1 /*****************************************************************************
2 * invert.c : Invert video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000, 2001, 2002, 2003 the VideoLAN team
7 * Authors: Samuel Hocevar <sam@zoy.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., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
27 #include <stdlib.h> /* malloc(), free() */
33 #include "filter_common.h"
35 /*****************************************************************************
37 *****************************************************************************/
38 static int Create ( vlc_object_t * );
39 static void Destroy ( vlc_object_t * );
41 static int Init ( vout_thread_t * );
42 static void End ( vout_thread_t * );
43 static void Render ( vout_thread_t *, picture_t * );
45 static int SendEvents( vlc_object_t *, char const *,
46 vlc_value_t, vlc_value_t, void * );
48 /*****************************************************************************
50 *****************************************************************************/
52 set_description( _("Invert video filter") );
53 set_shortname( N_("Color inversion" ));
54 set_category( CAT_VIDEO );
55 set_subcategory( SUBCAT_VIDEO_VFILTER );
56 set_capability( "video filter", 0 );
57 add_shortcut( "invert" );
58 set_callbacks( Create, Destroy );
61 /*****************************************************************************
62 * vout_sys_t: Invert video output method descriptor
63 *****************************************************************************
64 * This structure is part of the video output thread descriptor.
65 * It describes the Invert specific properties of an output thread.
66 *****************************************************************************/
69 vout_thread_t *p_vout;
72 /*****************************************************************************
73 * Control: control facility for the vout (forwards to child vout)
74 *****************************************************************************/
75 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
77 return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
80 /*****************************************************************************
81 * Create: allocates Invert video thread output method
82 *****************************************************************************
83 * This function allocates and initializes a Invert vout method.
84 *****************************************************************************/
85 static int Create( vlc_object_t *p_this )
87 vout_thread_t *p_vout = (vout_thread_t *)p_this;
89 /* Allocate structure */
90 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
91 if( p_vout->p_sys == NULL )
93 msg_Err( p_vout, "out of memory" );
97 p_vout->pf_init = Init;
99 p_vout->pf_manage = NULL;
100 p_vout->pf_render = Render;
101 p_vout->pf_display = NULL;
102 p_vout->pf_control = Control;
107 /*****************************************************************************
108 * Init: initialize Invert video thread output method
109 *****************************************************************************/
110 static int Init( vout_thread_t *p_vout )
114 video_format_t fmt = {0};
116 I_OUTPUTPICTURES = 0;
118 /* Initialize the output structure */
119 p_vout->output.i_chroma = p_vout->render.i_chroma;
120 p_vout->output.i_width = p_vout->render.i_width;
121 p_vout->output.i_height = p_vout->render.i_height;
122 p_vout->output.i_aspect = p_vout->render.i_aspect;
124 fmt.i_width = fmt.i_visible_width = p_vout->render.i_width;
125 fmt.i_height = fmt.i_visible_height = p_vout->render.i_height;
126 fmt.i_x_offset = fmt.i_y_offset = 0;
127 fmt.i_chroma = p_vout->render.i_chroma;
128 fmt.i_aspect = p_vout->render.i_aspect;
129 fmt.i_sar_num = p_vout->render.i_aspect * fmt.i_height / fmt.i_width;
130 fmt.i_sar_den = VOUT_ASPECT_FACTOR;
132 /* Try to open the real video output */
133 msg_Dbg( p_vout, "spawning the real video output" );
135 p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
137 /* Everything failed */
138 if( p_vout->p_sys->p_vout == NULL )
140 msg_Err( p_vout, "can't open vout, aborting" );
145 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
147 ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
149 ADD_PARENT_CALLBACKS( SendEventsToChild );
154 /*****************************************************************************
155 * End: terminate Invert video thread output method
156 *****************************************************************************/
157 static void End( vout_thread_t *p_vout )
161 /* Free the fake output buffers we allocated */
162 for( i_index = I_OUTPUTPICTURES ; i_index ; )
165 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
169 /*****************************************************************************
170 * Destroy: destroy Invert video thread output method
171 *****************************************************************************
172 * Terminate an output method created by InvertCreateOutputMethod
173 *****************************************************************************/
174 static void Destroy( vlc_object_t *p_this )
176 vout_thread_t *p_vout = (vout_thread_t *)p_this;
178 if( p_vout->p_sys->p_vout )
180 DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
181 vlc_object_detach( p_vout->p_sys->p_vout );
182 vout_Destroy( p_vout->p_sys->p_vout );
185 DEL_PARENT_CALLBACKS( SendEventsToChild );
187 free( p_vout->p_sys );
190 /*****************************************************************************
191 * Render: displays previously rendered output
192 *****************************************************************************
193 * This function send the currently rendered image to Invert image, waits
194 * until it is displayed and switch the two rendering buffers, preparing next
196 *****************************************************************************/
197 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
202 /* This is a new frame. Get a structure from the video_output. */
203 while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
206 if( p_vout->b_die || p_vout->b_error )
210 msleep( VOUT_OUTMEM_SLEEP );
213 vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
214 vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
216 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
218 uint8_t *p_in, *p_in_end, *p_line_end, *p_out;
220 p_in = p_pic->p[i_index].p_pixels;
221 p_in_end = p_in + p_pic->p[i_index].i_visible_lines
222 * p_pic->p[i_index].i_pitch;
224 p_out = p_outpic->p[i_index].p_pixels;
226 for( ; p_in < p_in_end ; )
228 uint64_t *p_in64, *p_out64;
230 p_line_end = p_in + p_pic->p[i_index].i_visible_pitch - 64;
232 p_in64 = (uint64_t*)p_in;
233 p_out64 = (uint64_t*)p_out;
235 for( ; (ptrdiff_t)p_in64 < (ptrdiff_t)p_line_end ; )
237 /* Do 64 pixels at a time */
238 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
239 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
240 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
241 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
244 p_in = (uint8_t*)p_in64;
245 p_out = (uint8_t*)p_out64;
248 for( ; p_in < p_line_end ; )
250 *p_out++ = ~( *p_in++ );
253 p_in += p_pic->p[i_index].i_pitch
254 - p_pic->p[i_index].i_visible_pitch;
255 p_out += p_outpic->p[i_index].i_pitch
256 - p_outpic->p[i_index].i_visible_pitch;
260 vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
262 vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
265 /*****************************************************************************
266 * SendEvents: forward mouse and keyboard events to the parent p_vout
267 *****************************************************************************/
268 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
269 vlc_value_t oldval, vlc_value_t newval, void *p_data )
271 var_Set( (vlc_object_t *)p_data, psz_var, newval );
276 /*****************************************************************************
277 * SendEventsToChild: forward events to the child/children vout
278 *****************************************************************************/
279 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
280 vlc_value_t oldval, vlc_value_t newval, void *p_data )
282 vout_thread_t *p_vout = (vout_thread_t *)p_this;
283 var_Set( p_vout->p_sys->p_vout, psz_var, newval );