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 *****************************************************************************/
27 #include <stdlib.h> /* free() */
31 #include <vlc_filter.h>
34 #define STYLE_FILLED 1
36 /*****************************************************************************
38 *****************************************************************************/
39 static void DrawRect( subpicture_t *, int, int, int, int, short );
40 static void DrawTriangle( subpicture_t *, int, int, int, int, short );
41 static int CreatePicture( spu_t *, subpicture_t *, int, int, int, int );
42 static subpicture_t *osd_CreateWidget( spu_t *, int );
44 /*****************************************************************************
45 * Draws a rectangle at the given position in the subpic.
46 * It may be filled (fill == STYLE_FILLED) or empty (fill == STYLE_EMPTY).
47 *****************************************************************************/
48 static void DrawRect( subpicture_t *p_subpic, int i_x1, int i_y1,
49 int i_x2, int i_y2, short fill )
52 uint8_t *p_a = p_subpic->p_region->picture.A_PIXELS;
53 int i_pitch = p_subpic->p_region->picture.Y_PITCH;
55 if( fill == STYLE_FILLED )
57 for( y = i_y1; y <= i_y2; y++ )
59 for( x = i_x1; x <= i_x2; x++ )
61 p_a[ x + i_pitch * y ] = 0xff;
67 for( y = i_y1; y <= i_y2; y++ )
69 p_a[ i_x1 + i_pitch * y ] = 0xff;
70 p_a[ i_x2 + i_pitch * y ] = 0xff;
72 for( x = i_x1; x <= i_x2; x++ )
74 p_a[ x + i_pitch * i_y1 ] = 0xff;
75 p_a[ x + i_pitch * i_y2 ] = 0xff;
80 /*****************************************************************************
81 * Draws a triangle at the given position in the subpic.
82 * It may be filled (fill == STYLE_FILLED) or empty (fill == STYLE_EMPTY).
83 *****************************************************************************/
84 static void DrawTriangle( subpicture_t *p_subpic, int i_x1, int i_y1,
85 int i_x2, int i_y2, short fill )
88 uint8_t *p_a = p_subpic->p_region->picture.A_PIXELS;
89 int i_pitch = p_subpic->p_region->picture.Y_PITCH;
91 i_mid = i_y1 + ( ( i_y2 - i_y1 ) >> 1 );
95 if( fill == STYLE_FILLED )
97 for( y = i_y1; y <= i_mid; y++ )
100 for( x = i_x1; x <= i_x1 + h && x <= i_x2; x++ )
102 p_a[ x + i_pitch * y ] = 0xff;
103 p_a[ x + i_pitch * ( i_y2 - h ) ] = 0xff;
109 for( y = i_y1; y <= i_mid; y++ )
112 p_a[ i_x1 + i_pitch * y ] = 0xff;
113 p_a[ i_x1 + h + i_pitch * y ] = 0xff;
114 p_a[ i_x1 + i_pitch * ( i_y2 - h ) ] = 0xff;
115 p_a[ i_x1 + h + i_pitch * ( i_y2 - h ) ] = 0xff;
121 if( fill == STYLE_FILLED )
123 for( y = i_y1; y <= i_mid; y++ )
126 for( x = i_x1; x >= i_x1 - h && x >= i_x2; x-- )
128 p_a[ x + i_pitch * y ] = 0xff;
129 p_a[ x + i_pitch * ( i_y2 - h ) ] = 0xff;
135 for( y = i_y1; y <= i_mid; y++ )
138 p_a[ i_x1 + i_pitch * y ] = 0xff;
139 p_a[ i_x1 - h + i_pitch * y ] = 0xff;
140 p_a[ i_x1 + i_pitch * ( i_y2 - h ) ] = 0xff;
141 p_a[ i_x1 - h + i_pitch * ( i_y2 - h ) ] = 0xff;
147 /*****************************************************************************
148 * Create Picture: creates subpicture region and picture
149 *****************************************************************************/
150 static int CreatePicture( spu_t *p_spu, subpicture_t *p_subpic,
151 int i_x, int i_y, int i_width, int i_height )
153 uint8_t *p_y, *p_u, *p_v, *p_a;
157 /* Create a new subpicture region */
158 memset( &fmt, 0, sizeof(video_format_t) );
159 fmt.i_chroma = VLC_FOURCC('Y','U','V','A');
161 fmt.i_width = fmt.i_visible_width = i_width;
162 fmt.i_height = fmt.i_visible_height = i_height;
163 fmt.i_x_offset = fmt.i_y_offset = 0;
164 p_subpic->p_region = p_subpic->pf_create_region( VLC_OBJECT(p_spu), &fmt );
165 if( !p_subpic->p_region )
167 msg_Err( p_spu, "cannot allocate SPU region" );
171 p_subpic->p_region->i_x = i_x;
172 p_subpic->p_region->i_y = i_y;
173 p_y = p_subpic->p_region->picture.Y_PIXELS;
174 p_u = p_subpic->p_region->picture.U_PIXELS;
175 p_v = p_subpic->p_region->picture.V_PIXELS;
176 p_a = p_subpic->p_region->picture.A_PIXELS;
177 i_pitch = p_subpic->p_region->picture.Y_PITCH;
179 /* Initialize the region pixels (only the alpha will be changed later) */
180 memset( p_y, 0xff, i_pitch * p_subpic->p_region->fmt.i_height );
181 memset( p_u, 0x80, i_pitch * p_subpic->p_region->fmt.i_height );
182 memset( p_v, 0x80, i_pitch * p_subpic->p_region->fmt.i_height );
183 memset( p_a, 0x00, i_pitch * p_subpic->p_region->fmt.i_height );
188 /*****************************************************************************
189 * Creates and initializes an OSD widget.
190 *****************************************************************************/
191 subpicture_t *osd_CreateWidget( spu_t *p_spu, int i_channel )
193 subpicture_t *p_subpic;
194 mtime_t i_now = mdate();
196 /* Create and initialize a subpicture */
197 p_subpic = spu_CreateSubpicture( p_spu );
198 if( p_subpic == NULL ) return NULL;
200 p_subpic->i_channel = i_channel;
201 p_subpic->i_start = i_now;
202 p_subpic->i_stop = i_now + 1200000;
203 p_subpic->b_ephemer = VLC_TRUE;
204 p_subpic->b_fade = VLC_TRUE;
209 /*****************************************************************************
210 * Displays an OSD slider.
211 * Types are: OSD_HOR_SLIDER and OSD_VERT_SLIDER.
212 *****************************************************************************/
213 int osd_Slider( vlc_object_t *p_this, spu_t *p_spu,
214 int i_render_width, int i_render_height,
215 int i_margin_left, int i_margin_bottom,
216 int i_channel, int i_position, short i_type )
218 subpicture_t *p_subpic;
219 int i_x_margin, i_y_margin, i_x, i_y, i_width, i_height;
222 p_subpic = osd_CreateWidget( p_spu, i_channel );
223 if( p_subpic == NULL )
228 i_y_margin = i_render_height / 10;
229 i_x_margin = i_y_margin + i_margin_left;
230 i_y_margin += i_margin_bottom;
232 if( i_type == OSD_HOR_SLIDER )
234 i_width = i_render_width - 2 * i_x_margin;
235 i_height = i_render_height / 20;
237 i_y = i_render_height - i_y_margin - i_height;
241 i_width = i_render_width / 40;
242 i_height = i_render_height - 2 * i_y_margin;
243 i_x = i_render_width - i_x_margin - i_width;
247 /* Create subpicture region and picture */
248 CreatePicture( p_spu, p_subpic, i_x, i_y, i_width, i_height );
250 if( i_type == OSD_HOR_SLIDER )
252 int i_x_pos = ( i_width - 2 ) * i_position / 100;
253 DrawRect( p_subpic, i_x_pos - 1, 2, i_x_pos + 1,
254 i_height - 3, STYLE_FILLED );
255 DrawRect( p_subpic, 0, 0, i_width - 1, i_height - 1, STYLE_EMPTY );
257 else if( i_type == OSD_VERT_SLIDER )
259 int i_y_pos = i_height / 2;
260 DrawRect( p_subpic, 2, i_height - ( i_height - 2 ) * i_position / 100,
261 i_width - 3, i_height - 3, STYLE_FILLED );
262 DrawRect( p_subpic, 1, i_y_pos, 1, i_y_pos, STYLE_FILLED );
263 DrawRect( p_subpic, i_width - 2, i_y_pos,
264 i_width - 2, i_y_pos, STYLE_FILLED );
265 DrawRect( p_subpic, 0, 0, i_width - 1, i_height - 1, STYLE_EMPTY );
268 spu_DisplaySubpicture( p_spu, p_subpic );
273 /*****************************************************************************
274 * Displays an OSD icon.
275 * Types are: OSD_PLAY_ICON, OSD_PAUSE_ICON, OSD_SPEAKER_ICON, OSD_MUTE_ICON
276 *****************************************************************************/
277 int osd_Icon( vlc_object_t *p_this, spu_t *p_spu,
278 int i_render_width, int i_render_height, int i_margin_right,
279 int i_margin_top, int i_channel, short i_type )
281 subpicture_t *p_subpic;
282 int i_x_margin, i_y_margin, i_x, i_y, i_width, i_height;
285 p_subpic = osd_CreateWidget( p_spu, i_channel );
286 if( p_subpic == NULL )
291 i_y_margin = i_render_height / 15;
292 i_x_margin = i_y_margin + i_margin_right;
293 i_y_margin += i_margin_top;
294 i_width = i_render_width / 20;
296 i_x = i_render_width - i_x_margin - i_width;
299 /* Create subpicture region and picture */
300 CreatePicture( p_spu, p_subpic, i_x, i_y, i_width, i_height );
302 if( i_type == OSD_PAUSE_ICON )
304 int i_bar_width = i_width / 3;
305 DrawRect( p_subpic, 0, 0, i_bar_width - 1, i_height -1, STYLE_FILLED );
306 DrawRect( p_subpic, i_width - i_bar_width, 0,
307 i_width - 1, i_height - 1, STYLE_FILLED );
309 else if( i_type == OSD_PLAY_ICON )
311 int i_mid = i_height >> 1;
312 int i_delta = ( i_width - i_mid ) >> 1;
313 int i_y2 = ( ( i_height - 1 ) >> 1 ) * 2;
314 DrawTriangle( p_subpic, i_delta, 0, i_width - i_delta, i_y2,
317 else if( i_type == OSD_SPEAKER_ICON || i_type == OSD_MUTE_ICON )
319 int i_mid = i_height >> 1;
320 int i_delta = ( i_width - i_mid ) >> 1;
321 int i_y2 = ( ( i_height - 1 ) >> 1 ) * 2;
322 DrawRect( p_subpic, i_delta, i_mid / 2, i_width - i_delta,
323 i_height - 1 - i_mid / 2, STYLE_FILLED );
324 DrawTriangle( p_subpic, i_width - i_delta, 0, i_delta, i_y2,
326 if( i_type == OSD_MUTE_ICON )
328 uint8_t *p_a = p_subpic->p_region->picture.A_PIXELS;
329 int i_pitch = p_subpic->p_region->picture.Y_PITCH;
331 for( i = 1; i < i_pitch; i++ )
333 int k = i + ( i_height - i - 1 ) * i_pitch;
334 p_a[ k ] = 0xff - p_a[ k ];
339 spu_DisplaySubpicture( p_spu, p_subpic );