1 /*****************************************************************************
2 * invert.c : Invert video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000, 2001, 2002, 2003 VideoLAN
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_category( CAT_VIDEO );
54 set_subcategory( SUBCAT_VIDEO_VFILTER );
55 set_capability( "video filter", 0 );
56 add_shortcut( "invert" );
57 set_callbacks( Create, Destroy );
60 /*****************************************************************************
61 * vout_sys_t: Invert video output method descriptor
62 *****************************************************************************
63 * This structure is part of the video output thread descriptor.
64 * It describes the Invert specific properties of an output thread.
65 *****************************************************************************/
68 vout_thread_t *p_vout;
71 /*****************************************************************************
72 * Control: control facility for the vout (forwards to child vout)
73 *****************************************************************************/
74 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
76 return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
79 /*****************************************************************************
80 * Create: allocates Invert video thread output method
81 *****************************************************************************
82 * This function allocates and initializes a Invert vout method.
83 *****************************************************************************/
84 static int Create( vlc_object_t *p_this )
86 vout_thread_t *p_vout = (vout_thread_t *)p_this;
88 /* Allocate structure */
89 p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
90 if( p_vout->p_sys == NULL )
92 msg_Err( p_vout, "out of memory" );
96 p_vout->pf_init = Init;
98 p_vout->pf_manage = NULL;
99 p_vout->pf_render = Render;
100 p_vout->pf_display = NULL;
101 p_vout->pf_control = Control;
106 /*****************************************************************************
107 * Init: initialize Invert video thread output method
108 *****************************************************************************/
109 static int Init( vout_thread_t *p_vout )
114 I_OUTPUTPICTURES = 0;
116 /* Initialize the output structure */
117 p_vout->output.i_chroma = p_vout->render.i_chroma;
118 p_vout->output.i_width = p_vout->render.i_width;
119 p_vout->output.i_height = p_vout->render.i_height;
120 p_vout->output.i_aspect = p_vout->render.i_aspect;
122 /* Try to open the real video output */
123 msg_Dbg( p_vout, "spawning the real video output" );
125 p_vout->p_sys->p_vout = vout_Create( p_vout,
126 p_vout->render.i_width, p_vout->render.i_height,
127 p_vout->render.i_chroma, p_vout->render.i_aspect );
129 /* Everything failed */
130 if( p_vout->p_sys->p_vout == NULL )
132 msg_Err( p_vout, "can't open vout, aborting" );
137 ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
139 ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
141 ADD_PARENT_CALLBACKS( SendEventsToChild );
146 /*****************************************************************************
147 * End: terminate Invert video thread output method
148 *****************************************************************************/
149 static void End( vout_thread_t *p_vout )
153 /* Free the fake output buffers we allocated */
154 for( i_index = I_OUTPUTPICTURES ; i_index ; )
157 free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
161 /*****************************************************************************
162 * Destroy: destroy Invert video thread output method
163 *****************************************************************************
164 * Terminate an output method created by InvertCreateOutputMethod
165 *****************************************************************************/
166 static void Destroy( vlc_object_t *p_this )
168 vout_thread_t *p_vout = (vout_thread_t *)p_this;
170 if( p_vout->p_sys->p_vout )
172 DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
173 vlc_object_detach( p_vout->p_sys->p_vout );
174 vout_Destroy( p_vout->p_sys->p_vout );
177 DEL_PARENT_CALLBACKS( SendEventsToChild );
179 free( p_vout->p_sys );
182 /*****************************************************************************
183 * Render: displays previously rendered output
184 *****************************************************************************
185 * This function send the currently rendered image to Invert image, waits
186 * until it is displayed and switch the two rendering buffers, preparing next
188 *****************************************************************************/
189 static void Render( vout_thread_t *p_vout, picture_t *p_pic )
194 /* This is a new frame. Get a structure from the video_output. */
195 while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
198 if( p_vout->b_die || p_vout->b_error )
202 msleep( VOUT_OUTMEM_SLEEP );
205 vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
206 vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
208 for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
210 uint8_t *p_in, *p_in_end, *p_line_end, *p_out;
212 p_in = p_pic->p[i_index].p_pixels;
213 p_in_end = p_in + p_pic->p[i_index].i_visible_lines
214 * p_pic->p[i_index].i_pitch;
216 p_out = p_outpic->p[i_index].p_pixels;
218 for( ; p_in < p_in_end ; )
220 uint64_t *p_in64, *p_out64;
222 p_line_end = p_in + p_pic->p[i_index].i_visible_pitch - 64;
224 p_in64 = (uint64_t*)p_in;
225 p_out64 = (uint64_t*)p_out;
227 for( ; (ptrdiff_t)p_in64 < (ptrdiff_t)p_line_end ; )
229 /* Do 64 pixels at a time */
230 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
231 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
232 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
233 *p_out64++ = ~*p_in64++; *p_out64++ = ~*p_in64++;
236 p_in = (uint8_t*)p_in64;
237 p_out = (uint8_t*)p_out64;
240 for( ; p_in < p_line_end ; )
242 *p_out++ = ~( *p_in++ );
245 p_in += p_pic->p[i_index].i_pitch
246 - p_pic->p[i_index].i_visible_pitch;
247 p_out += p_outpic->p[i_index].i_pitch
248 - p_outpic->p[i_index].i_visible_pitch;
252 vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
254 vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
257 /*****************************************************************************
258 * SendEvents: forward mouse and keyboard events to the parent p_vout
259 *****************************************************************************/
260 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
261 vlc_value_t oldval, vlc_value_t newval, void *p_data )
263 var_Set( (vlc_object_t *)p_data, psz_var, newval );
268 /*****************************************************************************
269 * SendEventsToChild: forward events to the child/children vout
270 *****************************************************************************/
271 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
272 vlc_value_t oldval, vlc_value_t newval, void *p_data )
274 vout_thread_t *p_vout = (vout_thread_t *)p_this;
275 var_Set( p_vout->p_sys->p_vout, psz_var, newval );