131 lines
6 KiB
XML
131 lines
6 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="glShaderBinary">
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<refmeta>
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<refmetainfo>
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<copyright>
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<year>2010</year>
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<holder>Khronos Group</holder>
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</copyright>
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</refmetainfo>
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<refentrytitle>glShaderBinary</refentrytitle>
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<manvolnum>3G</manvolnum>
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</refmeta>
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<refnamediv>
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<refname>glShaderBinary</refname>
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<refpurpose>load pre-compiled shader binaries</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>glShaderBinary</function></funcdef>
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<paramdef>GLsizei <parameter>count</parameter></paramdef>
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<paramdef>const GLuint *<parameter>shaders</parameter></paramdef>
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<paramdef>GLenum <parameter>binaryFormat</parameter></paramdef>
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<paramdef>const void *<parameter>binary</parameter></paramdef>
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<paramdef>GLsizei <parameter>length</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>count</parameter></term>
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<listitem>
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<para>
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Specifies the number of shader object handles contained in <parameter>shaders</parameter>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>shaders</parameter></term>
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<listitem>
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<para>
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Specifies the address of an array of shader handles into which to load pre-compiled shader binaries.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>binaryFormat</parameter></term>
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<listitem>
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<para>
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Specifies the format of the shader binaries contained in <parameter>binary</parameter>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>binary</parameter></term>
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<listitem>
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<para>
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Specifies the address of an array of bytes containing pre-compiled binary shader code.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>length</parameter></term>
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<listitem>
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<para>
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Specifies the length of the array whose address is given in <parameter>binary</parameter>.
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</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>
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<function>glShaderBinary</function> loads pre-compiled shader binary code into the <parameter>count</parameter>
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shader objects whose handles are given in <parameter>shaders</parameter>. <parameter>binary</parameter>
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points to <parameter>length</parameter> bytes of binary shader code stored in client memory.
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<parameter>binaryFormat</parameter> specifies the format of the pre-compiled code.
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</para>
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<para>
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The binary image contained in <parameter>binary</parameter> will be decoded according to the extension
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specification defining the specified <parameter>binaryFormat</parameter> token. OpenGL
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does not define any specific binary formats, but it does provide a mechanism to obtain token
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vaues for such formats provided by such extensions.
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</para>
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<para>
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Depending on the types of the shader objects in <parameter>shaders</parameter>, <function>glShaderBinary</function>
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will individually load binary vertex or fragment shaders, or load an executable binary that contains an optimized
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pair of vertex and fragment shaders stored in the same binary.
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</para>
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</refsect1>
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<refsect1 id="errors"><title>Errors</title>
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<para>
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<constant>GL_INVALID_OPERATION</constant> is generated if more than one of the handles in
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<parameter>shaders</parameter> refers to the same shader object.
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</para>
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<para>
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<constant>GL_INVALID_ENUM</constant> is generated if <parameter>binaryFormat</parameter> is not an
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accepted value.
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</para>
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<para>
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<constant>GL_INVALID_VALUE</constant> is generated if the data pointed to by <parameter>binary</parameter>
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does not match the format specified by <parameter>binaryFormat</parameter>.
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</para>
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</refsect1>
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<refsect1 id="associatedgets"><title>Associated Gets</title>
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<para>
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<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with parameter <constant>GL_NUM_SHADER_BINARY_FORMATS</constant>.
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</para>
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<para>
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<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with parameter <constant>GL_SHADER_BINARY_FORMATS</constant>.
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</para>
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</refsect1>
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<refsect1 id="seealso"><title>See Also</title>
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<para>
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<citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glGetProgramBinary</refentrytitle></citerefentry>,
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<citerefentry><refentrytitle>glProgramBinary</refentrytitle></citerefentry>
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</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> 2010 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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