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-
-
+ <nav class="md-nav" aria-label="Format-Specific API" data-md-level="1">
+ <label class="md-nav__title" for="__nav_6">
+ <span class="md-nav__icon md-icon"></span>
+ Format-Specific API
+ </label>
+ <ul class="md-nav__list" data-md-scrollfix>
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-multiple_masters.html" title="Multiple Masters" class="md-nav__link">
- Multiple Masters
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-multiple_masters.html" class="md-nav__link">
+ Multiple Masters
+ </a>
+ </li>
+
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-truetype_tables.html" class="md-nav__link">
+ TrueType Tables
+ </a>
+ </li>
+
-
- <li class="md-nav__item">
- <a href="ft2-truetype_tables.html" title="TrueType Tables" class="md-nav__link">
- TrueType Tables
- </a>
- </li>
-
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-type1_tables.html" class="md-nav__link">
+ Type 1 Tables
+ </a>
+ </li>
+
-
- <li class="md-nav__item">
- <a href="ft2-type1_tables.html" title="Type 1 Tables" class="md-nav__link">
- Type 1 Tables
- </a>
- </li>
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-sfnt_names.html" title="SFNT Names" class="md-nav__link">
- SFNT Names
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-sfnt_names.html" class="md-nav__link">
+ SFNT Names
+ </a>
+ </li>
+
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-bdf_fonts.html" class="md-nav__link">
+ BDF and PCF Files
+ </a>
+ </li>
+
-
- <li class="md-nav__item">
- <a href="ft2-bdf_fonts.html" title="BDF and PCF Files" class="md-nav__link">
- BDF and PCF Files
- </a>
- </li>
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-cid_fonts.html" title="CID Fonts" class="md-nav__link">
- CID Fonts
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-cid_fonts.html" class="md-nav__link">
+ CID Fonts
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-pfr_fonts.html" title="PFR Fonts" class="md-nav__link">
- PFR Fonts
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-pfr_fonts.html" class="md-nav__link">
+ PFR Fonts
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-winfnt_fonts.html" title="Window FNT Files" class="md-nav__link">
- Window FNT Files
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-winfnt_fonts.html" class="md-nav__link">
+ Window FNT Files
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-font_formats.html" title="Font Formats" class="md-nav__link">
- Font Formats
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-svg_fonts.html" class="md-nav__link">
+ OpenType SVG Fonts
+ </a>
+ </li>
+
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-font_formats.html" class="md-nav__link">
+ Font Formats
+ </a>
+ </li>
+
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-gasp_table.html" class="md-nav__link">
+ Gasp Table
+ </a>
+ </li>
+
- <li class="md-nav__item">
- <a href="ft2-gasp_table.html" title="Gasp Table" class="md-nav__link">
- Gasp Table
- </a>
- </li>
-
-
- </ul>
- </nav>
- </li>
+
+ </ul>
+ </nav>
+ </li>
+
-
- <li class="md-nav__item md-nav__item--nested">
-
- <input class="md-toggle md-nav__toggle" data-md-toggle="nav-6" type="checkbox" id="nav-6">
+
+
+
- <label class="md-nav__link" for="nav-6">
- Controlling FreeType Modules
- </label>
- <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
- <label class="md-nav__title" for="nav-6">
+ <li class="md-nav__item md-nav__item--nested">
+
+
+ <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_7" type="checkbox" id="__nav_7" >
+
+ <label class="md-nav__link" for="__nav_7">
Controlling FreeType Modules
+ <span class="md-nav__icon md-icon"></span>
</label>
- <ul class="md-nav__list" data-md-scrollfix>
-
-
-
+ <nav class="md-nav" aria-label="Controlling FreeType Modules" data-md-level="1">
+ <label class="md-nav__title" for="__nav_7">
+ <span class="md-nav__icon md-icon"></span>
+ Controlling FreeType Modules
+ </label>
+ <ul class="md-nav__list" data-md-scrollfix>
-
-
-
- <li class="md-nav__item">
- <a href="ft2-auto_hinter.html" title="The auto-hinter" class="md-nav__link">
- The auto-hinter
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-auto_hinter.html" class="md-nav__link">
+ The auto-hinter
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-cff_driver.html" title="The CFF driver" class="md-nav__link">
- The CFF driver
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-cff_driver.html" class="md-nav__link">
+ The CFF driver
+ </a>
+ </li>
+
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-t1_cid_driver.html" class="md-nav__link">
+ The Type 1 and CID drivers
+ </a>
+ </li>
+
-
- <li class="md-nav__item">
- <a href="ft2-t1_cid_driver.html" title="The Type 1 and CID drivers" class="md-nav__link">
- The Type 1 and CID drivers
- </a>
- </li>
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-tt_driver.html" title="The TrueType driver" class="md-nav__link">
- The TrueType driver
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-tt_driver.html" class="md-nav__link">
+ The TrueType driver
+ </a>
+ </li>
+
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-pcf_driver.html" class="md-nav__link">
+ The PCF driver
+ </a>
+ </li>
+
-
- <li class="md-nav__item">
- <a href="ft2-pcf_driver.html" title="The PCF driver" class="md-nav__link">
- The PCF driver
- </a>
- </li>
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-properties.html" title="Driver properties" class="md-nav__link">
- Driver properties
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-ot_svg_driver.html" class="md-nav__link">
+ The SVG driver
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-parameter_tags.html" title="Parameter Tags" class="md-nav__link">
- Parameter Tags
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-properties.html" class="md-nav__link">
+ Driver properties
+ </a>
+ </li>
+
-
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-parameter_tags.html" class="md-nav__link">
+ Parameter Tags
+ </a>
+ </li>
+
- <li class="md-nav__item">
- <a href="ft2-lcd_rendering.html" title="Subpixel Rendering" class="md-nav__link">
- Subpixel Rendering
- </a>
- </li>
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-lcd_rendering.html" class="md-nav__link">
+ Subpixel Rendering
+ </a>
+ </li>
+
-
- </ul>
- </nav>
- </li>
+
+ </ul>
+ </nav>
+ </li>
+
-
- <li class="md-nav__item md-nav__item--nested">
-
- <input class="md-toggle md-nav__toggle" data-md-toggle="nav-7" type="checkbox" id="nav-7">
+
+
+
- <label class="md-nav__link" for="nav-7">
- Cache Sub-System
- </label>
- <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
- <label class="md-nav__title" for="nav-7">
+ <li class="md-nav__item md-nav__item--nested">
+
+
+ <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_8" type="checkbox" id="__nav_8" >
+
+ <label class="md-nav__link" for="__nav_8">
Cache Sub-System
+ <span class="md-nav__icon md-icon"></span>
</label>
- <ul class="md-nav__list" data-md-scrollfix>
-
-
-
+ <nav class="md-nav" aria-label="Cache Sub-System" data-md-level="1">
+ <label class="md-nav__title" for="__nav_8">
+ <span class="md-nav__icon md-icon"></span>
+ Cache Sub-System
+ </label>
+ <ul class="md-nav__list" data-md-scrollfix>
-
-
-
- <li class="md-nav__item">
- <a href="ft2-cache_subsystem.html" title="Cache Sub-System" class="md-nav__link">
- Cache Sub-System
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-cache_subsystem.html" class="md-nav__link">
+ Cache Sub-System
+ </a>
+ </li>
+
-
- </ul>
- </nav>
- </li>
+
+ </ul>
+ </nav>
+ </li>
+
-
- <li class="md-nav__item md-nav__item--nested">
-
- <input class="md-toggle md-nav__toggle" data-md-toggle="nav-8" type="checkbox" id="nav-8">
+
+
+
- <label class="md-nav__link" for="nav-8">
- Support API
- </label>
- <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
- <label class="md-nav__title" for="nav-8">
+ <li class="md-nav__item md-nav__item--nested">
+
+
+ <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_9" type="checkbox" id="__nav_9" >
+
+ <label class="md-nav__link" for="__nav_9">
Support API
- </label>
- <ul class="md-nav__list" data-md-scrollfix>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-computations.html" title="Computations" class="md-nav__link">
- Computations
- </a>
- </li>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-list_processing.html" title="List Processing" class="md-nav__link">
- List Processing
- </a>
- </li>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-outline_processing.html" title="Outline Processing" class="md-nav__link">
- Outline Processing
- </a>
- </li>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-quick_advance.html" title="Quick retrieval of advance values" class="md-nav__link">
- Quick retrieval of advance values
- </a>
- </li>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-bitmap_handling.html" title="Bitmap Handling" class="md-nav__link">
- Bitmap Handling
- </a>
- </li>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-raster.html" title="Scanline Converter" class="md-nav__link">
- Scanline Converter
- </a>
- </li>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-glyph_stroker.html" title="Glyph Stroker" class="md-nav__link">
- Glyph Stroker
- </a>
- </li>
-
-
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-system_interface.html" title="System Interface" class="md-nav__link">
- System Interface
- </a>
- </li>
-
-
-
-
+ <span class="md-nav__icon md-icon"></span>
+ </label>
+ <nav class="md-nav" aria-label="Support API" data-md-level="1">
+ <label class="md-nav__title" for="__nav_9">
+ <span class="md-nav__icon md-icon"></span>
+ Support API
+ </label>
+ <ul class="md-nav__list" data-md-scrollfix>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-computations.html" class="md-nav__link">
+ Computations
+ </a>
+ </li>
+
-
- <li class="md-nav__item">
- <a href="ft2-module_management.html" title="Module Management" class="md-nav__link">
- Module Management
- </a>
- </li>
-
-
-
-
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-list_processing.html" class="md-nav__link">
+ List Processing
+ </a>
+ </li>
+
- <li class="md-nav__item">
- <a href="ft2-gzip.html" title="GZIP Streams" class="md-nav__link">
- GZIP Streams
- </a>
- </li>
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-outline_processing.html" class="md-nav__link">
+ Outline Processing
+ </a>
+ </li>
+
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-quick_advance.html" class="md-nav__link">
+ Quick retrieval of advance values
+ </a>
+ </li>
+
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-bitmap_handling.html" class="md-nav__link">
+ Bitmap Handling
+ </a>
+ </li>
+
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-raster.html" class="md-nav__link">
+ Scanline Converter
+ </a>
+ </li>
+
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-glyph_stroker.html" class="md-nav__link">
+ Glyph Stroker
+ </a>
+ </li>
+
- <li class="md-nav__item">
- <a href="ft2-lzw.html" title="LZW Streams" class="md-nav__link">
- LZW Streams
- </a>
- </li>
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-system_interface.html" class="md-nav__link">
+ System Interface
+ </a>
+ </li>
+
-
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-module_management.html" class="md-nav__link">
+ Module Management
+ </a>
+ </li>
+
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-gzip.html" class="md-nav__link">
+ GZIP Streams
+ </a>
+ </li>
+
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-lzw.html" class="md-nav__link">
+ LZW Streams
+ </a>
+ </li>
+
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-bzip2.html" class="md-nav__link">
+ BZIP2 Streams
+ </a>
+ </li>
+
- <li class="md-nav__item">
- <a href="ft2-bzip2.html" title="BZIP2 Streams" class="md-nav__link">
- BZIP2 Streams
- </a>
- </li>
+
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-debugging_apis.html" class="md-nav__link">
+ External Debugging APIs
+ </a>
+ </li>
+
-
- </ul>
- </nav>
- </li>
+
+ </ul>
+ </nav>
+ </li>
+
-
- <li class="md-nav__item md-nav__item--nested">
-
- <input class="md-toggle md-nav__toggle" data-md-toggle="nav-9" type="checkbox" id="nav-9">
+
+
+
- <label class="md-nav__link" for="nav-9">
- Error Codes
- </label>
- <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
- <label class="md-nav__title" for="nav-9">
+ <li class="md-nav__item md-nav__item--nested">
+
+
+ <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_10" type="checkbox" id="__nav_10" >
+
+ <label class="md-nav__link" for="__nav_10">
Error Codes
+ <span class="md-nav__icon md-icon"></span>
</label>
- <ul class="md-nav__list" data-md-scrollfix>
-
-
+ <nav class="md-nav" aria-label="Error Codes" data-md-level="1">
+ <label class="md-nav__title" for="__nav_10">
+ <span class="md-nav__icon md-icon"></span>
+ Error Codes
+ </label>
+ <ul class="md-nav__list" data-md-scrollfix>
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-error_enumerations.html" title="Error Enumerations" class="md-nav__link">
- Error Enumerations
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-error_enumerations.html" class="md-nav__link">
+ Error Enumerations
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-error_code_values.html" title="Error Code Values" class="md-nav__link">
- Error Code Values
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-error_code_values.html" class="md-nav__link">
+ Error Code Values
+ </a>
+ </li>
+
-
- </ul>
- </nav>
- </li>
+
+ </ul>
+ </nav>
+ </li>
+
-
- <li class="md-nav__item md-nav__item--nested">
-
- <input class="md-toggle md-nav__toggle" data-md-toggle="nav-10" type="checkbox" id="nav-10">
+
+
+
- <label class="md-nav__link" for="nav-10">
- Miscellaneous
- </label>
- <nav class="md-nav" data-md-component="collapsible" data-md-level="1">
- <label class="md-nav__title" for="nav-10">
+ <li class="md-nav__item md-nav__item--nested">
+
+
+ <input class="md-nav__toggle md-toggle" data-md-toggle="__nav_11" type="checkbox" id="__nav_11" >
+
+ <label class="md-nav__link" for="__nav_11">
Miscellaneous
+ <span class="md-nav__icon md-icon"></span>
</label>
- <ul class="md-nav__list" data-md-scrollfix>
-
-
-
+ <nav class="md-nav" aria-label="Miscellaneous" data-md-level="1">
+ <label class="md-nav__title" for="__nav_11">
+ <span class="md-nav__icon md-icon"></span>
+ Miscellaneous
+ </label>
+ <ul class="md-nav__list" data-md-scrollfix>
-
-
-
- <li class="md-nav__item">
- <a href="ft2-gx_validation.html" title="TrueTypeGX/AAT Validation" class="md-nav__link">
- TrueTypeGX/AAT Validation
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-gx_validation.html" class="md-nav__link">
+ TrueTypeGX/AAT Validation
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-incremental.html" title="Incremental Loading" class="md-nav__link">
- Incremental Loading
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-incremental.html" class="md-nav__link">
+ Incremental Loading
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-truetype_engine.html" title="The TrueType Engine" class="md-nav__link">
- The TrueType Engine
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-truetype_engine.html" class="md-nav__link">
+ The TrueType Engine
+ </a>
+ </li>
+
-
-
-
-
-
- <li class="md-nav__item">
- <a href="ft2-ot_validation.html" title="OpenType Validation" class="md-nav__link">
- OpenType Validation
- </a>
- </li>
+
+
+
+
+ <li class="md-nav__item">
+ <a href="ft2-ot_validation.html" class="md-nav__link">
+ OpenType Validation
+ </a>
+ </li>
+
-
- </ul>
- </nav>
- </li>
+
+ </ul>
+ </nav>
+ </li>
+
</ul>
</div>
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+
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<h1 id="basic-data-types">Basic Data Types<a class="headerlink" href="#basic-data-types" title="Permanent link">¶</a></h1>
<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2>
-<p>This section contains the basic data types defined by FreeType 2, ranging from simple scalar types to bitmap descriptors. More font-specific structures are defined in a different section.</p>
+<p>This section contains the basic data types defined by FreeType 2, ranging from simple scalar types to bitmap descriptors. More font-specific structures are defined in a different section. Note that FreeType does not use floating-point data types. Fractional values are represented by fixed-point integers, with lower bits storing the fractional part.</p>
<h2 id="ft_byte">FT_Byte<a class="headerlink" href="#ft_byte" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPES_H (freetype/fttypes.h).</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> <span class="keyword">char</span> <b>FT_Byte</b>;
<h2 id="ft_uint32">FT_UInt32<a class="headerlink" href="#ft_uint32" title="Permanent link">¶</a></h2>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> XXX <b>FT_UInt32</b>;
</code></pre></div>
-
<hr>
<h2 id="ft_int64">FT_Int64<a class="headerlink" href="#ft_int64" title="Permanent link">¶</a></h2>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">signed</span> XXX <b>FT_Int64</b>;
</code></pre></div>
-
<hr>
<h2 id="ft_uint64">FT_UInt64<a class="headerlink" href="#ft_uint64" title="Permanent link">¶</a></h2>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">unsigned</span> XXX <b>FT_UInt64</b>;
</code></pre></div>
-
<hr>
<h2 id="ft_short">FT_Short<a class="headerlink" href="#ft_short" title="Permanent link">¶</a></h2>
<p>A simple structure used to store a 2D vector; coordinates are of the FT_Pos type.</p>
<h4>fields</h4>
-
<table class="fields">
<tr><td class="val" id="x">x</td><td class="desc">
<p>The horizontal coordinate.</p>
<p>A structure used to hold an outline's bounding box, i.e., the coordinates of its extrema in the horizontal and vertical directions.</p>
<h4>fields</h4>
-
<table class="fields">
<tr><td class="val" id="xmin">xMin</td><td class="desc">
<p>The horizontal minimum (left-most).</p>
y' = x*yx + y*yy
</code></pre></div></p>
<h4>fields</h4>
-
<table class="fields">
<tr><td class="val" id="xx">xx</td><td class="desc">
<p>Matrix coefficient.</p>
<p>A simple structure used to store a 2D vector unit vector. Uses FT_F2Dot14 types.</p>
<h4>fields</h4>
-
<table class="fields">
<tr><td class="val" id="x">x</td><td class="desc">
<p>Horizontal coordinate.</p>
<div class = "codehilite"><pre><code> <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Data_
{
<span class="keyword">const</span> <a href="ft2-basic_types.html#ft_byte">FT_Byte</a>* pointer;
- <a href="ft2-basic_types.html#ft_int">FT_Int</a> length;
+ <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> length;
} <b>FT_Data</b>;
</code></pre></div>
<p>Read-only binary data represented as a pointer and a length.</p>
<h4>fields</h4>
-
<table class="fields">
<tr><td class="val" id="pointer">pointer</td><td class="desc">
<p>The data.</p>
<h2 id="ft_make_tag">FT_MAKE_TAG<a class="headerlink" href="#ft_make_tag" title="Permanent link">¶</a></h2>
<p>Defined in FT_TYPES_H (freetype/fttypes.h).</p>
-<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_MAKE_TAG</b>( _x1, _x2, _x3, _x4 ) \
- (<a href="ft2-basic_types.html#ft_tag">FT_Tag</a>) \
- ( ( (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x1 << 24 ) | \
- ( (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x2 << 16 ) | \
- ( (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x3 << 8 ) | \
- (<a href="ft2-basic_types.html#ft_ulong">FT_ULong</a>)_x4 )
+<div class = "codehilite"><pre><code>#<span class="keyword">define</span> <b>FT_MAKE_TAG</b>( _x1, _x2, _x3, _x4 ) \
+ ( ( FT_STATIC_BYTE_CAST( <a href="ft2-basic_types.html#ft_tag">FT_Tag</a>, _x1 ) << 24 ) | \
+ ( FT_STATIC_BYTE_CAST( <a href="ft2-basic_types.html#ft_tag">FT_Tag</a>, _x2 ) << 16 ) | \
+ ( FT_STATIC_BYTE_CAST( <a href="ft2-basic_types.html#ft_tag">FT_Tag</a>, _x3 ) << 8 ) | \
+ FT_STATIC_BYTE_CAST( <a href="ft2-basic_types.html#ft_tag">FT_Tag</a>, _x4 ) )
</code></pre></div>
-<p>This macro converts four-letter tags that are used to label TrueType tables into an unsigned long, to be used within FreeType.</p>
+<p>This macro converts four-letter tags that are used to label TrueType tables into an <code>FT_Tag</code> type, to be used within FreeType.</p>
<h4>note</h4>
<p>The produced values <strong>must</strong> be 32-bit integers. Don't redefine this macro.</p>
<p>Some FreeType object contains a <code>generic</code> field, of type <code>FT_Generic</code>, which usage is left to client applications and font servers.</p>
<p>It can be used to store a pointer to client-specific data, as well as the address of a ‘finalizer’ function, which will be called by FreeType when the object is destroyed (for example, the previous client example would put the address of the glyph cache destructor in the <code>finalizer</code> field).</p>
<h4>fields</h4>
-
<table class="fields">
<tr><td class="val" id="data">data</td><td class="desc">
<p>A typeless pointer to any client-specified data. This field is completely ignored by the FreeType library.</p>
<p>A structure used to describe a bitmap or pixmap to the raster. Note that we now manage pixmaps of various depths through the <code>pixel_mode</code> field.</p>
<h4>fields</h4>
-
<table class="fields">
<tr><td class="val" id="rows">rows</td><td class="desc">
<p>The number of bitmap rows.</p>
</td></tr>
</table>
+<h4>note</h4>
+
+<p><code>width</code> and <code>rows</code> refer to the <em>physical</em> size of the bitmap, not the <em>logical</em> one. For example, if <code><a href="ft2-basic_types.html#ft_pixel_mode">FT_Pixel_Mode</a></code> is set to <code>FT_PIXEL_MODE_LCD</code>, the logical width is a just a third of the physical one.</p>
<hr>
<h2 id="ft_pixel_mode">FT_Pixel_Mode<a class="headerlink" href="#ft_pixel_mode" title="Permanent link">¶</a></h2>
<p>An enumeration type used to describe the format of pixels in a given bitmap. Note that additional formats may be added in the future.</p>
<h4>values</h4>
-
<table class="fields">
<tr><td class="val" id="ft_pixel_mode_none">FT_PIXEL_MODE_NONE</td><td class="desc">
<p>Value 0 is reserved.</p>
<p>A 4-bit per pixel bitmap, representing embedded anti-aliased bitmaps in font files according to the OpenType specification. We haven't found a single font using this format, however.</p>
</td></tr>
<tr><td class="val" id="ft_pixel_mode_lcd">FT_PIXEL_MODE_LCD</td><td class="desc">
-<p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on LCD displays; the bitmap is three times wider than the original glyph image. See also <code><a href="ft2-base_interface.html#ft_render_mode">FT_RENDER_MODE_LCD</a></code>.</p>
+<p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on LCD displays; the bitmap is three times wider than the original glyph image. See also <code><a href="ft2-glyph_retrieval.html#ft_render_mode">FT_RENDER_MODE_LCD</a></code>.</p>
</td></tr>
<tr><td class="val" id="ft_pixel_mode_lcd_v">FT_PIXEL_MODE_LCD_V</td><td class="desc">
-<p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on rotated LCD displays; the bitmap is three times taller than the original glyph image. See also <code><a href="ft2-base_interface.html#ft_render_mode">FT_RENDER_MODE_LCD_V</a></code>.</p>
+<p>An 8-bit bitmap, representing RGB or BGR decimated glyph images used for display on rotated LCD displays; the bitmap is three times taller than the original glyph image. See also <code><a href="ft2-glyph_retrieval.html#ft_render_mode">FT_RENDER_MODE_LCD_V</a></code>.</p>
</td></tr>
<tr><td class="val" id="ft_pixel_mode_bgra">FT_PIXEL_MODE_BGRA</td><td class="desc">
-<p>[Since 2.5] An image with four 8-bit channels per pixel, representing a color image (such as emoticons) with alpha channel. For each pixel, the format is BGRA, which means, the blue channel comes first in memory. The color channels are pre-multiplied and in the sRGB colorspace. For example, full red at half-translucent opacity will be represented as ‘00,00,80,80’, not ‘00,00,FF,80’. See also <code><a href="ft2-base_interface.html#ft_load_xxx">FT_LOAD_COLOR</a></code>.</p>
+<p>[Since 2.5] An image with four 8-bit channels per pixel, representing a color image (such as emoticons) with alpha channel. For each pixel, the format is BGRA, which means, the blue channel comes first in memory. The color channels are pre-multiplied and in the sRGB colorspace. For example, full red at half-translucent opacity will be represented as ‘00,00,80,80’, not ‘00,00,FF,80’. See also <code><a href="ft2-glyph_retrieval.html#ft_load_xxx">FT_LOAD_COLOR</a></code>.</p>
</td></tr>
</table>
<a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_composite">FT_GLYPH_FORMAT_COMPOSITE</a>, 'c', 'o', 'm', 'p' ),
<a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_bitmap">FT_GLYPH_FORMAT_BITMAP</a>, 'b', 'i', 't', 's' ),
<a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_outline">FT_GLYPH_FORMAT_OUTLINE</a>, 'o', 'u', 't', 'l' ),
- <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_plotter">FT_GLYPH_FORMAT_PLOTTER</a>, 'p', 'l', 'o', 't' )
+ <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_plotter">FT_GLYPH_FORMAT_PLOTTER</a>, 'p', 'l', 'o', 't' ),
+ <a href="ft2-basic_types.html#ft_image_tag">FT_IMAGE_TAG</a>( <a href="ft2-basic_types.html#ft_glyph_format_svg">FT_GLYPH_FORMAT_SVG</a>, 'S', 'V', 'G', ' ' )
} <b>FT_Glyph_Format</b>;
<p>An enumeration type used to describe the format of a given glyph image. Note that this version of FreeType only supports two image formats, even though future font drivers will be able to register their own format.</p>
<h4>values</h4>
-
<table class="fields">
<tr><td class="val" id="ft_glyph_format_none">FT_GLYPH_FORMAT_NONE</td><td class="desc">
<p>The value 0 is reserved.</p>
</td></tr>
<tr><td class="val" id="ft_glyph_format_composite">FT_GLYPH_FORMAT_COMPOSITE</td><td class="desc">
-<p>The glyph image is a composite of several other images. This format is <em>only</em> used with <code><a href="ft2-base_interface.html#ft_load_xxx">FT_LOAD_NO_RECURSE</a></code>, and is used to report compound glyphs (like accented characters).</p>
+<p>The glyph image is a composite of several other images. This format is <em>only</em> used with <code><a href="ft2-glyph_retrieval.html#ft_load_xxx">FT_LOAD_NO_RECURSE</a></code>, and is used to report compound glyphs (like accented characters).</p>
</td></tr>
<tr><td class="val" id="ft_glyph_format_bitmap">FT_GLYPH_FORMAT_BITMAP</td><td class="desc">
-<p>The glyph image is a bitmap, and can be described as an <code><a href="ft2-basic_types.html#ft_bitmap">FT_Bitmap</a></code>. You generally need to access the <code>bitmap</code> field of the <code><a href="ft2-base_interface.html#ft_glyphslotrec">FT_GlyphSlotRec</a></code> structure to read it.</p>
+<p>The glyph image is a bitmap, and can be described as an <code><a href="ft2-basic_types.html#ft_bitmap">FT_Bitmap</a></code>. You generally need to access the <code>bitmap</code> field of the <code><a href="ft2-glyph_retrieval.html#ft_glyphslotrec">FT_GlyphSlotRec</a></code> structure to read it.</p>
</td></tr>
<tr><td class="val" id="ft_glyph_format_outline">FT_GLYPH_FORMAT_OUTLINE</td><td class="desc">
-<p>The glyph image is a vectorial outline made of line segments and Bezier arcs; it can be described as an <code><a href="ft2-outline_processing.html#ft_outline">FT_Outline</a></code>; you generally want to access the <code>outline</code> field of the <code><a href="ft2-base_interface.html#ft_glyphslotrec">FT_GlyphSlotRec</a></code> structure to read it.</p>
+<p>The glyph image is a vectorial outline made of line segments and Bezier arcs; it can be described as an <code><a href="ft2-outline_processing.html#ft_outline">FT_Outline</a></code>; you generally want to access the <code>outline</code> field of the <code><a href="ft2-glyph_retrieval.html#ft_glyphslotrec">FT_GlyphSlotRec</a></code> structure to read it.</p>
</td></tr>
<tr><td class="val" id="ft_glyph_format_plotter">FT_GLYPH_FORMAT_PLOTTER</td><td class="desc">
<p>The glyph image is a vectorial path with no inside and outside contours. Some Type 1 fonts, like those in the Hershey family, contain glyphs in this format. These are described as <code><a href="ft2-outline_processing.html#ft_outline">FT_Outline</a></code>, but FreeType isn't currently capable of rendering them correctly.</p>
</td></tr>
+<tr><td class="val" id="ft_glyph_format_svg">FT_GLYPH_FORMAT_SVG</td><td class="desc">
+<p>[Since 2.12] The glyph is represented by an SVG document in the ‘SVG ’ table.</p>
+</td></tr>
</table>
<hr>
<h2 id="ft_image_tag">FT_IMAGE_TAG<a class="headerlink" href="#ft_image_tag" title="Permanent link">¶</a></h2>
<p>Defined in FT_IMAGE_H (freetype/ftimage.h).</p>
<div class = "codehilite"><pre><code>#<span class="keyword">ifndef</span> <b>FT_IMAGE_TAG</b>
-#<span class="keyword">define</span> <b>FT_IMAGE_TAG</b>( value, _x1, _x2, _x3, _x4 ) \
- value = ( ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x1 << 24 ) | \
- ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x2 << 16 ) | \
- ( (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x3 << 8 ) | \
- (<span class="keyword">unsigned</span> <span class="keyword">long</span>)_x4 )
+
+#<span class="keyword">define</span> <b>FT_IMAGE_TAG</b>( value, _x1, _x2, _x3, _x4 ) \
+ value = ( ( FT_STATIC_BYTE_CAST( <span class="keyword">unsigned</span> <span class="keyword">long</span>, _x1 ) << 24 ) | \
+ ( FT_STATIC_BYTE_CAST( <span class="keyword">unsigned</span> <span class="keyword">long</span>, _x2 ) << 16 ) | \
+ ( FT_STATIC_BYTE_CAST( <span class="keyword">unsigned</span> <span class="keyword">long</span>, _x3 ) << 8 ) | \
+ FT_STATIC_BYTE_CAST( <span class="keyword">unsigned</span> <span class="keyword">long</span>, _x4 ) )
+
#<span class="keyword">endif</span> /* <b>FT_IMAGE_TAG</b> */
</code></pre></div>
<p>to get a simple enumeration without assigning special numbers.</p>
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