/***************************************************************************/ | |
/* */ | |
/* ftcimage.c */ | |
/* */ | |
/* FreeType Image cache (body). */ | |
/* */ | |
/* Copyright 2000-2015 by */ | |
/* David Turner, Robert Wilhelm, and Werner Lemberg. */ | |
/* */ | |
/* This file is part of the FreeType project, and may only be used, */ | |
/* modified, and distributed under the terms of the FreeType project */ | |
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */ | |
/* this file you indicate that you have read the license and */ | |
/* understand and accept it fully. */ | |
/* */ | |
/***************************************************************************/ | |
#include <ft2build.h> | |
#include FT_CACHE_H | |
#include "ftcimage.h" | |
#include FT_INTERNAL_MEMORY_H | |
#include FT_INTERNAL_OBJECTS_H | |
#include "ftccback.h" | |
#include "ftcerror.h" | |
/* finalize a given glyph image node */ | |
FT_LOCAL_DEF( void ) | |
ftc_inode_free( FTC_Node ftcinode, | |
FTC_Cache cache ) | |
{ | |
FTC_INode inode = (FTC_INode)ftcinode; | |
FT_Memory memory = cache->memory; | |
if ( inode->glyph ) | |
{ | |
FT_Done_Glyph( inode->glyph ); | |
inode->glyph = NULL; | |
} | |
FTC_GNode_Done( FTC_GNODE( inode ), cache ); | |
FT_FREE( inode ); | |
} | |
FT_LOCAL_DEF( void ) | |
FTC_INode_Free( FTC_INode inode, | |
FTC_Cache cache ) | |
{ | |
ftc_inode_free( FTC_NODE( inode ), cache ); | |
} | |
/* initialize a new glyph image node */ | |
FT_LOCAL_DEF( FT_Error ) | |
FTC_INode_New( FTC_INode *pinode, | |
FTC_GQuery gquery, | |
FTC_Cache cache ) | |
{ | |
FT_Memory memory = cache->memory; | |
FT_Error error; | |
FTC_INode inode = NULL; | |
if ( !FT_NEW( inode ) ) | |
{ | |
FTC_GNode gnode = FTC_GNODE( inode ); | |
FTC_Family family = gquery->family; | |
FT_UInt gindex = gquery->gindex; | |
FTC_IFamilyClass clazz = FTC_CACHE__IFAMILY_CLASS( cache ); | |
/* initialize its inner fields */ | |
FTC_GNode_Init( gnode, gindex, family ); | |
/* we will now load the glyph image */ | |
error = clazz->family_load_glyph( family, gindex, cache, | |
&inode->glyph ); | |
if ( error ) | |
{ | |
FTC_INode_Free( inode, cache ); | |
inode = NULL; | |
} | |
} | |
*pinode = inode; | |
return error; | |
} | |
FT_LOCAL_DEF( FT_Error ) | |
ftc_inode_new( FTC_Node *ftcpinode, | |
FT_Pointer ftcgquery, | |
FTC_Cache cache ) | |
{ | |
FTC_INode *pinode = (FTC_INode*)ftcpinode; | |
FTC_GQuery gquery = (FTC_GQuery)ftcgquery; | |
return FTC_INode_New( pinode, gquery, cache ); | |
} | |
FT_LOCAL_DEF( FT_Offset ) | |
ftc_inode_weight( FTC_Node ftcinode, | |
FTC_Cache ftccache ) | |
{ | |
FTC_INode inode = (FTC_INode)ftcinode; | |
FT_Offset size = 0; | |
FT_Glyph glyph = inode->glyph; | |
FT_UNUSED( ftccache ); | |
switch ( glyph->format ) | |
{ | |
case FT_GLYPH_FORMAT_BITMAP: | |
{ | |
FT_BitmapGlyph bitg; | |
bitg = (FT_BitmapGlyph)glyph; | |
size = bitg->bitmap.rows * (FT_Offset)FT_ABS( bitg->bitmap.pitch ) + | |
sizeof ( *bitg ); | |
} | |
break; | |
case FT_GLYPH_FORMAT_OUTLINE: | |
{ | |
FT_OutlineGlyph outg; | |
outg = (FT_OutlineGlyph)glyph; | |
size = (FT_Offset)outg->outline.n_points * | |
( sizeof ( FT_Vector ) + sizeof ( FT_Byte ) ) + | |
(FT_Offset)outg->outline.n_contours * sizeof ( FT_Short ) + | |
sizeof ( *outg ); | |
} | |
break; | |
default: | |
; | |
} | |
size += sizeof ( *inode ); | |
return size; | |
} | |
#if 0 | |
FT_LOCAL_DEF( FT_Offset ) | |
FTC_INode_Weight( FTC_INode inode ) | |
{ | |
return ftc_inode_weight( FTC_NODE( inode ), NULL ); | |
} | |
#endif /* 0 */ | |
/* END */ |