1 /*****************************************************************************
2 * osd_widgets.c : OSD widgets manipulation functions
3 *****************************************************************************
4 * Copyright (C) 2004-2007 the VideoLAN team
7 * Author: Yoann Peronneau <yoann@videolan.org>
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.
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.
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 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
30 #include <vlc_filter.h>
33 #define STYLE_FILLED 1
35 /*****************************************************************************
37 *****************************************************************************/
38 static void DrawRect( subpicture_t *, int, int, int, int, short );
39 static void DrawTriangle( subpicture_t *, int, int, int, int, short );
40 static int CreatePicture( spu_t *, subpicture_t *, int, int, int, int );
41 static subpicture_t *osd_CreateWidget( spu_t *, int );
43 /*****************************************************************************
44 * Draws a rectangle at the given position in the subpic.
45 * It may be filled (fill == STYLE_FILLED) or empty (fill == STYLE_EMPTY).
46 *****************************************************************************/
47 static void DrawRect( subpicture_t *p_subpic, int i_x1, int i_y1,
48 int i_x2, int i_y2, short fill )
51 uint8_t *p_a = p_subpic->p_region->picture.A_PIXELS;
52 int i_pitch = p_subpic->p_region->picture.Y_PITCH;
54 if( fill == STYLE_FILLED )
56 for( y = i_y1; y <= i_y2; y++ )
58 for( x = i_x1; x <= i_x2; x++ )
60 p_a[ x + i_pitch * y ] = 0xff;
66 for( y = i_y1; y <= i_y2; y++ )
68 p_a[ i_x1 + i_pitch * y ] = 0xff;
69 p_a[ i_x2 + i_pitch * y ] = 0xff;
71 for( x = i_x1; x <= i_x2; x++ )
73 p_a[ x + i_pitch * i_y1 ] = 0xff;
74 p_a[ x + i_pitch * i_y2 ] = 0xff;
79 /*****************************************************************************
80 * Draws a triangle at the given position in the subpic.
81 * It may be filled (fill == STYLE_FILLED) or empty (fill == STYLE_EMPTY).
82 *****************************************************************************/
83 static void DrawTriangle( subpicture_t *p_subpic, int i_x1, int i_y1,
84 int i_x2, int i_y2, short fill )
87 uint8_t *p_a = p_subpic->p_region->picture.A_PIXELS;
88 int i_pitch = p_subpic->p_region->picture.Y_PITCH;
90 i_mid = i_y1 + ( ( i_y2 - i_y1 ) >> 1 );
94 if( fill == STYLE_FILLED )
96 for( y = i_y1; y <= i_mid; y++ )
99 for( x = i_x1; x <= i_x1 + h && x <= i_x2; x++ )
101 p_a[ x + i_pitch * y ] = 0xff;
102 p_a[ x + i_pitch * ( i_y2 - h ) ] = 0xff;
108 for( y = i_y1; y <= i_mid; y++ )
111 p_a[ i_x1 + i_pitch * y ] = 0xff;
112 p_a[ i_x1 + h + i_pitch * y ] = 0xff;
113 p_a[ i_x1 + i_pitch * ( i_y2 - h ) ] = 0xff;
114 p_a[ i_x1 + h + i_pitch * ( i_y2 - h ) ] = 0xff;
120 if( fill == STYLE_FILLED )
122 for( y = i_y1; y <= i_mid; y++ )
125 for( x = i_x1; x >= i_x1 - h && x >= i_x2; x-- )
127 p_a[ x + i_pitch * y ] = 0xff;
128 p_a[ x + i_pitch * ( i_y2 - h ) ] = 0xff;
134 for( y = i_y1; y <= i_mid; y++ )
137 p_a[ i_x1 + i_pitch * y ] = 0xff;
138 p_a[ i_x1 - h + i_pitch * y ] = 0xff;
139 p_a[ i_x1 + i_pitch * ( i_y2 - h ) ] = 0xff;
140 p_a[ i_x1 - h + i_pitch * ( i_y2 - h ) ] = 0xff;
146 /*****************************************************************************
147 * Create Picture: creates subpicture region and picture
148 *****************************************************************************/
149 static int CreatePicture( spu_t *p_spu, subpicture_t *p_subpic,
150 int i_x, int i_y, int i_width, int i_height )
152 uint8_t *p_y, *p_u, *p_v, *p_a;
156 /* Create a new subpicture region */
157 memset( &fmt, 0, sizeof(video_format_t) );
158 fmt.i_chroma = VLC_FOURCC('Y','U','V','A');
160 fmt.i_width = fmt.i_visible_width = i_width;
161 fmt.i_height = fmt.i_visible_height = i_height;
162 fmt.i_x_offset = fmt.i_y_offset = 0;
163 p_subpic->p_region = p_subpic->pf_create_region( VLC_OBJECT(p_spu), &fmt );
164 if( !p_subpic->p_region )
166 msg_Err( p_spu, "cannot allocate SPU region" );
170 p_subpic->p_region->i_x = i_x;
171 p_subpic->p_region->i_y = i_y;
172 p_y = p_subpic->p_region->picture.Y_PIXELS;
173 p_u = p_subpic->p_region->picture.U_PIXELS;
174 p_v = p_subpic->p_region->picture.V_PIXELS;
175 p_a = p_subpic->p_region->picture.A_PIXELS;
176 i_pitch = p_subpic->p_region->picture.Y_PITCH;
178 /* Initialize the region pixels (only the alpha will be changed later) */
179 memset( p_y, 0xff, i_pitch * p_subpic->p_region->fmt.i_height );
180 memset( p_u, 0x80, i_pitch * p_subpic->p_region->fmt.i_height );
181 memset( p_v, 0x80, i_pitch * p_subpic->p_region->fmt.i_height );
182 memset( p_a, 0x00, i_pitch * p_subpic->p_region->fmt.i_height );
187 /*****************************************************************************
188 * Creates and initializes an OSD widget.
189 *****************************************************************************/
190 subpicture_t *osd_CreateWidget( spu_t *p_spu, int i_channel )
192 subpicture_t *p_subpic;
193 mtime_t i_now = mdate();
195 /* Create and initialize a subpicture */
196 p_subpic = spu_CreateSubpicture( p_spu );
197 if( p_subpic == NULL ) return NULL;
199 p_subpic->i_channel = i_channel;
200 p_subpic->i_start = i_now;
201 p_subpic->i_stop = i_now + 1200000;
202 p_subpic->b_ephemer = VLC_TRUE;
203 p_subpic->b_fade = VLC_TRUE;
208 /*****************************************************************************
209 * Displays an OSD slider.
210 * Types are: OSD_HOR_SLIDER and OSD_VERT_SLIDER.
211 *****************************************************************************/
212 int osd_Slider( vlc_object_t *p_this, spu_t *p_spu,
213 int i_render_width, int i_render_height,
214 int i_margin_left, int i_margin_bottom,
215 int i_channel, int i_position, short i_type )
217 subpicture_t *p_subpic;
218 int i_x_margin, i_y_margin, i_x, i_y, i_width, i_height;
221 p_subpic = osd_CreateWidget( p_spu, i_channel );
222 if( p_subpic == NULL )
227 i_y_margin = i_render_height / 10;
228 i_x_margin = i_y_margin + i_margin_left;
229 i_y_margin += i_margin_bottom;
231 if( i_type == OSD_HOR_SLIDER )
233 i_width = i_render_width - 2 * i_x_margin;
234 i_height = i_render_height / 20;
236 i_y = i_render_height - i_y_margin - i_height;
240 i_width = i_render_width / 40;
241 i_height = i_render_height - 2 * i_y_margin;
242 i_x = i_render_width - i_x_margin - i_width;
246 /* Create subpicture region and picture */
247 CreatePicture( p_spu, p_subpic, i_x, i_y, i_width, i_height );
249 if( i_type == OSD_HOR_SLIDER )
251 int i_x_pos = ( i_width - 2 ) * i_position / 100;
252 DrawRect( p_subpic, i_x_pos - 1, 2, i_x_pos + 1,
253 i_height - 3, STYLE_FILLED );
254 DrawRect( p_subpic, 0, 0, i_width - 1, i_height - 1, STYLE_EMPTY );
256 else if( i_type == OSD_VERT_SLIDER )
258 int i_y_pos = i_height / 2;
259 DrawRect( p_subpic, 2, i_height - ( i_height - 2 ) * i_position / 100,
260 i_width - 3, i_height - 3, STYLE_FILLED );
261 DrawRect( p_subpic, 1, i_y_pos, 1, i_y_pos, STYLE_FILLED );
262 DrawRect( p_subpic, i_width - 2, i_y_pos,
263 i_width - 2, i_y_pos, STYLE_FILLED );
264 DrawRect( p_subpic, 0, 0, i_width - 1, i_height - 1, STYLE_EMPTY );
267 spu_DisplaySubpicture( p_spu, p_subpic );
272 /*****************************************************************************
273 * Displays an OSD icon.
274 * Types are: OSD_PLAY_ICON, OSD_PAUSE_ICON, OSD_SPEAKER_ICON, OSD_MUTE_ICON
275 *****************************************************************************/
276 int osd_Icon( vlc_object_t *p_this, spu_t *p_spu,
277 int i_render_width, int i_render_height, int i_margin_right,
278 int i_margin_top, int i_channel, short i_type )
280 subpicture_t *p_subpic;
281 int i_x_margin, i_y_margin, i_x, i_y, i_width, i_height;
284 p_subpic = osd_CreateWidget( p_spu, i_channel );
285 if( p_subpic == NULL )
290 i_y_margin = i_render_height / 15;
291 i_x_margin = i_y_margin + i_margin_right;
292 i_y_margin += i_margin_top;
293 i_width = i_render_width / 20;
295 i_x = i_render_width - i_x_margin - i_width;
298 /* Create subpicture region and picture */
299 CreatePicture( p_spu, p_subpic, i_x, i_y, i_width, i_height );
301 if( i_type == OSD_PAUSE_ICON )
303 int i_bar_width = i_width / 3;
304 DrawRect( p_subpic, 0, 0, i_bar_width - 1, i_height -1, STYLE_FILLED );
305 DrawRect( p_subpic, i_width - i_bar_width, 0,
306 i_width - 1, i_height - 1, STYLE_FILLED );
308 else if( i_type == OSD_PLAY_ICON )
310 int i_mid = i_height >> 1;
311 int i_delta = ( i_width - i_mid ) >> 1;
312 int i_y2 = ( ( i_height - 1 ) >> 1 ) * 2;
313 DrawTriangle( p_subpic, i_delta, 0, i_width - i_delta, i_y2,
316 else if( i_type == OSD_SPEAKER_ICON || i_type == OSD_MUTE_ICON )
318 int i_mid = i_height >> 1;
319 int i_delta = ( i_width - i_mid ) >> 1;
320 int i_y2 = ( ( i_height - 1 ) >> 1 ) * 2;
321 DrawRect( p_subpic, i_delta, i_mid / 2, i_width - i_delta,
322 i_height - 1 - i_mid / 2, STYLE_FILLED );
323 DrawTriangle( p_subpic, i_width - i_delta, 0, i_delta, i_y2,
325 if( i_type == OSD_MUTE_ICON )
327 uint8_t *p_a = p_subpic->p_region->picture.A_PIXELS;
328 int i_pitch = p_subpic->p_region->picture.Y_PITCH;
330 for( i = 1; i < i_pitch; i++ )
332 int k = i + ( i_height - i - 1 ) * i_pitch;
333 p_a[ k ] = 0xff - p_a[ k ];
338 spu_DisplaySubpicture( p_spu, p_subpic );