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Code Issues 4 Releases Wiki Activity

Formatting.

This commit is contained in:
Werner Lemberg 2006-04-01 18:49:07 +00:00
parent cf60371a1b
commit 4091786c81
4 changed files with 119 additions and 116 deletions
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8
ChangeLog
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@ -1,9 +1,9 @@
2006-04-01 David Turner <david@freetype.org>
2006-04-01 David Turner <david@freetype.org>
* docs/CHANGES: update
* docs/CHANGES: Updated.
* include/freetype/ftcache.h, include/freetype/config/ftheader.h:
updating documentation comments
* include/freetype/ftcache.h, include/freetype/config/ftheader.h:
Update documentation comments.
2006-04-01 Werner Lemberg <wl@gnu.org>

6
docs/CHANGES
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@ -42,8 +42,8 @@ LATEST CHANGES BETWEEN 2.2 and 2.1.10
- The LIGHT hinting algorithm produces more pleasant results.
Also, using the FT_LOAD_TARGET_LIGHT flags within FT_Load_Glyph
always forces auto-hinting, as a special exception. This allows
you to experiment with it even if you have enabled the TrueType
always forces auto-hinting, as a special exception. This allows
you to experiment with it even if you have enabled the TrueType
bytecode interpreter in your build.
- The auto hinter now employs a new algorithm for CJK fonts, based
@ -77,7 +77,7 @@ LATEST CHANGES BETWEEN 2.2 and 2.1.10
bitmap strikes should be updated to use this function.
- A new API `FT_Get_SubGlyph_Info' has been added to retrieve
subglyph data. This can be used by rogue clients which used to
subglyph data. This can be used by rogue clients which used to
access the internal headers to get the corresponding data.
- In 2.1.10, the behaviour of `FT_Set_Pixel_Sizes' was changed for

16
include/freetype/config/ftheader.h
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@ -623,9 +623,9 @@
*
* @description:
* A macro used in #include statements to name the file containing the
* FreeType 2 API used to stroke outline path
* FreeType 2 API used to stroke outline path.
*/
#define FT_STROKER_H <freetype/ftstroke.h>
#define FT_STROKER_H <freetype/ftstroke.h>
/*************************************************************************
@ -635,9 +635,9 @@
*
* @description:
* A macro used in #include statements to name the file containing the
* FreeType 2 API used to perform artificial obliquing and emboldening
* FreeType 2 API used to perform artificial obliquing and emboldening.
*/
#define FT_SYNTHESIS_H <freetype/ftsynth.h>
#define FT_SYNTHESIS_H <freetype/ftsynth.h>
/*************************************************************************
@ -648,9 +648,9 @@
* @description:
* A macro used in #include statements to name the file containing the
* FreeType 2 API used to provide functions specific to the XFree86 and
* X.Org X11 servers
* X.Org X11 servers.
*/
#define FT_XFREE86_H <freetype/ftxf86.h>
#define FT_XFREE86_H <freetype/ftxf86.h>
/*************************************************************************
@ -660,10 +660,10 @@
*
* @description:
* A macro used in #include statements to name the file containing the
* FreeType 2 API used to perform trigonometric computations (e.g.
* FreeType 2 API used to perform trigonometric computations (e.g.,
* cosines and arc tangents).
*/
#define FT_TRIGONOMETRY_H <freetype/fttrigon.h>
#define FT_TRIGONOMETRY_H <freetype/fttrigon.h>
/* */

205
include/freetype/ftcache.h
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@ -46,38 +46,39 @@ FT_BEGIN_HEADER
*
* Note that all types and functions begin with the FTC_ prefix.
*
* the cache is highly portable and thus doesn't know anything about
* the fonts installed on your system, or how to access them. This implies
* The cache is highly portable and thus doesn't know anything about the
* fonts installed on your system, or how to access them. This implies
* the following scheme:
*
* first, available/installed font faces are uniquely identified by
* @FTC_FaceID values provided to the cache by the client. Note that the
* cache only stores and compares these values, and doesn't try to
* First, available or installed font faces are uniquely identified by
* @FTC_FaceID values, provided to the cache by the client. Note that
* the cache only stores and compares these values, and doesn't try to
* interpret them in any way.
*
* Second, the cache will call, only when needed, a client-provided
* function to convert a @FTC_FaceID into a new @FT_Face object. The latter
* will then be completely managed by the cache, including its termination
* Second, the cache calls, only when needed, a client-provided function
* to convert a @FTC_FaceID into a new @FT_Face object. The latter is
* then completely managed by the cache, including its termination
* through @FT_Done_Face.
*
* Clients are free to map face ids to anything. The most simple usage is
* to associate them to a (pathname,face_index) pair that is used to call
* @FT_New_Face. However, more complex schemes are also possible.
* Clients are free to map face IDs to anything else. The most simple
* usage is to associate them to a (pathname,face_index) pair that is
* used to call @FT_New_Face. However, more complex schemes are also
* possible.
*
* Note that for the cache to work correctly, the face id values must be
* *persistent*, which means that the content they point to should not
* Note that for the cache to work correctly, the face ID values must be
* *persistent*, which means that the contents they point to should not
* change at runtime, or that their value should not become invalid.
*
* If this is unavoidable (e.g. when a font is uninstalled at runtime),
* If this is unavoidable (e.g., when a font is uninstalled at runtime),
* you should call @FTC_Manager_RemoveFaceID as soon as possible, to let
* the cache get rid of any references to the old @FTC_FaceID it may
* keep internally. Failure to do so will lead to incorrect behaviour
* keep internally. Failure to do so will lead to incorrect behaviour
* or even crashes.
*
* To use the cache, start by calling @FTC_Manager_New to create a new
* @FTC_Manager object, which models a single cache instance. You can
* then lookup @FT_Face and @FT_Size objects with @FTC_Manager_LookupFace
* and @FTC_Manager_LookupSize respectively.
* To use the cache, start with calling @FTC_Manager_New to create a new
* @FTC_Manager object, which models a single cache instance. You can
* then look up @FT_Face and @FT_Size objects with
* @FTC_Manager_LookupFace and @FTC_Manager_LookupSize, respectively.
*
* If you want to use the charmap caching, call @FTC_CMapCache_New, then
* later use @FTC_CMapCache_Lookup to perform the equivalent of
@ -87,14 +88,13 @@ FT_BEGIN_HEADER
* later use @FTC_ImageCache_Lookup to retrieve the corresponding
* @FT_Glyph objects from the cache.
*
* If you need lots of small bitmaps, it is much more memory efficient to
* call @FTC_SBitCache_New, then later @FTC_SBitCache_Lookup, this returns
* @FTC_SBitRec structures, which are used to store small bitmaps directly.
* (a small bitmap is one whose metrics and dimensions all fit in 8-bit
* integers).
* If you need lots of small bitmaps, it is much more memory efficient
* to call @FTC_SBitCache_New followed by @FTC_SBitCache_Lookup. This
* returns @FTC_SBitRec structures, which are used to store small
* bitmaps directly. (A small bitmap is one whose metrics and
* dimensions all fit into 8-bit integers).
*
* We hope to also provide a kerning cache in the near future. Stay
* tuned.
* We hope to also provide a kerning cache in the near future.
*
*
* <Order>
@ -139,65 +139,70 @@ FT_BEGIN_HEADER
/*************************************************************************/
/*************************************************************************
*
* @type: FTC_FaceID
*
* @description:
* An opaque pointer type that is used to identity face objects. The
* contents of such objects is application-dependent.
*
* these pointers are typically used to point to a user-defined
* structure containing a font file path, and face index.
*
* @note:
* never use NULL as a valid @FTC_FaceID
*
* Face ids are passed by the client to the cache manager, which will
* call, when needed, the @FTC_Face_Requester to translate them into
* new @FT_Face objects
*
* if the content of a given face id changes at runtime, or if the
* value becomes invalid (e.g. when uninstalling a font), you should
* immediately call @FTC_Manager_RemoveFaceID before any other cache
* function.
*
* Failure to do so will result in incorrect behaviour or even
* memory leaks and crashes !
**/
/*************************************************************************
*
* @type: FTC_FaceID
*
* @description:
* An opaque pointer type that is used to identity face objects. The
* contents of such objects is application-dependent.
*
* These pointers are typically used to point to a user-defined
* structure containing a font file path, and face index.
*
* @note:
* Never use NULL as a valid @FTC_FaceID.
*
* Face IDs are passed by the client to the cache manager, which calls,
* when needed, the @FTC_Face_Requester to translate them into new
* @FT_Face objects.
*
* If the content of a given face ID changes at runtime, or if the value
* becomes invalid (e.g., when uninstalling a font), you should
* immediately call @FTC_Manager_RemoveFaceID before any other cache
* function.
*
* Failure to do so will result in incorrect behaviour or even
* memory leaks and crashes.
*/
typedef struct FTC_FaceIDRec_* FTC_FaceID;
/************************************************************************
*
* @functype: FTC_Face_Requester
*
* @description:
* A callback function provided by client applications. It is used
* by the cache manager to translate a given @FTC_FaceID into a new
* valid @FT_Face object, on demand.
*
* <Input>
* face_id :: The face ID to resolve.
*
* library :: A handle to a FreeType library object.
*
* req_data :: Application-provided request data (see note below).
*
* <Output>
* aface :: A new @FT_Face handle.
*
* <Return>
* FreeType error code. 0 means success.
*
* <Note>
* The third parameter 'req_data' is the same than the one passed
* by the client when @FTC_Manager_New is called.
*
* The face requester should not perform funny things on the returned
* face object, like creating a new @FT_Size for it, or setting a
* transformation through @FT_Set_Transform!
**/
/************************************************************************
*
* @functype:
* FTC_Face_Requester
*
* @description:
* A callback function provided by client applications. It is used by
* the cache manager to translate a given @FTC_FaceID into a new valid
* @FT_Face object, on demand.
*
* <Input>
* face_id ::
* The face ID to resolve.
*
* library ::
* A handle to a FreeType library object.
*
* req_data ::
* Application-provided request data (see note below).
*
* <Output>
* aface ::
* A new @FT_Face handle.
*
* <Return>
* FreeType error code. 0 means success.
*
* <Note>
* The third parameter `req_data' is the same as the one passed by the
* client when @FTC_Manager_New is called.
*
* The face requester should not perform funny things on the returned
* face object, like creating a new @FT_Size for it, or setting a
* transformation through @FT_Set_Transform!
*/
typedef FT_Error
(*FTC_Face_Requester)( FTC_FaceID face_id,
FT_Library library,
@ -234,12 +239,12 @@ FT_BEGIN_HEADER
/* It is used to cache one or more @FT_Face objects, along with */
/* corresponding @FT_Size objects. */
/* */
/* the manager intentionally limits the total number of opened */
/* @FT_Face and @FT_Size objects to limit memory usage. See the */
/* 'max_faces' and 'max_sizes' parameters of @FTC_Manager_New. */
/* The manager intentionally limits the total number of opened */
/* @FT_Face and @FT_Size objects to control memory usage. See the */
/* `max_faces' and `max_sizes' parameters of @FTC_Manager_New. */
/* */
/* the manager is also used to cache 'nodes' of various types */
/* while limiting their total memory usage. */
/* The manager is also used to cache `nodes' of various types while */
/* limiting their total memory usage. */
/* */
/* All limitations are enforced by keeping lists of managed objects */
/* in most-recently-used order, and flushing old nodes to make room */
@ -277,24 +282,23 @@ FT_BEGIN_HEADER
/* Creates a new cache manager. */
/* */
/* <Input> */
/* library :: The parent FreeType library handle to use. */
/* library :: The parent FreeType library handle to use. */
/* */
/* max_faces :: Maximum number of opened @FT_Face objects managed */
/* by this cache instance. */
/* max_faces :: Maximum number of opened @FT_Face objects managed by */
/* this cache instance. */
/* */
/* max_sizes :: Maximum number of opened @FT_Size objects managed */
/* by this cache instance. */
/* max_sizes :: Maximum number of opened @FT_Size objects managed by */
/* this cache instance. */
/* */
/* max_bytes :: Maximum number of bytes to use for cached data */
/* nodes. Use 0 for defaults. Note that this value */
/* does not account for managed FT_Face and FT_Size */
/* objects. */
/* max_bytes :: Maximum number of bytes to use for cached data nodes. */
/* Use 0 for defaults. Note that this value does not */
/* account for managed FT_Face and FT_Size objects. */
/* */
/* requester :: An application-provided callback used to translate */
/* face IDs into real @FT_Face objects. */
/* requester :: An application-provided callback used to translate */
/* face IDs into real @FT_Face objects. */
/* */
/* req_data :: A generic pointer that is passed to the requester */
/* each time it is called (see @FTC_Face_Requester). */
/* req_data :: A generic pointer that is passed to the requester */
/* each time it is called (see @FTC_Face_Requester). */
/* */
/* <Output> */
/* amanager :: A handle to a new manager object. 0 in case of */
@ -376,7 +380,6 @@ FT_BEGIN_HEADER
/* the @FT_Set_Transform function) on a returned face! If you need */
/* to transform glyphs, do it yourself after glyph loading. */
/* */
/* <Note> */
/* When you perform a lookup, out-of-memory errors are detected */
/* _within_ the lookup and force incremental flushes of the cache */
/* until enough memory is released for the lookup to succeed. */