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* Jamfile, docs/reference/README: fix it so that "jam refdoc" works 

correctly to generate the API reference in 'docs/reference'

	* src/tools/docmaker/tohtml.py: update to output nicer fields lists
	in the API reference

	* src/base/ftobjs.c (FT_Load_Glyph): FT_LOAD_TARGET_LIGHT now
	forces auto-hinting

	* freetype/freetype.h: updating the documentation for
	FT_LOAD_TARGET_XXX and FT_Render_Mode values
This commit is contained in:
David Turner 2005-12-23 13:32:06 +00:00
parent 53be6e9b1b
commit e6bb95336a
7 changed files with 137 additions and 48 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
ChangeLog
View File

@ -1,3 +1,18 @@
2005-12-23 David Turner <david@freetype.org>
* Jamfile, docs/reference/README: fix it so that "jam refdoc" works
correctly to generate the API reference in 'docs/reference'
* src/tools/docmaker/tohtml.py: update to output nicer fields lists
in the API reference
* src/base/ftobjs.c (FT_Load_Glyph): FT_LOAD_TARGET_LIGHT now
forces auto-hinting
* freetype/freetype.h: updating the documentation for
FT_LOAD_TARGET_XXX and FT_Render_Mode values
2005-12-23 suzuki toshiya <mpsuzuki@hiroshima-u.ac.jp>
* src/base/ftmac.c (FT_New_Face_From_Suitcase): Counts scalable

7
Jamfile
View File

@ -181,6 +181,13 @@ if $(DEBUG_HINTER)
SubInclude FT2_TOP tests ;
}
rule RefDoc
{
Depends $1 : all ;
NotFile $1 ;
Always $1 ;
}
actions RefDoc
{
python $(FT2_SRC)/tools/docmaker/docmaker.py --prefix=ft2 --title=FreeType-2.1.10 --output=$(DOC_DIR) $(FT2_INCLUDE)/freetype/*.h $(FT2_INCLUDE)/freetype/config/*.h $(FT2_INCLUDE)/freetype/cache/*.h

17
docs/CHANGES
View File

@ -14,6 +14,10 @@ LATEST CHANGES BETWEEN 2.2.0 and 2.1.10
II. IMPORTANT CHANGES
- the LIGHT hinting algorithm produces more pleasant results. Also,
using the FT_LOAD_TARGET_LIGHT flags within FT_Load_Glyph will always
force auto-hinting, as a special exception.
- Face metrics (face->size->metrics) and glyph metrics are no
longer rounded. If you do not round in your applications too,
you may find glyphs become blurry.
@ -43,6 +47,11 @@ LATEST CHANGES BETWEEN 2.2.0 and 2.1.10
III. MISCELLANEOUS
- the documentation for FT_LOAD_TARGET_XXX and FT_RENDER_MODE_XXX
values have been updated to better reflect their uses and differences
(one set is used to specify hinting algorithm, the other to specify
pixel rendering mode).
- FT_New_Face() & FT_New_Face_From_FSSpec() in ftmac.c are changed
to count supported scalable faces (sfnt, LWFN) only, and returns
the number of available faces via face->num_faces. Unsupported
@ -96,15 +105,15 @@ LATEST CHANGES BETWEEN 2.1.10 and 2.1.9
highly recommended to upgrade.
- FreeType didn't properly parse empty Type 1 glyphs.
- An unbound dynamic buffer growth was fixed in the PFR loader.
- Several bugs have been fixed in the cache sub-system.
- FreeType behaved incorrectly when resizing two distinct but very
close character pixel sizes through `FT_Set_Char_Size' (Savannah
bug #12263).
- The auto-hinter didn't work properly for fonts without a Unicode
charmap -- it even refused to load the glyphs.
@ -184,7 +193,7 @@ LATEST CHANGES BETWEEN 2.1.10 and 2.1.9
PIC mode (i.e., when generating a Unix shared object/dll) put
the array into the non-shared writable section of the library
since absolute pointers are not relocatable by nature.
This reduces the memory consumption by approximately 16KByte per
process linked to FreeType. We now also store the array in a
compressed form (as a trie) which saves about 20KByte of code as

3
docs/reference/README
View File

@ -1,2 +1,5 @@
After saying `make refdoc' this directory contains the FreeType API
reference. You need python to make this target.
This also works with Jam, just type 'jam refdoc' in the main directory.

124
include/freetype/freetype.h
View File

@ -2356,7 +2356,7 @@ FT_BEGIN_HEADER
* FT_LOAD_IGNORE_TRANSFORM ::
* Indicates that the glyph loader should not try to transform the
* loaded glyph image. This doesn't prevent scaling, hinting, or
* rendering.
* rendering. See @FT_Set_Transform
*
* FT_LOAD_MONOCHROME ::
* This flag is used with @FT_LOAD_RENDER to indicate that you want
@ -2379,34 +2379,9 @@ FT_BEGIN_HEADER
* See also FT_FACE_FLAG_HINTER (@FT_FACE_FLAG_XXX), FT_LOAD_FORCE_AUTO,
* and FT_LOAD_NO_HINTING above.
*
* FT_LOAD_TARGET_NORMAL ::
* Use hinting for @FT_RENDER_MODE_NORMAL.
*
* FT_LOAD_TARGET_LIGHT ::
* Use hinting for @FT_RENDER_MODE_LIGHT.
*
* FT_LOAD_TARGET_MONO ::
* Use hinting for @FT_RENDER_MODE_MONO.
*
* FT_LOAD_TARGET_LCD ::
* Use hinting for @FT_RENDER_MODE_LCD.
*
* FT_LOAD_TARGET_LCD_V ::
* Use hinting for @FT_RENDER_MODE_LCD_V.
*
* @note:
* You should use only _one_ of the FT_LOAD_TARGET_XXX values; they
* can't be ORed.
*
* However, FreeType makes a distinction between the hinting algorithm
* being used, and the pixel mode of the target bitmaps. For example,
* it is possible to use the `light' hinting algorithm and have the
* results rendered in horizontal LCD pixel mode, with code like this:
*
* FT_Load_Glyph( face, glyph_index,
* load_flags | FT_LOAD_TARGET_LIGHT );
* FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD );
*
* see also @FT_LOAD_TARGET_XXX which relate to hinting algorithm
* selection.
*/
#define FT_LOAD_DEFAULT 0x0
#define FT_LOAD_NO_SCALE 0x1
@ -2429,8 +2404,72 @@ FT_BEGIN_HEADER
/* */
/**************************************************************************
*
* @enum: FT_LOAD_TARGET_XXX
*
* @description:
* a list of values that are used to select a specific hinting
* algorithm to the glyph loader. You should OR one of these values
* to your 'load_flags' when calling @FT_Load_Glyph.
*
* note that these values are only used by the auto-hinter, and ignored
* by the native ones (e.g. the TrueType bytecode interpreter). You
* must use @FT_LOAD_FORCE_AUTOHINT to ensure that they're always used.
*
* @FT_LOAD_TARGET_LIGHT being an exception, that always forces the
* auto-hinter.
*
* @values:
* FT_LOAD_TARGET_NORMAL ::
* correspond to the default hinting algorithm, optimized for standard
* gray-level rendering. for monochrome output, use @FT_RENDER_MODE_MONO
* instead.
*
* FT_LOAD_TARGET_LIGHT ::
* correspond to a lighter hinting algorithm for non-monochrome modes.
* This will generate more glyphs that are more fuzzy but more faithful
* to their original shape. A bit like Mac OS X.
*
* As a special exception, this values *always* forces auto-hinting,
* whatever the native hinter is.
*
* FT_LOAD_TARGET_MONO ::
* strong hinting algorithm that should only be used for monochrome
* output. The result will probably be unpleasant for other rendering
* modes.
*
* FT_LOAD_TARGET_LCD ::
* a variant of @FT_LOAD_TARGET_NORMAL optimized for horizontally
* decimated LCD displays.
*
* FT_LOAD_TARGET_LCD_V ::
* a variant of @FT_LOAD_TARGET_NORMAL optimized for vertically decimated
* LCD displays.
*
* @note:
* You should use only _one_ of the FT_LOAD_TARGET_XXX values in your
* 'load_flags'. They can't be ORed.
*
* If you also use the @FT_LOAD_RENDER flag, then the output will be
* determined by the corresponding @FT_Render_Mode value. E.g.
* @FT_LOAD_TARGET_NORMAL will generate a gray-level pixmap
* (see @FT_RENDER_MODE_NORMAL)
*
* You can use a hinting algorithm that doesn't correspond to the same
* rendering mode. For example, it is possible to use the `light' hinting
* algorithm and have the results rendered in horizontal LCD pixel mode,
* with code like this:
*
* {
* FT_Load_Glyph( face, glyph_index,
* load_flags | FT_LOAD_TARGET_LIGHT );
*
* FT_Render_Glyph( face->glyph, FT_RENDER_MODE_LCD );
* }
*/
#define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 )
#define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) )
#define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL )
#define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT )
@ -2438,6 +2477,15 @@ FT_BEGIN_HEADER
#define FT_LOAD_TARGET_LCD FT_LOAD_TARGET_( FT_RENDER_MODE_LCD )
#define FT_LOAD_TARGET_LCD_V FT_LOAD_TARGET_( FT_RENDER_MODE_LCD_V )
/**
* @macro: FT_LOAD_TARGET_MODE
*
* @description:
* return the @FT_Render_Mode corresponding to a given @FT_LOAD_TARGET_XXX
* value.
*/
#define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) )
/* */
@ -2480,8 +2528,7 @@ FT_BEGIN_HEADER
/* <Description> */
/* An enumeration type that lists the render modes supported by */
/* FreeType 2. Each mode corresponds to a specific type of scanline */
/* conversion performed on the outline, as well as specific */
/* hinting optimizations. */
/* conversion performed on the outline. */
/* */
/* For bitmap fonts the `bitmap->pixel_mode' field in the */
/* @FT_GlyphSlotRec structure gives the format of the returned */
@ -2493,14 +2540,10 @@ FT_BEGIN_HEADER
/* anti-aliased bitmaps, using 256 levels of opacity. */
/* */
/* FT_RENDER_MODE_LIGHT :: */
/* This is similar to @FT_RENDER_MODE_NORMAL -- you have to use */
/* @FT_LOAD_TARGET_LIGHT in calls to @FT_Load_Glyph to get any */
/* effect since the rendering process no longer influences the */
/* positioning of glyph outlines. */
/* */
/* The resulting glyph shapes are more similar to the original, */
/* while being a bit more fuzzy (`better shapes' instead of `better */
/* contrast', so to say. */
/* This is equivalent to @FT_RENDER_MODE_NORMAL. It is only defined */
/* as a separate value because render modes are also used */
/* indirectly to define hinting algorithm selectors. See */
/* @FT_LOAD_TARGET_XXX for details. */
/* */
/* FT_RENDER_MODE_MONO :: */
/* This mode corresponds to 1-bit bitmaps. */
@ -2691,7 +2734,8 @@ FT_BEGIN_HEADER
/* */
/* <Description> */
/* Retrieves the ASCII name of a given glyph in a face. This only */
/* works for those faces where FT_HAS_GLYPH_NAME(face) returns true. */
/* works for those faces where @FT_HAS_GLYPH_NAMES(face) returns */
/* TRUE. */
/* */
/* <Input> */
/* face :: A handle to a source face object. */

5
src/base/ftobjs.c
View File

@ -523,6 +523,11 @@
FT_LOAD_NO_AUTOHINT ) ) &&
FT_DRIVER_IS_SCALABLE( driver ) &&
FT_DRIVER_USES_OUTLINES( driver ) );
/* force auto-hinting for the LIGHT hinting mode */
if ( autohint && FT_LOAD_TARGET_MODE(load_flags) == FT_RENDER_MODE_LIGHT )
load_flags |= FT_LOAD_FORCE_AUTOHINT;
if ( autohint )
{
if ( FT_DRIVER_HAS_HINTER( driver ) &&

14
src/tools/docmaker/tohtml.py
View File

@ -192,6 +192,7 @@ class HtmlFormatter(Formatter):
url = self.make_block_url( block )
return '<a href="' + url + '">' + name + '</a>' + rest
except:
# we detected a cross-reference to an unknown item
return '?' + name + '?' + rest
# look for italics and bolds
@ -246,7 +247,7 @@ class HtmlFormatter(Formatter):
def print_html_field( self, field ):
if field.name:
print "<table><tr valign=top><td><b>"+field.name+"</b></td><td>"
print "<table><tr valign=top><td><p><b>"+field.name+"</b></p></td><td>"
print self.make_html_items( field.items )
@ -288,9 +289,14 @@ class HtmlFormatter(Formatter):
def print_html_field_list( self, fields ):
print "<table cellpadding=3>"
print "<table cellpadding=3 border=0>"
for field in fields:
print "<tr valign=top><td><b>" + field.name + "</b></td><td>"
if len(field.name) > 22:
print "<tr valign=top><td colspan=0><b>"+field.name+"</b></td></tr>"
print "<tr valign=top><td></td><td>"
else:
print "<tr valign=top><td><b>" + field.name + "</b></td><td>"
self.print_html_items( field.items )
print "</td></tr>"
print "</table>"
@ -488,4 +494,4 @@ class HtmlFormatter(Formatter):
def section_dump_all( self ):
for section in self.sections:
self.section_dump( section, self.file_prefix + section.name + '.html' )