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Diffstat (limited to 'src/cache/ftcmanag.h')
| -rw-r--r-- | src/cache/ftcmanag.h | 175 |
1 files changed, 0 insertions, 175 deletions
diff --git a/src/cache/ftcmanag.h b/src/cache/ftcmanag.h deleted file mode 100644 index 3fdc2c7..0000000 --- a/src/cache/ftcmanag.h +++ /dev/null @@ -1,175 +0,0 @@ -/***************************************************************************/ -/* */ -/* ftcmanag.h */ -/* */ -/* FreeType Cache Manager (specification). */ -/* */ -/* Copyright 2000-2001, 2003, 2004, 2006 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 */ - /* and 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 <ft2build.h> -#include FT_CACHE_H -#include "ftcmru.h" -#include "ftccache.h" - - -FT_BEGIN_HEADER - - - /*************************************************************************/ - /* */ - /* <Section> */ - /* 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 - - - typedef struct FTC_ManagerRec_ - { - FT_Library library; - FT_Memory memory; - - FTC_Node nodes_list; - FT_ULong max_weight; - FT_ULong cur_weight; - FT_UInt num_nodes; - - FTC_Cache caches[FTC_MAX_CACHES]; - FT_UInt num_caches; - - FTC_MruListRec faces; - FTC_MruListRec sizes; - - FT_Pointer request_data; - FTC_Face_Requester request_face; - - } FTC_ManagerRec; - - - /*************************************************************************/ - /* */ - /* <Function> */ - /* FTC_Manager_Compress */ - /* */ - /* <Description> */ - /* 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). */ - /* */ - /* <InOut> */ - /* manager :: A handle to the cache manager. */ - /* */ - /* <Note> */ - /* 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_LOCAL( void ) - FTC_Manager_Compress( FTC_Manager manager ); - - - /* try to flush `count' old nodes from the cache; return the number - * of really flushed nodes - */ - FT_LOCAL( FT_UInt ) - FTC_Manager_FlushN( FTC_Manager manager, - FT_UInt count ); - - - /* this must be used internally for the moment */ - FT_LOCAL( FT_Error ) - FTC_Manager_RegisterCache( FTC_Manager manager, - FTC_CacheClass clazz, - FTC_Cache *acache ); - - /* */ - -#define FTC_SCALER_COMPARE( a, b ) \ - ( (a)->face_id == (b)->face_id && \ - (a)->width == (b)->width && \ - (a)->height == (b)->height && \ - ((a)->pixel != 0) == ((b)->pixel != 0) && \ - ( (a)->pixel || \ - ( (a)->x_res == (b)->x_res && \ - (a)->y_res == (b)->y_res ) ) ) - -#define FTC_SCALER_HASH( q ) \ - ( FTC_FACE_ID_HASH( (q)->face_id ) + \ - (q)->width + (q)->height*7 + \ - ( (q)->pixel ? 0 : ( (q)->x_res*33 ^ (q)->y_res*61 ) ) ) - - /* */ - -FT_END_HEADER - -#endif /* __FTCMANAG_H__ */ - - -/* END */ |