X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=modules%2Fcodec%2Fdvbsub.c;h=3345eeb2e7e159dccfae9642face022177ad7e82;hb=7cec1ea277ecd0112adee88f9154c17e5205e3c2;hp=a56c83d554742804d2d1732d179d9950d75db25f;hpb=37a2578ce4265f4ed495290923e3fa674c662656;p=vlc diff --git a/modules/codec/dvbsub.c b/modules/codec/dvbsub.c index a56c83d554..3345eeb2e7 100644 --- a/modules/codec/dvbsub.c +++ b/modules/codec/dvbsub.c @@ -45,7 +45,6 @@ #include #include -#include #include #include @@ -86,29 +85,30 @@ static int OpenEncoder ( vlc_object_t * ); static void CloseEncoder( vlc_object_t * ); static block_t *Encode ( encoder_t *, subpicture_t * ); -vlc_module_begin(); +vlc_module_begin () # define DVBSUB_CFG_PREFIX "dvbsub-" - set_description( N_("DVB subtitles decoder") ); - set_capability( "decoder", 50 ); - set_category( CAT_INPUT ); - set_subcategory( SUBCAT_INPUT_SCODEC ); - set_callbacks( Open, Close ); - - add_integer( DVBSUB_CFG_PREFIX "position", 8, NULL, POS_TEXT, POS_LONGTEXT, true ); - change_integer_list( pi_pos_values, ppsz_pos_descriptions, 0 ); - add_integer( DVBSUB_CFG_PREFIX "x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, false ); - add_integer( DVBSUB_CFG_PREFIX "y", -1, NULL, POSY_TEXT, POSY_LONGTEXT, false ); + set_description( N_("DVB subtitles decoder") ) + set_shortname( N_("DVB subtitles") ) + set_capability( "decoder", 50 ) + set_category( CAT_INPUT ) + set_subcategory( SUBCAT_INPUT_SCODEC ) + set_callbacks( Open, Close ) + + add_integer( DVBSUB_CFG_PREFIX "position", 8, NULL, POS_TEXT, POS_LONGTEXT, true ) + change_integer_list( pi_pos_values, ppsz_pos_descriptions, NULL ) + add_integer( DVBSUB_CFG_PREFIX "x", -1, NULL, POSX_TEXT, POSX_LONGTEXT, false ) + add_integer( DVBSUB_CFG_PREFIX "y", -1, NULL, POSY_TEXT, POSY_LONGTEXT, false ) # define ENC_CFG_PREFIX "sout-dvbsub-" - add_submodule(); - set_description( N_("DVB subtitles encoder") ); - set_capability( "encoder", 100 ); - set_callbacks( OpenEncoder, CloseEncoder ); + add_submodule () + set_description( N_("DVB subtitles encoder") ) + set_capability( "encoder", 100 ) + set_callbacks( OpenEncoder, CloseEncoder ) - add_integer( ENC_CFG_PREFIX "x", -1, NULL, ENC_POSX_TEXT, ENC_POSX_LONGTEXT, false ); - add_integer( ENC_CFG_PREFIX "y", -1, NULL, ENC_POSY_TEXT, ENC_POSY_LONGTEXT, false ); - add_obsolete_integer( ENC_CFG_PREFIX "timeout" ); /* Suppressed since 0.8.5 */ -vlc_module_end(); + add_integer( ENC_CFG_PREFIX "x", -1, NULL, ENC_POSX_TEXT, ENC_POSX_LONGTEXT, false ) + add_integer( ENC_CFG_PREFIX "y", -1, NULL, ENC_POSY_TEXT, ENC_POSY_LONGTEXT, false ) + add_obsolete_integer( ENC_CFG_PREFIX "timeout" ) /* Suppressed since 0.8.5 */ +vlc_module_end () static const char *const ppsz_enc_options[] = { "x", "y", NULL }; @@ -295,7 +295,7 @@ static int Open( vlc_object_t *p_this ) vlc_value_t val; int i_posx, i_posy; - if( p_dec->fmt_in.i_codec != VLC_FOURCC('d','v','b','s') ) + if( p_dec->fmt_in.i_codec != VLC_CODEC_DVBS ) { return VLC_EGENERIC; } @@ -329,7 +329,7 @@ static int Open( vlc_object_t *p_this ) i_posy = val.i_int; /* Check if subpicture position was overridden */ - p_sys->b_absolute = false; + p_sys->b_absolute = true; p_sys->i_spu_x = p_sys->i_spu_y = 0; if( ( i_posx >= 0 ) && ( i_posy >= 0 ) ) @@ -339,7 +339,8 @@ static int Open( vlc_object_t *p_this ) p_sys->i_spu_y = i_posy; } - es_format_Init( &p_dec->fmt_out, SPU_ES, VLC_FOURCC( 'd','v','b','s' ) ); + p_dec->fmt_out.i_cat = SPU_ES; + p_dec->fmt_out.i_codec = 0; default_clut_init( p_dec ); @@ -838,13 +839,12 @@ static void decode_region_composition( decoder_t *p_dec, bs_t *s ) msg_Dbg( p_dec, "new region: %i", i_id ); #endif p_region = *pp_region = malloc( sizeof(dvbsub_region_t) ); - if( p_region ) - { - memset( p_region, 0, sizeof(dvbsub_region_t) ); - p_region->p_object_defs = NULL; - p_region->p_pixbuf = NULL; - p_region->p_next = NULL; - } + if( !p_region ) + return; + memset( p_region, 0, sizeof(dvbsub_region_t) ); + p_region->p_object_defs = NULL; + p_region->p_pixbuf = NULL; + p_region->p_next = NULL; } /* Region attributes */ @@ -932,7 +932,7 @@ static void decode_region_composition( decoder_t *p_dec, bs_t *s ) p_obj->i_x = bs_read( s, 12 ); bs_skip( s, 4 ); /* Reserved */ p_obj->i_y = bs_read( s, 12 ); - p_obj->psz_text = 0; + p_obj->psz_text = NULL; i_processed_length += 6; @@ -1446,10 +1446,42 @@ static subpicture_t *render( decoder_t *p_dec ) subpicture_t *p_spu; subpicture_region_t **pp_spu_region; int i, j, i_timeout = 0; + int i_base_x; + int i_base_y; /* Allocate the subpicture internal data. */ - p_spu = p_dec->pf_spu_buffer_new( p_dec ); - if( !p_spu ) return NULL; + p_spu = decoder_NewSubpicture( p_dec ); + if( !p_spu ) + return NULL; + + p_spu->b_absolute = p_sys->b_absolute; + /* Set the pf_render callback */ + p_spu->i_start = (mtime_t) p_sys->i_pts; + //p_spu->i_stop = (mtime_t) 0; + p_spu->b_ephemer = true; + //p_spu->b_fade = true; + //p_spu->i_stop = p_spu->i_start + (mtime_t) (i_timeout * 1000000); + + /* Correct positioning of SPU */ + i_base_x = p_sys->i_spu_x; + i_base_y = p_sys->i_spu_y; + p_spu->i_original_picture_width = 720; + p_spu->i_original_picture_height = 576; + + if( p_sys->p_display ) + { + p_spu->i_original_picture_width = p_sys->p_display->i_width; + p_spu->i_original_picture_height = p_sys->p_display->i_height; + + if( p_sys->p_display->b_windowed ) + { + /* TODO: check that this actually works */ + p_spu->i_original_picture_width = p_sys->p_display->i_max_x - p_sys->p_display->i_x; + p_spu->i_original_picture_height = p_sys->p_display->i_max_y - p_sys->p_display->i_y; + i_base_x += p_sys->p_display->i_x; + i_base_y += p_sys->p_display->i_y; + } + } pp_spu_region = &p_spu->p_region; @@ -1468,6 +1500,7 @@ static subpicture_t *render( decoder_t *p_dec ) subpicture_region_t *p_spu_region; uint8_t *p_src, *p_dst; video_format_t fmt; + video_palette_t palette; int i_pitch; i_timeout = p_sys->p_page->i_timeout; @@ -1503,29 +1536,17 @@ static subpicture_t *render( decoder_t *p_dec ) continue; } - /* FIXME: don't create a subpicture region with VLC_FOURCC YUVP + /* FIXME: don't create a subpicture region with VLC CODEC YUVP * when it actually is a TEXT region */ /* Create new SPU region */ memset( &fmt, 0, sizeof(video_format_t) ); - fmt.i_chroma = VLC_FOURCC('Y','U','V','P'); + fmt.i_chroma = VLC_CODEC_YUVP; fmt.i_aspect = 0; /* 0 means use aspect ratio of background video */ fmt.i_width = fmt.i_visible_width = p_region->i_width; fmt.i_height = fmt.i_visible_height = p_region->i_height; fmt.i_x_offset = fmt.i_y_offset = 0; - p_spu_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt ); - if( !p_spu_region ) - { - msg_Err( p_dec, "cannot allocate SPU region" ); - continue; - } - p_spu_region->i_x = p_regiondef->i_x; - p_spu_region->i_y = p_regiondef->i_y; - p_spu_region->i_align = p_sys->i_spu_position; - *pp_spu_region = p_spu_region; - pp_spu_region = &p_spu_region->p_next; - - /* Build palette */ + fmt.p_palette = &palette; fmt.p_palette->i_entries = ( p_region->i_depth == 1 ) ? 4 : ( ( p_region->i_depth == 2 ) ? 16 : 256 ); p_color = ( p_region->i_depth == 1 ) ? p_clut->c_2b : @@ -1538,9 +1559,21 @@ static subpicture_t *render( decoder_t *p_dec ) fmt.p_palette->palette[j][3] = 0xff - p_color[j].T; } + p_spu_region = subpicture_region_New( &fmt ); + if( !p_spu_region ) + { + msg_Err( p_dec, "cannot allocate SPU region" ); + continue; + } + p_spu_region->i_x = i_base_x + p_regiondef->i_x; + p_spu_region->i_y = i_base_y + p_regiondef->i_y; + p_spu_region->i_align = p_sys->i_spu_position; + *pp_spu_region = p_spu_region; + pp_spu_region = &p_spu_region->p_next; + p_src = p_region->p_pixbuf; - p_dst = p_spu_region->picture.Y_PIXELS; - i_pitch = p_spu_region->picture.Y_PITCH; + p_dst = p_spu_region->p_picture->Y_PIXELS; + i_pitch = p_spu_region->p_picture->Y_PITCH; /* Copy pixel buffer */ for( j = 0; j < p_region->i_height; j++ ) @@ -1561,12 +1594,12 @@ static subpicture_t *render( decoder_t *p_dec ) /* Create new SPU region */ memset( &fmt, 0, sizeof(video_format_t) ); - fmt.i_chroma = VLC_FOURCC('T','E','X','T'); + fmt.i_chroma = VLC_CODEC_TEXT; fmt.i_aspect = VOUT_ASPECT_FACTOR; fmt.i_width = fmt.i_visible_width = p_region->i_width; fmt.i_height = fmt.i_visible_height = p_region->i_height; fmt.i_x_offset = fmt.i_y_offset = 0; - p_spu_region = p_spu->pf_create_region( VLC_OBJECT(p_dec), &fmt ); + p_spu_region = subpicture_region_New( &fmt ); if( !p_region ) { msg_Err( p_dec, "cannot allocate SPU region" ); @@ -1574,45 +1607,14 @@ static subpicture_t *render( decoder_t *p_dec ) } p_spu_region->psz_text = strdup( p_object_def->psz_text ); - p_spu_region->i_x = p_regiondef->i_x + p_object_def->i_x; - p_spu_region->i_y = p_regiondef->i_y + p_object_def->i_y; + p_spu_region->i_x = i_base_x + p_regiondef->i_x + p_object_def->i_x; + p_spu_region->i_y = i_base_y + p_regiondef->i_y + p_object_def->i_y; p_spu_region->i_align = p_sys->i_spu_position; *pp_spu_region = p_spu_region; pp_spu_region = &p_spu_region->p_next; } } - /* Set the pf_render callback */ - p_spu->i_start = (mtime_t) p_sys->i_pts; - //p_spu->i_stop = (mtime_t) 0; - p_spu->b_ephemer = true; - p_spu->b_pausable = true; - //p_spu->b_fade = true; - //p_spu->i_stop = p_spu->i_start + (mtime_t) (i_timeout * 1000000); - - /* Correct positioning of SPU */ - p_spu->b_absolute = p_sys->b_absolute; - p_spu->i_flags = p_sys->i_spu_position; - p_spu->i_x = p_sys->i_spu_x; - p_spu->i_y = p_sys->i_spu_y; - p_spu->i_original_picture_width = 720; - p_spu->i_original_picture_height = 576; - - if( p_sys->p_display ) - { - p_spu->i_original_picture_width = p_sys->p_display->i_width; - p_spu->i_original_picture_height = p_sys->p_display->i_height; - - if( p_sys->p_display->b_windowed ) - { - /* TODO: check that this actually works */ - p_spu->i_original_picture_width = p_sys->p_display->i_max_x - p_sys->p_display->i_x; - p_spu->i_original_picture_height = p_sys->p_display->i_max_y - p_sys->p_display->i_y; - p_spu->i_x += p_sys->p_display->i_x; - p_spu->i_y += p_sys->p_display->i_y; - } - } - return p_spu; } @@ -1656,7 +1658,7 @@ static int OpenEncoder( vlc_object_t *p_this ) encoder_sys_t *p_sys; vlc_value_t val; - if( ( p_enc->fmt_out.i_codec != VLC_FOURCC('d','v','b','s') ) && + if( ( p_enc->fmt_out.i_codec != VLC_CODEC_DVBS ) && !p_enc->b_force ) { return VLC_EGENERIC; @@ -1668,7 +1670,7 @@ static int OpenEncoder( vlc_object_t *p_this ) p_enc->p_sys = p_sys; p_enc->pf_encode_sub = Encode; - p_enc->fmt_out.i_codec = VLC_FOURCC('d','v','b','s'); + p_enc->fmt_out.i_codec = VLC_CODEC_DVBS; p_enc->fmt_out.subs.dvb.i_id = 1 << 16 | 1; config_ChainParse( p_enc, ENC_CFG_PREFIX, ppsz_enc_options, p_enc->p_cfg ); @@ -1689,8 +1691,8 @@ static int OpenEncoder( vlc_object_t *p_this ) return VLC_SUCCESS; } -/* FIXME: this routine is a hack to convert VLC_FOURCC('Y','U','V','A') - * into VLC_FOURCC('Y','U','V','P') +/* FIXME: this routine is a hack to convert VLC_CODEC_YUVA + * into VLC_CODEC_YUVP */ static subpicture_t *YuvaYuvp( subpicture_t *p_subpic ) { @@ -1709,17 +1711,17 @@ static subpicture_t *YuvaYuvp( subpicture_t *p_subpic ) #else int *pi_delta; #endif - int i_pixels = p_region->picture.p[0].i_visible_lines - * p_region->picture.p[0].i_pitch; - int i_iterator = p_region->picture.p[0].i_visible_lines * 3 / 4 - * p_region->picture.p[0].i_pitch - + p_region->picture.p[0].i_pitch * 1 / 3; + int i_pixels = p_region->p_picture->p[0].i_visible_lines + * p_region->p_picture->p[0].i_pitch; + int i_iterator = p_region->p_picture->p[0].i_visible_lines * 3 / 4 + * p_region->p_picture->p[0].i_pitch + + p_region->p_picture->p[0].i_pitch * 1 / 3; int i_tolerance = 0; #ifdef DEBUG_DVBSUB msg_Dbg( p_enc, "YuvaYuvp: i_pixels=%d, i_iterator=%d", i_pixels, i_iterator ); #endif - p_fmt->i_chroma = VLC_FOURCC('Y','U','V','P'); + p_fmt->i_chroma = VLC_CODEC_YUVP; p_fmt->p_palette = (video_palette_t *) malloc( sizeof( video_palette_t ) ); if( !p_fmt->p_palette ) break; p_fmt->p_palette->i_entries = 0; @@ -1753,10 +1755,10 @@ static subpicture_t *YuvaYuvp( subpicture_t *p_subpic ) for( i = 0; i < i_pixels ; ) { uint8_t y, u, v, a; - y = p_region->picture.p[0].p_pixels[i]; - u = p_region->picture.p[1].p_pixels[i]; - v = p_region->picture.p[2].p_pixels[i]; - a = p_region->picture.p[3].p_pixels[i]; + y = p_region->p_picture->p[0].p_pixels[i]; + u = p_region->p_picture->p[1].p_pixels[i]; + v = p_region->p_picture->p[2].p_pixels[i]; + a = p_region->p_picture->p[3].p_pixels[i]; for( j = 0; j < p_fmt->p_palette->i_entries; j++ ) { if( abs((int)p_fmt->p_palette->palette[j][0] - (int)y) <= i_tolerance && @@ -1798,29 +1800,29 @@ static subpicture_t *YuvaYuvp( subpicture_t *p_subpic ) #endif #ifndef RANDOM_DITHERING - pi_delta = malloc( ( p_region->picture.p[0].i_pitch + 1 ) + pi_delta = malloc( ( p_region->p_picture->p[0].i_pitch + 1 ) * sizeof(int) * 4 ); - for( i = 0; i < (p_region->picture.p[0].i_pitch + 1) * 4 ; i++ ) + for( i = 0; i < (p_region->p_picture->p[0].i_pitch + 1) * 4 ; i++ ) { pi_delta[ i ] = 0; } #endif /* Fill image with our new colours */ - for( p = 0; p < p_region->picture.p[0].i_visible_lines ; p++ ) + for( p = 0; p < p_region->p_picture->p[0].i_visible_lines ; p++ ) { int i_ydelta = 0, i_udelta = 0, i_vdelta = 0, i_adelta = 0; - for( n = 0; n < p_region->picture.p[0].i_pitch ; n++ ) + for( n = 0; n < p_region->p_picture->p[0].i_pitch ; n++ ) { - int i_offset = p * p_region->picture.p[0].i_pitch + n; + int i_offset = p * p_region->p_picture->p[0].i_pitch + n; int y, u, v, a; int i_mindist, i_best; - y = (int)p_region->picture.p[0].p_pixels[i_offset]; - u = (int)p_region->picture.p[1].p_pixels[i_offset]; - v = (int)p_region->picture.p[2].p_pixels[i_offset]; - a = (int)p_region->picture.p[3].p_pixels[i_offset]; + y = (int)p_region->p_picture->p[0].p_pixels[i_offset]; + u = (int)p_region->p_picture->p[1].p_pixels[i_offset]; + v = (int)p_region->p_picture->p[2].p_pixels[i_offset]; + a = (int)p_region->p_picture->p[3].p_pixels[i_offset]; /* Add dithering compensation */ #ifdef RANDOM_DITHERING @@ -1853,7 +1855,7 @@ static subpicture_t *YuvaYuvp( subpicture_t *p_subpic ) } /* Set pixel to best color */ - p_region->picture.p[0].p_pixels[i_offset] = i_best; + p_region->p_picture->p[0].p_pixels[i_offset] = i_best; /* Update dithering state */ #ifdef RANDOM_DITHERING @@ -1906,11 +1908,11 @@ static block_t *Encode( encoder_t *p_enc, subpicture_t *p_subpic ) if( !p_subpic || !p_subpic->p_region ) return NULL; - /* FIXME: this is a hack to convert VLC_FOURCC('Y','U','V','A') into - * VLC_FOURCC('Y','U','V','P') + /* FIXME: this is a hack to convert VLC_CODEC_YUVA into + * VLC_CODEC_YUVP */ p_region = p_subpic->p_region; - if( p_region->fmt.i_chroma == VLC_FOURCC('Y','U','V','A') ) + if( p_region->fmt.i_chroma == VLC_CODEC_YUVA ) { p_temp = YuvaYuvp( p_subpic ); if( !p_temp ) @@ -1924,8 +1926,8 @@ static block_t *Encode( encoder_t *p_enc, subpicture_t *p_subpic ) /* Sanity check */ if( !p_region ) return NULL; - if( ( p_region->fmt.i_chroma != VLC_FOURCC('T','E','X','T') ) && - ( p_region->fmt.i_chroma != VLC_FOURCC('Y','U','V','P') ) ) + if( ( p_region->fmt.i_chroma != VLC_CODEC_TEXT ) && + ( p_region->fmt.i_chroma != VLC_CODEC_YUVP ) ) { char psz_fourcc[5]; memset( &psz_fourcc, 0, sizeof( psz_fourcc ) ); @@ -2094,8 +2096,8 @@ static void encode_page_composition( encoder_t *p_enc, bs_t *s, } else { - bs_write( s, 16, p_subpic->i_x + p_region->i_x ); - bs_write( s, 16, p_subpic->i_y + p_region->i_y ); + bs_write( s, 16, p_region->i_x ); + bs_write( s, 16, p_region->i_y ); } } } @@ -2110,7 +2112,7 @@ static void encode_clut( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic ) /* Sanity check */ if( !p_region ) return; - if( p_region->fmt.i_chroma == VLC_FOURCC('Y','U','V','P') ) + if( p_region->fmt.i_chroma == VLC_CODEC_YUVP ) { p_pal = p_region->fmt.p_palette; } @@ -2164,7 +2166,7 @@ static void encode_region_composition( encoder_t *p_enc, bs_t *s, { int i_entries = 4, i_depth = 0x1, i_bg = 0; bool b_text = - ( p_region->fmt.i_chroma == VLC_FOURCC('T','E','X','T') ); + ( p_region->fmt.i_chroma == VLC_CODEC_TEXT ); if( !b_text ) { @@ -2250,10 +2252,10 @@ static void encode_object( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic ) /* object coding method */ switch( p_region->fmt.i_chroma ) { - case VLC_FOURCC( 'Y','U','V','P' ): + case VLC_CODEC_YUVP: bs_write( s, 2, 0 ); break; - case VLC_FOURCC( 'T','E','X','T' ): + case VLC_CODEC_TEXT: bs_write( s, 2, 1 ); break; default: @@ -2264,7 +2266,7 @@ static void encode_object( encoder_t *p_enc, bs_t *s, subpicture_t *p_subpic ) bs_write( s, 1, 0 ); /* non modifying color flag */ bs_write( s, 1, 0 ); /* Reserved */ - if( p_region->fmt.i_chroma == VLC_FOURCC( 'T','E','X','T' ) ) + if( p_region->fmt.i_chroma == VLC_CODEC_TEXT ) { int i_size, i; @@ -2323,7 +2325,7 @@ static void encode_pixel_data( encoder_t *p_enc, bs_t *s, unsigned int i_line; /* Sanity check */ - if( p_region->fmt.i_chroma != VLC_FOURCC('Y','U','V','P') ) return; + if( p_region->fmt.i_chroma != VLC_CODEC_YUVP ) return; /* Encode line by line */ for( i_line = !b_top; i_line < p_region->fmt.i_visible_height; @@ -2363,8 +2365,8 @@ static void encode_pixel_line_2bp( bs_t *s, subpicture_region_t *p_region, int i_line ) { unsigned int i, i_length = 0; - int i_pitch = p_region->picture.p->i_pitch; - uint8_t *p_data = &p_region->picture.p->p_pixels[ i_pitch * i_line ]; + int i_pitch = p_region->p_picture->p->i_pitch; + uint8_t *p_data = &p_region->p_picture->p->p_pixels[ i_pitch * i_line ]; int i_last_pixel = p_data[0]; for( i = 0; i <= p_region->fmt.i_visible_width; i++ ) @@ -2454,8 +2456,8 @@ static void encode_pixel_line_4bp( bs_t *s, subpicture_region_t *p_region, int i_line ) { unsigned int i, i_length = 0; - int i_pitch = p_region->picture.p->i_pitch; - uint8_t *p_data = &p_region->picture.p->p_pixels[ i_pitch * i_line ]; + int i_pitch = p_region->p_picture->p->i_pitch; + uint8_t *p_data = &p_region->p_picture->p->p_pixels[ i_pitch * i_line ]; int i_last_pixel = p_data[0]; for( i = 0; i <= p_region->fmt.i_visible_width; i++ ) @@ -2552,8 +2554,8 @@ static void encode_pixel_line_8bp( bs_t *s, subpicture_region_t *p_region, int i_line ) { unsigned int i, i_length = 0; - int i_pitch = p_region->picture.p->i_pitch; - uint8_t *p_data = &p_region->picture.p->p_pixels[ i_pitch * i_line ]; + int i_pitch = p_region->p_picture->p->i_pitch; + uint8_t *p_data = &p_region->p_picture->p->p_pixels[ i_pitch * i_line ]; int i_last_pixel = p_data[0]; for( i = 0; i <= p_region->fmt.i_visible_width; i++ )