WIP: Documentation

5 files changed, 3631 insertions, 405 deletions

diff --git a/.clang-format b/.clang-format
new file mode 100644
index 0000000..a258b13
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,137 @@
+---
+Language:        Cpp
+# BasedOnStyle:  LLVM
+AccessModifierOffset: -2
+AlignAfterOpenBracket: Align
+AlignConsecutiveMacros: false
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Right
+AlignOperands:   true
+AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: true
+AllowAllConstructorInitializersOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: true
+AllowShortBlocksOnASingleLine: Never
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: All
+AllowShortLambdasOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: MultiLine
+BinPackArguments: true
+BinPackParameters: true
+BraceWrapping:
+  AfterCaseLabel:  false
+  AfterClass:      false
+  AfterControlStatement: false
+  AfterEnum:       false
+  AfterFunction:   false
+  AfterNamespace:  false
+  AfterObjCDeclaration: false
+  AfterStruct:     false
+  AfterUnion:      false
+  AfterExternBlock: false
+  BeforeCatch:     false
+  BeforeElse:      false
+  IndentBraces:    false
+  SplitEmptyFunction: true
+  SplitEmptyRecord: true
+  SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Attach
+BreakBeforeInheritanceComma: false
+BreakInheritanceList: BeforeColon
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeColon
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit:     80
+CommentPragmas:  '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DeriveLineEnding: true
+DerivePointerAlignment: false
+DisableFormat:   false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+  - foreach
+  - Q_FOREACH
+  - BOOST_FOREACH
+IncludeBlocks:   Preserve
+IncludeCategories:
+  - Regex:           '^"(llvm|llvm-c|clang|clang-c)/'
+    Priority:        2
+    SortPriority:    0
+  - Regex:           '^(<|"(gtest|gmock|isl|json)/)'
+    Priority:        3
+    SortPriority:    0
+  - Regex:           '.*'
+    Priority:        1
+    SortPriority:    0
+IncludeIsMainRegex: '(Test)?$'
+IncludeIsMainSourceRegex: ''
+IndentCaseLabels: false
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentWidth:     4
+IndentWrappedFunctionNames: false
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+MacroBlockBegin: ''
+MacroBlockEnd:   ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBinPackProtocolList: Auto
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: true
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Right
+ReflowComments:  true
+SortIncludes:    true
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCpp11BracedList: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceInEmptyBlock: false
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles:  false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+SpaceBeforeSquareBrackets: false
+Standard:        Latest
+StatementMacros:
+  - Q_UNUSED
+  - QT_REQUIRE_VERSION
+TabWidth:        8
+UseCRLF:         false
+UseTab:          Never
+...
+
diff --git a/.gitignore b/.gitignore
index 9ba386e..f075b0d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -22,6 +22,7 @@ configure
 configure.scan
 depcomp
 .deps/
+Doxyfile
 INSTALL
 install-sh
 .libs/
@@ -53,6 +54,7 @@ ylwrap
 *.bin
 core
 *.dll
+doc/html
 *.exe
 *-ISO*.bdf
 *-JIS*.bdf
diff --git a/Doxyfile.in b/Doxyfile.in
new file mode 100644
index 0000000..407192c
--- /dev/null
+++ b/Doxyfile.in
@@ -0,0 +1,2553 @@
+# Doxyfile 1.8.18
+
+# This file describes the settings to be used by the documentation system
+# doxygen (www.doxygen.org) for a project.
+#
+# All text after a double hash (##) is considered a comment and is placed in
+# front of the TAG it is preceding.
+#
+# All text after a single hash (#) is considered a comment and will be ignored.
+# The format is:
+# TAG = value [value, ...]
+# For lists, items can also be appended using:
+# TAG += value [value, ...]
+# Values that contain spaces should be placed between quotes (\" \").
+
+#---------------------------------------------------------------------------
+# Project related configuration options
+#---------------------------------------------------------------------------
+
+# This tag specifies the encoding used for all characters in the configuration
+# file that follow. The default is UTF-8 which is also the encoding used for all
+# text before the first occurrence of this tag. Doxygen uses libiconv (or the
+# iconv built into libc) for the transcoding. See
+# https://www.gnu.org/software/libiconv/ for the list of possible encodings.
+# The default value is: UTF-8.
+
+DOXYFILE_ENCODING      = UTF-8
+
+# The PROJECT_NAME tag is a single word (or a sequence of words surrounded by
+# double-quotes, unless you are using Doxywizard) that should identify the
+# project for which the documentation is generated. This name is used in the
+# title of most generated pages and in a few other places.
+# The default value is: My Project.
+
+PROJECT_NAME           = @PACKAGE_NAME@
+
+# The PROJECT_NUMBER tag can be used to enter a project or revision number. This
+# could be handy for archiving the generated documentation or if some version
+# control system is used.
+
+PROJECT_NUMBER         = @PACKAGE_VERSION@
+
+# Using the PROJECT_BRIEF tag one can provide an optional one line description
+# for a project that appears at the top of each page and should give viewer a
+# quick idea about the purpose of the project. Keep the description short.
+
+PROJECT_BRIEF          = "@PACKAGE_BRIEF@"
+
+# With the PROJECT_LOGO tag one can specify a logo or an icon that is included
+# in the documentation. The maximum height of the logo should not exceed 55
+# pixels and the maximum width should not exceed 200 pixels. Doxygen will copy
+# the logo to the output directory.
+
+PROJECT_LOGO           =
+
+# The OUTPUT_DIRECTORY tag is used to specify the (relative or absolute) path
+# into which the generated documentation will be written. If a relative path is
+# entered, it will be relative to the location where doxygen was started. If
+# left blank the current directory will be used.
+
+OUTPUT_DIRECTORY       = ./doc
+
+# If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
+# directories (in 2 levels) under the output directory of each output format and
+# will distribute the generated files over these directories. Enabling this
+# option can be useful when feeding doxygen a huge amount of source files, where
+# putting all generated files in the same directory would otherwise causes
+# performance problems for the file system.
+# The default value is: NO.
+
+CREATE_SUBDIRS         = NO
+
+# If the ALLOW_UNICODE_NAMES tag is set to YES, doxygen will allow non-ASCII
+# characters to appear in the names of generated files. If set to NO, non-ASCII
+# characters will be escaped, for example _xE3_x81_x84 will be used for Unicode
+# U+3044.
+# The default value is: NO.
+
+ALLOW_UNICODE_NAMES    = NO
+
+# The OUTPUT_LANGUAGE tag is used to specify the language in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all constant output in the proper language.
+# Possible values are: Afrikaans, Arabic, Armenian, Brazilian, Catalan, Chinese,
+# Chinese-Traditional, Croatian, Czech, Danish, Dutch, English (United States),
+# Esperanto, Farsi (Persian), Finnish, French, German, Greek, Hungarian,
+# Indonesian, Italian, Japanese, Japanese-en (Japanese with English messages),
+# Korean, Korean-en (Korean with English messages), Latvian, Lithuanian,
+# Macedonian, Norwegian, Persian (Farsi), Polish, Portuguese, Romanian, Russian,
+# Serbian, Serbian-Cyrillic, Slovak, Slovene, Spanish, Swedish, Turkish,
+# Ukrainian and Vietnamese.
+# The default value is: English.
+
+OUTPUT_LANGUAGE        = English
+
+# The OUTPUT_TEXT_DIRECTION tag is used to specify the direction in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all generated output in the proper direction.
+# Possible values are: None, LTR, RTL and Context.
+# The default value is: None.
+
+OUTPUT_TEXT_DIRECTION  = None
+
+# If the BRIEF_MEMBER_DESC tag is set to YES, doxygen will include brief member
+# descriptions after the members that are listed in the file and class
+# documentation (similar to Javadoc). Set to NO to disable this.
+# The default value is: YES.
+
+BRIEF_MEMBER_DESC      = YES
+
+# If the REPEAT_BRIEF tag is set to YES, doxygen will prepend the brief
+# description of a member or function before the detailed description
+#
+# Note: If both HIDE_UNDOC_MEMBERS and BRIEF_MEMBER_DESC are set to NO, the
+# brief descriptions will be completely suppressed.
+# The default value is: YES.
+
+REPEAT_BRIEF           = YES
+
+# This tag implements a quasi-intelligent brief description abbreviator that is
+# used to form the text in various listings. Each string in this list, if found
+# as the leading text of the brief description, will be stripped from the text
+# and the result, after processing the whole list, is used as the annotated
+# text. Otherwise, the brief description is used as-is. If left blank, the
+# following values are used ($name is automatically replaced with the name of
+# the entity):The $name class, The $name widget, The $name file, is, provides,
+# specifies, contains, represents, a, an and the.
+
+ABBREVIATE_BRIEF       = "The $name class" \
+                         "The $name widget" \
+                         "The $name file" \
+                         is \
+                         provides \
+                         specifies \
+                         contains \
+                         represents \
+                         a \
+                         an \
+                         the
+
+# If the ALWAYS_DETAILED_SEC and REPEAT_BRIEF tags are both set to YES then
+# doxygen will generate a detailed section even if there is only a brief
+# description.
+# The default value is: NO.
+
+ALWAYS_DETAILED_SEC    = YES
+
+# If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
+# inherited members of a class in the documentation of that class as if those
+# members were ordinary class members. Constructors, destructors and assignment
+# operators of the base classes will not be shown.
+# The default value is: NO.
+
+INLINE_INHERITED_MEMB  = YES
+
+# If the FULL_PATH_NAMES tag is set to YES, doxygen will prepend the full path
+# before files name in the file list and in the header files. If set to NO the
+# shortest path that makes the file name unique will be used
+# The default value is: YES.
+
+FULL_PATH_NAMES        = NO
+
+# The STRIP_FROM_PATH tag can be used to strip a user-defined part of the path.
+# Stripping is only done if one of the specified strings matches the left-hand
+# part of the path. The tag can be used to show relative paths in the file list.
+# If left blank the directory from which doxygen is run is used as the path to
+# strip.
+#
+# Note that you can specify absolute paths here, but also relative paths, which
+# will be relative from the directory where doxygen is started.
+# This tag requires that the tag FULL_PATH_NAMES is set to YES.
+
+STRIP_FROM_PATH        =
+
+# The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
+# path mentioned in the documentation of a class, which tells the reader which
+# header file to include in order to use a class. If left blank only the name of
+# the header file containing the class definition is used. Otherwise one should
+# specify the list of include paths that are normally passed to the compiler
+# using the -I flag.
+
+STRIP_FROM_INC_PATH    =
+
+# If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
+# less readable) file names. This can be useful is your file systems doesn't
+# support long names like on DOS, Mac, or CD-ROM.
+# The default value is: NO.
+
+SHORT_NAMES            = NO
+
+# If the JAVADOC_AUTOBRIEF tag is set to YES then doxygen will interpret the
+# first line (until the first dot) of a Javadoc-style comment as the brief
+# description. If set to NO, the Javadoc-style will behave just like regular Qt-
+# style comments (thus requiring an explicit @brief command for a brief
+# description.)
+# The default value is: NO.
+
+JAVADOC_AUTOBRIEF      = yes
+
+# If the JAVADOC_BANNER tag is set to YES then doxygen will interpret a line
+# such as
+# /***************
+# as being the beginning of a Javadoc-style comment "banner". If set to NO, the
+# Javadoc-style will behave just like regular comments and it will not be
+# interpreted by doxygen.
+# The default value is: NO.
+
+JAVADOC_BANNER         = NO
+
+# If the QT_AUTOBRIEF tag is set to YES then doxygen will interpret the first
+# line (until the first dot) of a Qt-style comment as the brief description. If
+# set to NO, the Qt-style will behave just like regular Qt-style comments (thus
+# requiring an explicit \brief command for a brief description.)
+# The default value is: NO.
+
+QT_AUTOBRIEF           = NO
+
+# The MULTILINE_CPP_IS_BRIEF tag can be set to YES to make doxygen treat a
+# multi-line C++ special comment block (i.e. a block of //! or /// comments) as
+# a brief description. This used to be the default behavior. The new default is
+# to treat a multi-line C++ comment block as a detailed description. Set this
+# tag to YES if you prefer the old behavior instead.
+#
+# Note that setting this tag to YES also means that rational rose comments are
+# not recognized any more.
+# The default value is: NO.
+
+MULTILINE_CPP_IS_BRIEF = NO
+
+# If the INHERIT_DOCS tag is set to YES then an undocumented member inherits the
+# documentation from any documented member that it re-implements.
+# The default value is: YES.
+
+INHERIT_DOCS           = YES
+
+# If the SEPARATE_MEMBER_PAGES tag is set to YES then doxygen will produce a new
+# page for each member. If set to NO, the documentation of a member will be part
+# of the file/class/namespace that contains it.
+# The default value is: NO.
+
+SEPARATE_MEMBER_PAGES  = NO
+
+# The TAB_SIZE tag can be used to set the number of spaces in a tab. Doxygen
+# uses this value to replace tabs by spaces in code fragments.
+# Minimum value: 1, maximum value: 16, default value: 4.
+
+TAB_SIZE               = 4
+
+# This tag can be used to specify a number of aliases that act as commands in
+# the documentation. An alias has the form:
+# name=value
+# For example adding
+# "sideeffect=@par Side Effects:\n"
+# will allow you to put the command \sideeffect (or @sideeffect) in the
+# documentation, which will result in a user-defined paragraph with heading
+# "Side Effects:". You can put \n's in the value part of an alias to insert
+# newlines (in the resulting output). You can put ^^ in the value part of an
+# alias to insert a newline as if a physical newline was in the original file.
+# When you need a literal { or } or , in the value part of an alias you have to
+# escape them by means of a backslash (\), this can lead to conflicts with the
+# commands \{ and \} for these it is advised to use the version @{ and @} or use
+# a double escape (\\{ and \\})
+
+ALIASES                =
+
+# Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
+# only. Doxygen will then generate output that is more tailored for C. For
+# instance, some of the names that are used will be different. The list of all
+# members will be omitted, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_FOR_C  = YES
+
+# Set the OPTIMIZE_OUTPUT_JAVA tag to YES if your project consists of Java or
+# Python sources only. Doxygen will then generate output that is more tailored
+# for that language. For instance, namespaces will be presented as packages,
+# qualified scopes will look different, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_JAVA   = NO
+
+# Set the OPTIMIZE_FOR_FORTRAN tag to YES if your project consists of Fortran
+# sources. Doxygen will then generate output that is tailored for Fortran.
+# The default value is: NO.
+
+OPTIMIZE_FOR_FORTRAN   = NO
+
+# Set the OPTIMIZE_OUTPUT_VHDL tag to YES if your project consists of VHDL
+# sources. Doxygen will then generate output that is tailored for VHDL.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_VHDL   = NO
+
+# Set the OPTIMIZE_OUTPUT_SLICE tag to YES if your project consists of Slice
+# sources only. Doxygen will then generate output that is more tailored for that
+# language. For instance, namespaces will be presented as modules, types will be
+# separated into more groups, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_SLICE  = NO
+
+# Doxygen selects the parser to use depending on the extension of the files it
+# parses. With this tag you can assign which parser to use for a given
+# extension. Doxygen has a built-in mapping, but you can override or extend it
+# using this tag. The format is ext=language, where ext is a file extension, and
+# language is one of the parsers supported by doxygen: IDL, Java, JavaScript,
+# Csharp (C#), C, C++, D, PHP, md (Markdown), Objective-C, Python, Slice, VHDL,
+# Fortran (fixed format Fortran: FortranFixed, free formatted Fortran:
+# FortranFree, unknown formatted Fortran: Fortran. In the later case the parser
+# tries to guess whether the code is fixed or free formatted code, this is the
+# default for Fortran type files). For instance to make doxygen treat .inc files
+# as Fortran files (default is PHP), and .f files as C (default is Fortran),
+# use: inc=Fortran f=C.
+#
+# Note: For files without extension you can use no_extension as a placeholder.
+#
+# Note that for custom extensions you also need to set FILE_PATTERNS otherwise
+# the files are not read by doxygen.
+
+EXTENSION_MAPPING      =
+
+# If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
+# according to the Markdown format, which allows for more readable
+# documentation. See https://daringfireball.net/projects/markdown/ for details.
+# The output of markdown processing is further processed by doxygen, so you can
+# mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
+# case of backward compatibilities issues.
+# The default value is: YES.
+
+MARKDOWN_SUPPORT       = YES
+
+# When the TOC_INCLUDE_HEADINGS tag is set to a non-zero value, all headings up
+# to that level are automatically included in the table of contents, even if
+# they do not have an id attribute.
+# Note: This feature currently applies only to Markdown headings.
+# Minimum value: 0, maximum value: 99, default value: 5.
+# This tag requires that the tag MARKDOWN_SUPPORT is set to YES.
+
+TOC_INCLUDE_HEADINGS   = 5
+
+# When enabled doxygen tries to link words that correspond to documented
+# classes, or namespaces to their corresponding documentation. Such a link can
+# be prevented in individual cases by putting a % sign in front of the word or
+# globally by setting AUTOLINK_SUPPORT to NO.
+# The default value is: YES.
+
+AUTOLINK_SUPPORT       = YES
+
+# If you use STL classes (i.e. std::string, std::vector, etc.) but do not want
+# to include (a tag file for) the STL sources as input, then you should set this
+# tag to YES in order to let doxygen match functions declarations and
+# definitions whose arguments contain STL classes (e.g. func(std::string);
+# versus func(std::string) {}). This also make the inheritance and collaboration
+# diagrams that involve STL classes more complete and accurate.
+# The default value is: NO.
+
+BUILTIN_STL_SUPPORT    = YES
+
+# If you use Microsoft's C++/CLI language, you should set this option to YES to
+# enable parsing support.
+# The default value is: NO.
+
+CPP_CLI_SUPPORT        = NO
+
+# Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
+# https://www.riverbankcomputing.com/software/sip/intro) sources only. Doxygen
+# will parse them like normal C++ but will assume all classes use public instead
+# of private inheritance when no explicit protection keyword is present.
+# The default value is: NO.
+
+SIP_SUPPORT            = NO
+
+# For Microsoft's IDL there are propget and propput attributes to indicate
+# getter and setter methods for a property. Setting this option to YES will make
+# doxygen to replace the get and set methods by a property in the documentation.
+# This will only work if the methods are indeed getting or setting a simple
+# type. If this is not the case, or you want to show the methods anyway, you
+# should set this option to NO.
+# The default value is: YES.
+
+IDL_PROPERTY_SUPPORT   = YES
+
+# If member grouping is used in the documentation and the DISTRIBUTE_GROUP_DOC
+# tag is set to YES then doxygen will reuse the documentation of the first
+# member in the group (if any) for the other members of the group. By default
+# all members of a group must be documented explicitly.
+# The default value is: NO.
+
+DISTRIBUTE_GROUP_DOC   = YES
+
+# If one adds a struct or class to a group and this option is enabled, then also
+# any nested class or struct is added to the same group. By default this option
+# is disabled and one has to add nested compounds explicitly via \ingroup.
+# The default value is: NO.
+
+GROUP_NESTED_COMPOUNDS = NO
+
+# Set the SUBGROUPING tag to YES to allow class member groups of the same type
+# (for instance a group of public functions) to be put as a subgroup of that
+# type (e.g. under the Public Functions section). Set it to NO to prevent
+# subgrouping. Alternatively, this can be done per class using the
+# \nosubgrouping command.
+# The default value is: YES.
+
+SUBGROUPING            = YES
+
+# When the INLINE_GROUPED_CLASSES tag is set to YES, classes, structs and unions
+# are shown inside the group in which they are included (e.g. using \ingroup)
+# instead of on a separate page (for HTML and Man pages) or section (for LaTeX
+# and RTF).
+#
+# Note that this feature does not work in combination with
+# SEPARATE_MEMBER_PAGES.
+# The default value is: NO.
+
+INLINE_GROUPED_CLASSES = NO
+
+# When the INLINE_SIMPLE_STRUCTS tag is set to YES, structs, classes, and unions
+# with only public data fields or simple typedef fields will be shown inline in
+# the documentation of the scope in which they are defined (i.e. file,
+# namespace, or group documentation), provided this scope is documented. If set
+# to NO, structs, classes, and unions are shown on a separate page (for HTML and
+# Man pages) or section (for LaTeX and RTF).
+# The default value is: NO.
+
+INLINE_SIMPLE_STRUCTS  = NO
+
+# When TYPEDEF_HIDES_STRUCT tag is enabled, a typedef of a struct, union, or
+# enum is documented as struct, union, or enum with the name of the typedef. So
+# typedef struct TypeS {} TypeT, will appear in the documentation as a struct
+# with name TypeT. When disabled the typedef will appear as a member of a file,
+# namespace, or class. And the struct will be named TypeS. This can typically be
+# useful for C code in case the coding convention dictates that all compound
+# types are typedef'ed and only the typedef is referenced, never the tag name.
+# The default value is: NO.
+
+TYPEDEF_HIDES_STRUCT   = YES
+
+# The size of the symbol lookup cache can be set using LOOKUP_CACHE_SIZE. This
+# cache is used to resolve symbols given their name and scope. Since this can be
+# an expensive process and often the same symbol appears multiple times in the
+# code, doxygen keeps a cache of pre-resolved symbols. If the cache is too small
+# doxygen will become slower. If the cache is too large, memory is wasted. The
+# cache size is given by this formula: 2^(16+LOOKUP_CACHE_SIZE). The valid range
+# is 0..9, the default is 0, corresponding to a cache size of 2^16=65536
+# symbols. At the end of a run doxygen will report the cache usage and suggest
+# the optimal cache size from a speed point of view.
+# Minimum value: 0, maximum value: 9, default value: 0.
+
+LOOKUP_CACHE_SIZE      = 0
+
+#---------------------------------------------------------------------------
+# Build related configuration options
+#---------------------------------------------------------------------------
+
+# If the EXTRACT_ALL tag is set to YES, doxygen will assume all entities in
+# documentation are documented, even if no documentation was available. Private
+# class members and static file members will be hidden unless the
+# EXTRACT_PRIVATE respectively EXTRACT_STATIC tags are set to YES.
+# Note: This will also disable the warnings about undocumented members that are
+# normally produced when WARNINGS is set to YES.
+# The default value is: NO.
+
+EXTRACT_ALL            = YES
+
+# If the EXTRACT_PRIVATE tag is set to YES, all private members of a class will
+# be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIVATE        = NO
+
+# If the EXTRACT_PRIV_VIRTUAL tag is set to YES, documented private virtual
+# methods of a class will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PRIV_VIRTUAL   = NO
+
+# If the EXTRACT_PACKAGE tag is set to YES, all members with package or internal
+# scope will be included in the documentation.
+# The default value is: NO.
+
+EXTRACT_PACKAGE        = NO
+
+# If the EXTRACT_STATIC tag is set to YES, all static members of a file will be
+# included in the documentation.
+# The default value is: NO.
+
+EXTRACT_STATIC         = YES
+
+# If the EXTRACT_LOCAL_CLASSES tag is set to YES, classes (and structs) defined
+# locally in source files will be included in the documentation. If set to NO,
+# only classes defined in header files are included. Does not have any effect
+# for Java sources.
+# The default value is: YES.
+
+EXTRACT_LOCAL_CLASSES  = YES
+
+# This flag is only useful for Objective-C code. If set to YES, local methods,
+# which are defined in the implementation section but not in the interface are
+# included in the documentation. If set to NO, only methods in the interface are
+# included.
+# The default value is: NO.
+
+EXTRACT_LOCAL_METHODS  = NO
+
+# If this flag is set to YES, the members of anonymous namespaces will be
+# extracted and appear in the documentation as a namespace called
+# 'anonymous_namespace{file}', where file will be replaced with the base name of
+# the file that contains the anonymous namespace. By default anonymous namespace
+# are hidden.
+# The default value is: NO.
+
+EXTRACT_ANON_NSPACES   = NO
+
+# If the HIDE_UNDOC_MEMBERS tag is set to YES, doxygen will hide all
+# undocumented members inside documented classes or files. If set to NO these
+# members will be included in the various overviews, but no documentation
+# section is generated. This option has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_MEMBERS     = NO
+
+# If the HIDE_UNDOC_CLASSES tag is set to YES, doxygen will hide all
+# undocumented classes that are normally visible in the class hierarchy. If set
+# to NO, these classes will be included in the various overviews. This option
+# has no effect if EXTRACT_ALL is enabled.
+# The default value is: NO.
+
+HIDE_UNDOC_CLASSES     = NO
+
+# If the HIDE_FRIEND_COMPOUNDS tag is set to YES, doxygen will hide all friend
+# declarations. If set to NO, these declarations will be included in the
+# documentation.
+# The default value is: NO.
+
+HIDE_FRIEND_COMPOUNDS  = NO
+
+# If the HIDE_IN_BODY_DOCS tag is set to YES, doxygen will hide any
+# documentation blocks found inside the body of a function. If set to NO, these
+# blocks will be appended to the function's detailed documentation block.
+# The default value is: NO.
+
+HIDE_IN_BODY_DOCS      = NO
+
+# The INTERNAL_DOCS tag determines if documentation that is typed after a
+# \internal command is included. If the tag is set to NO then the documentation
+# will be excluded. Set it to YES to include the internal documentation.
+# The default value is: NO.
+
+INTERNAL_DOCS          = NO
+
+# If the CASE_SENSE_NAMES tag is set to NO then doxygen will only generate file
+# names in lower-case letters. If set to YES, upper-case letters are also
+# allowed. This is useful if you have classes or files whose names only differ
+# in case and if your file system supports case sensitive file names. Windows
+# (including Cygwin) ands Mac users are advised to set this option to NO.
+# The default value is: system dependent.
+
+CASE_SENSE_NAMES       = YES
+
+# If the HIDE_SCOPE_NAMES tag is set to NO then doxygen will show members with
+# their full class and namespace scopes in the documentation. If set to YES, the
+# scope will be hidden.
+# The default value is: NO.
+
+HIDE_SCOPE_NAMES       = NO
+
+# If the HIDE_COMPOUND_REFERENCE tag is set to NO (default) then doxygen will
+# append additional text to a page's title, such as Class Reference. If set to
+# YES the compound reference will be hidden.
+# The default value is: NO.
+
+HIDE_COMPOUND_REFERENCE= NO
+
+# If the SHOW_INCLUDE_FILES tag is set to YES then doxygen will put a list of
+# the files that are included by a file in the documentation of that file.
+# The default value is: YES.
+
+SHOW_INCLUDE_FILES     = YES
+
+# If the SHOW_GROUPED_MEMB_INC tag is set to YES then Doxygen will add for each
+# grouped member an include statement to the documentation, telling the reader
+# which file to include in order to use the member.
+# The default value is: NO.
+
+SHOW_GROUPED_MEMB_INC  = NO
+
+# If the FORCE_LOCAL_INCLUDES tag is set to YES then doxygen will list include
+# files with double quotes in the documentation rather than with sharp brackets.
+# The default value is: NO.
+
+FORCE_LOCAL_INCLUDES   = NO
+
+# If the INLINE_INFO tag is set to YES then a tag [inline] is inserted in the
+# documentation for inline members.
+# The default value is: YES.
+
+INLINE_INFO            = YES
+
+# If the SORT_MEMBER_DOCS tag is set to YES then doxygen will sort the
+# (detailed) documentation of file and class members alphabetically by member
+# name. If set to NO, the members will appear in declaration order.
+# The default value is: YES.
+
+SORT_MEMBER_DOCS       = YES
+
+# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the brief
+# descriptions of file, namespace and class members alphabetically by member
+# name. If set to NO, the members will appear in declaration order. Note that
+# this will also influence the order of the classes in the class list.
+# The default value is: NO.
+
+SORT_BRIEF_DOCS        = NO
+
+# If the SORT_MEMBERS_CTORS_1ST tag is set to YES then doxygen will sort the
+# (brief and detailed) documentation of class members so that constructors and
+# destructors are listed first. If set to NO the constructors will appear in the
+# respective orders defined by SORT_BRIEF_DOCS and SORT_MEMBER_DOCS.
+# Note: If SORT_BRIEF_DOCS is set to NO this option is ignored for sorting brief
+# member documentation.
+# Note: If SORT_MEMBER_DOCS is set to NO this option is ignored for sorting
+# detailed member documentation.
+# The default value is: NO.
+
+SORT_MEMBERS_CTORS_1ST = NO
+
+# If the SORT_GROUP_NAMES tag is set to YES then doxygen will sort the hierarchy
+# of group names into alphabetical order. If set to NO the group names will
+# appear in their defined order.
+# The default value is: NO.
+
+SORT_GROUP_NAMES       = NO
+
+# If the SORT_BY_SCOPE_NAME tag is set to YES, the class list will be sorted by
+# fully-qualified names, including namespaces. If set to NO, the class list will
+# be sorted only by class name, not including the namespace part.
+# Note: This option is not very useful if HIDE_SCOPE_NAMES is set to YES.
+# Note: This option applies only to the class list, not to the alphabetical
+# list.
+# The default value is: NO.
+
+SORT_BY_SCOPE_NAME     = NO
+
+# If the STRICT_PROTO_MATCHING option is enabled and doxygen fails to do proper
+# type resolution of all parameters of a function it will reject a match between
+# the prototype and the implementation of a member function even if there is
+# only one candidate or it is obvious which candidate to choose by doing a
+# simple string match. By disabling STRICT_PROTO_MATCHING doxygen will still
+# accept a match between prototype and implementation in such cases.
+# The default value is: NO.
+
+STRICT_PROTO_MATCHING  = NO
+
+# The GENERATE_TODOLIST tag can be used to enable (YES) or disable (NO) the todo
+# list. This list is created by putting \todo commands in the documentation.
+# The default value is: YES.
+
+GENERATE_TODOLIST      = YES
+
+# The GENERATE_TESTLIST tag can be used to enable (YES) or disable (NO) the test
+# list. This list is created by putting \test commands in the documentation.
+# The default value is: YES.
+
+GENERATE_TESTLIST      = YES
+
+# The GENERATE_BUGLIST tag can be used to enable (YES) or disable (NO) the bug
+# list. This list is created by putting \bug commands in the documentation.
+# The default value is: YES.
+
+GENERATE_BUGLIST       = YES
+
+# The GENERATE_DEPRECATEDLIST tag can be used to enable (YES) or disable (NO)
+# the deprecated list. This list is created by putting \deprecated commands in
+# the documentation.
+# The default value is: YES.
+
+GENERATE_DEPRECATEDLIST= YES
+
+# The ENABLED_SECTIONS tag can be used to enable conditional documentation
+# sections, marked by \if <section_label> ... \endif and \cond <section_label>
+# ... \endcond blocks.
+
+ENABLED_SECTIONS       =
+
+# The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
+# initial value of a variable or macro / define can have for it to appear in the
+# documentation. If the initializer consists of more lines than specified here
+# it will be hidden. Use a value of 0 to hide initializers completely. The
+# appearance of the value of individual variables and macros / defines can be
+# controlled using \showinitializer or \hideinitializer command in the
+# documentation regardless of this setting.
+# Minimum value: 0, maximum value: 10000, default value: 30.
+
+MAX_INITIALIZER_LINES  = 30
+
+# Set the SHOW_USED_FILES tag to NO to disable the list of files generated at
+# the bottom of the documentation of classes and structs. If set to YES, the
+# list will mention the files that were used to generate the documentation.
+# The default value is: YES.
+
+SHOW_USED_FILES        = YES
+
+# Set the SHOW_FILES tag to NO to disable the generation of the Files page. This
+# will remove the Files entry from the Quick Index and from the Folder Tree View
+# (if specified).
+# The default value is: YES.
+
+SHOW_FILES             = YES
+
+# Set the SHOW_NAMESPACES tag to NO to disable the generation of the Namespaces
+# page. This will remove the Namespaces entry from the Quick Index and from the
+# Folder Tree View (if specified).
+# The default value is: YES.
+
+SHOW_NAMESPACES        = YES
+
+# The FILE_VERSION_FILTER tag can be used to specify a program or script that
+# doxygen should invoke to get the current version for each file (typically from
+# the version control system). Doxygen will invoke the program by executing (via
+# popen()) the command command input-file, where command is the value of the
+# FILE_VERSION_FILTER tag, and input-file is the name of an input file provided
+# by doxygen. Whatever the program writes to standard output is used as the file
+# version. For an example see the documentation.
+
+FILE_VERSION_FILTER    =
+
+# The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
+# by doxygen. The layout file controls the global structure of the generated
+# output files in an output format independent way. To create the layout file
+# that represents doxygen's defaults, run doxygen with the -l option. You can
+# optionally specify a file name after the option, if omitted DoxygenLayout.xml
+# will be used as the name of the layout file.
+#
+# Note that if you run doxygen from a directory containing a file called
+# DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
+# tag is left empty.
+
+LAYOUT_FILE            =
+
+# The CITE_BIB_FILES tag can be used to specify one or more bib files containing
+# the reference definitions. This must be a list of .bib files. The .bib
+# extension is automatically appended if omitted. This requires the bibtex tool
+# to be installed. See also https://en.wikipedia.org/wiki/BibTeX for more info.
+# For LaTeX the style of the bibliography can be controlled using
+# LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
+# search path. See also \cite for info how to create references.
+
+CITE_BIB_FILES         =
+
+#---------------------------------------------------------------------------
+# Configuration options related to warning and progress messages
+#---------------------------------------------------------------------------
+
+# The QUIET tag can be used to turn on/off the messages that are generated to
+# standard output by doxygen. If QUIET is set to YES this implies that the
+# messages are off.
+# The default value is: NO.
+
+QUIET                  = NO
+
+# The WARNINGS tag can be used to turn on/off the warning messages that are
+# generated to standard error (stderr) by doxygen. If WARNINGS is set to YES
+# this implies that the warnings are on.
+#
+# Tip: Turn warnings on while writing the documentation.
+# The default value is: YES.
+
+WARNINGS               = YES
+
+# If the WARN_IF_UNDOCUMENTED tag is set to YES then doxygen will generate
+# warnings for undocumented members. If EXTRACT_ALL is set to YES then this flag
+# will automatically be disabled.
+# The default value is: YES.
+
+WARN_IF_UNDOCUMENTED   = YES
+
+# If the WARN_IF_DOC_ERROR tag is set to YES, doxygen will generate warnings for
+# potential errors in the documentation, such as not documenting some parameters
+# in a documented function, or documenting parameters that don't exist or using
+# markup commands wrongly.
+# The default value is: YES.
+
+WARN_IF_DOC_ERROR      = YES
+
+# This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
+# are documented, but have no documentation for their parameters or return
+# value. If set to NO, doxygen will only warn about wrong or incomplete
+# parameter documentation, but not about the absence of documentation. If
+# EXTRACT_ALL is set to YES then this flag will automatically be disabled.
+# The default value is: NO.
+
+WARN_NO_PARAMDOC       = NO
+
+# If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when
+# a warning is encountered.
+# The default value is: NO.
+
+WARN_AS_ERROR          = NO
+
+# The WARN_FORMAT tag determines the format of the warning messages that doxygen
+# can produce. The string should contain the $file, $line, and $text tags, which
+# will be replaced by the file and line number from which the warning originated
+# and the warning text. Optionally the format may contain $version, which will
+# be replaced by the version of the file (if it could be obtained via
+# FILE_VERSION_FILTER)
+# The default value is: $file:$line: $text.
+
+WARN_FORMAT            = "$file:$line: $text"
+
+# The WARN_LOGFILE tag can be used to specify a file to which warning and error
+# messages should be written. If left blank the output is written to standard
+# error (stderr).
+
+WARN_LOGFILE           =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the input files
+#---------------------------------------------------------------------------
+
+# The INPUT tag is used to specify the files and/or directories that contain
+# documented source files. You may enter file names like myfile.cpp or
+# directories like /usr/src/myproject. Separate the files or directories with
+# spaces. See also FILE_PATTERNS and EXTENSION_MAPPING
+# Note: If this tag is empty the current directory is searched.
+
+INPUT                  = ./include/X11/extensions
+
+# This tag can be used to specify the character encoding of the source files
+# that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
+# libiconv (or the iconv built into libc) for the transcoding. See the libiconv
+# documentation (see: https://www.gnu.org/software/libiconv/) for the list of
+# possible encodings.
+# The default value is: UTF-8.
+
+INPUT_ENCODING         = UTF-8
+
+# If the value of the INPUT tag contains directories, you can use the
+# FILE_PATTERNS tag to specify one or more wildcard patterns (like *.cpp and
+# *.h) to filter out the source-files in the directories.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# read by doxygen.
+#
+# If left blank the following patterns are tested:*.c, *.cc, *.cxx, *.cpp,
+# *.c++, *.java, *.ii, *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h,
+# *.hh, *.hxx, *.hpp, *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc,
+# *.m, *.markdown, *.md, *.mm, *.dox (to be provided as doxygen C comment),
+# *.doc (to be provided as doxygen C comment), *.txt (to be provided as doxygen
+# C comment), *.py, *.pyw, *.f90, *.f95, *.f03, *.f08, *.f18, *.f, *.for, *.vhd,
+# *.vhdl, *.ucf, *.qsf and *.ice.
+
+FILE_PATTERNS          = *.c \
+                         *.cc \
+                         *.cxx \
+                         *.cpp \
+                         *.c++ \
+                         *.java \
+                         *.ii \
+                         *.ixx \
+                         *.ipp \
+                         *.i++ \
+                         *.inl \
+                         *.idl \
+                         *.ddl \
+                         *.odl \
+                         *.h \
+                         *.hh \
+                         *.hxx \
+                         *.hpp \
+                         *.h++ \
+                         *.cs \
+                         *.d \
+                         *.php \
+                         *.php4 \
+                         *.php5 \
+                         *.phtml \
+                         *.inc \
+                         *.m \
+                         *.markdown \
+                         *.md \
+                         *.mm \
+                         *.dox \
+                         *.doc \
+                         *.txt \
+                         *.py \
+                         *.pyw \
+                         *.f90 \
+                         *.f95 \
+                         *.f03 \
+                         *.f08 \
+                         *.f18 \
+                         *.f \
+                         *.for \
+                         *.vhd \
+                         *.vhdl \
+                         *.ucf \
+                         *.qsf \
+                         *.ice
+
+# The RECURSIVE tag can be used to specify whether or not subdirectories should
+# be searched for input files as well.
+# The default value is: NO.
+
+RECURSIVE              = NO
+
+# The EXCLUDE tag can be used to specify files and/or directories that should be
+# excluded from the INPUT source files. This way you can easily exclude a
+# subdirectory from a directory tree whose root is specified with the INPUT tag.
+#
+# Note that relative paths are relative to the directory from which doxygen is
+# run.
+
+EXCLUDE                =
+
+# The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
+# directories that are symbolic links (a Unix file system feature) are excluded
+# from the input.
+# The default value is: NO.
+
+EXCLUDE_SYMLINKS       = NO
+
+# If the value of the INPUT tag contains directories, you can use the
+# EXCLUDE_PATTERNS tag to specify one or more wildcard patterns to exclude
+# certain files from those directories.
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories for example use the pattern */test/*
+
+EXCLUDE_PATTERNS       =
+
+# The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
+# (namespaces, classes, functions, etc.) that should be excluded from the
+# output. The symbol name can be a fully qualified name, a word, or if the
+# wildcard * is used, a substring. Examples: ANamespace, AClass,
+# AClass::ANamespace, ANamespace::*Test
+#
+# Note that the wildcards are matched against the file with absolute path, so to
+# exclude all test directories use the pattern */test/*
+
+EXCLUDE_SYMBOLS        =
+
+# The EXAMPLE_PATH tag can be used to specify one or more files or directories
+# that contain example code fragments that are included (see the \include
+# command).
+
+EXAMPLE_PATH           =
+
+# If the value of the EXAMPLE_PATH tag contains directories, you can use the
+# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp and
+# *.h) to filter out the source-files in the directories. If left blank all
+# files are included.
+
+EXAMPLE_PATTERNS       = *
+
+# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
+# searched for input files to be used with the \include or \dontinclude commands
+# irrespective of the value of the RECURSIVE tag.
+# The default value is: NO.
+
+EXAMPLE_RECURSIVE      = NO
+
+# The IMAGE_PATH tag can be used to specify one or more files or directories
+# that contain images that are to be included in the documentation (see the
+# \image command).
+
+IMAGE_PATH             =
+
+# The INPUT_FILTER tag can be used to specify a program that doxygen should
+# invoke to filter for each input file. Doxygen will invoke the filter program
+# by executing (via popen()) the command:
+#
+# <filter> <input-file>
+#
+# where <filter> is the value of the INPUT_FILTER tag, and <input-file> is the
+# name of an input file. Doxygen will then use the output that the filter
+# program writes to standard output. If FILTER_PATTERNS is specified, this tag
+# will be ignored.
+#
+# Note that the filter must not add or remove lines; it is applied before the
+# code is scanned, but not when the output code is generated. If lines are added
+# or removed, the anchors will not be placed correctly.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# properly processed by doxygen.
+
+INPUT_FILTER           =
+
+# The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
+# basis. Doxygen will compare the file name with each pattern and apply the
+# filter if there is a match. The filters are a list of the form: pattern=filter
+# (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
+# filters are used. If the FILTER_PATTERNS tag is empty or if none of the
+# patterns match the file name, INPUT_FILTER is applied.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# properly processed by doxygen.
+
+FILTER_PATTERNS        =
+
+# If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
+# INPUT_FILTER) will also be used to filter the input files that are used for
+# producing the source files to browse (i.e. when SOURCE_BROWSER is set to YES).
+# The default value is: NO.
+
+FILTER_SOURCE_FILES    = NO
+
+# The FILTER_SOURCE_PATTERNS tag can be used to specify source filters per file
+# pattern. A pattern will override the setting for FILTER_PATTERN (if any) and
+# it is also possible to disable source filtering for a specific pattern using
+# *.ext= (so without naming a filter).
+# This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
+
+FILTER_SOURCE_PATTERNS =
+
+# If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
+# is part of the input, its contents will be placed on the main page
+# (index.html). This can be useful if you have a project on for instance GitHub
+# and want to reuse the introduction page also for the doxygen output.
+
+USE_MDFILE_AS_MAINPAGE =
+
+#---------------------------------------------------------------------------
+# Configuration options related to source browsing
+#---------------------------------------------------------------------------
+
+# If the SOURCE_BROWSER tag is set to YES then a list of source files will be
+# generated. Documented entities will be cross-referenced with these sources.
+#
+# Note: To get rid of all source code in the generated output, make sure that
+# also VERBATIM_HEADERS is set to NO.
+# The default value is: NO.
+
+SOURCE_BROWSER         = NO
+
+# Setting the INLINE_SOURCES tag to YES will include the body of functions,
+# classes and enums directly into the documentation.
+# The default value is: NO.
+
+INLINE_SOURCES         = NO
+
+# Setting the STRIP_CODE_COMMENTS tag to YES will instruct doxygen to hide any
+# special comment blocks from generated source code fragments. Normal C, C++ and
+# Fortran comments will always remain visible.
+# The default value is: YES.
+
+STRIP_CODE_COMMENTS    = YES
+
+# If the REFERENCED_BY_RELATION tag is set to YES then for each documented
+# entity all documented functions referencing it will be listed.
+# The default value is: NO.
+
+REFERENCED_BY_RELATION = NO
+
+# If the REFERENCES_RELATION tag is set to YES then for each documented function
+# all documented entities called/used by that function will be listed.
+# The default value is: NO.
+
+REFERENCES_RELATION    = NO
+
+# If the REFERENCES_LINK_SOURCE tag is set to YES and SOURCE_BROWSER tag is set
+# to YES then the hyperlinks from functions in REFERENCES_RELATION and
+# REFERENCED_BY_RELATION lists will link to the source code. Otherwise they will
+# link to the documentation.
+# The default value is: YES.
+
+REFERENCES_LINK_SOURCE = YES
+
+# If SOURCE_TOOLTIPS is enabled (the default) then hovering a hyperlink in the
+# source code will show a tooltip with additional information such as prototype,
+# brief description and links to the definition and documentation. Since this
+# will make the HTML file larger and loading of large files a bit slower, you
+# can opt to disable this feature.
+# The default value is: YES.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+SOURCE_TOOLTIPS        = YES
+
+# If the USE_HTAGS tag is set to YES then the references to source code will
+# point to the HTML generated by the htags(1) tool instead of doxygen built-in
+# source browser. The htags tool is part of GNU's global source tagging system
+# (see https://www.gnu.org/software/global/global.html). You will need version
+# 4.8.6 or higher.
+#
+# To use it do the following:
+# - Install the latest version of global
+# - Enable SOURCE_BROWSER and USE_HTAGS in the configuration file
+# - Make sure the INPUT points to the root of the source tree
+# - Run doxygen as normal
+#
+# Doxygen will invoke htags (and that will in turn invoke gtags), so these
+# tools must be available from the command line (i.e. in the search path).
+#
+# The result: instead of the source browser generated by doxygen, the links to
+# source code will now point to the output of htags.
+# The default value is: NO.
+# This tag requires that the tag SOURCE_BROWSER is set to YES.
+
+USE_HTAGS              = NO
+
+# If the VERBATIM_HEADERS tag is set the YES then doxygen will generate a
+# verbatim copy of the header file for each class for which an include is
+# specified. Set to NO to disable this.
+# See also: Section \class.
+# The default value is: YES.
+
+VERBATIM_HEADERS       = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the alphabetical class index
+#---------------------------------------------------------------------------
+
+# If the ALPHABETICAL_INDEX tag is set to YES, an alphabetical index of all
+# compounds will be generated. Enable this if the project contains a lot of
+# classes, structs, unions or interfaces.
+# The default value is: YES.
+
+ALPHABETICAL_INDEX     = YES
+
+# The COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns in
+# which the alphabetical index list will be split.
+# Minimum value: 1, maximum value: 20, default value: 5.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+COLS_IN_ALPHA_INDEX    = 5
+
+# In case all classes in a project start with a common prefix, all classes will
+# be put under the same header in the alphabetical index. The IGNORE_PREFIX tag
+# can be used to specify a prefix (or a list of prefixes) that should be ignored
+# while generating the index headers.
+# This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
+
+IGNORE_PREFIX          =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the HTML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_HTML tag is set to YES, doxygen will generate HTML output
+# The default value is: YES.
+
+GENERATE_HTML          = YES
+
+# The HTML_OUTPUT tag is used to specify where the HTML docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_OUTPUT            = html
+
+# The HTML_FILE_EXTENSION tag can be used to specify the file extension for each
+# generated HTML page (for example: .htm, .php, .asp).
+# The default value is: .html.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FILE_EXTENSION    = .html
+
+# The HTML_HEADER tag can be used to specify a user-defined HTML header file for
+# each generated HTML page. If the tag is left blank doxygen will generate a
+# standard header.
+#
+# To get valid HTML the header file that includes any scripts and style sheets
+# that doxygen needs, which is dependent on the configuration options used (e.g.
+# the setting GENERATE_TREEVIEW). It is highly recommended to start with a
+# default header using
+# doxygen -w html new_header.html new_footer.html new_stylesheet.css
+# YourConfigFile
+# and then modify the file new_header.html. See also section "Doxygen usage"
+# for information on how to generate the default header that doxygen normally
+# uses.
+# Note: The header is subject to change so you typically have to regenerate the
+# default header when upgrading to a newer version of doxygen. For a description
+# of the possible markers and block names see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_HEADER            =
+
+# The HTML_FOOTER tag can be used to specify a user-defined HTML footer for each
+# generated HTML page. If the tag is left blank doxygen will generate a standard
+# footer. See HTML_HEADER for more information on how to generate a default
+# footer and what special commands can be used inside the footer. See also
+# section "Doxygen usage" for information on how to generate the default footer
+# that doxygen normally uses.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FOOTER            =
+
+# The HTML_STYLESHEET tag can be used to specify a user-defined cascading style
+# sheet that is used by each HTML page. It can be used to fine-tune the look of
+# the HTML output. If left blank doxygen will generate a default style sheet.
+# See also section "Doxygen usage" for information on how to generate the style
+# sheet that doxygen normally uses.
+# Note: It is recommended to use HTML_EXTRA_STYLESHEET instead of this tag, as
+# it is more robust and this tag (HTML_STYLESHEET) will in the future become
+# obsolete.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_STYLESHEET        =
+
+# The HTML_EXTRA_STYLESHEET tag can be used to specify additional user-defined
+# cascading style sheets that are included after the standard style sheets
+# created by doxygen. Using this option one can overrule certain style aspects.
+# This is preferred over using HTML_STYLESHEET since it does not replace the
+# standard style sheet and is therefore more robust against future updates.
+# Doxygen will copy the style sheet files to the output directory.
+# Note: The order of the extra style sheet files is of importance (e.g. the last
+# style sheet in the list overrules the setting of the previous ones in the
+# list). For an example see the documentation.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_STYLESHEET  =
+
+# The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the HTML output directory. Note
+# that these files will be copied to the base HTML output directory. Use the
+# $relpath^ marker in the HTML_HEADER and/or HTML_FOOTER files to load these
+# files. In the HTML_STYLESHEET file, use the file name only. Also note that the
+# files will be copied as-is; there are no commands or markers available.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_EXTRA_FILES       =
+
+# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
+# will adjust the colors in the style sheet and background images according to
+# this color. Hue is specified as an angle on a colorwheel, see
+# https://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
+# purple, and 360 is red again.
+# Minimum value: 0, maximum value: 359, default value: 220.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_HUE    = 220
+
+# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of the colors
+# in the HTML output. For a value of 0 the output will use grayscales only. A
+# value of 255 will produce the most vivid colors.
+# Minimum value: 0, maximum value: 255, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_SAT    = 100
+
+# The HTML_COLORSTYLE_GAMMA tag controls the gamma correction applied to the
+# luminance component of the colors in the HTML output. Values below 100
+# gradually make the output lighter, whereas values above 100 make the output
+# darker. The value divided by 100 is the actual gamma applied, so 80 represents
+# a gamma of 0.8, The value 220 represents a gamma of 2.2, and 100 does not
+# change the gamma.
+# Minimum value: 40, maximum value: 240, default value: 80.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_COLORSTYLE_GAMMA  = 80
+
+# If the HTML_TIMESTAMP tag is set to YES then the footer of each generated HTML
+# page will contain the date and time when the page was generated. Setting this
+# to YES can help to show when doxygen was last run and thus if the
+# documentation is up to date.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_TIMESTAMP         = NO
+
+# If the HTML_DYNAMIC_MENUS tag is set to YES then the generated HTML
+# documentation will contain a main index with vertical navigation menus that
+# are dynamically created via JavaScript. If disabled, the navigation index will
+# consists of multiple levels of tabs that are statically embedded in every HTML
+# page. Disable this option to support browsers that do not have JavaScript,
+# like the Qt help browser.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_MENUS     = YES
+
+# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
+# documentation will contain sections that can be hidden and shown after the
+# page has loaded.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_SECTIONS  = NO
+
+# With HTML_INDEX_NUM_ENTRIES one can control the preferred number of entries
+# shown in the various tree structured indices initially; the user can expand
+# and collapse entries dynamically later on. Doxygen will expand the tree to
+# such a level that at most the specified number of entries are visible (unless
+# a fully collapsed tree already exceeds this amount). So setting the number of
+# entries 1 will produce a full collapsed tree by default. 0 is a special value
+# representing an infinite number of entries and will result in a full expanded
+# tree by default.
+# Minimum value: 0, maximum value: 9999, default value: 100.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_INDEX_NUM_ENTRIES = 100
+
+# If the GENERATE_DOCSET tag is set to YES, additional index files will be
+# generated that can be used as input for Apple's Xcode 3 integrated development
+# environment (see: https://developer.apple.com/xcode/), introduced with OSX
+# 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# Makefile in the HTML output directory. Running make will produce the docset in
+# that directory and running make install will install the docset in
+# ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
+# startup. See https://developer.apple.com/library/archive/featuredarticles/Doxy
+# genXcode/_index.html for more information.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_DOCSET        = NO
+
+# This tag determines the name of the docset feed. A documentation feed provides
+# an umbrella under which multiple documentation sets from a single provider
+# (such as a company or product suite) can be grouped.
+# The default value is: Doxygen generated docs.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_FEEDNAME        = "Doxygen generated docs"
+
+# This tag specifies a string that should uniquely identify the documentation
+# set bundle. This should be a reverse domain-name style string, e.g.
+# com.mycompany.MyDocSet. Doxygen will append .docset to the name.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_BUNDLE_ID       = org.doxygen.Project
+
+# The DOCSET_PUBLISHER_ID tag specifies a string that should uniquely identify
+# the documentation publisher. This should be a reverse domain-name style
+# string, e.g. com.mycompany.MyDocSet.documentation.
+# The default value is: org.doxygen.Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_ID    = org.doxygen.Publisher
+
+# The DOCSET_PUBLISHER_NAME tag identifies the documentation publisher.
+# The default value is: Publisher.
+# This tag requires that the tag GENERATE_DOCSET is set to YES.
+
+DOCSET_PUBLISHER_NAME  = Publisher
+
+# If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
+# additional HTML index files: index.hhp, index.hhc, and index.hhk. The
+# index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
+# (see: https://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# Windows.
+#
+# The HTML Help Workshop contains a compiler that can convert all HTML output
+# generated by doxygen into a single compiled HTML file (.chm). Compiled HTML
+# files are now used as the Windows 98 help format, and will replace the old
+# Windows help format (.hlp) on all Windows platforms in the future. Compressed
+# HTML files also contain an index, a table of contents, and you can search for
+# words in the documentation. The HTML workshop also contains a viewer for
+# compressed HTML files.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_HTMLHELP      = NO
+
+# The CHM_FILE tag can be used to specify the file name of the resulting .chm
+# file. You can add a path in front of the file if the result should not be
+# written to the html output directory.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_FILE               =
+
+# The HHC_LOCATION tag can be used to specify the location (absolute path
+# including file name) of the HTML help compiler (hhc.exe). If non-empty,
+# doxygen will try to run the HTML help compiler on the generated index.hhp.
+# The file has to be specified with full path.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+HHC_LOCATION           =
+
+# The GENERATE_CHI flag controls if a separate .chi index file is generated
+# (YES) or that it should be included in the master .chm file (NO).
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+GENERATE_CHI           = NO
+
+# The CHM_INDEX_ENCODING is used to encode HtmlHelp index (hhk), content (hhc)
+# and project file content.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+CHM_INDEX_ENCODING     =
+
+# The BINARY_TOC flag controls whether a binary table of contents is generated
+# (YES) or a normal table of contents (NO) in the .chm file. Furthermore it
+# enables the Previous and Next buttons.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+BINARY_TOC             = NO
+
+# The TOC_EXPAND flag can be set to YES to add extra items for group members to
+# the table of contents of the HTML help documentation and to the tree view.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTMLHELP is set to YES.
+
+TOC_EXPAND             = NO
+
+# If the GENERATE_QHP tag is set to YES and both QHP_NAMESPACE and
+# QHP_VIRTUAL_FOLDER are set, an additional index file will be generated that
+# can be used as input for Qt's qhelpgenerator to generate a Qt Compressed Help
+# (.qch) of the generated HTML documentation.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_QHP           = NO
+
+# If the QHG_LOCATION tag is specified, the QCH_FILE tag can be used to specify
+# the file name of the resulting .qch file. The path specified is relative to
+# the HTML output folder.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QCH_FILE               =
+
+# The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
+# Project output. For more information please see Qt Help Project / Namespace
+# (see: https://doc.qt.io/archives/qt-4.8/qthelpproject.html#namespace).
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_NAMESPACE          = org.doxygen.Project
+
+# The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
+# Help Project output. For more information please see Qt Help Project / Virtual
+# Folders (see: https://doc.qt.io/archives/qt-4.8/qthelpproject.html#virtual-
+# folders).
+# The default value is: doc.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_VIRTUAL_FOLDER     = doc
+
+# If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
+# filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: https://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_NAME   =
+
+# The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
+# custom filter to add. For more information please see Qt Help Project / Custom
+# Filters (see: https://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-
+# filters).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_CUST_FILTER_ATTRS  =
+
+# The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
+# project's filter section matches. Qt Help Project / Filter Attributes (see:
+# https://doc.qt.io/archives/qt-4.8/qthelpproject.html#filter-attributes).
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHP_SECT_FILTER_ATTRS  =
+
+# The QHG_LOCATION tag can be used to specify the location of Qt's
+# qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
+# generated .qhp file.
+# This tag requires that the tag GENERATE_QHP is set to YES.
+
+QHG_LOCATION           =
+
+# If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
+# generated, together with the HTML files, they form an Eclipse help plugin. To
+# install this plugin and make it available under the help contents menu in
+# Eclipse, the contents of the directory containing the HTML and XML files needs
+# to be copied into the plugins directory of eclipse. The name of the directory
+# within the plugins directory should be the same as the ECLIPSE_DOC_ID value.
+# After copying Eclipse needs to be restarted before the help appears.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_ECLIPSEHELP   = NO
+
+# A unique identifier for the Eclipse help plugin. When installing the plugin
+# the directory name containing the HTML and XML files should also have this
+# name. Each documentation set should have its own identifier.
+# The default value is: org.doxygen.Project.
+# This tag requires that the tag GENERATE_ECLIPSEHELP is set to YES.
+
+ECLIPSE_DOC_ID         = org.doxygen.Project
+
+# If you want full control over the layout of the generated HTML pages it might
+# be necessary to disable the index and replace it with your own. The
+# DISABLE_INDEX tag can be used to turn on/off the condensed index (tabs) at top
+# of each HTML page. A value of NO enables the index and the value YES disables
+# it. Since the tabs in the index contain the same information as the navigation
+# tree, you can set this option to YES if you also set GENERATE_TREEVIEW to YES.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+DISABLE_INDEX          = NO
+
+# The GENERATE_TREEVIEW tag is used to specify whether a tree-like index
+# structure should be generated to display hierarchical information. If the tag
+# value is set to YES, a side panel will be generated containing a tree-like
+# index structure (just like the one that is generated for HTML Help). For this
+# to work a browser that supports JavaScript, DHTML, CSS and frames is required
+# (i.e. any modern browser). Windows users are probably better off using the
+# HTML help feature. Via custom style sheets (see HTML_EXTRA_STYLESHEET) one can
+# further fine-tune the look of the index. As an example, the default style
+# sheet generated by doxygen has an example that shows how to put an image at
+# the root of the tree instead of the PROJECT_NAME. Since the tree basically has
+# the same information as the tab index, you could consider setting
+# DISABLE_INDEX to YES when enabling this option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+GENERATE_TREEVIEW      = NO
+
+# The ENUM_VALUES_PER_LINE tag can be used to set the number of enum values that
+# doxygen will group on one line in the generated HTML documentation.
+#
+# Note that a value of 0 will completely suppress the enum values from appearing
+# in the overview section.
+# Minimum value: 0, maximum value: 20, default value: 4.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+ENUM_VALUES_PER_LINE   = 4
+
+# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be used
+# to set the initial width (in pixels) of the frame in which the tree is shown.
+# Minimum value: 0, maximum value: 1500, default value: 250.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+TREEVIEW_WIDTH         = 250
+
+# If the EXT_LINKS_IN_WINDOW option is set to YES, doxygen will open links to
+# external symbols imported via tag files in a separate window.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+EXT_LINKS_IN_WINDOW    = NO
+
+# If the HTML_FORMULA_FORMAT option is set to svg, doxygen will use the pdf2svg
+# tool (see https://github.com/dawbarton/pdf2svg) or inkscape (see
+# https://inkscape.org) to generate formulas as SVG images instead of PNGs for
+# the HTML output. These images will generally look nicer at scaled resolutions.
+# Possible values are: png The default and svg Looks nicer but requires the
+# pdf2svg tool.
+# The default value is: png.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_FORMULA_FORMAT    = png
+
+# Use this tag to change the font size of LaTeX formulas included as images in
+# the HTML documentation. When you change the font size after a successful
+# doxygen run you need to manually remove any form_*.png images from the HTML
+# output directory to force them to be regenerated.
+# Minimum value: 8, maximum value: 50, default value: 10.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_FONTSIZE       = 10
+
+# Use the FORMULA_TRANSPARENT tag to determine whether or not the images
+# generated for formulas are transparent PNGs. Transparent PNGs are not
+# supported properly for IE 6.0, but are supported on all modern browsers.
+#
+# Note that when changing this option you need to delete any form_*.png files in
+# the HTML output directory before the changes have effect.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+FORMULA_TRANSPARENT    = YES
+
+# The FORMULA_MACROFILE can contain LaTeX \newcommand and \renewcommand commands
+# to create new LaTeX commands to be used in formulas as building blocks. See
+# the section "Including formulas" for details.
+
+FORMULA_MACROFILE      =
+
+# Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
+# https://www.mathjax.org) which uses client side JavaScript for the rendering
+# instead of using pre-rendered bitmaps. Use this if you do not have LaTeX
+# installed or if you want to formulas look prettier in the HTML output. When
+# enabled you may also need to install MathJax separately and configure the path
+# to it using the MATHJAX_RELPATH option.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+USE_MATHJAX            = NO
+
+# When MathJax is enabled you can set the default output format to be used for
+# the MathJax output. See the MathJax site (see:
+# http://docs.mathjax.org/en/latest/output.html) for more details.
+# Possible values are: HTML-CSS (which is slower, but has the best
+# compatibility), NativeMML (i.e. MathML) and SVG.
+# The default value is: HTML-CSS.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_FORMAT         = HTML-CSS
+
+# When MathJax is enabled you need to specify the location relative to the HTML
+# output directory using the MATHJAX_RELPATH option. The destination directory
+# should contain the MathJax.js script. For instance, if the mathjax directory
+# is located at the same level as the HTML output directory, then
+# MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
+# Content Delivery Network so you can quickly see the result without installing
+# MathJax. However, it is strongly recommended to install a local copy of
+# MathJax from https://www.mathjax.org before deployment.
+# The default value is: https://cdn.jsdelivr.net/npm/mathjax@2.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_RELPATH        = https://cdn.jsdelivr.net/npm/mathjax@2
+
+# The MATHJAX_EXTENSIONS tag can be used to specify one or more MathJax
+# extension names that should be enabled during MathJax rendering. For example
+# MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_EXTENSIONS     =
+
+# The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
+# of code that will be used on startup of the MathJax code. See the MathJax site
+# (see: http://docs.mathjax.org/en/latest/output.html) for more details. For an
+# example see the documentation.
+# This tag requires that the tag USE_MATHJAX is set to YES.
+
+MATHJAX_CODEFILE       =
+
+# When the SEARCHENGINE tag is enabled doxygen will generate a search box for
+# the HTML output. The underlying search engine uses javascript and DHTML and
+# should work on any modern browser. Note that when using HTML help
+# (GENERATE_HTMLHELP), Qt help (GENERATE_QHP), or docsets (GENERATE_DOCSET)
+# there is already a search function so this one should typically be disabled.
+# For large projects the javascript based search engine can be slow, then
+# enabling SERVER_BASED_SEARCH may provide a better solution. It is possible to
+# search using the keyboard; to jump to the search box use <access key> + S
+# (what the <access key> is depends on the OS and browser, but it is typically
+# <CTRL>, <ALT>/<option>, or both). Inside the search box use the <cursor down
+# key> to jump into the search results window, the results can be navigated
+# using the <cursor keys>. Press <Enter> to select an item or <escape> to cancel
+# the search. The filter options can be selected when the cursor is inside the
+# search box by pressing <Shift>+<cursor down>. Also here use the <cursor keys>
+# to select a filter and <Enter> or <escape> to activate or cancel the filter
+# option.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+SEARCHENGINE           = YES
+
+# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
+# implemented using a web server instead of a web client using JavaScript. There
+# are two flavors of web server based searching depending on the EXTERNAL_SEARCH
+# setting. When disabled, doxygen will generate a PHP script for searching and
+# an index file used by the script. When EXTERNAL_SEARCH is enabled the indexing
+# and searching needs to be provided by external tools. See the section
+# "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SERVER_BASED_SEARCH    = NO
+
+# When EXTERNAL_SEARCH tag is enabled doxygen will no longer generate the PHP
+# script for searching. Instead the search results are written to an XML file
+# which needs to be processed by an external indexer. Doxygen will invoke an
+# external search engine pointed to by the SEARCHENGINE_URL option to obtain the
+# search results.
+#
+# Doxygen ships with an example indexer (doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: https://xapian.org/).
+#
+# See the section "External Indexing and Searching" for details.
+# The default value is: NO.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH        = NO
+
+# The SEARCHENGINE_URL should point to a search engine hosted by a web server
+# which will return the search results when EXTERNAL_SEARCH is enabled.
+#
+# Doxygen ships with an example indexer (doxyindexer) and search engine
+# (doxysearch.cgi) which are based on the open source search engine library
+# Xapian (see: https://xapian.org/). See the section "External Indexing and
+# Searching" for details.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHENGINE_URL       =
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
+# search data is written to a file for indexing by an external tool. With the
+# SEARCHDATA_FILE tag the name of this file can be specified.
+# The default file is: searchdata.xml.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+SEARCHDATA_FILE        = searchdata.xml
+
+# When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the
+# EXTERNAL_SEARCH_ID tag can be used as an identifier for the project. This is
+# useful in combination with EXTRA_SEARCH_MAPPINGS to search through multiple
+# projects and redirect the results back to the right project.
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTERNAL_SEARCH_ID     =
+
+# The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
+# projects other than the one defined by this configuration file, but that are
+# all added to the same external search index. Each project needs to have a
+# unique id set via EXTERNAL_SEARCH_ID. The search mapping then maps the id of
+# to a relative location where the documentation can be found. The format is:
+# EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
+# This tag requires that the tag SEARCHENGINE is set to YES.
+
+EXTRA_SEARCH_MAPPINGS  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the LaTeX output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_LATEX tag is set to YES, doxygen will generate LaTeX output.
+# The default value is: YES.
+
+GENERATE_LATEX         = NO
+
+# The LATEX_OUTPUT tag is used to specify where the LaTeX docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: latex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_OUTPUT           = latex
+
+# The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
+# invoked.
+#
+# Note that when not enabling USE_PDFLATEX the default is latex when enabling
+# USE_PDFLATEX the default is pdflatex and when in the later case latex is
+# chosen this is overwritten by pdflatex. For specific output languages the
+# default can have been set differently, this depends on the implementation of
+# the output language.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_CMD_NAME         =
+
+# The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
+# index for LaTeX.
+# Note: This tag is used in the Makefile / make.bat.
+# See also: LATEX_MAKEINDEX_CMD for the part in the generated output file
+# (.tex).
+# The default file is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+MAKEINDEX_CMD_NAME     = makeindex
+
+# The LATEX_MAKEINDEX_CMD tag can be used to specify the command name to
+# generate index for LaTeX. In case there is no backslash (\) as first character
+# it will be automatically added in the LaTeX code.
+# Note: This tag is used in the generated output file (.tex).
+# See also: MAKEINDEX_CMD_NAME for the part in the Makefile / make.bat.
+# The default value is: makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_MAKEINDEX_CMD    = makeindex
+
+# If the COMPACT_LATEX tag is set to YES, doxygen generates more compact LaTeX
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+COMPACT_LATEX          = NO
+
+# The PAPER_TYPE tag can be used to set the paper type that is used by the
+# printer.
+# Possible values are: a4 (210 x 297 mm), letter (8.5 x 11 inches), legal (8.5 x
+# 14 inches) and executive (7.25 x 10.5 inches).
+# The default value is: a4.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PAPER_TYPE             = a4
+
+# The EXTRA_PACKAGES tag can be used to specify one or more LaTeX package names
+# that should be included in the LaTeX output. The package can be specified just
+# by its name or with the correct syntax as to be used with the LaTeX
+# \usepackage command. To get the times font for instance you can specify :
+# EXTRA_PACKAGES=times or EXTRA_PACKAGES={times}
+# To use the option intlimits with the amsmath package you can specify:
+# EXTRA_PACKAGES=[intlimits]{amsmath}
+# If left blank no extra packages will be included.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+EXTRA_PACKAGES         =
+
+# The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
+# generated LaTeX document. The header should contain everything until the first
+# chapter. If it is left blank doxygen will generate a standard header. See
+# section "Doxygen usage" for information on how to let doxygen write the
+# default header to a separate file.
+#
+# Note: Only use a user-defined header if you know what you are doing! The
+# following commands have a special meaning inside the header: $title,
+# $datetime, $date, $doxygenversion, $projectname, $projectnumber,
+# $projectbrief, $projectlogo. Doxygen will replace $title with the empty
+# string, for the replacement values of the other commands the user is referred
+# to HTML_HEADER.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HEADER           =
+
+# The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
+# generated LaTeX document. The footer should contain everything after the last
+# chapter. If it is left blank doxygen will generate a standard footer. See
+# LATEX_HEADER for more information on how to generate a default footer and what
+# special commands can be used inside the footer.
+#
+# Note: Only use a user-defined footer if you know what you are doing!
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_FOOTER           =
+
+# The LATEX_EXTRA_STYLESHEET tag can be used to specify additional user-defined
+# LaTeX style sheets that are included after the standard style sheets created
+# by doxygen. Using this option one can overrule certain style aspects. Doxygen
+# will copy the style sheet files to the output directory.
+# Note: The order of the extra style sheet files is of importance (e.g. the last
+# style sheet in the list overrules the setting of the previous ones in the
+# list).
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_STYLESHEET =
+
+# The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
+# other source files which should be copied to the LATEX_OUTPUT output
+# directory. Note that the files will be copied as-is; there are no commands or
+# markers available.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EXTRA_FILES      =
+
+# If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
+# prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
+# contain links (just like the HTML output) instead of page references. This
+# makes the output suitable for online browsing using a PDF viewer.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+PDF_HYPERLINKS         = YES
+
+# If the USE_PDFLATEX tag is set to YES, doxygen will use pdflatex to generate
+# the PDF file directly from the LaTeX files. Set this option to YES, to get a
+# higher quality PDF documentation.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+USE_PDFLATEX           = YES
+
+# If the LATEX_BATCHMODE tag is set to YES, doxygen will add the \batchmode
+# command to the generated LaTeX files. This will instruct LaTeX to keep running
+# if errors occur, instead of asking the user for help. This option is also used
+# when generating formulas in HTML.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BATCHMODE        = NO
+
+# If the LATEX_HIDE_INDICES tag is set to YES then doxygen will not include the
+# index chapters (such as File Index, Compound Index, etc.) in the output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_HIDE_INDICES     = NO
+
+# If the LATEX_SOURCE_CODE tag is set to YES then doxygen will include source
+# code with syntax highlighting in the LaTeX output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_SOURCE_CODE      = NO
+
+# The LATEX_BIB_STYLE tag can be used to specify the style to use for the
+# bibliography, e.g. plainnat, or ieeetr. See
+# https://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# The default value is: plain.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_BIB_STYLE        = plain
+
+# If the LATEX_TIMESTAMP tag is set to YES then the footer of each generated
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_TIMESTAMP        = NO
+
+# The LATEX_EMOJI_DIRECTORY tag is used to specify the (relative or absolute)
+# path from which the emoji images will be read. If a relative path is entered,
+# it will be relative to the LATEX_OUTPUT directory. If left blank the
+# LATEX_OUTPUT directory will be used.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EMOJI_DIRECTORY  =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the RTF output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_RTF tag is set to YES, doxygen will generate RTF output. The
+# RTF output is optimized for Word 97 and may not look too pretty with other RTF
+# readers/editors.
+# The default value is: NO.
+
+GENERATE_RTF           = NO
+
+# The RTF_OUTPUT tag is used to specify where the RTF docs will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: rtf.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_OUTPUT             = rtf
+
+# If the COMPACT_RTF tag is set to YES, doxygen generates more compact RTF
+# documents. This may be useful for small projects and may help to save some
+# trees in general.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+COMPACT_RTF            = NO
+
+# If the RTF_HYPERLINKS tag is set to YES, the RTF that is generated will
+# contain hyperlink fields. The RTF file will contain links (just like the HTML
+# output) instead of page references. This makes the output suitable for online
+# browsing using Word or some other Word compatible readers that support those
+# fields.
+#
+# Note: WordPad (write) and others do not support links.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_HYPERLINKS         = NO
+
+# Load stylesheet definitions from file. Syntax is similar to doxygen's
+# configuration file, i.e. a series of assignments. You only have to provide
+# replacements, missing definitions are set to their default value.
+#
+# See also section "Doxygen usage" for information on how to generate the
+# default style sheet that doxygen normally uses.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_STYLESHEET_FILE    =
+
+# Set optional variables used in the generation of an RTF document. Syntax is
+# similar to doxygen's configuration file. A template extensions file can be
+# generated using doxygen -e rtf extensionFile.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_EXTENSIONS_FILE    =
+
+# If the RTF_SOURCE_CODE tag is set to YES then doxygen will include source code
+# with syntax highlighting in the RTF output.
+#
+# Note that which sources are shown also depends on other settings such as
+# SOURCE_BROWSER.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_RTF is set to YES.
+
+RTF_SOURCE_CODE        = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the man page output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_MAN tag is set to YES, doxygen will generate man pages for
+# classes and files.
+# The default value is: NO.
+
+GENERATE_MAN           = NO
+
+# The MAN_OUTPUT tag is used to specify where the man pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it. A directory man3 will be created inside the directory specified by
+# MAN_OUTPUT.
+# The default directory is: man.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_OUTPUT             = man
+
+# The MAN_EXTENSION tag determines the extension that is added to the generated
+# man pages. In case the manual section does not start with a number, the number
+# 3 is prepended. The dot (.) at the beginning of the MAN_EXTENSION tag is
+# optional.
+# The default value is: .3.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_EXTENSION          = .3
+
+# The MAN_SUBDIR tag determines the name of the directory created within
+# MAN_OUTPUT in which the man pages are placed. If defaults to man followed by
+# MAN_EXTENSION with the initial . removed.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_SUBDIR             =
+
+# If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
+# will generate one additional man file for each entity documented in the real
+# man page(s). These additional files only source the real man page, but without
+# them the man command would be unable to find the correct page.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_MAN is set to YES.
+
+MAN_LINKS              = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the XML output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_XML tag is set to YES, doxygen will generate an XML file that
+# captures the structure of the code including all documentation.
+# The default value is: NO.
+
+GENERATE_XML           = NO
+
+# The XML_OUTPUT tag is used to specify where the XML pages will be put. If a
+# relative path is entered the value of OUTPUT_DIRECTORY will be put in front of
+# it.
+# The default directory is: xml.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_OUTPUT             = xml
+
+# If the XML_PROGRAMLISTING tag is set to YES, doxygen will dump the program
+# listings (including syntax highlighting and cross-referencing information) to
+# the XML output. Note that enabling this will significantly increase the size
+# of the XML output.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_PROGRAMLISTING     = YES
+
+# If the XML_NS_MEMB_FILE_SCOPE tag is set to YES, doxygen will include
+# namespace members in file scope as well, matching the HTML output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_NS_MEMB_FILE_SCOPE = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the DOCBOOK output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_DOCBOOK tag is set to YES, doxygen will generate Docbook files
+# that can be used to generate PDF.
+# The default value is: NO.
+
+GENERATE_DOCBOOK       = NO
+
+# The DOCBOOK_OUTPUT tag is used to specify where the Docbook pages will be put.
+# If a relative path is entered the value of OUTPUT_DIRECTORY will be put in
+# front of it.
+# The default directory is: docbook.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_OUTPUT         = docbook
+
+# If the DOCBOOK_PROGRAMLISTING tag is set to YES, doxygen will include the
+# program listings (including syntax highlighting and cross-referencing
+# information) to the DOCBOOK output. Note that enabling this will significantly
+# increase the size of the DOCBOOK output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_DOCBOOK is set to YES.
+
+DOCBOOK_PROGRAMLISTING = NO
+
+#---------------------------------------------------------------------------
+# Configuration options for the AutoGen Definitions output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_AUTOGEN_DEF tag is set to YES, doxygen will generate an
+# AutoGen Definitions (see http://autogen.sourceforge.net/) file that captures
+# the structure of the code including all documentation. Note that this feature
+# is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_AUTOGEN_DEF   = NO
+
+#---------------------------------------------------------------------------
+# Configuration options related to the Perl module output
+#---------------------------------------------------------------------------
+
+# If the GENERATE_PERLMOD tag is set to YES, doxygen will generate a Perl module
+# file that captures the structure of the code including all documentation.
+#
+# Note that this feature is still experimental and incomplete at the moment.
+# The default value is: NO.
+
+GENERATE_PERLMOD       = NO
+
+# If the PERLMOD_LATEX tag is set to YES, doxygen will generate the necessary
+# Makefile rules, Perl scripts and LaTeX code to be able to generate PDF and DVI
+# output from the Perl module output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_LATEX          = NO
+
+# If the PERLMOD_PRETTY tag is set to YES, the Perl module output will be nicely
+# formatted so it can be parsed by a human reader. This is useful if you want to
+# understand what is going on. On the other hand, if this tag is set to NO, the
+# size of the Perl module output will be much smaller and Perl will parse it
+# just the same.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_PRETTY         = YES
+
+# The names of the make variables in the generated doxyrules.make file are
+# prefixed with the string contained in PERLMOD_MAKEVAR_PREFIX. This is useful
+# so different doxyrules.make files included by the same Makefile don't
+# overwrite each other's variables.
+# This tag requires that the tag GENERATE_PERLMOD is set to YES.
+
+PERLMOD_MAKEVAR_PREFIX =
+
+#---------------------------------------------------------------------------
+# Configuration options related to the preprocessor
+#---------------------------------------------------------------------------
+
+# If the ENABLE_PREPROCESSING tag is set to YES, doxygen will evaluate all
+# C-preprocessor directives found in the sources and include files.
+# The default value is: YES.
+
+ENABLE_PREPROCESSING   = YES
+
+# If the MACRO_EXPANSION tag is set to YES, doxygen will expand all macro names
+# in the source code. If set to NO, only conditional compilation will be
+# performed. Macro expansion can be done in a controlled way by setting
+# EXPAND_ONLY_PREDEF to YES.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+MACRO_EXPANSION        = NO
+
+# If the EXPAND_ONLY_PREDEF and MACRO_EXPANSION tags are both set to YES then
+# the macro expansion is limited to the macros specified with the PREDEFINED and
+# EXPAND_AS_DEFINED tags.
+# The default value is: NO.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_ONLY_PREDEF     = NO
+
+# If the SEARCH_INCLUDES tag is set to YES, the include files in the
+# INCLUDE_PATH will be searched if a #include is found.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SEARCH_INCLUDES        = YES
+
+# The INCLUDE_PATH tag can be used to specify one or more directories that
+# contain include files that are not input files but should be processed by the
+# preprocessor.
+# This tag requires that the tag SEARCH_INCLUDES is set to YES.
+
+INCLUDE_PATH           =
+
+# You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
+# patterns (like *.h and *.hpp) to filter out the header-files in the
+# directories. If left blank, the patterns specified with FILE_PATTERNS will be
+# used.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+INCLUDE_FILE_PATTERNS  =
+
+# The PREDEFINED tag can be used to specify one or more macro names that are
+# defined before the preprocessor is started (similar to the -D option of e.g.
+# gcc). The argument of the tag is a list of macros of the form: name or
+# name=definition (no spaces). If the definition and the "=" are omitted, "=1"
+# is assumed. To prevent a macro definition from being undefined via #undef or
+# recursively expanded use the := operator instead of the = operator.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+PREDEFINED             =
+
+# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
+# tag can be used to specify a list of macro names that should be expanded. The
+# macro definition that is found in the sources will be used. Use the PREDEFINED
+# tag if you want to use a different macro definition that overrules the
+# definition found in the source code.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+EXPAND_AS_DEFINED      =
+
+# If the SKIP_FUNCTION_MACROS tag is set to YES then doxygen's preprocessor will
+# remove all references to function-like macros that are alone on a line, have
+# an all uppercase name, and do not end with a semicolon. Such function macros
+# are typically used for boiler-plate code, and will confuse the parser if not
+# removed.
+# The default value is: YES.
+# This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
+
+SKIP_FUNCTION_MACROS   = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to external references
+#---------------------------------------------------------------------------
+
+# The TAGFILES tag can be used to specify one or more tag files. For each tag
+# file the location of the external documentation should be added. The format of
+# a tag file without this location is as follows:
+# TAGFILES = file1 file2 ...
+# Adding location for the tag files is done as follows:
+# TAGFILES = file1=loc1 "file2 = loc2" ...
+# where loc1 and loc2 can be relative or absolute paths or URLs. See the
+# section "Linking to external documentation" for more information about the use
+# of tag files.
+# Note: Each tag file must have a unique name (where the name does NOT include
+# the path). If a tag file is not located in the directory in which doxygen is
+# run, you must also specify the path to the tagfile here.
+
+TAGFILES               =
+
+# When a file name is specified after GENERATE_TAGFILE, doxygen will create a
+# tag file that is based on the input files it reads. See section "Linking to
+# external documentation" for more information about the usage of tag files.
+
+GENERATE_TAGFILE       =
+
+# If the ALLEXTERNALS tag is set to YES, all external class will be listed in
+# the class index. If set to NO, only the inherited external classes will be
+# listed.
+# The default value is: NO.
+
+ALLEXTERNALS           = NO
+
+# If the EXTERNAL_GROUPS tag is set to YES, all external groups will be listed
+# in the modules index. If set to NO, only the current project's groups will be
+# listed.
+# The default value is: YES.
+
+EXTERNAL_GROUPS        = YES
+
+# If the EXTERNAL_PAGES tag is set to YES, all external pages will be listed in
+# the related pages index. If set to NO, only the current project's pages will
+# be listed.
+# The default value is: YES.
+
+EXTERNAL_PAGES         = YES
+
+#---------------------------------------------------------------------------
+# Configuration options related to the dot tool
+#---------------------------------------------------------------------------
+
+# If the CLASS_DIAGRAMS tag is set to YES, doxygen will generate a class diagram
+# (in HTML and LaTeX) for classes with base or super classes. Setting the tag to
+# NO turns the diagrams off. Note that this option also works with HAVE_DOT
+# disabled, but it is recommended to install and use dot, since it yields more
+# powerful graphs.
+# The default value is: YES.
+
+CLASS_DIAGRAMS         = YES
+
+# You can include diagrams made with dia in doxygen documentation. Doxygen will
+# then run dia to produce the diagram and insert it in the documentation. The
+# DIA_PATH tag allows you to specify the directory where the dia binary resides.
+# If left empty dia is assumed to be found in the default search path.
+
+DIA_PATH               =
+
+# If set to YES the inheritance and collaboration graphs will hide inheritance
+# and usage relations if the target is undocumented or is not a class.
+# The default value is: YES.
+
+HIDE_UNDOC_RELATIONS   = YES
+
+# If you set the HAVE_DOT tag to YES then doxygen will assume the dot tool is
+# available from the path. This tool is part of Graphviz (see:
+# http://www.graphviz.org/), a graph visualization toolkit from AT&T and Lucent
+# Bell Labs. The other options in this section have no effect if this option is
+# set to NO
+# The default value is: NO.
+
+HAVE_DOT               = NO
+
+# The DOT_NUM_THREADS specifies the number of dot invocations doxygen is allowed
+# to run in parallel. When set to 0 doxygen will base this on the number of
+# processors available in the system. You can set it explicitly to a value
+# larger than 0 to get control over the balance between CPU load and processing
+# speed.
+# Minimum value: 0, maximum value: 32, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_NUM_THREADS        = 0
+
+# When you want a differently looking font in the dot files that doxygen
+# generates you can specify the font name using DOT_FONTNAME. You need to make
+# sure dot is able to find the font, which can be done by putting it in a
+# standard location or by setting the DOTFONTPATH environment variable or by
+# setting DOT_FONTPATH to the directory containing the font.
+# The default value is: Helvetica.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTNAME           = Helvetica
+
+# The DOT_FONTSIZE tag can be used to set the size (in points) of the font of
+# dot graphs.
+# Minimum value: 4, maximum value: 24, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTSIZE           = 10
+
+# By default doxygen will tell dot to use the default font as specified with
+# DOT_FONTNAME. If you specify a different font using DOT_FONTNAME you can set
+# the path where dot can find it using this tag.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_FONTPATH           =
+
+# If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
+# each documented class showing the direct and indirect inheritance relations.
+# Setting this tag to YES will force the CLASS_DIAGRAMS tag to NO.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CLASS_GRAPH            = YES
+
+# If the COLLABORATION_GRAPH tag is set to YES then doxygen will generate a
+# graph for each documented class showing the direct and indirect implementation
+# dependencies (inheritance, containment, and class references variables) of the
+# class with other documented classes.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+COLLABORATION_GRAPH    = YES
+
+# If the GROUP_GRAPHS tag is set to YES then doxygen will generate a graph for
+# groups, showing the direct groups dependencies.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GROUP_GRAPHS           = YES
+
+# If the UML_LOOK tag is set to YES, doxygen will generate inheritance and
+# collaboration diagrams in a style similar to the OMG's Unified Modeling
+# Language.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LOOK               = NO
+
+# If the UML_LOOK tag is enabled, the fields and methods are shown inside the
+# class node. If there are many fields or methods and many nodes the graph may
+# become too big to be useful. The UML_LIMIT_NUM_FIELDS threshold limits the
+# number of items for each type to make the size more manageable. Set this to 0
+# for no limit. Note that the threshold may be exceeded by 50% before the limit
+# is enforced. So when you set the threshold to 10, up to 15 fields may appear,
+# but if the number exceeds 15, the total amount of fields shown is limited to
+# 10.
+# Minimum value: 0, maximum value: 100, default value: 10.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+UML_LIMIT_NUM_FIELDS   = 10
+
+# If the TEMPLATE_RELATIONS tag is set to YES then the inheritance and
+# collaboration graphs will show the relations between templates and their
+# instances.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+TEMPLATE_RELATIONS     = NO
+
+# If the INCLUDE_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are set to
+# YES then doxygen will generate a graph for each documented file showing the
+# direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDE_GRAPH          = YES
+
+# If the INCLUDED_BY_GRAPH, ENABLE_PREPROCESSING and SEARCH_INCLUDES tags are
+# set to YES then doxygen will generate a graph for each documented file showing
+# the direct and indirect include dependencies of the file with other documented
+# files.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INCLUDED_BY_GRAPH      = YES
+
+# If the CALL_GRAPH tag is set to YES then doxygen will generate a call
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable call graphs for selected
+# functions only using the \callgraph command. Disabling a call graph can be
+# accomplished by means of the command \hidecallgraph.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALL_GRAPH             = NO
+
+# If the CALLER_GRAPH tag is set to YES then doxygen will generate a caller
+# dependency graph for every global function or class method.
+#
+# Note that enabling this option will significantly increase the time of a run.
+# So in most cases it will be better to enable caller graphs for selected
+# functions only using the \callergraph command. Disabling a caller graph can be
+# accomplished by means of the command \hidecallergraph.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+CALLER_GRAPH           = NO
+
+# If the GRAPHICAL_HIERARCHY tag is set to YES then doxygen will graphical
+# hierarchy of all classes instead of a textual one.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GRAPHICAL_HIERARCHY    = YES
+
+# If the DIRECTORY_GRAPH tag is set to YES then doxygen will show the
+# dependencies a directory has on other directories in a graphical way. The
+# dependency relations are determined by the #include relations between the
+# files in the directories.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DIRECTORY_GRAPH        = YES
+
+# The DOT_IMAGE_FORMAT tag can be used to set the image format of the images
+# generated by dot. For an explanation of the image formats see the section
+# output formats in the documentation of the dot tool (Graphviz (see:
+# http://www.graphviz.org/)).
+# Note: If you choose svg you need to set HTML_FILE_EXTENSION to xhtml in order
+# to make the SVG files visible in IE 9+ (other browsers do not have this
+# requirement).
+# Possible values are: png, jpg, gif, svg, png:gd, png:gd:gd, png:cairo,
+# png:cairo:gd, png:cairo:cairo, png:cairo:gdiplus, png:gdiplus and
+# png:gdiplus:gdiplus.
+# The default value is: png.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_IMAGE_FORMAT       = png
+
+# If DOT_IMAGE_FORMAT is set to svg, then this option can be set to YES to
+# enable generation of interactive SVG images that allow zooming and panning.
+#
+# Note that this requires a modern browser other than Internet Explorer. Tested
+# and working are Firefox, Chrome, Safari, and Opera.
+# Note: For IE 9+ you need to set HTML_FILE_EXTENSION to xhtml in order to make
+# the SVG files visible. Older versions of IE do not have SVG support.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+INTERACTIVE_SVG        = NO
+
+# The DOT_PATH tag can be used to specify the path where the dot tool can be
+# found. If left blank, it is assumed the dot tool can be found in the path.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_PATH               =
+
+# The DOTFILE_DIRS tag can be used to specify one or more directories that
+# contain dot files that are included in the documentation (see the \dotfile
+# command).
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOTFILE_DIRS           =
+
+# The MSCFILE_DIRS tag can be used to specify one or more directories that
+# contain msc files that are included in the documentation (see the \mscfile
+# command).
+
+MSCFILE_DIRS           =
+
+# The DIAFILE_DIRS tag can be used to specify one or more directories that
+# contain dia files that are included in the documentation (see the \diafile
+# command).
+
+DIAFILE_DIRS           =
+
+# When using plantuml, the PLANTUML_JAR_PATH tag should be used to specify the
+# path where java can find the plantuml.jar file. If left blank, it is assumed
+# PlantUML is not used or called during a preprocessing step. Doxygen will
+# generate a warning when it encounters a \startuml command in this case and
+# will not generate output for the diagram.
+
+PLANTUML_JAR_PATH      =
+
+# When using plantuml, the PLANTUML_CFG_FILE tag can be used to specify a
+# configuration file for plantuml.
+
+PLANTUML_CFG_FILE      =
+
+# When using plantuml, the specified paths are searched for files specified by
+# the !include statement in a plantuml block.
+
+PLANTUML_INCLUDE_PATH  =
+
+# The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
+# that will be shown in the graph. If the number of nodes in a graph becomes
+# larger than this value, doxygen will truncate the graph, which is visualized
+# by representing a node as a red box. Note that doxygen if the number of direct
+# children of the root node in a graph is already larger than
+# DOT_GRAPH_MAX_NODES then the graph will not be shown at all. Also note that
+# the size of a graph can be further restricted by MAX_DOT_GRAPH_DEPTH.
+# Minimum value: 0, maximum value: 10000, default value: 50.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_GRAPH_MAX_NODES    = 50
+
+# The MAX_DOT_GRAPH_DEPTH tag can be used to set the maximum depth of the graphs
+# generated by dot. A depth value of 3 means that only nodes reachable from the
+# root by following a path via at most 3 edges will be shown. Nodes that lay
+# further from the root node will be omitted. Note that setting this option to 1
+# or 2 may greatly reduce the computation time needed for large code bases. Also
+# note that the size of a graph can be further restricted by
+# DOT_GRAPH_MAX_NODES. Using a depth of 0 means no depth restriction.
+# Minimum value: 0, maximum value: 1000, default value: 0.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+MAX_DOT_GRAPH_DEPTH    = 0
+
+# Set the DOT_TRANSPARENT tag to YES to generate images with a transparent
+# background. This is disabled by default, because dot on Windows does not seem
+# to support this out of the box.
+#
+# Warning: Depending on the platform used, enabling this option may lead to
+# badly anti-aliased labels on the edges of a graph (i.e. they become hard to
+# read).
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_TRANSPARENT        = NO
+
+# Set the DOT_MULTI_TARGETS tag to YES to allow dot to generate multiple output
+# files in one run (i.e. multiple -o and -T options on the command line). This
+# makes dot run faster, but since only newer versions of dot (>1.8.10) support
+# this, this feature is disabled by default.
+# The default value is: NO.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_MULTI_TARGETS      = NO
+
+# If the GENERATE_LEGEND tag is set to YES doxygen will generate a legend page
+# explaining the meaning of the various boxes and arrows in the dot generated
+# graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+GENERATE_LEGEND        = YES
+
+# If the DOT_CLEANUP tag is set to YES, doxygen will remove the intermediate dot
+# files that are used to generate the various graphs.
+# The default value is: YES.
+# This tag requires that the tag HAVE_DOT is set to YES.
+
+DOT_CLEANUP            = YES
diff --git a/configure.ac b/configure.ac
index efd199c..df43249 100644
--- a/configure.ac
+++ b/configure.ac
@@ -34,6 +34,9 @@ AC_INIT(libXrender, [0.9.10],
 AC_CONFIG_SRCDIR([Makefile.am])
 AC_CONFIG_HEADERS([config.h])
 
+PACKAGE_BRIEF="Library for the Render Extension to the X11 protocol"
+AC_SUBST(PACKAGE_BRIEF)
+
 # Initialize Automake
 AM_INIT_AUTOMAKE([foreign dist-xz])
 
@@ -60,5 +63,6 @@ PKG_CHECK_MODULES(RENDER, [x11 >= 1.6] renderproto >= $RENDER_VERSION)
 
 AC_CONFIG_FILES([Makefile
 		src/Makefile
+		Doxyfile
 		xrender.pc])
 AC_OUTPUT
diff --git a/include/X11/extensions/Xrender.h b/include/X11/extensions/Xrender.h
index 1d1cd08..63770c9 100644
--- a/include/X11/extensions/Xrender.h
+++ b/include/X11/extensions/Xrender.h
@@ -22,177 +22,396 @@
  * Author:  Keith Packard, SuSE, Inc.
  */
 
+/**
+ * @file Xrender.h
+ * @brief XRender library API.
+ */
+
 #ifndef _XRENDER_H_
 #define _XRENDER_H_
 
-#include <X11/Xlib.h>
 #include <X11/Xfuncproto.h>
+#include <X11/Xlib.h>
 #include <X11/Xosdefs.h>
 #include <X11/Xutil.h>
 
 #include <X11/extensions/render.h>
 
+/**
+ * @mainpage libXrender API Documentation.
+ *
+ * Dummy text down here.
+ */
+
+/**
+ * The direct component of a PictFormat.
+ *
+ * It contains a binary description of the color format used by the Picture.
+ *
+ * * A Zero bit alphaMask is declared to have an opaque alpha everywhere.
+ * * A Zero bit redMask, greenMask and blueMask is declared to have red, green,
+ *   blue == 0 everywhere.
+ * * If any of redMask, greenMask or blueMask are zero, all other masks are
+ *   zero.
+ */
 typedef struct {
-    short   red;
-    short   redMask;
-    short   green;
-    short   greenMask;
-    short   blue;
-    short   blueMask;
-    short   alpha;
-    short   alphaMask;
+    /// Red component binary displacement.
+    short red;
+    /// Red component bit mask.
+    short redMask;
+    /// Green component binary displacement.
+    short green;
+    /// Green component bit mask.
+    short greenMask;
+    /// Blue component binary displacement.
+    short blue;
+    /// Blue component bit mask.
+    short blueMask;
+    /// Alpha component binary displacement.
+    short alpha;
+    /// Alpha component bit mask.
+    short alphaMask;
 } XRenderDirectFormat;
 
+/**
+ * A Picture pixel format description.
+ *
+ * It describes the format used by the server to display colors.
+ *
+ * There are two types:
+ * * Direct: Doesn't have a Colormap and the DirectFormat structure describes
+ *   the pixel format.
+ * * Indexed: Has a Colormap and it's DirectFormat structure is filled with
+ *   zeros.
+ */
 typedef struct {
-    PictFormat		id;
-    int			type;
-    int			depth;
-    XRenderDirectFormat	direct;
-    Colormap		colormap;
+    /// XID of this structure server instance.
+    PictFormat id;
+    /// Color management type.
+    int type;
+    /// Pixel bit depth.
+    int depth;
+    /// Color component description.
+    XRenderDirectFormat direct;
+    /// XID of the map of indexed colors on the server.
+    Colormap colormap;
 } XRenderPictFormat;
 
-#define PictFormatID	    (1 << 0)
-#define PictFormatType	    (1 << 1)
-#define PictFormatDepth	    (1 << 2)
-#define PictFormatRed	    (1 << 3)
-#define PictFormatRedMask   (1 << 4)
-#define PictFormatGreen	    (1 << 5)
+/*< XRenderPictFormat template field masks.
+ * @{
+ */
+/// Include ID field. @hideinitializer
+#define PictFormatID (1 << 0)
+/// Include Type field. @hideinitializer
+#define PictFormatType (1 << 1)
+/// Include Depth field. @hideinitializer
+#define PictFormatDepth (1 << 2)
+
+//<--- XRenderPictFormat->direct fields.
+/// Include Direct->Red field. @hideinitializer
+#define PictFormatRed (1 << 3)
+/// Include Direct->RedMask field. @hideinitializer
+#define PictFormatRedMask (1 << 4)
+/// Include Direct->Green field. @hideinitializer
+#define PictFormatGreen (1 << 5)
+/// Include Direct->GreenMask field. @hideinitializer
 #define PictFormatGreenMask (1 << 6)
-#define PictFormatBlue	    (1 << 7)
-#define PictFormatBlueMask  (1 << 8)
-#define PictFormatAlpha	    (1 << 9)
+/// Include Direct->Blue field. @hideinitializer
+#define PictFormatBlue (1 << 7)
+/// Include Direct->BlueMask field. @hideinitializer
+#define PictFormatBlueMask (1 << 8)
+/// Include Direct->Alpha field. @hideinitializer
+#define PictFormatAlpha (1 << 9)
+/// Include Direct->AlphaMask field. @hideinitializer
 #define PictFormatAlphaMask (1 << 10)
-#define PictFormatColormap  (1 << 11)
 
+/// Include Colormap field. @hideinitializer
+#define PictFormatColormap (1 << 11)
+/// @}
+
+/**
+ * Picture rendering attributes.
+ */
 typedef struct _XRenderPictureAttributes {
-    int 		repeat;
-    Picture		alpha_map;
-    int			alpha_x_origin;
-    int			alpha_y_origin;
-    int			clip_x_origin;
-    int			clip_y_origin;
-    Pixmap		clip_mask;
-    Bool		graphics_exposures;
-    int			subwindow_mode;
-    int			poly_edge;
-    int			poly_mode;
-    Atom		dither;
-    Bool		component_alpha;
+    /// How to repeat the picture.
+    int repeat;
+
+    /// A replacement alpha-map. Must be a pixmap-containing Picture.
+    Picture alpha_map;
+    /// Horizontal displacement of the replacement alpha-map.
+    int alpha_x_origin;
+    /// Vertical displacement of the replacement alpha-map.
+    int alpha_y_origin;
+
+    /// Horizontal displacement of the clip mask.
+    int clip_x_origin;
+    /// Vertical displacement of the clip mask.
+    int clip_y_origin;
+    /// A r/w restriction to the drawable.
+    Pixmap clip_mask;
+
+    /// Whether to receive GraphicsExpose events. @note Ignored field.
+    Bool graphics_exposures;
+    /// How to clip pixels on subwindow overlap.
+    int subwindow_mode;
+    /// Alpha mask generation mode.
+    int poly_edge;
+    /// Alpha value rasterization mode.
+    int poly_mode;
+    /// Dithering mode. @note Ignored field.
+    Atom dither;
+    /// Treat alpha channels independently.
+    Bool component_alpha;
 } XRenderPictureAttributes;
 
+/** An alpha-blended color with premultiplied components.
+ *
+ *  Values are in the range from 0 to 65535 inclusive, scaled down to the right
+ *  hardware values by the server. Colors must be premultiplied by alpha by the
+ *  client in all cases but gradient operations.
+ */
 typedef struct {
-    unsigned short   red;
-    unsigned short   green;
-    unsigned short   blue;
-    unsigned short   alpha;
+    /// Red color channel.
+    unsigned short red;
+    /// Green color channel.
+    unsigned short green;
+    /// Blue color channel.
+    unsigned short blue;
+    /// Alpha color channel.
+    unsigned short alpha;
 } XRenderColor;
 
+/**
+ * Glyph positioning and sizing information.
+ *
+ * A glyph is positioned by taking the requested position and substracting the
+ * center offset.
+ */
 typedef struct _XGlyphInfo {
-    unsigned short  width;
-    unsigned short  height;
-    short	    x;
-    short	    y;
-    short	    xOff;
-    short	    yOff;
+    /// Glyph width.
+    unsigned short width;
+    /// Glyph height.
+    unsigned short height;
+
+    /// Horizontal Glyph center offset relative to the upper-left corner.
+    short x;
+    /// Vertical Glyph center offset relative to the upper-left corner.
+    short y;
+
+    /// Horizontal margin to the next Glyph.
+    short xOff;
+    /// Vertical margin to the next Glyph.
+    short yOff;
 } XGlyphInfo;
 
+/*< Glyph Elements.
+ *  Group of glyphs to be rendered.
+ *  While selecting the right element type, you should use as a reference the
+ *  largest identifier in Elt->glyphset.
+ */
+/// @{
+
+/**
+ * 8-bit Glyph Element.
+ */
 typedef struct _XGlyphElt8 {
-    GlyphSet		    glyphset;
-    _Xconst char	    *chars;
-    int			    nchars;
-    int			    xOff;
-    int			    yOff;
+    /// Set of available glyphs.
+    GlyphSet glyphset;
+
+    /// 8-bit glyph id array.
+    _Xconst char *chars;
+    /// Glyph array size.
+    int nchars;
+
+    /// Horizontal offset.
+    int xOff;
+    /// Vertical offset.
+    int yOff;
 } XGlyphElt8;
 
+/**
+ * 16-bit Glyph Element.
+ */
 typedef struct _XGlyphElt16 {
-    GlyphSet		    glyphset;
-    _Xconst unsigned short  *chars;
-    int			    nchars;
-    int			    xOff;
-    int			    yOff;
+    /// Set of available glyphs.
+    GlyphSet glyphset;
+
+    /// 16-bit glyph id array.
+    _Xconst unsigned short *chars;
+    /// Glyph array size.
+    int nchars;
+
+    /// Horizontal offset.
+    int xOff;
+    /// Vertical offset.
+    int yOff;
 } XGlyphElt16;
 
+/**
+ * 32-bit Glyph Element.
+ */
 typedef struct _XGlyphElt32 {
-    GlyphSet		    glyphset;
-    _Xconst unsigned int    *chars;
-    int			    nchars;
-    int			    xOff;
-    int			    yOff;
+    /// Set of available glyphs.
+    GlyphSet glyphset;
+
+    /// 32-bit glyph id array.
+    _Xconst unsigned int *chars;
+    /// Glyph array size.
+    int nchars;
+
+    /// Horizontal offset.
+    int xOff;
+    /// Vertical offset.
+    int yOff;
 } XGlyphElt32;
+///@}
 
-typedef double	XDouble;
-
-typedef struct _XPointDouble {
-    XDouble  x, y;
-} XPointDouble;
+/*< Utility number types.
+ *
+ */
+///@{
 
-#define XDoubleToFixed(f)    ((XFixed) ((f) * 65536))
-#define XFixedToDouble(f)    (((XDouble) (f)) / 65536)
+/**
+ * Floating-point number.
+ */
+typedef double XDouble;
 
+/**
+ * Fixed-point number.
+ */
 typedef int XFixed;
 
+/// Turn XDouble into XFixed. @hideinitializer
+#define XDoubleToFixed(f) ((XFixed)((f)*65536))
+/// Turn XFixed into XDouble. @hideinitializer
+#define XFixedToDouble(f) (((XDouble)(f)) / 65536)
+/// @}
+
+/**
+ * Point coordinates stored as floats.
+ */
+typedef struct _XPointDouble {
+    XDouble x, y;
+} XPointDouble;
+
+/**
+ * Point coordinates as integers.
+ */
 typedef struct _XPointFixed {
-    XFixed  x, y;
+    XFixed x, y;
 } XPointFixed;
 
+/**
+ * Line described by two points.
+ */
 typedef struct _XLineFixed {
-    XPointFixed	p1, p2;
+    XPointFixed p1, p2;
 } XLineFixed;
 
+/**
+ * Triangle described by it's vertices.
+ * @see XTrap
+ */
 typedef struct _XTriangle {
-    XPointFixed	p1, p2, p3;
+    XPointFixed p1, p2, p3;
 } XTriangle;
 
+/**
+ * Circle described by it's center point and a radius.
+ */
 typedef struct _XCircle {
     XFixed x;
     XFixed y;
     XFixed radius;
 } XCircle;
 
+/** A trapezoid.
+ *
+ *  @deprecated Use XTrap instead
+ *  @see
+ *    * XTriangle
+ *    * XTrap
+ */
 typedef struct _XTrapezoid {
-    XFixed  top, bottom;
-    XLineFixed	left, right;
+    XFixed top, bottom;
+    XLineFixed left, right;
 } XTrapezoid;
 
+/**
+ * A transform matrix.
+ */
 typedef struct _XTransform {
-    XFixed  matrix[3][3];
+    XFixed matrix[3][3];
 } XTransform;
 
+/**
+ * Group filters and filter aliases.
+ */
 typedef struct _XFilters {
-    int	    nfilter;
-    char    **filter;
-    int	    nalias;
-    short   *alias;
+    /// Filter names count.
+    int nfilter;
+    /// Filter names array.
+    char **filter;
+    /// Aliases array count.
+    int nalias;
+    /// Array of «Index in .filter of the aliased filter or 0xffff».
+    short *alias;
 } XFilters;
 
+/**
+ * The value of an indexed color.
+ */
 typedef struct _XIndexValue {
-    unsigned long    pixel;
-    unsigned short   red, green, blue, alpha;
+    /// Index ID.
+    unsigned long pixel;
+    /// Color components.
+    unsigned short red, green, blue, alpha;
 } XIndexValue;
 
+/**
+ * A single cursor frame.
+ */
 typedef struct _XAnimCursor {
-    Cursor	    cursor;
-    unsigned long   delay;
+    /// Existing cursor.
+    Cursor cursor;
+    /// Animation delay.
+    unsigned long delay;
 } XAnimCursor;
 
+/**
+ * An horizontal line.
+ */
 typedef struct _XSpanFix {
-    XFixed	    left, right, y;
+    XFixed left, right, y;
 } XSpanFix;
 
+/**
+ * A trapezoid defined by two lines.
+ * @see XTriangle
+ */
 typedef struct _XTrap {
-    XSpanFix	    top, bottom;
+    XSpanFix top, bottom;
 } XTrap;
 
+/**
+ * Linear gradient shape.
+ */
 typedef struct _XLinearGradient {
     XPointFixed p1;
     XPointFixed p2;
 } XLinearGradient;
 
+/**
+ * Radial gradient shape.
+ */
 typedef struct _XRadialGradient {
     XCircle inner;
     XCircle outer;
 } XRadialGradient;
 
+/**
+ * Conical gradient shape.
+ */
 typedef struct _XConicalGradient {
     XPointFixed center;
     XFixed angle; /* in degrees */
@@ -200,328 +419,639 @@ typedef struct _XConicalGradient {
 
 _XFUNCPROTOBEGIN
 
-Bool XRenderQueryExtension (Display *dpy, int *event_basep, int *error_basep);
-
-Status XRenderQueryVersion (Display *dpy,
-			    int     *major_versionp,
-			    int     *minor_versionp);
-
-Status XRenderQueryFormats (Display *dpy);
-
-int XRenderQuerySubpixelOrder (Display *dpy, int screen);
-
-Bool XRenderSetSubpixelOrder (Display *dpy, int screen, int subpixel);
-
-XRenderPictFormat *
-XRenderFindVisualFormat (Display *dpy, _Xconst Visual *visual);
-
-XRenderPictFormat *
-XRenderFindFormat (Display			*dpy,
-		   unsigned long		mask,
-		   _Xconst XRenderPictFormat	*templ,
-		   int				count);
-
-#define PictStandardARGB32  0
-#define PictStandardRGB24   1
-#define PictStandardA8	    2
-#define PictStandardA4	    3
-#define PictStandardA1	    4
-#define PictStandardNUM	    5
-
-XRenderPictFormat *
-XRenderFindStandardFormat (Display		*dpy,
-			   int			format);
-
-XIndexValue *
-XRenderQueryPictIndexValues(Display			*dpy,
-			    _Xconst XRenderPictFormat	*format,
-			    int				*num);
-
-Picture
-XRenderCreatePicture (Display				*dpy,
-		      Drawable				drawable,
-		      _Xconst XRenderPictFormat		*format,
-		      unsigned long			valuemask,
-		      _Xconst XRenderPictureAttributes	*attributes);
-
-void
-XRenderChangePicture (Display				*dpy,
-		      Picture				picture,
-		      unsigned long			valuemask,
-		      _Xconst XRenderPictureAttributes  *attributes);
-
-void
-XRenderSetPictureClipRectangles (Display	    *dpy,
-				 Picture	    picture,
-				 int		    xOrigin,
-				 int		    yOrigin,
-				 _Xconst XRectangle *rects,
-				 int		    n);
-
-void
-XRenderSetPictureClipRegion (Display	    *dpy,
-			     Picture	    picture,
-			     Region	    r);
-
-void
-XRenderSetPictureTransform (Display	    *dpy,
-			    Picture	    picture,
-			    XTransform	    *transform);
-
-void
-XRenderFreePicture (Display                   *dpy,
-		    Picture                   picture);
-
-void
-XRenderComposite (Display   *dpy,
-		  int	    op,
-		  Picture   src,
-		  Picture   mask,
-		  Picture   dst,
-		  int	    src_x,
-		  int	    src_y,
-		  int	    mask_x,
-		  int	    mask_y,
-		  int	    dst_x,
-		  int	    dst_y,
-		  unsigned int	width,
-		  unsigned int	height);
-
-GlyphSet
-XRenderCreateGlyphSet (Display *dpy, _Xconst XRenderPictFormat *format);
-
-GlyphSet
-XRenderReferenceGlyphSet (Display *dpy, GlyphSet existing);
-
-void
-XRenderFreeGlyphSet (Display *dpy, GlyphSet glyphset);
-
-void
-XRenderAddGlyphs (Display		*dpy,
-		  GlyphSet		glyphset,
-		  _Xconst Glyph		*gids,
-		  _Xconst XGlyphInfo	*glyphs,
-		  int			nglyphs,
-		  _Xconst char		*images,
-		  int			nbyte_images);
-
-void
-XRenderFreeGlyphs (Display	    *dpy,
-		   GlyphSet	    glyphset,
-		   _Xconst Glyph    *gids,
-		   int		    nglyphs);
-
-void
-XRenderCompositeString8 (Display		    *dpy,
-			 int			    op,
-			 Picture		    src,
-			 Picture		    dst,
-			 _Xconst XRenderPictFormat  *maskFormat,
-			 GlyphSet		    glyphset,
-			 int			    xSrc,
-			 int			    ySrc,
-			 int			    xDst,
-			 int			    yDst,
-			 _Xconst char		    *string,
-			 int			    nchar);
-
-void
-XRenderCompositeString16 (Display		    *dpy,
-			  int			    op,
-			  Picture		    src,
-			  Picture		    dst,
-			  _Xconst XRenderPictFormat *maskFormat,
-			  GlyphSet		    glyphset,
-			  int			    xSrc,
-			  int			    ySrc,
-			  int			    xDst,
-			  int			    yDst,
-			  _Xconst unsigned short    *string,
-			  int			    nchar);
-
-void
-XRenderCompositeString32 (Display		    *dpy,
-			  int			    op,
-			  Picture		    src,
-			  Picture		    dst,
-			  _Xconst XRenderPictFormat *maskFormat,
-			  GlyphSet		    glyphset,
-			  int			    xSrc,
-			  int			    ySrc,
-			  int			    xDst,
-			  int			    yDst,
-			  _Xconst unsigned int	    *string,
-			  int			    nchar);
-
-void
-XRenderCompositeText8 (Display			    *dpy,
-		       int			    op,
-		       Picture			    src,
-		       Picture			    dst,
-		       _Xconst XRenderPictFormat    *maskFormat,
-		       int			    xSrc,
-		       int			    ySrc,
-		       int			    xDst,
-		       int			    yDst,
-		       _Xconst XGlyphElt8	    *elts,
-		       int			    nelt);
-
-void
-XRenderCompositeText16 (Display			    *dpy,
-			int			    op,
-			Picture			    src,
-			Picture			    dst,
-			_Xconst XRenderPictFormat   *maskFormat,
-			int			    xSrc,
-			int			    ySrc,
-			int			    xDst,
-			int			    yDst,
-			_Xconst XGlyphElt16	    *elts,
-			int			    nelt);
-
-void
-XRenderCompositeText32 (Display			    *dpy,
-			int			    op,
-			Picture			    src,
-			Picture			    dst,
-			_Xconst XRenderPictFormat   *maskFormat,
-			int			    xSrc,
-			int			    ySrc,
-			int			    xDst,
-			int			    yDst,
-			_Xconst XGlyphElt32	    *elts,
-			int			    nelt);
-
-void
-XRenderFillRectangle (Display		    *dpy,
-		      int		    op,
-		      Picture		    dst,
-		      _Xconst XRenderColor  *color,
-		      int		    x,
-		      int		    y,
-		      unsigned int	    width,
-		      unsigned int	    height);
-
-void
-XRenderFillRectangles (Display		    *dpy,
-		       int		    op,
-		       Picture		    dst,
-		       _Xconst XRenderColor *color,
-		       _Xconst XRectangle   *rectangles,
-		       int		    n_rects);
-
-void
-XRenderCompositeTrapezoids (Display		*dpy,
-			    int			op,
-			    Picture		src,
-			    Picture		dst,
-			    _Xconst XRenderPictFormat	*maskFormat,
-			    int			xSrc,
-			    int			ySrc,
-			    _Xconst XTrapezoid	*traps,
-			    int			ntrap);
-
-void
-XRenderCompositeTriangles (Display		*dpy,
-			   int			op,
-			   Picture		src,
-			   Picture		dst,
-			    _Xconst XRenderPictFormat	*maskFormat,
-			   int			xSrc,
-			   int			ySrc,
-			   _Xconst XTriangle	*triangles,
-			   int			ntriangle);
-
-void
-XRenderCompositeTriStrip (Display		*dpy,
-			  int			op,
-			  Picture		src,
-			  Picture		dst,
-			    _Xconst XRenderPictFormat	*maskFormat,
-			  int			xSrc,
-			  int			ySrc,
-			  _Xconst XPointFixed	*points,
-			  int			npoint);
-
-void
-XRenderCompositeTriFan (Display			*dpy,
-			int			op,
-			Picture			src,
-			Picture			dst,
-			_Xconst XRenderPictFormat	*maskFormat,
-			int			xSrc,
-			int			ySrc,
-			_Xconst XPointFixed	*points,
-			int			npoint);
-
-void
-XRenderCompositeDoublePoly (Display		    *dpy,
-			    int			    op,
-			    Picture		    src,
-			    Picture		    dst,
-			    _Xconst XRenderPictFormat	*maskFormat,
-			    int			    xSrc,
-			    int			    ySrc,
-			    int			    xDst,
-			    int			    yDst,
-			    _Xconst XPointDouble    *fpoints,
-			    int			    npoints,
-			    int			    winding);
-Status
-XRenderParseColor(Display	*dpy,
-		  char		*spec,
-		  XRenderColor	*def);
-
-Cursor
-XRenderCreateCursor (Display	    *dpy,
-		     Picture	    source,
-		     unsigned int   x,
-		     unsigned int   y);
-
-XFilters *
-XRenderQueryFilters (Display *dpy, Drawable drawable);
-
-void
-XRenderSetPictureFilter (Display    *dpy,
-			 Picture    picture,
-			 const char *filter,
-			 XFixed	    *params,
-			 int	    nparams);
-
-Cursor
-XRenderCreateAnimCursor (Display	*dpy,
-			 int		ncursor,
-			 XAnimCursor	*cursors);
-
-
-void
-XRenderAddTraps (Display	    *dpy,
-		 Picture	    picture,
-		 int		    xOff,
-		 int		    yOff,
-		 _Xconst XTrap	    *traps,
-		 int		    ntrap);
-
-Picture XRenderCreateSolidFill (Display *dpy,
-                                const XRenderColor *color);
-
-Picture XRenderCreateLinearGradient (Display *dpy,
-                                     const XLinearGradient *gradient,
-                                     const XFixed *stops,
-                                     const XRenderColor *colors,
-                                     int nstops);
+/** @defgroup queries Early check queries.
+ * @{
+ */
+
+/**
+ * Ask for the Render extension presence and its base numbers.
+ *
+ * @param dpy Connection to the X server.
+ * @param[out] event_basep first event number for the extension.
+ * @param[out] error_basep first error number for the extension.
+ * @return True if Render is present.
+ */
+Bool XRenderQueryExtension(Display *dpy, int *event_basep, int *error_basep);
+
+/**
+ * Ask for the extension version.
+ *
+ * @param dpy Connection to the X server.
+ * @param[out] major_versionp Extension's major version.
+ * @param[out] minor_versionp Extension's major version.
+ * @return Status «1» on success.
+ */
+Status XRenderQueryVersion(Display *dpy, int *major_versionp,
+                           int *minor_versionp);
+
+/**
+ * Check for and cache compatible picture formats.
+ *
+ * @param dpy Connection to the X server.
+ * @return Status «1» on success.
+ */
+Status XRenderQueryFormats(Display *dpy);
+
+/**
+ * Ask for the current subpixel order of a screen.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] screen Target screen number.
+ * @return SubPixelUnknown on error, else a subpixel order.
+ */
+int XRenderQuerySubpixelOrder(Display *dpy, int screen);
+
+/**
+ * Change the subpixel order of a screen.
+ *
+ * @param dpy Connection to the X server
+ * @param[in] screen Target screen number.
+ * @param[in] subpixel Requested subpixel order.
+ * @return True if the operation was successful.
+ */
+Bool XRenderSetSubpixelOrder(Display *dpy, int screen, int subpixel);
+/// @}
+
+/**
+ * Ask for the Picture format for a Visual.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] visual Reference Visual object.
+ * @return The requested Picture format.
+ */
+XRenderPictFormat *XRenderFindVisualFormat(Display *dpy,
+                                           _Xconst Visual *visual);
+
+/**
+ * Ask for matching Picture formats from a template.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] mask `templ` fields mask to use.
+ * @param[in] templ Requested Picture format template.
+ * @param[in] count Skip `count` formats.
+ * @return NULL if no matching format found, else a Picture format.
+ */
+XRenderPictFormat *XRenderFindFormat(Display *dpy, unsigned long mask,
+                                     _Xconst XRenderPictFormat *templ,
+                                     int count);
+
+/** Standard format specifiers.
+ * @{
+ */
+/// 8-bit RGB with Alpha. @hideinitializer
+#define PictStandardARGB32 0
+/// 8-bit RGB. @hideinitializer
+#define PictStandardRGB24 1
+/// 8-bit Alpha map. @hideinitializer
+#define PictStandardA8 2
+/// 4-bit Alpha map. @hideinitializer
+#define PictStandardA4 3
+/// 1-bit Alpha map. @hideinitializer
+#define PictStandardA1 4
+/// Supported standard formats count. @hideinitializer
+#define PictStandardNUM 5
+/// @}
+
+/**
+ * Ask for a predefined standard picture format.
+ *
+ * This is a shorthand to XRenderFindFormat for finding common formats.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] format Desired format specifier.
+ * @return NULL if no matching format found, else a Picture format.
+ */
+XRenderPictFormat *XRenderFindStandardFormat(Display *dpy, int format);
+
+/**
+ * Ask for the indexed colors of a Picture format.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] format Queried picture format.
+ * @param[out] num Size of the output array.
+ * @return An array of XIndexValue.
+ */
+XIndexValue *XRenderQueryPictIndexValues(Display *dpy,
+                                         _Xconst XRenderPictFormat *format,
+                                         int *num);
+
+/**
+ * Creates a Picture for a drawable.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] drawable Target Drawable.
+ * @param[in] format Format for the Picture.
+ * @param[in] valuemask `attributes` fields mask to use.
+ * @param[in] attributes Desired attributes for the Picture.
+ * @return A Picture tied to the drawable.
+ */
+Picture XRenderCreatePicture(Display *dpy, Drawable drawable,
+                             _Xconst XRenderPictFormat *format,
+                             unsigned long valuemask,
+                             _Xconst XRenderPictureAttributes *attributes);
+
+/**
+ * Free allocated structures for a Picture.
+ *
+ * @warning A freed Picture shouldn't be used again.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] picture Target Picture.
+ */
+void XRenderFreePicture(Display *dpy, Picture picture);
+
+/**
+ * Change a Picture's attributes structure.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] picture Target Picture.
+ * @param[in] valuemask `attributes` fields mask to use.
+ * @param[in] attributes Desired attributes for the Picture.
+ */
+void XRenderChangePicture(Display *dpy, Picture picture,
+                          unsigned long valuemask,
+                          _Xconst XRenderPictureAttributes *attributes);
+
+/**
+ * Change a Picture's clip mask to the specified rectangles.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] picture Target Picture.
+ * @param[in] xOrigin Horizontal mask origin.
+ * @param[in] yOrigin Vertical mask origin.
+ * @param[in] rects Array of rectangles to clip with.
+ * @param[in] n `rects` array size.
+ */
+void XRenderSetPictureClipRectangles(Display *dpy, Picture picture, int xOrigin,
+                                     int yOrigin, _Xconst XRectangle *rects,
+                                     int n);
+
+/**
+ * Change a Picture's clip mask to the specified Region.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] picture Target Picture.
+ * @param[in] r Region to clip with.
+ */
+void XRenderSetPictureClipRegion(Display *dpy, Picture picture, Region r);
+
+/**
+ * Change a Picture's Transform matrix.
+ *
+ * @param dpy Connection to the X server
+ * @param[in] picture Target Picture.
+ * @param[in] transform Transform matrix to use.
+ */
+void XRenderSetPictureTransform(Display *dpy, Picture picture,
+                                XTransform *transform);
+
+/**
+ * Combines two Pictures with the specified compositing operation.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] mask Composition mask.
+ * @param[in] dst Picture to combine into.
+ * @param[in] src_x Horizontal `src` origin offset.
+ * @param[in] src_y Vertical `src` origin offset
+ * @param[in] mask_x Horizontal `mask` origin offset.
+ * @param[in] mask_y Vertical `mask` origin offset.
+ * @param[in] dst_x Horizontal `dst` origin offset.
+ * @param[in] dst_y Vertical `dst` origin offset.
+ * @param[in] width Maximum composition width.
+ * @param[in] height Maximum composition height.
+ */
+void XRenderComposite(Display *dpy, int op, Picture src, Picture mask,
+                      Picture dst, int src_x, int src_y, int mask_x, int mask_y,
+                      int dst_x, int dst_y, unsigned int width,
+                      unsigned int height);
+
+/**
+ * Create a Glyph Set.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] format Desired format for the Glyphs Picture.
+ * @return A GlyphSet.
+ */
+GlyphSet XRenderCreateGlyphSet(Display *dpy, _Xconst XRenderPictFormat *format);
+
+/**
+ * Generate a new reference for an existing Glyph Set.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] existing Target Glyph Set.
+ * @return A GlyphSet identical to `existing`.
+ */
+GlyphSet XRenderReferenceGlyphSet(Display *dpy, GlyphSet existing);
+
+/**
+ * Free allocated structures for a GlyphSet.
+ *
+ * If there's more references to the underlying GlyphSet structures, this will
+ * remove only the specified GlyphSet reference.
+ *
+ * @warning A freed GlyphSet shouldn't be used again.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] glyphset Target GlyphSet.
+ */
+void XRenderFreeGlyphSet(Display *dpy, GlyphSet glyphset);
+
+/**
+ * Add new Glyphs to a GlyphSet.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] glyphset Glyph storage destination.
+ * @param[in] gids Array of ids for the new Glyphs.
+ * @param[in] glyphs Array of new Glyphs info.
+ * @param[in] nglyphs Number of Glyphs to add.
+ * @param[in] images Byte array containing the Glyphs graphics.
+ * @param[in] nbyte_images Size of the `images` byte array.
+ */
+void XRenderAddGlyphs(Display *dpy, GlyphSet glyphset, _Xconst Glyph *gids,
+                      _Xconst XGlyphInfo *glyphs, int nglyphs,
+                      _Xconst char *images, int nbyte_images);
+
+/**
+ * Free allocated Glyphs.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] glyphset GlyphSet storing the Glyphs.
+ * @param[in] gids Identifier array of the Glyphs to dellocate.
+ * @param[in] nglyphs Glyph count.
+ */
+void XRenderFreeGlyphs(Display *dpy, GlyphSet glyphset, _Xconst Glyph *gids,
+                       int nglyphs);
+
+/**
+ * Draw a 8-bit character string into a Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] glyphset Glyph Source.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] xDst Horizontal `dst` origin offset.
+ * @param[in] yDst Vertical `dst` origin offset.
+ * @param[in] string String to clip to.
+ * @param[in] nchar String length.
+ */
+void XRenderCompositeString8(Display *dpy, int op, Picture src, Picture dst,
+                             _Xconst XRenderPictFormat *maskFormat,
+                             GlyphSet glyphset, int xSrc, int ySrc, int xDst,
+                             int yDst, _Xconst char *string, int nchar);
+
+/**
+ * Draw a 16-bit character string into a Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] glyphset Glyph Source.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] xDst Horizontal `dst` origin offset.
+ * @param[in] yDst Vertical `dst` origin offset.
+ * @param[in] string String to clip to.
+ * @param[in] nchar String length.
+ */
+void XRenderCompositeString16(Display *dpy, int op, Picture src, Picture dst,
+                              _Xconst XRenderPictFormat *maskFormat,
+                              GlyphSet glyphset, int xSrc, int ySrc, int xDst,
+                              int yDst, _Xconst unsigned short *string,
+                              int nchar);
+
+/**
+ * Draw a 32-bit character string into a Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] glyphset Glyph Source.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] xDst Horizontal `dst` origin offset.
+ * @param[in] yDst Vertical `dst` origin offset.
+ * @param[in] string String to clip to.
+ * @param[in] nchar String length.
+ */
+void XRenderCompositeString32(Display *dpy, int op, Picture src, Picture dst,
+                              _Xconst XRenderPictFormat *maskFormat,
+                              GlyphSet glyphset, int xSrc, int ySrc, int xDst,
+                              int yDst, _Xconst unsigned int *string,
+                              int nchar);
+
+/**
+ * Draw several 8-bit Glyph Elements into a Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] xDst Horizontal `dst` origin offset.
+ * @param[in] yDst Vertical `dst` origin offset.
+ * @param[in] elts Glyph Elements array to clip with.
+ * @param[in] nelt Glyph Elements array size.
+ */
+void XRenderCompositeText8(Display *dpy, int op, Picture src, Picture dst,
+                           _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                           int ySrc, int xDst, int yDst,
+                           _Xconst XGlyphElt8 *elts, int nelt);
+
+/**
+ * Draw several 16-bit Glyph Elements into a Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] xDst Horizontal `dst` origin offset.
+ * @param[in] yDst Vertical `dst` origin offset.
+ * @param[in] elts Glyph Elements array to clip with.
+ * @param[in] nelt Glyph Elements array size.
+ */
+void XRenderCompositeText16(Display *dpy, int op, Picture src, Picture dst,
+                            _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                            int ySrc, int xDst, int yDst,
+                            _Xconst XGlyphElt16 *elts, int nelt);
+
+/**
+ * Draw several 32-bit Glyph Elements into a Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] xDst Horizontal `dst` origin offset.
+ * @param[in] yDst Vertical `dst` origin offset.
+ * @param[in] elts Glyph Elements to clip with.
+ * @param[in] nelt Glyph Elements array size.
+ */
+void XRenderCompositeText32(Display *dpy, int op, Picture src, Picture dst,
+                            _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                            int ySrc, int xDst, int yDst,
+                            _Xconst XGlyphElt32 *elts, int nelt);
+
+/**
+ * Fill a Rectangle with the given color.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] dst Picture to draw into.
+ * @param[in] color Color to fill with.
+ * @param[in] x Horizontal offset.
+ * @param[in] y Vertical offset.
+ * @param[in] width Rectangle width.
+ * @param[in] height Rectangle height.
+ */
+void XRenderFillRectangle(Display *dpy, int op, Picture dst,
+                          _Xconst XRenderColor *color, int x, int y,
+                          unsigned int width, unsigned int height);
 
-Picture XRenderCreateRadialGradient (Display *dpy,
-                                     const XRadialGradient *gradient,
+/**
+ * Fill a bunch of Rectangle with the given color.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] dst Picture to draw into.
+ * @param[in] color Color to fill with.
+ * @param[in] rectangles Array of Rectangles to fill.
+ * @param[in] n_rects `rectangles` array size.
+ */
+void XRenderFillRectangles(Display *dpy, int op, Picture dst,
+                           _Xconst XRenderColor *color,
+                           _Xconst XRectangle *rectangles, int n_rects);
+
+/**
+ * Combine two Pictures using a bunch of Trapezoids as the mask.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] traps Array of Trapezoids to clip with.
+ * @param[in] ntrap `traps` Array size.
+ */
+void XRenderCompositeTrapezoids(Display *dpy, int op, Picture src, Picture dst,
+                                _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                                int ySrc, _Xconst XTrapezoid *traps, int ntrap);
+
+/**
+ * Combine two Pictures using a bunch of Triangles as the mask.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] triangles Array of Triangles to clip with.
+ * @param[in] ntriangle `triangles` array size.
+ */
+void XRenderCompositeTriangles(Display *dpy, int op, Picture src, Picture dst,
+                               _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                               int ySrc, _Xconst XTriangle *triangles,
+                               int ntriangle);
+
+/**
+ * Combine two Pictures using a Triangle Strip as the mask.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] points Array of Points to create Triangles with.
+ * @param[in] npoint `points` array size.
+ */
+void XRenderCompositeTriStrip(Display *dpy, int op, Picture src, Picture dst,
+                              _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                              int ySrc, _Xconst XPointFixed *points,
+                              int npoint);
+
+/**
+ * Combine two Pictures using a Triangle Fan as the mask.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] points Array of Points to create Triangles with.
+ * @param[in] npoint `points` array size.
+ */
+void XRenderCompositeTriFan(Display *dpy, int op, Picture src, Picture dst,
+                            _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                            int ySrc, _Xconst XPointFixed *points, int npoint);
+
+/**
+ * Combine two Pictures using a Polygon as the mask.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] op Compositing operation to perform.
+ * @param[in] src Picture to combine with.
+ * @param[in] dst Picture to combine into.
+ * @param[in] maskFormat Picture format of the generated Picture mask.
+ * @param[in] xSrc Horizontal `src` origin offset.
+ * @param[in] ySrc Vertical `src` origin offset.
+ * @param[in] xDst Horizontal `dst` origin offset.
+ * @param[in] yDst Vertical `dst` origin offset.
+ * @param[in] fpoints Array of DoublePoints to create a Polygon with.
+ * @param[in] npoints `points` array size.
+ * @param winding Unused.
+ */
+void XRenderCompositeDoublePoly(Display *dpy, int op, Picture src, Picture dst,
+                                _Xconst XRenderPictFormat *maskFormat, int xSrc,
+                                int ySrc, int xDst, int yDst,
+                                _Xconst XPointDouble *fpoints, int npoints,
+                                int winding);
+
+/**
+ * Parse a color string.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] spec Null-terminated string.
+ * @param[out] def Parsing result.
+ * @return Status «1» on success.
+ */
+Status XRenderParseColor(Display *dpy, char *spec, XRenderColor *def);
+
+/**
+ * Creates a cursor looking like a Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] source Picture defining the cursor look.
+ * @param[in] x Horizontal offset.
+ * @param[in] y Vertical offset.
+ * @return A Cursor.
+ */
+Cursor XRenderCreateCursor(Display *dpy, Picture source, unsigned int x,
+                           unsigned int y);
+
+/**
+ * Ask for Filters applicable to some Drawable.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] drawable Target Drawable.
+ * @return Available Filters and Aliases.
+ */
+XFilters *XRenderQueryFilters(Display *dpy, Drawable drawable);
+
+/**
+ * Set the current filter of a Picture.
+ *
+ * @note On Picture creation, the «Nearest» filter is set by default.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] picture Target.
+ * @param[in] filter Filter name.
+ * @param[in] params Filter parameters array.
+ * @param[in] nparams `params` array size.
+ */
+void XRenderSetPictureFilter(Display *dpy, Picture picture, const char *filter,
+                             XFixed *params, int nparams);
+
+/**
+ * Create an animated Cursor from the given Cursor frames.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] ncursor Cursor frames count.
+ * @param[in] cursors Cursor frames array.
+ * @return An animated Cursor.
+ */
+Cursor XRenderCreateAnimCursor(Display *dpy, int ncursor, XAnimCursor *cursors);
+
+/**
+ * Add the given Trapezoids to a single-channel Picture.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] picture An alpha-only Picture.
+ * @param[in] xOff Horizontal offset.
+ * @param[in] yOff Vertical offset.
+ * @param[in] traps Array of trapezoids.
+ * @param[in] ntrap `traps` array size.
+ */
+void XRenderAddTraps(Display *dpy, Picture picture, int xOff, int yOff,
+                     _Xconst XTrap *traps, int ntrap);
+
+/**
+ * Create a Picture filled with a single Color.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] color Desired filling.
+ * @return A single Color Picture.
+ */
+Picture XRenderCreateSolidFill(Display *dpy, const XRenderColor *color);
+
+/**
+ * Create a Picture filled with a Linear Gradient.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] gradient Gradient geometry.
+ * @param[in] stops Stop sections.
+ * @param[in] colors Stop colors.
+ * @param[in] nstops Stops count.
+ * @return A Picture filled with a Linear Gradient.
+ */
+Picture XRenderCreateLinearGradient(Display *dpy,
+                                    const XLinearGradient *gradient,
+                                    const XFixed *stops,
+                                    const XRenderColor *colors, int nstops);
+
+/**
+ * Create a Picture filled with a Radial Gradient.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] gradient Gradient geometry.
+ * @param[in] stops Stop sections.
+ * @param[in] colors Stop colors.
+ * @param[in] nstops Stops count.
+ * @return A Picture filled with a Radial Gradient.
+ */
+Picture XRenderCreateRadialGradient(Display *dpy,
+                                    const XRadialGradient *gradient,
+                                    const XFixed *stops,
+                                    const XRenderColor *colors, int nstops);
+
+/**
+ * Create a Picture filled with a Conical Gradient.
+ *
+ * @param dpy Connection to the X server.
+ * @param[in] gradient Gradient geometry.
+ * @param[in] stops Stop sections.
+ * @param[in] colors Stop colors.
+ * @param[in] nstops Stops count.
+ * @return A Picture filled with a Conical Gradient.
+ */
+Picture XRenderCreateConicalGradient(Display *dpy,
+                                     const XConicalGradient *gradient,
                                      const XFixed *stops,
-                                     const XRenderColor *colors,
-                                     int nstops);
-
-Picture XRenderCreateConicalGradient (Display *dpy,
-                                      const XConicalGradient *gradient,
-                                      const XFixed *stops,
-                                      const XRenderColor *colors,
-                                      int nstops);
+                                     const XRenderColor *colors, int nstops);
 
 _XFUNCPROTOEND