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276 lines
10 KiB
276 lines
10 KiB
/*****************************************************************************
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* invert.c : Invert video plugin for vlc
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*****************************************************************************
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* Copyright (C) 2000, 2001 VideoLAN
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* $Id: invert.c,v 1.8 2002/02/24 20:51:09 gbazin Exp $
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*
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* Authors: Samuel Hocevar <sam@zoy.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#include <errno.h>
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#include <stdlib.h> /* malloc(), free() */
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#include <string.h>
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#include <videolan/vlc.h>
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#include "video.h"
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#include "video_output.h"
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#include "filter_common.h"
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/*****************************************************************************
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* Capabilities defined in the other files.
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*****************************************************************************/
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static void vout_getfunctions( function_list_t * p_function_list );
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/*****************************************************************************
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* Build configuration tree.
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*****************************************************************************/
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MODULE_CONFIG_START
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MODULE_CONFIG_STOP
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MODULE_INIT_START
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SET_DESCRIPTION( "invert video module" )
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/* Capability score set to 0 because we don't want to be spawned
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* as a video output unless explicitly requested to */
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ADD_CAPABILITY( VOUT, 0 )
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ADD_SHORTCUT( "invert" )
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MODULE_INIT_STOP
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MODULE_ACTIVATE_START
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vout_getfunctions( &p_module->p_functions->vout );
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MODULE_ACTIVATE_STOP
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MODULE_DEACTIVATE_START
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MODULE_DEACTIVATE_STOP
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/*****************************************************************************
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* vout_sys_t: Invert video output method descriptor
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*****************************************************************************
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* This structure is part of the video output thread descriptor.
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* It describes the Invert specific properties of an output thread.
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*****************************************************************************/
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typedef struct vout_sys_s
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{
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struct vout_thread_s *p_vout;
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} vout_sys_t;
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int vout_Create ( struct vout_thread_s * );
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static int vout_Init ( struct vout_thread_s * );
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static void vout_End ( struct vout_thread_s * );
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static void vout_Destroy ( struct vout_thread_s * );
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static int vout_Manage ( struct vout_thread_s * );
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static void vout_Render ( struct vout_thread_s *, struct picture_s * );
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static void vout_Display ( struct vout_thread_s *, struct picture_s * );
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/*****************************************************************************
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* Functions exported as capabilities. They are declared as static so that
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* we don't pollute the namespace too much.
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*****************************************************************************/
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static void vout_getfunctions( function_list_t * p_function_list )
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{
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p_function_list->functions.vout.pf_create = vout_Create;
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p_function_list->functions.vout.pf_init = vout_Init;
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p_function_list->functions.vout.pf_end = vout_End;
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p_function_list->functions.vout.pf_destroy = vout_Destroy;
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p_function_list->functions.vout.pf_manage = vout_Manage;
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p_function_list->functions.vout.pf_render = vout_Render;
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p_function_list->functions.vout.pf_display = vout_Display;
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}
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/*****************************************************************************
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* vout_Create: allocates Invert video thread output method
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*****************************************************************************
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* This function allocates and initializes a Invert vout method.
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*****************************************************************************/
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static int vout_Create( vout_thread_t *p_vout )
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{
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/* Allocate structure */
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p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
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if( p_vout->p_sys == NULL )
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{
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intf_ErrMsg("error: %s", strerror(ENOMEM) );
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return( 1 );
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}
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return( 0 );
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}
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/*****************************************************************************
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* vout_Init: initialize Invert video thread output method
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*****************************************************************************/
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static int vout_Init( vout_thread_t *p_vout )
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{
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int i_index;
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char *psz_filter;
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picture_t *p_pic;
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I_OUTPUTPICTURES = 0;
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/* Initialize the output structure */
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p_vout->output.i_chroma = p_vout->render.i_chroma;
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p_vout->output.i_width = p_vout->render.i_width;
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p_vout->output.i_height = p_vout->render.i_height;
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p_vout->output.i_aspect = p_vout->render.i_aspect;
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/* Try to open the real video output */
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psz_filter = config_GetPszVariable( VOUT_FILTER_VAR );
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config_PutPszVariable( VOUT_FILTER_VAR, NULL );
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intf_WarnMsg( 1, "filter: spawning the real video output" );
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p_vout->p_sys->p_vout =
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vout_CreateThread( NULL,
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p_vout->render.i_width, p_vout->render.i_height,
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p_vout->render.i_chroma, p_vout->render.i_aspect );
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config_PutPszVariable( VOUT_FILTER_VAR, psz_filter );
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if( psz_filter ) free( psz_filter );
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/* Everything failed */
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if( p_vout->p_sys->p_vout == NULL )
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{
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intf_ErrMsg( "filter error: can't open vout, aborting" );
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return( 0 );
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}
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ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
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return( 0 );
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}
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/*****************************************************************************
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* vout_End: terminate Invert video thread output method
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*****************************************************************************/
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static void vout_End( vout_thread_t *p_vout )
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{
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int i_index;
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/* Free the fake output buffers we allocated */
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for( i_index = I_OUTPUTPICTURES ; i_index ; )
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{
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i_index--;
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free( PP_OUTPUTPICTURE[ i_index ]->p_data );
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}
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}
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/*****************************************************************************
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* vout_Destroy: destroy Invert video thread output method
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*****************************************************************************
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* Terminate an output method created by InvertCreateOutputMethod
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*****************************************************************************/
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static void vout_Destroy( vout_thread_t *p_vout )
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{
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vout_DestroyThread( p_vout->p_sys->p_vout, NULL );
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free( p_vout->p_sys );
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}
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/*****************************************************************************
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* vout_Manage: handle Invert events
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*****************************************************************************
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* This function should be called regularly by video output thread. It manages
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* console events. It returns a non null value on error.
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*****************************************************************************/
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static int vout_Manage( vout_thread_t *p_vout )
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{
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return( 0 );
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}
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/*****************************************************************************
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* vout_Render: displays previously rendered output
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*****************************************************************************
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* This function send the currently rendered image to Invert image, waits
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* until it is displayed and switch the two rendering buffers, preparing next
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* frame.
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*****************************************************************************/
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static void vout_Render( vout_thread_t *p_vout, picture_t *p_pic )
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{
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picture_t *p_outpic;
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int i_index;
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/* This is a new frame. Get a structure from the video_output. */
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while( ( p_outpic = vout_CreatePicture( p_vout->p_sys->p_vout, 0, 0, 0 ) )
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== NULL )
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{
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if( p_vout->b_die || p_vout->b_error )
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{
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return;
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}
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msleep( VOUT_OUTMEM_SLEEP );
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}
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vout_DatePicture( p_vout->p_sys->p_vout, p_outpic, p_pic->date );
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vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
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for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
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{
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u8 *p_in, *p_in_end, *p_out;
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p_in = p_pic->p[i_index].p_pixels;
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p_in_end = p_in - 64 + p_pic->p[i_index].i_lines
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* p_pic->p[i_index].i_pitch;
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p_out = p_outpic->p[i_index].p_pixels;
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for( ; p_in < p_in_end ; )
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{
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/* Do 64 pixels at a time */
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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*((u64*)p_out)++ = ~( *((u64*)p_in)++ );
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}
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p_in_end += 64;
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for( ; p_in < p_in_end ; )
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{
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/* Do 1 pixel at a time */
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*p_out++ = ~( *p_in++ );
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}
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}
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vout_UnlinkPicture( p_vout->p_sys->p_vout, p_outpic );
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vout_DisplayPicture( p_vout->p_sys->p_vout, p_outpic );
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}
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/*****************************************************************************
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* vout_Display: displays previously rendered output
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*****************************************************************************
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* This function send the currently rendered image to Invert image, waits
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* until it is displayed and switch the two rendering buffers, preparing next
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* frame.
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*****************************************************************************/
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static void vout_Display( vout_thread_t *p_vout, picture_t *p_pic )
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{
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;
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}
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