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In the process of making the stateless changes. All the changes are implemented in code but the process of updating this paper to represent that is ongoing. I decided to step away from it for a moment, so I just finished renaming compositing_operator to compositing_op. Planning to rename path_factory to path_builder next.
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‎source/compositing-operator.tex‎

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%!TEX root = io2d.tex
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\rSec0 [compositing.operator] {Enum class \tcode{compositing_operator}}
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\rSec0 [compositingop] {Enum class \tcode{compositing_op}}
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\rSec1 [compositing.operator.summary] {\tcode{compositing_operator}
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\rSec1 [compositingop.summary] {\tcode{compositing_op}
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Summary}
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\pnum
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The \tcode{compositing_operator} enum class specifies composition algorithms. See Table~\ref{tab:compositing.operator.meanings.basic},
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Table~\ref{tab:compositing.operator.meanings.blend} and
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Table~\ref{tab:compositing.operator.meanings.hsl} for the meaning of
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each \tcode{compositing_operator} enumerator.
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The \tcode{compositing_op} enum class specifies composition algorithms. See Table~\ref{tab:compositingop.meanings.basic},
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Table~\ref{tab:compositingop.meanings.blend} and
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Table~\ref{tab:compositingop.meanings.hsl} for the meaning of
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each \tcode{compositing_op} enumerator.
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\rSec1 [compositing.operator.synopsis] {\tcode{compositing_operator}
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\rSec1 [compositingop.synopsis] {\tcode{compositing_op}
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Synopsis}
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\begin{codeblock}
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namespace std { namespace experimental { namespace drawing { inline namespace
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v1 {
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enum class compositing_operator {
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enum class compositing_op {
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// basic
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over,
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clear,
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} } } }
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\end{codeblock}
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\rSec1 [compositing.operator.enumerators] {\tcode{compositing_operator}
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\rSec1 [compositingop.enumerators] {\tcode{compositing_op}
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Enumerators}
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\pnum
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The tables below specifies the mathematical formula for each enumerator's composition algorithm. The formulas differentiate between three color channels (red, green, and blue) and an alpha channel (transparency). For all channels, valid channel values are in the range $[0.0, 1.0]$.
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clip are not modified.
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\begin{libiotwodreqtab4b}
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{\tcode{compositing_operator} basic enumerator meanings}
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{tab:compositing.operator.meanings.basic}
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{\tcode{compositing_op} basic enumerator meanings}
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{tab:compositingop.meanings.basic}
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\\ \topline
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\lhdr{Enumerator}
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& \chdr{Bound}
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\pnum
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For the enumerators in
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Table~\ref{tab:compositing.operator.meanings.blend} and
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Table~\ref{tab:compositing.operator.meanings.hsl} the result color's
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Table~\ref{tab:compositingop.meanings.blend} and
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Table~\ref{tab:compositingop.meanings.hsl} the result color's
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alpha channel value formula is as follows: $Ra = Sa + Da \times (1 - Sa)$.
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\enternote
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Since it is the same formula for all enumerators in those tables, the formula
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All of the blend enumerators and hsl enumerators have a Bound value of 'N/A'.
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\begin{libreqtab2}
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{\tcode{compositing_operator} blend enumerator meanings}
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{tab:compositing.operator.meanings.blend}
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{\tcode{compositing_op} blend enumerator meanings}
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{tab:compositingop.meanings.blend}
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\\ \topline
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\lhdr{Enumerator}
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& \rhdr{Color}
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\exitnote
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\begin{libreqtab2}
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{\tcode{compositing_operator} hsl enumerator meanings}
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{tab:compositing.operator.meanings.hsl}
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{\tcode{compositing_op} hsl enumerator meanings}
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{tab:compositingop.meanings.hsl}
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\\ \topline
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\lhdr{Enumerator}
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& \rhdr{Color \& Alpha}

‎source/experimental-io2d.tex‎

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enum class fill_rule;
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enum class line_cap;
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enum class line_join;
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enum class compositing_operator;
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enum class compositing_op;
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enum class format;
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enum class tiling;
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enum class filter;

‎source/fill-props.tex‎

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%!TEX root = io2d.tex
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\rSec0 [fillprops] {Class \tcode{fill_props}}
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\rSec1 [fillprops.summary] {\tcode{fill_props} summary}
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\pnum
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FIXME

‎source/mask-props.tex‎

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%!TEX root = io2d.tex
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\rSec0 [maskprops] {Class \tcode{mask_props}}
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\rSec1 [maskprops.summary] {\tcode{mask_props} summary}
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\pnum
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FIXME

‎source/render-props.tex‎

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%!TEX root = io2d.tex
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\rSec0 [renderprops] {Class \tcode{render_props}}
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\rSec1 [renderprops.summary] {\tcode{render_props} summary}
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\pnum
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The \tcode{render_props} class provides general state information that is applicable to all rendering and composing operations (\ref{surface.render}).
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\pnum
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It has a Transformation Matrix of type \tcode{matrix_2d}, an Antialiasing Value of type \tcode{antialias}, and a Compositing Operator of type \tcode{compositing_op}.
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\rSec1 [renderprops.synopsis] {\tcode{render_props} synopsis}
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\begin{codeblock}
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namespace std { namespace experimental { namespace io2d { inline namespace v1 {
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class surface {
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public:
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constexpr render_props() noexcept;
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constexpr explicit render_props(const matrix_2d& m,
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experimental::io2d::antialias = experimental::io2d::good,
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experimental::io2d::compositing_op = experimental::io2d::compositing_op::over) noexcept;
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// \ref{surface.modifiers.state}, state modifiers:
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};
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}}}}
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\end{codeblock}

‎source/reqs.tex‎

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\pnum
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Certain requirements of this \documenttypename{} assume that \tcode{numeric_limits<double>::is_iec559} evaluates to \tcode{true}. The behavior of these requirements is \impldef{\tcode{numeric_limits<double>::is_iec559} evaluates to \tcode{false}} if \tcode{numeric_limits<double>::is_iec559} evaluates to \tcode{false}.
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\rSec1 [\iotwod.req.cstdintopttypes] {Exact width integer types}
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\pnum
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In order to implement this \documenttypename{}, the implementation shall provide the following optional integer types from the \tcode{<cstdint>} header file:
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\begin{itemize}
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\item \tcode{uint8_t}
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\item \tcode{uint16_t}
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\item \tcode{uint32_t}
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\item \tcode{uint64_t}
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\end{itemize}
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%\rSec1 [\iotwod.req.cstdintopttypes] {Exact width integer types}
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%
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%\pnum
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%In order to implement this \documenttypename{}, the implementation shall provide the following optional integer types from the \tcode{<cstdint>} header file:
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%\begin{itemize}
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% \item \tcode{uint8_t}
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% \item \tcode{uint16_t}
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% \item \tcode{uint32_t}
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% \item \tcode{uint64_t}
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%\end{itemize}

‎source/stroke-props.tex‎

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%!TEX root = io2d.tex
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\rSec0 [strokeprops] {Class \tcode{stroke_props}}
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\rSec1 [strokeprops.summary] {\tcode{stroke_props} summary}
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\pnum
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FIXME

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