mirror of
https://code.videolan.org/videolan/vlc
synced 2024-09-12 13:44:56 +02:00
724461bdf2
There will be some regressions, I used automatic sed replacement with manual checks but there was a lot to change. It's only the first pass.
850 lines
29 KiB
C
850 lines
29 KiB
C
/*****************************************************************************
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* transform.c : transform image module for vlc
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*****************************************************************************
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* Copyright (C) 2000-2006 the VideoLAN team
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* $Id$
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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., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
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*****************************************************************************/
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/*****************************************************************************
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* Preamble
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*****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <vlc_common.h>
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#include <vlc_plugin.h>
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#include <vlc_vout.h>
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#include "filter_common.h"
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#include "filter_picture.h"
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#define TRANSFORM_MODE_HFLIP 1
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#define TRANSFORM_MODE_VFLIP 2
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#define TRANSFORM_MODE_90 3
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#define TRANSFORM_MODE_180 4
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#define TRANSFORM_MODE_270 5
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/*****************************************************************************
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* Local prototypes
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*****************************************************************************/
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static int Create ( vlc_object_t * );
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static void Destroy ( vlc_object_t * );
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static int Init ( vout_thread_t * );
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static void End ( vout_thread_t * );
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static void Render ( vout_thread_t *, picture_t * );
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static void FilterPlanar( vout_thread_t *, const picture_t *, picture_t * );
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static void FilterI422( vout_thread_t *, const picture_t *, picture_t * );
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static void FilterYUYV( vout_thread_t *, const picture_t *, picture_t * );
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static int MouseEvent( vlc_object_t *, char const *,
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vlc_value_t, vlc_value_t, void * );
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/*****************************************************************************
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* Module descriptor
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*****************************************************************************/
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#define TYPE_TEXT N_("Transform type")
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#define TYPE_LONGTEXT N_("One of '90', '180', '270', 'hflip' and 'vflip'")
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static const char *const type_list[] = { "90", "180", "270", "hflip", "vflip" };
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static const char *const type_list_text[] = { N_("Rotate by 90 degrees"),
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N_("Rotate by 180 degrees"), N_("Rotate by 270 degrees"),
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N_("Flip horizontally"), N_("Flip vertically") };
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#define CFG_PREFIX "transform-"
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vlc_module_begin ()
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set_description( N_("Video transformation filter") )
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set_shortname( N_("Transformation"))
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set_capability( "video filter", 0 )
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set_category( CAT_VIDEO )
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set_subcategory( SUBCAT_VIDEO_VFILTER )
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add_string( CFG_PREFIX "type", "90", NULL,
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TYPE_TEXT, TYPE_LONGTEXT, false)
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change_string_list( type_list, type_list_text, 0)
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add_shortcut( "transform" )
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set_callbacks( Create, Destroy )
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vlc_module_end ()
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static const char *const ppsz_filter_options[] = {
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"type", NULL
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};
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/*****************************************************************************
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* vout_sys_t: Transform 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 Transform specific properties of an output thread.
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*****************************************************************************/
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struct vout_sys_t
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{
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int i_mode;
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bool b_rotation;
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vout_thread_t *p_vout;
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void (*pf_filter)( vout_thread_t *, const picture_t *, picture_t * );
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};
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/*****************************************************************************
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* Control: control facility for the vout (forwards to child vout)
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*****************************************************************************/
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static int Control( vout_thread_t *p_vout, int i_query, va_list args )
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{
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return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
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}
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/*****************************************************************************
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* Create: allocates Transform video thread output method
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*****************************************************************************
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* This function allocates and initializes a Transform vout method.
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*****************************************************************************/
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static int Create( vlc_object_t *p_this )
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{
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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char *psz_method;
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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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return VLC_ENOMEM;
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p_vout->pf_init = Init;
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p_vout->pf_end = End;
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p_vout->pf_manage = NULL;
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p_vout->pf_render = Render;
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p_vout->pf_display = NULL;
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p_vout->pf_control = Control;
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config_ChainParse( p_vout, CFG_PREFIX, ppsz_filter_options,
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p_vout->p_cfg );
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/* Look what method was requested */
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psz_method = var_CreateGetNonEmptyStringCommand( p_vout, "transform-type" );
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switch( p_vout->fmt_in.i_chroma )
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{
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CASE_PLANAR_YUV_SQUARE
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case VLC_CODEC_GREY:
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p_vout->p_sys->pf_filter = FilterPlanar;
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break;
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case VLC_CODEC_I422:
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case VLC_CODEC_J422:
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p_vout->p_sys->pf_filter = FilterI422;
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break;
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CASE_PACKED_YUV_422
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p_vout->p_sys->pf_filter = FilterYUYV;
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break;
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default:
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msg_Err( p_vout, "Unsupported chroma" );
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free( p_vout->p_sys );
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return VLC_EGENERIC;
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}
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if( psz_method == NULL )
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{
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msg_Err( p_vout, "configuration variable %s empty", "transform-type" );
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msg_Err( p_vout, "no valid transform mode provided, using '90'" );
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p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
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p_vout->p_sys->b_rotation = 1;
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}
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else
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{
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if( !strcmp( psz_method, "hflip" ) )
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{
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p_vout->p_sys->i_mode = TRANSFORM_MODE_HFLIP;
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p_vout->p_sys->b_rotation = 0;
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}
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else if( !strcmp( psz_method, "vflip" ) )
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{
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p_vout->p_sys->i_mode = TRANSFORM_MODE_VFLIP;
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p_vout->p_sys->b_rotation = 0;
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}
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else if( !strcmp( psz_method, "90" ) )
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{
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p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
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p_vout->p_sys->b_rotation = 1;
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}
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else if( !strcmp( psz_method, "180" ) )
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{
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p_vout->p_sys->i_mode = TRANSFORM_MODE_180;
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p_vout->p_sys->b_rotation = 0;
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}
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else if( !strcmp( psz_method, "270" ) )
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{
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p_vout->p_sys->i_mode = TRANSFORM_MODE_270;
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p_vout->p_sys->b_rotation = 1;
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}
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else
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{
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msg_Err( p_vout, "no valid transform mode provided, using '90'" );
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p_vout->p_sys->i_mode = TRANSFORM_MODE_90;
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p_vout->p_sys->b_rotation = 1;
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}
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free( psz_method );
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}
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* Init: initialize Transform video thread output method
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*****************************************************************************/
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static int Init( vout_thread_t *p_vout )
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{
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video_format_t fmt;
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I_OUTPUTPICTURES = 0;
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memset( &fmt, 0, sizeof(video_format_t) );
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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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p_vout->fmt_out = p_vout->fmt_in;
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fmt = p_vout->fmt_out;
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/* Try to open the real video output */
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msg_Dbg( p_vout, "spawning the real video output" );
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if( p_vout->p_sys->b_rotation )
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{
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fmt.i_width = p_vout->fmt_out.i_height;
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fmt.i_visible_width = p_vout->fmt_out.i_visible_height;
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fmt.i_x_offset = p_vout->fmt_out.i_y_offset;
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fmt.i_height = p_vout->fmt_out.i_width;
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fmt.i_visible_height = p_vout->fmt_out.i_visible_width;
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fmt.i_y_offset = p_vout->fmt_out.i_x_offset;
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fmt.i_aspect = VOUT_ASPECT_FACTOR *
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(uint64_t)VOUT_ASPECT_FACTOR / fmt.i_aspect;
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fmt.i_sar_num = p_vout->fmt_out.i_sar_den;
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fmt.i_sar_den = p_vout->fmt_out.i_sar_num;
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}
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p_vout->p_sys->p_vout = vout_Create( p_vout, &fmt );
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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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msg_Err( p_vout, "cannot open vout, aborting" );
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return VLC_EGENERIC;
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}
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vout_filter_AllocateDirectBuffers( p_vout, VOUT_MAX_PICTURES );
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vout_filter_AddChild( p_vout, p_vout->p_sys->p_vout, MouseEvent );
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return VLC_SUCCESS;
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}
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/*****************************************************************************
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* End: terminate Transform video thread output method
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*****************************************************************************/
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static void End( vout_thread_t *p_vout )
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{
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vout_sys_t *p_sys = p_vout->p_sys;
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vout_filter_DelChild( p_vout, p_sys->p_vout, MouseEvent );
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vout_CloseAndRelease( p_sys->p_vout );
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vout_filter_ReleaseDirectBuffers( p_vout );
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}
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/*****************************************************************************
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* Destroy: destroy Transform video thread output method
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*****************************************************************************
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* Terminate an output method created by TransformCreateOutputMethod
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*****************************************************************************/
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static void Destroy( vlc_object_t *p_this )
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{
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vout_thread_t *p_vout = (vout_thread_t *)p_this;
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free( p_vout->p_sys );
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}
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/*****************************************************************************
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* Render: displays previously rendered output
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*****************************************************************************
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* This function send the currently rendered image to Transform 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 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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/* 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( !vlc_object_alive (p_vout) || 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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p_outpic->date = p_pic->date;
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vout_LinkPicture( p_vout->p_sys->p_vout, p_outpic );
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p_vout->p_sys->pf_filter( p_vout, p_pic, p_outpic );
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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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* Forward mouse event with proper conversion.
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*/
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static int MouseEvent( vlc_object_t *p_this, char const *psz_var,
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vlc_value_t oldval, vlc_value_t newval, void *p_data )
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{
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vout_thread_t *p_vout = p_data;
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VLC_UNUSED(p_this); VLC_UNUSED(oldval);
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/* Translate the mouse coordinates
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* FIXME missing lock */
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if( !strcmp( psz_var, "mouse-x" ) )
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{
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switch( p_vout->p_sys->i_mode )
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{
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case TRANSFORM_MODE_270:
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newval.i_int = p_vout->p_sys->p_vout->output.i_width
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- newval.i_int;
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case TRANSFORM_MODE_90:
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psz_var = "mouse-y";
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break;
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case TRANSFORM_MODE_180:
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case TRANSFORM_MODE_HFLIP:
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newval.i_int = p_vout->p_sys->p_vout->output.i_width
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- newval.i_int;
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break;
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case TRANSFORM_MODE_VFLIP:
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default:
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break;
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}
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}
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else if( !strcmp( psz_var, "mouse-y" ) )
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{
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switch( p_vout->p_sys->i_mode )
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{
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case TRANSFORM_MODE_90:
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newval.i_int = p_vout->p_sys->p_vout->output.i_height
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- newval.i_int;
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case TRANSFORM_MODE_270:
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psz_var = "mouse-x";
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break;
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case TRANSFORM_MODE_180:
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case TRANSFORM_MODE_VFLIP:
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newval.i_int = p_vout->p_sys->p_vout->output.i_height
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- newval.i_int;
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break;
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case TRANSFORM_MODE_HFLIP:
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default:
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break;
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}
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}
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return var_Set( p_vout, psz_var, newval );
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}
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static void FilterPlanar( vout_thread_t *p_vout,
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const picture_t *p_pic, picture_t *p_outpic )
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{
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int i_index;
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switch( p_vout->p_sys->i_mode )
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{
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case TRANSFORM_MODE_90:
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for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
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{
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int i_pitch = p_pic->p[i_index].i_pitch;
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uint8_t *p_in = p_pic->p[i_index].p_pixels;
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uint8_t *p_out = p_outpic->p[i_index].p_pixels;
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uint8_t *p_out_end = p_out +
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p_outpic->p[i_index].i_visible_lines *
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p_outpic->p[i_index].i_pitch;
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for( ; p_out < p_out_end ; )
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{
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uint8_t *p_line_end;
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p_out_end -= p_outpic->p[i_index].i_pitch
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- p_outpic->p[i_index].i_visible_pitch;
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p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
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i_pitch;
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for( ; p_in < p_line_end ; )
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{
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p_line_end -= i_pitch;
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*(--p_out_end) = *p_line_end;
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}
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p_in++;
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}
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}
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break;
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case TRANSFORM_MODE_180:
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for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
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{
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uint8_t *p_in = p_pic->p[i_index].p_pixels;
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uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
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* p_pic->p[i_index].i_pitch;
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uint8_t *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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uint8_t *p_line_start = p_in_end
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- p_pic->p[i_index].i_pitch;
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p_in_end -= p_pic->p[i_index].i_pitch
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- p_pic->p[i_index].i_visible_pitch;
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for( ; p_line_start < p_in_end ; )
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{
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*p_out++ = *(--p_in_end);
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}
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p_out += p_outpic->p[i_index].i_pitch
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- p_outpic->p[i_index].i_visible_pitch;
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}
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}
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break;
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case TRANSFORM_MODE_270:
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for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
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{
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int i_pitch = p_pic->p[i_index].i_pitch;
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uint8_t *p_in = p_pic->p[i_index].p_pixels;
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uint8_t *p_out = p_outpic->p[i_index].p_pixels;
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uint8_t *p_out_end = p_out +
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p_outpic->p[i_index].i_visible_lines *
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p_outpic->p[i_index].i_pitch;
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for( ; p_out < p_out_end ; )
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{
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uint8_t *p_in_end;
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p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
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i_pitch;
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for( ; p_in < p_in_end ; )
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{
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p_in_end -= i_pitch;
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*p_out++ = *p_in_end;
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}
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p_out += p_outpic->p[i_index].i_pitch
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- p_outpic->p[i_index].i_visible_pitch;
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p_in++;
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}
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}
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break;
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case TRANSFORM_MODE_HFLIP:
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for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
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{
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uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
|
|
* p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
|
|
for( ; p_in < p_in_end ; )
|
|
{
|
|
p_in_end -= p_pic->p[i_index].i_pitch;
|
|
vlc_memcpy( p_out, p_in_end,
|
|
p_pic->p[i_index].i_visible_pitch );
|
|
p_out += p_pic->p[i_index].i_pitch;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TRANSFORM_MODE_VFLIP:
|
|
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
|
|
{
|
|
uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
|
|
* p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
|
|
for( ; p_in < p_in_end ; )
|
|
{
|
|
uint8_t *p_line_end = p_in
|
|
+ p_pic->p[i_index].i_visible_pitch;
|
|
|
|
for( ; p_in < p_line_end ; )
|
|
{
|
|
*p_out++ = *(--p_line_end);
|
|
}
|
|
|
|
p_in += p_pic->p[i_index].i_pitch;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void FilterI422( vout_thread_t *p_vout,
|
|
const picture_t *p_pic, picture_t *p_outpic )
|
|
{
|
|
int i_index;
|
|
switch( p_vout->p_sys->i_mode )
|
|
{
|
|
case TRANSFORM_MODE_180:
|
|
case TRANSFORM_MODE_HFLIP:
|
|
case TRANSFORM_MODE_VFLIP:
|
|
/* Fall back on the default implementation */
|
|
FilterPlanar( p_vout, p_pic, p_outpic );
|
|
return;
|
|
|
|
case TRANSFORM_MODE_90:
|
|
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
|
|
{
|
|
int i_pitch = p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
uint8_t *p_out_end = p_out +
|
|
p_outpic->p[i_index].i_visible_lines *
|
|
p_outpic->p[i_index].i_pitch;
|
|
|
|
if( i_index == 0 )
|
|
{
|
|
for( ; p_out < p_out_end ; )
|
|
{
|
|
uint8_t *p_line_end;
|
|
|
|
p_out_end -= p_outpic->p[i_index].i_pitch
|
|
- p_outpic->p[i_index].i_visible_pitch;
|
|
p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
|
|
i_pitch;
|
|
|
|
for( ; p_in < p_line_end ; )
|
|
{
|
|
p_line_end -= i_pitch;
|
|
*(--p_out_end) = *p_line_end;
|
|
}
|
|
|
|
p_in++;
|
|
}
|
|
}
|
|
else /* i_index == 1 or 2 */
|
|
{
|
|
for( ; p_out < p_out_end ; )
|
|
{
|
|
uint8_t *p_line_end, *p_out_end2;
|
|
|
|
p_out_end -= p_outpic->p[i_index].i_pitch
|
|
- p_outpic->p[i_index].i_visible_pitch;
|
|
p_out_end2 = p_out_end - p_outpic->p[i_index].i_pitch;
|
|
p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
|
|
i_pitch;
|
|
|
|
for( ; p_in < p_line_end ; )
|
|
{
|
|
uint8_t p1, p2;
|
|
|
|
p_line_end -= i_pitch;
|
|
p1 = *p_line_end;
|
|
p_line_end -= i_pitch;
|
|
p2 = *p_line_end;
|
|
|
|
/* Trick for (x+y)/2 without overflow, based on
|
|
* x + y == (x ^ y) + 2 * (x & y) */
|
|
*(--p_out_end) = (p1 & p2) + ((p1 ^ p2) / 2);
|
|
*(--p_out_end2) = (p1 & p2) + ((p1 ^ p2) / 2);
|
|
}
|
|
|
|
p_out_end = p_out_end2;
|
|
p_in++;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TRANSFORM_MODE_270:
|
|
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
|
|
{
|
|
int i_pitch = p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
uint8_t *p_out_end = p_out +
|
|
p_outpic->p[i_index].i_visible_lines *
|
|
p_outpic->p[i_index].i_pitch;
|
|
|
|
if( i_index == 0 )
|
|
{
|
|
for( ; p_out < p_out_end ; )
|
|
{
|
|
uint8_t *p_in_end;
|
|
|
|
p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
|
|
i_pitch;
|
|
|
|
for( ; p_in < p_in_end ; )
|
|
{
|
|
p_in_end -= i_pitch;
|
|
*p_out++ = *p_in_end;
|
|
}
|
|
|
|
p_out += p_outpic->p[i_index].i_pitch
|
|
- p_outpic->p[i_index].i_visible_pitch;
|
|
p_in++;
|
|
}
|
|
}
|
|
else /* i_index == 1 or 2 */
|
|
{
|
|
for( ; p_out < p_out_end ; )
|
|
{
|
|
uint8_t *p_in_end, *p_out2;
|
|
|
|
p_in_end = p_in + p_pic->p[i_index].i_visible_lines *
|
|
i_pitch;
|
|
p_out2 = p_out + p_outpic->p[i_index].i_pitch;
|
|
|
|
for( ; p_in < p_in_end ; )
|
|
{
|
|
uint8_t p1, p2;
|
|
|
|
p_in_end -= i_pitch;
|
|
p1 = *p_in_end;
|
|
p_in_end -= i_pitch;
|
|
p2 = *p_in_end;
|
|
|
|
/* Trick for (x+y)/2 without overflow, based on
|
|
* x + y == (x ^ y) + 2 * (x & y) */
|
|
*p_out++ = (p1 & p2) + ((p1 ^ p2) / 2);
|
|
*p_out2++ = (p1 & p2) + ((p1 ^ p2) / 2);
|
|
}
|
|
|
|
p_out2 += p_outpic->p[i_index].i_pitch
|
|
- p_outpic->p[i_index].i_visible_pitch;
|
|
p_out = p_out2;
|
|
p_in++;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void FilterYUYV( vout_thread_t *p_vout,
|
|
const picture_t *p_pic, picture_t *p_outpic )
|
|
{
|
|
int i_index;
|
|
int i_y_offset, i_u_offset, i_v_offset;
|
|
if( GetPackedYuvOffsets( p_pic->format.i_chroma, &i_y_offset,
|
|
&i_u_offset, &i_v_offset ) != VLC_SUCCESS )
|
|
return;
|
|
|
|
switch( p_vout->p_sys->i_mode )
|
|
{
|
|
case TRANSFORM_MODE_HFLIP:
|
|
/* Fall back on the default implementation */
|
|
FilterPlanar( p_vout, p_pic, p_outpic );
|
|
return;
|
|
|
|
case TRANSFORM_MODE_90:
|
|
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
|
|
{
|
|
int i_pitch = p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
uint8_t *p_out_end = p_out +
|
|
p_outpic->p[i_index].i_visible_lines *
|
|
p_outpic->p[i_index].i_pitch;
|
|
|
|
int i_offset = i_u_offset;
|
|
int i_offset2 = i_v_offset;
|
|
for( ; p_out < p_out_end ; )
|
|
{
|
|
uint8_t *p_line_end;
|
|
|
|
p_out_end -= p_outpic->p[i_index].i_pitch
|
|
- p_outpic->p[i_index].i_visible_pitch;
|
|
p_line_end = p_in + p_pic->p[i_index].i_visible_lines *
|
|
i_pitch;
|
|
|
|
for( ; p_in < p_line_end ; )
|
|
{
|
|
p_line_end -= i_pitch;
|
|
p_out_end -= 4;
|
|
p_out_end[i_y_offset+2] = p_line_end[i_y_offset];
|
|
p_out_end[i_u_offset] = p_line_end[i_offset];
|
|
p_line_end -= i_pitch;
|
|
p_out_end[i_y_offset] = p_line_end[i_y_offset];
|
|
p_out_end[i_v_offset] = p_line_end[i_offset2];
|
|
}
|
|
|
|
p_in += 2;
|
|
|
|
{
|
|
int a = i_offset;
|
|
i_offset = i_offset2;
|
|
i_offset2 = a;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TRANSFORM_MODE_180:
|
|
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
|
|
{
|
|
uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
|
|
* p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
|
|
for( ; p_in < p_in_end ; )
|
|
{
|
|
uint8_t *p_line_start = p_in_end
|
|
- p_pic->p[i_index].i_pitch;
|
|
p_in_end -= p_pic->p[i_index].i_pitch
|
|
- p_pic->p[i_index].i_visible_pitch;
|
|
|
|
for( ; p_line_start < p_in_end ; )
|
|
{
|
|
p_in_end -= 4;
|
|
p_out[i_y_offset] = p_in_end[i_y_offset+2];
|
|
p_out[i_u_offset] = p_in_end[i_u_offset];
|
|
p_out[i_y_offset+2] = p_in_end[i_y_offset];
|
|
p_out[i_v_offset] = p_in_end[i_v_offset];
|
|
p_out += 4;
|
|
}
|
|
|
|
p_out += p_outpic->p[i_index].i_pitch
|
|
- p_outpic->p[i_index].i_visible_pitch;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TRANSFORM_MODE_270:
|
|
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
|
|
{
|
|
int i_pitch = p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
uint8_t *p_out_end = p_out +
|
|
p_outpic->p[i_index].i_visible_lines *
|
|
p_outpic->p[i_index].i_pitch;
|
|
|
|
int i_offset = i_u_offset;
|
|
int i_offset2 = i_v_offset;
|
|
for( ; p_out < p_out_end ; )
|
|
{
|
|
uint8_t *p_in_end;
|
|
|
|
p_in_end = p_in
|
|
+ p_pic->p[i_index].i_visible_lines * i_pitch;
|
|
|
|
for( ; p_in < p_in_end ; )
|
|
{
|
|
p_in_end -= i_pitch;
|
|
p_out[i_y_offset] = p_in_end[i_y_offset];
|
|
p_out[i_u_offset] = p_in_end[i_offset];
|
|
p_in_end -= i_pitch;
|
|
p_out[i_y_offset+2] = p_in_end[i_y_offset];
|
|
p_out[i_v_offset] = p_in_end[i_offset2];
|
|
p_out += 4;
|
|
}
|
|
|
|
p_out += p_outpic->p[i_index].i_pitch
|
|
- p_outpic->p[i_index].i_visible_pitch;
|
|
p_in += 2;
|
|
|
|
{
|
|
int a = i_offset;
|
|
i_offset = i_offset2;
|
|
i_offset2 = a;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TRANSFORM_MODE_VFLIP:
|
|
for( i_index = 0 ; i_index < p_pic->i_planes ; i_index++ )
|
|
{
|
|
uint8_t *p_in = p_pic->p[i_index].p_pixels;
|
|
uint8_t *p_in_end = p_in + p_pic->p[i_index].i_visible_lines
|
|
* p_pic->p[i_index].i_pitch;
|
|
|
|
uint8_t *p_out = p_outpic->p[i_index].p_pixels;
|
|
|
|
for( ; p_in < p_in_end ; )
|
|
{
|
|
uint8_t *p_line_end = p_in
|
|
+ p_pic->p[i_index].i_visible_pitch;
|
|
|
|
for( ; p_in < p_line_end ; )
|
|
{
|
|
p_line_end -= 4;
|
|
p_out[i_y_offset] = p_line_end[i_y_offset+2];
|
|
p_out[i_u_offset] = p_line_end[i_u_offset];
|
|
p_out[i_y_offset+2] = p_line_end[i_y_offset];
|
|
p_out[i_v_offset] = p_line_end[i_v_offset];
|
|
p_out += 4;
|
|
}
|
|
|
|
p_in += p_pic->p[i_index].i_pitch;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|