Formatting.
This commit is contained in:
parent
f697866ec2
commit
0db8d1ab84
@ -15,7 +15,6 @@
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/* */
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/***************************************************************************/
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/*************************************************************************/
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/* */
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/* This component has a _single_ role: to compute exact outline bounding */
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@ -15,7 +15,6 @@
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/* */
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/***************************************************************************/
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/*************************************************************************/
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/* */
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/* This component contains various macros and functions used to ease the */
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@ -42,7 +42,7 @@
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/* A driver method used to create a new driver object for a given */
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/* format. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* driver :: A handle to the `new' driver object. The fields */
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/* `library', `system', and `lock' are already set when the */
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/* base layer calls this method. */
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@ -64,7 +64,7 @@
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/* this call, and that this function should NOT destroy the driver */
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/* object. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* driver :: A handle to target driver object. */
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/* */
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/* <Return> */
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@ -72,7 +72,6 @@
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/* */
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typedef FT_Error (*FTDriver_doneDriver)( FT_Driver driver );
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/*************************************************************************/
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/* */
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@ -88,10 +87,12 @@
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/* `postscript names' interface which can be used to retrieve the */
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/* PostScript name of a given glyph index). */
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/* */
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/* <Input> */
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/* <InOut> */
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/* driver :: A handle to a driver object. */
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/* interface :: A string designing the interface. Examples */
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/* are `sfnt', `post_names', `charmaps', etc. */
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/* */
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/* <Input> */
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/* interface :: A string designing the interface. Examples are */
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/* `sfnt', `post_names', `charmaps', etc. */
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/* */
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/* <Return> */
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/* A typeless pointer to the extension's interface (normally a table */
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@ -140,10 +141,14 @@
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/* A driver method used to initialize a new face object. The object */
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/* must be created by the caller. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* stream :: The input stream. */
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/* */
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/* <Input> */
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/* typeface_index :: The face index in the font resource. Used to */
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/* access individual faces in collections. */
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/* */
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/* <Output> */
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/* face :: A handle to the new target face. */
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/* */
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/* <Return> */
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@ -174,7 +179,7 @@
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/* function does NOT destroy the object, that is the responsibility */
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/* of the caller. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* face :: A handle to the target face object. */
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/* */
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/* <Return> */
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@ -242,7 +247,7 @@
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/* A driver method used to initialize a new size object. The object */
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/* must be created by the caller. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* size :: A handle to the new size object. */
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/* */
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/* <Return> */
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@ -264,8 +269,10 @@
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/* A driver method used to reset a size's character sizes (horizontal */
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/* and vertical) expressed in fractional points. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* size :: A handle to the target size object. */
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/* */
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/* <Input> */
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/* char_width :: The character width expressed in 26.6 */
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/* fractional points. */
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/* char_height :: The character height expressed in 26.6 */
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@ -296,8 +303,10 @@
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/* A driver method used to reset a size's character sizes (horizontal */
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/* and vertical) expressed in integer pixels. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* size :: A handle to the target size object. */
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/* */
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/* <Input> */
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/* pixel_width :: The character width expressed in 26.6 fractional */
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/* pixels. */
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/* pixel_height :: The character height expressed in 26.6 fractional */
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@ -307,7 +316,7 @@
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/* FreeType error code. 0 means success. */
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/* */
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/* <Note> */
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/* This function should work with all kinds of `Size' objects, either */
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/* This function should work with all kinds of `size' objects, either */
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/* fixed or scalable ones. */
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/* */
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typedef FT_Error (*FTDriver_setPixelSizes)( FT_Size size,
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@ -325,7 +334,7 @@
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/* does NOT destroy the object; this is the responsibility of the */
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/* caller. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* size :: A handle to the target size object. */
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/* */
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typedef void (*FTDriver_doneSize)( FT_Size size );
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@ -356,7 +365,7 @@
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/* container where a single glyph can be loaded, either in outline or */
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/* bitmap format. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* slot :: A handle to the new glyph slot object. */
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/* */
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/* <Return> */
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@ -374,7 +383,7 @@
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/* A driver method used to finalize a given glyph slot. The object */
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/* is not destroyed by this function. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* slot :: A handle to the new glyph slot object. */
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/* */
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typedef void (*FTDriver_doneGlyphSlot)( FT_GlyphSlot slot );
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@ -388,11 +397,13 @@
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/* <Description> */
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/* A driver method used to load a glyph within a given glyph slot. */
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/* */
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/* <Input> */
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/* <InOut> */
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/* slot :: A handle to target slot object where the glyph will */
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/* be loaded. */
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/* size :: A handle to the source face size at which the glyph */
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/* must be scaled/loaded. */
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/* */
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/* <Input> */
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/* glyph_index :: The index of the glyph in the font file. */
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/* load_flags :: A flag indicating what to load for this glyph. The */
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/* FTLOAD_??? constants can be used to control the */
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@ -1,34 +1,38 @@
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/*******************************************************************
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*
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* ftextend.h 2.0
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*
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* Extensions Implementation
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*
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* Copyright 1996-1999 by
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* David Turner, Robert Wilhelm, and Werner Lemberg.
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*
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* This file is part of the FreeType project, and may only be used
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* modified and distributed under the terms of the FreeType project
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* license, LICENSE.TXT. By continuing to use, modify, or distribute
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* this file you indicate that you have read the license and
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* understand and accept it fully.
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*
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* This is an updated version of the extension component, now
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* located in the main library's source directory. It allows
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* the dynamic registration/use of various face object extensions
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* through a simple API.
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*
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******************************************************************/
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/***************************************************************************/
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/* */
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/* ftextend.h */
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/* */
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/* FreeType extensions implementation (body). */
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/* */
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/* Copyright 1996-2000 by */
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/* David Turner, Robert Wilhelm, and Werner Lemberg. */
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/* */
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/* This file is part of the FreeType project, and may only be used */
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/* modified and distributed under the terms of the FreeType project */
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/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
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/* this file you indicate that you have read the license and */
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/* understand and accept it fully. */
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/* */
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/***************************************************************************/
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#include "ftextend.h"
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#include "ftobjs.h"
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/*************************************************************************/
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/* */
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/* This is an updated version of the extension component, now located */
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/* in the main library's source directory. It allows the dynamic */
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/* registration/use of various face object extensions through a simple */
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/* API. */
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/* */
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/*************************************************************************/
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#include <ftextend.h>
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#include <ftobjs.h>
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/* required by the tracing mode */
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#undef FT_COMPONENT
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#define FT_COMPONENT trace_extend
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#define FT_COMPONENT trace_extend
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typedef struct FT_Extension_Registry_
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typedef struct FT_Extension_Registry_
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{
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FT_Int num_extensions;
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FT_Long cur_offset;
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@ -37,17 +41,30 @@
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} FT_Extension_Registry;
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/* Initialize the extension component */
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/*************************************************************************/
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/* */
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/* <Function> */
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/* FT_Init_Extensions */
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/* */
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/* <Description> */
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/* Initializes the extension component. */
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/* */
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/* <InOut> */
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/* driver :: A handle to the driver object. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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LOCAL_FUNC
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FT_Error FT_Init_Extensions( FT_Driver driver )
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{
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FT_Error error;
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FT_Error error;
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FT_Memory memory;
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FT_Extension_Registry* registry;
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memory = driver->library->memory;
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if ( ALLOC( registry, sizeof (*registry) ) )
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if ( ALLOC( registry, sizeof ( *registry ) ) )
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return error;
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registry->num_extensions = 0;
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@ -58,36 +75,64 @@
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}
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/* Finalize the extension component */
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/*************************************************************************/
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/* */
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/* <Function> */
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/* FT_Done_Extensions */
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/* */
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/* <Description> */
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/* Finalizes the extension component. */
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/* */
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/* <InOut> */
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/* driver :: A handle to the driver object. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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LOCAL_FUNC
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FT_Error FT_Done_Extensions( FT_Driver driver )
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{
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FT_Memory memory = driver->memory;
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FREE( driver->extensions );
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return FT_Err_Ok;
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}
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/* Register a new extension */
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/*************************************************************************/
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/* */
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/* <Function> */
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/* FT_Register_Extension */
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/* */
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/* <Description> */
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/* Registers a new extension. */
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/* */
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/* <InOut> */
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/* driver :: A handle to the driver object. */
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/* class :: A pointer to a class describing the extension. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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EXPORT_FUNC
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FT_Error FT_Register_Extension( FT_Driver driver,
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FT_Extension_Class* clazz )
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FT_Extension_Class* class )
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{
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FT_Extension_Registry* registry;
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registry = (FT_Extension_Registry*)driver->extensions;
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if (registry)
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if ( registry )
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{
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FT_Int n = registry->num_extensions;
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FT_Extension_Class* cur = registry->classes + n;
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if ( n >= FT_MAX_EXTENSIONS )
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return FT_Err_Too_Many_Extensions;
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*cur = *clazz;
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*cur = *class;
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cur->offset = registry->cur_offset;
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@ -99,20 +144,40 @@
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}
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/* Query an extension block by extension_ID */
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/*************************************************************************/
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/* */
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/* <Function> */
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/* FT_Get_Extension */
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/* */
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/* <Description> */
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/* Queries an extension block by an extension ID string. */
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/* */
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/* <Input> */
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/* face :: A handle to the face object. */
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/* extension_id :: An ID string identifying the extension. */
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/* */
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/* <Output> */
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/* extension_interface :: A generic pointer, usually pointing to a */
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/* table of functions implementing the */
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/* extension interface. */
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/* */
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/* <Return> */
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/* A pointer to the extension block. */
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/* */
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EXPORT_FUNC
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void* FT_Get_Extension( FT_Face face,
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const char* extension_id,
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void* *extension_interface )
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{
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FT_Extension_Registry* registry;
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registry = (FT_Extension_Registry*)face->driver->extensions;
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if (registry && face->extensions)
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if ( registry && face->extensions )
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{
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FT_Extension_Class* cur = registry->classes;
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FT_Extension_Class* limit = cur + registry->num_extensions;
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for ( ; cur < limit; cur++ )
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if ( strcmp( cur->id, extension_id ) == 0 )
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@ -123,55 +188,92 @@
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}
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/* could not find the extension id */
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*extension_interface = 0;
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return 0;
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}
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/* Destroy all extensions within a face object. Called by the */
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/* face object destructor. */
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/*************************************************************************/
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/* */
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/* <Function> */
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/* FT_Destroy_Extensions */
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/* */
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/* <Description> */
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/* Destroys all extensions within a face object. */
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/* */
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/* <InOut> */
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/* face :: A handle to the face object. */
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/* */
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/* <Return> */
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/* FreeType error code. 0 means success. */
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/* */
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/* <Note> */
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/* Called by the face object destructor. */
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/* */
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LOCAL_FUNC
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FT_Error FT_Destroy_Extensions( FT_Face face )
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{
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FT_Extension_Registry* registry;
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FT_Memory memory;
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registry = (FT_Extension_Registry*)face->driver->extensions;
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if (registry && face->extensions)
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if ( registry && face->extensions )
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{
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FT_Extension_Class* cur = registry->classes;
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FT_Extension_Class* limit = cur + registry->num_extensions;
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for ( ; cur < limit; cur++ )
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{
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char* ext = (char*)face->extensions + cur->offset;
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if (cur->finalize)
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if ( cur->finalize )
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cur->finalize( ext, face );
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}
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memory = face->driver->memory;
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FREE( face->extensions );
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}
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return FT_Err_Ok;
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||||
}
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||||
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||||
|
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/* Create an extension within a face object. Called by the */
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/* face object constructor. */
|
||||
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/*************************************************************************/
|
||||
/* */
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/* <Function> */
|
||||
/* FT_Create_Extensions */
|
||||
/* */
|
||||
/* <Description> */
|
||||
/* Creates an extension object within a face object for all */
|
||||
/* registered extensions. */
|
||||
/* */
|
||||
/* <InOut> */
|
||||
/* face :: A handle to the face object. */
|
||||
/* */
|
||||
/* <Return> */
|
||||
/* FreeType error code. 0 means success. */
|
||||
/* */
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||||
/* <Note> */
|
||||
/* Called by the face object constructor. */
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/* */
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LOCAL_FUNC
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FT_Error FT_Create_Extensions( FT_Face face )
|
||||
{
|
||||
FT_Extension_Registry* registry;
|
||||
FT_Memory memory;
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||||
FT_Error error;
|
||||
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||||
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face->extensions = 0;
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||||
|
||||
/* load extensions registry, exit succesfully if none is there */
|
||||
/* load extensions registry, exit successfully if none is there */
|
||||
|
||||
registry = (FT_Extension_Registry*)face->driver->extensions;
|
||||
if (!registry) return FT_Err_Ok;
|
||||
if ( !registry )
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||||
return FT_Err_Ok;
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||||
|
||||
memory = face->driver->memory;
|
||||
if ( ALLOC( face->extensions, registry->cur_offset ) )
|
||||
@ -180,18 +282,21 @@
|
||||
{
|
||||
FT_Extension_Class* cur = registry->classes;
|
||||
FT_Extension_Class* limit = cur + registry->num_extensions;
|
||||
|
||||
|
||||
for ( ; cur < limit; cur++ )
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||||
{
|
||||
char* ext = (char*)face->extensions + cur->offset;
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||||
|
||||
if (cur->init)
|
||||
if ( cur->init )
|
||||
{
|
||||
error = cur->init( ext, face );
|
||||
if (error) break;
|
||||
if ( error )
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return error;
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||||
}
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|
@ -1,117 +1,114 @@
|
||||
/*******************************************************************
|
||||
*
|
||||
* ftextend.h 2.0
|
||||
*
|
||||
* Extensions Interface.
|
||||
*
|
||||
* Copyright 1996-1999 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.
|
||||
*
|
||||
******************************************************************/
|
||||
/***************************************************************************/
|
||||
/* */
|
||||
/* ftextend.h */
|
||||
/* */
|
||||
/* FreeType extensions implementation (specification). */
|
||||
/* */
|
||||
/* Copyright 1996-2000 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. */
|
||||
/* */
|
||||
/***************************************************************************/
|
||||
|
||||
#ifndef FTEXTEND_H
|
||||
#define FTEXTEND_H
|
||||
|
||||
#include "ftconfig.h"
|
||||
#include "ftobjs.h"
|
||||
#include <ftconfig.h>
|
||||
#include <ftobjs.h>
|
||||
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
/* The extensions don't need to be integrated at compile time into */
|
||||
/* the engine, only at link time. */
|
||||
|
||||
/*****************************************************************
|
||||
*
|
||||
* <FuncType>
|
||||
* FT_Extension_Initializer
|
||||
*
|
||||
* <Description>
|
||||
* Each new face object can have several extensions associated
|
||||
* to it at creation time. This function is used to initialize
|
||||
* a given extension data for a given face.
|
||||
*
|
||||
* <Input>
|
||||
* ext :: a typeless pointer to the extension data.
|
||||
* face :: handle to the source face object the extension is
|
||||
* associated with
|
||||
*
|
||||
* <Return>
|
||||
* Error condition. 0 means success
|
||||
*
|
||||
* <Note>
|
||||
* In case of error, the initializer should not destroy the
|
||||
* extension data, as the finalizer will get called later
|
||||
* by the function's caller..
|
||||
*
|
||||
*****************************************************************/
|
||||
/*************************************************************************/
|
||||
/* */
|
||||
/* The extensions don't need to be integrated at compile time into the */
|
||||
/* engine, only at link time. */
|
||||
/* */
|
||||
/*************************************************************************/
|
||||
|
||||
/*************************************************************************/
|
||||
/* */
|
||||
/* <FuncType> */
|
||||
/* FT_Extension_Initializer */
|
||||
/* */
|
||||
/* <Description> */
|
||||
/* Each new face object can have several extensions associated with */
|
||||
/* it at creation time. This function is used to initialize given */
|
||||
/* extension data for a given face. */
|
||||
/* */
|
||||
/* <InOut> */
|
||||
/* ext :: A typeless pointer to the extension data. */
|
||||
/* face :: A handle to the source face object the extension is */
|
||||
/* associated with. */
|
||||
/* */
|
||||
/* <Return> */
|
||||
/* FreeType error code. 0 means success. */
|
||||
/* */
|
||||
/* <Note> */
|
||||
/* In case of error, the initializer should not destroy the extension */
|
||||
/* data, as the finalizer will get called later by the function's */
|
||||
/* caller. */
|
||||
/* */
|
||||
typedef FT_Error (*FT_Extension_Initializer)( void* ext,
|
||||
FT_Face face );
|
||||
|
||||
/*****************************************************************
|
||||
*
|
||||
* <FuncType>
|
||||
* FT_Extension_Finalizer
|
||||
*
|
||||
* <Description>
|
||||
* Each new face object can have several extensions associated
|
||||
* to it at creation time. This function is used to finalize
|
||||
* a given extension data for a given face. This occurs before
|
||||
* the face object itself is finalized.
|
||||
*
|
||||
* <Input>
|
||||
* ext :: a typeless pointer to the extension data.
|
||||
* face :: handle to the source face object the extension is
|
||||
* associated with
|
||||
*
|
||||
*****************************************************************/
|
||||
|
||||
typedef void (*FT_Extension_Finalizer)( void* ext, FT_Face face );
|
||||
/*************************************************************************/
|
||||
/* */
|
||||
/* <FuncType> */
|
||||
/* FT_Extension_Finalizer */
|
||||
/* */
|
||||
/* <Description> */
|
||||
/* Each new face object can have several extensions associated with */
|
||||
/* it at creation time. This function is used to finalize given */
|
||||
/* extension data for a given face; it occurs before the face object */
|
||||
/* itself is finalized. */
|
||||
/* */
|
||||
/* <InOut> */
|
||||
/* ext :: A typeless pointer to the extension data. */
|
||||
/* face :: A handle to the source face object the extension is */
|
||||
/* associated with. */
|
||||
/* */
|
||||
typedef void (*FT_Extension_Finalizer)( void* ext,
|
||||
FT_Face face );
|
||||
|
||||
|
||||
/*****************************************************************
|
||||
*
|
||||
* <Struct>
|
||||
* FT_Extension_Class
|
||||
*
|
||||
* <Description>
|
||||
* A simple structure used to describe a given extension to
|
||||
* the FreeType base layer. An FT_Extension_Class is used as
|
||||
* a parameter for FT_Register_Extension.
|
||||
*
|
||||
* <Fields>
|
||||
* id :: the extension's id. This is a normal C string
|
||||
* that is used to uniquely reference the extension's
|
||||
* interface.
|
||||
*
|
||||
* size :: the size in bytes of the extension data that must
|
||||
* be associated with each face object.
|
||||
*
|
||||
* init :: a pointer to the extension data's initializer
|
||||
* finalize :: a pointer to the extension data's finalizer
|
||||
*
|
||||
* inteface :: this pointer can be anything, but should usually
|
||||
* point to a table of function pointers which implement
|
||||
* the extension's interface.
|
||||
*
|
||||
* offset :: this field is set and used within the base layer
|
||||
* and should be set to 0 when registering an
|
||||
* extension through FT_Register_Extension. It contains
|
||||
* an offset within the face's extension block for the
|
||||
* current extension's data.
|
||||
*
|
||||
*****************************************************************/
|
||||
|
||||
typedef struct FT_Extension_Class_
|
||||
/*************************************************************************/
|
||||
/* */
|
||||
/* <Struct> */
|
||||
/* FT_Extension_Class */
|
||||
/* */
|
||||
/* <Description> */
|
||||
/* A simple structure used to describe a given extension to the */
|
||||
/* FreeType base layer. An FT_Extension_Class is used as a parameter */
|
||||
/* for FT_Register_Extension(). */
|
||||
/* */
|
||||
/* <Fields> */
|
||||
/* id :: The extension's ID. This is a normal C string that */
|
||||
/* is used to uniquely reference the extension's */
|
||||
/* interface. */
|
||||
/* size :: The size in bytes of the extension data that must be */
|
||||
/* associated with each face object. */
|
||||
/* init :: A pointer to the extension data's initializer. */
|
||||
/* finalize :: A pointer to the extension data's finalizer. */
|
||||
/* interface :: This pointer can be anything, but should usually */
|
||||
/* point to a table of function pointers which implement */
|
||||
/* the extension's interface. */
|
||||
/* */
|
||||
/* offset :: This field is set and used within the base layer and */
|
||||
/* should be set to 0 when registering an extension */
|
||||
/* through FT_Register_Extension(). It contains an */
|
||||
/* offset within the face's extension block for the */
|
||||
/* current extension's data. */
|
||||
/* */
|
||||
typedef struct FT_Extension_Class_
|
||||
{
|
||||
const char* id;
|
||||
FT_ULong size;
|
||||
@ -130,6 +127,8 @@
|
||||
|
||||
|
||||
#ifdef FT_CONFIG_OPTION_EXTEND_ENGINE
|
||||
|
||||
|
||||
/* Initialize the extension component */
|
||||
LOCAL_DEF
|
||||
FT_Error FT_Init_Extensions( FT_Library library );
|
||||
@ -147,13 +146,17 @@
|
||||
/* face object destructor. */
|
||||
LOCAL_DEF
|
||||
FT_Error FT_Destroy_Extensions( FT_Face face );
|
||||
|
||||
|
||||
#endif
|
||||
|
||||
/* Returns an extension's data & inteface according to its ID */
|
||||
|
||||
/* Returns an extension's data & interface according to its ID */
|
||||
EXPORT_DEF
|
||||
void* FT_Get_Extension( FT_Face face,
|
||||
const char* extension_id,
|
||||
void* *extension_interface );
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
Loading…
Reference in New Issue
Block a user