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105 lines
4.9 KiB
XML
105 lines
4.9 KiB
XML
<?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="glCompileShader">
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<refmeta>
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<refentrytitle>glCompileShader</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glCompileShader</refname>
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<refpurpose>compile a shader object</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>glCompileShader</function></funcdef>
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<paramdef>GLuint <parameter>shader</parameter></paramdef>
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</funcprototype>
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</funcsynopsis>
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</refsynopsisdiv>
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<refsect1 id="parameters"><title>Parameters</title>
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<variablelist>
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<varlistentry>
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<term><parameter>shader</parameter></term>
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<listitem>
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<para>Specifies the shader object to be
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compiled.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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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>glCompileShader</function> compiles the source
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code strings that have been stored in the shader object
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specified by <parameter>shader</parameter>.</para>
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<para>The compilation status will be stored as part of the
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shader object's state. This value will be set to
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<constant>GL_TRUE</constant> if the shader was compiled without
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errors and is ready for use, and <constant>GL_FALSE</constant>
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otherwise. It can be queried by calling
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<citerefentry><refentrytitle>glGetShaderiv</refentrytitle></citerefentry>
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with arguments <parameter>shader</parameter> and
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<constant>GL_COMPILE_STATUS</constant>.</para>
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<para>Compilation of a shader can fail for a number of reasons
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as specified by the <emphasis>OpenGL ES Shading Language Specification</emphasis>.
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Whether or not the compilation was successful, information about
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the compilation can be obtained from the shader object's
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information log by calling
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<citerefentry><refentrytitle>glGetShaderInfoLog</refentrytitle></citerefentry>.</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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<function>glCompileShader</function>, <citerefentry><refentrytitle>glGetShaderPrecisionFormat</refentrytitle></citerefentry>, and
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<citerefentry><refentrytitle>glReleaseShaderCompiler</refentrytitle></citerefentry> 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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<para><constant>GL_INVALID_VALUE</constant> is generated if
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<parameter>shader</parameter> is not a value generated by
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OpenGL.</para>
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<para><constant>GL_INVALID_OPERATION</constant> is generated if
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<parameter>shader</parameter> is not a shader object.</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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<para><citerefentry><refentrytitle>glGetShaderInfoLog</refentrytitle></citerefentry>
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with argument <parameter>shader</parameter></para>
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<para><citerefentry><refentrytitle>glGetShaderiv</refentrytitle></citerefentry>
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with arguments <parameter>shader</parameter> and
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<constant>GL_COMPILE_STATUS</constant></para>
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<para><citerefentry><refentrytitle>glIsShader</refentrytitle></citerefentry></para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para><citerefentry><refentrytitle>glCreateShader</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glLinkProgram</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glReleaseShaderCompiler</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glShaderSource</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGetShaderPrecisionFormat</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> 2003-2005 3Dlabs Inc. Ltd.
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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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