diff options
Diffstat (limited to 'Build/source/libs/freetype2/freetype-src/docs/reference/site/ft2-module_management.html')
-rw-r--r-- | Build/source/libs/freetype2/freetype-src/docs/reference/site/ft2-module_management.html | 2225 |
1 files changed, 2225 insertions, 0 deletions
diff --git a/Build/source/libs/freetype2/freetype-src/docs/reference/site/ft2-module_management.html b/Build/source/libs/freetype2/freetype-src/docs/reference/site/ft2-module_management.html new file mode 100644 index 00000000000..46cd9cf4a40 --- /dev/null +++ b/Build/source/libs/freetype2/freetype-src/docs/reference/site/ft2-module_management.html @@ -0,0 +1,2225 @@ + + + + +<!doctype html> +<html lang="en" class="no-js"> + <head> + + <meta charset="utf-8"> + <meta name="viewport" content="width=device-width,initial-scale=1"> + <meta http-equiv="x-ua-compatible" content="ie=edge"> + + <meta name="description" content="API Reference Documentation for FreeType-2.10.0"> + + + + <meta name="author" content="FreeType Contributors"> + + + <meta name="lang:clipboard.copy" content="Copy to clipboard"> + + <meta name="lang:clipboard.copied" content="Copied to clipboard"> + + <meta name="lang:search.language" content="en"> + + <meta name="lang:search.pipeline.stopwords" content="True"> + + <meta name="lang:search.pipeline.trimmer" content="True"> + + <meta name="lang:search.result.none" content="No matching documents"> + + <meta name="lang:search.result.one" content="1 matching document"> + + <meta name="lang:search.result.other" content="# matching documents"> + + <meta name="lang:search.tokenizer" content="[\s\-]+"> + + <link rel="shortcut icon" href="images/favico.ico"> + <meta name="generator" content="mkdocs-1.0.4, mkdocs-material-4.0.2"> + + + + <title>Module Management - FreeType-2.10.0 API Reference</title> + + + + <link rel="stylesheet" href="assets/stylesheets/application.982221ab.css"> + + <link rel="stylesheet" href="assets/stylesheets/application-palette.224b79ff.css"> + + + + + <meta name="theme-color" content="#4caf50"> + + + + <script src="assets/javascripts/modernizr.1f0bcf2b.js"></script> + + + + <link href="https://fonts.gstatic.com" rel="preconnect" crossorigin> + <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Noto+Serif:300,400,400i,700|Roboto+Mono"> + <style>body,input{font-family:"Noto Serif","Helvetica Neue",Helvetica,Arial,sans-serif}code,kbd,pre{font-family:"Roboto Mono","Courier New",Courier,monospace}</style> + + + <link rel="stylesheet" href="assets/fonts/material-icons.css"> + + + <link rel="stylesheet" href="stylesheets/extra.css"> + + + + + + </head> + + + + <body dir="ltr" data-md-color-primary="green" data-md-color-accent="green"> + + <svg class="md-svg"> + <defs> + + + </defs> + </svg> + <input class="md-toggle" data-md-toggle="drawer" type="checkbox" id="__drawer" autocomplete="off"> + <input class="md-toggle" data-md-toggle="search" type="checkbox" id="__search" autocomplete="off"> + <label class="md-overlay" data-md-component="overlay" for="__drawer"></label> + + <a href="#module-management" tabindex="1" class="md-skip"> + Skip to content + </a> + + + <header class="md-header" data-md-component="header"> + <nav class="md-header-nav md-grid"> + <div class="md-flex"> + <div class="md-flex__cell md-flex__cell--shrink"> + <a href="index.html" title="FreeType-2.10.0 API Reference" class="md-header-nav__button md-logo"> + + <img src="images/favico.ico" width="24" height="24"> + + </a> + </div> + <div class="md-flex__cell md-flex__cell--shrink"> + <label class="md-icon md-icon--menu md-header-nav__button" for="__drawer"></label> + </div> + <div class="md-flex__cell md-flex__cell--stretch"> + <div class="md-flex__ellipsis md-header-nav__title" data-md-component="title"> + + <span class="md-header-nav__topic"> + FreeType-2.10.0 API Reference + </span> + <span class="md-header-nav__topic"> + Module Management + </span> + + </div> + </div> + <div class="md-flex__cell md-flex__cell--shrink"> + + <label class="md-icon md-icon--search md-header-nav__button" for="__search"></label> + +<div class="md-search" data-md-component="search" role="dialog"> + <label class="md-search__overlay" for="__search"></label> + <div class="md-search__inner" role="search"> + <form class="md-search__form" name="search"> + <input type="text" class="md-search__input" name="query" placeholder="Search" autocapitalize="off" autocorrect="off" autocomplete="off" spellcheck="false" data-md-component="query" data-md-state="active"> + <label class="md-icon md-search__icon" for="__search"></label> + <button type="reset" class="md-icon md-search__icon" data-md-component="reset" tabindex="-1"> +  + </button> + </form> + <div class="md-search__output"> + <div class="md-search__scrollwrap" data-md-scrollfix> + <div class="md-search-result" data-md-component="result"> + <div class="md-search-result__meta"> + Type to start searching + </div> + <ol class="md-search-result__list"></ol> + </div> + </div> + </div> + </div> +</div> + + </div> + + </div> + </nav> +</header> + + <div class="md-container"> + + + + + <main class="md-main"> + <div class="md-main__inner md-grid" data-md-component="container"> + + + <div class="md-sidebar md-sidebar--primary" data-md-component="navigation"> + <div class="md-sidebar__scrollwrap"> + <div class="md-sidebar__inner"> + <nav class="md-nav md-nav--primary" data-md-level="0"> + <label class="md-nav__title md-nav__title--site" for="__drawer"> + <a href="index.html" title="FreeType-2.10.0 API Reference" class="md-nav__button md-logo"> + + <img src="images/favico.ico" width="48" height="48"> + + </a> + FreeType-2.10.0 API Reference + </label> + + <ul class="md-nav__list" data-md-scrollfix> + + + + + + + <li class="md-nav__item"> + <a href="index.html" title="TOC" class="md-nav__link"> + TOC + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-index.html" title="Index" class="md-nav__link"> + Index + </a> + </li> + + + + + + + + <li class="md-nav__item md-nav__item--nested"> + + <input class="md-toggle md-nav__toggle" data-md-toggle="nav-3" type="checkbox" id="nav-3"> + + <label class="md-nav__link" for="nav-3"> + General Remarks + </label> + <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> + <label class="md-nav__title" for="nav-3"> + General Remarks + </label> + <ul class="md-nav__list" data-md-scrollfix> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-header_inclusion.html" title="FreeType's header inclusion scheme" class="md-nav__link"> + FreeType's header inclusion scheme + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-user_allocation.html" title="User allocation" class="md-nav__link"> + User allocation + </a> + </li> + + + </ul> + </nav> + </li> + + + + + + + + <li class="md-nav__item md-nav__item--nested"> + + <input class="md-toggle md-nav__toggle" data-md-toggle="nav-4" type="checkbox" id="nav-4"> + + <label class="md-nav__link" for="nav-4"> + Core API + </label> + <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> + <label class="md-nav__title" for="nav-4"> + Core API + </label> + <ul class="md-nav__list" data-md-scrollfix> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-version.html" title="FreeType Version" class="md-nav__link"> + FreeType Version + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-basic_types.html" title="Basic Data Types" class="md-nav__link"> + Basic Data Types + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-base_interface.html" title="Base Interface" class="md-nav__link"> + Base Interface + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-glyph_variants.html" title="Unicode Variation Sequences" class="md-nav__link"> + Unicode Variation Sequences + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-color_management.html" title="Glyph Color Management" class="md-nav__link"> + Glyph Color Management + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-layer_management.html" title="Glyph Layer Management" class="md-nav__link"> + Glyph Layer Management + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-glyph_management.html" title="Glyph Management" class="md-nav__link"> + Glyph Management + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-mac_specific.html" title="Mac Specific Interface" class="md-nav__link"> + Mac Specific Interface + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-sizes_management.html" title="Size Management" class="md-nav__link"> + Size Management + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-header_file_macros.html" title="Header File Macros" class="md-nav__link"> + Header File Macros + </a> + </li> + + + </ul> + </nav> + </li> + + + + + + + + <li class="md-nav__item md-nav__item--nested"> + + <input class="md-toggle md-nav__toggle" data-md-toggle="nav-5" type="checkbox" id="nav-5"> + + <label class="md-nav__link" for="nav-5"> + Format-Specific API + </label> + <nav class="md-nav" data-md-component="collapsible" data-md-level="1"> + <label class="md-nav__title" for="nav-5"> + 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-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" 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-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-pfr_fonts.html" title="PFR Fonts" 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-font_formats.html" title="Font Formats" class="md-nav__link"> + Font Formats + </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> + + + + + + + + <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"> + 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-cff_driver.html" title="The CFF driver" class="md-nav__link"> + The CFF driver + </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-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-parameter_tags.html" title="Parameter Tags" 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> + + + </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"> + 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> + + + </ul> + </nav> + </li> + + + + + + + + + + <li class="md-nav__item md-nav__item--active md-nav__item--nested"> + + <input class="md-toggle md-nav__toggle" data-md-toggle="nav-8" type="checkbox" id="nav-8" checked> + + <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"> + 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> + + + + + + + + + + <li class="md-nav__item md-nav__item--active"> + + <input class="md-toggle md-nav__toggle" data-md-toggle="toc" type="checkbox" id="__toc"> + + + + + <label class="md-nav__link md-nav__link--active" for="__toc"> + Module Management + </label> + + <a href="ft2-module_management.html" title="Module Management" class="md-nav__link md-nav__link--active"> + Module Management + </a> + + +<nav class="md-nav md-nav--secondary"> + + + + + + <label class="md-nav__title" for="__toc">Table of contents</label> + <ul class="md-nav__list" data-md-scrollfix> + + <li class="md-nav__item"> + <a href="#synopsis" title="Synopsis" class="md-nav__link"> + Synopsis + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module" title="FT_Module" class="md-nav__link"> + FT_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_constructor" title="FT_Module_Constructor" class="md-nav__link"> + FT_Module_Constructor + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_destructor" title="FT_Module_Destructor" class="md-nav__link"> + FT_Module_Destructor + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_requester" title="FT_Module_Requester" class="md-nav__link"> + FT_Module_Requester + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_class" title="FT_Module_Class" class="md-nav__link"> + FT_Module_Class + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_add_module" title="FT_Add_Module" class="md-nav__link"> + FT_Add_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_get_module" title="FT_Get_Module" class="md-nav__link"> + FT_Get_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_remove_module" title="FT_Remove_Module" class="md-nav__link"> + FT_Remove_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_add_default_modules" title="FT_Add_Default_Modules" class="md-nav__link"> + FT_Add_Default_Modules + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_property_set" title="FT_Property_Set" class="md-nav__link"> + FT_Property_Set + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_property_get" title="FT_Property_Get" class="md-nav__link"> + FT_Property_Get + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_set_default_properties" title="FT_Set_Default_Properties" class="md-nav__link"> + FT_Set_Default_Properties + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_new_library" title="FT_New_Library" class="md-nav__link"> + FT_New_Library + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_done_library" title="FT_Done_Library" class="md-nav__link"> + FT_Done_Library + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_reference_library" title="FT_Reference_Library" class="md-nav__link"> + FT_Reference_Library + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_renderer" title="FT_Renderer" class="md-nav__link"> + FT_Renderer + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_renderer_class" title="FT_Renderer_Class" class="md-nav__link"> + FT_Renderer_Class + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_get_renderer" title="FT_Get_Renderer" class="md-nav__link"> + FT_Get_Renderer + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_set_renderer" title="FT_Set_Renderer" class="md-nav__link"> + FT_Set_Renderer + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_set_debug_hook" title="FT_Set_Debug_Hook" class="md-nav__link"> + FT_Set_Debug_Hook + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_driver" title="FT_Driver" class="md-nav__link"> + FT_Driver + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_debughook_func" title="FT_DebugHook_Func" class="md-nav__link"> + FT_DebugHook_Func + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_debug_hook_xxx" title="FT_DEBUG_HOOK_XXX" class="md-nav__link"> + FT_DEBUG_HOOK_XXX + </a> + +</li> + + + + + + </ul> + +</nav> + + </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-lzw.html" title="LZW Streams" class="md-nav__link"> + LZW Streams + </a> + </li> + + + + + + + + <li class="md-nav__item"> + <a href="ft2-bzip2.html" title="BZIP2 Streams" class="md-nav__link"> + BZIP2 Streams + </a> + </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"> + 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_code_values.html" title="Error Code Values" class="md-nav__link"> + Error Code Values + </a> + </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"> + Miscellaneous + </label> + <ul class="md-nav__list" data-md-scrollfix> + + + + + + + + <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-incremental.html" title="Incremental Loading" 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-gx_validation.html" title="TrueTypeGX/AAT Validation" class="md-nav__link"> + TrueTypeGX/AAT Validation + </a> + </li> + + + </ul> + </nav> + </li> + + + </ul> +</nav> + </div> + </div> + </div> + + + <div class="md-sidebar md-sidebar--secondary" data-md-component="toc"> + <div class="md-sidebar__scrollwrap"> + <div class="md-sidebar__inner"> + +<nav class="md-nav md-nav--secondary"> + + + + + + <label class="md-nav__title" for="__toc">Table of contents</label> + <ul class="md-nav__list" data-md-scrollfix> + + <li class="md-nav__item"> + <a href="#synopsis" title="Synopsis" class="md-nav__link"> + Synopsis + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module" title="FT_Module" class="md-nav__link"> + FT_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_constructor" title="FT_Module_Constructor" class="md-nav__link"> + FT_Module_Constructor + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_destructor" title="FT_Module_Destructor" class="md-nav__link"> + FT_Module_Destructor + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_requester" title="FT_Module_Requester" class="md-nav__link"> + FT_Module_Requester + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_module_class" title="FT_Module_Class" class="md-nav__link"> + FT_Module_Class + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_add_module" title="FT_Add_Module" class="md-nav__link"> + FT_Add_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_get_module" title="FT_Get_Module" class="md-nav__link"> + FT_Get_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_remove_module" title="FT_Remove_Module" class="md-nav__link"> + FT_Remove_Module + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_add_default_modules" title="FT_Add_Default_Modules" class="md-nav__link"> + FT_Add_Default_Modules + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_property_set" title="FT_Property_Set" class="md-nav__link"> + FT_Property_Set + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_property_get" title="FT_Property_Get" class="md-nav__link"> + FT_Property_Get + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_set_default_properties" title="FT_Set_Default_Properties" class="md-nav__link"> + FT_Set_Default_Properties + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_new_library" title="FT_New_Library" class="md-nav__link"> + FT_New_Library + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_done_library" title="FT_Done_Library" class="md-nav__link"> + FT_Done_Library + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_reference_library" title="FT_Reference_Library" class="md-nav__link"> + FT_Reference_Library + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_renderer" title="FT_Renderer" class="md-nav__link"> + FT_Renderer + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_renderer_class" title="FT_Renderer_Class" class="md-nav__link"> + FT_Renderer_Class + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_get_renderer" title="FT_Get_Renderer" class="md-nav__link"> + FT_Get_Renderer + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_set_renderer" title="FT_Set_Renderer" class="md-nav__link"> + FT_Set_Renderer + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_set_debug_hook" title="FT_Set_Debug_Hook" class="md-nav__link"> + FT_Set_Debug_Hook + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_driver" title="FT_Driver" class="md-nav__link"> + FT_Driver + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_debughook_func" title="FT_DebugHook_Func" class="md-nav__link"> + FT_DebugHook_Func + </a> + +</li> + + <li class="md-nav__item"> + <a href="#ft_debug_hook_xxx" title="FT_DEBUG_HOOK_XXX" class="md-nav__link"> + FT_DEBUG_HOOK_XXX + </a> + +</li> + + + + + + </ul> + +</nav> + </div> + </div> + </div> + + + <div class="md-content"> + <article class="md-content__inner md-typeset"> + + + + <p><a href="https://www.freetype.org">FreeType</a> » <a href="../">Docs</a> » <a href="index.html#support-api">Support API</a> » Module Management</p> +<hr /> +<h1 id="module-management">Module Management<a class="headerlink" href="#module-management" title="Permanent link">¶</a></h1> +<h2 id="synopsis">Synopsis<a class="headerlink" href="#synopsis" title="Permanent link">¶</a></h2> +<p>The definitions below are used to manage modules within FreeType. Modules can be added, upgraded, and removed at runtime. Additionally, some module properties can be controlled also.</p> +<p>Here is a list of possible values of the <code>module_name</code> field in the <code><a href="ft2-module_management.html#ft_module_class">FT_Module_Class</a></code> structure. +<div class="codehilite"><pre><span></span> autofitter + bdf + cff + gxvalid + otvalid + pcf + pfr + psaux + pshinter + psnames + raster1 + sfnt + smooth, smooth-lcd, smooth-lcdv + truetype + type1 + type42 + t1cid + winfonts +</pre></div></p> +<p>Note that the FreeType Cache sub-system is not a FreeType module.</p> +<h2 id="ft_module">FT_Module<a class="headerlink" href="#ft_module" title="Permanent link">¶</a></h2> +<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_ModuleRec_* <b>FT_Module</b>; +</pre> +</div> + +<p>A handle to a given FreeType module object. A module can be a font driver, a renderer, or anything else that provides services to the former.</p> +<hr> + +<h2 id="ft_module_constructor">FT_Module_Constructor<a class="headerlink" href="#ft_module_constructor" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <a href="ft2-basic_types.html#ft_error">FT_Error</a> + (*<b>FT_Module_Constructor</b>)( <a href="ft2-module_management.html#ft_module">FT_Module</a> module ); +</pre> +</div> + +<p>A function used to initialize (not create) a new module object.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="module">module</td><td class="desc"> +<p>The module to initialize.</p> +</td></tr> +</table> + +<hr> + +<h2 id="ft_module_destructor">FT_Module_Destructor<a class="headerlink" href="#ft_module_destructor" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <span class="keyword">void</span> + (*<b>FT_Module_Destructor</b>)( <a href="ft2-module_management.html#ft_module">FT_Module</a> module ); +</pre> +</div> + +<p>A function used to finalize (not destroy) a given module object.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="module">module</td><td class="desc"> +<p>The module to finalize.</p> +</td></tr> +</table> + +<hr> + +<h2 id="ft_module_requester">FT_Module_Requester<a class="headerlink" href="#ft_module_requester" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> FT_Module_Interface + (*<b>FT_Module_Requester</b>)( <a href="ft2-module_management.html#ft_module">FT_Module</a> module, + <span class="keyword">const</span> <span class="keyword">char</span>* name ); +</pre> +</div> + +<p>A function used to query a given module for a specific interface.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="module">module</td><td class="desc"> +<p>The module to be searched.</p> +</td></tr> +<tr><td class="val" id="name">name</td><td class="desc"> +<p>The name of the interface in the module.</p> +</td></tr> +</table> + +<hr> + +<h2 id="ft_module_class">FT_Module_Class<a class="headerlink" href="#ft_module_class" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Module_Class_ + { + <a href="ft2-basic_types.html#ft_ulong">FT_ULong</a> module_flags; + <a href="ft2-basic_types.html#ft_long">FT_Long</a> module_size; + <span class="keyword">const</span> <a href="ft2-basic_types.html#ft_string">FT_String</a>* module_name; + <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> module_version; + <a href="ft2-basic_types.html#ft_fixed">FT_Fixed</a> module_requires; + + <span class="keyword">const</span> <span class="keyword">void</span>* module_interface; + + <a href="ft2-module_management.html#ft_module_constructor">FT_Module_Constructor</a> module_init; + <a href="ft2-module_management.html#ft_module_destructor">FT_Module_Destructor</a> module_done; + <a href="ft2-module_management.html#ft_module_requester">FT_Module_Requester</a> get_interface; + + } <b>FT_Module_Class</b>; +</pre> +</div> + +<p>The module class descriptor. While being a public structure necessary for FreeType's module bookkeeping, most of the fields are essentially internal, not to be used directly by an application.</p> +<h4>fields</h4> + +<table class="fields"> +<tr><td class="val" id="module_flags">module_flags</td><td class="desc"> +<p>Bit flags describing the module.</p> +</td></tr> +<tr><td class="val" id="module_size">module_size</td><td class="desc"> +<p>The size of one module object/instance in bytes.</p> +</td></tr> +<tr><td class="val" id="module_name">module_name</td><td class="desc"> +<p>The name of the module.</p> +</td></tr> +<tr><td class="val" id="module_version">module_version</td><td class="desc"> +<p>The version, as a 16.16 fixed number (major.minor).</p> +</td></tr> +<tr><td class="val" id="module_requires">module_requires</td><td class="desc"> +<p>The version of FreeType this module requires, as a 16.16 fixed number (major.minor). Starts at version 2.0, i.e., 0x20000.</p> +</td></tr> +<tr><td class="val" id="module_interface">module_interface</td><td class="desc"> +<p>A typeless pointer to a structure (which varies between different modules) that holds the module's interface functions. This is essentially what <code>get_interface</code> returns.</p> +</td></tr> +<tr><td class="val" id="module_init">module_init</td><td class="desc"> +<p>The initializing function.</p> +</td></tr> +<tr><td class="val" id="module_done">module_done</td><td class="desc"> +<p>The finalizing function.</p> +</td></tr> +<tr><td class="val" id="get_interface">get_interface</td><td class="desc"> +<p>The interface requesting function.</p> +</td></tr> +</table> + +<hr> + +<h2 id="ft_add_module">FT_Add_Module<a class="headerlink" href="#ft_add_module" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_Add_Module</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <span class="keyword">const</span> <a href="ft2-module_management.html#ft_module_class">FT_Module_Class</a>* clazz ); +</pre> +</div> + +<p>Add a new module to a given library instance.</p> +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the library object.</p> +</td></tr> +</table> + +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="clazz">clazz</td><td class="desc"> +<p>A pointer to class descriptor for the module.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>note</h4> + +<p>An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great.</p> +<hr> + +<h2 id="ft_get_module">FT_Get_Module<a class="headerlink" href="#ft_get_module" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-module_management.html#ft_module">FT_Module</a> ) + <b>FT_Get_Module</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <span class="keyword">const</span> <span class="keyword">char</span>* module_name ); +</pre> +</div> + +<p>Find a module by its name.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the library object.</p> +</td></tr> +<tr><td class="val" id="module_name">module_name</td><td class="desc"> +<p>The module's name (as an ASCII string).</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>A module handle. 0 if none was found.</p> +<h4>note</h4> + +<p>FreeType's internal modules aren't documented very well, and you should look up the source code for details.</p> +<hr> + +<h2 id="ft_remove_module">FT_Remove_Module<a class="headerlink" href="#ft_remove_module" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_Remove_Module</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <a href="ft2-module_management.html#ft_module">FT_Module</a> module ); +</pre> +</div> + +<p>Remove a given module from a library instance.</p> +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to a library object.</p> +</td></tr> +</table> + +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="module">module</td><td class="desc"> +<p>A handle to a module object.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>note</h4> + +<p>The module object is destroyed by the function in case of success.</p> +<hr> + +<h2 id="ft_add_default_modules">FT_Add_Default_Modules<a class="headerlink" href="#ft_add_default_modules" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <span class="keyword">void</span> ) + <b>FT_Add_Default_Modules</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library ); +</pre> +</div> + +<p>Add the set of default drivers to a given library object. This is only useful when you create a library object with <code><a href="ft2-module_management.html#ft_new_library">FT_New_Library</a></code> (usually to plug a custom memory manager).</p> +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to a new library object.</p> +</td></tr> +</table> + +<hr> + +<h2 id="ft_property_set">FT_Property_Set<a class="headerlink" href="#ft_property_set" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_Property_Set</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <span class="keyword">const</span> <a href="ft2-basic_types.html#ft_string">FT_String</a>* module_name, + <span class="keyword">const</span> <a href="ft2-basic_types.html#ft_string">FT_String</a>* property_name, + <span class="keyword">const</span> <span class="keyword">void</span>* value ); +</pre> +</div> + +<p>Set a property for a given module.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the library the module is part of.</p> +</td></tr> +<tr><td class="val" id="module_name">module_name</td><td class="desc"> +<p>The module name.</p> +</td></tr> +<tr><td class="val" id="property_name">property_name</td><td class="desc"> +<p>The property name. Properties are described in section ‘<a href="ft2-properties.html#properties">Driver properties</a>’.</p> +<p>Note that only a few modules have properties.</p> +</td></tr> +<tr><td class="val" id="value">value</td><td class="desc"> +<p>A generic pointer to a variable or structure that gives the new value of the property. The exact definition of <code>value</code> is dependent on the property; see section ‘<a href="ft2-properties.html#properties">Driver properties</a>’.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>note</h4> + +<p>If <code>module_name</code> isn't a valid module name, or <code>property_name</code> doesn't specify a valid property, or if <code>value</code> doesn't represent a valid value for the given property, an error is returned.</p> +<p>The following example sets property ‘bar’ (a simple integer) in module ‘foo’ to value 1. +<div class="codehilite"><pre><span></span> FT_UInt bar; + + + bar = 1; + FT_Property_Set( library, "foo", "bar", &bar ); +</pre></div></p> +<p>Note that the FreeType Cache sub-system doesn't recognize module property changes. To avoid glyph lookup confusion within the cache you should call <code><a href="ft2-cache_subsystem.html#ftc_manager_reset">FTC_Manager_Reset</a></code> to completely flush the cache if a module property gets changed after <code><a href="ft2-cache_subsystem.html#ftc_manager_new">FTC_Manager_New</a></code> has been called.</p> +<p>It is not possible to set properties of the FreeType Cache sub-system itself with FT_Property_Set; use ?FTC_Property_Set? instead.</p> +<h4>since</h4> + +<p>2.4.11</p> +<hr> + +<h2 id="ft_property_get">FT_Property_Get<a class="headerlink" href="#ft_property_get" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_Property_Get</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <span class="keyword">const</span> <a href="ft2-basic_types.html#ft_string">FT_String</a>* module_name, + <span class="keyword">const</span> <a href="ft2-basic_types.html#ft_string">FT_String</a>* property_name, + <span class="keyword">void</span>* value ); +</pre> +</div> + +<p>Get a module's property value.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the library the module is part of.</p> +</td></tr> +<tr><td class="val" id="module_name">module_name</td><td class="desc"> +<p>The module name.</p> +</td></tr> +<tr><td class="val" id="property_name">property_name</td><td class="desc"> +<p>The property name. Properties are described in section ‘<a href="ft2-properties.html#properties">Driver properties</a>’.</p> +</td></tr> +</table> + +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="value">value</td><td class="desc"> +<p>A generic pointer to a variable or structure that gives the value of the property. The exact definition of <code>value</code> is dependent on the property; see section ‘<a href="ft2-properties.html#properties">Driver properties</a>’.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>note</h4> + +<p>If <code>module_name</code> isn't a valid module name, or <code>property_name</code> doesn't specify a valid property, or if <code>value</code> doesn't represent a valid value for the given property, an error is returned.</p> +<p>The following example gets property ‘baz’ (a range) in module ‘foo’. +<div class="codehilite"><pre><span></span> typedef range_ + { + FT_Int32 min; + FT_Int32 max; + + } range; + + range baz; + + + FT_Property_Get( library, "foo", "baz", &baz ); +</pre></div></p> +<p>It is not possible to retrieve properties of the FreeType Cache sub-system with FT_Property_Get; use ?FTC_Property_Get? instead.</p> +<h4>since</h4> + +<p>2.4.11</p> +<hr> + +<h2 id="ft_set_default_properties">FT_Set_Default_Properties<a class="headerlink" href="#ft_set_default_properties" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <span class="keyword">void</span> ) + <b>FT_Set_Default_Properties</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library ); +</pre> +</div> + +<p>If compilation option <code>FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES</code> is set, this function reads the <code>FREETYPE_PROPERTIES</code> environment variable to control driver properties. See section ‘<a href="ft2-properties.html#properties">Driver properties</a>’ for more.</p> +<p>If the compilation option is not set, this function does nothing.</p> +<p><code>FREETYPE_PROPERTIES</code> has the following syntax form (broken here into multiple lines for better readability). +<div class="codehilite"><pre><span></span> <optional whitespace> + <module-name1> ':' + <property-name1> '=' <property-value1> + <whitespace> + <module-name2> ':' + <property-name2> '=' <property-value2> + ... +</pre></div></p> +<p>Example: +<div class="codehilite"><pre><span></span> FREETYPE_PROPERTIES=truetype:interpreter-version=35 \ + cff:no-stem-darkening=1 \ + autofitter:warping=1 +</pre></div></p> +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to a new library object.</p> +</td></tr> +</table> + +<h4>since</h4> + +<p>2.8</p> +<hr> + +<h2 id="ft_new_library">FT_New_Library<a class="headerlink" href="#ft_new_library" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_New_Library</b>( <a href="ft2-system_interface.html#ft_memory">FT_Memory</a> memory, + <a href="ft2-base_interface.html#ft_library">FT_Library</a> *alibrary ); +</pre> +</div> + +<p>This function is used to create a new FreeType library instance from a given memory object. It is thus possible to use libraries with distinct memory allocators within the same program. Note, however, that the used <code><a href="ft2-system_interface.html#ft_memory">FT_Memory</a></code> structure is expected to remain valid for the life of the <code><a href="ft2-base_interface.html#ft_library">FT_Library</a></code> object.</p> +<p>Normally, you would call this function (followed by a call to <code><a href="ft2-module_management.html#ft_add_default_modules">FT_Add_Default_Modules</a></code> or a series of calls to <code><a href="ft2-module_management.html#ft_add_module">FT_Add_Module</a></code>, and a call to <code><a href="ft2-module_management.html#ft_set_default_properties">FT_Set_Default_Properties</a></code>) instead of <code><a href="ft2-base_interface.html#ft_init_freetype">FT_Init_FreeType</a></code> to initialize the FreeType library.</p> +<p>Don't use <code><a href="ft2-base_interface.html#ft_done_freetype">FT_Done_FreeType</a></code> but <code><a href="ft2-module_management.html#ft_done_library">FT_Done_Library</a></code> to destroy a library instance.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="memory">memory</td><td class="desc"> +<p>A handle to the original memory object.</p> +</td></tr> +</table> + +<h4>output</h4> + +<table class="fields"> +<tr><td class="val" id="alibrary">alibrary</td><td class="desc"> +<p>A pointer to handle of a new library object.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>note</h4> + +<p>See the discussion of reference counters in the description of <code><a href="ft2-module_management.html#ft_reference_library">FT_Reference_Library</a></code>.</p> +<hr> + +<h2 id="ft_done_library">FT_Done_Library<a class="headerlink" href="#ft_done_library" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_Done_Library</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library ); +</pre> +</div> + +<p>Discard a given library object. This closes all drivers and discards all resource objects.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the target library.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>note</h4> + +<p>See the discussion of reference counters in the description of <code><a href="ft2-module_management.html#ft_reference_library">FT_Reference_Library</a></code>.</p> +<hr> + +<h2 id="ft_reference_library">FT_Reference_Library<a class="headerlink" href="#ft_reference_library" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_Reference_Library</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library ); +</pre> +</div> + +<p>A counter gets initialized to 1 at the time an <code><a href="ft2-base_interface.html#ft_library">FT_Library</a></code> structure is created. This function increments the counter. <code><a href="ft2-module_management.html#ft_done_library">FT_Done_Library</a></code> then only destroys a library if the counter is 1, otherwise it simply decrements the counter.</p> +<p>This function helps in managing life-cycles of structures that reference <code><a href="ft2-base_interface.html#ft_library">FT_Library</a></code> objects.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to a target library object.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>since</h4> + +<p>2.4.2</p> +<hr> + +<h2 id="ft_renderer">FT_Renderer<a class="headerlink" href="#ft_renderer" title="Permanent link">¶</a></h2> +<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_RendererRec_* <b>FT_Renderer</b>; +</pre> +</div> + +<p>A handle to a given FreeType renderer. A renderer is a module in charge of converting a glyph's outline image to a bitmap. It supports a single glyph image format, and one or more target surface depths.</p> +<hr> + +<h2 id="ft_renderer_class">FT_Renderer_Class<a class="headerlink" href="#ft_renderer_class" title="Permanent link">¶</a></h2> +<p>Defined in FT_RENDER_H (freetype/ftrender.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_Renderer_Class_ + { + <a href="ft2-module_management.html#ft_module_class">FT_Module_Class</a> root; + + <a href="ft2-basic_types.html#ft_glyph_format">FT_Glyph_Format</a> glyph_format; + + FT_Renderer_RenderFunc render_glyph; + FT_Renderer_TransformFunc transform_glyph; + FT_Renderer_GetCBoxFunc get_glyph_cbox; + FT_Renderer_SetModeFunc set_mode; + + <a href="ft2-raster.html#ft_raster_funcs">FT_Raster_Funcs</a>* raster_class; + + } <b>FT_Renderer_Class</b>; +</pre> +</div> + +<p>The renderer module class descriptor.</p> +<h4>fields</h4> + +<table class="fields"> +<tr><td class="val" id="root">root</td><td class="desc"> +<p>The root <code><a href="ft2-module_management.html#ft_module_class">FT_Module_Class</a></code> fields.</p> +</td></tr> +<tr><td class="val" id="glyph_format">glyph_format</td><td class="desc"> +<p>The glyph image format this renderer handles.</p> +</td></tr> +<tr><td class="val" id="render_glyph">render_glyph</td><td class="desc"> +<p>A method used to render the image that is in a given glyph slot into a bitmap.</p> +</td></tr> +<tr><td class="val" id="transform_glyph">transform_glyph</td><td class="desc"> +<p>A method used to transform the image that is in a given glyph slot.</p> +</td></tr> +<tr><td class="val" id="get_glyph_cbox">get_glyph_cbox</td><td class="desc"> +<p>A method used to access the glyph's cbox.</p> +</td></tr> +<tr><td class="val" id="set_mode">set_mode</td><td class="desc"> +<p>A method used to pass additional parameters.</p> +</td></tr> +<tr><td class="val" id="raster_class">raster_class</td><td class="desc"> +<p>For <code><a href="ft2-basic_types.html#ft_glyph_format">FT_GLYPH_FORMAT_OUTLINE</a></code> renderers only. This is a pointer to its raster's class.</p> +</td></tr> +</table> + +<hr> + +<h2 id="ft_get_renderer">FT_Get_Renderer<a class="headerlink" href="#ft_get_renderer" title="Permanent link">¶</a></h2> +<p>Defined in FT_RENDER_H (freetype/ftrender.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-module_management.html#ft_renderer">FT_Renderer</a> ) + <b>FT_Get_Renderer</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <a href="ft2-basic_types.html#ft_glyph_format">FT_Glyph_Format</a> format ); +</pre> +</div> + +<p>Retrieve the current renderer for a given glyph format.</p> +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the library object.</p> +</td></tr> +<tr><td class="val" id="format">format</td><td class="desc"> +<p>The glyph format.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>A renderer handle. 0 if none found.</p> +<h4>note</h4> + +<p>An error will be returned if a module already exists by that name, or if the module requires a version of FreeType that is too great.</p> +<p>To add a new renderer, simply use <code><a href="ft2-module_management.html#ft_add_module">FT_Add_Module</a></code>. To retrieve a renderer by its name, use <code><a href="ft2-module_management.html#ft_get_module">FT_Get_Module</a></code>.</p> +<hr> + +<h2 id="ft_set_renderer">FT_Set_Renderer<a class="headerlink" href="#ft_set_renderer" title="Permanent link">¶</a></h2> +<p>Defined in FT_RENDER_H (freetype/ftrender.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <a href="ft2-basic_types.html#ft_error">FT_Error</a> ) + <b>FT_Set_Renderer</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <a href="ft2-module_management.html#ft_renderer">FT_Renderer</a> renderer, + <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> num_params, + <a href="ft2-base_interface.html#ft_parameter">FT_Parameter</a>* parameters ); +</pre> +</div> + +<p>Set the current renderer to use, and set additional mode.</p> +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the library object.</p> +</td></tr> +</table> + +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="renderer">renderer</td><td class="desc"> +<p>A handle to the renderer object.</p> +</td></tr> +<tr><td class="val" id="num_params">num_params</td><td class="desc"> +<p>The number of additional parameters.</p> +</td></tr> +<tr><td class="val" id="parameters">parameters</td><td class="desc"> +<p>Additional parameters.</p> +</td></tr> +</table> + +<h4>return</h4> + +<p>FreeType error code. 0 means success.</p> +<h4>note</h4> + +<p>In case of success, the renderer will be used to convert glyph images in the renderer's known format into bitmaps.</p> +<p>This doesn't change the current renderer for other formats.</p> +<p>Currently, no FreeType renderer module uses <code>parameters</code>; you should thus always pass <code>NULL</code> as the value.</p> +<hr> + +<h2 id="ft_set_debug_hook">FT_Set_Debug_Hook<a class="headerlink" href="#ft_set_debug_hook" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + FT_EXPORT( <span class="keyword">void</span> ) + <b>FT_Set_Debug_Hook</b>( <a href="ft2-base_interface.html#ft_library">FT_Library</a> library, + <a href="ft2-basic_types.html#ft_uint">FT_UInt</a> hook_index, + <a href="ft2-module_management.html#ft_debughook_func">FT_DebugHook_Func</a> debug_hook ); +</pre> +</div> + +<p>Set a debug hook function for debugging the interpreter of a font format.</p> +<p>While this is a public API function, an application needs access to FreeType's internal header files to do something useful.</p> +<p>Have a look at the source code of the <code>ttdebug</code> FreeType demo program for an example of its usage.</p> +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="library">library</td><td class="desc"> +<p>A handle to the library object.</p> +</td></tr> +</table> + +<h4>input</h4> + +<table class="fields"> +<tr><td class="val" id="hook_index">hook_index</td><td class="desc"> +<p>The index of the debug hook. You should use defined enumeration macros like <code><a href="ft2-module_management.html#ft_debug_hook_xxx">FT_DEBUG_HOOK_TRUETYPE</a></code>.</p> +</td></tr> +<tr><td class="val" id="debug_hook">debug_hook</td><td class="desc"> +<p>The function used to debug the interpreter.</p> +</td></tr> +</table> + +<h4>note</h4> + +<p>Currently, four debug hook slots are available, but only one (for the TrueType interpreter) is defined.</p> +<hr> + +<h2 id="ft_driver">FT_Driver<a class="headerlink" href="#ft_driver" title="Permanent link">¶</a></h2> +<p>Defined in FT_FREETYPE_H (freetype/freetype.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <span class="keyword">struct</span> FT_DriverRec_* <b>FT_Driver</b>; +</pre> +</div> + +<p>A handle to a given FreeType font driver object. A font driver is a module capable of creating faces from font files.</p> +<hr> + +<h2 id="ft_debughook_func">FT_DebugHook_Func<a class="headerlink" href="#ft_debughook_func" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> + <span class="keyword">typedef</span> <span class="keyword">void</span> + (*<b>FT_DebugHook_Func</b>)( <span class="keyword">void</span>* arg ); +</pre> +</div> + +<p>A drop-in replacement (or rather a wrapper) for the bytecode or charstring interpreter's main loop function.</p> +<p>Its job is essentially</p> +<ul> +<li> +<p>to activate debug mode to enforce single-stepping,</p> +</li> +<li> +<p>to call the main loop function to interpret the next opcode, and</p> +</li> +<li> +<p>to show the changed context to the user.</p> +</li> +</ul> +<p>An example for such a main loop function is <code>TT_RunIns</code> (declared in FreeType's internal header file <code>src/truetype/ttinterp.h</code>).</p> +<p>Have a look at the source code of the <code>ttdebug</code> FreeType demo program for an example of a drop-in replacement.</p> +<h4>inout</h4> + +<table class="fields"> +<tr><td class="val" id="arg">arg</td><td class="desc"> +<p>A typeless pointer, to be cast to the main loop function's data structure (which depends on the font module). For TrueType fonts it is bytecode interpreter's execution context, <code>TT_ExecContext</code>, which is declared in FreeType's internal header file <code>tttypes.h</code>.</p> +</td></tr> +</table> + +<hr> + +<h2 id="ft_debug_hook_xxx">FT_DEBUG_HOOK_XXX<a class="headerlink" href="#ft_debug_hook_xxx" title="Permanent link">¶</a></h2> +<p>Defined in FT_MODULE_H (freetype/ftmodapi.h).</p> +<div class = "codehilite"> +<pre> +#<span class="keyword">define</span> <a href="ft2-module_management.html#ft_debug_hook_truetype">FT_DEBUG_HOOK_TRUETYPE</a> 0 +</pre> +</div> + +<p>A list of named debug hook indices.</p> +<h4>values</h4> + +<table class="fields"> +<tr><td class="val" id="ft_debug_hook_truetype">FT_DEBUG_HOOK_TRUETYPE</td><td class="desc"> +<p>This hook index identifies the TrueType bytecode debugger.</p> +</td></tr> +</table> + +<hr> + + + + + + + + + + </article> + </div> + </div> + </main> + + +<footer class="md-footer"> + + <div class="md-footer-nav"> + <nav class="md-footer-nav__inner md-grid"> + + <a href="ft2-system_interface.html" title="System Interface" class="md-flex md-footer-nav__link md-footer-nav__link--prev" rel="prev"> + <div class="md-flex__cell md-flex__cell--shrink"> + <i class="md-icon md-icon--arrow-back md-footer-nav__button"></i> + </div> + <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title"> + <span class="md-flex__ellipsis"> + <span class="md-footer-nav__direction"> + Previous + </span> + System Interface + </span> + </div> + </a> + + + <a href="ft2-gzip.html" title="GZIP Streams" class="md-flex md-footer-nav__link md-footer-nav__link--next" rel="next"> + <div class="md-flex__cell md-flex__cell--stretch md-footer-nav__title"> + <span class="md-flex__ellipsis"> + <span class="md-footer-nav__direction"> + Next + </span> + GZIP Streams + </span> + </div> + <div class="md-flex__cell md-flex__cell--shrink"> + <i class="md-icon md-icon--arrow-forward md-footer-nav__button"></i> + </div> + </a> + + </nav> + </div> + + <div class="md-footer-meta md-typeset"> + <div class="md-footer-meta__inner md-grid"> + <div class="md-footer-copyright"> + + <div class="md-footer-copyright__highlight"> + Copyright 2019 <a href = "https://www.freetype.org/license.html">The FreeType Project</a>. + </div> + + powered by + <a href="https://www.mkdocs.org">MkDocs</a> + and + <a href="https://squidfunk.github.io/mkdocs-material/"> + Material for MkDocs</a> + </div> + + </div> + </div> +</footer> + + </div> + + <script src="assets/javascripts/application.d9aa80ab.js"></script> + + <script>app.initialize({version:"1.0.4",url:{base:"."}})</script> + + <script src="javascripts/extra.js"></script> + + + </body> +</html>
\ No newline at end of file |