1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
|
/*
* Copyright (C) 2000-2002 the xine project
*
* This file is part of xine, a unix video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: tvmode.c,v 1.2 2002/06/16 22:16:55 f1rmb Exp $
*
* tvmode - TV output selection
*
* Currently uses nvtvd (Dirk Thierbach <dthierbach@gmx.de>)
* for setting TV mode
* xine support hacked in by Matthias Hopf <mat@mshopf.de>
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "nvtvd.h"
/* FIXME: how to include that? */
/*#include "xine.h" */
/*
* PRIVATE
*/
/* FIXME: currently the used backend only supports one (1) connection
* to a server and needs this global, external pointer */
BackCardRec *back_card = 0;
BackAccessRec *back_access = 0;
static int current_type, current_width, current_height;
static double current_fps;
static TVCrtRegs old_crt;
static TVRegs old_tv;
/* TODO: config, and better */
static TVSystem opt_system = TV_SYSTEM_PAL;
static TVConnect opt_connect = CONNECT_AUTO;
/* This is the list of possible modes for the used TV system.
* TODO:
* if select_origsize == false:
* The one closest (but larger) to the input stream size is selected.
* if select_origsize == true:
* The first available mode is selected (stick to tv resolution) */
static int scan_mode_pal[][2] = {
{ 768, 576 }, { 800, 576 }, { 720, 576 },
{ 800, 600 },
{ 720, 480 }, { 640, 480 },
{ 800, 450 },
{ 1024, 768 },
{ 0 }
} ;
/* Overscan sizes to be scaned for - note that we do *not* scan for 'Small' */
static char *scan_overscan[] = {
"Interl", "Huge", "Large", "DVD", "Normal", 0
} ;
/* TODO: flexible */
static int opt_flicker = -1;
static double opt_aspect = 4.0 / 3.0;
/* Just turn off warnings */
void xine_tvmode_exit (void);
/* Try to connect to nvtvd server */
static void tvmode_connect () {
CardInfo *card = 0;
if (back_card)
back_card->closeCard ();
if (back_client_avail ()) {
if (! (card = back_client_init ()))
back_card = 0;
} else {
back_card = 0;
}
if (back_card)
back_card->openCard (card);
else
fprintf (stderr, "tvmode: cannot connect to nvtvd - no TV mode switching available\n");
}
/* Disconnect from server */
static void tvmode_disconnect () {
back_card->closeCard ();
back_card = 0;
}
/* Save current CRT and TV register configuration */
static void tvmode_savestate () {
back_card->getMode (&old_crt, &old_tv);
}
/* Restore CRT and TV register configuration */
static void tvmode_restorestate () {
back_card->setMode (0, &old_crt, &old_tv);
current_type = 0;
}
/* Set CRT and TV registers to given TV-Out configuration */
static void tvmode_settvstate (int width, int height, double fps) {
TVSettings settings;
TVMode mode;
TVCrtRegs crt;
TVRegs tv;
int found = 0;
int *scanm;
char **scano;
/* Modify the settings */
back_card->getSettings (&settings);
if (opt_connect > CONNECT_NONE) {
settings.connector = opt_connect;
} else {
settings.connector = CONNECT_BOTH;
}
if (opt_flicker >= 0) {
settings.flicker = opt_flicker;
}
/* TODO: do that at initialization and save possible combinations */
/* Find supported TV mode */
for (scanm = &scan_mode_pal[0][0]; *scanm && ! found; scanm += 2) {
for (scano = scan_overscan; *scano && ! found; scano++) {
fprintf (stderr, "tvmode: trying to use %dx%d %s\n",
scanm[0], scanm[1], *scano);
if (back_card->findBySize (opt_system, scanm[0], scanm[1], *scano,
&mode, &crt, &tv)) {
current_width = scanm[0];
current_height = scanm[1];
current_fps = 25; /* TODO: currently this is PAL only */
found++;
}
}
}
/* Switch to mode */
if (found) {
back_card->setModeSettings (TV_PRIV_TVMODE | TV_PRIV_DUALVIEW,
&crt, &tv, &settings);
current_type = 1;
} else {
fprintf (stderr, "tvmode: cannot find any valid TV mode - TV output disabled\n");
xine_tvmode_exit ();
}
}
/*
* PUBLIC
*/
/* Set to 'regular'(0) or 'tv'(1) state, that is if it is enabled */
int xine_tvmode_switch (int type, int width, int height, double fps) {
if (back_card) {
fprintf (stderr, "tvmode: switching to %s\n", type ? "TV" : "default");
switch (type) {
case 0:
tvmode_restorestate ();
break;
case 1:
tvmode_settvstate (width, height, fps);
break;
default:
fprintf (stderr, "tvmode: illegal type for switching\n");
tvmode_restorestate ();
}
} else {
fprintf (stderr, "tvmode: not connected to nvtvd for switching\n");
}
return current_type;
}
/* Addapt (maximum) output size to visible area and set pixel aspect and fps */
void xine_tvmode_size (int *width, int *height,
double *pixelratio, double *fps) {
switch (current_type) {
case 1:
if (width && *width > current_width)
*width = current_width;
if (height && *height > current_height)
*height = current_height;
if (pixelratio)
*pixelratio = ((double) current_width / current_height) / opt_aspect;
if (fps)
*fps = current_fps;
break;
}
}
/* Connect to nvtvd server if possible and fetch settings */
void xine_tvmode_init () {
tvmode_connect ();
if (back_card)
tvmode_savestate ();
}
/* Restore old CRT and TV registers and close nvtvd connection */
void xine_tvmode_exit () {
if (back_card) {
tvmode_restorestate ();
tvmode_disconnect ();
}
}
|
