forked from minhngoc25a/freetype2
Formatting.
This commit is contained in:
Werner Lemberg
parent
3d2be25ba1
commit
8ec0b130d8
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@ -25,22 +25,25 @@
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FT_BEGIN_HEADER
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/**************************************************************************
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*
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* <Section> system_interface
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*
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* <Title> System Interface
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*
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* <Abstract>
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* How FreeType manages memory and i/o
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*
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* <Description>
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* This section contains various definitions related to memory
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* management and i/o access. You'll need to understand this
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* information if you want to use a custom memory manager or
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* you own input i/o streams
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*
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*/
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/*************************************************************************/
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/* */
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/* <Section> */
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/* system_interface */
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/* */
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/* <Title> */
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/* System Interface */
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/* */
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/* <Abstract> */
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/* How FreeType manages memory and i/o. */
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/* */
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/* <Description> */
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/* This section contains various definitions related to memory */
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/* management and i/o access. You need to understand this */
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/* information if you want to use a custom memory manager or you own */
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/* input i/o streams. */
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/* */
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/*************************************************************************/
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/*************************************************************************/
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/* */
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@ -48,89 +51,103 @@ FT_BEGIN_HEADER
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/* */
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/*************************************************************************/
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/**********************************************************************
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*
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* @type: FT_Memory
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*
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* @description:
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* a handle to a given memory manager object, defined with a
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* @FT_MemoryRec structure.
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*/
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/*************************************************************************/
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/* */
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/* @type: */
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/* FT_Memory */
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/* */
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/* @description: */
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/* A handle to a given memory manager object, defined with a */
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/* @FT_MemoryRec structure. */
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/* */
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typedef struct FT_MemoryRec_* FT_Memory;
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/**********************************************************************
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*
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* @functype: FT_Alloc_Func
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*
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* @description:
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* a function used to allocate "size" bytes from "memory"
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*
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* @input:
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* memory :: handle to source memory manager
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* size :: size in bytes to allocate
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*
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* @return:
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* address of new memory block. 0 in case of failure
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*/
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/*************************************************************************/
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/* */
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/* @functype: */
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/* FT_Alloc_Func */
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/* */
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/* @description: */
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/* A function used to allocate `size' bytes from `memory'. */
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/* */
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/* @input: */
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/* memory :: A handle to the source memory manager. */
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/* */
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/* size :: The size in bytes to allocate. */
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/* */
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/* @return: */
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/* Address of new memory block. 0 in case of failure. */
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/* */
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typedef void* (*FT_Alloc_Func)( FT_Memory memory,
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long size );
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/**********************************************************************
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*
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* @functype: FT_Free_Func
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*
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* @description:
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* a function used to release a given block of memory
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*
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* @input:
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* memory :: handle to source memory manager
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* block :: address of target memory block
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*/
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/*************************************************************************/
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/* */
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/* @functype: */
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/* FT_Free_Func */
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/* */
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/* @description: */
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/* A function used to release a given block of memory. */
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/* */
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/* @input: */
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/* memory :: A handle to the source memory manager. */
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/* */
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/* block :: The address of the target memory block. */
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/* */
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typedef void (*FT_Free_Func)( FT_Memory memory,
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void* block );
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/**********************************************************************
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*
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* @functype: FT_Realloc_Func
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*
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* @description:
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* a function used to re-allocate a given block of memory
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*
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* @input:
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* memory :: handle to source memory manager
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* cur_size :: the block's current size in bytes
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* new_size :: the block's requested new size
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* block :: the block's current address
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*
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* @return:
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* new block address. 0 in case of memory shortage.
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*
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* @note:
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* note that in case of error, the old block must still be available
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*/
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/*************************************************************************/
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/* */
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/* @functype: */
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/* FT_Realloc_Func */
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/* */
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/* @description: */
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/* a function used to re-allocate a given block of memory. */
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/* */
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/* @input: */
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/* memory :: A handle to the source memory manager. */
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/* */
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/* cur_size :: The block's current size in bytes. */
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/* */
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/* new_size :: The block's requested new size. */
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/* */
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/* block :: The block's current address. */
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/* */
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/* @return: */
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/* New block address. 0 in case of memory shortage. */
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/* */
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/* @note: */
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/* In case of error, the old block must still be available. */
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/* */
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typedef void* (*FT_Realloc_Func)( FT_Memory memory,
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long cur_size,
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long new_size,
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void* block );
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/**********************************************************************
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*
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* @struct: FT_MemoryRec
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*
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* @description:
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* a structure used to describe a given memory manager to FreeType 2
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*
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* @fields:
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* user ::
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* alloc ::
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* free ::
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* realloc ::
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*
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*/
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struct FT_MemoryRec_
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/*************************************************************************/
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/* */
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/* @struct: */
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/* FT_MemoryRec */
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/* */
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/* @description: */
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/* A structure used to describe a given memory manager to FreeType 2. */
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/* */
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/* @fields: */
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/* user :: A generic typeless pointer for user data. */
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/* */
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/* alloc :: A pointer type to an allocation function. */
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/* */
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/* free :: A pointer type to an memory freeing function. */
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/* */
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/* realloc :: A pointer type to a reallocation function. */
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/* */
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struct FT_MemoryRec_
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{
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void* user;
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FT_Alloc_Func alloc;
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@ -146,26 +163,26 @@ FT_BEGIN_HEADER
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/*************************************************************************/
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/************************************************************************
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*
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* @type: FT_Stream
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*
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* @description:
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* a handle to an input stream.
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*/
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/*************************************************************************/
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/* */
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/* @type: */
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/* FT_Stream */
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/* */
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/* @description: */
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/* A handle to an input stream. */
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/* */
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typedef struct FT_StreamRec_* FT_Stream;
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/************************************************************************
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*
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* @struct: FT_StreamDesc
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*
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* @description:
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* a union type used to store either a long or a pointer. This is
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* used to store a file descriptor or a FILE* in an input stream
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*
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*/
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/*************************************************************************/
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/* */
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/* @struct: */
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/* FT_StreamDesc */
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/* */
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/* @description: */
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/* A union type used to store either a long or a pointer. This is */
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/* used to store a file descriptor or a FILE* in an input stream. */
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/* */
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typedef union FT_StreamDesc_
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{
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long value;
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@ -174,80 +191,89 @@ FT_BEGIN_HEADER
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} FT_StreamDesc;
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/************************************************************************
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*
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* @functype: FT_Stream_IO
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*
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* @description:
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* a function used to seek and read data from a given input stream
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*
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* @input:
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* stream :: handle to source stream
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* offset :: offset of read in stream (always from start)
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* buffer :: address of read buffer
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* count :: number of bytes to read from the stream
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*
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* @return:
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* number of bytes effectively read by the stream
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*
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* @note:
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* this function might be called to perform seek / skip with
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* a "count" of 0
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*/
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/*************************************************************************/
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/* */
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/* @functype: */
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/* FT_Stream_IO */
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/* */
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/* @description: */
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/* A function used to seek and read data from a given input stream. */
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/* */
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/* @input: */
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/* stream :: A handle to the source stream. */
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/* */
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/* offset :: The offset of read in stream (always from start). */
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/* */
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/* buffer :: The address of the read buffer. */
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/* */
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/* count :: The number of bytes to read from the stream. */
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/* */
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/* @return: */
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/* The number of bytes effectively read by the stream. */
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/* */
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/* @note: */
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/* This function might be called to perform a seek or skip operation */
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/* with a `count' of 0. */
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/* */
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typedef unsigned long (*FT_Stream_IO)( FT_Stream stream,
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unsigned long offset,
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unsigned char* buffer,
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unsigned long count );
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/************************************************************************
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*
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* @functype: FT_Stream_Close
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*
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* @description:
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* a function used to close a given input stream
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*
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* @input:
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* stream :: handle to target stream
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*/
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/*************************************************************************/
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/* */
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/* @functype: */
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/* FT_Stream_Close */
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/* */
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/* @description: */
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/* A function used to close a given input stream. */
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/* */
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/* @input: */
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/* stream :: A handle to the target stream. */
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/* */
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typedef void (*FT_Stream_Close)( FT_Stream stream );
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/************************************************************************
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*
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* @struct: FT_StreamRec
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*
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* @description:
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* a structure used to describe an input stream
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*
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* @input:
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* base :: for memory-based stream, this is the address of the first
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* stream byte in memory. this field should always be set to
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* NULL for disk-based streams.
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*
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* size :: the stream size in bytes
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* pos :: the current position within the stream
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*
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* descriptor :: this field is a union that can hold an integer or a pointer
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* it is used by stream implementations to store file
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* descriptors or FILE* pointers..
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*
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* pathname :: this field is completely ignored by FreeType, however,
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* it's often useful during debugging to use it to store
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* the stream's filename, where available
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*
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* read :: the stream's input function
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* close :: the stream close function
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*
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* memory :: memory manager to use to preload frames. this is set
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* internally by FreeType and shouldn't be touched by
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* stream implementations
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*
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* cursor :: this field is set and used internally by FreeType
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* when parsing frames.
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*
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* limit :: this field is set and used internally by FreeType
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* when parsing frames.
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*/
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/*************************************************************************/
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/* */
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/* @struct: */
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/* FT_StreamRec */
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/* */
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/* @description: */
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/* A structure used to describe an input stream. */
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/* */
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/* @input: */
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/* base :: For memory-based streams, this is the address of the */
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/* first stream byte in memory. This field should */
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/* always be set to NULL for disk-based streams. */
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/* */
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/* size :: The stream size in bytes. */
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/* */
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/* pos :: The current position within the stream. */
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/* */
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/* descriptor :: This field is a union that can hold an integer or a */
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/* pointer. It is used by stream implementations to */
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/* store file descriptors or FILE* pointers. */
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/* */
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/* pathname :: This field is completely ignored by FreeType. */
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/* However, it is often useful during debugging to use */
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/* it to store the stream's filename (where available). */
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/* */
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/* read :: The stream's input function. */
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/* */
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/* close :: The stream;s close function. */
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/* */
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/* memory :: The memory manager to use to preload frames. This is */
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/* set internally by FreeType and shouldn't be touched */
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/* by stream implementations. */
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/* */
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/* cursor :: This field is set and used internally by FreeType */
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/* when parsing frames. */
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/* */
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/* limit :: This field is set and used internally by FreeType */
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/* when parsing frames. */
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/* */
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struct FT_StreamRec_
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{
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unsigned char* base;
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