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<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>
<!-- Converted by db4-upgrade version 1.1 -->
<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="glGetProgramResource">
<info>
<copyright>
<year>2013</year>
<holder>Khronos Group</holder>
</copyright>
</info>
<refmeta>
<refentrytitle>glGetProgramResource</refentrytitle>
<manvolnum>3G</manvolnum>
</refmeta>
<refnamediv>
<refname>glGetProgramResource</refname>
<refpurpose>retrieve values for multiple properties of a single active resource within a program object</refpurpose>
</refnamediv>
<refsynopsisdiv><title>C Specification</title>
<funcsynopsis>
<funcprototype>
<funcdef>void <function>glGetProgramResourceiv</function></funcdef>
<paramdef>GLuint <parameter>program</parameter></paramdef>
<paramdef>GLenum <parameter>programInterface</parameter></paramdef>
<paramdef>GLuint <parameter>index</parameter></paramdef>
<paramdef>GLsizei <parameter>propCount</parameter></paramdef>
<paramdef>const Glenum * <parameter>props</parameter></paramdef>
<paramdef>GLsizei <parameter>bufSize</parameter></paramdef>
<paramdef>GLsizei * <parameter>length</parameter></paramdef>
<paramdef>GLint * <parameter>params</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 xml:id="parameters"><title>Parameters</title>
<variablelist>
<varlistentry>
<term><parameter>program</parameter></term>
<listitem>
<para>
The name of a program object whose resources to query.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>programInterface</parameter></term>
<listitem>
<para>
A token identifying the interface within <parameter>program</parameter> containing the resource named <parameter>name</parameter>.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="description"><title>Description</title>
<para>
<function>glGetProgramResourceiv</function> returns values for multiple properties of a single active resource with an
index of <parameter>index</parameter> in the interface <parameter>programInterface</parameter> of program object
<parameter>program</parameter>. For each resource, values for <parameter>propCount</parameter> properties specified
by the array <parameter>props</parameter> are returned. <parameter>propCount</parameter> may not be zero.
An error is generated if any value
in <parameter>props</parameter> is not one of the properties described immediately belowor if any value in <parameter>props</parameter> is not
allowed for <parameter>programInterface</parameter>. The set of allowed <parameter>programInterface</parameter>
values for each property can be found in the following table:
</para>
<informaltable>
<tgroup cols="2" align="left">
<colspec colnum="1" colname="col1" colwidth="1*"/>
<colspec colnum="2" colname="col2" colwidth="2*"/>
<thead>
<row>
<entry>Property</entry>
<entry>Supported Interfaces</entry>
</row>
</thead>
<tbody>
<row>
<entry><constant>GL_NAME_LENGTH</constant></entry>
<entry>Any except <constant>GL_ATOMIC_COUNTER_BUFFER</constant> and <constant>GL_TRANSFORM_FEEDBACK_BUFFER</constant></entry>
</row>
<row>
<entry><constant>GL_TYPE</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant>, <constant>GL_TRANSFORM_FEEDBACK_VARYING</constant>, <constant>GL_BUFFER_VARIABLE</constant></entry>
</row>
<row>
<entry><constant>GL_ARRAY_SIZE</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_BUFFER_VARIABLE</constant>, <constant>GL_PROGRAM_INPUT</constant>,
<constant>GL_PROGRAM_OUTPUT, VERTEX_SUBROUTINE_UNIFORM</constant>, <constant>GL_TESS_CONTROL_SUBROUTINE_UNIFORM</constant>,
<constant>GL_TESS_EVALUATION_SUBROUTINE_UNIFORM</constant>, <constant>GL_GEOMETRY_SUBROUTINE_UNIFORM</constant>,
<constant>GL_FRAGMENT_SUBROUTINE_UNIFORM</constant>, <constant>GL_COMPUTE_SUBROUTINE_UNIFORM</constant>, <constant>GL_TRANSFORM_FEEDBACK_VARYING</constant></entry>
</row>
<row>
<entry><constant>GL_OFFSET</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_BUFFER_VARIABLE</constant>, <constant>GL_TRANSFORM_FEEDBACK_VARYING</constant></entry>
</row>
<row>
<entry><constant>GL_BLOCK_INDEX</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_BUFFER_VARIABLE</constant></entry>
</row>
<row>
<entry><constant>GL_ARRAY_STRIDE</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_BUFFER_VARIABLE</constant></entry>
</row>
<row>
<entry><constant>GL_MATRIX_STRIDE</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_BUFFER_VARIABLE</constant></entry>
</row>
<row>
<entry><constant>GL_IS_ROW_MAJOR</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_BUFFER_VARIABLE</constant></entry>
</row>
<row>
<entry><constant>GL_ATOMIC_COUNTER_BUFFER_INDEX</constant></entry>
<entry><constant>GL_UNIFORM</constant></entry>
</row>
<row>
<entry><constant>GL_TEXTURE_BUFFER</constant></entry>
<entry><emphasis>none</emphasis></entry>
</row>
<row>
<entry><constant>GL_BUFFER_BINDING</constant></entry>
<entry><constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_TRANSFORM_FEEDBACK_BUFFER</constant></entry>
</row>
<row>
<entry><constant>GL_BUFFER_DATA_SIZE</constant></entry>
<entry><constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant></entry>
</row>
<row>
<entry><constant>GL_NUM_ACTIVE_VARIABLES</constant></entry>
<entry><constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_TRANSFORM_FEEDBACK_BUFFER</constant></entry>
</row>
<row>
<entry><constant>GL_ACTIVE_VARIABLES</constant></entry>
<entry><constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_TRANSFORM_FEEDBACK_BUFFER</constant></entry>
</row>
<row>
<entry><constant>GL_REFERENCED_BY_VERTEX_SHADER</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_SHADER</constant>,
<constant>GL_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_BUFFER_VARIABLE</constant>,
<constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_REFERENCED_BY_TESS_CONTROL_SHADER</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_SHADER</constant>,
<constant>GL_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_BUFFER_VARIABLE</constant>,
<constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_REFERENCED_BY_TESS_EVALUATION_SHADER</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_SHADER</constant>,
<constant>GL_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_BUFFER_VARIABLE</constant>,
<constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_REFERENCED_BY_GEOMETRY_SHADER</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_SHADER</constant>,
<constant>GL_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_BUFFER_VARIABLE</constant>,
<constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_REFERENCED_BY_FRAGMENT_SHADER</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_SHADER</constant>,
<constant>GL_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_BUFFER_VARIABLE</constant>,
<constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_REFERENCED_BY_COMPUTE_SHADER</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_UNIFORM_BLOCK</constant>, <constant>GL_ATOMIC_COUNTER_SHADER</constant>,
<constant>GL_BUFFER</constant>, <constant>GL_SHADER_STORAGE_BLOCK</constant>, <constant>GL_BUFFER_VARIABLE</constant>,
<constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_NUM_COMPATIBLE_SUBROUTINES</constant></entry>
<entry><constant>GL_VERTEX_SUBROUTINE_UNIFORM</constant>, <constant>GL_TESS_CONTROL_SUBROUTINE_UNIFORM</constant>,
<constant>GL_TESS_EVALUATION_SUBROUTINE_UNIFORM</constant>, <constant>GL_GEOMETRY_SUBROUTINE_UNIFORM</constant>,
<constant>GL_FRAGMENT_SUBROUTINE_UNIFORM</constant>, <constant>GL_COMPUTE_SUBROUTINE_UNIFORM</constant></entry>
</row>
<row>
<entry><constant>GL_COMPATIBLE_SUBROUTINES</constant></entry>
<entry><constant>GL_VERTEX_SUBROUTINE_UNIFORM</constant>, <constant>GL_TESS_CONTROL_SUBROUTINE_UNIFORM</constant>,
<constant>GL_TESS_EVALUATION_SUBROUTINE_UNIFORM</constant>, <constant>GL_GEOMETRY_SUBROUTINE_UNIFORM</constant>,
<constant>GL_FRAGMENT_SUBROUTINE_UNIFORM</constant>, <constant>GL_COMPUTE_SUBROUTINE_UNIFORM</constant></entry>
</row>
<row>
<entry><constant>GL_TOP_LEVEL_ARRAY_SIZE</constant></entry>
<entry><constant>GL_BUFFER_VARIABLE</constant></entry>
</row>
<row>
<entry><constant>GL_TOP_LEVEL_ARRAY_STRIDE</constant></entry>
<entry><constant>GL_BUFFER_VARIABLE</constant></entry>
</row>
<row>
<entry><constant>GL_LOCATION</constant></entry>
<entry><constant>GL_UNIFORM</constant>, <constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant>,
<constant>GL_VERTEX_SUBROUTINE_UNIFORM</constant>, <constant>GL_TESS_CONTROL_SUBROUTINE_UNIFORM</constant>,
<constant>GL_TESS_EVALUATION_SUBROUTINE_UNIFORM</constant>, <constant>GL_GEOMETRY_SUBROUTINE_UNIFORM</constant>,
<constant>GL_FRAGMENT_SUBROUTINE_UNIFORM</constant>, <constant>GL_COMPUTE_SUBROUTINE_UNIFORM</constant></entry>
</row>
<row>
<entry><constant>GL_LOCATION_INDEX</constant></entry>
<entry><constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_IS_PER_PATCH</constant></entry>
<entry><constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_LOCATION_COMPONENT</constant></entry>
<entry><constant>GL_PROGRAM_INPUT</constant>, <constant>GL_PROGRAM_OUTPUT</constant></entry>
</row>
<row>
<entry><constant>GL_TRANSFORM_FEEDBACK_BUFFER_INDEX</constant></entry>
<entry><constant>GL_TRANSFORM_FEEDBACK_VARYING</constant></entry>
</row>
<row>
<entry><constant>GL_TRANSFORM_FEEDBACK_BUFFER_STRIDE</constant></entry>
<entry><constant>GL_TRANSFORM_FEEDBACK_BUFFER</constant></entry>
</row>
</tbody>
</tgroup>
</informaltable>
<para>
For the property <constant>GL_NAME_LENGTH</constant>, a single integer identifying the length of
the name string associated with an active variable, interface block, or
subroutine is written to <parameter>params</parameter>. The name length includes a terminating
null character.
</para>
<para>
For the property <constant>GL_TYPE</constant>, a single integer identifying the type of an active
variable is written to <parameter>params</parameter>. The integer returned is one of the
values found in table 2.16.
</para>
<para>
For the property <constant>GL_ARRAY_SIZE</constant>, a single integer identifying the number of
active array elements of an active variable is written to <parameter>params</parameter>. The
array size returned is in units of the type associated with the property
<constant>GL_TYPE</constant>. For active variables not corresponding to an array of basic types,
the value zero is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_BLOCK_INDEX</constant>, a single integer identifying the index of
the active interface block containing an active variable is written to
<parameter>params</parameter>. If the variable is not the member of an interface block, the
value -1 is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_OFFSET</constant>, a single integer identifying the offset of an
active variable is written to <parameter>params</parameter>. For variables in the <constant>GL_UNIFORM</constant> and
<constant>GL_BUFFER_VARIABLE</constant> interfaces that are backed by a buffer object, the value
written is the offset of that variable relative to the base of the buffer
range holding its value. For variables in the <constant>GL_TRANSFORM_FEEDBACK_VARYING</constant>
interface, the value written is the offset in the transform feedback
buffer storage assigned to each vertex captured in transform feedback mode
where the value of the variable will be stored. Such offsets are
specified via the <code>xfb_offset</code> layout qualifier or assigned according to
the variables position in the list of strings passed to
<citerefentry><refentrytitle>glTransformFeedbackVaryings</refentrytitle></citerefentry>. Offsets are expressed in basic machine units.
For all variables not recorded in transform feedback mode, including the
special names <code>"gl_NextBuffer"</code>, <code>"gl_SkipComponents1"</code>, <code>"gl_SkipComponents2"</code>,
<code>"gl_SkipComponents3"</code>, and <code>"gl_SkipComponents4"</code>, -1 is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_ARRAY_STRIDE</constant>, a single integer identifying the stride
between array elements in an active variable is written to <parameter>params</parameter>. For
active variables declared as an array of basic types, the value written is
the difference, in basic machine units, between the offsets of consecutive
elements in an array. For active variables not declared as an array of
basic types, zero is written to <parameter>params</parameter>. For active variables not backed
by a buffer object, -1 is written to <parameter>params</parameter>, regardless of the variable
type.
</para>
<para>
For the property <constant>GL_MATRIX_STRIDE</constant>, a single integer identifying the stride
between columns of a column-major matrix or rows of a row-major matrix is
written to <parameter>params</parameter>. For active variables declared a single matrix or
array of matrices, the value written is the difference, in basic machine
units, between the offsets of consecutive columns or rows in each matrix.
For active variables not declared as a matrix or array of matrices, zero
is written to <parameter>params</parameter>. For active variables not backed by a buffer
object, -1 is written to <parameter>params</parameter>, regardless of the variable type.
</para>
<para>
For the property <constant>GL_IS_ROW_MAJOR</constant>, a single integer identifying whether an
active variable is a row-major matrix is written to <parameter>params</parameter>. For active
variables backed by a buffer object, declared as a single matrix or array
of matrices, and stored in row-major order, one is written to <parameter>params</parameter>.
For all other active variables, zero is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_ATOMIC_COUNTER_BUFFER_INDEX</constant>, a single integer identifying
the index of the active atomic counter buffer containing an active
variable is written to <parameter>params</parameter>. If the variable is not an atomic counter
uniform, the value -1 is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_BUFFER_BINDING</constant>, to index of the buffer binding point
associated with the active uniform block, shader storage block, atomic
counter buffer or transform feedback buffer is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_BUFFER_DATA_SIZE</constant>, then the implementation-dependent
minimum total buffer object size, in basic machine units, required to hold
all active variables associated with an active uniform block, shader
storage block, or atomic counter buffer is written to <parameter>params</parameter>. If the
final member of an active shader storage block is array with no declared
size, the minimum buffer size is computed assuming the array was declared
as an array with one element.
</para>
<para>
For the property <constant>GL_NUM_ACTIVE_VARIABLES</constant>, the number of active variables
associated with an active uniform block, shader storage block, atomic
counter buffer or transform feedback buffer is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_ACTIVE_VARIABLES</constant>, an array of active variable indices
associated with an active uniform block, shader storage block, atomic
counter buffer or transform feedback buffer is written to <parameter>params</parameter>. The number of values written to
<parameter>params</parameter> for an active resource is given by the value of the property
<constant>GL_NUM_ACTIVE_VARIABLES</constant> for the resource.
</para>
<para>
For the properties <constant>GL_REFERENCED_BY_VERTEX_SHADER</constant>,
<constant>GL_REFERENCED_BY_TESS_CONTROL_SHADER</constant>, <constant>GL_REFERENCED_BY_TESS_EVALUATION_SHADER</constant>,
<constant>GL_REFERENCED_BY_GEOMETRY_SHADER</constant>, <constant>GL_REFERENCED_BY_FRAGMENT_SHADER</constant>, and
<constant>GL_REFERENCED_BY_COMPUTE_SHADER</constant>, a single integer is written to <parameter>params</parameter>,
identifying whether the active resource is referenced by the vertex,
tessellation control, tessellation evaluation, geometry, or fragment
shaders, respectively, in the program object. The value one is written to
<parameter>params</parameter> if an active variable is referenced by the corresponding shader,
or if an active uniform block, shader storage block, or atomic counter
buffer contains at least one variable referenced by the corresponding
shader. Otherwise, the value zero is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_TOP_LEVEL_ARRAY_SIZE</constant>, a single integer identifying the
number of active array elements of the top-level shader storage block
member containing to the active variable is written to <parameter>params</parameter>. If the
top-level block member is not declared as an array, the value one is
written to <parameter>params</parameter>. If the top-level block member is an array with no
declared size, the value zero is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_TOP_LEVEL_ARRAY_STRIDE</constant>, a single integer identifying the
stride between array elements of the top-level shader storage block member
containing the active variable is written to <parameter>params</parameter>. For top-level
block members declared as arrays, the value written is the difference, in
basic machine units, between the offsets of the active variable for
consecutive elements in the top-level array. For top-level block members
not declared as an array, zero is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_LOCATION</constant>, a single integer identifying the assigned
location for an active uniform, input, output, or subroutine uniform
variable is written to <parameter>params</parameter>. For input, output, or uniform variables
with locations specified by a layout qualifier, the specified location is
used. For vertex shader input or fragment shader output variables without
a layout qualifier, the location assigned when a program is linked is
written to <parameter>params</parameter>. For all other input and output variables, the value
-1 is written to <parameter>params</parameter>. For uniforms in uniform blocks, the value -1
is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_LOCATION_INDEX</constant>, a single integer identifying the fragment
color index of an active fragment shader output variable is written to
<parameter>params</parameter>. If the active variable is an output for a non-fragment shader,
the value -1 will be written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_IS_PER_PATCH</constant>, a single integer identifying whether the
input or output is a per-patch attribute. If the active variable is a
per-patch attribute (declared with the <code>patch</code> qualifier), the value one
is written to <parameter>params</parameter>; otherwise, the value zero is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_LOCATION_COMPONENT</constant>, a single integer indicating the first
component of the location assigned to an active input or output variable
is written to <parameter>params</parameter>. For input and output variables with a component
specified by a <code>layout</code> qualifier, the specified component is written.
For all other input and output variables, the value zero is written.
</para>
<para>
For the property <constant>GL_TRANSFORM_FEEDBACK_BUFFER_INDEX</constant>, a single integer
identifying the index of the active transform feedback buffer associated
with an active variable is written to <parameter>params</parameter>. For variables
corresponding to the special names <code>"gl_NextBuffer"</code>, <code>"gl_SkipComponents1"</code>,
<code>"gl_SkipComponents2"</code>, <code>"gl_SkipComponents3"</code>, and <code>"gl_SkipComponents4"</code>, -1
is written to <parameter>params</parameter>.
</para>
<para>
For the property <constant>GL_TRANSFORM_FEEDBACK_BUFFER_STRIDE</constant>, a single integer
identifying the stride, in basic machine units, between consecutive
vertices written to the transform feedback buffer is written to <parameter>params</parameter>.
</para>
</refsect1>
<refsect1 xml:id="errors"><title>Errors</title>
<para>
<constant>GL_INVALID_VALUE</constant> is generated if <parameter>program</parameter> is
not the name of an existing program object.
</para>
<para>
<constant>GL_INVALID_VALUE</constant> is generated if <parameter>propCount</parameter> is
zero.
</para>
<para>
<constant>GL_INVALID_ENUM</constant> is generated if <parameter>programInterface</parameter>
is not one of the accepted interface types.
</para>
<para>
<constant>GL_INVLALID_ENUM</constant> is generated if any value in <parameter>props</parameter>
is not one of the accepted tokens for the interface <parameter>programInterface</parameter>
</para>
</refsect1>
<refsect1 xml:id="seealso"><title>See Also</title>
<para>
<citerefentry><refentrytitle>glGetProgramResourceName</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glGetGetProgramResourceIndex</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glGetProgramResourceLocation</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>glGetProgramResourceLocationIndex</refentrytitle></citerefentry>.
</para>
</refsect1>
<refsect1 xml:id="Copyright"><title>Copyright</title>
<para>
Copyright <trademark class="copyright"/> 2013 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.
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://opencontent.org/openpub/">http://opencontent.org/openpub/</link>.
</para>
</refsect1>
</refentry>
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