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1076 lines
38 KiB
1076 lines
38 KiB
/*****************************************************************************
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* quartztext.c : Put text on the video, using Mac OS X Quartz Engine
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*****************************************************************************
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* Copyright (C) 2007, 2009 the VideoLAN team
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* $Id$
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*
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* Authors: Bernie Purcell <bitmap@videolan.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_osd.h>
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#include <vlc_stream.h>
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#include <vlc_xml.h>
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#include <vlc_input.h>
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// Fix ourselves ColorSync headers that gets included in ApplicationServices.
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#define DisposeCMProfileIterateUPP(a) DisposeCMProfileIterateUPP(CMProfileIterateUPP userUPP __attribute__((unused)))
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#define DisposeCMMIterateUPP(a) DisposeCMMIterateUPP(CMProfileIterateUPP userUPP __attribute__((unused)))
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#define __MACHINEEXCEPTIONS__
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#include <ApplicationServices/ApplicationServices.h>
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#define DEFAULT_FONT "Arial Black"
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#define DEFAULT_FONT_COLOR 0xffffff
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#define DEFAULT_REL_FONT_SIZE 16
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#define VERTICAL_MARGIN 3
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#define HORIZONTAL_MARGIN 10
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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 LoadFontsFromAttachments( filter_t *p_filter );
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static int RenderText( filter_t *, subpicture_region_t *,
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subpicture_region_t * );
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static int RenderHtml( filter_t *, subpicture_region_t *,
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subpicture_region_t * );
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static int GetFontSize( filter_t *p_filter );
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static int RenderYUVA( filter_t *p_filter, subpicture_region_t *p_region,
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CFMutableAttributedStringRef p_attrString );
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static void setFontAttibutes( char *psz_fontname, int i_font_size, uint32_t i_font_color,
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bool b_bold, bool b_italic, bool b_underline,
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CFRange p_range, CFMutableAttributedStringRef p_attrString );
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//////////////////////////////////////////////////////////////////////////////
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// Module descriptor
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//////////////////////////////////////////////////////////////////////////////
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// The preferred way to set font style information is for it to come from the
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// subtitle file, and for it to be rendered with RenderHtml instead of
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// RenderText.
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#define FONT_TEXT N_("Font")
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#define FONT_LONGTEXT N_("Name for the font you want to use")
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#define FONTSIZER_TEXT N_("Relative font size")
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#define FONTSIZER_LONGTEXT N_("This is the relative default size of the " \
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"fonts that will be rendered on the video. If absolute font size is set, "\
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"relative size will be overridden." )
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#define COLOR_TEXT N_("Text default color")
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#define COLOR_LONGTEXT N_("The color of the text that will be rendered on "\
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"the video. This must be an hexadecimal (like HTML colors). The first two "\
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"chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
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" #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )
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static const int pi_color_values[] = {
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0x00000000, 0x00808080, 0x00C0C0C0, 0x00FFFFFF, 0x00800000,
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0x00FF0000, 0x00FF00FF, 0x00FFFF00, 0x00808000, 0x00008000, 0x00008080,
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0x0000FF00, 0x00800080, 0x00000080, 0x000000FF, 0x0000FFFF };
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static const char *const ppsz_color_descriptions[] = {
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N_("Black"), N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"),
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N_("Red"), N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"), N_("Teal"),
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N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"), N_("Aqua") };
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static const int pi_sizes[] = { 20, 18, 16, 12, 6 };
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static const char *const ppsz_sizes_text[] = {
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N_("Smaller"), N_("Small"), N_("Normal"), N_("Large"), N_("Larger") };
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vlc_module_begin ()
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set_shortname( N_("Text renderer for Mac"))
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set_description( N_("CoreText font renderer") )
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set_category( CAT_VIDEO )
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set_subcategory( SUBCAT_VIDEO_SUBPIC )
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add_string( "quartztext-font", DEFAULT_FONT, FONT_TEXT, FONT_LONGTEXT,
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false )
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add_integer( "quartztext-rel-fontsize", DEFAULT_REL_FONT_SIZE, NULL, FONTSIZER_TEXT,
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FONTSIZER_LONGTEXT, false )
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change_integer_list( pi_sizes, ppsz_sizes_text )
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add_integer( "quartztext-color", 0x00FFFFFF, NULL, COLOR_TEXT,
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COLOR_LONGTEXT, false )
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change_integer_list( pi_color_values, ppsz_color_descriptions )
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set_capability( "text renderer", 150 )
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add_shortcut( "text" )
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set_callbacks( Create, Destroy )
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vlc_module_end ()
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typedef struct font_stack_t font_stack_t;
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struct font_stack_t
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{
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char *psz_name;
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int i_size;
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uint32_t i_color; // ARGB
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font_stack_t *p_next;
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};
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typedef struct
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{
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int i_font_size;
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uint32_t i_font_color; /* ARGB */
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bool b_italic;
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bool b_bold;
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bool b_underline;
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char *psz_fontname;
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} ft_style_t;
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typedef struct offscreen_bitmap_t offscreen_bitmap_t;
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struct offscreen_bitmap_t
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{
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uint8_t *p_data;
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int i_bitsPerChannel;
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int i_bitsPerPixel;
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int i_bytesPerPixel;
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int i_bytesPerRow;
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};
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//////////////////////////////////////////////////////////////////////////////
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// filter_sys_t: quartztext local data
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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 freetype specific properties of an output thread.
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//////////////////////////////////////////////////////////////////////////////
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struct filter_sys_t
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{
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char *psz_font_name;
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uint8_t i_font_opacity;
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int i_font_color;
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int i_font_size;
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ATSFontContainerRef *p_fonts;
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int i_fonts;
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};
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//////////////////////////////////////////////////////////////////////////////
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// Create: allocates osd-text video thread output method
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//////////////////////////////////////////////////////////////////////////////
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// This function allocates and initializes a Clone 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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filter_t *p_filter = (filter_t *)p_this;
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filter_sys_t *p_sys;
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// Allocate structure
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p_filter->p_sys = p_sys = malloc( sizeof( filter_sys_t ) );
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if( !p_sys )
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return VLC_ENOMEM;
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p_sys->psz_font_name = var_CreateGetString( p_this, "quartztext-font" );
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p_sys->i_font_opacity = 255;
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p_sys->i_font_color = __MAX( __MIN( var_CreateGetInteger( p_this, "quartztext-color" ) , 0xFFFFFF ), 0 );
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p_sys->i_font_size = GetFontSize( p_filter );
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p_filter->pf_render_text = RenderText;
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p_filter->pf_render_html = RenderHtml;
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p_sys->p_fonts = NULL;
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p_sys->i_fonts = 0;
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LoadFontsFromAttachments( p_filter );
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return VLC_SUCCESS;
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}
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//////////////////////////////////////////////////////////////////////////////
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// Destroy: destroy Clone video thread output method
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//////////////////////////////////////////////////////////////////////////////
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// Clean up all data and library connections
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//////////////////////////////////////////////////////////////////////////////
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static void Destroy( vlc_object_t *p_this )
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{
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filter_t *p_filter = (filter_t *)p_this;
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filter_sys_t *p_sys = p_filter->p_sys;
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if( p_sys->p_fonts )
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{
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int k;
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for( k = 0; k < p_sys->i_fonts; k++ )
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{
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ATSFontDeactivate( p_sys->p_fonts[k], NULL, kATSOptionFlagsDefault );
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}
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free( p_sys->p_fonts );
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}
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free( p_sys->psz_font_name );
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free( p_sys );
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}
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//////////////////////////////////////////////////////////////////////////////
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// Make any TTF/OTF fonts present in the attachments of the media file
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// available to the Quartz engine for text rendering
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//////////////////////////////////////////////////////////////////////////////
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static int LoadFontsFromAttachments( filter_t *p_filter )
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{
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filter_sys_t *p_sys = p_filter->p_sys;
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input_attachment_t **pp_attachments;
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int i_attachments_cnt;
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if( filter_GetInputAttachments( p_filter, &pp_attachments, &i_attachments_cnt ) )
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return VLC_EGENERIC;
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p_sys->i_fonts = 0;
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p_sys->p_fonts = malloc( i_attachments_cnt * sizeof( ATSFontContainerRef ) );
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if(! p_sys->p_fonts )
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return VLC_ENOMEM;
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for( int k = 0; k < i_attachments_cnt; k++ )
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{
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input_attachment_t *p_attach = pp_attachments[k];
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if( ( !strcmp( p_attach->psz_mime, "application/x-truetype-font" ) || // TTF
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!strcmp( p_attach->psz_mime, "application/x-font-otf" ) ) && // OTF
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p_attach->i_data > 0 && p_attach->p_data )
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{
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ATSFontContainerRef container;
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if( noErr == ATSFontActivateFromMemory( p_attach->p_data,
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p_attach->i_data,
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kATSFontContextLocal,
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kATSFontFormatUnspecified,
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NULL,
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kATSOptionFlagsDefault,
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&container ))
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{
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p_sys->p_fonts[ p_sys->i_fonts++ ] = container;
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}
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}
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vlc_input_attachment_Delete( p_attach );
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}
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free( pp_attachments );
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return VLC_SUCCESS;
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}
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static char *EliminateCRLF( char *psz_string )
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{
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char *p;
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char *q;
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for( p = psz_string; p && *p; p++ )
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{
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if( ( *p == '\r' ) && ( *(p+1) == '\n' ) )
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{
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for( q = p + 1; *q; q++ )
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*( q - 1 ) = *q;
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*( q - 1 ) = '\0';
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}
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}
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return psz_string;
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}
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// Renders a text subpicture region into another one.
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// It is used as pf_add_string callback in the vout method by this module
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static int RenderText( filter_t *p_filter, subpicture_region_t *p_region_out,
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subpicture_region_t *p_region_in )
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{
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filter_sys_t *p_sys = p_filter->p_sys;
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char *psz_string;
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int i_font_alpha, i_font_size;
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uint32_t i_font_color;
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bool b_bold, b_uline, b_italic;
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vlc_value_t val;
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int i_scale = 1000;
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b_bold = b_uline = b_italic = FALSE;
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p_sys->i_font_size = GetFontSize( p_filter );
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// Sanity check
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if( !p_region_in || !p_region_out ) return VLC_EGENERIC;
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psz_string = p_region_in->psz_text;
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if( !psz_string || !*psz_string ) return VLC_EGENERIC;
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if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
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i_scale = val.i_int;
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if( p_region_in->p_style )
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{
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i_font_color = __MAX( __MIN( p_region_in->p_style->i_font_color, 0xFFFFFF ), 0 );
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i_font_alpha = __MAX( __MIN( p_region_in->p_style->i_font_alpha, 255 ), 0 );
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i_font_size = __MAX( __MIN( p_region_in->p_style->i_font_size, 255 ), 0 ) * i_scale / 1000;
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if( p_region_in->p_style->i_style_flags )
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{
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if( p_region_in->p_style->i_style_flags & STYLE_BOLD )
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b_bold = TRUE;
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if( p_region_in->p_style->i_style_flags & STYLE_ITALIC )
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b_italic = TRUE;
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if( p_region_in->p_style->i_style_flags & STYLE_UNDERLINE )
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b_uline = TRUE;
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}
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}
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else
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{
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i_font_color = p_sys->i_font_color;
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i_font_alpha = 255 - p_sys->i_font_opacity;
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i_font_size = p_sys->i_font_size;
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}
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if( !i_font_alpha ) i_font_alpha = 255 - p_sys->i_font_opacity;
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if( i_font_size <= 0 )
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{
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msg_Warn( p_filter, "invalid fontsize, using 12" );
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if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
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i_font_size = 12 * val.i_int / 1000;
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else
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i_font_size = 12;
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}
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p_region_out->i_x = p_region_in->i_x;
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p_region_out->i_y = p_region_in->i_y;
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CFMutableAttributedStringRef p_attrString = CFAttributedStringCreateMutable(kCFAllocatorDefault, 0);
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|
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if( p_attrString )
|
|
{
|
|
CFStringRef p_cfString;
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int len;
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EliminateCRLF( psz_string);
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p_cfString = CFStringCreateWithCString( NULL, psz_string, kCFStringEncodingUTF8 );
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CFAttributedStringReplaceString( p_attrString, CFRangeMake(0, 0), p_cfString );
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CFRelease( p_cfString );
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len = CFAttributedStringGetLength( p_attrString );
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setFontAttibutes( p_sys->psz_font_name, i_font_size, i_font_color, b_bold, b_italic, b_uline,
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CFRangeMake( 0, len ), p_attrString);
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RenderYUVA( p_filter, p_region_out, p_attrString );
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CFRelease( p_attrString );
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}
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return VLC_SUCCESS;
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}
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static int PushFont( font_stack_t **p_font, const char *psz_name, int i_size,
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uint32_t i_color )
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{
|
|
font_stack_t *p_new;
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|
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if( !p_font )
|
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return VLC_EGENERIC;
|
|
|
|
p_new = malloc( sizeof( font_stack_t ) );
|
|
if( ! p_new )
|
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return VLC_ENOMEM;
|
|
|
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p_new->p_next = NULL;
|
|
|
|
if( psz_name )
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p_new->psz_name = strdup( psz_name );
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else
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p_new->psz_name = NULL;
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p_new->i_size = i_size;
|
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p_new->i_color = i_color;
|
|
|
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if( !*p_font )
|
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{
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|
*p_font = p_new;
|
|
}
|
|
else
|
|
{
|
|
font_stack_t *p_last;
|
|
|
|
for( p_last = *p_font;
|
|
p_last->p_next;
|
|
p_last = p_last->p_next )
|
|
;
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|
|
|
p_last->p_next = p_new;
|
|
}
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
static int PopFont( font_stack_t **p_font )
|
|
{
|
|
font_stack_t *p_last, *p_next_to_last;
|
|
|
|
if( !p_font || !*p_font )
|
|
return VLC_EGENERIC;
|
|
|
|
p_next_to_last = NULL;
|
|
for( p_last = *p_font;
|
|
p_last->p_next;
|
|
p_last = p_last->p_next )
|
|
{
|
|
p_next_to_last = p_last;
|
|
}
|
|
|
|
if( p_next_to_last )
|
|
p_next_to_last->p_next = NULL;
|
|
else
|
|
*p_font = NULL;
|
|
|
|
free( p_last->psz_name );
|
|
free( p_last );
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
static int PeekFont( font_stack_t **p_font, char **psz_name, int *i_size,
|
|
uint32_t *i_color )
|
|
{
|
|
font_stack_t *p_last;
|
|
|
|
if( !p_font || !*p_font )
|
|
return VLC_EGENERIC;
|
|
|
|
for( p_last=*p_font;
|
|
p_last->p_next;
|
|
p_last=p_last->p_next )
|
|
;
|
|
|
|
*psz_name = p_last->psz_name;
|
|
*i_size = p_last->i_size;
|
|
*i_color = p_last->i_color;
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|
|
static int HandleFontAttributes( xml_reader_t *p_xml_reader,
|
|
font_stack_t **p_fonts, int i_scale )
|
|
{
|
|
int rv;
|
|
char *psz_fontname = NULL;
|
|
uint32_t i_font_color = 0xffffff;
|
|
int i_font_alpha = 0;
|
|
int i_font_size = 24;
|
|
|
|
// Default all attributes to the top font in the stack -- in case not
|
|
// all attributes are specified in the sub-font
|
|
if( VLC_SUCCESS == PeekFont( p_fonts,
|
|
&psz_fontname,
|
|
&i_font_size,
|
|
&i_font_color ))
|
|
{
|
|
psz_fontname = strdup( psz_fontname );
|
|
i_font_size = i_font_size * 1000 / i_scale;
|
|
}
|
|
i_font_alpha = (i_font_color >> 24) & 0xff;
|
|
i_font_color &= 0x00ffffff;
|
|
|
|
while ( xml_ReaderNextAttr( p_xml_reader ) == VLC_SUCCESS )
|
|
{
|
|
char *psz_name = xml_ReaderName( p_xml_reader );
|
|
char *psz_value = xml_ReaderValue( p_xml_reader );
|
|
|
|
if( psz_name && psz_value )
|
|
{
|
|
if( !strcasecmp( "face", psz_name ) )
|
|
{
|
|
free( psz_fontname );
|
|
psz_fontname = strdup( psz_value );
|
|
}
|
|
else if( !strcasecmp( "size", psz_name ) )
|
|
{
|
|
if( ( *psz_value == '+' ) || ( *psz_value == '-' ) )
|
|
{
|
|
int i_value = atoi( psz_value );
|
|
|
|
if( ( i_value >= -5 ) && ( i_value <= 5 ) )
|
|
i_font_size += ( i_value * i_font_size ) / 10;
|
|
else if( i_value < -5 )
|
|
i_font_size = - i_value;
|
|
else if( i_value > 5 )
|
|
i_font_size = i_value;
|
|
}
|
|
else
|
|
i_font_size = atoi( psz_value );
|
|
}
|
|
else if( !strcasecmp( "color", psz_name ) &&
|
|
( psz_value[0] == '#' ) )
|
|
{
|
|
i_font_color = strtol( psz_value + 1, NULL, 16 );
|
|
i_font_color &= 0x00ffffff;
|
|
}
|
|
else if( !strcasecmp( "alpha", psz_name ) &&
|
|
( psz_value[0] == '#' ) )
|
|
{
|
|
i_font_alpha = strtol( psz_value + 1, NULL, 16 );
|
|
i_font_alpha &= 0xff;
|
|
}
|
|
free( psz_name );
|
|
free( psz_value );
|
|
}
|
|
}
|
|
rv = PushFont( p_fonts,
|
|
psz_fontname,
|
|
i_font_size * i_scale / 1000,
|
|
(i_font_color & 0xffffff) | ((i_font_alpha & 0xff) << 24) );
|
|
|
|
free( psz_fontname );
|
|
|
|
return rv;
|
|
}
|
|
|
|
static void setFontAttibutes( char *psz_fontname, int i_font_size, uint32_t i_font_color,
|
|
bool b_bold, bool b_italic, bool b_underline,
|
|
CFRange p_range, CFMutableAttributedStringRef p_attrString )
|
|
{
|
|
CFStringRef p_cfString;
|
|
CTFontRef p_font;
|
|
|
|
// Handle font name and size
|
|
p_cfString = CFStringCreateWithCString( NULL,
|
|
psz_fontname,
|
|
kCFStringEncodingUTF8 );
|
|
p_font = CTFontCreateWithName( p_cfString,
|
|
(float)i_font_size,
|
|
NULL );
|
|
CFRelease( p_cfString );
|
|
CFAttributedStringSetAttribute( p_attrString,
|
|
p_range,
|
|
kCTFontAttributeName,
|
|
p_font );
|
|
CFRelease( p_font );
|
|
|
|
// Handle Underline
|
|
SInt32 _uline;
|
|
if( b_underline )
|
|
_uline = kCTUnderlineStyleSingle;
|
|
else
|
|
_uline = kCTUnderlineStyleNone;
|
|
|
|
CFNumberRef underline = CFNumberCreate(NULL, kCFNumberSInt32Type, &_uline);
|
|
CFAttributedStringSetAttribute( p_attrString,
|
|
p_range,
|
|
kCTUnderlineStyleAttributeName,
|
|
underline );
|
|
CFRelease( underline );
|
|
|
|
// Handle Bold
|
|
float _weight;
|
|
if( b_bold )
|
|
_weight = 0.5;
|
|
else
|
|
_weight = 0.0;
|
|
|
|
CFNumberRef weight = CFNumberCreate(NULL, kCFNumberFloatType, &_weight);
|
|
CFAttributedStringSetAttribute( p_attrString,
|
|
p_range,
|
|
kCTFontWeightTrait,
|
|
weight );
|
|
CFRelease( weight );
|
|
|
|
// Handle Italic
|
|
float _slant;
|
|
if( b_italic )
|
|
_slant = 1.0;
|
|
else
|
|
_slant = 0.0;
|
|
|
|
CFNumberRef slant = CFNumberCreate(NULL, kCFNumberFloatType, &_slant);
|
|
CFAttributedStringSetAttribute( p_attrString,
|
|
p_range,
|
|
kCTFontSlantTrait,
|
|
slant );
|
|
CFRelease( slant );
|
|
|
|
// Handle foreground colour
|
|
CGColorSpaceRef rgbColorSpace = CGColorSpaceCreateDeviceRGB();
|
|
CGFloat components[] = { (float)((i_font_color & 0x00ff0000) >> 16) / 255.0,
|
|
(float)((i_font_color & 0x0000ff00) >> 8) / 255.0,
|
|
(float)((i_font_color & 0x000000ff) ) / 255.0,
|
|
(float)(255-((i_font_color & 0xff000000) >> 24)) / 255.0 };
|
|
CGColorRef fg_text = CGColorCreate(rgbColorSpace, components);
|
|
CGColorSpaceRelease(rgbColorSpace);
|
|
|
|
CFAttributedStringSetAttribute( p_attrString,
|
|
p_range,
|
|
kCTForegroundColorAttributeName,
|
|
fg_text );
|
|
CFRelease( fg_text );
|
|
|
|
}
|
|
|
|
static void GetAttrStrFromFontStack( font_stack_t **p_fonts,
|
|
bool b_bold, bool b_italic, bool b_uline,
|
|
CFRange p_range, CFMutableAttributedStringRef p_attrString )
|
|
{
|
|
char *psz_fontname = NULL;
|
|
int i_font_size = 0;
|
|
uint32_t i_font_color = 0;
|
|
|
|
if( VLC_SUCCESS == PeekFont( p_fonts, &psz_fontname, &i_font_size,
|
|
&i_font_color ))
|
|
{
|
|
setFontAttibutes( psz_fontname,
|
|
i_font_size,
|
|
i_font_color,
|
|
b_bold, b_italic, b_uline,
|
|
p_range,
|
|
p_attrString );
|
|
}
|
|
}
|
|
|
|
static int ProcessNodes( filter_t *p_filter,
|
|
xml_reader_t *p_xml_reader,
|
|
text_style_t *p_font_style,
|
|
CFMutableAttributedStringRef p_attrString )
|
|
{
|
|
int rv = VLC_SUCCESS;
|
|
filter_sys_t *p_sys = p_filter->p_sys;
|
|
font_stack_t *p_fonts = NULL;
|
|
vlc_value_t val;
|
|
int i_scale = 1000;
|
|
|
|
char *psz_node = NULL;
|
|
|
|
bool b_italic = false;
|
|
bool b_bold = false;
|
|
bool b_uline = false;
|
|
|
|
if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
|
|
i_scale = val.i_int;
|
|
|
|
if( p_font_style )
|
|
{
|
|
rv = PushFont( &p_fonts,
|
|
p_font_style->psz_fontname,
|
|
p_font_style->i_font_size * i_scale / 1000,
|
|
(p_font_style->i_font_color & 0xffffff) |
|
|
((p_font_style->i_font_alpha & 0xff) << 24) );
|
|
|
|
if( p_font_style->i_style_flags & STYLE_BOLD )
|
|
b_bold = true;
|
|
if( p_font_style->i_style_flags & STYLE_ITALIC )
|
|
b_italic = true;
|
|
if( p_font_style->i_style_flags & STYLE_UNDERLINE )
|
|
b_uline = true;
|
|
}
|
|
else
|
|
{
|
|
rv = PushFont( &p_fonts,
|
|
p_sys->psz_font_name,
|
|
p_sys->i_font_size,
|
|
p_sys->i_font_color );
|
|
}
|
|
if( rv != VLC_SUCCESS )
|
|
return rv;
|
|
|
|
while ( ( xml_ReaderRead( p_xml_reader ) == 1 ) )
|
|
{
|
|
switch ( xml_ReaderNodeType( p_xml_reader ) )
|
|
{
|
|
case XML_READER_NONE:
|
|
break;
|
|
case XML_READER_ENDELEM:
|
|
psz_node = xml_ReaderName( p_xml_reader );
|
|
|
|
if( psz_node )
|
|
{
|
|
if( !strcasecmp( "font", psz_node ) )
|
|
PopFont( &p_fonts );
|
|
else if( !strcasecmp( "b", psz_node ) )
|
|
b_bold = false;
|
|
else if( !strcasecmp( "i", psz_node ) )
|
|
b_italic = false;
|
|
else if( !strcasecmp( "u", psz_node ) )
|
|
b_uline = false;
|
|
|
|
free( psz_node );
|
|
}
|
|
break;
|
|
case XML_READER_STARTELEM:
|
|
psz_node = xml_ReaderName( p_xml_reader );
|
|
if( psz_node )
|
|
{
|
|
if( !strcasecmp( "font", psz_node ) )
|
|
rv = HandleFontAttributes( p_xml_reader, &p_fonts, i_scale );
|
|
else if( !strcasecmp( "b", psz_node ) )
|
|
b_bold = true;
|
|
else if( !strcasecmp( "i", psz_node ) )
|
|
b_italic = true;
|
|
else if( !strcasecmp( "u", psz_node ) )
|
|
b_uline = true;
|
|
else if( !strcasecmp( "br", psz_node ) )
|
|
{
|
|
CFMutableAttributedStringRef p_attrnode = CFAttributedStringCreateMutable(kCFAllocatorDefault, 0);
|
|
CFAttributedStringReplaceString( p_attrnode, CFRangeMake(0, 0), CFSTR("\n") );
|
|
|
|
GetAttrStrFromFontStack( &p_fonts, b_bold, b_italic, b_uline,
|
|
CFRangeMake( 0, 1 ),
|
|
p_attrnode );
|
|
CFAttributedStringReplaceAttributedString( p_attrString,
|
|
CFRangeMake(CFAttributedStringGetLength(p_attrString), 0),
|
|
p_attrnode);
|
|
CFRelease( p_attrnode );
|
|
}
|
|
free( psz_node );
|
|
}
|
|
break;
|
|
case XML_READER_TEXT:
|
|
psz_node = xml_ReaderValue( p_xml_reader );
|
|
if( psz_node )
|
|
{
|
|
CFStringRef p_cfString;
|
|
int len;
|
|
|
|
// Turn any multiple-whitespaces into single spaces
|
|
char *s = strpbrk( psz_node, "\t\r\n " );
|
|
while( s )
|
|
{
|
|
int i_whitespace = strspn( s, "\t\r\n " );
|
|
|
|
if( i_whitespace > 1 )
|
|
memmove( &s[1],
|
|
&s[i_whitespace],
|
|
strlen( s ) - i_whitespace + 1 );
|
|
*s++ = ' ';
|
|
|
|
s = strpbrk( s, "\t\r\n " );
|
|
}
|
|
|
|
|
|
CFMutableAttributedStringRef p_attrnode = CFAttributedStringCreateMutable(kCFAllocatorDefault, 0);
|
|
p_cfString = CFStringCreateWithCString( NULL, psz_node, kCFStringEncodingUTF8 );
|
|
CFAttributedStringReplaceString( p_attrnode, CFRangeMake(0, 0), p_cfString );
|
|
CFRelease( p_cfString );
|
|
len = CFAttributedStringGetLength( p_attrnode );
|
|
|
|
GetAttrStrFromFontStack( &p_fonts, b_bold, b_italic, b_uline,
|
|
CFRangeMake( 0, len ),
|
|
p_attrnode );
|
|
|
|
CFAttributedStringReplaceAttributedString( p_attrString,
|
|
CFRangeMake(CFAttributedStringGetLength(p_attrString), 0),
|
|
p_attrnode);
|
|
CFRelease( p_attrnode );
|
|
free( psz_node );
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
while( VLC_SUCCESS == PopFont( &p_fonts ) );
|
|
|
|
return rv;
|
|
}
|
|
|
|
static int RenderHtml( filter_t *p_filter, subpicture_region_t *p_region_out,
|
|
subpicture_region_t *p_region_in )
|
|
{
|
|
int rv = VLC_SUCCESS;
|
|
stream_t *p_sub = NULL;
|
|
xml_t *p_xml = NULL;
|
|
xml_reader_t *p_xml_reader = NULL;
|
|
|
|
if( !p_region_in || !p_region_in->psz_html )
|
|
return VLC_EGENERIC;
|
|
|
|
/* Reset the default fontsize in case screen metrics have changed */
|
|
p_filter->p_sys->i_font_size = GetFontSize( p_filter );
|
|
|
|
p_sub = stream_MemoryNew( VLC_OBJECT(p_filter),
|
|
(uint8_t *) p_region_in->psz_html,
|
|
strlen( p_region_in->psz_html ),
|
|
true );
|
|
if( p_sub )
|
|
{
|
|
p_xml = xml_Create( p_filter );
|
|
if( p_xml )
|
|
{
|
|
bool b_karaoke = false;
|
|
|
|
p_xml_reader = xml_ReaderCreate( p_xml, p_sub );
|
|
if( p_xml_reader )
|
|
{
|
|
/* Look for Root Node */
|
|
if( xml_ReaderRead( p_xml_reader ) == 1 )
|
|
{
|
|
char *psz_node = xml_ReaderName( p_xml_reader );
|
|
|
|
if( !strcasecmp( "karaoke", psz_node ) )
|
|
{
|
|
/* We're going to have to render the text a number
|
|
* of times to show the progress marker on the text.
|
|
*/
|
|
var_SetBool( p_filter, "text-rerender", true );
|
|
b_karaoke = true;
|
|
}
|
|
else if( !strcasecmp( "text", psz_node ) )
|
|
{
|
|
b_karaoke = false;
|
|
}
|
|
else
|
|
{
|
|
/* Only text and karaoke tags are supported */
|
|
xml_ReaderDelete( p_xml_reader );
|
|
p_xml_reader = NULL;
|
|
rv = VLC_EGENERIC;
|
|
}
|
|
|
|
free( psz_node );
|
|
}
|
|
}
|
|
|
|
if( p_xml_reader )
|
|
{
|
|
int i_len;
|
|
|
|
CFMutableAttributedStringRef p_attrString = CFAttributedStringCreateMutable(kCFAllocatorDefault, 0);
|
|
rv = ProcessNodes( p_filter, p_xml_reader,
|
|
p_region_in->p_style, p_attrString );
|
|
|
|
i_len = CFAttributedStringGetLength( p_attrString );
|
|
|
|
p_region_out->i_x = p_region_in->i_x;
|
|
p_region_out->i_y = p_region_in->i_y;
|
|
|
|
if(( rv == VLC_SUCCESS ) && ( i_len > 0 ))
|
|
{
|
|
RenderYUVA( p_filter, p_region_out, p_attrString );
|
|
}
|
|
CFRelease(p_attrString);
|
|
|
|
xml_ReaderDelete( p_xml_reader );
|
|
}
|
|
xml_Delete( p_xml );
|
|
}
|
|
stream_Delete( p_sub );
|
|
}
|
|
|
|
return rv;
|
|
}
|
|
|
|
static CGContextRef CreateOffScreenContext( int i_width, int i_height,
|
|
offscreen_bitmap_t **pp_memory, CGColorSpaceRef *pp_colorSpace )
|
|
{
|
|
offscreen_bitmap_t *p_bitmap;
|
|
CGContextRef p_context = NULL;
|
|
|
|
p_bitmap = (offscreen_bitmap_t *) malloc( sizeof( offscreen_bitmap_t ));
|
|
if( p_bitmap )
|
|
{
|
|
p_bitmap->i_bitsPerChannel = 8;
|
|
p_bitmap->i_bitsPerPixel = 4 * p_bitmap->i_bitsPerChannel; // A,R,G,B
|
|
p_bitmap->i_bytesPerPixel = p_bitmap->i_bitsPerPixel / 8;
|
|
p_bitmap->i_bytesPerRow = i_width * p_bitmap->i_bytesPerPixel;
|
|
|
|
p_bitmap->p_data = calloc( i_height, p_bitmap->i_bytesPerRow );
|
|
|
|
*pp_colorSpace = CGColorSpaceCreateWithName( kCGColorSpaceGenericRGB );
|
|
|
|
if( p_bitmap->p_data && *pp_colorSpace )
|
|
{
|
|
p_context = CGBitmapContextCreate( p_bitmap->p_data, i_width, i_height,
|
|
p_bitmap->i_bitsPerChannel, p_bitmap->i_bytesPerRow,
|
|
*pp_colorSpace, kCGImageAlphaPremultipliedFirst);
|
|
}
|
|
if( p_context )
|
|
{
|
|
if( CGContextSetAllowsAntialiasing != NULL )
|
|
{
|
|
CGContextSetAllowsAntialiasing( p_context, true );
|
|
}
|
|
}
|
|
*pp_memory = p_bitmap;
|
|
}
|
|
|
|
return p_context;
|
|
}
|
|
|
|
static offscreen_bitmap_t *Compose( int i_text_align,
|
|
CFMutableAttributedStringRef p_attrString,
|
|
unsigned i_width,
|
|
unsigned i_height,
|
|
unsigned *pi_textblock_height )
|
|
{
|
|
offscreen_bitmap_t *p_offScreen = NULL;
|
|
CGColorSpaceRef p_colorSpace = NULL;
|
|
CGContextRef p_context = NULL;
|
|
|
|
p_context = CreateOffScreenContext( i_width, i_height, &p_offScreen, &p_colorSpace );
|
|
|
|
*pi_textblock_height = 0;
|
|
if( p_context )
|
|
{
|
|
float horiz_flush;
|
|
|
|
CGContextSetTextMatrix( p_context, CGAffineTransformIdentity );
|
|
|
|
if( i_text_align == SUBPICTURE_ALIGN_RIGHT )
|
|
horiz_flush = 1.0;
|
|
else if( i_text_align != SUBPICTURE_ALIGN_LEFT )
|
|
horiz_flush = 0.5;
|
|
else
|
|
horiz_flush = 0.0;
|
|
|
|
// Create the framesetter with the attributed string.
|
|
CTFramesetterRef framesetter = CTFramesetterCreateWithAttributedString(p_attrString);
|
|
if( framesetter )
|
|
{
|
|
CTFrameRef frame;
|
|
CGMutablePathRef p_path = CGPathCreateMutable();
|
|
CGRect p_bounds = CGRectMake( (float)HORIZONTAL_MARGIN,
|
|
(float)VERTICAL_MARGIN,
|
|
(float)(i_width - HORIZONTAL_MARGIN*2),
|
|
(float)(i_height - VERTICAL_MARGIN *2));
|
|
CGPathAddRect( p_path, NULL, p_bounds );
|
|
|
|
// Create the frame and draw it into the graphics context
|
|
frame = CTFramesetterCreateFrame(framesetter, CFRangeMake(0, 0), p_path, NULL);
|
|
|
|
CGPathRelease(p_path);
|
|
|
|
// Set up black outlining of the text --
|
|
CGContextSetRGBStrokeColor( p_context, 0, 0, 0, 0.5 );
|
|
CGContextSetTextDrawingMode( p_context, kCGTextFillStroke );
|
|
|
|
if( frame != NULL )
|
|
{
|
|
CFArrayRef lines;
|
|
CGPoint penPosition;
|
|
|
|
lines = CTFrameGetLines( frame );
|
|
penPosition.y = i_height;
|
|
for (int i=0; i<CFArrayGetCount( lines ); i++)
|
|
{
|
|
CGFloat ascent, descent, leading;
|
|
|
|
CTLineRef line = (CTLineRef)CFArrayGetValueAtIndex(lines, i);
|
|
CTLineGetTypographicBounds(line, &ascent, &descent, &leading);
|
|
|
|
// Set the outlining for this line to be dependant on the size of the line -
|
|
// make it about 5% of the ascent, with a minimum at 1.0
|
|
float f_thickness = ascent * 0.05;
|
|
CGContextSetLineWidth( p_context, (( f_thickness > 1.0 ) ? 1.0 : f_thickness ));
|
|
|
|
double penOffset = CTLineGetPenOffsetForFlush(line, horiz_flush, (i_width - HORIZONTAL_MARGIN*2));
|
|
penPosition.x = HORIZONTAL_MARGIN + penOffset;
|
|
penPosition.y -= ascent;
|
|
CGContextSetTextPosition( p_context, penPosition.x, penPosition.y );
|
|
CTLineDraw( line, p_context );
|
|
penPosition.y -= descent + leading;
|
|
|
|
}
|
|
*pi_textblock_height = i_height - penPosition.y;
|
|
|
|
CFRelease(frame);
|
|
}
|
|
CFRelease(framesetter);
|
|
}
|
|
CGContextFlush( p_context );
|
|
CGContextRelease( p_context );
|
|
}
|
|
if( p_colorSpace ) CGColorSpaceRelease( p_colorSpace );
|
|
|
|
return p_offScreen;
|
|
}
|
|
|
|
static int GetFontSize( filter_t *p_filter )
|
|
{
|
|
return p_filter->fmt_out.video.i_height / DEFAULT_REL_FONT_SIZE;
|
|
}
|
|
|
|
static int RenderYUVA( filter_t *p_filter, subpicture_region_t *p_region,
|
|
CFMutableAttributedStringRef p_attrString )
|
|
{
|
|
offscreen_bitmap_t *p_offScreen = NULL;
|
|
unsigned i_textblock_height = 0;
|
|
|
|
unsigned i_width = p_filter->fmt_out.video.i_visible_width;
|
|
unsigned i_height = p_filter->fmt_out.video.i_visible_height;
|
|
unsigned i_text_align = p_region->i_align & 0x3;
|
|
|
|
if( !p_attrString )
|
|
{
|
|
msg_Err( p_filter, "Invalid argument to RenderYUVA" );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
p_offScreen = Compose( i_text_align, p_attrString,
|
|
i_width, i_height, &i_textblock_height );
|
|
|
|
if( !p_offScreen )
|
|
{
|
|
msg_Err( p_filter, "No offscreen buffer" );
|
|
return VLC_EGENERIC;
|
|
}
|
|
|
|
uint8_t *p_dst_y,*p_dst_u,*p_dst_v,*p_dst_a;
|
|
video_format_t fmt;
|
|
int i_offset;
|
|
unsigned x, y, i_pitch;
|
|
uint8_t i_y, i_u, i_v; // YUV values, derived from incoming RGB
|
|
|
|
// Create a new subpicture region
|
|
memset( &fmt, 0, sizeof(video_format_t) );
|
|
fmt.i_chroma = VLC_CODEC_YUVA;
|
|
fmt.i_width = fmt.i_visible_width = i_width;
|
|
fmt.i_height = fmt.i_visible_height = __MIN( i_height, i_textblock_height + VERTICAL_MARGIN * 2);
|
|
fmt.i_x_offset = fmt.i_y_offset = 0;
|
|
|
|
p_region->p_picture = picture_NewFromFormat( &fmt );
|
|
if( !p_region->p_picture )
|
|
return VLC_EGENERIC;
|
|
p_region->fmt = fmt;
|
|
|
|
p_dst_y = p_region->p_picture->Y_PIXELS;
|
|
p_dst_u = p_region->p_picture->U_PIXELS;
|
|
p_dst_v = p_region->p_picture->V_PIXELS;
|
|
p_dst_a = p_region->p_picture->A_PIXELS;
|
|
i_pitch = p_region->p_picture->A_PITCH;
|
|
|
|
i_offset = (i_height + VERTICAL_MARGIN < fmt.i_height) ? VERTICAL_MARGIN *i_pitch : 0 ;
|
|
for( y = 0; y < fmt.i_height; y++)
|
|
{
|
|
for( x = 0; x < fmt.i_width; x++)
|
|
{
|
|
int i_alpha = p_offScreen->p_data[ y * p_offScreen->i_bytesPerRow + x * p_offScreen->i_bytesPerPixel ];
|
|
int i_red = p_offScreen->p_data[ y * p_offScreen->i_bytesPerRow + x * p_offScreen->i_bytesPerPixel + 1 ];
|
|
int i_green = p_offScreen->p_data[ y * p_offScreen->i_bytesPerRow + x * p_offScreen->i_bytesPerPixel + 2 ];
|
|
int i_blue = p_offScreen->p_data[ y * p_offScreen->i_bytesPerRow + x * p_offScreen->i_bytesPerPixel + 3 ];
|
|
|
|
i_y = (uint8_t)__MIN(abs( 2104 * i_red + 4130 * i_green +
|
|
802 * i_blue + 4096 + 131072 ) >> 13, 235);
|
|
i_u = (uint8_t)__MIN(abs( -1214 * i_red + -2384 * i_green +
|
|
3598 * i_blue + 4096 + 1048576) >> 13, 240);
|
|
i_v = (uint8_t)__MIN(abs( 3598 * i_red + -3013 * i_green +
|
|
-585 * i_blue + 4096 + 1048576) >> 13, 240);
|
|
|
|
p_dst_y[ i_offset + x ] = i_y;
|
|
p_dst_u[ i_offset + x ] = i_u;
|
|
p_dst_v[ i_offset + x ] = i_v;
|
|
p_dst_a[ i_offset + x ] = i_alpha;
|
|
}
|
|
i_offset += i_pitch;
|
|
}
|
|
|
|
free( p_offScreen->p_data );
|
|
free( p_offScreen );
|
|
|
|
return VLC_SUCCESS;
|
|
}
|
|
|