/*****************************************************************************
* freetype.c : Put text on the video, using freetype2
*****************************************************************************
- * Copyright (C) 2002, 2003 VideoLAN
+ * Copyright (C) 2002 - 2005 the VideoLAN team
* $Id$
*
- * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
+ * Authors: Sigmund Augdal Helberg <dnumgis@videolan.org>
* Gildas Bazin <gbazin@videolan.org>
*
* This program is free software; you can redistribute it and/or modify
#include <vlc/vlc.h>
#include <vlc/vout.h>
-#include "osd.h"
+#include "vlc_osd.h"
#include "vlc_block.h"
#include "vlc_filter.h"
static int Create ( vlc_object_t * );
static void Destroy( vlc_object_t * );
-static subpicture_t *RenderText( filter_t *, block_t * );
+/* The RenderText call maps to pf_render_string, defined in vlc_filter.h */
+static int RenderText( filter_t *, subpicture_region_t *,
+ subpicture_region_t * );
static line_desc_t *NewLine( byte_t * );
+static int SetFontSize( filter_t *, int );
+
/*****************************************************************************
* Module descriptor
*****************************************************************************/
#define FONTSIZE_LONGTEXT N_("The size of the fonts used by the osd module. " \
"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. 0 = 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" )
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") };
vlc_module_begin();
- set_description( _("freetype2 font renderer") );
+ set_shortname( _("Text renderer"));
+ set_description( _("Freetype2 font renderer") );
+ set_category( CAT_VIDEO );
+ 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_TRUE );
+
+ /* hook to the color values list, with default 0x00ffffff = white */
+ 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 );
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;
+
int i_height;
int i_width;
+ int i_red, i_green, i_blue;
+ int i_alpha;
+
line_desc_t *p_next;
};
-static void Render ( filter_t *, subpicture_t *, subpicture_data_t * );
-static void FreeString( subpicture_data_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 * );
/*****************************************************************************
* 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 pi_gamma[256];
+ uint8_t i_font_opacity;
+ int i_font_color;
+ int i_font_size;
+
+ int i_default_font_size;
+ int i_display_height;
};
/*****************************************************************************
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
char *psz_fontfile = NULL;
- int i, i_error;
- int i_fontsize = 0;
+ int i_error;
vlc_value_t val;
/* 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;
+ p_sys->i_display_height = 0;
- for( i = 0; i < 256; i++ )
- {
- p_sys->pi_gamma[i] = (uint8_t)( pow( (double)i * 255.0f, 0.5f ) );
- }
-
- var_Create( p_filter, "freetype-font", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
+ var_Create( p_filter, "freetype-font",
+ VLC_VAR_STRING | VLC_VAR_DOINHERIT );
var_Create( p_filter, "freetype-fontsize",
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_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_Get( p_filter, "freetype-color", &val );
+ p_sys->i_font_color = __MAX( __MIN( val.i_int, 0xFFFFFF ), 0 );
/* Look what method was requested */
var_Get( p_filter, "freetype-font", &val );
p_sys->i_use_kerning = FT_HAS_KERNING( p_sys->p_face );
var_Get( p_filter, "freetype-fontsize", &val );
- if( val.i_int )
- {
- i_fontsize = val.i_int;
- }
- else
- {
- var_Get( p_filter, "freetype-rel-fontsize", &val );
- i_fontsize = (int)p_filter->fmt_out.video.i_height / val.i_int;
- }
- if( i_fontsize <= 0 )
- {
- msg_Warn( p_filter, "Invalid fontsize, using 12" );
- i_fontsize = 12;
- }
- msg_Dbg( p_filter, "Using fontsize: %i", i_fontsize);
-
- i_error = FT_Set_Pixel_Sizes( p_sys->p_face, 0, i_fontsize );
- if( i_error )
- {
- msg_Err( p_filter, "couldn't set font size to %d", i_fontsize );
- goto error;
- }
+ p_sys->i_default_font_size = val.i_int;
+ if( SetFontSize( p_filter, 0 ) != VLC_SUCCESS ) goto error;
if( psz_fontfile ) free( psz_fontfile );
- p_filter->pf_render_string = RenderText;
- p_filter->p_sys = p_sys;
+ p_filter->pf_render_text = RenderText;
return VLC_SUCCESS;
error:
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys = p_filter->p_sys;
+
FT_Done_Face( p_sys->p_face );
FT_Done_FreeType( p_sys->p_library );
free( p_sys );
*****************************************************************************
* This function merges the previously rendered freetype glyphs into a picture
*****************************************************************************/
-static void Render( filter_t *p_filter, subpicture_t *p_spu,
- subpicture_data_t *p_string )
+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; /* 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;
fmt.i_x_offset = fmt.i_y_offset = 0;
- p_spu->p_region = p_spu->pf_create_region( VLC_OBJECT(p_filter), &fmt );
- if( !p_spu->p_region )
+ p_region_tmp = spu_CreateRegion( p_filter, &fmt );
+ if( !p_region_tmp )
{
msg_Err( p_filter, "cannot allocate SPU region" );
- return;
+ return VLC_EGENERIC;
}
- p_spu->p_region->i_x = p_spu->p_region->i_y = 0;
- p_y = p_spu->p_region->picture.Y_PIXELS;
- p_u = p_spu->p_region->picture.U_PIXELS;
- p_v = p_spu->p_region->picture.V_PIXELS;
- p_a = p_spu->p_region->picture.A_PIXELS;
- i_pitch = p_spu->p_region->picture.Y_PITCH;
+ 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;
+ }
- /* Initialize the region pixels (only the alpha will be changed later) */
- memset( p_y, 0x00, i_pitch * p_spu->p_region->fmt.i_height );
- memset( p_u, 0x80, i_pitch * p_spu->p_region->fmt.i_height );
- memset( p_v, 0x80, i_pitch * p_spu->p_region->fmt.i_height );
- memset( p_a, 0x00, i_pitch * p_spu->p_region->fmt.i_height );
+ p_dst = p_region->picture.Y_PIXELS;
+ i_pitch = p_region->picture.Y_PITCH;
-#define pi_gamma p_sys->pi_gamma
+ /* Initialize the region pixels */
+ memset( p_dst, 0, i_pitch * p_region->fmt.i_height );
- 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_text_align == SUBPICTURE_ALIGN_RIGHT )
+ {
+ i_align_offset = i_width - p_line->i_width;
+ }
+ else if( p_region->i_text_align != 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]])/2;
- 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]])/2;
- x += 2;
- p_a[i_offset + x] = ((uint16_t)p_a[i_offset + x] +
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]])/2;
- 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]])/2;
- 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 ) *
- 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] =
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]];
- }
- 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 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
+ * 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 subpicture_t *RenderText( filter_t *p_filter, block_t *p_block )
+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;
- subpicture_t *p_subpic = 0;
- subpicture_data_t *p_string = 0;
- line_desc_t *p_line = 0, *p_next = 0;
+ line_desc_t *p_lines = 0, *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;
+ 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_alpha, i_font_size, i_red, i_green, i_blue;
FT_BBox line;
FT_BBox glyph_size;
FT_Glyph tmp_glyph;
/* Sanity check */
- if( !p_block ) return NULL;
- psz_string = p_block->p_buffer;
- if( !psz_string || !*psz_string ) goto error;
-
- result.x = 0;
- result.y = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
-
- /* Create and initialize a subpicture */
- p_subpic = p_filter->pf_sub_buffer_new( p_filter );
- if( !p_subpic ) goto error;
-
- p_subpic->i_start = p_block->i_pts;
- p_subpic->i_stop = p_block->i_pts + p_block->i_length;
- p_subpic->b_ephemer = (p_block->i_length == 0);
- p_subpic->b_absolute = VLC_FALSE;
-
- /* 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 );
+ 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;
+
+ i_font_color = __MAX( __MIN( p_region_in->i_text_color, 0xFFFFFF ), 0 );
+ if( i_font_color == 0xFFFFFF ) i_font_color = p_sys->i_font_color;
+
+ i_font_alpha = __MAX( __MIN( p_region_in->i_text_alpha, 255 ), 0 );
+ if( !i_font_alpha ) i_font_alpha = 255 - p_sys->i_font_opacity;
+
+ i_font_size = __MAX( __MIN( p_region_in->i_text_size, 255 ), 0 );
+ 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" );
+ msg_Err( p_filter, "out of memory" );
goto error;
}
#if defined(WORDS_BIGENDIAN)
#endif
if( iconv_handle == (vlc_iconv_t)-1 )
{
- msg_Warn( p_filter, "Unable to do convertion" );
+ msg_Warn( p_filter, "unable to do conversion" );
goto error;
}
if( i_in_bytes )
{
- msg_Warn( p_filter, "Failed to convert string to unicode (%s), "
+ msg_Warn( p_filter, "failed to convert string to unicode (%s), "
"bytes left %d", strerror(errno), i_in_bytes );
goto error;
}
/* Calculate relative glyph positions and a bounding box for the
* entire string */
- p_line = NewLine( psz_string );
- if( p_line == NULL )
+ if( !(p_line = NewLine( psz_string )) )
{
- msg_Err( p_filter, "Out of memory" );
+ 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;
+ 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
if( i_char == '\n' )
{
- p_next = NewLine( psz_string );
- if( p_next == NULL )
+ psz_line_start = psz_unicode;
+ if( !(p_next = NewLine( psz_string )) )
{
- msg_Err( p_filter, "Out of memory" );
+ 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;
- 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;
}
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;
+ 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_lines = p_line;
+
+ while( psz_unicode > psz_line_start && *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 = i = 0;
+ line.xMin = line.xMax = line.yMin = line.yMax = 0;
+ continue;
+ }
line.yMax = __MAX( line.yMax, glyph_size.yMax );
line.yMin = __MIN( line.yMin, glyph_size.yMin );
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
- Render( p_filter, p_subpic, p_string );
- FreeString( p_string );
- block_Release( p_block );
+ p_region_out->i_x = p_region_in->i_x;
+ p_region_out->i_y = p_region_in->i_y;
+
+ Render( p_filter, p_region_out, p_lines, result.x, result.y );
+
if( psz_unicode_orig ) free( psz_unicode_orig );
- return p_subpic;
+ FreeLines( p_lines );
+ return VLC_SUCCESS;
error:
- FreeString( p_string );
- if( p_subpic ) p_filter->pf_sub_buffer_del( p_filter, p_subpic );
- block_Release( p_block );
if( psz_unicode_orig ) free( psz_unicode_orig );
- return NULL;
+ FreeLines( p_lines );
+ return VLC_EGENERIC;
}
-static void FreeString( subpicture_data_t *p_string )
+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 );
+}
+
+static void FreeLines( line_desc_t *p_lines )
+{
line_desc_t *p_line, *p_next;
- if( !p_string ) return;
+ if( !p_lines ) return;
- for( p_line = p_string->p_lines; p_line != NULL; p_line = p_next )
+ for( p_line = p_lines; p_line != NULL; p_line = p_next )
{
p_next = p_line->p_next;
- 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 );
+ FreeLine( p_line );
}
-
- free( p_string->psz_text );
- free( p_string );
}
static line_desc_t *NewLine( byte_t *psz_string )
{
int i_count;
line_desc_t *p_line = malloc( sizeof(line_desc_t) );
- if( !p_line )
- {
- return NULL;
- }
+
+ if( !p_line ) return NULL;
p_line->i_height = 0;
p_line->i_width = 0;
p_line->p_next = NULL;
* sure the string is utf8. Better be safe than sorry. */
i_count = strlen( psz_string );
- p_line->pp_glyphs = malloc( sizeof(FT_BitmapGlyph)
- * ( i_count + 1 ) );
+ p_line->pp_glyphs = malloc( sizeof(FT_BitmapGlyph) * ( i_count + 1 ) );
if( p_line->pp_glyphs == NULL )
{
free( p_line );
return NULL;
}
- p_line->p_glyph_pos = malloc( sizeof( FT_Vector )
- * i_count + 1 );
+ p_line->pp_glyphs[0] = NULL;
+
+ p_line->p_glyph_pos = malloc( sizeof( FT_Vector ) * i_count + 1 );
if( p_line->p_glyph_pos == NULL )
{
free( p_line->pp_glyphs );
return p_line;
}
+
+static int SetFontSize( filter_t *p_filter, int i_size )
+{
+ filter_sys_t *p_sys = p_filter->p_sys;
+
+ if( i_size && i_size == p_sys->i_font_size ) return VLC_SUCCESS;
+
+ if( !i_size )
+ {
+ vlc_value_t val;
+
+ if( !p_sys->i_default_font_size &&
+ p_sys->i_display_height == (int)p_filter->fmt_out.video.i_height )
+ return VLC_SUCCESS;
+
+ if( p_sys->i_default_font_size )
+ {
+ 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" );
+ i_size = 12;
+ }
+
+ 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;
+}
projects / vlc / blobdiff