* TODO */
  99     VLC_UNUSED(vout);
 100 }
 101 static inline void vout_SendEventMouseHidden(vout_thread_t *vout)
 102 {
 103     /* TODO */
 104     VLC_UNUSED(vout);
 105 }
 106
 107 static inline void vout_SendEventFullscreen(vout_thread_t *vout, bool is_fullscreen)
 108 {
 109     var_SetBool(vout, "fullscreen", is_fullscreen);
 110 }
 111
 112 static inline void vout_SendEventDisplayFilled(vout_thread_t *vout, bool is_display_filled)
 113 {
 114     if (!var_GetBool(vout, "autoscale") != !is_display_filled)
 115         var_SetBool(vout, "autoscale", is_display_filled);
 116 }
 117
 118 static inline void vout_SendEventZoom(vout_thread_t *vout, int num, int den)
 119 {
 120     VLC_UNUSED(vout);
 121     VLC_UNUSED(num);
 122     VLC_UNUSED(den);
 123     /* FIXME deadlock problems with current vout */
 124 #if 0
 125     const float zoom = (float)num / (float)den;
 126
 127     /* XXX 0.1% is arbitrary */
 128     if (fabs(zoom - var_GetFloat(vout, "scale")) > 0.001)
 129         var_SetFloat(vout, "scale", zoom);
 130 #endif
 131 }
 132
 133 static inline void vout_SendEventOnTop(vout_thread_t *vout, bool is_on_top)
 134 {
 135     VLC_UNUSED(vout);
 136     VLC_UNUSED(is_on_top);
 137     /* FIXME deadlock problems with current vout */
 138 #if 0
 139
 140     if (!var_GetBool(vout, "video-on-top") != !is_on_top)
 141         var_SetBool(vout, "video-on-top", is_on_top);
 142 #endif
 143 }
 144
 145 /**
 146  * It must be called on source aspect ratio changes, with the new DAR (Display
 147  * Aspect Ratio) value.
 148  */
 149 static inline void vout_SendEventSourceAspect(vout_thread_t *vout,
 150                                               unsigned num, unsigned den)
 151 {
 152     VLC_UNUSED(vout);
 153     VLC_UNUSED(num);
 154     VLC_UNUSED(den);
 155     /* FIXME the value stored in "aspect-ratio" are not reduced
 156      * creating a lot of problems here */
 157 #if 0
 158     char *ar;
 159     if (num > 0 && den > 0) {
 160         if (asprintf(&ar, "%u:%u", num, den) < 0)
 161             return;
 162     } else {
 163         ar = strdup("");
 164     }
 165
 166     char *current = var_GetString(vout, "aspect-ratio");
 167     msg_Err(vout, "vout_SendEventSourceAspect %s -> %s", current, ar);
 168     if (ar && current && strcmp(ar, current))
 169         var_SetString(vout, "aspect-ratio", ar);
 170
 171     free(current);
 172     free(ar);
 173 #endif
 174 }
 175 static inline void vout_SendEventSourceCrop(vout_thread_t *vout,
 176                                             unsigned num, unsigned den,
 177                                             unsigned left, unsigned top,
 178                                             unsigned right, unsigned bottom)
 179 {
 180     VLC_UNUSED(num);
 181     VLC_UNUSED(den);
 182
 183     vlc_value_t val;
 184
 185     /* I cannot use var_Set here, infinite loop otherwise */
 186
 187     /* */
 188     val.i_int = left;
 189     var_Change(vout, "crop-left",   VLC_VAR_SETVALUE, &val, NULL);
 190     val.i_int = top;
 191     var_Change(vout, "crop-top",    VLC_VAR_SETVALUE, &val, NULL);
 192     val.i_int = right;
 193     var_Change(vout, "crop-right",  VLC_VAR_SETVALUE, &val, NULL);
 194     val.i_int = bottom;
 195     var_Change(vout, "crop-bottom", VLC_VAR_SETVALUE, &val, NULL);
 196
 197     /* FIXME the value stored in "crop" are not reduced
 198      * creating a lot of problems here */
 199 #if 0
 200     char *crop;
 201     if (num > 0 && den > 0) {
 202         if (asprintf(&crop, "%u:%u", num, den) < 0)
 203             crop = NULL;
 204     } else if (left > 0 || top > 0 || right > 0 || bottom > 0) {
 205         if (asprintf(&crop, "%u+%u+%u+%u", left, top, right, bottom) < 0)
 206             crop = NULL;
 207     } else {
 208         crop = strdup("");
 209     }
 210     if (crop) {
 211         val.psz_string = crop;
 212         var_Change(vout, "crop", VLC_VAR_SETVALUE, &val, NULL);
 213         free(crop);
 214     }
 215 #endif
 216 }
 217 #if 0
 218 static inline void vout_SendEventSnapshot(vout_thread_t *vout, const char *filename)
 219 {
 220     /* signal creation of a new snapshot file */
 221     var_SetString(vout->p_libvlc, "snapshot-file", filename);
 222 }
 223
 224 #warning "FIXME clean up postproc event"
 225
 226 extern void vout_InstallDeprecatedPostProcessing(vout_thread_t *);
 227 extern void vout_UninstallDeprecatedPostProcessing(vout_thread_t *);
 228
 229 static inline void vout_SendEventPostProcessing(vout_thread_t *vout, bool is_available)
 230 {
 231     if (is_available)
 232         vout_InstallDeprecatedPostProcessing(vout);
 233     else
 234         vout_UninstallDeprecatedPostProcessing(vout);
 235 }
 236
 237 static inline void vout_SendEventFilters(vout_thread_t *vout)
 238 {
 239     vout_filter_t **filter;
 240     int           filter_count;
 241
 242     vout_ControlGetFilters(vout, &filter, &filter_count);
 243
 244     char *list = strdup("");
 245     for (int i = 0; i < filter_count; i++) {
 246         char *psz;
 247
 248         if (asprintf(&psz, "%s%s%s",
 249                      list, i > 0 ? ":" : "", filter[i]->name) < 0) {
 250             free(list);
 251             list = NULL;
 252             break;
 253         }
 254         free(list);
 255         list = psz;
 256     }
 257
 258     if (list) {
 259         vlc_value_t val;
 260         val.psz_string = list;
 261         var_Change(vout, "video-filter", VLC_VAR_SETVALUE, &val, NULL);
 262         free(list);
 263     }
 264
 265     for (int i = 0; i < filter_count; i++)
 266         vout_filter_Delete(filter[i]);
 267     free(filter);
 268 }
 269 #endif