X-Git-Url: https://git.octo.it/?p=rrdtool.git;a=blobdiff_plain;f=libraries%2Ffreetype-2.0.5%2Finclude%2Ffreetype%2Fcache%2Fftcmanag.h;fp=libraries%2Ffreetype-2.0.5%2Finclude%2Ffreetype%2Fcache%2Fftcmanag.h;h=0000000000000000000000000000000000000000;hp=2d97fad3a254d844dafd0ed57566038864540130;hb=bab0189ee9d56aca8bea909275317ab4e0be09ee;hpb=b837c0527f117b54845242ee7626df6d88394444 diff --git a/libraries/freetype-2.0.5/include/freetype/cache/ftcmanag.h b/libraries/freetype-2.0.5/include/freetype/cache/ftcmanag.h deleted file mode 100644 index 2d97fad..0000000 --- a/libraries/freetype-2.0.5/include/freetype/cache/ftcmanag.h +++ /dev/null @@ -1,385 +0,0 @@ -/***************************************************************************/ -/* */ -/* ftcmanag.h */ -/* */ -/* FreeType Cache Manager (specification). */ -/* */ -/* Copyright 2000-2001 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. */ -/* */ -/***************************************************************************/ - - - /*************************************************************************/ - /* */ - /* A cache manager is in charge of the following: */ - /* */ - /* - Maintain a mapping between generic FTC_FaceIDs and live FT_Face */ - /* objects. The mapping itself is performed through a user-provided */ - /* callback. However, the manager maintains a small cache of FT_Face */ - /* & FT_Size objects in order to speed up things considerably. */ - /* */ - /* - Manage one or more cache objects. Each cache is in charge of */ - /* holding a varying number of `cache nodes'. Each cache node */ - /* represents a minimal amount of individually accessible cached */ - /* data. For example, a cache node can be an FT_Glyph image */ - /* containing a vector outline, or some glyph metrics, or anything */ - /* else. */ - /* */ - /* Each cache node has a certain size in bytes that is added to the */ - /* total amount of `cache memory' within the manager. */ - /* */ - /* All cache nodes are located in a global LRU list, where the oldest */ - /* node is at the tail of the list. */ - /* */ - /* Each node belongs to a single cache, and includes a reference */ - /* count to avoid destroying it (due to caching). */ - /* */ - /*************************************************************************/ - - - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /********* *********/ - /********* WARNING, THIS IS BETA CODE. *********/ - /********* *********/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - /*************************************************************************/ - - -#ifndef __FTCMANAG_H__ -#define __FTCMANAG_H__ - - -#include -#include FT_CACHE_H -#include FT_CACHE_INTERNAL_LRU_H - - -FT_BEGIN_HEADER - - - /*************************************************************************/ - /* */ - /*
*/ - /* cache_subsystem */ - /* */ - /*************************************************************************/ - - -#define FTC_MAX_FACES_DEFAULT 2 -#define FTC_MAX_SIZES_DEFAULT 4 -#define FTC_MAX_BYTES_DEFAULT 200000L /* 200kByte by default! */ - - /* maximum number of caches registered in a single manager */ -#define FTC_MAX_CACHES 16 - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_ManagerRec */ - /* */ - /* */ - /* The cache manager structure. */ - /* */ - /* */ - /* library :: A handle to a FreeType library instance. */ - /* */ - /* faces_lru :: The lru list of FT_Face objects in the cache. */ - /* */ - /* sizes_lru :: The lru list of FT_Size objects in the cache. */ - /* */ - /* max_bytes :: The maximum number of bytes to be allocated in the */ - /* cache. This is only related to the byte size of */ - /* the nodes cached by the manager. */ - /* */ - /* num_bytes :: The current number of bytes allocated in the */ - /* cache. Only related to the byte size of cached */ - /* nodes. */ - /* */ - /* num_nodes :: The current number of nodes in the manager. */ - /* */ - /* global_lru :: The global lru list of all cache nodes. */ - /* */ - /* caches :: A table of installed/registered cache objects. */ - /* */ - /* request_data :: User-provided data passed to the requester. */ - /* */ - /* request_face :: User-provided function used to implement a mapping */ - /* between abstract FTC_FaceIDs and real FT_Face */ - /* objects. */ - /* */ - typedef struct FTC_ManagerRec_ - { - FT_Library library; - FT_Lru faces_lru; - FT_Lru sizes_lru; - - FT_ULong max_bytes; - FT_ULong num_bytes; - FT_UInt num_nodes; - FT_ListRec global_lru; - FTC_Cache caches[FTC_MAX_CACHES]; - - FT_Pointer request_data; - FTC_Face_Requester request_face; - - } FTC_ManagerRec; - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_Manager_Compress */ - /* */ - /* */ - /* This function is used to check the state of the cache manager if */ - /* its `num_bytes' field is greater than its `max_bytes' field. It */ - /* will flush as many old cache nodes as possible (ignoring cache */ - /* nodes with a non-zero reference count). */ - /* */ - /* */ - /* manager :: A handle to the cache manager. */ - /* */ - /* */ - /* Client applications should not call this function directly. It is */ - /* normally invoked by specific cache implementations. */ - /* */ - /* The reason this function is exported is to allow client-specific */ - /* cache classes. */ - /* */ - FT_EXPORT( void ) - FTC_Manager_Compress( FTC_Manager manager ); - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** CACHE NODE DEFINITIONS *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* Each cache controls one or more cache nodes. Each node is part of */ - /* the global_lru list of the manager. Its `data' field however is used */ - /* as a reference count for now. */ - /* */ - /* A node can be anything, depending on the type of information held by */ - /* the cache. It can be an individual glyph image, a set of bitmaps */ - /* glyphs for a given size, some metrics, etc. */ - /* */ - - typedef FT_ListNodeRec FTC_CacheNodeRec; - typedef FTC_CacheNodeRec* FTC_CacheNode; - - - /* the field `cachenode.data' is typecast to this type */ - typedef struct FTC_CacheNode_Data_ - { - FT_UShort cache_index; - FT_Short ref_count; - - } FTC_CacheNode_Data; - - - /* return a pointer to FTC_CacheNode_Data contained in a */ - /* CacheNode's `data' field */ -#define FTC_CACHENODE_TO_DATA_P( n ) \ - ( (FTC_CacheNode_Data*)&(n)->data ) - -#define FTC_LIST_TO_CACHENODE( n ) ( (FTC_CacheNode)(n) ) - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_CacheNode_SizeFunc */ - /* */ - /* */ - /* A function used to compute the total size in bytes of a given */ - /* cache node. It is used by the cache manager to compute the number */ - /* of old nodes to flush when the cache is full. */ - /* */ - /* */ - /* node :: A handle to the target cache node. */ - /* */ - /* cache_data :: A generic pointer passed to the destructor. */ - /* */ - /* */ - /* The size of a given cache node in bytes. */ - /* */ - typedef FT_ULong - (*FTC_CacheNode_SizeFunc)( FTC_CacheNode node, - FT_Pointer cache_data ); - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_CacheNode_DestroyFunc */ - /* */ - /* */ - /* A function used to destroy a given cache node. It is called by */ - /* the manager when the cache is full and old nodes need to be */ - /* flushed out. */ - /* */ - /* */ - /* node :: A handle to the target cache node. */ - /* */ - /* cache_data :: A generic pointer passed to the destructor. */ - /* */ - typedef void - (*FTC_CacheNode_DestroyFunc)( FTC_CacheNode node, - FT_Pointer cache_data ); - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_CacheNode_Class */ - /* */ - /* */ - /* A very simple structure used to describe a cache node's class to */ - /* the cache manager. */ - /* */ - /* */ - /* size_node :: A function used to size the node. */ - /* */ - /* destroy_node :: A function used to destroy the node. */ - /* */ - /* */ - /* The cache node class doesn't include a `new_node' function because */ - /* the cache manager never allocates cache node directly; it */ - /* delegates this task to its cache objects. */ - /* */ - typedef struct FTC_CacheNode_Class_ - { - FTC_CacheNode_SizeFunc size_node; - FTC_CacheNode_DestroyFunc destroy_node; - - } FTC_CacheNode_Class; - - - /*************************************************************************/ - /*************************************************************************/ - /***** *****/ - /***** CACHE DEFINITIONS *****/ - /***** *****/ - /*************************************************************************/ - /*************************************************************************/ - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_Cache_InitFunc */ - /* */ - /* */ - /* A function used to initialize a given cache object. */ - /* */ - /* */ - /* cache :: A handle to the new cache. */ - /* */ - typedef FT_Error - (*FTC_Cache_InitFunc)( FTC_Cache cache ); - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_Cache_DoneFunc */ - /* */ - /* */ - /* A function to finalize a given cache object. */ - /* */ - /* */ - /* cache :: A handle to the target cache. */ - /* */ - typedef void - (*FTC_Cache_DoneFunc)( FTC_Cache cache ); - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_Cache_Class */ - /* */ - /* */ - /* A structure used to describe a given cache object class to the */ - /* cache manager. */ - /* */ - /* */ - /* cache_byte_size :: The size of the cache object in bytes. */ - /* */ - /* init_cache :: The cache object initializer. */ - /* */ - /* done_cache :: The cache object finalizer. */ - /* */ - struct FTC_Cache_Class_ - { - FT_UInt cache_byte_size; - FTC_Cache_InitFunc init_cache; - FTC_Cache_DoneFunc done_cache; - }; - - - /*************************************************************************/ - /* */ - /* */ - /* FTC_CacheRec */ - /* */ - /* */ - /* A structure used to describe an abstract cache object. */ - /* */ - /* */ - /* manager :: A handle to the parent cache manager. */ - /* */ - /* memory :: A handle to the memory manager. */ - /* */ - /* clazz :: A pointer to the cache class. */ - /* */ - /* node_clazz :: A pointer to the cache's node class. */ - /* */ - /* cache_index :: An index of the cache in the manager's table. */ - /* */ - /* cache_data :: Data passed to the cache node */ - /* constructor/finalizer. */ - /* */ - typedef struct FTC_CacheRec_ - { - FTC_Manager manager; - FT_Memory memory; - FTC_Cache_Class* clazz; - FTC_CacheNode_Class* node_clazz; - - FT_UInt cache_index; /* in manager's table */ - FT_Pointer cache_data; /* passed to cache node methods */ - - } FTC_CacheRec; - - - /* */ - - -FT_END_HEADER - -#endif /* __FTCMANAG_H__ */ - - -/* END */