Opentk/Source/Bind/Specifications/Docs/glShaderBinary.xml

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<refentry id="glShaderBinary">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>2010</year>
                <holder>Khronos Group</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>glShaderBinary</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glShaderBinary</refname>
        <refpurpose>load pre-compiled shader binaries</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glShaderBinary</function></funcdef>
                <paramdef>GLsizei <parameter>count</parameter></paramdef>
                <paramdef>const GLuint *<parameter>shaders</parameter></paramdef>
                <paramdef>GLenum <parameter>binaryFormat</parameter></paramdef>
                <paramdef>const void *<parameter>binary</parameter></paramdef>
                <paramdef>GLsizei <parameter>length</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <refsect1 id="parameters"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>count</parameter></term>
            <listitem>
            <para>
                Specifies the number of shader object handles contained in <parameter>shaders</parameter>.
            </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>shaders</parameter></term>
            <listitem>
            <para>
                Specifies the address of an array of shader handles into which to load pre-compiled shader binaries.
            </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>binaryFormat</parameter></term>
            <listitem>
            <para>
                Specifies the format of the shader binaries contained in <parameter>binary</parameter>.
            </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>binary</parameter></term>
            <listitem>
            <para>
                Specifies the address of an array of bytes containing pre-compiled binary shader code.
            </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>length</parameter></term>
            <listitem>
            <para>
                Specifies the length of the array whose address is given in <parameter>binary</parameter>.
            </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>glShaderBinary</function> loads pre-compiled shader binary code into the <parameter>count</parameter>
            shader objects whose handles are given in <parameter>shaders</parameter>. <parameter>binary</parameter>
            points to <parameter>length</parameter> bytes of binary shader code stored in client memory.
            <parameter>binaryFormat</parameter> specifies the format of the pre-compiled code.
        </para>
        <para>
            The binary image contained in <parameter>binary</parameter> will be decoded according to the extension
            specification defining the specified <parameter>binaryFormat</parameter> token. OpenGL
            does not define any specific binary formats, but it does provide a mechanism to obtain token
            vaues for such formats provided by such extensions.
        </para>
        <para>
            Depending on the types of the shader objects in <parameter>shaders</parameter>, <function>glShaderBinary</function>
            will individually load binary vertex or fragment shaders, or load an executable binary that contains an optimized
            pair of vertex and fragment shaders stored in the same binary.
        </para>
    </refsect1>
    <refsect1 id="errors"><title>Errors</title>
        <para>
            <constant>GL_INVALID_OPERATION</constant> is generated if more than one of the handles in
            <parameter>shaders</parameter> refers to the same shader object.
        </para>
        <para>
            <constant>GL_INVALID_ENUM</constant> is generated if <parameter>binaryFormat</parameter> is not an
            accepted value.
        </para>
        <para>
            <constant>GL_INVALID_VALUE</constant> is generated if the data pointed to by <parameter>binary</parameter>
            does not match the format specified by <parameter>binaryFormat</parameter>.
        </para>
    </refsect1>
    <refsect1 id="associatedgets"><title>Associated Gets</title>
        <para>
            <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with parameter <constant>GL_NUM_SHADER_BINARY_FORMATS</constant>.
        </para>
        <para>
            <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with parameter <constant>GL_SHADER_BINARY_FORMATS</constant>.
        </para>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>glGetProgram</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glGetProgramBinary</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glProgramBinary</refentrytitle></citerefentry>
        </para>
    </refsect1>
    <refsect1 id="Copyright"><title>Copyright</title>
        <para>
            Copyright <trademark class="copyright"></trademark> 2010 Khronos Group. 
            This material may be distributed subject to the terms and conditions set forth in 
            the Open Publication License, v 1.0, 8 June 1999.
            <ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
        </para>
    </refsect1>
</refentry>