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| author | Chris Liddell <chris.liddell@artifex.com> | 2018-04-03 15:49:48 +0100 |
|---|---|---|
| committer | Chris Liddell <chris.liddell@artifex.com> | 2018-05-18 13:17:15 +0100 |
| commit | 9cb169b6b260f650aac2c3c7ed7af0f345ee0707 (patch) | |
| tree | 9b4d2ee77a0dbe43cb0364da2444686ed7302646 /freetype/docs/reference/ft2-outline_processing.html | |
| parent | ddace435eb99ea1c8a517f4ec94307cfe0743bce (diff) | |
| download | ghostpdl-9cb169b6b260f650aac2c3c7ed7af0f345ee0707.tar.gz | |
Work around a behaviour change in freetype > 2.8
Freetype will throw an error when we try to retrieve the glyph if the x/y
advance values are too big to fit in a 16.16 fixed point value.
Since we have no need of those values, set them to zero, and avoid the error.
Bring freetype up to 2.9.1
Plus the gs makefile changes to support the new version.
Reapply "Work around a change in the zlib API for 1.2.11"
for Freetype
commit: 08482c582115a1396d0fd9186011008f889a61c5
Diffstat (limited to 'freetype/docs/reference/ft2-outline_processing.html')
| -rw-r--r-- | freetype/docs/reference/ft2-outline_processing.html | 36 |
1 files changed, 19 insertions, 17 deletions
diff --git a/freetype/docs/reference/ft2-outline_processing.html b/freetype/docs/reference/ft2-outline_processing.html index b741e87a6..3b12f93b2 100644 --- a/freetype/docs/reference/ft2-outline_processing.html +++ b/freetype/docs/reference/ft2-outline_processing.html @@ -1,9 +1,9 @@ <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" -"http://www.w3.org/TR/html4/loose.dtd"> +"https://www.w3.org/TR/html4/loose.dtd"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> -<title>FreeType-2.7 API Reference</title> +<title>FreeType-2.9.1 API Reference</title> <style type="text/css"> a:link { color: #0000EF; } a:visited { color: #51188E; } @@ -100,7 +100,7 @@ <body> <table class="index-toc-link"><tr><td class="left">[<a href="ft2-index.html">Index</a>]</td><td class="right">[<a href="ft2-toc.html">TOC</a>]</td></tr></table> -<h1>FreeType-2.7 API Reference</h1> +<h1>FreeType-2.9.1 API Reference</h1> <h1 id="outline_processing">Outline Processing</h1> <h2>Synopsis</h2> @@ -157,8 +157,8 @@ </td></tr> <tr><td class="val" id="tags">tags</td><td class="desc"> <p>A pointer to an array of ‘n_points’ chars, giving each outline point's type.</p> -<p>If bit 0 is unset, the point is ‘off’ the curve, i.e., a Bézier control point, while it is ‘on’ if set.</p> -<p>Bit 1 is meaningful for ‘off’ points only. If set, it indicates a third-order Bézier arc control point; and a second-order control point if unset.</p> +<p>If bit 0 is unset, the point is ‘off’ the curve, i.e., a Bezier control point, while it is ‘on’ if set.</p> +<p>Bit 1 is meaningful for ‘off’ points only. If set, it indicates a third-order Bezier arc control point; and a second-order control point if unset.</p> <p>If bit 2 is set, bits 5-7 contain the drop-out mode (as defined in the OpenType specification; the value is the same as the argument to the SCANMODE instruction).</p> <p>Bits 3 and 4 are reserved for internal purposes.</p> </td></tr> @@ -256,7 +256,6 @@ <h4>note</h4> <p>If the outline's ‘owner’ field is not set, only the outline descriptor will be released.</p> -<p>The reason why this function takes an ‘library’ parameter is simply to use ft_mem_free().</p> <hr> <table class="index-toc-link"><tr><td class="left">[<a href="ft2-index.html">Index</a>]</td><td class="middle">[<a href="#">Top</a>]</td><td class="right">[<a href="ft2-toc.html">TOC</a>]</td></tr></table></div> @@ -410,6 +409,9 @@ <p>Embolden an outline. The new outline will be ‘xstrength’ pixels wider and ‘ystrength’ pixels higher. Otherwise, it is similar to <a href="ft2-outline_processing.html#FT_Outline_Embolden">FT_Outline_Embolden</a>, which uses the same strength in both directions.</p> +<h4>since</h4> +<p>2.4.10</p> + <hr> <table class="index-toc-link"><tr><td class="left">[<a href="ft2-index.html">Index</a>]</td><td class="middle">[<a href="#">Top</a>]</td><td class="right">[<a href="ft2-toc.html">TOC</a>]</td></tr></table></div> @@ -472,7 +474,7 @@ <a href="ft2-basic_types.html#FT_BBox">FT_BBox</a> *acbox ); </pre> -<p>Return an outline's ‘control box’. The control box encloses all the outline's points, including Bézier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bézier outside arcs).</p> +<p>Return an outline's ‘control box’. The control box encloses all the outline's points, including Bezier control points. Though it coincides with the exact bounding box for most glyphs, it can be slightly larger in some situations (like when rotating an outline that contains Bezier outside arcs).</p> <p>Computing the control box is very fast, while getting the bounding box can take much more time as it needs to walk over all segments and arcs in the outline. To get the latter, you can use the ‘ftbbox’ component, which is dedicated to this single task.</p> <h4>input</h4> @@ -504,7 +506,7 @@ <a href="ft2-basic_types.html#FT_BBox">FT_BBox</a> *abbox ); </pre> -<p>Compute the exact bounding box of an outline. This is slower than computing the control box. However, it uses an advanced algorithm that returns <i>very</i> quickly when the two boxes coincide. Otherwise, the outline Bézier arcs are traversed to extract their extrema.</p> +<p>Compute the exact bounding box of an outline. This is slower than computing the control box. However, it uses an advanced algorithm that returns <i>very</i> quickly when the two boxes coincide. Otherwise, the outline Bezier arcs are traversed to extract their extrema.</p> <h4>input</h4> <table class="fields"> @@ -619,7 +621,7 @@ <span class="keyword">void</span>* user ); </pre> -<p>Walk over an outline's structure to decompose it into individual segments and Bézier arcs. This function also emits ‘move to’ operations to indicate the start of new contours in the outline.</p> +<p>Walk over an outline's structure to decompose it into individual segments and Bezier arcs. This function also emits ‘move to’ operations to indicate the start of new contours in the outline.</p> <h4>input</h4> <table class="fields"> @@ -665,7 +667,7 @@ } <b>FT_Outline_Funcs</b>; </pre> -<p>A structure to hold various function pointers used during outline decomposition in order to emit segments, conic, and cubic Béziers.</p> +<p>A structure to hold various function pointers used during outline decomposition in order to emit segments, conic, and cubic Beziers.</p> <h4>fields</h4> <table class="fields"> @@ -676,10 +678,10 @@ <p>The segment emitter.</p> </td></tr> <tr><td class="val" id="conic_to">conic_to</td><td class="desc"> -<p>The second-order Bézier arc emitter.</p> +<p>The second-order Bezier arc emitter.</p> </td></tr> <tr><td class="val" id="cubic_to">cubic_to</td><td class="desc"> -<p>The third-order Bézier arc emitter.</p> +<p>The third-order Bezier arc emitter.</p> </td></tr> <tr><td class="val" id="shift">shift</td><td class="desc"> <p>The shift that is applied to coordinates before they are sent to the emitter.</p> @@ -693,7 +695,7 @@ <p>The point coordinates sent to the emitters are the transformed version of the original coordinates (this is important for high accuracy during scan-conversion). The transformation is simple:</p> <pre class="colored"> x' = (x << shift) - delta - y' = (x << shift) - delta + y' = (y << shift) - delta </pre> <p>Set the values of ‘shift’ and ‘delta’ to 0 to get the original point coordinates.</p> @@ -773,7 +775,7 @@ </pre> <p>A function pointer type used to describe the signature of a ‘conic to’ function during outline walking or decomposition.</p> -<p>A ‘conic to’ is emitted to indicate a second-order Bézier arc in the outline.</p> +<p>A ‘conic to’ is emitted to indicate a second-order Bezier arc in the outline.</p> <h4>input</h4> <table class="fields"> @@ -808,15 +810,15 @@ </pre> <p>A function pointer type used to describe the signature of a ‘cubic to’ function during outline walking or decomposition.</p> -<p>A ‘cubic to’ is emitted to indicate a third-order Bézier arc.</p> +<p>A ‘cubic to’ is emitted to indicate a third-order Bezier arc.</p> <h4>input</h4> <table class="fields"> <tr><td class="val" id="control1">control1</td><td class="desc"> -<p>A pointer to the first Bézier control point.</p> +<p>A pointer to the first Bezier control point.</p> </td></tr> <tr><td class="val" id="control2">control2</td><td class="desc"> -<p>A pointer to the second Bézier control point.</p> +<p>A pointer to the second Bezier control point.</p> </td></tr> <tr><td class="val" id="to">to</td><td class="desc"> <p>A pointer to the target end point.</p> |