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rename upstream-man-pages to upstream-doc
[clinton/guile-figl.git] / upstream-doc / manglsl / textureProjOffset.xml
diff --git a/upstream-doc/manglsl/textureProjOffset.xml b/upstream-doc/manglsl/textureProjOffset.xml
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+++ b/upstream-doc/manglsl/textureProjOffset.xml
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+<?xml version="1.0" encoding="UTF-8"?>\r
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"\r
+              "http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">\r
+<refentry id="textureProjOffsetOffset">\r
+    <refmeta>\r
+        <refmetainfo>\r
+            <copyright>\r
+                <year>2011</year>\r
+                <holder>Khronos Group</holder>\r
+            </copyright>\r
+        </refmetainfo>\r
+        <refentrytitle>textureProjOffset</refentrytitle>\r
+        <manvolnum>3G</manvolnum>\r
+    </refmeta>\r
+    <refnamediv>\r
+        <refname>textureProjOffset</refname>\r
+        <refpurpose>perform a texture lookup with projection and offset</refpurpose>\r
+    </refnamediv>\r
+    <refsynopsisdiv><title>Declaration</title>\r
+        <funcsynopsis>\r
+            <funcprototype>\r
+                <funcdef>gvec4 <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler1D <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec2 <parameter>P</parameter></paramdef>\r
+                <paramdef>int <parameter>offset</parameter></paramdef>\r
+                <paramdef>[float <parameter>bias</parameter>]</paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>gvec4 <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler1D <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec4 <parameter>P</parameter></paramdef>\r
+                <paramdef>int <parameter>offset</parameter></paramdef>\r
+                <paramdef>[float <parameter>bias</parameter>]</paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>gvec4 <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler2D <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec3 <parameter>P</parameter></paramdef>\r
+                <paramdef>ivec2 <parameter>offset</parameter></paramdef>\r
+                <paramdef>[float <parameter>bias</parameter>]</paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>gvec4 <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler2D <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec4 <parameter>P</parameter></paramdef>\r
+                <paramdef>ivec2 <parameter>offset</parameter></paramdef>\r
+                <paramdef>[float <parameter>bias</parameter>]</paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>gvec4 <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler3D <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec4 <parameter>P</parameter></paramdef>\r
+                <paramdef>ivec3 <parameter>offset</parameter></paramdef>\r
+                <paramdef>[float <parameter>bias</parameter>]</paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>float <function>textureProjOffset</function></funcdef>\r
+                <paramdef>sampler1DShadow <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec4 <parameter>P</parameter></paramdef>\r
+                <paramdef>int <parameter>offset</parameter></paramdef>\r
+                <paramdef>[float <parameter>bias</parameter>]</paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>float <function>textureProjOffset</function></funcdef>\r
+                <paramdef>sampler2DShadow <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec4 <parameter>P</parameter></paramdef>\r
+                <paramdef>ivec2 <parameter>offset</parameter></paramdef>\r
+                <paramdef>[float <parameter>bias</parameter>]</paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>gvec4 <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler2DRect <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec3 <parameter>P</parameter></paramdef>\r
+                <paramdef>ivec2 <parameter>offset</parameter></paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>gvec4 <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler2DRect <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec4 <parameter>P</parameter></paramdef>\r
+                <paramdef>ivec2 <parameter>offset</parameter></paramdef>\r
+            </funcprototype>\r
+            <funcprototype>\r
+                <funcdef>float <function>textureProjOffset</function></funcdef>\r
+                <paramdef>gsampler2DRectShadow <parameter>sampler</parameter></paramdef>\r
+                <paramdef>vec4 <parameter>P</parameter></paramdef>\r
+                <paramdef>ivec2 <parameter>offset</parameter></paramdef>\r
+            </funcprototype>\r
+        </funcsynopsis>\r
+    </refsynopsisdiv>\r
+    <refsect1 id="parameters"><title>Parameters</title>\r
+        <variablelist>\r
+        <varlistentry>\r
+            <term><parameter>sampler</parameter></term>\r
+            <listitem>\r
+                <para>\r
+                    Specifies the sampler to which the texture from which texels will be retrieved is bound.\r
+                </para>\r
+            </listitem>\r
+        </varlistentry>\r
+        <varlistentry>\r
+            <term><parameter>P</parameter></term>\r
+            <listitem>\r
+                <para>\r
+                    Specifies the texture coordinates at which the texture will be sampled.\r
+                </para>\r
+            </listitem>\r
+        </varlistentry>\r
+        <varlistentry>\r
+            <term><parameter>offset</parameter></term>\r
+            <listitem>\r
+                <para>\r
+                    Specifies the offset that is applied to <parameter>P</parameter> before sampling occurs.\r
+                </para>\r
+            </listitem>\r
+        </varlistentry>\r
+        <varlistentry>\r
+            <term><parameter>bias</parameter></term>\r
+            <listitem>\r
+                <para>\r
+                    Specifies an optional bias to be applied during level-of-detail computation.\r
+                </para>\r
+            </listitem>\r
+        </varlistentry>\r
+        </variablelist>\r
+    </refsect1>\r
+    <refsect1 id="description"><title>Description</title>\r
+        <para>\r
+            <function>textureProjOffset</function> performs a texture lookup with projection. The texture coordinates\r
+            consumed from <parameter>P</parameter>, not including the last component of <parameter>P</parameter>,\r
+            are divided by the last component of <parameter>P</parameter>. The resulting <inlineequation><mml:math><mml:msup><mml:mn>3</mml:mn><mml:mi>rd</mml:mi></mml:msup></mml:math></inlineequation>\r
+            component of <parameter>P</parameter> in the shadow forms is used as\r
+            <inlineequation><mml:math><mml:msub><mml:mi>D</mml:mi><mml:mi>ref</mml:mi></mml:msub></mml:math></inlineequation>.\r
+            After these values are computed, the texture lookup proceeds as in <citerefentry><refentrytitle>textureOffset</refentrytitle></citerefentry>,\r
+            with the <parameter>offset</parameter> used to offset the computed texture coordinates.\r
+        </para>\r
+    </refsect1>\r
+    <refsect1 id="versions"><title>Version Support</title>\r
+        <informaltable frame="topbot">\r
+            #VARTABLECOLS#\r
+                <thead>\r
+                    #FUNCTABLEHEADER#\r
+                    <row>\r
+                        <entry>textureProjOffset</entry>#newin13#\r
+                    </row>\r
+                    <row>\r
+                        <entry>textureProjOffset (gsampler2DRect{Shadow})</entry>#newin14#\r
+                    </row>\r
+                </thead>\r
+            </tgroup>\r
+        </informaltable>\r
+    </refsect1>\r
+    <refsect1 id="seealso"><title>See Also</title>\r
+        <para>\r
+            <citerefentry><refentrytitle>texelFetch</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>texelFetchOffset</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>texture</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureGather</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureGatherOffset</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureGatherOffsets</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureGrad</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureGradOffset</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureLod</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureLodOffset</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureOffset</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureProj</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureProjGrad</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureProjGradOffset</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureProjLod</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureProjLodOffset</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureQueryLod</refentrytitle></citerefentry>,\r
+            <citerefentry><refentrytitle>textureSize</refentrytitle></citerefentry>\r
+        </para>\r
+    </refsect1>\r
+    <refsect1 id="Copyright"><title>Copyright</title>\r
+        <para>\r
+            Copyright <trademark class="copyright"></trademark> 2011 Khronos Group. \r
+            This material may be distributed subject to the terms and conditions set forth in \r
+            the Open Publication License, v 1.0, 8 June 1999.\r
+            <ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.\r
+        </para>\r
+    </refsect1>\r
+</refentry>\r
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