freetype.c
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上传日期:2009-03-27
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文件大小:23k
- /*****************************************************************************
- * freetype.c : Put text on the video, using freetype2
- *****************************************************************************
- * Copyright (C) 2002, 2003 VideoLAN
- * $Id: freetype.c 9054 2004-10-24 16:37:13Z zorglub $
- *
- * Authors: Sigmund Augdal <sigmunau@idi.ntnu.no>
- * Gildas Bazin <gbazin@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
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * 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.
- *****************************************************************************/
- /*****************************************************************************
- * Preamble
- *****************************************************************************/
- #include <stdlib.h> /* malloc(), free() */
- #include <string.h>
- #ifdef HAVE_LINUX_LIMITS_H
- # include <linux/limits.h>
- #endif
- #include <vlc/vlc.h>
- #include <vlc/vout.h>
- #include "osd.h"
- #include "vlc_block.h"
- #include "vlc_filter.h"
- #include <math.h>
- #ifdef HAVE_ERRNO_H
- # include <errno.h>
- #endif
- #include <ft2build.h>
- #include FT_FREETYPE_H
- #include FT_GLYPH_H
- #ifdef SYS_DARWIN
- #define DEFAULT_FONT "/System/Library/Fonts/LucidaGrande.dfont"
- #elif defined( SYS_BEOS )
- #define DEFAULT_FONT "/boot/beos/etc/fonts/ttfonts/Swiss721.ttf"
- #elif defined( WIN32 )
- #define DEFAULT_FONT "" /* Default font found at run-time */
- #else
- #define DEFAULT_FONT "/usr/share/fonts/truetype/freefont/FreeSerifBold.ttf"
- #endif
- #if defined(HAVE_FRIBIDI)
- #include <fribidi/fribidi.h>
- #endif
- typedef struct line_desc_t line_desc_t;
- /*****************************************************************************
- * Local prototypes
- *****************************************************************************/
- static int Create ( vlc_object_t * );
- static void Destroy( vlc_object_t * );
- static subpicture_t *RenderText( filter_t *, block_t * );
- static line_desc_t *NewLine( byte_t * );
- /*****************************************************************************
- * Module descriptor
- *****************************************************************************/
- #define FONT_TEXT N_("Font")
- #define FONT_LONGTEXT N_("Font filename")
- #define FONTSIZE_TEXT N_("Font size in pixels")
- #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 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") };
- vlc_module_begin();
- set_description( _("freetype2 font renderer") );
- 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 );
- add_integer( "freetype-rel-fontsize", 16, NULL, FONTSIZER_TEXT,
- FONTSIZER_LONGTEXT, VLC_FALSE );
- change_integer_list( pi_sizes, ppsz_sizes_text, 0 );
- 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;
- int i_height;
- int i_width;
- line_desc_t *p_next;
- };
- static void Render ( filter_t *, subpicture_t *, subpicture_data_t * );
- static void FreeString( subpicture_data_t * );
- static void FreeLine( line_desc_t * );
- /*****************************************************************************
- * filter_sys_t: freetype local data
- *****************************************************************************
- * This structure is part of the video output thread descriptor.
- * It describes the freetype specific properties of an output thread.
- *****************************************************************************/
- struct filter_sys_t
- {
- 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];
- };
- /*****************************************************************************
- * Create: allocates osd-text video thread output method
- *****************************************************************************
- * This function allocates and initializes a Clone vout method.
- *****************************************************************************/
- 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;
- int i_fontsize = 0;
- vlc_value_t val;
- /* Allocate structure */
- p_sys = malloc( sizeof( filter_sys_t ) );
- if( !p_sys )
- {
- msg_Err( p_filter, "out of memory" );
- return VLC_ENOMEM;
- }
- p_sys->p_face = 0;
- p_sys->p_library = 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-fontsize",
- VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- var_Create( p_filter, "freetype-rel-fontsize",
- VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
- /* 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 );
- psz_fontfile = (char *)malloc( PATH_MAX + 1 );
- #ifdef WIN32
- GetWindowsDirectory( psz_fontfile, PATH_MAX + 1 );
- strcat( psz_fontfile, "\fonts\arial.ttf" );
- #elif SYS_DARWIN
- strcpy( psz_fontfile, DEFAULT_FONT );
- #else
- msg_Err( p_filter, "user didn't specify a font" );
- goto error;
- #endif
- }
- i_error = FT_Init_FreeType( &p_sys->p_library );
- if( i_error )
- {
- 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 )
- {
- msg_Err( p_filter, "file %s have unknown format", psz_fontfile );
- goto error;
- }
- else if( i_error )
- {
- msg_Err( p_filter, "failed to load font file %s", psz_fontfile );
- goto error;
- }
- 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" );
- goto error;
- }
- 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;
- }
- 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( p_sys );
- return VLC_EGENERIC;
- }
- /*****************************************************************************
- * Destroy: destroy Clone video thread output method
- *****************************************************************************
- * Clean up all data and library connections
- *****************************************************************************/
- static void Destroy( vlc_object_t *p_this )
- {
- 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 );
- }
- /*****************************************************************************
- * Render: place string in picture
- *****************************************************************************
- * 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 )
- {
- filter_sys_t *p_sys = p_filter->p_sys;
- line_desc_t *p_line;
- uint8_t *p_y, *p_u, *p_v, *p_a;
- video_format_t fmt;
- int i, x, y, i_pitch;
- /* 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_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 )
- {
- msg_Err( p_filter, "cannot allocate SPU region" );
- return;
- }
- 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;
- /* 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 );
- #define pi_gamma p_sys->pi_gamma
- for( p_line = p_string->p_lines; p_line != NULL; p_line = p_line->p_next )
- {
- int i_glyph_tmax = 0;
- int i_bitmap_offset, i_offset;
- 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 );
- }
- 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;
- 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;
- }
- 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;
- 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++ )
- {
- p_y[i_offset + x] =
- pi_gamma[p_glyph->bitmap.buffer[i_bitmap_offset]];
- }
- i_offset += i_pitch;
- }
- #undef pi_gamma
- }
- }
- }
- /**
- * 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_t *RenderText( filter_t *p_filter, block_t *p_block )
- {
- 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, *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);
- FT_BBox line;
- FT_BBox glyph_size;
- FT_Vector result;
- 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 );
- 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 convertion" );
- goto error;
- }
- {
- 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 );
- vlc_iconv_close( iconv_handle );
- 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;
- }
- *(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;
- 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
- /* Calculate relative glyph positions and a bounding box for the
- * entire string */
- p_line = NewLine( psz_string );
- if( p_line == NULL )
- {
- 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
- 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;
- p_next = NewLine( psz_string );
- if( p_next == NULL )
- {
- 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_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_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_glyph_index = FT_Get_Char_Index( face, i_char );
- if( p_sys->i_use_kerning && i_glyph_index
- && i_previous )
- {
- FT_Vector delta;
- FT_Get_Kerning( face, i_previous, i_glyph_index,
- ft_kerning_default, &delta );
- i_pen_x += delta.x >> 6;
- }
- p_line->p_glyph_pos[ i ].x = i_pen_x;
- p_line->p_glyph_pos[ i ].y = i_pen_y;
- 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 );
- goto error;
- }
- i_error = FT_Get_Glyph( glyph, &tmp_glyph );
- if( i_error )
- {
- msg_Err( p_filter, "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;
- 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 )
- {
- 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;
- }
- 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 = 0;
- line.xMin = 0;
- line.xMax = 0;
- line.yMin = 0;
- line.yMax = 0;
- i = 0;
- continue;
- }
- line.yMax = __MAX( line.yMax, glyph_size.yMax );
- line.yMin = __MIN( line.yMin, glyph_size.yMin );
- i_previous = i_glyph_index;
- i_pen_x += glyph->advance.x >> 6;
- i++;
- }
- p_line->i_width = line.xMax;
- p_line->i_height = face->size->metrics.height >> 6;
- p_line->pp_glyphs[ i ] = NULL;
- 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 );
- if( psz_unicode_orig ) free( psz_unicode_orig );
- return p_subpic;
- 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;
- }
- 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 FreeString( subpicture_data_t *p_string )
- {
- 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 )
- {
- p_next = p_line->p_next;
- 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;
- }
- p_line->i_height = 0;
- p_line->i_width = 0;
- p_line->p_next = NULL;
- /* 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 );
- 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;
- 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;
- }
- return p_line;
- }