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-_C_ License Applicability. Except to the extent portions of this file are
-_C_ made subject to an alternative license as permitted in the SGI Free
-_C_ Software License B, Version 1.1 (the "License"), the contents of this
-_C_ file are subject only to the provisions of the License. You may not use
-_C_ this file except in compliance with the License. You may obtain a copy
-_C_ of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
-_C_ Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
-_C_
-_C_ http://oss.sgi.com/projects/FreeB
-_C_
-_C_ Note that, as provided in the License, the Software is distributed on an
-_C_ "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
-_C_ DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
-_C_ CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
-_C_ PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
-_C_
-_C_ Original Code. The Original Code is: OpenGL Sample Implementation,
-_C_ Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
-_C_ Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
-_C_ Copyright in any portions created by third parties is as indicated
-_C_ elsewhere herein. All Rights Reserved.
-_C_
-_C_ Additional Notice Provisions: The application programming interfaces
-_C_ established by SGI in conjunction with the Original Code are The
-_C_ OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
-_C_ April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
-_C_ 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
-_C_ Window System(R) (Version 1.3), released October 19, 1998. This software
-_C_ was created using the OpenGL(R) version 1.2.1 Sample Implementation
-_C_ published by SGI, but has not been independently verified as being
-_C_ compliant with the OpenGL(R) version 1.2.1 Specification.
-_C_
-_C_ The first character in this file must be an '_'!
-_C_ Anything on a line after _C_ is ignored
-_define(_filters,eqn)_C_
-_C_ eqn is automatically replaced with neqn for nroff
-_header(GetTexParameter,return texture parameter values)
-_names(GetTexParameter,[fi]v)
-.EQ
-delim $$
-.EN
-.SH PARAMETERS
-_phead(_param1)
-Specifies the symbolic name of the target texture.
-_const(TEXTURE_1D),_const(TEXTURE_2D), and _const(TEXTURE_3D) are accepted.
-_phead(_param2)
-Specifies the symbolic name of a texture parameter.
-_const(TEXTURE_MAG_FILTER),
-_const(TEXTURE_MIN_FILTER),
-_const(TEXTURE_MIN_LOD),
-_const(TEXTURE_MAX_LOD),
-_const(TEXTURE_BASE_LEVEL),
-_const(TEXTURE_MAX_LEVEL),
-_const(TEXTURE_WRAP_S),
-_const(TEXTURE_WRAP_T),
-_const(TEXTURE_WRAP_R),
-_const(TEXTURE_BORDER_COLOR),
-_const(TEXTURE_PRIORITY), and
-_const(TEXTURE_RESIDENT) are accepted.
-_phead(_param3)
-Returns the texture parameters.
-.SH DESCRIPTION
-_cmnd returns in _param3 the value or values of the texture parameter
-specified as _param2.
-_param1 defines the target texture,
-either _const(TEXTURE_1D), _const(TEXTURE_2D), or _const(TEXTURE_3D)
-to specify one-, two-, or three-dimensional texturing.
-_param2 accepts the same symbols as _cmnd(TexParameter),
-with the same interpretations:
-.TP 35
-_const(TEXTURE_MAG_FILTER)
-Returns the single-valued texture magnification filter,
-a symbolic constant. The initial value is _const(LINEAR).
-.TP
-_const(TEXTURE_MIN_FILTER)
-Returns the single-valued texture minification filter,
-a symbolic constant. The initial value is _const(NEAREST_MIPMAP_LINEAR).
-.TP
-_const(TEXTURE_MIN_LOD)
-Returns the single-valued texture minimum level-of-detail value. The
-initial value is $-1000$.
-.TP
-_const(TEXTURE_MAX_LOD)
-Returns the single-valued texture maximum level-of-detail value. The
-initial value is 1000.
-.TP
-_const(TEXTURE_BASE_LEVEL)
-Returns the single-valued base texture mipmap level. The initial value is 0.
-.TP
-_const(TEXTURE_MAX_LEVEL)
-Returns the single-valued maximum texture mipmap array level. The initial
-value is 1000.
-.TP
-_const(TEXTURE_WRAP_S)
-Returns the single-valued wrapping function for texture coordinate $s$,
-a symbolic constant. The initial value is _const(REPEAT).
-.TP
-_const(TEXTURE_WRAP_T)
-Returns the single-valued wrapping function for texture coordinate $t$,
-a symbolic constant. The initial value is _const(REPEAT).
-.TP
-_const(TEXTURE_WRAP_R)
-Returns the single-valued wrapping function for texture coordinate $r$,
-a symbolic constant. The initial value is _const(REPEAT).
-.BP
-.TP
-_const(TEXTURE_BORDER_COLOR)
-Returns four integer or floating-point numbers that comprise the RGBA color
-of the texture border.
-Floating-point values are returned in the range [0, 1].
-Integer values are returned as a linear mapping of the internal floating-point
-representation such that 1.0 maps to the most positive representable
-integer and \-1.0 maps to the most negative representable
-integer. The initial value is (0, 0, 0, 0).
-.TP
-_const(TEXTURE_PRIORITY)
-Returns the residence priority of the target texture (or the named
-texture bound to it). The initial value is 1.
-See _cmnd(PrioritizeTextures).
-.TP
-_const(TEXTURE_RESIDENT)
-Returns the residence status of the target texture.
-If the value returned in _param3 is _const(TRUE), the texture is
-resident in texture memory.
-See _cmnd(AreTexturesResident).
-.SH NOTES
-_const(TEXTURE_PRIORITY) and _const(TEXTURE_RESIDENT) are
-available only if the GL version is 1.1 or greater.
-.P
-_const(TEXTURE_3D),
-_const(TEXTURE_MIN_LOD), _const(TEXTURE_MAX_LOD), _const(TEXTURE_BASE_LEVEL),
-_const(TEXTURE_MAX_LEVEL), and _const(TEXTURE_WRAP_R) are available only
-if the GL version is 1.2 or greater.
-.P
-If an error is generated,
-no change is made to the contents of _param3.
-.SH ERRORS
-_const(INVALID_ENUM) is generated if _param1 or _param2 is not an
-accepted value.
-.P
-_const(INVALID_OPERATION) is generated if _cmnd
-is executed between the execution of _cmnd(Begin)
-and the corresponding execution of _cmnd(End).
-.SH SEE ALSO
-_cmnd(AreTexturesResident),
-_cmnd(PrioritizeTextures),
-_cmnd(TexParameter)