1 /*****************************************************************************
2 * interface.c: interface access for other threads
3 * This library provides basic functions for threads to interact with user
4 * interface, such as command line.
5 *****************************************************************************
6 * Copyright (C) 1998, 1999, 2000 VideoLAN
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
30 #include <errno.h> /* ENOMEM */
31 #include <stdlib.h> /* free(), strtol() */
32 #include <stdio.h> /* FILE */
33 #include <string.h> /* strerror() */
41 #include "stream_control.h"
42 #include "input_ext-intf.h"
44 #include "audio_output.h"
47 #include "interface.h"
49 #include "intf_plst.h"
50 #include "intf_channels.h"
51 #include "keystrokes.h"
54 #include "video_output.h"
58 /*****************************************************************************
60 *****************************************************************************/
61 static void intf_Manage( intf_thread_t *p_intf );
63 /*****************************************************************************
64 * intf_Create: prepare interface before main loop
65 *****************************************************************************
66 * This function opens output devices and creates specific interfaces. It sends
67 * its own error messages.
68 *****************************************************************************/
69 intf_thread_t* intf_Create( void )
71 intf_thread_t * p_intf;
73 /* Allocate structure */
74 p_intf = malloc( sizeof( intf_thread_t ) );
77 intf_ErrMsg( "intf error: cannot create interface thread (%s)",
82 /* Choose the best module */
83 p_intf->p_module = module_Need( p_main->p_bank,
84 MODULE_CAPABILITY_INTF, NULL );
86 if( p_intf->p_module == NULL )
88 intf_ErrMsg( "intf error: no suitable intf module" );
93 #define f p_intf->p_module->p_functions->intf.functions.intf
94 p_intf->pf_open = f.pf_open;
95 p_intf->pf_close = f.pf_close;
96 p_intf->pf_run = f.pf_run;
99 /* Initialize callbacks */
100 p_intf->pf_manage = intf_Manage;
102 /* Initialize structure */
105 p_intf->p_input = NULL;
106 p_intf->p_keys = NULL;
108 p_intf->b_menu_change = 0;
110 if( p_intf->pf_open( p_intf ) )
112 intf_ErrMsg("intf error: cannot create interface");
113 module_Unneed( p_main->p_bank, p_intf->p_module );
118 /* Initialize mutexes */
119 vlc_mutex_init( &p_intf->change_lock );
121 /* Load channels - the pointer will be set to NULL on failure. The
122 * return value is ignored since the program can work without
124 intf_LoadChannels( p_intf, main_GetPszVariable( INTF_CHANNELS_VAR,
125 INTF_CHANNELS_DEFAULT ));
127 intf_Msg("intf: interface initialized");
131 /*****************************************************************************
132 * intf_Manage: manage interface
133 *****************************************************************************
134 * This function has to be called regularly by the interface plugin. It
135 * checks for playlist end, module expiration, message flushing, and a few
136 * other useful things.
137 *****************************************************************************/
138 static void intf_Manage( intf_thread_t *p_intf )
140 /* Flush waiting messages */
143 /* Manage module bank */
144 module_ManageBank( p_main->p_bank );
146 if( ( p_intf->p_input != NULL ) &&
147 ( p_intf->p_input->b_error || p_intf->p_input->b_eof ) )
149 input_DestroyThread( p_intf->p_input, NULL );
150 p_intf->p_input = NULL;
151 intf_DbgMsg("Input thread destroyed");
154 /* If no stream is being played, try to find one */
155 if( p_intf->p_input == NULL && !p_intf->b_die )
157 /* Select the next playlist item */
158 intf_PlstNext( p_main->p_playlist );
160 if( p_main->p_playlist->i_index == -1 )
162 /* FIXME: wait for user to add stuff to playlist ? */
168 input_CreateThread( &p_main->p_playlist->current, NULL );
173 /*****************************************************************************
174 * intf_Destroy: clean interface after main loop
175 *****************************************************************************
176 * This function destroys specific interfaces and close output devices.
177 *****************************************************************************/
178 void intf_Destroy( intf_thread_t *p_intf )
183 /* Unload channels */
184 intf_UnloadChannels( p_intf );
186 /* Destroy interfaces */
187 p_intf->pf_close( p_intf );
189 /* Close input thread, if any (blocking) */
190 if( p_intf->p_input )
192 input_DestroyThread( p_intf->p_input, NULL );
196 p_cur = p_intf->p_keys;
197 while( p_cur != NULL)
199 p_next = p_cur->next;
205 module_Unneed( p_main->p_bank, p_intf->p_module );
207 vlc_mutex_destroy( &p_intf->change_lock );
213 /*****************************************************************************
214 * intf_AssignKey: assign standartkeys *
215 *****************************************************************************
216 * This function fills in the associative array that links the key pressed *
217 * and the key we use internally. Support one extra parameter. *
218 ****************************************************************************/
219 void intf_AssignKey( intf_thread_t *p_intf, int r_key, int f_key, int param)
221 p_intf_key p_cur = p_intf->p_keys;
224 p_cur = (p_intf_key )(malloc ( sizeof( intf_key ) ) );
225 p_cur->received_key = r_key;
226 p_cur->forwarded.key = f_key;
227 p_cur->forwarded.param = param;
229 p_intf->p_keys = p_cur;
233 while( p_cur->next != NULL && p_cur ->received_key != r_key)
237 if( p_cur->next == NULL )
239 p_cur->next = ( p_intf_key )( malloc( sizeof( intf_key ) ) );
242 p_cur->forwarded.param = param;
243 p_cur->received_key = r_key;
245 p_cur->forwarded.key = f_key;
249 /* Basic getKey function... */
250 keyparm intf_GetKey( intf_thread_t *p_intf, int r_key)
254 p_intf_key current = p_intf->p_keys;
255 while(current != NULL && current->received_key != r_key)
257 current = current->next;
260 { /* didn't find any key in the array */
261 reply.key = INTF_KEY_UNKNOWN;
266 reply.key = current->forwarded.key;
267 reply.param = current->forwarded.param;
272 /*****************************************************************************
273 * intf_AssignNormalKeys: used for normal interfaces.
274 *****************************************************************************
275 * This function assign the basic key to the normal keys.
276 *****************************************************************************/
278 void intf_AssignNormalKeys( intf_thread_t *p_intf)
280 p_intf->p_intf_get_key = intf_GetKey;
282 intf_AssignKey( p_intf , 'Q', INTF_KEY_QUIT, 0);
283 intf_AssignKey( p_intf , 'q', INTF_KEY_QUIT, 0);
284 intf_AssignKey( p_intf , 27, INTF_KEY_QUIT, 0);
285 intf_AssignKey( p_intf , 3, INTF_KEY_QUIT, 0);
286 intf_AssignKey( p_intf , '0', INTF_KEY_SET_CHANNEL, 0);
287 intf_AssignKey( p_intf , '1', INTF_KEY_SET_CHANNEL, 1);
288 intf_AssignKey( p_intf , '2', INTF_KEY_SET_CHANNEL, 2);
289 intf_AssignKey( p_intf , '3', INTF_KEY_SET_CHANNEL, 3);
290 intf_AssignKey( p_intf , '4', INTF_KEY_SET_CHANNEL, 4);
291 intf_AssignKey( p_intf , '5', INTF_KEY_SET_CHANNEL, 5);
292 intf_AssignKey( p_intf , '6', INTF_KEY_SET_CHANNEL, 6);
293 intf_AssignKey( p_intf , '7', INTF_KEY_SET_CHANNEL, 7);
294 intf_AssignKey( p_intf , '8', INTF_KEY_SET_CHANNEL, 8);
295 intf_AssignKey( p_intf , '9', INTF_KEY_SET_CHANNEL, 9);
296 intf_AssignKey( p_intf , '0', INTF_KEY_SET_CHANNEL, 0);
297 intf_AssignKey( p_intf , '+', INTF_KEY_INC_VOLUME, 0);
298 intf_AssignKey( p_intf , '-', INTF_KEY_DEC_VOLUME, 0);
299 intf_AssignKey( p_intf , 'm', INTF_KEY_TOGGLE_VOLUME, 0);
300 intf_AssignKey( p_intf , 'M', INTF_KEY_TOGGLE_VOLUME, 0);
301 intf_AssignKey( p_intf , 'g', INTF_KEY_DEC_GAMMA, 0);
302 intf_AssignKey( p_intf , 'G', INTF_KEY_INC_GAMMA, 0);
303 intf_AssignKey( p_intf , 'c', INTF_KEY_TOGGLE_GRAYSCALE, 0);
304 intf_AssignKey( p_intf , ' ', INTF_KEY_TOGGLE_INTERFACE, 0);
305 intf_AssignKey( p_intf , 'i', INTF_KEY_TOGGLE_INFO, 0);
306 intf_AssignKey( p_intf , 's', INTF_KEY_TOGGLE_SCALING, 0);
309 /*****************************************************************************
310 * intf_ProcessKey: process standard keys
311 *****************************************************************************
312 * This function will process standard keys and return non 0 if the key was
314 *****************************************************************************/
315 int intf_ProcessKey( intf_thread_t *p_intf, int g_key )
317 static int i_volbackup;
320 k_reply = intf_GetKey( p_intf, g_key);
322 switch( k_reply.key )
324 case INTF_KEY_QUIT: /* quit order */
327 case INTF_KEY_SET_CHANNEL:
328 /* Change channel - return code is ignored since SelectChannel displays
329 * its own error messages */
330 intf_SelectChannel( p_intf, k_reply.param );
332 case INTF_KEY_INC_VOLUME: /* volume + */
333 if( (p_main->p_aout != NULL) && (p_main->p_aout->vol < VOLUME_MAX) )
334 p_main->p_aout->vol += VOLUME_STEP;
336 case INTF_KEY_DEC_VOLUME: /* volume - */
337 if( (p_main->p_aout != NULL) && (p_main->p_aout->vol > VOLUME_STEP) )
338 p_main->p_aout->vol -= VOLUME_STEP;
340 case INTF_KEY_TOGGLE_VOLUME: /* toggle mute */
341 if( (p_main->p_aout != NULL) && (p_main->p_aout->vol))
343 i_volbackup = p_main->p_aout->vol;
344 p_main->p_aout->vol = 0;
346 else if( (p_main->p_aout != NULL) && (!p_main->p_aout->vol))
347 p_main->p_aout->vol = i_volbackup;
349 case INTF_KEY_DEC_GAMMA: /* gamma - */
350 if( (p_main->p_vout != NULL) && (p_main->p_vout->f_gamma > -INTF_GAMMA_LIMIT) )
352 vlc_mutex_lock( &p_main->p_vout->change_lock );
353 p_main->p_vout->f_gamma -= INTF_GAMMA_STEP;
354 p_main->p_vout->i_changes |= VOUT_GAMMA_CHANGE;
355 vlc_mutex_unlock( &p_main->p_vout->change_lock );
358 case INTF_KEY_INC_GAMMA: /* gamma + */
359 if( (p_main->p_vout != NULL) && (p_main->p_vout->f_gamma < INTF_GAMMA_LIMIT) )
361 vlc_mutex_lock( &p_main->p_vout->change_lock );
362 p_main->p_vout->f_gamma += INTF_GAMMA_STEP;
363 p_main->p_vout->i_changes |= VOUT_GAMMA_CHANGE;
364 vlc_mutex_unlock( &p_main->p_vout->change_lock );
367 default: /* unknown key */