glGetTexParameter man page on Oracle

Man page or keyword search:  
man Server   33470 pages
apropos Keyword Search (all sections)
Output format
Oracle logo
[printable version]

GLGETTEXPARAMETER(3G)		 OpenGL Manual		 GLGETTEXPARAMETER(3G)

NAME
       glGetTexParameter - return texture parameter values

C SPECIFICATION
       void glGetTexParameterfv(GLenum target, GLenum pname,
				GLfloat * params);

       void glGetTexParameteriv(GLenum target, GLenum pname, GLint * params);

       void glGetTexParameterIiv(GLenum target, GLenum pname, GLint * params);

       void glGetTexParameterIuiv(GLenum target, GLenum pname,
				  GLuint * params);

PARAMETERS
       target
	   Specifies the symbolic name of the target texture.  GL_TEXTURE_1D,
	   GL_TEXTURE_2D, GL_TEXTURE_1D_ARRAY, GL_TEXTURE_2D_ARRAY,
	   GL_TEXTURE_3D, GL_TEXTURE_RECTANGLE, GL_TEXTURE_CUBE_MAP, and
	   GL_TEXTURE_CUBE_MAP_ARRAY are accepted.

       pname
	   Specifies the symbolic name of a texture parameter.
	   GL_DEPTH_STENCIL_TEXTURE_MODE, GL_TEXTURE_BASE_LEVEL,
	   GL_TEXTURE_BORDER_COLOR, GL_TEXTURE_COMPARE_MODE,
	   GL_TEXTURE_COMPARE_FUNC, GL_TEXTURE_IMMUTABLE_FORMAT,
	   GL_TEXTURE_IMMUTABLE_LEVELS, GL_TEXTURE_LOD_BIAS,
	   GL_TEXTURE_MAG_FILTER, GL_TEXTURE_MAX_LEVEL, GL_TEXTURE_MAX_LOD,
	   GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MIN_LOD, GL_TEXTURE_SWIZZLE_R,
	   GL_TEXTURE_SWIZZLE_G, GL_TEXTURE_SWIZZLE_B, GL_TEXTURE_SWIZZLE_A,
	   GL_TEXTURE_SWIZZLE_RGBA, GL_TEXTURE_VIEW_MIN_LAYER,
	   GL_TEXTURE_VIEW_MIN_LEVEL, GL_TEXTURE_VIEW_NUM_LAYERS,
	   GL_TEXTURE_VIEW_NUM_LEVELS, GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T,
	   and GL_TEXTURE_WRAP_R are accepted.

       params
	   Returns the texture parameters.

DESCRIPTION
       glGetTexParameter returns in params the value or values of the texture
       parameter specified as pname.  target defines the target texture.
       GL_TEXTURE_1D, GL_TEXTURE_2D, GL_TEXTURE_3D, GL_TEXTURE_1D_ARRAY,
       GL_TEXTURE_2D_ARRAY, GL_TEXTURE_RECTANGLE, GL_TEXTURE_CUBE_MAP,
       GL_TEXTURE_CUBE_MAP_ARRAY specify one-, two-, or three-dimensional,
       one-dimensional array, two-dimensional array, rectangle, cube-mapped or
       cube-mapped array texturing, respectively.  pname accepts the same
       symbols as glTexParameter(), with the same interpretations:

       GL_DEPTH_STENCIL_TEXTURE_MODE
	   Returns the single-value depth stencil texture mode, a symbolic
	   constant. The initial value is GL_DEPTH_COMPONENT.

       GL_TEXTURE_MAG_FILTER
	   Returns the single-valued texture magnification filter, a symbolic
	   constant. The initial value is GL_LINEAR.

       GL_TEXTURE_MIN_FILTER
	   Returns the single-valued texture minification filter, a symbolic
	   constant. The initial value is GL_NEAREST_MIPMAP_LINEAR.

       GL_TEXTURE_MIN_LOD
	   Returns the single-valued texture minimum level-of-detail value.
	   The initial value is -1000.

       GL_TEXTURE_MAX_LOD
	   Returns the single-valued texture maximum level-of-detail value.
	   The initial value is 1000.

       GL_TEXTURE_BASE_LEVEL
	   Returns the single-valued base texture mipmap level. The initial
	   value is 0.

       GL_TEXTURE_MAX_LEVEL
	   Returns the single-valued maximum texture mipmap array level. The
	   initial value is 1000.

       GL_TEXTURE_SWIZZLE_R
	   Returns the red component swizzle. The initial value is GL_RED.

       GL_TEXTURE_SWIZZLE_G
	   Returns the green component swizzle. The initial value is GL_GREEN.

       GL_TEXTURE_SWIZZLE_B
	   Returns the blue component swizzle. The initial value is GL_BLUE.

       GL_TEXTURE_SWIZZLE_A
	   Returns the alpha component swizzle. The initial value is GL_ALPHA.

       GL_TEXTURE_SWIZZLE_RGBA
	   Returns the component swizzle for all channels in a single query.

       GL_TEXTURE_WRAP_S
	   Returns the single-valued wrapping function for texture coordinate
	   s, a symbolic constant. The initial value is GL_REPEAT.

       GL_TEXTURE_WRAP_T
	   Returns the single-valued wrapping function for texture coordinate
	   t, a symbolic constant. The initial value is GL_REPEAT.

       GL_TEXTURE_WRAP_R
	   Returns the single-valued wrapping function for texture coordinate
	   r, a symbolic constant. The initial value is GL_REPEAT.

       GL_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).

       GL_TEXTURE_COMPARE_MODE
	   Returns a single-valued texture comparison mode, a symbolic
	   constant. The initial value is GL_NONE. See glTexParameter().

       GL_TEXTURE_COMPARE_FUNC
	   Returns a single-valued texture comparison function, a symbolic
	   constant. The initial value is GL_LEQUAL. See glTexParameter().

       GL_TEXTURE_VIEW_MIN_LEVEL
	   Returns a single-valued base level of a texture view relative to
	   its parent. The initial value is 0. See glTextureView().

       GL_TEXTURE_VIEW_NUM_LEVELS
	   Returns a single-valued number of levels of detail of a texture
	   view. See glTextureView().

       GL_TEXTURE_VIEW_MIN_LAYER
	   Returns a single-valued first level of a texture array view
	   relative to its parent. See glTextureView().

       GL_TEXTURE_VIEW_NUM_LAYERS
	   Returns a single-valued number of layers in a texture array view.
	   See glTextureView().

       GL_TEXTURE_IMMUTABLE_LEVELS
	   Returns a single-valued number of immutable texture levels in a
	   texture view. See glTextureView().

       In addition to the parameters that may be set with glTexParameter(),
       glGetTexParameter accepts the following read-only parameters:

       GL_TEXTURE_IMMUTABLE_FORMAT
	   Returns non-zero if the texture has an immutable format. Textures
	   become immutable if their storage is specified with
	   glTexStorage1D(), glTexStorage2D() or glTexStorage3D(). The initial
	   value is GL_FALSE.

NOTES
       If an error is generated, no change is made to the contents of params.

       GL_DEPTH_STENCIL_TEXTURE_MODE, GL_TEXTURE_VIEW_MIN_LEVEL,
       GL_TEXTURE_VIEW_NUM_LEVELS, GL_TEXTURE_VIEW_MIN_LAYER,
       GL_TEXTURE_VIEW_NUM_LAYERS and GL_TEXTURE_IMMUTABLE_LEVELS are
       available only if the GL version is 4.3 or greater.

ERRORS
       GL_INVALID_ENUM is generated if target or pname is not an accepted
       value.

SEE ALSO
       glTexParameter(), glTexStorage1D(), glTexStorage2D(), glTexStorage3D(),
       glTextureView()

COPYRIGHT
       Copyright © 1991-2006 Silicon Graphics, Inc. Copyright © 2010-2012
       Khronos Group. This document is licensed under the SGI Free Software B
       License. For details, see http://oss.sgi.com/projects/FreeB/.

AUTHORS
       opengl.org

opengl.org			  04/29/2014		 GLGETTEXPARAMETER(3G)
[top]

List of man pages available for Oracle

Copyright (c) for man pages and the logo by the respective OS vendor.

For those who want to learn more, the polarhome community provides shell access and support.

[legal] [privacy] [GNU] [policy] [cookies] [netiquette] [sponsors] [FAQ]
Tweet
Polarhome, production since 1999.
Member of Polarhome portal.
Based on Fawad Halim's script.
....................................................................
Vote for polarhome
Free Shell Accounts :: the biggest list on the net