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diff --git a/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/get.gl b/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/get.gl deleted file mode 100644 index 4928c44ab..000000000 --- a/nx-X11/extras/ogl-sample/main/doc/man/mangl/standard/get.gl +++ /dev/null @@ -1,1791 +0,0 @@ -_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,tbl|eqn)_C_ -_C_ eqn is automatically replaced with neqn for nroff -_header(Get,return the value or values of a selected parameter) -_names(GetBooleanv) -_names(GetDoublev) -_names(GetFloatv) -_names(GetIntegerv) -.EQ -delim $$ -.EN -.SH PARAMETERS -_phead(_param1) -Specifies the parameter value to be returned. -The symbolic constants in the list below are accepted. -_phead(_param2) -Returns the value or values of the specified parameter. -.SH DESCRIPTION -These four commands return values for simple state variables in GL. -_param1 is a symbolic constant indicating the state variable to be returned, -and _param2 is a pointer to an array of the indicated type in -which to place the returned data. -.P -Type conversion is performed if _param2 has a different type than -the state variable value being requested. -If _cmnd(GetBooleanv) is called, -a floating-point (or integer) value is converted to _const(FALSE) if -and only if it is 0.0 (or 0). -Otherwise, -it is converted to _const(TRUE). -If _cmnd(GetIntegerv) is called, boolean values are returned as -_const(TRUE) or _const(FALSE), and most floating-point values are -rounded to the nearest integer value. Floating-point colors and -normals, however, are returned with a linear mapping that maps 1.0 to -the most positive representable integer value, -and \-1.0 to the most negative representable integer value. -If _cmnd(GetFloatv) or _cmnd(GetDoublev) is called, -boolean values are returned as _const(TRUE) or _const(FALSE), -and integer values are converted to floating-point values. -.P -The following symbolic constants are accepted by _param1: -.TP 25 -_const(ACCUM_ALPHA_BITS) -_param2 returns one value, -the number of alpha bitplanes in the accumulation buffer. -.TP -_const(ACCUM_BLUE_BITS) -_param2 returns one value, -the number of blue bitplanes in the accumulation buffer. -.TP -_const(ACCUM_CLEAR_VALUE) -_param2 returns four values: -the red, green, blue, and alpha values used to clear the accumulation buffer. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer -value. The initial value is (0, 0, 0, 0). -See _cmnd(ClearAccum). -.TP -_const(ACCUM_GREEN_BITS) -_param2 returns one value, -the number of green bitplanes in the accumulation buffer. -.TP -_const(ACCUM_RED_BITS) -_param2 returns one value, -the number of red bitplanes in the accumulation buffer. -.TP -_arbconst(ACTIVE_TEXTURE) -_param2 returns a single value indicating the active multitexture unit. -The initial value is _arbconst(TEXTURE0). -See _cmnd(ActiveTextureARB). -.TP -_const(ALIASED_POINT_SIZE_RANGE) -_param2 returns two values, -the smallest and largest supported sizes for aliased points. -.TP -_const(ALIASED_LINE_WIDTH_RANGE) -_param2 returns two values, -the smallest and largest supported widths for aliased lines. -.TP -_const(ALPHA_BIAS) -_param2 returns one value, -the alpha bias factor used during pixel transfers. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(ALPHA_BITS) -_param2 returns one value, -the number of alpha bitplanes in each color buffer. -.TP -_const(ALPHA_SCALE) -_param2 returns one value, -the alpha scale factor used during pixel transfers. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(ALPHA_TEST) -_param2 returns a single boolean value indicating whether alpha testing -of fragments is enabled. The initial value is _const(FALSE). -See _cmnd(AlphaFunc). -.TP -_const(ALPHA_TEST_FUNC) -_param2 returns one value, -the symbolic name of the alpha test function. The initial value is -_const(ALWAYS). -See _cmnd(AlphaFunc). -.TP -_const(ALPHA_TEST_REF) -_param2 returns one value, -the reference value for the alpha test. The initial value is 0. -See _cmnd(AlphaFunc). -An integer value, -if requested, -is linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer value. -.TP -_const(ATTRIB_STACK_DEPTH) -_param2 returns one value, -the depth of the attribute stack. -If the stack is empty, -0 is returned. The initial value is 0. -See _cmnd(PushAttrib). -.TP -_const(AUTO_NORMAL) -_param2 returns a single boolean value indicating whether 2D map evaluation -automatically generates surface normals. The initial value is _const(FALSE). -See _cmnd(Map2). -.TP -_const(AUX_BUFFERS) -_param2 returns one value, -the number of auxiliary color buffers. The initial value is 0. -.TP -_const(BLEND) -_param2 returns a single boolean value indicating whether blending is -enabled. The initial value is _const(FALSE). -See _cmnd(BlendFunc). -.TP -_const(BLEND_COLOR) -_param2 returns four values, -the red, green, blue, and alpha values which are the components of -the blend color. -See _cmnd(BlendColor). -.TP -_const(BLEND_DST) -_param2 returns one value, -the symbolic constant identifying the destination blend -function. The initial value is _const(ZERO). -See _cmnd(BlendFunc). -.TP -_const(BLEND_EQUATION) -_param2 returns one value, a symbolic constant indicating whether -the blend equation is _const(FUNC_ADD), _const(MIN) or -_const(MAX). See _cmnd(BlendEquation). -.TP -_const(BLEND_SRC) -_param2 returns one value, -the symbolic constant identifying the source blend function. The initial -value is _const(ONE). -See _cmnd(BlendFunc). -.TP -_const(BLUE_BIAS) -_param2 returns one value, -the blue bias factor used during pixel transfers. The initial value is 0. -See -_cmnd(PixelTransfer). -.TP -_const(BLUE_BITS) -_param2 returns one value, -the number of blue bitplanes in each color buffer. -.TP -_const(BLUE_SCALE) -_param2 returns one value, -the blue scale factor used during pixel transfers. The initial value is 1. -See -_cmnd(PixelTransfer). -.TP -_arbconst(CLIENT_ACTIVE_TEXTURE) -_param2 returns a single integer value indicating the current client active -multitexture unit. The initial value is _arbconst(TEXTURE0). -See _cmnd(ClientActiveTextureARB). -.TP -_const(CLIENT_ATTRIB_STACK_DEPTH) -_param2 returns one value indicating the depth of the -attribute stack. The initial value is 0. -See _cmnd(PushClientAttrib). -.TP -_const(CLIP_PLANE)\f2i\fP -_param2 returns a single boolean value indicating whether the specified -clipping plane is enabled. The initial value is _const(FALSE). -See _cmnd(ClipPlane). -.TP -_const(COLOR_ARRAY) -_param2 returns a single boolean value indicating whether the color array is enabled. The initial value is _const(FALSE). -See _cmnd(ColorPointer). -.TP -_const(COLOR_ARRAY_SIZE) -_param2 returns one value, -the number of components per color in the color array. The initial value -is 4. See _cmnd(ColorPointer). -.TP -_const(COLOR_ARRAY_STRIDE) -_param2 returns one value, -the byte offset between consecutive colors in the color array. The initial -value is 0. -See _cmnd(ColorPointer). -.TP -_const(COLOR_ARRAY_TYPE) -_param2 returns one value, -the data type of each component in the color array. The initial value -is _const(FLOAT). See _cmnd(ColorPointer). -.TP -_const(COLOR_CLEAR_VALUE) -_param2 returns four values: -the red, green, blue, and alpha values used to clear the color buffers. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer -value. The initial value is (0, 0, 0, 0). -See _cmnd(ClearColor). -.TP -_const(COLOR_LOGIC_OP) -_param2 returns a single boolean value indicating whether a fragment's -RGBA color values are merged into the framebuffer using a logical -operation. The initial value is _const(FALSE). -See _cmnd(LogicOp). -.TP -_const(COLOR_MATERIAL) -_param2 returns a single boolean value indicating whether one or more -material parameters are tracking the current color. The initial value -is _const(FALSE). -See _cmnd(ColorMaterial). -.TP -_const(COLOR_MATERIAL_FACE) -_param2 returns one value, -a symbolic constant indicating which materials have a parameter that is -tracking the current color. The initial value is _const(FRONT_AND_BACK). -See _cmnd(ColorMaterial). -.TP -_const(COLOR_MATERIAL_PARAMETER) -_param2 returns one value, -a symbolic constant indicating which material parameters are -tracking the current color. The initial value is -_const(AMBIENT_AND_DIFFUSE). -See _cmnd(ColorMaterial). -.TP -_const(COLOR_MATRIX) -_param2 returns sixteen values: -the color matrix on the top of the color matrix stack. Initially -this matrix is the identity matrix. See _cmnd(PushMatrix). -.TP -_const(COLOR_MATRIX_STACK_DEPTH) -_param2 returns one value, -the maximum supported depth of the projection matrix stack. The value must -be at least 2. -See _cmnd(PushMatrix). -.TP -_const(COLOR_TABLE) -_param2 returns a single boolean value indicating whether the color table -lookup is enabled. -See _cmnd(ColorTable). -.TP -_const(COLOR_WRITEMASK) -_param2 returns four boolean values: -the red, green, blue, and alpha write enables for the color -buffers. The initial value is (_const(TRUE), _const(TRUE), -_const(TRUE), _const(TRUE)). -See _cmnd(ColorMask). -.TP -_const(CONVOLUTION_1D) -_param2 returns a single boolean value indicating whether 1D convolution -is enabled. The initial value is _const(FALSE). -See _cmnd(ConvolutionFilter1D). -.TP -_const(CONVOLUTION_2D) -_param2 returns a single boolean value indicating whether 2D convolution -is enabled. The initial value is _const(FALSE). -See _cmnd(ConvolutionFilter2D). -.TP -_const(CULL_FACE) -_param2 returns a single boolean value indicating whether polygon culling -is enabled. The initial value is _const(FALSE). -See _cmnd(CullFace). -.TP -_const(CULL_FACE_MODE) -_param2 returns one value, -a symbolic constant indicating which polygon faces are to be -culled. The initial value is _const(BACK). -See _cmnd(CullFace). -.TP -_const(CURRENT_COLOR) -_param2 returns four values: -the red, green, blue, and alpha values of the current color. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer value. -See _cmnd(Color). The initial value is (1, 1, 1, 1). -.TP -_const(CURRENT_INDEX) -_param2 returns one value, -the current color index. The initial value is 1. -See _cmnd(Index). -.TP -_const(CURRENT_NORMAL) -_param2 returns three values: -the \f2x\fP, \f2y\fP, and \f2z\fP values of the current normal. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer value. -The initial value is (0, 0, 1). See _cmnd(Normal). -.TP -_const(CURRENT_RASTER_COLOR) -_param2 returns four values: -the red, green, blue, and alpha values of the current raster position. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer -value. The initial value is (1, 1, 1, 1). -See _cmnd(RasterPos). -.TP -_const(CURRENT_RASTER_DISTANCE) -_param2 returns one value, -the distance from the eye to the current raster position. The initial -value is 0. -See _cmnd(RasterPos). -.TP -_const(CURRENT_RASTER_INDEX) -_param2 returns one value, -the color index of the current raster position. The initial value is 1. -See _cmnd(RasterPos). -.TP -_const(CURRENT_RASTER_POSITION) -_param2 returns four values: -the \f2x\fP, \f2y\fP, \f2z\fP, and \f2w\fP components of the current -raster position. -\f2x\fP, \f2y\fP, and \f2z\fP are in window coordinates, -and \f2w\fP is in clip coordinates. The initial value is (0, 0, 0, 1). -See _cmnd(RasterPos). -.TP -_const(CURRENT_RASTER_POSITION_VALID) -_param2 returns a single boolean value indicating whether the current -raster position is valid. The initial value is _const(TRUE). -See _cmnd(RasterPos). -.TP -_const(CURRENT_RASTER_TEXTURE_COORDS) -_param2 returns four values: -the \f2s\fP, \f2t\fP, \f2r\fP, and \f2q\fP -current raster texture coordinates. The initial value is (0, 0, 0, 1). -See _cmnd(RasterPos) and _cmnd(TexCoord). -.TP -_const(CURRENT_TEXTURE_COORDS) -_param2 returns four values: -the \f2s\fP, \f2t\fP, \f2r\fP, and \f2q\fP current texture -coordinates. The initial value is (0, 0, 0, 1). -See -_cmnd(TexCoord). -.TP -_const(DEPTH_BIAS) -_param2 returns one value, -the depth bias factor used during pixel transfers. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(DEPTH_BITS) -_param2 returns one value, -the number of bitplanes in the depth buffer. -.TP -_const(DEPTH_CLEAR_VALUE) -_param2 returns one value, -the value that is used to clear the depth buffer. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer -value. The initial value is 1. -See _cmnd(ClearDepth). -.TP -_const(DEPTH_FUNC) -_param2 returns one value, -the symbolic constant that indicates the depth comparison -function. The initial value is _const(LESS). -See _cmnd(DepthFunc). -.TP -_const(DEPTH_RANGE) -_param2 returns two values: -the near and far mapping limits for the depth buffer. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer -value. The initial value is (0, 1). -See _cmnd(DepthRange). -.TP -_const(DEPTH_SCALE) -_param2 returns one value, -the depth scale factor used during pixel transfers. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(DEPTH_TEST) -_param2 returns a single boolean value indicating whether depth testing -of fragments is enabled. The initial value is _const(FALSE). -See _cmnd(DepthFunc) and _cmnd(DepthRange). -.TP -_const(DEPTH_WRITEMASK) -_param2 returns a single boolean value indicating if the depth buffer -is enabled for writing. The initial value is _const(TRUE). -See _cmnd(DepthMask). -.TP -_const(DITHER) -_param2 returns a single boolean value indicating whether dithering of -fragment colors and indices is enabled. The initial value is _const(TRUE). -.TP -_const(DOUBLEBUFFER) -_param2 returns a single boolean value indicating whether double buffering -is supported. -.TP -_const(DRAW_BUFFER) -_param2 returns one value, -a symbolic constant indicating which buffers are being drawn to. -See _cmnd(DrawBuffer). The initial value is _const(BACK) if there -are back buffers, otherwise it is _const(FRONT). -.TP -_const(EDGE_FLAG) -_param2 returns a single boolean value indicating whether the current -edge flag is _const(TRUE) or _const(FALSE). The initial value is _const(TRUE). -See _cmnd(EdgeFlag). -.TP -_const(EDGE_FLAG_ARRAY) -_param2 returns a single boolean value indicating whether the edge -flag array is enabled. The initial value is _const(FALSE). -See _cmnd(EdgeFlagPointer). -.TP -_const(EDGE_FLAG_ARRAY_STRIDE) -_param2 returns one value, -the byte offset between consecutive edge flags in the edge flag -array. The initial value is 0. -See _cmnd(EdgeFlagPointer). -.TP -_const(FEEDBACK_BUFFER_SIZE) -_param2 returns one value, the size of the feedback buffer. See -_cmnd(FeedbackBuffer). -.TP -_const(FEEDBACK_BUFFER_TYPE) -_param2 returns one value, the type of the feedback buffer. See -_cmnd(FeedbackBuffer). -.TP -_const(FOG) -_param2 returns a single boolean value indicating whether fogging is -enabled. The initial value is _const(FALSE). -See _cmnd(Fog). -.TP -_const(FOG_COLOR) -_param2 returns four values: -the red, green, blue, and alpha components of the fog color. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer -value. The initial value is (0, 0, 0, 0). -See _cmnd(Fog). -.TP -_const(FOG_DENSITY) -_param2 returns one value, -the fog density parameter. The initial value is 1. -See _cmnd(Fog). -.TP -_const(FOG_END) -_param2 returns one value, -the end factor for the linear fog equation. The initial value is 1. -See _cmnd(Fog). -.TP -_const(FOG_HINT) -_param2 returns one value, -a symbolic constant indicating the mode of the fog hint. The initial value -is _const(DONT_CARE). -See _cmnd(Hint). -.TP -_const(FOG_INDEX) -_param2 returns one value, -the fog color index. The initial value is 0. -See _cmnd(Fog). -.TP -_const(FOG_MODE) -_param2 returns one value, -a symbolic constant indicating which fog equation is selected. The initial -value is _const(EXP). -See _cmnd(Fog). -.TP -_const(FOG_START) -_param2 returns one value, -the start factor for the linear fog equation. The initial value is 0. -See _cmnd(Fog). -.TP -_const(FRONT_FACE) -_param2 returns one value, -a symbolic constant indicating whether clockwise or counterclockwise -polygon winding is treated as front-facing. The initial value is -_const(CCW). -See _cmnd(FrontFace). -.TP -_const(GREEN_BIAS) -_param2 returns one value, -the green bias factor used during pixel transfers. The initial value is 0. -.TP -_const(GREEN_BITS) -_param2 returns one value, -the number of green bitplanes in each color buffer. -.TP -_const(GREEN_SCALE) -_param2 returns one value, -the green scale factor used during pixel transfers. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(HISTOGRAM) -_param2 returns a single boolean value indicating whether histogram is -enabled. The initial value is _const(FALSE). -See _cmnd(Histogram). -.TP -_const(INDEX_ARRAY) -_param2 returns a single boolean value indicating whether the color -index array is enabled. The initial value is _const(FALSE). -See _cmnd(IndexPointer). -.TP -_const(INDEX_ARRAY_STRIDE) -_param2 returns one value, -the byte offset between consecutive color indexes in the color index -array. The initial value is 0. -See _cmnd(IndexPointer). -.TP -_const(INDEX_ARRAY_TYPE) -_param2 returns one value, -the data type of indexes in the color index array. The initial value is -_const(FLOAT). -See _cmnd(IndexPointer). -.TP -_const(INDEX_BITS) -_param2 returns one value, -the number of bitplanes in each color index buffer. -.TP -_const(INDEX_CLEAR_VALUE) -_param2 returns one value, -the color index used to clear the color index buffers. The initial value -is 0. -See _cmnd(ClearIndex). -.TP -_const(INDEX_LOGIC_OP) -_param2 returns a single boolean value indicating whether a fragment's index -values are merged into the framebuffer using a logical -operation. The initial value is _const(FALSE). -See _cmnd(LogicOp). -.TP -_const(INDEX_MODE) -_param2 returns a single boolean value indicating whether the GL is in -color index mode (_const(TRUE)) or RGBA mode (_const(FALSE)). -.TP -_const(INDEX_OFFSET) -_param2 returns one value, -the offset added to color and stencil indices during pixel -transfers. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(INDEX_SHIFT) -_param2 returns one value, -the amount that color and stencil indices are shifted during pixel -transfers. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(INDEX_WRITEMASK) -_param2 returns one value, -a mask indicating which bitplanes of each color index buffer can be -written. The initial value is all 1's. -See _cmnd(IndexMask). -.TP -_const(LIGHT)\f2i\fP -_param2 returns a single boolean value indicating whether the specified -light is enabled. The initial value is _const(FALSE). -See _cmnd(Light) and _cmnd(LightModel). -.TP -_const(LIGHTING) -_param2 returns a single boolean value indicating whether lighting is -enabled. The initial value is _const(FALSE). -See _cmnd(LightModel). -.TP -_const(LIGHT_MODEL_AMBIENT) -_param2 returns four values: -the red, green, blue, and alpha components of the ambient intensity of -the entire scene. -Integer values, -if requested, -are linearly mapped from the internal floating-point representation such -that 1.0 returns the most positive representable integer value, -and \-1.0 returns the most negative representable integer -value. The initial value is (0.2, 0.2, 0.2, 1.0). -See _cmnd(LightModel). -.TP -_const(LIGHT_MODEL_COLOR_CONTROL) -_param2 returns single enumerated value indicating whether specular -reflection calculations are separated from normal lighting computations. -The initial value is _const(SINGLE_COLOR). -.TP -_const(LIGHT_MODEL_LOCAL_VIEWER) -_param2 returns a single boolean value indicating whether specular reflection -calculations treat the viewer as being local to the scene. The initial -value is _const(FALSE). -See _cmnd(LightModel). -.TP -_const(LIGHT_MODEL_TWO_SIDE) -_param2 returns a single boolean value indicating whether separate materials -are used to compute lighting for front- and back-facing -polygons. The initial value is _const(FALSE). -See _cmnd(LightModel). -.TP -_const(LINE_SMOOTH) -_param2 returns a single boolean value indicating whether antialiasing of -lines is enabled. The initial value is _const(FALSE). -See _cmnd(LineWidth). -.TP -_const(LINE_SMOOTH_HINT) -_param2 returns one value, -a symbolic constant indicating the mode of the line antialiasing -hint. The initial value is _const(DONT_CARE). -See _cmnd(Hint). -.TP -_const(LINE_STIPPLE) -_param2 returns a single boolean value indicating whether stippling of lines -is enabled. The initial value is _const(FALSE). -See _cmnd(LineStipple). -.TP -_const(LINE_STIPPLE_PATTERN) -_param2 returns one value, -the 16-bit line stipple pattern. The initial value is all 1's. -See _cmnd(LineStipple). -.TP -_const(LINE_STIPPLE_REPEAT) -_param2 returns one value, -the line stipple repeat factor. The initial value is 1. -See _cmnd(LineStipple). -.TP -_const(LINE_WIDTH) -_param2 returns one value, -the line width as specified with _cmnd(LineWidth). The initial value is -1. -.TP -_const(LINE_WIDTH_GRANULARITY) -_param2 returns one value, -the width difference between adjacent supported widths for antialiased lines. -See _cmnd(LineWidth). -.TP -_const(LINE_WIDTH_RANGE) -_param2 returns two values: -the smallest and largest supported widths for antialiased -lines. -See _cmnd(LineWidth). -.TP -_const(LIST_BASE) -_param2 returns one value, -the base offset added to all names in arrays presented to -_cmnd(CallLists). The initial value is 0. -See _cmnd(ListBase). -.TP -_const(LIST_INDEX) -_param2 returns one value, -the name of the display list currently under construction. -0 is returned if no display list is currently under -construction. The initial value is 0. -See _cmnd(NewList). -.TP -_const(LIST_MODE) -_param2 returns one value, -a symbolic constant indicating the construction mode of the display list -currently under construction. The initial value is 0. -See _cmnd(NewList). -.TP -_const(LOGIC_OP_MODE) -_param2 returns one value, -a symbolic constant indicating the selected logic operation -mode. The initial value is _const(COPY). -See _cmnd(LogicOp). -.TP -_const(MAP1_COLOR_4) -_param2 returns a single boolean value indicating whether -1D evaluation generates colors. The initial value is _const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_GRID_DOMAIN) -_param2 returns two values: -the endpoints of the 1D map's grid domain. The initial value is (0, 1). -See _cmnd(MapGrid). -.TP -_const(MAP1_GRID_SEGMENTS) -_param2 returns one value, -the number of partitions in the 1D map's grid domain. The initial value -is 1. -See _cmnd(MapGrid). -.TP -_const(MAP1_INDEX) -_param2 returns a single boolean value indicating whether -1D evaluation generates color indices. The initial value is _const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_NORMAL) -_param2 returns a single boolean value indicating whether -1D evaluation generates normals. The initial value is _const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_TEXTURE_COORD_1) -_param2 returns a single boolean value indicating whether -1D evaluation generates 1D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_TEXTURE_COORD_2) -_param2 returns a single boolean value indicating whether -1D evaluation generates 2D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_TEXTURE_COORD_3) -_param2 returns a single boolean value indicating whether -1D evaluation generates 3D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_TEXTURE_COORD_4) -_param2 returns a single boolean value indicating whether -1D evaluation generates 4D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_VERTEX_3) -_param2 returns a single boolean value indicating whether -1D evaluation generates 3D vertex coordinates. The initial value is -_const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP1_VERTEX_4) -_param2 returns a single boolean value indicating whether -1D evaluation generates 4D vertex coordinates. The initial value is -_const(FALSE). -See _cmnd(Map1). -.TP -_const(MAP2_COLOR_4) -_param2 returns a single boolean value indicating whether -2D evaluation generates colors. The initial value is _const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_GRID_DOMAIN) -_param2 returns four values: -the endpoints of the 2D map's $i$ and $j$ grid domains. The initial value -is (0,1; 0,1). -See _cmnd(MapGrid). -.TP -_const(MAP2_GRID_SEGMENTS) -_param2 returns two values: -the number of partitions in the 2D map's $i$ and $j$ grid -domains. The initial value is (1,1). -See _cmnd(MapGrid). -.TP -_const(MAP2_INDEX) -_param2 returns a single boolean value indicating whether -2D evaluation generates color indices. The initial value is _const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_NORMAL) -_param2 returns a single boolean value indicating whether -2D evaluation generates normals. The initial value is _const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_TEXTURE_COORD_1) -_param2 returns a single boolean value indicating whether -2D evaluation generates 1D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_TEXTURE_COORD_2) -_param2 returns a single boolean value indicating whether -2D evaluation generates 2D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_TEXTURE_COORD_3) -_param2 returns a single boolean value indicating whether -2D evaluation generates 3D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_TEXTURE_COORD_4) -_param2 returns a single boolean value indicating whether -2D evaluation generates 4D texture coordinates. The initial value is -_const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_VERTEX_3) -_param2 returns a single boolean value indicating whether -2D evaluation generates 3D vertex coordinates. The initial value is -_const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP2_VERTEX_4) -_param2 returns a single boolean value indicating whether -2D evaluation generates 4D vertex coordinates. The initial value is -_const(FALSE). -See _cmnd(Map2). -.TP -_const(MAP_COLOR) -_param2 returns a single boolean value indicating if colors and -color indices are to be replaced by table lookup during pixel -transfers. The initial value is _const(FALSE). -See _cmnd(PixelTransfer). -.TP -_const(MAP_STENCIL) -_param2 returns a single boolean value indicating if stencil indices -are to be replaced by table lookup during pixel transfers. The initial -value is _const(FALSE). -See _cmnd(PixelTransfer). -.TP -_const(MATRIX_MODE) -_param2 returns one value, -a symbolic constant indicating which matrix stack is currently the -target of all matrix operations. The initial value is _const(MODELVIEW). -See _cmnd(MatrixMode). -.TP -_const(MAX_3D_TEXTURE_SIZE) -_param2 returns one value, -a rough estimate of the largest 3D texture that the GL can handle. -If the GL version is 1.2 or greater, use -_const(PROXY_TEXTURE_3D) to determine if a texture is too large. -See _cmnd(TexImage3D). -.TP -_const(MAX_CLIENT_ATTRIB_STACK_DEPTH) -_param2 returns one value indicating the maximum supported depth -of the client attribute stack. -See _cmnd(PushClientAttrib). -.TP -_const(MAX_ATTRIB_STACK_DEPTH) -_param2 returns one value, -the maximum supported depth of the attribute stack. The value must be at least 16. -See _cmnd(PushAttrib). -.TP -_const(MAX_CLIP_PLANES) -_param2 returns one value, -the maximum number of application-defined clipping planes. The value must be at least 6. -See _cmnd(ClipPlane). -.TP -_const(MAX_COLOR_MATRIX_STACK_DEPTH) -_param2 returns one value, the maximum supported depth of the color matrix -stack. The value must be at least 2. -See _cmnd(PushMatrix). -.TP -_const(MAX_ELEMENTS_INDICES) -_param2 returns one value, -the recommended maximum number of vertex array indices. See _cmnd(DrawRangeElements). -.TP -_const(MAX_ELEMENTS_VERTICES) -_param2 returns one value, -the recommended maximum number of vertex array vertices. See _cmnd(DrawRangeElements). -.TP -_const(MAX_EVAL_ORDER) -_param2 returns one value, -the maximum equation order supported by 1D and 2D -evaluators. The value must be at least 8. -See _cmnd(Map1) and _cmnd(Map2). -.TP -_const(MAX_LIGHTS) -_param2 returns one value, -the maximum number of lights. The value must be at least 8. -See _cmnd(Light). -.TP -_const(MAX_LIST_NESTING) -_param2 returns one value, -the maximum recursion depth allowed during display-list -traversal. The value must be at least 64. -See _cmnd(CallList). -.TP -_const(MAX_MODELVIEW_STACK_DEPTH) -_param2 returns one value, -the maximum supported depth of the modelview matrix stack. The value must -be at least 32. -See _cmnd(PushMatrix). -.TP -_const(MAX_NAME_STACK_DEPTH) -_param2 returns one value, -the maximum supported depth of the selection name stack. The value must be at least 64. -See _cmnd(PushName). -.TP -_const(MAX_PIXEL_MAP_TABLE) -_param2 returns one value, -the maximum supported size of a _cmnd(PixelMap) lookup table. -The value must be at least 32. -See _cmnd(PixelMap). -.TP -_const(MAX_PROJECTION_STACK_DEPTH) -_param2 returns one value, -the maximum supported depth of the projection matrix stack. The value must be at least 2. -See _cmnd(PushMatrix). -.TP -_const(MAX_TEXTURE_SIZE) -_param2 returns one value. -The value gives a rough estimate of the largest texture that -the GL can handle. -If the GL version is 1.1 or greater, use -_const(PROXY_TEXTURE_1D) or _const(PROXY_TEXTURE_2D) -to determine if a texture is too large. -See _cmnd(TexImage1D) and _cmnd(TexImage2D). -.TP -_const(MAX_TEXTURE_STACK_DEPTH) -_param2 returns one value, -the maximum supported depth of the texture matrix stack. The value must be at least 2. -See _cmnd(PushMatrix). -.TP -_arbconst(MAX_TEXTURE_UNITS) -_param2 returns a single value indicating the number of texture units -supported. The value must be at least 1. -See _cmnd(ActiveTextureARB). -.TP -_const(MAX_VIEWPORT_DIMS) -_param2 returns two values: -the maximum supported width and height of the viewport. -These must be at least as large as the visible dimensions of the display -being rendered to. -See _cmnd(Viewport). -.TP -_const(MINMAX) -_param2 returns a single boolean value indicating whether pixel minmax -values are computed. The initial value is _const(FALSE). -See _cmnd(Minmax). -.TP -_const(MODELVIEW_MATRIX) -_param2 returns sixteen values: -the modelview matrix on the top of the modelview matrix stack. Initially -this matrix is the identity matrix. See _cmnd(PushMatrix). -.TP -_const(MODELVIEW_STACK_DEPTH) -_param2 returns one value, -the number of matrices on the modelview matrix stack. -The initial value is 1. -See _cmnd(PushMatrix). -.TP -_const(NAME_STACK_DEPTH) -_param2 returns one value, -the number of names on the selection name stack. The initial value is 0. -See _cmnd(PushName). -.TP -_const(NORMAL_ARRAY) -_param2 returns a single boolean value, indicating whether the normal -array is enabled. The initial value is _const(FALSE). -See _cmnd(NormalPointer). -.TP -_const(NORMAL_ARRAY_STRIDE) -_param2 returns one value, -the byte offset between consecutive normals in the normal -array. The initial value is 0. -See _cmnd(NormalPointer). -.TP -_const(NORMAL_ARRAY_TYPE) -_param2 returns one value, -the data type of each coordinate in the normal array. The initial value is -_const(FLOAT). -See _cmnd(NormalPointer). -.TP -_const(NORMALIZE) -_param2 returns a single boolean value indicating whether normals are -automatically scaled to unit length after they have been transformed to -eye coordinates. The initial value is _const(FALSE). -See _cmnd(Normal). -.TP -_const(PACK_ALIGNMENT) -_param2 returns one value, -the byte alignment used for writing pixel data to memory. The initial -value is 4. -See _cmnd(PixelStore). -.TP -_const(PACK_IMAGE_HEIGHT) -_param2 returns one value, -the image height used for writing pixel data to memory. The initial -value is 0. -See _cmnd(PixelStore). -.TP -_const(PACK_LSB_FIRST) -_param2 returns a single boolean value indicating whether single-bit -pixels being written to memory are written first to the least significant -bit of each unsigned byte. The initial value is _const(FALSE). -See _cmnd(PixelStore). -.TP -_const(PACK_ROW_LENGTH) -_param2 returns one value, -the row length used for writing pixel data to memory. The initial value is -0. -See _cmnd(PixelStore). -.TP -_const(PACK_SKIP_IMAGES) -_param2 returns one value, -the number of pixel images skipped before the first pixel is written -into memory. The initial value is 0. -See _cmnd(PixelStore). -.TP -_const(PACK_SKIP_PIXELS) -_param2 returns one value, -the number of pixel locations skipped before the first pixel is written -into memory. The initial value is 0. -See _cmnd(PixelStore). -.TP -_const(PACK_SKIP_ROWS) -_param2 returns one value, -the number of rows of pixel locations skipped before the first pixel is written -into memory. The initial value is 0. -See _cmnd(PixelStore). -.TP -_const(PACK_SWAP_BYTES) -_param2 returns a single boolean value indicating whether the bytes of -two-byte and four-byte pixel indices and components are swapped before being -written to memory. The initial value is _const(FALSE). -See _cmnd(PixelStore). -.TP -_const(PERSPECTIVE_CORRECTION_HINT) -_param2 returns one value, -a symbolic constant indicating the mode of the perspective correction -hint. The initial value is _const(DONT_CARE). -See _cmnd(Hint). -.TP -_const(PIXEL_MAP_A_TO_A_SIZE) -_param2 returns one value, -the size of the alpha-to-alpha pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_B_TO_B_SIZE) -_param2 returns one value, -the size of the blue-to-blue pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_G_TO_G_SIZE) -_param2 returns one value, -the size of the green-to-green pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_I_TO_A_SIZE) -_param2 returns one value, -the size of the index-to-alpha pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_I_TO_B_SIZE) -_param2 returns one value, -the size of the index-to-blue pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_I_TO_G_SIZE) -_param2 returns one value, -the size of the index-to-green pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_I_TO_I_SIZE) -_param2 returns one value, -the size of the index-to-index pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_I_TO_R_SIZE) -_param2 returns one value, -the size of the index-to-red pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_R_TO_R_SIZE) -_param2 returns one value, -the size of the red-to-red pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(PIXEL_MAP_S_TO_S_SIZE) -_param2 returns one value, -the size of the stencil-to-stencil pixel translation table. -The initial value is 1. -See _cmnd(PixelMap). -.TP -_const(POINT_SIZE) -_param2 returns one value, -the point size as specified by _cmnd(PointSize). The initial value is 1. -.TP -_const(POINT_SIZE_GRANULARITY) -_param2 returns one value, -the size difference between adjacent supported sizes for antialiased points. -See _cmnd(PointSize). -.TP -_const(POINT_SIZE_RANGE) -_param2 returns two values: -the smallest and largest supported sizes for antialiased -points. The smallest size must be at most 1, and the largest size must -be at least 1. -See _cmnd(PointSize). -.TP -_const(POINT_SMOOTH) -_param2 returns a single boolean value indicating whether antialiasing of -points is enabled. The initial value is _const(FALSE). -See _cmnd(PointSize). -.TP -_const(POINT_SMOOTH_HINT) -_param2 returns one value, -a symbolic constant indicating the mode of the point antialiasing -hint. The initial value is _const(DONT_CARE). -See _cmnd(Hint). -.TP -_const(POLYGON_MODE) -_param2 returns two values: -symbolic constants indicating whether front-facing and back-facing polygons -are rasterized as points, lines, or filled polygons. The initial value is -_const(FILL). -See _cmnd(PolygonMode). -.TP -_const(POLYGON_OFFSET_FACTOR) -_param2 returns one value, -the scaling factor used to determine the variable offset that is added -to the depth value of each fragment generated when a polygon is -rasterized. The initial value is 0. -See _cmnd(PolygonOffset). -.TP -_const(POLYGON_OFFSET_UNITS) -_param2 returns one value. -This value is multiplied by an implementation-specific value and then -added to the depth value of each fragment -generated when a polygon is rasterized. The initial value is 0. -See _cmnd(PolygonOffset). -.TP -_const(POLYGON_OFFSET_FILL) -_param2 returns a single boolean value indicating whether polygon offset -is enabled for polygons in fill mode. The initial value is _const(FALSE). -See _cmnd(PolygonOffset). -.TP -_const(POLYGON_OFFSET_LINE) -_param2 returns a single boolean value indicating whether polygon offset -is enabled for polygons in line mode. The initial value is _const(FALSE). -See _cmnd(PolygonOffset). -.TP -_const(POLYGON_OFFSET_POINT) -_param2 returns a single boolean value indicating whether polygon offset -is enabled for polygons in point mode. The initial value is _const(FALSE). -See _cmnd(PolygonOffset). -.TP -_const(POLYGON_SMOOTH) -_param2 returns a single boolean value indicating whether antialiasing of -polygons is enabled. The initial value is _const(FALSE). -See _cmnd(PolygonMode). -.TP -_const(POLYGON_SMOOTH_HINT) -_param2 returns one value, -a symbolic constant indicating the mode of the polygon antialiasing -hint. The initial value is _const(DONT_CARE). -See _cmnd(Hint). -.TP -_const(POLYGON_STIPPLE) -_param2 returns a single boolean value indicating whether polygon -stippling is enabled. The initial value is _const(FALSE). -See _cmnd(PolygonStipple). -.TP -_const(POST_COLOR_MATRIX_COLOR_TABLE) -_param2 returns a single boolean value indicating whether post color -matrix transformation lookup is enabled. The initial value is -_const(FALSE). -See _cmnd(ColorTable). -.TP -_const(POST_COLOR_MATRIX_RED_BIAS) -_param2 returns one value, the red bias factor applied to RGBA fragments -after color matrix transformations. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(POST_COLOR_MATRIX_GREEN_BIAS) -_param2 returns one value, the green bias factor applied to RGBA fragments -after color matrix transformations. The initial value is 0. -See _cmnd(PixelTransfer) -.TP -_const(POST_COLOR_MATRIX_BLUE_BIAS) -_param2 returns one value, the blue bias factor applied to RGBA fragments -after color matrix transformations. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(POST_COLOR_MATRIX_ALPHA_BIAS) -_param2 returns one value, the alpha bias factor applied to RGBA fragments -after color matrix transformations. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(POST_COLOR_MATRIX_RED_SCALE) -_param2 returns one value, the red scale factor applied to RGBA fragments -after color matrix transformations. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(POST_COLOR_MATRIX_GREEN_SCALE) -_param2 returns one value, the green scale factor applied to RGBA fragments -after color matrix transformations. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(POST_COLOR_MATRIX_BLUE_SCALE) -_param2 returns one value, the blue scale factor applied to RGBA fragments -after color matrix transformations. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(POST_COLOR_MATRIX_ALPHA_SCALE) -_param2 returns one value, the alpha scale factor applied to RGBA fragments -after color matrix transformations. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_COLOR_TABLE) -_param2 returns a single boolean value indicating whether post convolution -lookup is enabled. The initial value is _const(FALSE). -See _cmnd(ColorTable). -.TP -_const(POST_CONVOLUTION_RED_BIAS) -_param2 returns one value, the red bias factor applied to RGBA fragments -after convolution. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_GREEN_BIAS) -_param2 returns one value, the green bias factor applied to RGBA fragments -after convolution. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_BLUE_BIAS) -_param2 returns one value, the blue bias factor applied to RGBA fragments -after convolution. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_ALPHA_BIAS) -_param2 returns one value, the alpha bias factor applied to RGBA fragments -after convolution. The initial value is 0. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_RED_SCALE) -_param2 returns one value, the red scale factor applied to RGBA fragments -after convolution. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_GREEN_SCALE) -_param2 returns one value, the green scale factor applied to RGBA fragments -after convolution. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_BLUE_SCALE) -_param2 returns one value, the blue scale factor applied to RGBA fragments -after convolution. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(POST_CONVOLUTION_ALPHA_SCALE) -_param2 returns one value, the alpha scale factor applied to RGBA fragments -after convolution. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(PROJECTION_MATRIX) -_param2 returns sixteen values: -the projection matrix on the top of the projection matrix -stack. Initially this matrix is the identity matrix. -See _cmnd(PushMatrix). -.TP -_const(PROJECTION_STACK_DEPTH) -_param2 returns one value, -the number of matrices on the projection matrix stack. -The initial value is 1. -See _cmnd(PushMatrix). -.TP -_const(READ_BUFFER) -_param2 returns one value, -a symbolic constant indicating which color buffer is selected for -reading. The initial value is _const(BACK) if there is a back buffer, -otherwise it is _const(FRONT). -See -_cmnd(ReadPixels) and _cmnd(Accum). -.TP -_const(RED_BIAS) -_param2 returns one value, -the red bias factor used during pixel transfers. The initial value is 0. -.TP -_const(RED_BITS) -_param2 returns one value, -the number of red bitplanes in each color buffer. -.TP -_const(RED_SCALE) -_param2 returns one value, -the red scale factor used during pixel transfers. The initial value is 1. -See _cmnd(PixelTransfer). -.TP -_const(RENDER_MODE) -_param2 returns one value, -a symbolic constant indicating whether the GL is in render, -select, -or feedback mode. The initial value is _const(RENDER). -See _cmnd(RenderMode). -.TP -_const(RESCALE_NORMAL) -_param2 returns single boolean value -indicating whether normal rescaling is enabled. -See _cmnd(Enable). -.TP -_const(RGBA_MODE) -_param2 returns a single boolean value indicating whether the GL is in RGBA -mode (true) or color index mode (false). -See _cmnd(Color). -.TP -_const(SCISSOR_BOX) -_param2 returns four values: -the $x$ and $y$ window coordinates of the scissor box, -followed by its width and height. -Initially the $x$ and $y$ window coordinates are both 0 and the -width and height are set to the size of the window. -See _cmnd(Scissor). -.TP -_const(SCISSOR_TEST) -_param2 returns a single boolean value indicating whether scissoring is -enabled. The initial value is _const(FALSE). -See _cmnd(Scissor). -.TP -_const(SELECTION_BUFFER_SIZE) -_param2 return one value, -the size of the selection buffer. -See _cmnd(SelectBuffer). -.TP -_const(SEPARABLE_2D) -_param2 returns a single boolean value indicating whether 2D separable -convolution is enabled. The initial value is _const(FALSE). -See _cmnd(SeparableFilter2D). -.TP -_const(SHADE_MODEL) -_param2 returns one value, -a symbolic constant indicating whether the shading mode is flat or -smooth. The initial value is _const(SMOOTH). -See _cmnd(ShadeModel). -.TP -_const(SMOOTH_LINE_WIDTH_RANGE) -_param2 returns two values, -the smallest and largest supported widths for antialiased lines. -See _cmnd(LineWidth). -.TP -_const(SMOOTH_LINE_WIDTH_GRANULARITY) -_param2 returns one value, -the granularity of widths for antialiased lines. -See _cmnd(LineWidth). -.TP -_const(SMOOTH_POINT_SIZE_RANGE) -_param2 returns two values, -the smallest and largest supported widths for antialiased points. -See _cmnd(PointSize). -.TP -_const(SMOOTH_POINT_SIZE_GRANULARITY) -_param2 returns one value, -the granularity of sizes for antialiased points. -See _cmnd(PointSize). -.TP -_const(STENCIL_BITS) -_param2 returns one value, -the number of bitplanes in the stencil buffer. -.TP -_const(STENCIL_CLEAR_VALUE) -_param2 returns one value, -the index to which the stencil bitplanes are cleared. The initial value is -0. -See _cmnd(ClearStencil). -.TP -_const(STENCIL_FAIL) -_param2 returns one value, -a symbolic constant indicating what action is taken when the stencil -test fails. The initial value is _const(KEEP). -See _cmnd(StencilOp). -.TP -_const(STENCIL_FUNC) -_param2 returns one value, -a symbolic constant indicating what function is used to compare the -stencil reference value with the stencil buffer value. The initial value -is _const(ALWAYS). -See _cmnd(StencilFunc). -.TP -_const(STENCIL_PASS_DEPTH_FAIL) -_param2 returns one value, -a symbolic constant indicating what action is taken when the stencil -test passes, -but the depth test fails. The initial value is _const(KEEP). -See _cmnd(StencilOp). -.TP -_const(STENCIL_PASS_DEPTH_PASS) -_param2 returns one value, -a symbolic constant indicating what action is taken when the stencil -test passes and the depth test passes. The initial value is _const(KEEP). -See _cmnd(StencilOp). -.TP -_const(STENCIL_REF) -_param2 returns one value, -the reference value that is compared with the contents of the stencil -buffer. The initial value is 0. -See _cmnd(StencilFunc). -.TP -_const(STENCIL_TEST) -_param2 returns a single boolean value indicating whether stencil testing -of fragments is enabled. The initial value is _const(FALSE). -See _cmnd(StencilFunc) and _cmnd(StencilOp). -.TP -_const(STENCIL_VALUE_MASK) -_param2 returns one value, -the mask that is used to mask both the stencil reference value and the -stencil buffer value before they are compared. The initial value is all 1's. -See _cmnd(StencilFunc). -.TP -_const(STENCIL_WRITEMASK) -_param2 returns one value, -the mask that controls writing of the stencil bitplanes. The initial value -is all 1's. See _cmnd(StencilMask). -.TP -_const(STEREO) -_param2 returns a single boolean value indicating whether stereo buffers -(left and right) are supported. -.TP -_const(SUBPIXEL_BITS) -_param2 returns one value, -an estimate of the number of bits of subpixel resolution that are used to -position rasterized geometry in window coordinates. The initial value -.br -is 4. -.TP -_const(TEXTURE_1D) -_param2 returns a single boolean value indicating whether 1D texture -mapping is enabled. The initial value is _const(FALSE). -See _cmnd(TexImage1D). -.TP -_const(TEXTURE_BINDING_1D) -_param2 returns a single value, the name of the texture -currently bound to the target _const(TEXTURE_1D). The initial value is 0. -See _cmnd(BindTexture). -.TP -_const(TEXTURE_2D) -_param2 returns a single boolean value indicating whether 2D texture -mapping is enabled. The initial value is _const(FALSE). -See _cmnd(TexImage2D). -.TP -_const(TEXTURE_BINDING_2D) -_param2 returns a single value, the name of the texture -currently bound to the target _const(TEXTURE_2D). The initial value is 0. -See _cmnd(BindTexture). -.TP -_const(TEXTURE_3D) -_param2 returns a single boolean value indicating whether 3D texture -mapping is enabled. The initial value is _const(FALSE). -See _cmnd(TexImage3D). -.TP -_const(TEXTURE_BINDING_3D) -_param2 returns a single value, the name of the texture -currently bound to the target _const(TEXTURE_3D). The initial value is 0. -See _cmnd(BindTexture). -.TP -_const(TEXTURE_COORD_ARRAY) -_param2 returns a single boolean value indicating whether the texture -coordinate array is enabled. The initial value is _const(FALSE). -See _cmnd(TexCoordPointer). -.TP -_const(TEXTURE_COORD_ARRAY_SIZE) -_param2 returns one value, -the number of coordinates per element in the texture coordinate -array. The initial value is 4. -See _cmnd(TexCoordPointer). -.TP -_const(TEXTURE_COORD_ARRAY_STRIDE) -_param2 returns one value, -the byte offset between consecutive elements in the texture coordinate -array. The initial value is 0. -See _cmnd(TexCoordPointer). -.TP -_const(TEXTURE_COORD_ARRAY_TYPE) -_param2 returns one value, -the data type of the coordinates in the texture coordinate -array. The initial value is _const(FLOAT). -See _cmnd(TexCoordPointer). -.TP -_const(TEXTURE_GEN_Q) -_param2 returns a single boolean value indicating whether automatic generation -of the \f2q\fP texture coordinate is enabled. The initial value is _const(FALSE). -See _cmnd(TexGen). -.TP -_const(TEXTURE_GEN_R) -_param2 returns a single boolean value indicating whether automatic generation -of the \f2r\fP texture coordinate is enabled. The initial value is _const(FALSE). -See _cmnd(TexGen). -.TP -_const(TEXTURE_GEN_S) -_param2 returns a single boolean value indicating whether automatic generation -of the \f2S\fP texture coordinate is enabled. The initial value is _const(FALSE). -See _cmnd(TexGen). -.TP -_const(TEXTURE_GEN_T) -_param2 returns a single boolean value indicating whether automatic generation -of the T texture coordinate is enabled. The initial value is _const(FALSE). -See _cmnd(TexGen). -.TP -_const(TEXTURE_MATRIX) -_param2 returns sixteen values: -the texture matrix on the top of the texture matrix stack. Initially this -matrix is the identity matrix. -See _cmnd(PushMatrix). -.TP -_const(TEXTURE_STACK_DEPTH) -_param2 returns one value, -the number of matrices on the texture matrix stack. -The initial value is 1. -See _cmnd(PushMatrix). -.TP -_const(UNPACK_ALIGNMENT) -_param2 returns one value, -the byte alignment used for reading pixel data from memory. The initial -value is 4. -See _cmnd(PixelStore). -.TP -_const(UNPACK_IMAGE_HEIGHT) -_param2 returns one value, -the image height used for reading pixel data from memory. The initial -is 0. -See _cmnd(PixelStore). -.TP -_const(UNPACK_LSB_FIRST) -_param2 returns a single boolean value indicating whether single-bit -pixels being read from memory are read first from the least significant -bit of each unsigned byte. The initial value is _const(FALSE). -See _cmnd(PixelStore). -.TP -_const(UNPACK_ROW_LENGTH) -_param2 returns one value, -the row length used for reading pixel data from memory. The initial value -is 0. -See _cmnd(PixelStore). -.TP -_const(UNPACK_SKIP_IMAGES) -_param2 returns one value, -the number of pixel images skipped before the first pixel is read -from memory. The initial value is 0. -See _cmnd(PixelStore). -.TP -_const(UNPACK_SKIP_PIXELS) -_param2 returns one value, -the number of pixel locations skipped before the first pixel is read -from memory. The initial value is 0. -See _cmnd(PixelStore). -.TP -_const(UNPACK_SKIP_ROWS) -_param2 returns one value, -the number of rows of pixel locations skipped before the first pixel is read -from memory. The initial value is 0. -See _cmnd(PixelStore). -.TP -_const(UNPACK_SWAP_BYTES) -_param2 returns a single boolean value indicating whether the bytes of -two-byte and four-byte pixel indices and components are swapped after being -read from memory. The initial value is _const(FALSE). -See _cmnd(PixelStore). -.TP -_const(VERTEX_ARRAY) -_param2 returns a single boolean value indicating whether the vertex -array is enabled. The initial value is _const(FALSE). -See _cmnd(VertexPointer). -.TP -_const(VERTEX_ARRAY_SIZE) -_param2 returns one value, -the number of coordinates per vertex in the vertex array. The initial -value is 4. -See _cmnd(VertexPointer). -.TP -_const(VERTEX_ARRAY_STRIDE) -_param2 returns one value, -the byte offset between consecutive vertices in the vertex -array. The initial value is 0. -See _cmnd(VertexPointer). -.TP -_const(VERTEX_ARRAY_TYPE) -_param2 returns one value, -the data type of each coordinate in the vertex array. The initial value is -_const(FLOAT). -See _cmnd(VertexPointer). -.TP -_const(VIEWPORT) -_param2 returns four values: -the $x$ and $y$ window coordinates of the viewport, -followed by its width and height. -Initially the $x$ and $y$ window coordinates are both set to 0, -and the width and height are set to the width and height of the window into -which the GL will do its rendering. -See _cmnd(Viewport). -.TP -_const(ZOOM_X) -_param2 returns one value, -the $x$ pixel zoom factor. The initial value is 1. -See _cmnd(PixelZoom). -.TP -_const(ZOOM_Y) -_param2 returns one value, -the $y$ pixel zoom factor. The initial value is 1. -See _cmnd(PixelZoom). -.P -Many of the boolean parameters can also be queried more easily using -_cmnd(IsEnabled). -.SH NOTES -_const(COLOR_LOGIC_OP), -_const(COLOR_ARRAY), -_const(COLOR_ARRAY_SIZE), -_const(COLOR_ARRAY_STRIDE), -_const(COLOR_ARRAY_TYPE), -_const(EDGE_FLAG_ARRAY), -_const(EDGE_FLAG_ARRAY_STRIDE), -_const(INDEX_ARRAY), -_const(INDEX_ARRAY_STRIDE), -_const(INDEX_ARRAY_TYPE), -_const(INDEX_LOGIC_OP), -_const(NORMAL_ARRAY), -_const(NORMAL_ARRAY_STRIDE), -_const(NORMAL_ARRAY_TYPE), -_const(POLYGON_OFFSET_UNITS), -_const(POLYGON_OFFSET_FACTOR), -_const(POLYGON_OFFSET_FILL), -_const(POLYGON_OFFSET_LINE), -_const(POLYGON_OFFSET_POINT), -_const(TEXTURE_COORD_ARRAY), -_const(TEXTURE_COORD_ARRAY_SIZE), -_const(TEXTURE_COORD_ARRAY_STRIDE), -_const(TEXTURE_COORD_ARRAY_TYPE), -_const(VERTEX_ARRAY), -_const(VERTEX_ARRAY_SIZE), -_const(VERTEX_ARRAY_STRIDE), and -_const(VERTEX_ARRAY_TYPE) -are available only if the GL version is 1.1 or greater. -.P -_const(ALIASED_POINT_SIZE_RANGE), -_const(ALIASED_POINT_SIZE_GRANULARITY), -_const(FEEDBACK_BUFFER_SIZE), -_const(FEEDBACK_BUFFER_TYPE), -_const(LIGHT_MODEL_AMBIENT), -_const(LIGHT_MODEL_COLOR_CONTROL), -_const(MAX_3D_TEXTURE_SIZE), -_const(MAX_ELEMENTS_INDICES), -_const(MAX_ELEMENTS_VERTICES), -_const(PACK_IMAGE_HEIGHT), -_const(PACK_SKIP_IMAGES), -_const(RESCALE_NORMAL), -_const(SELECTION_BUFFER_SIZE), -_const(SMOOTH_LINE_WIDTH_GRANULARITY), -_const(SMOOTH_LINE_WIDTH_RANGE), -_const(SMOOTH_POINT_SIZE_GRANULARITY), -_const(SMOOTH_POINT_SIZE_RANGE), -_const(TEXTURE_3D), -_const(TEXTURE_BINDING_3D), -_const(UNPACK_IMAGE_HEIGHT), and -_const(UNPACK_SKIP_IMAGES) -are available only if the GL version is 1.2 or greater. -.P -_const(LINE_WIDTH_GRANULARITY) was deprecated in GL version 1.2. Its -functionality was replaced by _const(SMOOTH_LINE_WIDTH_GRANULARITY). -.P -_const(LINE_WIDTH_RANGE) was deprecated in GL version 1.2. Its -functionality was replaced by _const(SMOOTH_LINE_WIDTH_RANGE). -.P -_const(POINT_SIZE_GRANULARITY) was deprecated in GL version 1.2. Its -functionality was replaced by _const(SMOOTH_POINT_SIZE_GRANULARITY). -.P -_const(POINT_SIZE_RANGE) was deprecated in GL version 1.2. Its -functionality was replaced by _const(SMOOTH_POINT_SIZE_RANGE). -.P -_const(BLEND_COLOR), -_const(BLEND_EQUATION), -_const(COLOR_MATRIX), -_const(COLOR_MATRIX_STACK_DEPTH), -_const(COLOR_TABLE), -_const(CONVOLUTION_1D), -_const(CONVOLUTION_2D), -_const(HISTOGRAM), -_const(MAX_COLOR_MATRIX_STACK_DEPTH), -_const(MINMAX), -_const(POST_COLOR_MATRIX_COLOR_TABLE), -_const(POST_COLOR_MATRIX_RED_BIAS), -_const(POST_COLOR_MATRIX_GREEN_BIAS), -_const(POST_COLOR_MATRIX_BLUE_BIAS), -_const(POST_COLOR_MATRIX_ALPHA_BIAS), -_const(POST_COLOR_MATRIX_RED_SCALE), -_const(POST_COLOR_MATRIX_GREEN_SCALE), -_const(POST_COLOR_MATRIX_BLUE_SCALE), -_const(POST_COLOR_MATRIX_ALPHA_SCALE), -_const(POST_CONVOLUTION_COLOR_TABLE), -_const(POST_CONVOLUTION_RED_BIAS), -_const(POST_CONVOLUTION_GREEN_BIAS), -_const(POST_CONVOLUTION_BLUE_BIAS), -_const(POST_CONVOLUTION_ALPHA_BIAS), -_const(POST_CONVOLUTION_RED_SCALE), -_const(POST_CONVOLUTION_GREEN_SCALE), -_const(POST_CONVOLUTION_BLUE_SCALE), -_const(POST_CONVOLUTION_ALPHA_SCALE), and -_const(SEPARABLE_2D) -are available only if _arbstring(imaging) is returned from _cmnd(Get) -when called with the argument _const(EXTENSIONS). -.P -_arbconst(ACTIVE_TEXTURE), -_arbconst(CLIENT_ACTIVE_TEXTURE), and -_arbconst(MAX_TEXTURE_UNITS) are available only if -_arbstring(multitexture) is returned from _cmnd(Get) when called with the -argument _const(EXTENSIONS). -.P -When the _arbstring(multitexture) extension is supported, the following -parameters return the associated value for the active texture unit: -_const(CURRENT_RASTER_TEXTURE_COORDS), -_const(TEXTURE_1D), _const(TEXTURE_BINDING_1D), -_const(TEXTURE_2D), _const(TEXTURE_BINDING_2D), -_const(TEXTURE_3D), _const(TEXTURE_BINDING_3D), -_const(TEXTURE_GEN_S), -_const(TEXTURE_GEN_T), -_const(TEXTURE_GEN_R), -_const(TEXTURE_GEN_Q), -_const(TEXTURE_MATRIX), and -_const(TEXTURE_STACK_DEPTH). -Likewise, the following parameters return the associated value for the -active client texture unit: -_const(TEXTURE_COORD_ARRAY), -_const(TEXTURE_COORD_ARRAY_SIZE), -_const(TEXTURE_COORD_ARRAY_STRIDE), -_const(TEXTURE_COORD_ARRAY_TYPE). -.SH ERRORS -_const(INVALID_ENUM) is generated if _param1 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). -.P -.SH SEE ALSO -_cmnd(GetClipPlane), -_cmnd(GetColorTable), -_cmnd(GetColorTableParameter), -_cmnd(GetConvolutionFilter), -_cmnd(GetConvolutionParameter), -_cmnd(GetError), -_cmnd(GetHistogram), -_cmnd(GetHistogramParameter), -_cmnd(GetLight), -_cmnd(GetMap), -_cmnd(GetMaterial), -_cmnd(GetMinmax), -_cmnd(GetMinmaxParameter), -_cmnd(GetPixelMap), -_cmnd(GetPointerv), -_cmnd(GetPolygonStipple), -_cmnd(GetSeparableFilter), -_cmnd(GetString), -_cmnd(GetTexEnv), -_cmnd(GetTexGen), -_cmnd(GetTexImage), -_cmnd(GetTexLevelParameter), -_cmnd(GetTexParameter), -_cmnd(IsEnabled) |