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65 lines
3.5 KiB
XML
65 lines
3.5 KiB
XML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
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"http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
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<refentry id="glReleaseShaderCompiler">
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<refmeta>
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<refentrytitle>glReleaseShaderCompiler</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glReleaseShaderCompiler</refname>
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<refpurpose>release resources allocated by the shader compiler</refpurpose>
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</refnamediv>
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<refsynopsisdiv><title>C Specification</title>
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<funcsynopsis>
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<funcprototype>
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<funcdef>void <function>glReleaseShaderCompiler</function></funcdef>
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<paramdef> <parameter>void</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1 id="description"><title>Description</title>
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<para>For implementations that support a shader compiler,
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<function>glReleaseShaderCompiler</function>
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frees resources allocated by the shader compiler. This is a hint from the application
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that additional shader compilations are unlikely to occur, at least for some period of time,
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and that the resources consumed by the shader compiler may be released and put to better use
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elsewhere.</para>
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<para>However, if a call to <citerefentry><refentrytitle>glCompileShader</refentrytitle></citerefentry>
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is made after a call to <function>glReleaseShaderCompiler</function>, the shader compiler must be restored
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to service the compilation request as if <function>glReleaseShaderCompiler</function> had never been called.</para>
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</refsect1>
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<refsect1 id="notes"><title>Notes</title>
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<para>Shader compiler support is optional, and thus must be queried
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before use by calling <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>
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with argument <constant>GL_SHADER_COMPILER</constant>. <citerefentry><refentrytitle>glShaderSource</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glCompileShader</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGetShaderPrecisionFormat</refentrytitle></citerefentry>, and
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<function>glReleaseShaderCompiler</function> will
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each generate <constant>GL_INVALID_OPERATION</constant> on implementations
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that do not support a shader compiler. Such implementations instead offer the
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<citerefentry><refentrytitle>glShaderBinary</refentrytitle></citerefentry>
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alternative for supplying a pre-compiled shader binary.</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para><constant>GL_INVALID_OPERATION</constant> is generated if
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a shader compiler is not supported.</para>
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</refsect1>
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<refsect1 id="associatedgets"><title>Associated Gets</title>
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<para><citerefentry><refentrytitle>glGet</refentrytitle></citerefentry>
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with argument <constant>GL_SHADER_COMPILER</constant></para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para><citerefentry><refentrytitle>glCompileShader</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glShaderSource</refentrytitle></citerefentry></para>
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</refsect1>
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<refsect1 id="copyright"><title>Copyright</title>
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<para>
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Copyright <trademark class="copyright"></trademark> 2008 Khronos Group.
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This material may be distributed subject to the terms and conditions set forth in
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the Open Publication License, v 1.0, 8 June 1999.
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<ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
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</para>
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</refsect1>
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</refentry>
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