/*****************************************************************************
* freetype.c : Put text on the video, using freetype2
*****************************************************************************
- * Copyright (C) 2002 - 2005 VideoLAN
+ * Copyright (C) 2002 - 2007 the VideoLAN team
* $Id$
*
- * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
+ * Authors: Sigmund Augdal Helberg <dnumgis@videolan.org>
* Gildas Bazin <gbazin@videolan.org>
+ * Bernie Purcell <bitmap@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
-#include <string.h>
-#ifdef HAVE_LINUX_LIMITS_H
-# include <linux/limits.h>
+#ifdef HAVE_CONFIG_H
+# include "config.h"
#endif
#include <vlc/vlc.h>
-#include <vlc/vout.h>
-#include "osd.h"
-#include "vlc_block.h"
-#include "vlc_filter.h"
+#include <vlc_vout.h>
+#include <vlc_osd.h>
+#include <vlc_block.h>
+#include <vlc_filter.h>
+#include <vlc_stream.h>
+#include <vlc_xml.h>
+#include <vlc_input.h>
#include <math.h>
-
-#ifdef HAVE_ERRNO_H
-# include <errno.h>
-#endif
+#include <errno.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
+#define FT_FLOOR(X) ((X & -64) >> 6)
+#define FT_CEIL(X) (((X + 63) & -64) >> 6)
+#define FT_MulFix(v, s) (((v)*(s))>>16)
-#ifdef SYS_DARWIN
+#ifdef __APPLE__
#define DEFAULT_FONT "/System/Library/Fonts/LucidaGrande.dfont"
+#define FC_DEFAULT_FONT "Lucida Grande"
#elif defined( SYS_BEOS )
#define DEFAULT_FONT "/boot/beos/etc/fonts/ttfonts/Swiss721.ttf"
+#define FC_DEFAULT_FONT "Swiss"
#elif defined( WIN32 )
#define DEFAULT_FONT "" /* Default font found at run-time */
+#define FC_DEFAULT_FONT "Arial"
#else
#define DEFAULT_FONT "/usr/share/fonts/truetype/freefont/FreeSerifBold.ttf"
+#define FC_DEFAULT_FONT "Serif Bold"
#endif
#if defined(HAVE_FRIBIDI)
#include <fribidi/fribidi.h>
#endif
+#ifdef HAVE_FONTCONFIG
+#include <fontconfig/fontconfig.h>
+#endif
+
typedef struct line_desc_t line_desc_t;
/*****************************************************************************
static int Create ( vlc_object_t * );
static void Destroy( vlc_object_t * );
+static int LoadFontsFromAttachments( filter_t *p_filter );
+
/* The RenderText call maps to pf_render_string, defined in vlc_filter.h */
-static subpicture_region_t *RenderText( filter_t *, subpicture_t *, subpicture_region_t* );//block_t *, int, int, int );
-static line_desc_t *NewLine( byte_t * );
+static int RenderText( filter_t *, subpicture_region_t *,
+ subpicture_region_t * );
+#ifdef HAVE_FONTCONFIG
+static int RenderHtml( filter_t *, subpicture_region_t *,
+ subpicture_region_t * );
+static char *FontConfig_Select( FcConfig *, const char *,
+ vlc_bool_t, vlc_bool_t, int * );
+static int CheckIfFontBuildComplete( filter_t *p_filter );
+#endif
+static line_desc_t *NewLine( int );
+
+static int GetFontSize( filter_t *p_filter );
+static int SetFontSize( filter_t *, int );
+static void YUVFromRGB( uint32_t i_argb,
+ uint8_t *pi_y, uint8_t *pi_u, uint8_t *pi_v );
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define FONT_TEXT N_("Font")
-#define FONT_LONGTEXT N_("Font filename")
+#define FONT_LONGTEXT N_("Filename for the font you want to use")
#define FONTSIZE_TEXT N_("Font size in pixels")
-#define FONTSIZE_LONGTEXT N_("The size of the fonts used by the osd module. " \
+#define FONTSIZE_LONGTEXT N_("This is the default size of the fonts " \
+ "that will be rendered on the video. " \
"If set to something different than 0 this option will override the " \
- "relative font size " )
-#define OPACITY_TEXT N_("Opacity, 0..255")
-#define OPACITY_LONGTEXT N_("The opacity (inverse of transparency) of overlay text. " \
- "1 = transparent, 255 = totally opaque. " )
-#define COLOR_TEXT N_("Text Default Color")
-#define COLOR_LONGTEXT N_("The color of overlay text. 1 byte for each color, hexadecimal." \
- "#000000 = all colors off, 0xFF0000 = just Red, 0xFFFFFF = all color on [White]" )
-#define FONTSIZER_TEXT N_("Font size")
-#define FONTSIZER_LONGTEXT N_("The size of the fonts used by the osd module" )
+ "relative font size." )
+#define OPACITY_TEXT N_("Opacity")
+#define OPACITY_LONGTEXT N_("The opacity (inverse of transparency) of the " \
+ "text that will be rendered on the video. 0 = transparent, " \
+ "255 = totally opaque. " )
+#define COLOR_TEXT N_("Text default color")
+#define COLOR_LONGTEXT N_("The color of the text that will be rendered on "\
+ "the video. This must be an hexadecimal (like HTML colors). The first two "\
+ "chars are for red, then green, then blue. #000000 = black, #FF0000 = red,"\
+ " #00FF00 = green, #FFFF00 = yellow (red + green), #FFFFFF = white" )
+#define FONTSIZER_TEXT N_("Relative font size")
+#define FONTSIZER_LONGTEXT N_("This is the relative default size of the " \
+ "fonts that will be rendered on the video. If absolute font size is set, "\
+ "relative size will be overriden." )
static int pi_sizes[] = { 20, 18, 16, 12, 6 };
-static char *ppsz_sizes_text[] = { N_("Smaller"), N_("Small"), N_("Normal"),
- N_("Large"), N_("Larger") };
-static int pi_color_values[] = { 0x00000000, 0x00808080, 0x00C0C0C0, 0x00FFFFFF, 0x00800000,
- 0x00FF0000, 0x00FF00FF, 0x00FFFF00, 0x00808000, 0x00008000, 0x00008080,
- 0x0000FF00, 0x00800080, 0x00000080, 0x000000FF, 0x0000FFFF};
-static char *ppsz_color_descriptions[] = { N_("Black"), N_("Gray"), N_("Silver"), N_("White"),
- N_("Maroon"), N_("Red"), N_("Fuchsia"), N_("Yellow"),
- N_("Olive"), N_("Green"), N_("Teal"), N_("Lime"), N_("Purple"),
- N_("Navy"), N_("Blue"), N_("Aqua") };
+static const char *ppsz_sizes_text[] = { N_("Smaller"), N_("Small"), N_("Normal"),
+ N_("Large"), N_("Larger") };
+#define YUVP_TEXT N_("Use YUVP renderer")
+#define YUVP_LONGTEXT N_("This renders the font using \"paletized YUV\". " \
+ "This option is only needed if you want to encode into DVB subtitles" )
+#define EFFECT_TEXT N_("Font Effect")
+#define EFFECT_LONGTEXT N_("It is possible to apply effects to the rendered " \
+"text to improve its readability." )
+
+#define EFFECT_BACKGROUND 1
+#define EFFECT_OUTLINE 2
+#define EFFECT_OUTLINE_FAT 3
+
+static int pi_effects[] = { 1, 2, 3 };
+static const char *ppsz_effects_text[] = { N_("Background"),N_("Outline"),
+ N_("Fat Outline") };
+static int pi_color_values[] = {
+ 0x00000000, 0x00808080, 0x00C0C0C0, 0x00FFFFFF, 0x00800000,
+ 0x00FF0000, 0x00FF00FF, 0x00FFFF00, 0x00808000, 0x00008000, 0x00008080,
+ 0x0000FF00, 0x00800080, 0x00000080, 0x000000FF, 0x0000FFFF };
+
+static const char *ppsz_color_descriptions[] = {
+ N_("Black"), N_("Gray"), N_("Silver"), N_("White"), N_("Maroon"),
+ N_("Red"), N_("Fuchsia"), N_("Yellow"), N_("Olive"), N_("Green"), N_("Teal"),
+ N_("Lime"), N_("Purple"), N_("Navy"), N_("Blue"), N_("Aqua") };
vlc_module_begin();
- set_shortname( _("Freetype"));
+ set_shortname( _("Text renderer"));
set_description( _("Freetype2 font renderer") );
set_category( CAT_VIDEO );
- set_subcategory( SUBCAT_VIDEO_TEXT );
+ set_subcategory( SUBCAT_VIDEO_SUBPIC );
add_file( "freetype-font", DEFAULT_FONT, NULL, FONT_TEXT, FONT_LONGTEXT,
VLC_FALSE );
+
add_integer( "freetype-fontsize", 0, NULL, FONTSIZE_TEXT,
FONTSIZE_LONGTEXT, VLC_TRUE );
+
/* opacity valid on 0..255, with default 255 = fully opaque */
add_integer_with_range( "freetype-opacity", 255, 0, 255, NULL,
- OPACITY_TEXT, OPACITY_LONGTEXT, VLC_FALSE );
+ OPACITY_TEXT, OPACITY_LONGTEXT, VLC_TRUE );
+
/* hook to the color values list, with default 0x00ffffff = white */
- add_integer( "freetype-color", 0x00FFFFFF, NULL, COLOR_TEXT, COLOR_LONGTEXT, VLC_TRUE );
+ add_integer( "freetype-color", 0x00FFFFFF, NULL, COLOR_TEXT,
+ COLOR_LONGTEXT, VLC_FALSE );
change_integer_list( pi_color_values, ppsz_color_descriptions, 0 );
add_integer( "freetype-rel-fontsize", 16, NULL, FONTSIZER_TEXT,
FONTSIZER_LONGTEXT, VLC_FALSE );
change_integer_list( pi_sizes, ppsz_sizes_text, 0 );
+ add_integer( "freetype-effect", 2, NULL, EFFECT_TEXT,
+ EFFECT_LONGTEXT, VLC_FALSE );
+ change_integer_list( pi_effects, ppsz_effects_text, 0 );
+ add_bool( "freetype-yuvp", 0, NULL, YUVP_TEXT,
+ YUVP_LONGTEXT, VLC_TRUE );
set_capability( "text renderer", 100 );
add_shortcut( "text" );
set_callbacks( Create, Destroy );
vlc_module_end();
-/**
- * Private data in a subpicture. Describes a string.
- */
-typedef struct subpicture_data_t
-{
- int i_width;
- int i_height;
- /** The string associated with this subpicture */
- byte_t *psz_text;
- line_desc_t *p_lines;
-
-} subpicture_data_t;
-
struct line_desc_t
{
/** NULL-terminated list of glyphs making the string */
FT_BitmapGlyph *pp_glyphs;
/** list of relative positions for the glyphs */
FT_Vector *p_glyph_pos;
+ /** list of RGB information for styled text
+ * -- if the rendering mode supports it (RenderYUVA) and
+ * b_new_color_mode is set, then it becomes possible to
+ * have multicoloured text within the subtitles. */
+ uint32_t *p_fg_rgb;
+ uint32_t *p_bg_rgb;
+ uint8_t *p_fg_bg_ratio; /* 0x00=100% FG --> 0x7F=100% BG */
+ vlc_bool_t b_new_color_mode;
+ /** underline information -- only supplied if text should be underlined */
+ uint16_t *pi_underline_offset;
+ uint16_t *pi_underline_thickness;
+
int i_height;
int i_width;
+ int i_red, i_green, i_blue;
+ int i_alpha;
+
line_desc_t *p_next;
};
-static subpicture_region_t *Render ( filter_t *, subpicture_t *, subpicture_data_t *, uint8_t,
- int, int, int );
-static void FreeString( subpicture_data_t * );
+typedef struct font_stack_t font_stack_t;
+struct font_stack_t
+{
+ char *psz_name;
+ int i_size;
+ uint32_t i_color; /* ARGB */
+ uint32_t i_karaoke_bg_color; /* ARGB */
+
+ font_stack_t *p_next;
+};
+
+typedef struct
+{
+ int i_font_size;
+ uint32_t i_font_color; /* ARGB */
+ uint32_t i_karaoke_bg_color; /* ARGB */
+ vlc_bool_t b_italic;
+ vlc_bool_t b_bold;
+ vlc_bool_t b_underline;
+ char *psz_fontname;
+} ft_style_t;
+
+static int Render( filter_t *, subpicture_region_t *, line_desc_t *, int, int);
+static void FreeLines( line_desc_t * );
static void FreeLine( line_desc_t * );
+#ifdef HAVE_FONTCONFIG
+static void FontBuilder( vlc_object_t *p_this);
+#endif
/*****************************************************************************
* filter_sys_t: freetype local data
FT_Library p_library; /* handle to library */
FT_Face p_face; /* handle to face object */
vlc_bool_t i_use_kerning;
- uint8_t i_font_opacity; /* freetype-opacity */
- int i_font_color; /* freetype-color */
- int i_red, i_blue, i_green; /* function vars to render */
+ uint8_t i_font_opacity;
+ int i_font_color;
int i_font_size;
- uint8_t i_opacity; /* function var to render */
- uint8_t pi_gamma[256];
+ int i_effect;
+
+ int i_default_font_size;
+ int i_display_height;
+#ifdef HAVE_FONTCONFIG
+ FcConfig *p_fontconfig;
+ vlc_bool_t b_fontconfig_ok;
+ vlc_mutex_t fontconfig_lock;
+#endif
+
+ input_attachment_t **pp_font_attachments;
+ int i_font_attachments;
};
/*****************************************************************************
*****************************************************************************/
static int Create( vlc_object_t *p_this )
{
- filter_t *p_filter = (filter_t *)p_this;
- filter_sys_t *p_sys;
- char *psz_fontfile = NULL;
- int i, i_error;
- vlc_value_t val;
+ filter_t *p_filter = (filter_t *)p_this;
+ filter_sys_t *p_sys;
+ char *psz_fontfile = NULL;
+ int i_error;
+ vlc_value_t val;
+ vlc_mutex_t *lock;
+ vlc_object_t *p_fontbuilder;
/* Allocate structure */
- p_sys = malloc( sizeof( filter_sys_t ) );
+ p_filter->p_sys = p_sys = malloc( sizeof( filter_sys_t ) );
if( !p_sys )
{
msg_Err( p_filter, "out of memory" );
p_sys->p_face = 0;
p_sys->p_library = 0;
p_sys->i_font_size = 0;
-
- for( i = 0; i < 256; i++ )
- {
- p_sys->pi_gamma[i] = (uint8_t)( pow( (double)i * 255.0f, 0.5f ) );
- }
+ p_sys->i_display_height = 0;
var_Create( p_filter, "freetype-font",
VLC_VAR_STRING | VLC_VAR_DOINHERIT );
VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Create( p_filter, "freetype-rel-fontsize",
VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Create( p_filter, "freetype-opacity", VLC_VAR_INTEGER|VLC_VAR_DOINHERIT );
+ var_Create( p_filter, "freetype-opacity",
+ VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Create( p_filter, "freetype-effect",
+ VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_filter, "freetype-opacity", &val );
p_sys->i_font_opacity = __MAX( __MIN( val.i_int, 255 ), 0 );
- var_Create( p_filter, "freetype-color", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
+ var_Create( p_filter, "freetype-color",
+ VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
var_Get( p_filter, "freetype-color", &val );
- if ( ( val.i_int > -1 ) && ( val.i_int < 0x01000000 ) ) /* valid range */
- {
- p_sys->i_font_color = val.i_int;
- }
- else msg_Warn(p_filter, "Invalid freetype color specified, using white [0xFFFFFF]");
+ p_sys->i_font_color = __MAX( __MIN( val.i_int, 0xFFFFFF ), 0 );
+ p_sys->i_effect = var_GetInteger( p_filter, "freetype-effect" );
/* Look what method was requested */
var_Get( p_filter, "freetype-font", &val );
psz_fontfile = val.psz_string;
if( !psz_fontfile || !*psz_fontfile )
{
- if( psz_fontfile ) free( psz_fontfile );
+ free( psz_fontfile );
psz_fontfile = (char *)malloc( PATH_MAX + 1 );
+ if( !psz_fontfile )
+ {
+ msg_Err( p_filter, "out of memory" );
+ goto error;
+ }
#ifdef WIN32
GetWindowsDirectory( psz_fontfile, PATH_MAX + 1 );
strcat( psz_fontfile, "\\fonts\\arial.ttf" );
-#elif SYS_DARWIN
+#elif defined(__APPLE__)
strcpy( psz_fontfile, DEFAULT_FONT );
#else
msg_Err( p_filter, "user didn't specify a font" );
msg_Err( p_filter, "couldn't initialize freetype" );
goto error;
}
-
i_error = FT_New_Face( p_sys->p_library, psz_fontfile ? psz_fontfile : "",
0, &p_sys->p_face );
if( i_error == FT_Err_Unknown_File_Format )
i_error = FT_Select_Charmap( p_sys->p_face, ft_encoding_unicode );
if( i_error )
{
- msg_Err( p_filter, "Font has no unicode translation table" );
+ msg_Err( p_filter, "font has no unicode translation table" );
goto error;
}
- p_sys->i_use_kerning = FT_HAS_KERNING( p_sys->p_face );
+#ifdef HAVE_FONTCONFIG
+ vlc_mutex_init( p_filter, &p_sys->fontconfig_lock );
+ p_sys->b_fontconfig_ok = VLC_FALSE;
+ p_sys->p_fontconfig = NULL;
-
- var_Get( p_filter, "freetype-fontsize", &val );
- if( val.i_int )
+ /* Check for an existing Fontbuilder thread */
+ lock = var_AcquireMutex( "fontbuilder" );
+ p_fontbuilder = vlc_object_find_name( p_filter->p_libvlc,
+ "fontlist builder",
+ FIND_CHILD );
+
+ if( ! p_fontbuilder )
{
- p_sys->i_font_size = val.i_int;
+ /* Create the FontBuilder thread as a child of a top-level
+ * object, so that it can survive the destruction of the
+ * freetype object - the fontlist only needs to be built once,
+ * and calling the fontbuild a second time while the first is
+ * still in progress can cause thread instabilities.
+ */
+
+ p_fontbuilder = vlc_object_create( p_filter->p_libvlc,
+ VLC_OBJECT_GENERIC );
+ if( p_fontbuilder )
+ {
+ p_fontbuilder->psz_object_name = "fontlist builder";
+ vlc_object_attach( p_fontbuilder, p_filter->p_libvlc );
+
+ var_Create( p_fontbuilder, "build-done", VLC_VAR_BOOL );
+ var_SetBool( p_fontbuilder, "build-done", VLC_FALSE );
+
+ if( vlc_thread_create( p_fontbuilder,
+ "fontlist builder",
+ FontBuilder,
+ VLC_THREAD_PRIORITY_LOW,
+ VLC_FALSE ) )
+ {
+ /* Don't destroy the fontconfig object - we won't be able to do
+ * italics or bold or change the font face, but we will still
+ * be able to do underline and change the font size.
+ */
+ msg_Warn( p_filter, "fontconfig database builder thread can't "
+ "be launched. Font styling support will be limited." );
+ }
+ }
+ else
+ {
+ vlc_object_release( p_fontbuilder );
+ }
}
else
{
- var_Get( p_filter, "freetype-rel-fontsize", &val );
- p_sys->i_font_size = (int)p_filter->fmt_out.video.i_height / val.i_int;
- }
- if( p_sys->i_font_size <= 0 )
- {
- msg_Warn( p_filter, "Invalid fontsize, using 12" );
- p_sys->i_font_size = 12;
+ vlc_object_release( p_fontbuilder );
}
- msg_Dbg( p_filter, "Using fontsize: %i", p_sys->i_font_size);
+ vlc_mutex_unlock( lock );
- i_error = FT_Set_Pixel_Sizes( p_sys->p_face, 0, p_sys->i_font_size );
- if( i_error )
- {
- msg_Err( p_filter, "couldn't set font size to %d", p_sys->i_font_size );
- goto error;
- }
+#endif
+
+ p_sys->i_use_kerning = FT_HAS_KERNING( p_sys->p_face );
+
+ var_Get( p_filter, "freetype-fontsize", &val );
+ p_sys->i_default_font_size = val.i_int;
+ if( SetFontSize( p_filter, 0 ) != VLC_SUCCESS ) goto error;
+
+ free( psz_fontfile );
+
+ p_sys->pp_font_attachments = NULL;
+ p_sys->i_font_attachments = 0;
+
+ p_filter->pf_render_text = RenderText;
+#ifdef HAVE_FONTCONFIG
+ p_filter->pf_render_html = RenderHtml;
+#else
+ p_filter->pf_render_html = NULL;
+#endif
+
+ LoadFontsFromAttachments( p_filter );
- if( psz_fontfile ) free( psz_fontfile );
- p_filter->pf_render_string = RenderText;
- p_filter->p_sys = p_sys;
return VLC_SUCCESS;
error:
if( p_sys->p_face ) FT_Done_Face( p_sys->p_face );
if( p_sys->p_library ) FT_Done_FreeType( p_sys->p_library );
- if( psz_fontfile ) free( psz_fontfile );
+ free( psz_fontfile );
free( p_sys );
return VLC_EGENERIC;
}
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys = p_filter->p_sys;
+ if( p_sys->pp_font_attachments )
+ {
+ int k;
+
+ for( k = 0; k < p_sys->i_font_attachments; k++ )
+ {
+ vlc_input_attachment_Delete( p_sys->pp_font_attachments[k] );
+ }
+
+ free( p_sys->pp_font_attachments );
+ }
+
+#ifdef HAVE_FONTCONFIG
+ vlc_mutex_destroy( &p_sys->fontconfig_lock );
+
+ if( p_sys->p_fontconfig )
+ {
+ FcConfigDestroy( p_sys->p_fontconfig );
+ p_sys->p_fontconfig = NULL;
+ }
+ /* FcFini asserts calling the subfunction FcCacheFini()
+ * even if no other library functions have been made since FcInit(),
+ * so don't call it. */
+#endif
FT_Done_Face( p_sys->p_face );
FT_Done_FreeType( p_sys->p_library );
free( p_sys );
}
+#ifdef HAVE_FONTCONFIG
+
+static void FontBuilder( vlc_object_t *p_this )
+{
+ FcConfig *p_fontconfig = FcInitLoadConfig();
+ vlc_mutex_t *lock;
+
+ vlc_thread_ready( p_this );
+
+ if( p_fontconfig )
+ {
+ mtime_t t1, t2;
+
+ msg_Dbg( p_this, "Building font database..." );
+ t1 = mdate();
+ if(! FcConfigBuildFonts( p_fontconfig ))
+ {
+ /* Don't destroy the fontconfig object - we won't be able to do
+ * italics or bold or change the font face, but we will still
+ * be able to do underline and change the font size.
+ */
+ msg_Err( p_this, "fontconfig database can't be built. "
+ "Font styling won't be available" );
+ }
+ t2 = mdate();
+
+ msg_Dbg( p_this, "Finished building font database." );
+ msg_Dbg( p_this, "Took %ld seconds", (long)((t2 - t1)/1000000) );
+
+ lock = var_AcquireMutex( "fontbuilder" );
+ var_SetBool( p_this, "build-done", VLC_TRUE );
+
+ FcConfigDestroy( p_fontconfig );
+ vlc_mutex_unlock( lock );
+ }
+ vlc_object_detach( p_this );
+ vlc_object_release( p_this );
+}
+
+#endif
+
+/*****************************************************************************
+ * Make any TTF/OTF fonts present in the attachments of the media file
+ * and store them for later use by the FreeType Engine
+ *****************************************************************************/
+static int LoadFontsFromAttachments( filter_t *p_filter )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+ input_thread_t *p_input;
+ input_attachment_t **pp_attachments;
+ int i_attachments_cnt;
+ int k;
+ int rv = VLC_SUCCESS;
+
+ p_input = (input_thread_t *)vlc_object_find( p_filter, VLC_OBJECT_INPUT, FIND_PARENT );
+ if( ! p_input )
+ return VLC_EGENERIC;
+
+ if( VLC_SUCCESS != input_Control( p_input, INPUT_GET_ATTACHMENTS, &pp_attachments, &i_attachments_cnt ))
+ {
+ vlc_object_release(p_input);
+ return VLC_EGENERIC;
+ }
+
+ p_sys->i_font_attachments = 0;
+ p_sys->pp_font_attachments = malloc( i_attachments_cnt * sizeof( input_attachment_t * ));
+ if(! p_sys->pp_font_attachments )
+ rv = VLC_ENOMEM;
+
+ for( k = 0; k < i_attachments_cnt; k++ )
+ {
+ input_attachment_t *p_attach = pp_attachments[k];
+
+ if( p_sys->pp_font_attachments )
+ {
+ if(( !strcmp( p_attach->psz_mime, "application/x-truetype-font" ) || // TTF
+ !strcmp( p_attach->psz_mime, "application/x-font-otf" ) ) && // OTF
+ ( p_attach->i_data > 0 ) &&
+ ( p_attach->p_data != NULL ) )
+ {
+ p_sys->pp_font_attachments[ p_sys->i_font_attachments++ ] = p_attach;
+ }
+ else
+ {
+ vlc_input_attachment_Delete( p_attach );
+ }
+ }
+ else
+ {
+ vlc_input_attachment_Delete( p_attach );
+ }
+ }
+ free( pp_attachments );
+
+ vlc_object_release(p_input);
+
+ return rv;
+}
+
/*****************************************************************************
* Render: place string in picture
*****************************************************************************
* This function merges the previously rendered freetype glyphs into a picture
*****************************************************************************/
-static subpicture_region_t *Render( filter_t *p_filter, subpicture_t *p_spu,
- subpicture_data_t *p_string,
- uint8_t opacity,
- int red, int green, int blue)
+static int Render( filter_t *p_filter, subpicture_region_t *p_region,
+ line_desc_t *p_line, int i_width, int i_height )
{
- filter_sys_t *p_sys = p_filter->p_sys;
- line_desc_t *p_line;
- uint8_t *p_y, *p_u, *p_v, *p_a;
+ static uint8_t pi_gamma[16] =
+ {0x00, 0x52, 0x84, 0x96, 0xb8, 0xca, 0xdc, 0xee, 0xff,
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+ uint8_t *p_dst;
video_format_t fmt;
int i, x, y, i_pitch;
- uint8_t i_y, i_u, i_v; /* YUV values, derived from incoming RGB */
- subpicture_region_t *p_region;
-
- /* calculate text color components: */
- i_y = (uint8_t) ( ( 66 * red + 129 * green + 25 * blue + 128) >> 8) + 16;
- i_u = (uint8_t) ( ( -38 * red - 74 * green + 112 * blue + 128) >> 8) + 128;
- i_v = (uint8_t) ( ( 112 * red - 94 * green - 18 * blue + 128) >> 8) + 128;
+ uint8_t i_y; /* YUV values, derived from incoming RGB */
+ int8_t i_u, i_v;
+ subpicture_region_t *p_region_tmp;
/* Create a new subpicture region */
memset( &fmt, 0, sizeof(video_format_t) );
- fmt.i_chroma = VLC_FOURCC('Y','U','V','A');
- fmt.i_aspect = VOUT_ASPECT_FACTOR;
- fmt.i_width = fmt.i_visible_width = p_string->i_width + 2;
- fmt.i_height = fmt.i_visible_height = p_string->i_height + 2;
+ fmt.i_chroma = VLC_FOURCC('Y','U','V','P');
+ fmt.i_aspect = 0;
+ fmt.i_width = fmt.i_visible_width = i_width + 4;
+ fmt.i_height = fmt.i_visible_height = i_height + 4;
+ if( p_region->fmt.i_visible_width > 0 )
+ fmt.i_visible_width = p_region->fmt.i_visible_width;
+ if( p_region->fmt.i_visible_height > 0 )
+ fmt.i_visible_height = p_region->fmt.i_visible_height;
fmt.i_x_offset = fmt.i_y_offset = 0;
- p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
- if( !p_region )
+ p_region_tmp = spu_CreateRegion( p_filter, &fmt );
+ if( !p_region_tmp )
{
msg_Err( p_filter, "cannot allocate SPU region" );
- return NULL;
+ return VLC_EGENERIC;
+ }
+
+ p_region->fmt = p_region_tmp->fmt;
+ p_region->picture = p_region_tmp->picture;
+ free( p_region_tmp );
+
+ /* Calculate text color components */
+ i_y = (uint8_t)(( 66 * p_line->i_red + 129 * p_line->i_green +
+ 25 * p_line->i_blue + 128) >> 8) + 16;
+ i_u = (int8_t)(( -38 * p_line->i_red - 74 * p_line->i_green +
+ 112 * p_line->i_blue + 128) >> 8) + 128;
+ i_v = (int8_t)(( 112 * p_line->i_red - 94 * p_line->i_green -
+ 18 * p_line->i_blue + 128) >> 8) + 128;
+
+ /* Build palette */
+ fmt.p_palette->i_entries = 16;
+ for( i = 0; i < 8; i++ )
+ {
+ fmt.p_palette->palette[i][0] = 0;
+ fmt.p_palette->palette[i][1] = 0x80;
+ fmt.p_palette->palette[i][2] = 0x80;
+ fmt.p_palette->palette[i][3] = pi_gamma[i];
+ fmt.p_palette->palette[i][3] =
+ (int)fmt.p_palette->palette[i][3] * (255 - p_line->i_alpha) / 255;
+ }
+ for( i = 8; i < fmt.p_palette->i_entries; i++ )
+ {
+ fmt.p_palette->palette[i][0] = i * 16 * i_y / 256;
+ fmt.p_palette->palette[i][1] = i_u;
+ fmt.p_palette->palette[i][2] = i_v;
+ fmt.p_palette->palette[i][3] = pi_gamma[i];
+ fmt.p_palette->palette[i][3] =
+ (int)fmt.p_palette->palette[i][3] * (255 - p_line->i_alpha) / 255;
}
- p_region->i_x = p_region->i_y = 0;
- p_y = p_region->picture.Y_PIXELS;
- p_u = p_region->picture.U_PIXELS;
- p_v = p_region->picture.V_PIXELS;
- p_a = p_region->picture.A_PIXELS;
+ p_dst = p_region->picture.Y_PIXELS;
i_pitch = p_region->picture.Y_PITCH;
/* Initialize the region pixels */
- memset( p_y, 0x00, i_pitch * p_region->fmt.i_height );
- memset( p_u, 0x80, i_pitch * p_region->fmt.i_height );
- memset( p_v, 0x80, i_pitch * p_region->fmt.i_height );
- memset( p_a, 0x00, i_pitch * p_region->fmt.i_height );
+ memset( p_dst, 0, i_pitch * p_region->fmt.i_height );
-#define pi_gamma p_sys->pi_gamma
-
- for( p_line = p_string->p_lines; p_line != NULL; p_line = p_line->p_next )
+ for( ; p_line != NULL; p_line = p_line->p_next )
{
int i_glyph_tmax = 0;
- int i_bitmap_offset, i_offset;
+ int i_bitmap_offset, i_offset, i_align_offset = 0;
for( i = 0; p_line->pp_glyphs[i] != NULL; i++ )
{
FT_BitmapGlyph p_glyph = p_line->pp_glyphs[ i ];
i_glyph_tmax = __MAX( i_glyph_tmax, p_glyph->top );
}
+ if( p_line->i_width < i_width )
+ {
+ if( (p_region->i_align & 0x3) == SUBPICTURE_ALIGN_RIGHT )
+ {
+ i_align_offset = i_width - p_line->i_width;
+ }
+ else if( (p_region->i_align & 0x3) != SUBPICTURE_ALIGN_LEFT )
+ {
+ i_align_offset = ( i_width - p_line->i_width ) / 2;
+ }
+ }
+
for( i = 0; p_line->pp_glyphs[i] != NULL; i++ )
{
FT_BitmapGlyph p_glyph = p_line->pp_glyphs[ i ];
i_offset = ( p_line->p_glyph_pos[ i ].y +
- i_glyph_tmax - p_glyph->top + 1 ) *
- i_pitch + p_line->p_glyph_pos[ i ].x + p_glyph->left + 1;
+ i_glyph_tmax - p_glyph->top + 2 ) *
+ i_pitch + p_line->p_glyph_pos[ i ].x + p_glyph->left + 2 +
+ i_align_offset;
for( y = 0, i_bitmap_offset = 0; y < p_glyph->bitmap.rows; y++ )
{
for( x = 0; x < p_glyph->bitmap.width; x++, i_bitmap_offset++ )
{
- if( !pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]] )
- continue;
-
- i_offset -= i_pitch;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
- i_offset += i_pitch; x--;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
- x += 2;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
- i_offset += i_pitch; x--;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])*opacity/512;
- i_offset -= i_pitch;
+ if( p_glyph->bitmap.buffer[i_bitmap_offset] )
+ p_dst[i_offset+x] =
+ ((int)p_glyph->bitmap.buffer[i_bitmap_offset] + 8)/16;
}
i_offset += i_pitch;
}
+ }
+ }
- i_offset = ( p_line->p_glyph_pos[ i ].y +
- i_glyph_tmax - p_glyph->top + 1 ) *
- i_pitch + p_line->p_glyph_pos[ i ].x + p_glyph->left + 1;
+ /* Outlining (find something better than nearest neighbour filtering ?) */
+ if( 1 )
+ {
+ uint8_t *p_dst = p_region->picture.Y_PIXELS;
+ uint8_t *p_top = p_dst; /* Use 1st line as a cache */
+ uint8_t left, current;
- for( y = 0, i_bitmap_offset = 0; y < p_glyph->bitmap.rows; y++ )
+ for( y = 1; y < (int)fmt.i_height - 1; y++ )
+ {
+ if( y > 1 ) memcpy( p_top, p_dst, fmt.i_width );
+ p_dst += p_region->picture.Y_PITCH;
+ left = 0;
+
+ for( x = 1; x < (int)fmt.i_width - 1; x++ )
{
- for( x = 0; x < p_glyph->bitmap.width; x++, i_bitmap_offset++ )
- {
- p_y[i_offset + x] = i_y*opacity*pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]]/(256*256);
- p_u[i_offset + x] = i_u;
- p_v[i_offset + x] = i_v;
- }
- i_offset += i_pitch;
+ current = p_dst[x];
+ p_dst[x] = ( 8 * (int)p_dst[x] + left + p_dst[x+1] + p_top[x -1]+ p_top[x] + p_top[x+1] +
+ p_dst[x -1 + p_region->picture.Y_PITCH ] + p_dst[x + p_region->picture.Y_PITCH] + p_dst[x + 1 + p_region->picture.Y_PITCH]) / 16;
+ left = current;
}
-
-#undef pi_gamma
}
+ memset( p_top, 0, fmt.i_width );
}
- return p_region;
+
+ return VLC_SUCCESS;
}
-/**
- * This function receives a string and creates a subpicture for it. It
- * also calculates the size needed for this string, and renders the
- * needed glyphs into memory. It is used as pf_add_string callback in
- * the vout method by this module
- */
-static subpicture_region_t *RenderText( filter_t *p_filter,
- subpicture_t *p_subpic,
- subpicture_region_t *p_region )
+static void UnderlineGlyphYUVA( int i_line_thickness, int i_line_offset, vlc_bool_t b_ul_next_char,
+ FT_BitmapGlyph p_this_glyph, FT_Vector *p_this_glyph_pos,
+ FT_BitmapGlyph p_next_glyph, FT_Vector *p_next_glyph_pos,
+ int i_glyph_tmax, int i_align_offset,
+ uint8_t i_y, uint8_t i_u, uint8_t i_v,
+ subpicture_region_t *p_region)
{
- filter_sys_t *p_sys = p_filter->p_sys;
- subpicture_data_t *p_string = 0;
- line_desc_t *p_line = 0, *p_next = 0, *p_prev = 0;
- int i, i_pen_y, i_pen_x, i_error, i_glyph_index, i_previous;
- uint32_t *psz_unicode, *psz_unicode_orig = 0, i_char, *psz_line_start;
- int i_string_length;
- char *psz_string;
- vlc_iconv_t iconv_handle = (vlc_iconv_t)(-1);
- int i_font_color, i_font_opacity, i_font_size;
- subpicture_region_t *p_res;
+ int y, x, z;
+ int i_pitch;
+ uint8_t *p_dst_y,*p_dst_u,*p_dst_v,*p_dst_a;
- FT_BBox line;
- FT_BBox glyph_size;
- FT_Vector result;
- FT_Glyph tmp_glyph;
+ p_dst_y = p_region->picture.Y_PIXELS;
+ p_dst_u = p_region->picture.U_PIXELS;
+ p_dst_v = p_region->picture.V_PIXELS;
+ p_dst_a = p_region->picture.A_PIXELS;
+ i_pitch = p_region->picture.A_PITCH;
- /* Sanity check */
- if( !p_region ) return NULL;
- psz_string = p_region->psz_text;
- if( !psz_string || !*psz_string ) goto error;
- i_font_color = p_region->i_font_color;
- i_font_opacity = p_region->i_font_opacity;
- i_font_size = p_region->i_font_size;
-
- result.x = 0;
- result.y = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
-
- /* Create and initialize private data for the subpicture */
- p_string = malloc( sizeof(subpicture_data_t) );
- if( !p_string )
- {
- msg_Err( p_filter, "out of memory" );
- goto error;
- }
- p_string->p_lines = 0;
- p_string->psz_text = strdup( psz_string );
+ int i_offset = ( p_this_glyph_pos->y + i_glyph_tmax + i_line_offset + 3 ) * i_pitch +
+ p_this_glyph_pos->x + p_this_glyph->left + 3 + i_align_offset;
- psz_unicode = psz_unicode_orig =
- malloc( ( strlen(psz_string) + 1 ) * sizeof(uint32_t) );
- if( psz_unicode == NULL )
- {
- msg_Err( p_filter, "out of memory" );
- goto error;
- }
-#if defined(WORDS_BIGENDIAN)
- iconv_handle = vlc_iconv_open( "UCS-4BE", "UTF-8" );
-#else
- iconv_handle = vlc_iconv_open( "UCS-4LE", "UTF-8" );
-#endif
- if( iconv_handle == (vlc_iconv_t)-1 )
+ for( y = 0; y < i_line_thickness; y++ )
{
- msg_Warn( p_filter, "unable to do conversion" );
- goto error;
- }
+ int i_extra = p_this_glyph->bitmap.width;
- /* Set up the glyphs for the desired font size. By definition,
- p_sys->i_font_size is a valid value, else the initial Create would
- have failed. Using -1 as a flag to use the freetype-fontsize */
- if ( i_font_size < 0 )
- {
- FT_Set_Pixel_Sizes( p_sys->p_face, 0, p_sys->i_font_size );
- }
- else
- {
- i_error = FT_Set_Pixel_Sizes( p_sys->p_face, 0, i_font_size );
- if( i_error )
+ if( b_ul_next_char )
{
- msg_Warn( p_filter, "Invalid font size to RenderText, using %d",
- p_sys->i_font_size );
- FT_Set_Pixel_Sizes( p_sys->p_face, 0, p_sys->i_font_size );
+ i_extra = (p_next_glyph_pos->x + p_next_glyph->left) -
+ (p_this_glyph_pos->x + p_this_glyph->left);
}
- }
+ for( x = 0; x < i_extra; x++ )
+ {
+ vlc_bool_t b_ok = VLC_TRUE;
- {
- char *p_in_buffer, *p_out_buffer;
- size_t i_in_bytes, i_out_bytes, i_out_bytes_left, i_ret;
- i_in_bytes = strlen( psz_string );
- i_out_bytes = i_in_bytes * sizeof( uint32_t );
- i_out_bytes_left = i_out_bytes;
- p_in_buffer = psz_string;
- p_out_buffer = (char *)psz_unicode;
- i_ret = vlc_iconv( iconv_handle, &p_in_buffer, &i_in_bytes,
- &p_out_buffer, &i_out_bytes_left );
+ /* break the underline around the tails of any glyphs which cross it */
+ for( z = x - i_line_thickness;
+ z < x + i_line_thickness && b_ok;
+ z++ )
+ {
+ if( p_next_glyph && ( z >= i_extra ) )
+ {
+ int i_row = i_line_offset + p_next_glyph->top + y;
- vlc_iconv_close( iconv_handle );
+ if( ( p_next_glyph->bitmap.rows > i_row ) &&
+ p_next_glyph->bitmap.buffer[p_next_glyph->bitmap.width * i_row + z-i_extra] )
+ {
+ b_ok = VLC_FALSE;
+ }
+ }
+ else if ((z > 0 ) && (z < p_this_glyph->bitmap.width))
+ {
+ int i_row = i_line_offset + p_this_glyph->top + y;
- if( i_in_bytes )
- {
- msg_Warn( p_filter, "failed to convert string to unicode (%s), "
- "bytes left %d", strerror(errno), i_in_bytes );
- goto error;
+ if( ( p_this_glyph->bitmap.rows > i_row ) &&
+ p_this_glyph->bitmap.buffer[p_this_glyph->bitmap.width * i_row + z] )
+ {
+ b_ok = VLC_FALSE;
+ }
+ }
+ }
+
+ if( b_ok )
+ {
+ p_dst_y[i_offset+x] = (i_y * 255) >> 8;
+ p_dst_u[i_offset+x] = i_u;
+ p_dst_v[i_offset+x] = i_v;
+ p_dst_a[i_offset+x] = 255;
+ }
}
- *(uint32_t*)p_out_buffer = 0;
- i_string_length = (i_out_bytes - i_out_bytes_left) / sizeof(uint32_t);
+ i_offset += i_pitch;
}
+}
-#if defined(HAVE_FRIBIDI)
- {
- uint32_t *p_fribidi_string;
- FriBidiCharType base_dir = FRIBIDI_TYPE_ON;
- p_fribidi_string = malloc( (i_string_length + 1) * sizeof(uint32_t) );
- fribidi_log2vis( (FriBidiChar*)psz_unicode, i_string_length,
- &base_dir, (FriBidiChar*)p_fribidi_string, 0, 0, 0 );
- free( psz_unicode_orig );
- psz_unicode = psz_unicode_orig = p_fribidi_string;
- p_fribidi_string[ i_string_length ] = 0;
- }
-#endif
+static void DrawBlack( line_desc_t *p_line, int i_width, subpicture_region_t *p_region, int xoffset, int yoffset )
+{
+ uint8_t *p_dst = p_region->picture.A_PIXELS;
+ int i_pitch = p_region->picture.A_PITCH;
+ int x,y;
- /* Calculate relative glyph positions and a bounding box for the
- * entire string */
- p_line = NewLine( psz_string );
- if( p_line == NULL )
+ for( ; p_line != NULL; p_line = p_line->p_next )
{
- msg_Err( p_filter, "out of memory" );
- goto error;
- }
- p_string->p_lines = p_line;
- i_pen_x = 0;
- i_pen_y = 0;
- i_previous = 0;
- i = 0;
- psz_line_start = psz_unicode;
-
-#define face p_sys->p_face
-#define glyph face->glyph
+ int i_glyph_tmax=0, i = 0;
+ int i_bitmap_offset, i_offset, i_align_offset = 0;
+ for( i = 0; p_line->pp_glyphs[i] != NULL; i++ )
+ {
+ FT_BitmapGlyph p_glyph = p_line->pp_glyphs[ i ];
+ i_glyph_tmax = __MAX( i_glyph_tmax, p_glyph->top );
+ }
- while( *psz_unicode )
- {
- i_char = *psz_unicode++;
- if( i_char == '\r' ) /* ignore CR chars wherever they may be */
+ if( p_line->i_width < i_width )
{
- continue;
+ if( (p_region->i_align & 0x3) == SUBPICTURE_ALIGN_RIGHT )
+ {
+ i_align_offset = i_width - p_line->i_width;
+ }
+ else if( (p_region->i_align & 0x3) != SUBPICTURE_ALIGN_LEFT )
+ {
+ i_align_offset = ( i_width - p_line->i_width ) / 2;
+ }
}
- if( i_char == '\n' )
+ for( i = 0; p_line->pp_glyphs[i] != NULL; i++ )
{
- psz_line_start = psz_unicode;
- p_next = NewLine( psz_string );
- if( p_next == NULL )
+ FT_BitmapGlyph p_glyph = p_line->pp_glyphs[ i ];
+
+ i_offset = ( p_line->p_glyph_pos[ i ].y +
+ i_glyph_tmax - p_glyph->top + 3 + yoffset ) *
+ i_pitch + p_line->p_glyph_pos[ i ].x + p_glyph->left + 3 +
+ i_align_offset +xoffset;
+
+ for( y = 0, i_bitmap_offset = 0; y < p_glyph->bitmap.rows; y++ )
{
- msg_Err( p_filter, "out of memory" );
- goto error;
+ for( x = 0; x < p_glyph->bitmap.width; x++, i_bitmap_offset++ )
+ {
+ if( p_glyph->bitmap.buffer[i_bitmap_offset] )
+ if( p_dst[i_offset+x] <
+ ((int)p_glyph->bitmap.buffer[i_bitmap_offset]) )
+ p_dst[i_offset+x] =
+ ((int)p_glyph->bitmap.buffer[i_bitmap_offset]);
+ }
+ i_offset += i_pitch;
}
- p_line->p_next = p_next;
+ }
+ }
+
+}
+
+/*****************************************************************************
+ * Render: place string in picture
+ *****************************************************************************
+ * This function merges the previously rendered freetype glyphs into a picture
+ *****************************************************************************/
+static int RenderYUVA( filter_t *p_filter, subpicture_region_t *p_region,
+ line_desc_t *p_line, int i_width, int i_height )
+{
+ uint8_t *p_dst_y,*p_dst_u,*p_dst_v,*p_dst_a;
+ video_format_t fmt;
+ int i, x, y, i_pitch, i_alpha;
+ uint8_t i_y, i_u, i_v; /* YUV values, derived from incoming RGB */
+ subpicture_region_t *p_region_tmp;
+
+ if( i_width == 0 || i_height == 0 )
+ return VLC_SUCCESS;
+
+ /* Create a new subpicture region */
+ memset( &fmt, 0, sizeof(video_format_t) );
+ fmt.i_chroma = VLC_FOURCC('Y','U','V','A');
+ fmt.i_aspect = 0;
+ fmt.i_width = fmt.i_visible_width = i_width + 6;
+ fmt.i_height = fmt.i_visible_height = i_height + 6;
+ if( p_region->fmt.i_visible_width > 0 )
+ fmt.i_visible_width = p_region->fmt.i_visible_width;
+ if( p_region->fmt.i_visible_height > 0 )
+ fmt.i_visible_height = p_region->fmt.i_visible_height;
+ fmt.i_x_offset = fmt.i_y_offset = 0;
+ p_region_tmp = spu_CreateRegion( p_filter, &fmt );
+ if( !p_region_tmp )
+ {
+ msg_Err( p_filter, "cannot allocate SPU region" );
+ return VLC_EGENERIC;
+ }
+
+ p_region->fmt = p_region_tmp->fmt;
+ p_region->picture = p_region_tmp->picture;
+ free( p_region_tmp );
+
+ /* Calculate text color components */
+ YUVFromRGB( (p_line->i_red << 16) |
+ (p_line->i_green << 8) |
+ (p_line->i_blue ),
+ &i_y, &i_u, &i_v);
+ i_alpha = p_line->i_alpha;
+
+ p_dst_y = p_region->picture.Y_PIXELS;
+ p_dst_u = p_region->picture.U_PIXELS;
+ p_dst_v = p_region->picture.V_PIXELS;
+ p_dst_a = p_region->picture.A_PIXELS;
+ i_pitch = p_region->picture.A_PITCH;
+
+ /* Initialize the region pixels */
+ if( p_filter->p_sys->i_effect != EFFECT_BACKGROUND )
+ {
+ memset( p_dst_y, 0x00, i_pitch * p_region->fmt.i_height );
+ memset( p_dst_u, 0x80, i_pitch * p_region->fmt.i_height );
+ memset( p_dst_v, 0x80, i_pitch * p_region->fmt.i_height );
+ memset( p_dst_a, 0, i_pitch * p_region->fmt.i_height );
+ }
+ else
+ {
+ memset( p_dst_y, 0x0, i_pitch * p_region->fmt.i_height );
+ memset( p_dst_u, 0x80, i_pitch * p_region->fmt.i_height );
+ memset( p_dst_v, 0x80, i_pitch * p_region->fmt.i_height );
+ memset( p_dst_a, 0x80, i_pitch * p_region->fmt.i_height );
+ }
+ if( p_filter->p_sys->i_effect == EFFECT_OUTLINE ||
+ p_filter->p_sys->i_effect == EFFECT_OUTLINE_FAT )
+ {
+ DrawBlack( p_line, i_width, p_region, 0, 0);
+ DrawBlack( p_line, i_width, p_region, -1, 0);
+ DrawBlack( p_line, i_width, p_region, 0, -1);
+ DrawBlack( p_line, i_width, p_region, 1, 0);
+ DrawBlack( p_line, i_width, p_region, 0, 1);
+ }
+
+ if( p_filter->p_sys->i_effect == EFFECT_OUTLINE_FAT )
+ {
+ DrawBlack( p_line, i_width, p_region, -1, -1);
+ DrawBlack( p_line, i_width, p_region, -1, 1);
+ DrawBlack( p_line, i_width, p_region, 1, -1);
+ DrawBlack( p_line, i_width, p_region, 1, 1);
+
+ DrawBlack( p_line, i_width, p_region, -2, 0);
+ DrawBlack( p_line, i_width, p_region, 0, -2);
+ DrawBlack( p_line, i_width, p_region, 2, 0);
+ DrawBlack( p_line, i_width, p_region, 0, 2);
+
+ DrawBlack( p_line, i_width, p_region, -2, -2);
+ DrawBlack( p_line, i_width, p_region, -2, 2);
+ DrawBlack( p_line, i_width, p_region, 2, -2);
+ DrawBlack( p_line, i_width, p_region, 2, 2);
+
+ DrawBlack( p_line, i_width, p_region, -3, 0);
+ DrawBlack( p_line, i_width, p_region, 0, -3);
+ DrawBlack( p_line, i_width, p_region, 3, 0);
+ DrawBlack( p_line, i_width, p_region, 0, 3);
+ }
+
+ for( ; p_line != NULL; p_line = p_line->p_next )
+ {
+ int i_glyph_tmax = 0;
+ int i_bitmap_offset, i_offset, i_align_offset = 0;
+ for( i = 0; p_line->pp_glyphs[i] != NULL; i++ )
+ {
+ FT_BitmapGlyph p_glyph = p_line->pp_glyphs[ i ];
+ i_glyph_tmax = __MAX( i_glyph_tmax, p_glyph->top );
+ }
+
+ if( p_line->i_width < i_width )
+ {
+ if( (p_region->i_align & 0x3) == SUBPICTURE_ALIGN_RIGHT )
+ {
+ i_align_offset = i_width - p_line->i_width;
+ }
+ else if( (p_region->i_align & 0x3) != SUBPICTURE_ALIGN_LEFT )
+ {
+ i_align_offset = ( i_width - p_line->i_width ) / 2;
+ }
+ }
+
+ for( i = 0; p_line->pp_glyphs[i] != NULL; i++ )
+ {
+ FT_BitmapGlyph p_glyph = p_line->pp_glyphs[ i ];
+
+ i_offset = ( p_line->p_glyph_pos[ i ].y +
+ i_glyph_tmax - p_glyph->top + 3 ) *
+ i_pitch + p_line->p_glyph_pos[ i ].x + p_glyph->left + 3 +
+ i_align_offset;
+
+ if( p_line->b_new_color_mode )
+ {
+ /* Every glyph can (and in fact must) have its own color */
+ YUVFromRGB( p_line->p_fg_rgb[ i ], &i_y, &i_u, &i_v );
+ }
+
+ for( y = 0, i_bitmap_offset = 0; y < p_glyph->bitmap.rows; y++ )
+ {
+ for( x = 0; x < p_glyph->bitmap.width; x++, i_bitmap_offset++ )
+ {
+ uint8_t i_y_local = i_y;
+ uint8_t i_u_local = i_u;
+ uint8_t i_v_local = i_v;
+
+ if( p_line->p_fg_bg_ratio != 0x00 )
+ {
+ int i_split = p_glyph->bitmap.width *
+ p_line->p_fg_bg_ratio[ i ] / 0x7f;
+
+ if( x > i_split )
+ {
+ YUVFromRGB( p_line->p_bg_rgb[ i ],
+ &i_y_local, &i_u_local, &i_v_local );
+ }
+ }
+
+ if( p_glyph->bitmap.buffer[i_bitmap_offset] )
+ {
+ p_dst_y[i_offset+x] = ((p_dst_y[i_offset+x] *(255-(int)p_glyph->bitmap.buffer[i_bitmap_offset])) +
+ i_y * ((int)p_glyph->bitmap.buffer[i_bitmap_offset])) >> 8;
+
+ p_dst_u[i_offset+x] = i_u;
+ p_dst_v[i_offset+x] = i_v;
+
+ if( p_filter->p_sys->i_effect == EFFECT_BACKGROUND )
+ p_dst_a[i_offset+x] = 0xff;
+ }
+ }
+ i_offset += i_pitch;
+ }
+
+ if( p_line->pi_underline_thickness[ i ] )
+ {
+ UnderlineGlyphYUVA( p_line->pi_underline_thickness[ i ],
+ p_line->pi_underline_offset[ i ],
+ (p_line->pp_glyphs[i+1] && (p_line->pi_underline_thickness[ i + 1] > 0)),
+ p_line->pp_glyphs[i], &(p_line->p_glyph_pos[i]),
+ p_line->pp_glyphs[i+1], &(p_line->p_glyph_pos[i+1]),
+ i_glyph_tmax, i_align_offset,
+ i_y, i_u, i_v,
+ p_region);
+ }
+ }
+ }
+
+ /* Apply the alpha setting */
+ for( i = 0; i < (int)fmt.i_height * i_pitch; i++ )
+ p_dst_a[i] = p_dst_a[i] * (255 - i_alpha) / 255;
+
+ return VLC_SUCCESS;
+}
+
+/**
+ * This function renders a text subpicture region into another one.
+ * It also calculates the size needed for this string, and renders the
+ * needed glyphs into memory. It is used as pf_add_string callback in
+ * the vout method by this module
+ */
+static int RenderText( filter_t *p_filter, subpicture_region_t *p_region_out,
+ subpicture_region_t *p_region_in )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+ line_desc_t *p_lines = NULL, *p_line = NULL, *p_next = NULL, *p_prev = NULL;
+ int i, i_pen_y, i_pen_x, i_error, i_glyph_index, i_previous;
+ uint32_t *psz_unicode, *psz_unicode_orig = NULL, i_char, *psz_line_start;
+ int i_string_length;
+ char *psz_string;
+ vlc_iconv_t iconv_handle = (vlc_iconv_t)(-1);
+ int i_font_color, i_font_alpha, i_font_size, i_red, i_green, i_blue;
+ vlc_value_t val;
+ int i_scale = 1000;
+
+ FT_BBox line;
+ FT_BBox glyph_size;
+ FT_Vector result;
+ FT_Glyph tmp_glyph;
+
+ /* Sanity check */
+ if( !p_region_in || !p_region_out ) return VLC_EGENERIC;
+ psz_string = p_region_in->psz_text;
+ if( !psz_string || !*psz_string ) return VLC_EGENERIC;
+
+ if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
+ i_scale = val.i_int;
+
+ if( p_region_in->p_style )
+ {
+ i_font_color = __MAX( __MIN( p_region_in->p_style->i_font_color, 0xFFFFFF ), 0 );
+ i_font_alpha = __MAX( __MIN( p_region_in->p_style->i_font_alpha, 255 ), 0 );
+ i_font_size = __MAX( __MIN( p_region_in->p_style->i_font_size, 255 ), 0 ) * i_scale / 1000;
+ }
+ else
+ {
+ i_font_color = p_sys->i_font_color;
+ i_font_alpha = 255 - p_sys->i_font_opacity;
+ i_font_size = p_sys->i_default_font_size * i_scale / 1000;
+ }
+
+ if( i_font_color == 0xFFFFFF ) i_font_color = p_sys->i_font_color;
+ if( !i_font_alpha ) i_font_alpha = 255 - p_sys->i_font_opacity;
+ SetFontSize( p_filter, i_font_size );
+
+ i_red = ( i_font_color & 0x00FF0000 ) >> 16;
+ i_green = ( i_font_color & 0x0000FF00 ) >> 8;
+ i_blue = i_font_color & 0x000000FF;
+
+ result.x = result.y = 0;
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
+
+ psz_unicode = psz_unicode_orig =
+ malloc( ( strlen(psz_string) + 1 ) * sizeof(uint32_t) );
+ if( psz_unicode == NULL )
+ {
+ msg_Err( p_filter, "out of memory" );
+ goto error;
+ }
+#if defined(WORDS_BIGENDIAN)
+ iconv_handle = vlc_iconv_open( "UCS-4BE", "UTF-8" );
+#else
+ iconv_handle = vlc_iconv_open( "UCS-4LE", "UTF-8" );
+#endif
+ if( iconv_handle == (vlc_iconv_t)-1 )
+ {
+ msg_Warn( p_filter, "unable to do conversion" );
+ goto error;
+ }
+
+ {
+ char *p_out_buffer;
+ const char *p_in_buffer = psz_string;
+ size_t i_in_bytes, i_out_bytes, i_out_bytes_left, i_ret;
+ i_in_bytes = strlen( psz_string );
+ i_out_bytes = i_in_bytes * sizeof( uint32_t );
+ i_out_bytes_left = i_out_bytes;
+ p_out_buffer = (char *)psz_unicode;
+ i_ret = vlc_iconv( iconv_handle, (const char**)&p_in_buffer,
+ &i_in_bytes,
+ &p_out_buffer, &i_out_bytes_left );
+
+ vlc_iconv_close( iconv_handle );
+
+ if( i_in_bytes )
+ {
+ msg_Warn( p_filter, "failed to convert string to unicode (%m), "
+ "bytes left %u", (unsigned)i_in_bytes );
+ goto error;
+ }
+ *(uint32_t*)p_out_buffer = 0;
+ i_string_length = (i_out_bytes - i_out_bytes_left) / sizeof(uint32_t);
+ }
+
+#if defined(HAVE_FRIBIDI)
+ {
+ uint32_t *p_fribidi_string;
+ int32_t start_pos, pos = 0;
+
+ p_fribidi_string = malloc( (i_string_length + 1) * sizeof(uint32_t) );
+ if( !p_fribidi_string )
+ {
+ msg_Err( p_filter, "out of memory" );
+ goto error;
+ }
+
+ /* Do bidi conversion line-by-line */
+ while( pos < i_string_length )
+ {
+ while( pos < i_string_length )
+ {
+ i_char = psz_unicode[pos];
+ if (i_char != '\r' && i_char != '\n')
+ break;
+ p_fribidi_string[pos] = i_char;
+ ++pos;
+ }
+ start_pos = pos;
+ while( pos < i_string_length )
+ {
+ i_char = psz_unicode[pos];
+ if (i_char == '\r' || i_char == '\n')
+ break;
+ ++pos;
+ }
+ if (pos > start_pos)
+ {
+ FriBidiCharType base_dir = FRIBIDI_TYPE_LTR;
+ fribidi_log2vis((FriBidiChar*)psz_unicode + start_pos,
+ pos - start_pos,
+ &base_dir,
+ (FriBidiChar*)p_fribidi_string + start_pos,
+ 0, 0, 0);
+ }
+ }
+
+ free( psz_unicode_orig );
+ psz_unicode = psz_unicode_orig = p_fribidi_string;
+ p_fribidi_string[ i_string_length ] = 0;
+ }
+#endif
+
+ /* Calculate relative glyph positions and a bounding box for the
+ * entire string */
+ if( !(p_line = NewLine( strlen( psz_string ))) )
+ {
+ msg_Err( p_filter, "out of memory" );
+ goto error;
+ }
+ p_lines = p_line;
+ i_pen_x = i_pen_y = 0;
+ i_previous = i = 0;
+ psz_line_start = psz_unicode;
+
+#define face p_sys->p_face
+#define glyph face->glyph
+
+ while( *psz_unicode )
+ {
+ i_char = *psz_unicode++;
+ if( i_char == '\r' ) /* ignore CR chars wherever they may be */
+ {
+ continue;
+ }
+
+ if( i_char == '\n' )
+ {
+ psz_line_start = psz_unicode;
+ if( !(p_next = NewLine( strlen( psz_string ))) )
+ {
+ msg_Err( p_filter, "out of memory" );
+ goto error;
+ }
+ p_line->p_next = p_next;
p_line->i_width = line.xMax;
p_line->i_height = face->size->metrics.height >> 6;
p_line->pp_glyphs[ i ] = NULL;
+ p_line->i_alpha = i_font_alpha;
+ p_line->i_red = i_red;
+ p_line->i_green = i_green;
+ p_line->i_blue = i_blue;
p_prev = p_line;
p_line = p_next;
result.x = __MAX( result.x, line.xMax );
result.y += face->size->metrics.height >> 6;
i_pen_x = 0;
- i_previous = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
+ i_previous = i = 0;
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
i_pen_y += face->size->metrics.height >> 6;
#if 0
msg_Dbg( p_filter, "Creating new line, i is %d", i );
#endif
- i = 0;
continue;
}
i_error = FT_Load_Glyph( face, i_glyph_index, FT_LOAD_DEFAULT );
if( i_error )
{
- msg_Err( p_filter, "FT_Load_Glyph returned %d", i_error );
+ msg_Err( p_filter, "unable to render text FT_Load_Glyph returned"
+ " %d", i_error );
goto error;
}
i_error = FT_Get_Glyph( glyph, &tmp_glyph );
if( i_error )
{
- msg_Err( p_filter, "FT_Get_Glyph returned %d", i_error );
+ msg_Err( p_filter, "unable to render text FT_Get_Glyph returned "
+ "%d", i_error );
goto error;
}
FT_Glyph_Get_CBox( tmp_glyph, ft_glyph_bbox_pixels, &glyph_size );
- i_error = FT_Glyph_To_Bitmap( &tmp_glyph, ft_render_mode_normal,
- NULL, 1 );
- if( i_error ) continue;
+ i_error = FT_Glyph_To_Bitmap( &tmp_glyph, ft_render_mode_normal, 0, 1);
+ if( i_error )
+ {
+ FT_Done_Glyph( tmp_glyph );
+ continue;
+ }
p_line->pp_glyphs[ i ] = (FT_BitmapGlyph)tmp_glyph;
/* Do rest */
- line.xMax = p_line->p_glyph_pos[i].x + glyph_size.xMax - glyph_size.xMin + ((FT_BitmapGlyph)tmp_glyph)->left;
- if( line.xMax > p_filter->fmt_out.video.i_visible_width - 20 )
+ line.xMax = p_line->p_glyph_pos[i].x + glyph_size.xMax -
+ glyph_size.xMin + ((FT_BitmapGlyph)tmp_glyph)->left;
+ if( line.xMax > (int)p_filter->fmt_out.video.i_visible_width - 20 )
{
p_line->pp_glyphs[ i ] = NULL;
FreeLine( p_line );
- p_line = NewLine( psz_string );
- if( p_prev )
- {
- p_prev->p_next = p_line;
- }
- else
- {
- p_string->p_lines = p_line;
- }
+ p_line = NewLine( strlen( psz_string ));
+ if( p_prev ) p_prev->p_next = p_line;
+ else p_lines = p_line;
+
+ uint32_t *psz_unicode_saved = psz_unicode;
while( psz_unicode > psz_line_start && *psz_unicode != ' ' )
{
psz_unicode--;
}
if( psz_unicode == psz_line_start )
+ { /* try harder to break that line */
+ psz_unicode = psz_unicode_saved;
+ while( psz_unicode > psz_line_start &&
+ *psz_unicode != '_' && *psz_unicode != '/' &&
+ *psz_unicode != '\\' && *psz_unicode != '.' )
+ {
+ psz_unicode--;
+ }
+ }
+ if( psz_unicode == psz_line_start )
{
msg_Warn( p_filter, "unbreakable string" );
goto error;
}
else
{
-
*psz_unicode = '\n';
}
psz_unicode = psz_line_start;
i_pen_x = 0;
- i_previous = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
- i = 0;
+ i_previous = i = 0;
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
continue;
}
line.yMax = __MAX( line.yMax, glyph_size.yMax );
p_line->i_width = line.xMax;
p_line->i_height = face->size->metrics.height >> 6;
p_line->pp_glyphs[ i ] = NULL;
+ p_line->i_alpha = i_font_alpha;
+ p_line->i_red = i_red;
+ p_line->i_green = i_green;
+ p_line->i_blue = i_blue;
result.x = __MAX( result.x, line.xMax );
result.y += line.yMax - line.yMin;
- p_string->i_height = result.y;
- p_string->i_width = result.x;
#undef face
#undef glyph
-/* check to see whether to use the default color/opacity, or another one: */
- if( i_font_color < 0 )
- {
- p_sys->i_blue = p_sys->i_font_color & 0x000000FF;
- p_sys->i_green = ( p_sys->i_font_color & 0x0000FF00 ) >> 8;
- p_sys->i_red = ( p_sys->i_font_color & 0x00FF0000 ) >> 16;
- }
- else
- {
- p_sys->i_blue = i_font_color & 0x000000FF;
- p_sys->i_green = ( i_font_color & 0x0000FF00 ) >> 8;
- p_sys->i_red = ( i_font_color & 0x00FF0000 ) >> 16;
- }
- if( i_font_opacity < 0 )
- {
- p_sys->i_opacity = p_sys->i_font_opacity;
- }
+
+ p_region_out->i_x = p_region_in->i_x;
+ p_region_out->i_y = p_region_in->i_y;
+
+ if( config_GetInt( p_filter, "freetype-yuvp" ) )
+ Render( p_filter, p_region_out, p_lines, result.x, result.y );
else
- {
- p_sys->i_opacity = (uint8_t)( i_font_opacity & 0x000000FF );
- }
+ RenderYUVA( p_filter, p_region_out, p_lines, result.x, result.y );
- p_res = Render( p_filter, p_subpic, p_string, p_sys->i_opacity,
- p_sys->i_red, p_sys->i_green, p_sys->i_blue );
- FreeString( p_string );
- if( psz_unicode_orig ) free( psz_unicode_orig );
- return p_res;
+ free( psz_unicode_orig );
+ FreeLines( p_lines );
+ return VLC_SUCCESS;
error:
- FreeString( p_string );
- if( p_subpic ) p_filter->pf_sub_buffer_del( p_filter, p_subpic );
- if( psz_unicode_orig ) free( psz_unicode_orig );
- return NULL;
+ free( psz_unicode_orig );
+ FreeLines( p_lines );
+ return VLC_EGENERIC;
}
-static void FreeLine( line_desc_t *p_line )
+#ifdef HAVE_FONTCONFIG
+static ft_style_t *CreateStyle( char *psz_fontname, int i_font_size,
+ uint32_t i_font_color, uint32_t i_karaoke_bg_color, vlc_bool_t b_bold,
+ vlc_bool_t b_italic, vlc_bool_t b_uline )
{
- unsigned int i;
- for( i = 0; p_line->pp_glyphs[ i ] != NULL; i++ )
+ ft_style_t *p_style = malloc( sizeof( ft_style_t ));
+
+ if( p_style )
{
- FT_Done_Glyph( (FT_Glyph)p_line->pp_glyphs[ i ] );
+ p_style->i_font_size = i_font_size;
+ p_style->i_font_color = i_font_color;
+ p_style->i_karaoke_bg_color = i_karaoke_bg_color;
+ p_style->b_italic = b_italic;
+ p_style->b_bold = b_bold;
+ p_style->b_underline = b_uline;
+
+ p_style->psz_fontname = strdup( psz_fontname );
}
- free( p_line->pp_glyphs );
- free( p_line->p_glyph_pos );
- free( p_line );
+ return p_style;
}
-static void FreeString( subpicture_data_t *p_string )
+static void DeleteStyle( ft_style_t *p_style )
{
- line_desc_t *p_line, *p_next;
-
- if( !p_string ) return;
-
- for( p_line = p_string->p_lines; p_line != NULL; p_line = p_next )
+ if( p_style )
{
- p_next = p_line->p_next;
- FreeLine( p_line );
+ free( p_style->psz_fontname );
+ free( p_style );
}
-
- free( p_string->psz_text );
- free( p_string );
}
-static line_desc_t *NewLine( byte_t *psz_string )
+static vlc_bool_t StyleEquals( ft_style_t *s1, ft_style_t *s2 )
{
- int i_count;
- line_desc_t *p_line = malloc( sizeof(line_desc_t) );
- if( !p_line )
+ if( !s1 || !s2 )
+ return VLC_FALSE;
+ if( s1 == s2 )
+ return VLC_TRUE;
+
+ if(( s1->i_font_size == s2->i_font_size ) &&
+ ( s1->i_font_color == s2->i_font_color ) &&
+ ( s1->b_italic == s2->b_italic ) &&
+ ( s1->b_bold == s2->b_bold ) &&
+ ( s1->b_underline == s2->b_underline ) &&
+ ( !strcmp( s1->psz_fontname, s2->psz_fontname )))
{
- return NULL;
+ return VLC_TRUE;
}
- p_line->i_height = 0;
- p_line->i_width = 0;
- p_line->p_next = NULL;
+ return VLC_FALSE;
+}
- /* We don't use CountUtf8Characters() here because we are not acutally
- * sure the string is utf8. Better be safe than sorry. */
- i_count = strlen( psz_string );
+static int PushFont( font_stack_t **p_font, const char *psz_name, int i_size,
+ uint32_t i_color, uint32_t i_karaoke_bg_color )
+{
+ font_stack_t *p_new;
- p_line->pp_glyphs = malloc( sizeof(FT_BitmapGlyph)
- * ( i_count + 1 ) );
- if( p_line->pp_glyphs == NULL )
- {
- free( p_line );
- return NULL;
- }
- p_line->pp_glyphs[0] = NULL;
+ if( !p_font )
+ return VLC_EGENERIC;
- p_line->p_glyph_pos = malloc( sizeof( FT_Vector )
- * i_count + 1 );
- if( p_line->p_glyph_pos == NULL )
- {
- free( p_line->pp_glyphs );
- free( p_line );
- return NULL;
- }
+ p_new = malloc( sizeof( font_stack_t ) );
+ if( ! p_new )
+ return VLC_ENOMEM;
+
+ p_new->p_next = NULL;
+
+ if( psz_name )
+ p_new->psz_name = strdup( psz_name );
+ else
+ p_new->psz_name = NULL;
+
+ p_new->i_size = i_size;
+ p_new->i_color = i_color;
+ p_new->i_karaoke_bg_color = i_karaoke_bg_color;
+
+ if( !*p_font )
+ {
+ *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 )
+ ;
+
+ 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, uint32_t *i_karaoke_bg_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;
+ *i_karaoke_bg_color = p_last->i_karaoke_bg_color;
+
+ return VLC_SUCCESS;
+}
+
+static void IconvText( filter_t *p_filter, const char *psz_string,
+ uint32_t *i_string_length, uint32_t **ppsz_unicode )
+{
+ vlc_iconv_t iconv_handle = (vlc_iconv_t)(-1);
+
+ /* If memory hasn't been allocated for our output string, allocate it here
+ * - the calling function must now be responsible for freeing it.
+ */
+ if( !*ppsz_unicode )
+ *ppsz_unicode = (uint32_t *)
+ malloc( (strlen( psz_string ) + 1) * sizeof( uint32_t ));
+
+ /* We don't need to handle a NULL pointer in *ppsz_unicode
+ * if we are instead testing for a non NULL value like we are here */
+
+ if( *ppsz_unicode )
+ {
+#if defined(WORDS_BIGENDIAN)
+ iconv_handle = vlc_iconv_open( "UCS-4BE", "UTF-8" );
+#else
+ iconv_handle = vlc_iconv_open( "UCS-4LE", "UTF-8" );
+#endif
+ if( iconv_handle != (vlc_iconv_t)-1 )
+ {
+ char *p_in_buffer, *p_out_buffer;
+ size_t i_in_bytes, i_out_bytes, i_out_bytes_left, i_ret;
+ i_in_bytes = strlen( psz_string );
+ i_out_bytes = i_in_bytes * sizeof( uint32_t );
+ i_out_bytes_left = i_out_bytes;
+ p_in_buffer = (char *) psz_string;
+ p_out_buffer = (char *) *ppsz_unicode;
+ i_ret = vlc_iconv( iconv_handle, (const char**)&p_in_buffer,
+ &i_in_bytes, &p_out_buffer, &i_out_bytes_left );
+
+ vlc_iconv_close( iconv_handle );
+
+ if( i_in_bytes )
+ {
+ msg_Warn( p_filter, "failed to convert string to unicode (%m), "
+ "bytes left %u", (unsigned)i_in_bytes );
+ }
+ else
+ {
+ *(uint32_t*)p_out_buffer = 0;
+ *i_string_length =
+ (i_out_bytes - i_out_bytes_left) / sizeof(uint32_t);
+ }
+ }
+ else
+ {
+ msg_Warn( p_filter, "unable to do conversion" );
+ }
+ }
+}
+
+static ft_style_t *GetStyleFromFontStack( filter_sys_t *p_sys,
+ font_stack_t **p_fonts, vlc_bool_t b_bold, vlc_bool_t b_italic,
+ vlc_bool_t b_uline )
+{
+ ft_style_t *p_style = NULL;
+
+ char *psz_fontname = NULL;
+ uint32_t i_font_color = p_sys->i_font_color & 0x00ffffff;
+ uint32_t i_karaoke_bg_color = i_font_color;
+ int i_font_size = p_sys->i_font_size;
+
+ if( VLC_SUCCESS == PeekFont( p_fonts, &psz_fontname, &i_font_size,
+ &i_font_color, &i_karaoke_bg_color ))
+ {
+ p_style = CreateStyle( psz_fontname, i_font_size, i_font_color,
+ i_karaoke_bg_color, b_bold, b_italic, b_uline );
+ }
+ return p_style;
+}
+
+static int RenderTag( filter_t *p_filter, FT_Face p_face, int i_font_color,
+ vlc_bool_t b_uline, int i_karaoke_bgcolor,
+ line_desc_t *p_line, uint32_t *psz_unicode,
+ int *pi_pen_x, int i_pen_y, int *pi_start,
+ FT_Vector *p_result )
+{
+ FT_BBox line;
+ int i_yMin, i_yMax;
+ int i;
+ vlc_bool_t b_first_on_line = VLC_TRUE;
+
+ int i_previous = 0;
+ int i_pen_x_start = *pi_pen_x;
+
+ uint32_t *psz_unicode_start = psz_unicode;
+
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
+
+ /* Account for part of line already in position */
+ for( i=0; i<*pi_start; i++ )
+ {
+ FT_BBox glyph_size;
+
+ FT_Glyph_Get_CBox( (FT_Glyph) p_line->pp_glyphs[ i ],
+ ft_glyph_bbox_pixels, &glyph_size );
+
+ line.xMax = p_line->p_glyph_pos[ i ].x + glyph_size.xMax -
+ glyph_size.xMin + p_line->pp_glyphs[ i ]->left;
+ line.yMax = __MAX( line.yMax, glyph_size.yMax );
+ line.yMin = __MIN( line.yMin, glyph_size.yMin );
+ }
+ i_yMin = line.yMin;
+ i_yMax = line.yMax;
+
+ if( line.xMax > 0 )
+ b_first_on_line = VLC_FALSE;
+
+ while( *psz_unicode && ( *psz_unicode != '\n' ) )
+ {
+ FT_BBox glyph_size;
+ FT_Glyph tmp_glyph;
+ int i_error;
+
+ int i_glyph_index = FT_Get_Char_Index( p_face, *psz_unicode++ );
+ if( FT_HAS_KERNING( p_face ) && i_glyph_index
+ && i_previous )
+ {
+ FT_Vector delta;
+ FT_Get_Kerning( p_face, i_previous, i_glyph_index,
+ ft_kerning_default, &delta );
+ *pi_pen_x += delta.x >> 6;
+ }
+ p_line->p_glyph_pos[ i ].x = *pi_pen_x;
+ p_line->p_glyph_pos[ i ].y = i_pen_y;
+
+ i_error = FT_Load_Glyph( p_face, i_glyph_index, FT_LOAD_DEFAULT );
+ if( i_error )
+ {
+ msg_Err( p_filter,
+ "unable to render text FT_Load_Glyph returned %d", i_error );
+ p_line->pp_glyphs[ i ] = NULL;
+ return VLC_EGENERIC;
+ }
+ i_error = FT_Get_Glyph( p_face->glyph, &tmp_glyph );
+ if( i_error )
+ {
+ msg_Err( p_filter,
+ "unable to render text FT_Get_Glyph returned %d", i_error );
+ p_line->pp_glyphs[ i ] = NULL;
+ return VLC_EGENERIC;
+ }
+ FT_Glyph_Get_CBox( tmp_glyph, ft_glyph_bbox_pixels, &glyph_size );
+ i_error = FT_Glyph_To_Bitmap( &tmp_glyph, FT_RENDER_MODE_NORMAL, 0, 1);
+ if( i_error )
+ {
+ FT_Done_Glyph( tmp_glyph );
+ continue;
+ }
+ if( b_uline )
+ {
+ float aOffset = FT_FLOOR(FT_MulFix(p_face->underline_position,
+ p_face->size->metrics.y_scale));
+ float aSize = FT_CEIL(FT_MulFix(p_face->underline_thickness,
+ p_face->size->metrics.y_scale));
+
+ p_line->pi_underline_offset[ i ] =
+ ( aOffset < 0 ) ? -aOffset : aOffset;
+ p_line->pi_underline_thickness[ i ] =
+ ( aSize < 0 ) ? -aSize : aSize;
+ }
+ p_line->pp_glyphs[ i ] = (FT_BitmapGlyph)tmp_glyph;
+ p_line->p_fg_rgb[ i ] = i_font_color & 0x00ffffff;
+ p_line->p_bg_rgb[ i ] = i_karaoke_bgcolor & 0x00ffffff;
+ p_line->p_fg_bg_ratio[ i ] = 0x00;
+
+ line.xMax = p_line->p_glyph_pos[i].x + glyph_size.xMax -
+ glyph_size.xMin + ((FT_BitmapGlyph)tmp_glyph)->left;
+ if( line.xMax > (int)p_filter->fmt_out.video.i_visible_width - 20 )
+ {
+ while( --i > *pi_start )
+ {
+ FT_Done_Glyph( (FT_Glyph)p_line->pp_glyphs[ i ] );
+ }
+
+ while( psz_unicode > psz_unicode_start && *psz_unicode != ' ' )
+ {
+ psz_unicode--;
+ }
+ if( psz_unicode == psz_unicode_start )
+ {
+ if( b_first_on_line )
+ {
+ msg_Warn( p_filter, "unbreakable string" );
+ p_line->pp_glyphs[ i ] = NULL;
+ return VLC_EGENERIC;
+ }
+ *pi_pen_x = i_pen_x_start;
+
+ p_line->i_width = line.xMax;
+ p_line->i_height = __MAX( p_line->i_height,
+ p_face->size->metrics.height >> 6 );
+ p_line->pp_glyphs[ i ] = NULL;
+
+ p_result->x = __MAX( p_result->x, line.xMax );
+ p_result->y = __MAX( p_result->y, __MAX( p_line->i_height,
+ i_yMax - i_yMin ) );
+
+ *pi_start = i;
+ return VLC_SUCCESS;
+ }
+ else
+ {
+ *psz_unicode = '\n';
+ }
+ psz_unicode = psz_unicode_start;
+ *pi_pen_x = i_pen_x_start;
+ i_previous = 0;
+
+ line.yMax = i_yMax;
+ line.yMin = i_yMin;
+
+ continue;
+ }
+ line.yMax = __MAX( line.yMax, glyph_size.yMax );
+ line.yMin = __MIN( line.yMin, glyph_size.yMin );
+
+ i_previous = i_glyph_index;
+ *pi_pen_x += p_face->glyph->advance.x >> 6;
+ i++;
+ }
+ p_line->i_width = line.xMax;
+ p_line->i_height = __MAX( p_line->i_height,
+ p_face->size->metrics.height >> 6 );
+ p_line->pp_glyphs[ i ] = NULL;
+
+ p_result->x = __MAX( p_result->x, line.xMax );
+ p_result->y = __MAX( p_result->y, __MAX( p_line->i_height,
+ line.yMax - line.yMin ) );
+
+ *pi_start = i;
+
+ /* Get rid of any text processed - if necessary repositioning
+ * at the start of a new line of text
+ */
+ if( !*psz_unicode )
+ {
+ *psz_unicode_start = '\0';
+ }
+ else if( psz_unicode > psz_unicode_start )
+ {
+ for( i=0; psz_unicode[ i ]; i++ )
+ psz_unicode_start[ i ] = psz_unicode[ i ];
+ psz_unicode_start[ i ] = '\0';
+ }
+
+ 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;
+ uint32_t i_karaoke_bg_color = 0x00ffffff;
+ 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,
+ &i_karaoke_bg_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),
+ i_karaoke_bg_color );
+
+ free( psz_fontname );
+
+ return rv;
+}
+
+static void SetupLine( filter_t *p_filter, const char *psz_text_in,
+ uint32_t **psz_text_out, uint32_t *pi_runs,
+ uint32_t **ppi_run_lengths, ft_style_t ***ppp_styles,
+ ft_style_t *p_style )
+{
+ uint32_t i_string_length = 0;
+
+ IconvText( p_filter, psz_text_in, &i_string_length, psz_text_out );
+ *psz_text_out += i_string_length;
+
+ if( ppp_styles && ppi_run_lengths )
+ {
+ (*pi_runs)++;
+
+ if( *ppp_styles )
+ {
+ *ppp_styles = (ft_style_t **)
+ realloc( *ppp_styles, *pi_runs * sizeof( ft_style_t * ) );
+ }
+ else if( *pi_runs == 1 )
+ {
+ *ppp_styles = (ft_style_t **)
+ malloc( *pi_runs * sizeof( ft_style_t * ) );
+ }
+
+ /* We have just malloc'ed this memory successfully -
+ * *pi_runs HAS to be within the memory area of *ppp_styles */
+ if( *ppp_styles )
+ {
+ (*ppp_styles)[ *pi_runs - 1 ] = p_style;
+ p_style = NULL;
+ }
+
+ if( *ppi_run_lengths )
+ {
+ *ppi_run_lengths = (uint32_t *)
+ realloc( *ppi_run_lengths, *pi_runs * sizeof( uint32_t ) );
+ }
+ else if( *pi_runs == 1 )
+ {
+ *ppi_run_lengths = (uint32_t *)
+ malloc( *pi_runs * sizeof( uint32_t ) );
+ }
+
+ /* same remarks here */
+ if( *ppi_run_lengths )
+ {
+ (*ppi_run_lengths)[ *pi_runs - 1 ] = i_string_length;
+ }
+ }
+ /* If we couldn't use the p_style argument due to memory allocation
+ * problems above, release it here.
+ */
+ if( p_style ) DeleteStyle( p_style );
+}
+
+static void SetKaraokeLen( uint32_t i_runs, uint32_t *pi_run_lengths,
+ uint32_t i_k_runs, uint32_t *pi_k_run_lengths )
+{
+ /* Karaoke tags _PRECEDE_ the text they specify a duration
+ * for, therefore we are working out the length for the
+ * previous tag, and first time through we have nothing
+ */
+ if( pi_k_run_lengths )
+ {
+ int i_chars = 0;
+ uint32_t i;
+
+ /* Work out how many characters are presently in the string
+ */
+ for( i = 0; i < i_runs; i++ )
+ i_chars += pi_run_lengths[ i ];
+
+ /* Subtract away those we've already allocated to other
+ * karaoke tags
+ */
+ for( i = 0; i < i_k_runs; i++ )
+ i_chars -= pi_k_run_lengths[ i ];
+
+ pi_k_run_lengths[ i_k_runs - 1 ] = i_chars;
+ }
+}
+
+static void SetupKaraoke( xml_reader_t *p_xml_reader, uint32_t *pi_k_runs,
+ uint32_t **ppi_k_run_lengths,
+ uint32_t **ppi_k_durations )
+{
+ 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 &&
+ !strcasecmp( "t", psz_name ) )
+ {
+ if( ppi_k_durations && ppi_k_run_lengths )
+ {
+ (*pi_k_runs)++;
+
+ if( *ppi_k_durations )
+ {
+ *ppi_k_durations = (uint32_t *)
+ realloc( *ppi_k_durations,
+ *pi_k_runs * sizeof( uint32_t ) );
+ }
+ else if( *pi_k_runs == 1 )
+ {
+ *ppi_k_durations = (uint32_t *)
+ malloc( *pi_k_runs * sizeof( uint32_t ) );
+ }
+
+ if( *ppi_k_run_lengths )
+ {
+ *ppi_k_run_lengths = (uint32_t *)
+ realloc( *ppi_k_run_lengths,
+ *pi_k_runs * sizeof( uint32_t ) );
+ }
+ else if( *pi_k_runs == 1 )
+ {
+ *ppi_k_run_lengths = (uint32_t *)
+ malloc( *pi_k_runs * sizeof( uint32_t ) );
+ }
+ if( *ppi_k_durations )
+ (*ppi_k_durations)[ *pi_k_runs - 1 ] = atoi( psz_value );
+
+ if( *ppi_k_run_lengths )
+ (*ppi_k_run_lengths)[ *pi_k_runs - 1 ] = 0;
+ }
+ }
+ free( psz_name );
+ free( psz_value );
+ }
+}
+
+static int ProcessNodes( filter_t *p_filter,
+ xml_reader_t *p_xml_reader,
+ text_style_t *p_font_style,
+ uint32_t *psz_text,
+ int *pi_len,
+
+ uint32_t *pi_runs,
+ uint32_t **ppi_run_lengths,
+ ft_style_t ***ppp_styles,
+
+ vlc_bool_t b_karaoke,
+ uint32_t *pi_k_runs,
+ uint32_t **ppi_k_run_lengths,
+ uint32_t **ppi_k_durations )
+{
+ int rv = VLC_SUCCESS;
+ filter_sys_t *p_sys = p_filter->p_sys;
+ uint32_t *psz_text_orig = psz_text;
+ font_stack_t *p_fonts = NULL;
+ vlc_value_t val;
+ int i_scale = 1000;
+
+ char *psz_node = NULL;
+
+ vlc_bool_t b_italic = VLC_FALSE;
+ vlc_bool_t b_bold = VLC_FALSE;
+ vlc_bool_t b_uline = VLC_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),
+ (p_font_style->i_karaoke_background_color & 0xffffff) |
+ ((p_font_style->i_karaoke_background_alpha & 0xff) << 24));
+
+ if( p_font_style->i_style_flags & STYLE_BOLD )
+ b_bold = VLC_TRUE;
+ if( p_font_style->i_style_flags & STYLE_ITALIC )
+ b_italic = VLC_TRUE;
+ if( p_font_style->i_style_flags & STYLE_UNDERLINE )
+ b_uline = VLC_TRUE;
+ }
+ else
+ {
+ rv = PushFont( &p_fonts,
+ FC_DEFAULT_FONT,
+ p_sys->i_font_size,
+ 0x00ffffff,
+ 0x00ffffff );
+ }
+ 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 = VLC_FALSE;
+ else if( !strcasecmp( "i", psz_node ) )
+ b_italic = VLC_FALSE;
+ else if( !strcasecmp( "u", psz_node ) )
+ b_uline = VLC_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 = VLC_TRUE;
+ else if( !strcasecmp( "i", psz_node ) )
+ b_italic = VLC_TRUE;
+ else if( !strcasecmp( "u", psz_node ) )
+ b_uline = VLC_TRUE;
+ else if( !strcasecmp( "br", psz_node ) )
+ {
+ SetupLine( p_filter, "\n", &psz_text,
+ pi_runs, ppi_run_lengths, ppp_styles,
+ GetStyleFromFontStack( p_sys,
+ &p_fonts,
+ b_bold,
+ b_italic,
+ b_uline ) );
+ }
+ else if( !strcasecmp( "k", psz_node ) )
+ {
+ /* Only valid in karaoke */
+ if( b_karaoke )
+ {
+ if( *pi_k_runs > 0 )
+ {
+ SetKaraokeLen( *pi_runs, *ppi_run_lengths,
+ *pi_k_runs, *ppi_k_run_lengths );
+ }
+ SetupKaraoke( p_xml_reader, pi_k_runs,
+ ppi_k_run_lengths, ppi_k_durations );
+ }
+ }
+
+ free( psz_node );
+ }
+ break;
+ case XML_READER_TEXT:
+ psz_node = xml_ReaderValue( p_xml_reader );
+ if( psz_node )
+ {
+ /* 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 " );
+ }
+ SetupLine( p_filter, psz_node, &psz_text,
+ pi_runs, ppi_run_lengths, ppp_styles,
+ GetStyleFromFontStack( p_sys,
+ &p_fonts,
+ b_bold,
+ b_italic,
+ b_uline ) );
+ free( psz_node );
+ }
+ break;
+ }
+ if( rv != VLC_SUCCESS )
+ {
+ psz_text = psz_text_orig;
+ break;
+ }
+ }
+ if( b_karaoke )
+ {
+ SetKaraokeLen( *pi_runs, *ppi_run_lengths,
+ *pi_k_runs, *ppi_k_run_lengths );
+ }
+
+ *pi_len = psz_text - psz_text_orig;
+
+ while( VLC_SUCCESS == PopFont( &p_fonts ) );
+
+ return rv;
+}
+
+static int CheckForEmbeddedFont( filter_sys_t *p_sys, FT_Face *pp_face, ft_style_t *p_style )
+{
+ int k;
+
+ for( k=0; k < p_sys->i_font_attachments; k++ )
+ {
+ input_attachment_t *p_attach = p_sys->pp_font_attachments[k];
+ int i_font_idx = 0;
+ FT_Face p_face = NULL;
+
+ while( 0 == FT_New_Memory_Face( p_sys->p_library,
+ p_attach->p_data,
+ p_attach->i_data,
+ i_font_idx,
+ &p_face ))
+ {
+ if( p_face )
+ {
+ vlc_bool_t match = !strcasecmp( p_face->family_name,
+ p_style->psz_fontname );
+
+ if( p_face->style_flags & FT_STYLE_FLAG_BOLD )
+ match = match && p_style->b_bold;
+ else
+ match = match && !p_style->b_bold;
+
+ if( p_face->style_flags & FT_STYLE_FLAG_ITALIC )
+ match = match && p_style->b_italic;
+ else
+ match = match && !p_style->b_italic;
+
+ if( match )
+ {
+ *pp_face = p_face;
+ return VLC_SUCCESS;
+ }
+
+ FT_Done_Face( p_face );
+ }
+ i_font_idx++;
+ }
+ }
+ return VLC_EGENERIC;
+}
+
+static int CheckIfFontBuildComplete( filter_t *p_filter )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+ vlc_object_t *p_fb = vlc_object_find_name( p_filter->p_libvlc,
+ "fontlist builder",
+ FIND_CHILD );
+ if( p_fb )
+ {
+ vlc_mutex_t *lock = var_AcquireMutex( "fontbuilder" );
+ vlc_value_t val;
+
+ if( VLC_SUCCESS == var_Get( p_fb, "build-done", &val ))
+ {
+ p_sys->b_fontconfig_ok = val.b_bool;
+
+ if( p_sys->b_fontconfig_ok )
+ {
+ FcInit();
+ p_sys->p_fontconfig = FcConfigGetCurrent();
+ }
+ else
+ msg_Dbg( p_filter, "Font Build still not complete" );
+ }
+ vlc_mutex_unlock( lock );
+ vlc_object_release( p_fb );
+
+ return VLC_SUCCESS;
+ }
+ return VLC_EGENERIC;
+}
+
+static int ProcessLines( filter_t *p_filter,
+ uint32_t *psz_text,
+ int i_len,
+
+ uint32_t i_runs,
+ uint32_t *pi_run_lengths,
+ ft_style_t **pp_styles,
+ line_desc_t **pp_lines,
+
+ FT_Vector *p_result,
+
+ vlc_bool_t b_karaoke,
+ uint32_t i_k_runs,
+ uint32_t *pi_k_run_lengths,
+ uint32_t *pi_k_durations )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+ ft_style_t **pp_char_styles;
+ int *p_new_positions = NULL;
+ int8_t *p_levels = NULL;
+ uint8_t *pi_karaoke_bar = NULL;
+ uint32_t i, j, k;
+ int i_prev;
+
+ /* Assign each character in the text string its style explicitly, so that
+ * after the characters have been shuffled around by Fribidi, we can re-apply
+ * the styles, and to simplify the calculation of runs within a line.
+ */
+ pp_char_styles = (ft_style_t **) malloc( i_len * sizeof( ft_style_t * ));
+ if( !pp_char_styles )
+ return VLC_ENOMEM;
+
+ if( b_karaoke )
+ {
+ pi_karaoke_bar = (uint8_t *) malloc( i_len * sizeof( uint8_t ));
+ /* If we can't allocate sufficient memory for karaoke, continue anyway -
+ * we just won't be able to display the progress bar; at least we'll
+ * get the text.
+ */
+ }
+
+ i = 0;
+ for( j = 0; j < i_runs; j++ )
+ for( k = 0; k < pi_run_lengths[ j ]; k++ )
+ pp_char_styles[ i++ ] = pp_styles[ j ];
+
+#if defined(HAVE_FRIBIDI)
+ {
+ ft_style_t **pp_char_styles_new;
+ int *p_old_positions;
+ uint32_t *p_fribidi_string;
+ int start_pos, pos = 0;
+
+ pp_char_styles_new = (ft_style_t **)
+ malloc( i_len * sizeof( ft_style_t * ));
+
+ p_fribidi_string = (uint32_t *)
+ malloc( (i_len + 1) * sizeof(uint32_t) );
+ p_old_positions = (int *)
+ malloc( (i_len + 1) * sizeof( int ) );
+ p_new_positions = (int *)
+ malloc( (i_len + 1) * sizeof( int ) );
+ p_levels = (int8_t *)
+ malloc( (i_len + 1) * sizeof( int8_t ) );
+
+ if( ! pp_char_styles_new ||
+ ! p_fribidi_string ||
+ ! p_old_positions ||
+ ! p_new_positions ||
+ ! p_levels )
+ {
+ msg_Err( p_filter, "out of memory" );
+ free( p_levels );
+ free( p_old_positions );
+ free( p_new_positions );
+ free( p_fribidi_string );
+ free( pp_char_styles_new );
+ free( pi_karaoke_bar );
+
+ free( pp_char_styles );
+ return VLC_ENOMEM;
+ }
+
+ /* Do bidi conversion line-by-line */
+ while(pos < i_len)
+ {
+ while(pos < i_len) {
+ if (psz_text[pos] != '\n')
+ break;
+ p_fribidi_string[pos] = psz_text[pos];
+ pp_char_styles_new[pos] = pp_char_styles[pos];
+ p_new_positions[pos] = pos;
+ p_levels[pos] = 0;
+ ++pos;
+ }
+ start_pos = pos;
+ while(pos < i_len) {
+ if (psz_text[pos] == '\n')
+ break;
+ ++pos;
+ }
+ if (pos > start_pos)
+ {
+ FriBidiCharType base_dir = FRIBIDI_TYPE_LTR;
+ fribidi_log2vis((FriBidiChar*)psz_text + start_pos,
+ pos - start_pos, &base_dir,
+ (FriBidiChar*)p_fribidi_string + start_pos,
+ p_new_positions + start_pos,
+ p_old_positions,
+ p_levels + start_pos );
+ for( j = (uint32_t) start_pos; j < (uint32_t) pos; j++ )
+ {
+ pp_char_styles_new[ j ] = pp_char_styles[ start_pos +
+ p_old_positions[ j - start_pos ] ];
+ p_new_positions[ j ] += start_pos;
+ }
+ }
+ }
+ free( p_old_positions );
+ free( pp_char_styles );
+ pp_char_styles = pp_char_styles_new;
+ psz_text = p_fribidi_string;
+ p_fribidi_string[ i_len ] = 0;
+ }
+#endif
+ /* Work out the karaoke */
+ if( pi_karaoke_bar )
+ {
+ int64_t i_last_duration = 0;
+ int64_t i_duration = 0;
+ int64_t i_start_pos = 0;
+ int64_t i_elapsed = var_GetTime( p_filter, "spu-elapsed" ) / 1000;
+
+ for( k = 0; k< i_k_runs; k++ )
+ {
+ double fraction = 0.0;
+
+ i_duration += pi_k_durations[ k ];
+
+ if( i_duration < i_elapsed )
+ {
+ /* Completely finished this run-length -
+ * let it render normally */
+
+ fraction = 1.0;
+ }
+ else if( i_elapsed < i_last_duration )
+ {
+ /* Haven't got up to this segment yet -
+ * render it completely in karaoke BG mode */
+
+ fraction = 0.0;
+ }
+ else
+ {
+ /* Partway through this run */
+
+ fraction = (double)(i_elapsed - i_last_duration) /
+ (double)pi_k_durations[ k ];
+ }
+ for( i = 0; i < pi_k_run_lengths[ k ]; i++ )
+ {
+ double shade = pi_k_run_lengths[ k ] * fraction;
+
+ if( p_new_positions )
+ j = p_new_positions[ i_start_pos + i ];
+ else
+ j = i_start_pos + i;
+
+ if( i < (uint32_t)shade )
+ pi_karaoke_bar[ j ] = 0xff;
+ else if( (double)i > shade )
+ pi_karaoke_bar[ j ] = 0x00;
+ else
+ {
+ shade -= (int)shade;
+ pi_karaoke_bar[ j ] = ((int)(shade * 128.0) & 0x7f) |
+ ((p_levels ? (p_levels[ j ] % 2) : 0 ) << 7);
+ }
+ }
+
+ i_last_duration = i_duration;
+ i_start_pos += pi_k_run_lengths[ k ];
+ }
+ }
+ free( p_levels );
+ free( p_new_positions );
+
+ FT_Vector tmp_result;
+
+ line_desc_t *p_line = NULL;
+ line_desc_t *p_prev = NULL;
+
+ int i_pen_x = 0;
+ int i_pen_y = 0;
+ int i_posn = 0;
+
+ p_result->x = p_result->y = 0;
+ tmp_result.x = tmp_result.y = 0;
+
+ i_prev = 0;
+ for( k = 0; k <= (uint32_t) i_len; k++ )
+ {
+ if( ( k == (uint32_t) i_len ) ||
+ ( ( k > 0 ) &&
+ !StyleEquals( pp_char_styles[ k ], pp_char_styles[ k - 1] ) ) )
+ {
+ ft_style_t *p_style = pp_char_styles[ k - 1 ];
+
+ /* End of the current style run */
+ FT_Face p_face = NULL;
+ int i_idx = 0;
+
+ /* Look for a match amongst our attachments first */
+ CheckForEmbeddedFont( p_sys, &p_face, p_style );
+
+ if( !p_sys->b_fontconfig_ok )
+ {
+ if( VLC_EGENERIC == CheckIfFontBuildComplete( p_filter ))
+ msg_Err( p_filter, "Can't find FontBuilder thread!" );
+ }
+
+ if( ! p_face && p_sys->b_fontconfig_ok )
+ {
+ char *psz_fontfile;
+ vlc_mutex_lock( &p_sys->fontconfig_lock );
+
+ psz_fontfile = FontConfig_Select( p_sys->p_fontconfig,
+ p_style->psz_fontname,
+ p_style->b_bold,
+ p_style->b_italic,
+ &i_idx );
+ vlc_mutex_unlock( &p_sys->fontconfig_lock );
+
+ if( psz_fontfile && ! *psz_fontfile )
+ {
+ msg_Warn( p_filter, "Fontconfig was unable to find a font: \"%s\" %s"
+ " so using default font", p_style->psz_fontname,
+ ((p_style->b_bold && p_style->b_italic) ? "(Bold,Italic)" :
+ (p_style->b_bold ? "(Bold)" :
+ (p_style->b_italic ? "(Italic)" : ""))) );
+ free( psz_fontfile );
+ psz_fontfile = NULL;
+ }
+
+ if( psz_fontfile )
+ {
+ if( FT_New_Face( p_sys->p_library,
+ psz_fontfile, i_idx, &p_face ) )
+ {
+ free( psz_fontfile );
+ free( pp_char_styles );
+#if defined(HAVE_FRIBIDI)
+ free( psz_text );
+#endif
+ free( pi_karaoke_bar );
+ return VLC_EGENERIC;
+ }
+ free( psz_fontfile );
+ }
+ }
+ if( p_face &&
+ FT_Select_Charmap( p_face, ft_encoding_unicode ) )
+ {
+ /* We've loaded a font face which is unhelpful for actually
+ * rendering text - fallback to the default one.
+ */
+ FT_Done_Face( p_face );
+ p_face = NULL;
+ }
+
+ if( FT_Select_Charmap( p_face ? p_face : p_sys->p_face,
+ ft_encoding_unicode ) ||
+ FT_Set_Pixel_Sizes( p_face ? p_face : p_sys->p_face, 0,
+ p_style->i_font_size ) )
+ {
+ if( p_face ) FT_Done_Face( p_face );
+ free( pp_char_styles );
+#if defined(HAVE_FRIBIDI)
+ free( psz_text );
+#endif
+ free( pi_karaoke_bar );
+ return VLC_EGENERIC;
+ }
+ p_sys->i_use_kerning =
+ FT_HAS_KERNING( ( p_face ? p_face : p_sys->p_face ) );
+
+
+ uint32_t *psz_unicode = (uint32_t *)
+ malloc( (k - i_prev + 1) * sizeof( uint32_t ));
+ if( !psz_unicode )
+ {
+ msg_Err( p_filter, "out of memory" );
+ if( p_face ) FT_Done_Face( p_face );
+ free( pp_char_styles );
+ free( psz_unicode );
+#if defined(HAVE_FRIBIDI)
+ free( psz_text );
+#endif
+ free( pi_karaoke_bar );
+ return VLC_ENOMEM;
+ }
+ memcpy( psz_unicode, psz_text + i_prev,
+ sizeof( uint32_t ) * ( k - i_prev ) );
+ psz_unicode[ k - i_prev ] = 0;
+ while( *psz_unicode )
+ {
+ if( !p_line )
+ {
+ if( !(p_line = NewLine( i_len - i_prev)) )
+ {
+ msg_Err( p_filter, "out of memory" );
+ if( p_face ) FT_Done_Face( p_face );
+ free( pp_char_styles );
+ free( psz_unicode );
+#if defined(HAVE_FRIBIDI)
+ free( psz_text );
+#endif
+ free( pi_karaoke_bar );
+ return VLC_ENOMEM;
+ }
+ /* New Color mode only works in YUVA rendering mode --
+ * (RGB mode has palette constraints on it). We therefore
+ * need to populate the legacy colour fields also.
+ */
+ p_line->b_new_color_mode = VLC_TRUE;
+ p_line->i_alpha = ( p_style->i_font_color & 0xff000000 ) >> 24;
+ p_line->i_red = ( p_style->i_font_color & 0x00ff0000 ) >> 16;
+ p_line->i_green = ( p_style->i_font_color & 0x0000ff00 ) >> 8;
+ p_line->i_blue = ( p_style->i_font_color & 0x000000ff );
+ p_line->p_next = NULL;
+ i_pen_x = 0;
+ i_pen_y += tmp_result.y;
+ tmp_result.x = 0;
+ tmp_result.y = 0;
+ i_posn = 0;
+ if( p_prev ) p_prev->p_next = p_line;
+ else *pp_lines = p_line;
+ }
+
+ if( RenderTag( p_filter, p_face ? p_face : p_sys->p_face,
+ p_style->i_font_color, p_style->b_underline,
+ p_style->i_karaoke_bg_color,
+ p_line, psz_unicode, &i_pen_x, i_pen_y, &i_posn,
+ &tmp_result ) != VLC_SUCCESS )
+ {
+ if( p_face ) FT_Done_Face( p_face );
+ free( pp_char_styles );
+ free( psz_unicode );
+#if defined(HAVE_FRIBIDI)
+ free( psz_text );
+#endif
+ free( pi_karaoke_bar );
+ return VLC_EGENERIC;
+ }
+
+ if( *psz_unicode )
+ {
+ p_result->x = __MAX( p_result->x, tmp_result.x );
+ p_result->y += tmp_result.y;
+
+ p_prev = p_line;
+ p_line = NULL;
+
+ if( *psz_unicode == '\n')
+ {
+ uint32_t *c_ptr;
+
+ for( c_ptr = psz_unicode; *c_ptr; c_ptr++ )
+ {
+ *c_ptr = *(c_ptr+1);
+ }
+ }
+ }
+ }
+ free( psz_unicode );
+ if( p_face ) FT_Done_Face( p_face );
+ i_prev = k;
+ }
+ }
+ free( pp_char_styles );
+#if defined(HAVE_FRIBIDI)
+ free( psz_text );
+#endif
+ if( p_line )
+ {
+ p_result->x = __MAX( p_result->x, tmp_result.x );
+ p_result->y += tmp_result.y;
+ }
+
+ if( pi_karaoke_bar )
+ {
+ int i = 0;
+ for( p_line = *pp_lines; p_line; p_line=p_line->p_next )
+ {
+ for( k = 0; p_line->pp_glyphs[ k ]; k++, i++ )
+ {
+ if( (pi_karaoke_bar[ i ] & 0x7f) == 0x7f)
+ {
+ /* do nothing */
+ }
+ else if( (pi_karaoke_bar[ i ] & 0x7f) == 0x00)
+ {
+ /* 100% BG colour will render faster if we
+ * instead make it 100% FG colour, so leave
+ * the ratio alone and copy the value across
+ */
+ p_line->p_fg_rgb[ k ] = p_line->p_bg_rgb[ k ];
+ }
+ else
+ {
+ if( pi_karaoke_bar[ i ] & 0x80 )
+ {
+ /* Swap Left and Right sides over for Right aligned
+ * language text (eg. Arabic, Hebrew)
+ */
+ uint32_t i_tmp = p_line->p_fg_rgb[ k ];
+
+ p_line->p_fg_rgb[ k ] = p_line->p_bg_rgb[ k ];
+ p_line->p_bg_rgb[ k ] = i_tmp;
+ }
+ p_line->p_fg_bg_ratio[ k ] = (pi_karaoke_bar[ i ] & 0x7f);
+ }
+ }
+ /* Jump over the '\n' at the line-end */
+ i++;
+ }
+ free( pi_karaoke_bar );
+ }
+
+ return VLC_SUCCESS;
+}
+
+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 ),
+ VLC_TRUE );
+ if( p_sub )
+ {
+ p_xml = xml_Create( p_filter );
+ if( p_xml )
+ {
+ vlc_bool_t b_karaoke = VLC_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", VLC_TRUE );
+ b_karaoke = VLC_TRUE;
+ }
+ else if( !strcasecmp( "text", psz_node ) )
+ {
+ b_karaoke = VLC_FALSE;
+ }
+ else
+ {
+ /* Only text and karaoke tags are supported */
+ msg_Dbg( p_filter, "Unsupported top-level tag '%s' ignored.", psz_node );
+ xml_ReaderDelete( p_xml, p_xml_reader );
+ p_xml_reader = NULL;
+ rv = VLC_EGENERIC;
+ }
+
+ free( psz_node );
+ }
+ }
+
+ if( p_xml_reader )
+ {
+ uint32_t *psz_text;
+ int i_len = 0;
+ uint32_t i_runs = 0;
+ uint32_t i_k_runs = 0;
+ uint32_t *pi_run_lengths = NULL;
+ uint32_t *pi_k_run_lengths = NULL;
+ uint32_t *pi_k_durations = NULL;
+ ft_style_t **pp_styles = NULL;
+ FT_Vector result;
+ line_desc_t *p_lines = NULL;
+
+ psz_text = (uint32_t *)malloc( strlen( p_region_in->psz_html ) *
+ sizeof( uint32_t ) );
+ if( psz_text )
+ {
+ uint32_t k;
+
+ rv = ProcessNodes( p_filter, p_xml_reader,
+ p_region_in->p_style, psz_text, &i_len,
+ &i_runs, &pi_run_lengths, &pp_styles,
+ b_karaoke, &i_k_runs, &pi_k_run_lengths,
+ &pi_k_durations );
+
+ 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 ))
+ {
+ rv = ProcessLines( p_filter, psz_text, i_len, i_runs,
+ pi_run_lengths, pp_styles, &p_lines, &result,
+ b_karaoke, i_k_runs, pi_k_run_lengths,
+ pi_k_durations );
+ }
+
+ for( k=0; k<i_runs; k++)
+ DeleteStyle( pp_styles[k] );
+ free( pp_styles );
+ free( pi_run_lengths );
+ free( psz_text );
+
+ /* Don't attempt to render text that couldn't be layed out
+ * properly.
+ */
+ if(( rv == VLC_SUCCESS ) && ( i_len > 0 ))
+ {
+ if( config_GetInt( p_filter, "freetype-yuvp" ) )
+ {
+ Render( p_filter, p_region_out, p_lines,
+ result.x, result.y );
+ }
+ else
+ {
+ RenderYUVA( p_filter, p_region_out, p_lines,
+ result.x, result.y );
+ }
+ }
+ }
+ FreeLines( p_lines );
+
+ xml_ReaderDelete( p_xml, p_xml_reader );
+ }
+ xml_Delete( p_xml );
+ }
+ stream_Delete( p_sub );
+ }
+
+ return rv;
+}
+
+static char* FontConfig_Select( FcConfig* priv, const char* family,
+ vlc_bool_t b_bold, vlc_bool_t b_italic, int *i_idx )
+{
+ FcResult result;
+ FcPattern *pat, *p_pat;
+ FcChar8* val_s;
+ FcBool val_b;
+
+ pat = FcPatternCreate();
+ if (!pat) return NULL;
+
+ FcPatternAddString( pat, FC_FAMILY, (const FcChar8*)family );
+ FcPatternAddBool( pat, FC_OUTLINE, FcTrue );
+ FcPatternAddInteger( pat, FC_SLANT, b_italic ? 1000 : 0 );
+ FcPatternAddInteger( pat, FC_WEIGHT, b_bold ? 1000 : 0 );
+
+ FcDefaultSubstitute( pat );
+
+ if( !FcConfigSubstitute( priv, pat, FcMatchPattern ) )
+ {
+ FcPatternDestroy( pat );
+ return NULL;
+ }
+
+ p_pat = FcFontMatch( priv, pat, &result );
+ FcPatternDestroy( pat );
+ if( !p_pat ) return NULL;
+
+ if( ( FcResultMatch != FcPatternGetBool( p_pat, FC_OUTLINE, 0, &val_b ) )
+ || ( val_b != FcTrue ) )
+ {
+ FcPatternDestroy( p_pat );
+ return NULL;
+ }
+ if( FcResultMatch != FcPatternGetInteger( p_pat, FC_INDEX, 0, i_idx ) )
+ {
+ *i_idx = 0;
+ }
+
+ if( FcResultMatch != FcPatternGetString( p_pat, FC_FAMILY, 0, &val_s ) )
+ {
+ FcPatternDestroy( p_pat );
+ return NULL;
+ }
+
+ /*
+ if( strcasecmp((const char*)val_s, family ) != 0 )
+ msg_Warn( p_filter, "fontconfig: selected font family is not"
+ "the requested one: '%s' != '%s'\n",
+ (const char*)val_s, family );
+ */
+
+ if( FcResultMatch != FcPatternGetString( p_pat, FC_FILE, 0, &val_s ) )
+ {
+ FcPatternDestroy( p_pat );
+ return NULL;
+ }
+
+ FcPatternDestroy( p_pat );
+ return strdup( (const char*)val_s );
+}
+#endif
+
+static void FreeLine( line_desc_t *p_line )
+{
+ unsigned int i;
+ for( i = 0; p_line->pp_glyphs[ i ] != NULL; i++ )
+ {
+ FT_Done_Glyph( (FT_Glyph)p_line->pp_glyphs[ i ] );
+ }
+ free( p_line->pp_glyphs );
+ free( p_line->p_glyph_pos );
+ free( p_line->p_fg_rgb );
+ free( p_line->p_bg_rgb );
+ free( p_line->p_fg_bg_ratio );
+ free( p_line->pi_underline_offset );
+ free( p_line->pi_underline_thickness );
+ free( p_line );
+}
+
+static void FreeLines( line_desc_t *p_lines )
+{
+ line_desc_t *p_line, *p_next;
+
+ if( !p_lines ) return;
+
+ for( p_line = p_lines; p_line != NULL; p_line = p_next )
+ {
+ p_next = p_line->p_next;
+ FreeLine( p_line );
+ }
+}
+
+static line_desc_t *NewLine( int i_count )
+{
+ line_desc_t *p_line = malloc( sizeof(line_desc_t) );
+
+ if( !p_line ) return NULL;
+ p_line->i_height = 0;
+ p_line->i_width = 0;
+ p_line->p_next = NULL;
+
+ p_line->pp_glyphs = malloc( sizeof(FT_BitmapGlyph) * ( i_count + 1 ) );
+ p_line->p_glyph_pos = malloc( sizeof( FT_Vector ) * ( i_count + 1 ) );
+ p_line->p_fg_rgb = malloc( sizeof( uint32_t ) * ( i_count + 1 ) );
+ p_line->p_bg_rgb = malloc( sizeof( uint32_t ) * ( i_count + 1 ) );
+ p_line->p_fg_bg_ratio = calloc( i_count + 1, sizeof( uint8_t ) );
+ p_line->pi_underline_offset = calloc( i_count + 1, sizeof( uint16_t ) );
+ p_line->pi_underline_thickness = calloc( i_count + 1, sizeof( uint16_t ) );
+ if( ( p_line->pp_glyphs == NULL ) ||
+ ( p_line->p_glyph_pos == NULL ) ||
+ ( p_line->p_fg_rgb == NULL ) ||
+ ( p_line->p_bg_rgb == NULL ) ||
+ ( p_line->p_fg_bg_ratio == NULL ) ||
+ ( p_line->pi_underline_offset == NULL ) ||
+ ( p_line->pi_underline_thickness == NULL ) )
+ {
+ free( p_line->pi_underline_thickness );
+ free( p_line->pi_underline_offset );
+ free( p_line->p_fg_rgb );
+ free( p_line->p_bg_rgb );
+ free( p_line->p_fg_bg_ratio );
+ free( p_line->p_glyph_pos );
+ free( p_line->pp_glyphs );
+ free( p_line );
+ return NULL;
+ }
+ p_line->pp_glyphs[0] = NULL;
+ p_line->b_new_color_mode = VLC_FALSE;
return p_line;
}
+
+static int GetFontSize( filter_t *p_filter )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+ vlc_value_t val;
+ int i_size = 0;
+
+ if( p_sys->i_default_font_size )
+ {
+ if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
+ i_size = p_sys->i_default_font_size * val.i_int / 1000;
+ else
+ i_size = p_sys->i_default_font_size;
+ }
+ else
+ {
+ var_Get( p_filter, "freetype-rel-fontsize", &val );
+ i_size = (int)p_filter->fmt_out.video.i_height / val.i_int;
+ p_filter->p_sys->i_display_height =
+ p_filter->fmt_out.video.i_height;
+ }
+ if( i_size <= 0 )
+ {
+ msg_Warn( p_filter, "invalid fontsize, using 12" );
+ if( VLC_SUCCESS == var_Get( p_filter, "scale", &val ))
+ i_size = 12 * val.i_int / 1000;
+ else
+ i_size = 12;
+ }
+ return i_size;
+}
+
+static int SetFontSize( filter_t *p_filter, int i_size )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+
+ if( !i_size )
+ {
+ i_size = GetFontSize( p_filter );
+
+ msg_Dbg( p_filter, "using fontsize: %i", i_size );
+ }
+
+ p_sys->i_font_size = i_size;
+
+ if( FT_Set_Pixel_Sizes( p_sys->p_face, 0, i_size ) )
+ {
+ msg_Err( p_filter, "couldn't set font size to %d", i_size );
+ return VLC_EGENERIC;
+ }
+
+ return VLC_SUCCESS;
+}
+
+static void YUVFromRGB( uint32_t i_argb,
+ uint8_t *pi_y, uint8_t *pi_u, uint8_t *pi_v )
+{
+ int i_red = ( i_argb & 0x00ff0000 ) >> 16;
+ int i_green = ( i_argb & 0x0000ff00 ) >> 8;
+ int i_blue = ( i_argb & 0x000000ff );
+
+ *pi_y = (uint8_t)__MIN(abs( 2104 * i_red + 4130 * i_green +
+ 802 * i_blue + 4096 + 131072 ) >> 13, 235);
+ *pi_u = (uint8_t)__MIN(abs( -1214 * i_red + -2384 * i_green +
+ 3598 * i_blue + 4096 + 1048576) >> 13, 240);
+ *pi_v = (uint8_t)__MIN(abs( 3598 * i_red + -3013 * i_green +
+ -585 * i_blue + 4096 + 1048576) >> 13, 240);
+}
projects / vlc / blobdiff