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removed the file <freetype/internal/ftlist.h> and corrected

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files that depended on it.

the ftlist.c function definitions are now FT_EXPORT_DEF
instead of FT_BASE_DEF
VER-2-0-4-PATCH
David Turner 25 years ago
parent 0ed2173597
commit 8c1b2d2c82
8 changed files with 156 additions and 26 deletions
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  1. 2
      docs/design/design-5.html
  2. 134
      docs/ft2faq.html
  3. 2
      include/freetype/internal/ftlist.h
  4. 36
      src/base/ftlist.c
  5. 2
      src/base/ftobjs.c
  6. 2
      src/cache/ftcchunk.c
  7. 2
      src/cache/ftcglyph.c
  8. 2
      src/cache/ftlru.c

2
docs/design/design-5.html
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@ -17,7 +17,7 @@
</h1>
<center>
<table width="75%">
<table width="600">
<tr><td>
<table width="100%">

134
docs/ft2faq.html
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@ -102,6 +102,22 @@
<li>
<a href="#other">Other questions</a>
<ul><p>
<li>
<a href="#other-color">How can I set the color of text rendered
by FreeType ?</a>
</li>
<li>
<a href="#other-depth">Can I use FreeType to draw text on a pixmap
with arbitrary depth ?</a>
</li>
<li>
<a href="#other-size">I set the pixel size to 8x8, but the resulting
glyphs are larger than that. Why ?</a>
</li>
<li>
<a href="#other-bbox">How can I compute the bounding box of a text
string without loading its glyphs ?</a>
</li>
<li>
<a href="#other-antialias">Which anti-aliasing algorithm is
used in the FreeType&nbsp;2 renderer?</a>
@ -141,6 +157,7 @@
to broadly communicate about it until we've got a satisfying
implementation to show.</p>
<hr>
<a name="general-long">
<h3>
I.2 Why did it take so long to release FreeType&nbsp;2?
@ -174,6 +191,7 @@
software library available on the market that supports the new Adobe
"CEF" font format.</p>
<hr>
<a name="general-unix">
<h3>
I.3 Is FreeType&nbsp;2 a Unix-only project?
@ -190,6 +208,7 @@
code is highly generic and modular to adapt even the most strict
environments like low-memory embedded systems.</p>
<hr>
<a name="general-x11">
<h3>
I.4 When will X11/XFree support anti-aliased text?
@ -222,13 +241,14 @@
basically impossible to draw anti-aliased glyphs without performing
<em>huge</em> hacks within the server.</p>
<p>Note that Keith Packard, from XFree fame, has recently started
<p>Note that Keith Packard, from XFree86 fame, has recently started
working on a new rendering model for X11 in order to support new
features (mainly transparency and anti-aliased fonts). This will be
provided through protocol extensions. The question of knowing whether
legacy X applications will be able to display anti-aliased text is still
very uncertain.</p>
<hr>
<a name="general-ft1">
<h3>
I.5 Is FreeType&nbsp;2 backwards compatible with FreeType&nbsp;1.x?
@ -244,6 +264,7 @@
while being much more powerful. We thus encourage you to adapt your
source code to it as this should not involve much work.</p>
<hr>
<a name="general-edit">
<h3>
I.6 Can I use FreeType&nbsp;2 to edit fonts or create new ones?
@ -361,6 +382,7 @@
except that you need to set the include paths, source code paths, etc.
in dialog boxes before running the compilation.</p>
<hr>
<a name="builds-config">
<h3>
II.2 How do I configure my build of the library?
@ -392,6 +414,7 @@
directory (e.g. the Unix-specific <tt>ftsystem.c</tt> that uses
memory-mapped file for i/o).</p>
<hr>
<a name="builds-modules">
<h3>
II.3 How do I select the modules I need in my build?
@ -435,6 +458,7 @@
<p>This example only emphasizes the flexibility that is left to
developers when building the library.</p>
<hr>
<a name="builds-flat">
<h3>
II.4 How do I compile all FreeType&nbsp;2 files in a single
@ -482,6 +506,7 @@
<p>Other than that, you still have the same freedom than with the good
old FreeType license. Enjoy!</p>
<hr>
<a name="autohint-work">
<h3>
III.2 How does the auto-hinter work?
@ -509,6 +534,7 @@
constraint system. That could be used to support native hints in
Type&nbsp;1/Type&nbsp;2 fonts, for example.</p>
<hr>
<a name="autohint-cjk">
<h3>
III.3 Why does the auto-hinter doesn't work correctly with CJK
@ -539,6 +565,111 @@
</td></tr>
<tr><td>
<a name="other-depth">
<h3>
IV.1 Can I use FreeType to draw text on a pixmap with arbitratry depth ?
</h3>
<p>No directly, as FreeType is a font library, not a general purpose
graphics library or text rendering service. However, note that the
anti-aliased renderer allows you to convert a vectorial glyph outline
into a list of "spans" (i.e. horizontal pixel segments with same coverage)
that can be rendered through user-provided callbacks.</p>
<p>By providing the appropriate span callback, you can render anti-aliased
text to any kind of surface. You can also use any color or fill
pattern/image if you want to. This process is called
<em>direct rendering</em>. For more information, please read the
documentation contained in the following files:</p>
<ul>
<li><p>
<b><tt>&lt;freetype/ftimage.h&gt;</tt></b> contains the definition
of the <tt>FT_Raster_Params</tt> type used with direct rendering.
</p></li>
<li><p>
<b><tt>&lt;freetype/ftoutln.h&gt;</tt></b> contains the definition
of the <tt>FT_Outline_Render</tt> function that can be used to
convert vectorial outlines to span lists.
</p></li>
</ul>
<p>Here's some code that uses them:</p>
<font color="blue"><pre>
FT_Raster_Params params;
FT_Outline outline;
.. load vectorial glyph in "outline"
params.flags = ft_raster_flag_aa | ft_raster_flag_direct;
params.gray_spans = (FT_Raster_Span_Func)your_own_span_function_here;
params.user = your_own_data_pointer;
error = FT_Outline_Render( library, &amp;outline, &amp;params );
</pre></font>
<p>Note that direct rendering is <em>not</em> available with monochrome
output, as the current renderer uses a two-pass algorithm to generate
glyphs with correct drop-out control.</p>
<hr>
<a name="other-color">
<h3>
IV.2 How can I set the color of text rendered by FreeType ?
</h3>
<p>Basically, you can't do that, because FreeType is simply a font
library. In general, you'll need to use your favorite graphics library
to draw the FreeType glyphs with the appropriate color.</p>
<p>Note that for anti-aliased glyphs, you can "set the color" by using
<em>direct rendering</em> as described in <a href="#other-depth">this
answer</a></p>
<hr>
<a name="other-size">
<h3>
IV.3 I set the pixel size to 8x8, but the resulting glyphs are larger
(or smaller) than that. Why ??
</h3>
<p>A lot of people have a hard time understanding this topic, because
they think of glyphs as fixed-width/height "cells", like those of
fonts used in terminals/consoles. This assumption is simply not valid
with most "modern" font formats, even bitmapped-based ones like
PCF or BDF.</p>
<p>Be aware that the <em>character size</em> that is set either through
<tt>FT_Set_Char_Size</tt> or <tt>FT_Set_Pixel_Sizes</tt> isn't directly
related to the dimension of the glyph bitmaps generated.</p>
<p>Rather, the character size is indeed the size of
<em>an abstract square</em>, called the <em>EM</em>, used by typographers
to design fonts. Scaling two distinct fonts to the same character size, be
it expressed in points or pixels, will generally result in bitmaps with
<em>distinct dimensions</em> !</p>
<p>Note that historically, the EM corresponded to the width of a capital
"M" in Latin typefaces. However, later improvements in typography led to
the designs that greatly detract from this rule. Today, it is not possible
to connect the EM size to a specific font "feature" in a reliable way.</p>
<hr>
<a name="other-bbox">
<h3>
IV.4 How can I compute the bounding box of a given string of text without
loading its glyphs before ?
</h3>
<p>A lot of people want to be able to compute the size in pixels of a simple
string of text with minimal overhead. For example, that can be useful to
draw centered text within a button.</p>
<a name="other-antialias">
<h3>
IV.1 Which anti-aliasing algorithm is used by FreeType&nbsp;2?</h3>
@ -565,6 +696,7 @@
<p>We will try to document its design in a later document, though this
is not a priority for now.</p>
<hr>
<a name="other-opentype">
<h3>
IV.2 When will FreeType&nbsp;2 support OpenType?

2
include/freetype/internal/ftlist.h
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@ -1,2 +0,0 @@
#include <freetype/ftlist.h>

36
src/base/ftlist.c
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@ -23,7 +23,7 @@
/*************************************************************************/
#include <freetype/internal/ftlist.h>
#include <freetype/ftlist.h>
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftobjs.h>
@ -40,8 +40,8 @@
/* documentation is in ftlist.h */
FT_BASE_DEF( FT_ListNode ) FT_List_Find( FT_List list,
void* data )
FT_EXPORT_DEF( FT_ListNode ) FT_List_Find( FT_List list,
void* data )
{
FT_ListNode cur;
@ -61,8 +61,8 @@
/* documentation is in ftlist.h */
FT_BASE_DEF( void ) FT_List_Add( FT_List list,
FT_ListNode node )
FT_EXPORT_DEF( void ) FT_List_Add( FT_List list,
FT_ListNode node )
{
FT_ListNode before = list->tail;
@ -81,8 +81,8 @@
/* documentation is in ftlist.h */
FT_BASE_DEF( void ) FT_List_Insert( FT_List list,
FT_ListNode node )
FT_EXPORT_DEF( void ) FT_List_Insert( FT_List list,
FT_ListNode node )
{
FT_ListNode after = list->head;
@ -101,8 +101,8 @@
/* documentation is in ftlist.h */
FT_BASE_DEF( void ) FT_List_Remove( FT_List list,
FT_ListNode node )
FT_EXPORT_DEF( void ) FT_List_Remove( FT_List list,
FT_ListNode node )
{
FT_ListNode before, after;
@ -124,8 +124,8 @@
/* documentation is in ftlist.h */
FT_BASE_DEF( void ) FT_List_Up( FT_List list,
FT_ListNode node )
FT_EXPORT_DEF( void ) FT_List_Up( FT_List list,
FT_ListNode node )
{
FT_ListNode before, after;
@ -153,9 +153,9 @@
/* documentation is in ftlist.h */
FT_BASE_DEF( FT_Error ) FT_List_Iterate( FT_List list,
FT_List_Iterator iterator,
void* user )
FT_EXPORT_DEF( FT_Error ) FT_List_Iterate( FT_List list,
FT_List_Iterator iterator,
void* user )
{
FT_ListNode cur = list->head;
FT_Error error = FT_Err_Ok;
@ -179,10 +179,10 @@
/* documentation is in ftlist.h */
FT_BASE_DEF( void ) FT_List_Finalize( FT_List list,
FT_List_Destructor destroy,
FT_Memory memory,
void* user )
FT_EXPORT_DEF( void ) FT_List_Finalize( FT_List list,
FT_List_Destructor destroy,
FT_Memory memory,
void* user )
{
FT_ListNode cur;

2
src/base/ftobjs.c
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@ -16,8 +16,8 @@
/***************************************************************************/
#include <freetype/ftlist.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/ftlist.h>
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftstream.h>

2
src/cache/ftcchunk.c vendored
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@ -17,9 +17,9 @@
#include <freetype/cache/ftcchunk.h>
#include <freetype/ftlist.h>
#include <freetype/fterrors.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/ftlist.h>
#include <freetype/fterrors.h>

2
src/cache/ftcglyph.c vendored
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@ -18,8 +18,8 @@
#include <freetype/cache/ftcglyph.h>
#include <freetype/fterrors.h>
#include <freetype/ftlist.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/ftlist.h>
#include <freetype/internal/ftdebug.h>

2
src/cache/ftlru.c vendored
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@ -17,8 +17,8 @@
#include <freetype/cache/ftlru.h>
#include <freetype/ftlist.h>
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/ftlist.h>
static

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