mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-26 21:25:29 +00:00
384 lines
15 KiB
XML
384 lines
15 KiB
XML
<!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="glGetProgram">
|
|
<info>
|
|
<copyright>
|
|
<year>2003-2005</year>
|
|
<holder>3Dlabs Inc. Ltd.</holder>
|
|
</copyright>
|
|
<copyright>
|
|
<year>2010-2013</year>
|
|
<holder>Khronos Group</holder>
|
|
</copyright>
|
|
</info>
|
|
<refmeta>
|
|
<refentrytitle>glGetProgram</refentrytitle>
|
|
<manvolnum>3G</manvolnum>
|
|
</refmeta>
|
|
<refnamediv>
|
|
<refname>glGetProgramiv</refname>
|
|
<refpurpose>Returns a parameter from a program object</refpurpose>
|
|
</refnamediv>
|
|
<refsynopsisdiv><title>C Specification</title>
|
|
<funcsynopsis>
|
|
<funcprototype>
|
|
<funcdef>void <function>glGetProgramiv</function></funcdef>
|
|
<paramdef>GLuint <parameter>program</parameter></paramdef>
|
|
<paramdef>GLenum <parameter>pname</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>Specifies the program object to be
|
|
queried.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>pname</parameter></term>
|
|
<listitem>
|
|
<para>Specifies the object parameter. Accepted
|
|
symbolic names are
|
|
<constant>GL_DELETE_STATUS</constant>,
|
|
<constant>GL_LINK_STATUS</constant>,
|
|
<constant>GL_VALIDATE_STATUS</constant>,
|
|
<constant>GL_INFO_LOG_LENGTH</constant>,
|
|
<constant>GL_ATTACHED_SHADERS</constant>,
|
|
<constant>GL_ACTIVE_ATOMIC_COUNTER_BUFFERS</constant>,
|
|
<constant>GL_ACTIVE_ATTRIBUTES</constant>,
|
|
<constant>GL_ACTIVE_ATTRIBUTE_MAX_LENGTH</constant>,
|
|
<constant>GL_ACTIVE_UNIFORMS</constant>,
|
|
<constant>GL_ACTIVE_UNIFORM_BLOCKS</constant>,
|
|
<constant>GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH</constant>,
|
|
<constant>GL_ACTIVE_UNIFORM_MAX_LENGTH</constant>,
|
|
<constant>GL_COMPUTE_WORK_GROUP_SIZE</constant>
|
|
<constant>GL_PROGRAM_BINARY_LENGTH</constant>,
|
|
<constant>GL_TRANSFORM_FEEDBACK_BUFFER_MODE</constant>,
|
|
<constant>GL_TRANSFORM_FEEDBACK_VARYINGS</constant>,
|
|
<constant>GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH</constant>,
|
|
<constant>GL_GEOMETRY_VERTICES_OUT</constant>,
|
|
<constant>GL_GEOMETRY_INPUT_TYPE</constant>, and
|
|
<constant>GL_GEOMETRY_OUTPUT_TYPE</constant>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>params</parameter></term>
|
|
<listitem>
|
|
<para>Returns the requested object parameter.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
<refsect1 xml:id="description"><title>Description</title>
|
|
<para><function>glGetProgram</function>
|
|
returns in <parameter>params</parameter>
|
|
the value of a parameter for a specific program object. The following parameters are defined:</para>
|
|
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><constant>GL_DELETE_STATUS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns
|
|
<constant>GL_TRUE</constant> if
|
|
<parameter>program</parameter> is currently flagged
|
|
for deletion, and <constant>GL_FALSE</constant>
|
|
otherwise.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_LINK_STATUS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns
|
|
<constant>GL_TRUE</constant> if the last link
|
|
operation on <parameter>program</parameter> was
|
|
successful, and <constant>GL_FALSE</constant>
|
|
otherwise.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_VALIDATE_STATUS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns
|
|
<constant>GL_TRUE</constant> or if the last
|
|
validation operation on
|
|
<parameter>program</parameter> was successful, and
|
|
<constant>GL_FALSE</constant>
|
|
otherwise.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_INFO_LOG_LENGTH</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
number of characters in the information log for
|
|
<parameter>program</parameter> including the null
|
|
termination character (i.e., the size of the
|
|
character buffer required to store the information
|
|
log). If <parameter>program</parameter> has no
|
|
information log, a value of 0 is
|
|
returned.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_ATTACHED_SHADERS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
number of shader objects attached to
|
|
<parameter>program</parameter>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_ACTIVE_ATOMIC_COUNTER_BUFFERS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
number of active attribute atomic counter buffers used by
|
|
<parameter>program</parameter>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_ACTIVE_ATTRIBUTES</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
number of active attribute variables for
|
|
<parameter>program</parameter>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_ACTIVE_ATTRIBUTE_MAX_LENGTH</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
length of the longest active attribute name for
|
|
<parameter>program</parameter>, including the null
|
|
termination character (i.e., the size of the
|
|
character buffer required to store the longest
|
|
attribute name). If no active attributes exist, 0 is
|
|
returned.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_ACTIVE_UNIFORMS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
number of active uniform variables for
|
|
<parameter>program</parameter>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_ACTIVE_UNIFORM_MAX_LENGTH</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
length of the longest active uniform variable name
|
|
for <parameter>program</parameter>, including the
|
|
null termination character (i.e., the size of the
|
|
character buffer required to store the longest
|
|
uniform variable name). If no active uniform
|
|
variables exist, 0 is returned.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_PROGRAM_BINARY_LENGTH</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the
|
|
length of the program binary, in bytes that will be returned by
|
|
a call to <citerefentry><refentrytitle>glGetProgramBinary</refentrytitle></citerefentry>.
|
|
When a progam's <constant>GL_LINK_STATUS</constant> is <constant>GL_FALSE</constant>,
|
|
its program binary length is zero.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_COMPUTE_WORK_GROUP_SIZE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns an
|
|
array of three integers containing the local work group size of
|
|
the compute program as specified by its input layout qualifier(s).
|
|
<parameter>program</parameter> must be the name of a program object
|
|
that has been previously linked successfully and contains a binary
|
|
for the compute shader stage.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_TRANSFORM_FEEDBACK_BUFFER_MODE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns a symbolic constant
|
|
indicating the buffer mode used when transform feedback is active.
|
|
This may be <constant>GL_SEPARATE_ATTRIBS</constant> or
|
|
<constant>GL_INTERLEAVED_ATTRIBS</constant>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_TRANSFORM_FEEDBACK_VARYINGS</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the number of varying
|
|
variables to capture in transform feedback mode for the program.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_TRANSFORM_FEEDBACK_VARYING_MAX_LENGTH</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the length of the longest
|
|
variable name to be used for transform feedback, including the null-terminator.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_GEOMETRY_VERTICES_OUT</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns the maximum number of vertices
|
|
that the geometry shader in <parameter>program</parameter> will output.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_GEOMETRY_INPUT_TYPE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns a symbolic constant indicating
|
|
the primitive type accepted as input to the geometry shader contained in
|
|
<parameter>program</parameter>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
|
|
<varlistentry>
|
|
<term><constant>GL_GEOMETRY_OUTPUT_TYPE</constant></term>
|
|
<listitem>
|
|
<para>
|
|
</para>
|
|
<para> <parameter>params</parameter> returns a symbolic constant indicating
|
|
the primitive type that will be output by the geometry shader contained
|
|
in <parameter>program</parameter>.</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
<refsect1 xml:id="notes"><title>Notes</title>
|
|
<para>
|
|
<constant>GL_ACTIVE_UNIFORM_BLOCKS</constant> and
|
|
<constant>GL_ACTIVE_UNIFORM_BLOCK_MAX_NAME_LENGTH</constant>
|
|
are available only if the GL version 3.1 or greater.
|
|
</para>
|
|
<para>
|
|
<constant>GL_GEOMETRY_VERTICES_OUT</constant>, <constant>GL_GEOMETRY_INPUT_TYPE</constant>
|
|
and <constant>GL_GEOMETRY_OUTPUT_TYPE</constant> are accepted only if the GL
|
|
version is 3.2 or greater.
|
|
</para>
|
|
<para>
|
|
<constant>GL_COMPUTE_WORK_GROUP_SIZE</constant> is accepted only if the
|
|
GL version is 4.3 or greater.
|
|
</para>
|
|
|
|
<para>If an error is generated, no change is made to the
|
|
contents of <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 a value generated by OpenGL.</para>
|
|
|
|
<para><constant>GL_INVALID_OPERATION</constant>
|
|
is generated if <parameter>program</parameter>
|
|
does not refer to a program object.</para>
|
|
|
|
<para><constant>GL_INVALID_OPERATION</constant> is generated if
|
|
<parameter>pname</parameter> is <constant>GL_GEOMETRY_VERTICES_OUT</constant>,
|
|
<constant>GL_GEOMETRY_INPUT_TYPE</constant>, or <constant>GL_GEOMETRY_OUTPUT_TYPE</constant>,
|
|
and <parameter>program</parameter> does not contain a geometry shader.</para>
|
|
|
|
<para><constant>GL_INVALID_ENUM</constant>
|
|
is generated if <parameter>pname</parameter>
|
|
is not an accepted value.</para>
|
|
|
|
<para><constant>GL_INVALID_OPERATION</constant> is generated if <parameter>pname</parameter>
|
|
is <constant>GL_COMPUTE_WORK_GROUP_SIZE</constant> and <parameter>program</parameter>
|
|
does not contain a binary for the compute shader stage.</para>
|
|
|
|
</refsect1>
|
|
<refsect1 xml:id="associatedgets"><title>Associated Gets</title>
|
|
<para><citerefentry><refentrytitle>glGetActiveAttrib</refentrytitle></citerefentry>
|
|
with argument <parameter>program</parameter></para>
|
|
|
|
<para><citerefentry><refentrytitle>glGetActiveUniform</refentrytitle></citerefentry>
|
|
with argument <parameter>program</parameter></para>
|
|
|
|
<para><citerefentry><refentrytitle>glGetAttachedShaders</refentrytitle></citerefentry>
|
|
with argument <parameter>program</parameter></para>
|
|
|
|
<para><citerefentry><refentrytitle>glGetProgramInfoLog</refentrytitle></citerefentry>
|
|
with argument <parameter>program</parameter></para>
|
|
|
|
<para><citerefentry><refentrytitle>glIsProgram</refentrytitle></citerefentry>
|
|
<parameter/></para>
|
|
</refsect1>
|
|
<refsect1 xml:id="seealso"><title>See Also</title>
|
|
<para><citerefentry><refentrytitle>glAttachShader</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glCreateProgram</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glDeleteProgram</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetShader</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glLinkProgram</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glValidateProgram</refentrytitle></citerefentry></para>
|
|
</refsect1>
|
|
<refsect1 xml:id="Copyright"><title>Copyright</title>
|
|
<para>
|
|
Copyright <trademark class="copyright"/> 2003-2005 3Dlabs Inc. Ltd.
|
|
Copyright <trademark class="copyright"/> 2010-2013 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>
|