ref: 64e26ad3a2ef2e07190b2027b113a6b3f6eb8b0d
dir: /src/cache/ftcglyph.c/
/**************************************************************************** * * ftcglyph.c * * FreeType Glyph Image (FT_Glyph) cache (body). * * Copyright (C) 2000-2021 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 <freetype/internal/ftobjs.h> #include <freetype/ftcache.h> #include "ftcglyph.h" #include <freetype/fterrors.h> #include "ftccback.h" #include "ftcerror.h" /* create a new chunk node, setting its cache index and ref count */ FT_LOCAL_DEF( void ) FTC_GNode_Init( FTC_GNode gnode, FT_UInt gindex, FTC_Family family ) { gnode->family = family; gnode->gindex = gindex; family->num_nodes++; } FT_LOCAL_DEF( void ) FTC_GNode_UnselectFamily( FTC_GNode gnode, FTC_Cache cache ) { FTC_Family family = gnode->family; gnode->family = NULL; if ( family && --family->num_nodes == 0 ) FTC_FAMILY_FREE( family, cache ); } FT_LOCAL_DEF( void ) FTC_GNode_Done( FTC_GNode gnode, FTC_Cache cache ) { /* finalize the node */ gnode->gindex = 0; FTC_GNode_UnselectFamily( gnode, cache ); } FT_LOCAL_DEF( FT_Bool ) ftc_gnode_compare( FTC_Node ftcgnode, FT_Pointer ftcgquery, FTC_Cache cache, FT_Bool* list_changed ) { FTC_GNode gnode = (FTC_GNode)ftcgnode; FTC_GQuery gquery = (FTC_GQuery)ftcgquery; FT_UNUSED( cache ); if ( list_changed ) *list_changed = FALSE; return FT_BOOL( gnode->family == gquery->family && gnode->gindex == gquery->gindex ); } #ifdef FTC_INLINE FT_LOCAL_DEF( FT_Bool ) FTC_GNode_Compare( FTC_GNode gnode, FTC_GQuery gquery, FTC_Cache cache, FT_Bool* list_changed ) { return ftc_gnode_compare( FTC_NODE( gnode ), gquery, cache, list_changed ); } #endif /*************************************************************************/ /*************************************************************************/ /***** *****/ /***** CHUNK SETS *****/ /***** *****/ /*************************************************************************/ /*************************************************************************/ FT_LOCAL_DEF( void ) FTC_Family_Init( FTC_Family family, FTC_Cache cache ) { FTC_GCacheClass clazz = FTC_CACHE_GCACHE_CLASS( cache ); family->clazz = clazz->family_class; family->num_nodes = 0; family->cache = cache; } FT_LOCAL_DEF( FT_Error ) ftc_gcache_init( FTC_Cache ftccache ) { FTC_GCache cache = (FTC_GCache)ftccache; FT_Error error; error = FTC_Cache_Init( FTC_CACHE( cache ) ); if ( !error ) { FTC_GCacheClass clazz = (FTC_GCacheClass)FTC_CACHE( cache )->org_class; FTC_MruList_Init( &cache->families, clazz->family_class, 0, /* no maximum here! */ cache, FTC_CACHE( cache )->memory ); } return error; } #if 0 FT_LOCAL_DEF( FT_Error ) FTC_GCache_Init( FTC_GCache cache ) { return ftc_gcache_init( FTC_CACHE( cache ) ); } #endif /* 0 */ FT_LOCAL_DEF( void ) ftc_gcache_done( FTC_Cache ftccache ) { FTC_GCache cache = (FTC_GCache)ftccache; FTC_Cache_Done( (FTC_Cache)cache ); FTC_MruList_Done( &cache->families ); } #if 0 FT_LOCAL_DEF( void ) FTC_GCache_Done( FTC_GCache cache ) { ftc_gcache_done( FTC_CACHE( cache ) ); } #endif /* 0 */ FT_LOCAL_DEF( FT_Error ) FTC_GCache_New( FTC_Manager manager, FTC_GCacheClass clazz, FTC_GCache *acache ) { return FTC_Manager_RegisterCache( manager, (FTC_CacheClass)clazz, (FTC_Cache*)acache ); } #ifndef FTC_INLINE FT_LOCAL_DEF( FT_Error ) FTC_GCache_Lookup( FTC_GCache cache, FT_Offset hash, FT_UInt gindex, FTC_GQuery query, FTC_Node *anode ) { FT_Error error; query->gindex = gindex; FTC_MRULIST_LOOKUP( &cache->families, query, query->family, error ); if ( !error ) { FTC_Family family = query->family; /* prevent the family from being destroyed too early when an */ /* out-of-memory condition occurs during glyph node initialization. */ family->num_nodes++; error = FTC_Cache_Lookup( FTC_CACHE( cache ), hash, query, anode ); if ( --family->num_nodes == 0 ) FTC_FAMILY_FREE( family, cache ); } return error; } #endif /* !FTC_INLINE */ /* END */