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Showing content from https://www.khronos.org/opengles/sdk/docs/man3/html/glGetSamplerParameter.xhtml below:

OpenGL ES 3 Reference Pages

Name

glGetSamplerParameter â return sampler parameter values

C Specification void glGetSamplerParameterfv( GLuint sampler, Â GLenum pname, Â GLfloat * params);

void glGetSamplerParameteriv( GLuint sampler, Â GLenum pname, Â GLint * params);

Parameters

sampler: Specifies name of the sampler object from which to retrieve parameters.
pname: Specifies the symbolic name of a sampler parameter. GL_TEXTURE_MAG_FILTER, GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MIN_LOD, GL_TEXTURE_MAX_LOD, GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, GL_TEXTURE_WRAP_R, GL_TEXTURE_COMPARE_MODE, and GL_TEXTURE_COMPARE_FUNC are accepted.
params: Returns the sampler parameters.

Description

glGetSamplerParameter* returns in params the value or values of the sampler parameter specified as pname. sampler defines the target sampler, and must be the name of an existing sampler object, returned from a previous call to glGenSamplers. pname accepts the same symbols as glSamplerParameter*, with the same interpretations:

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_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_COMPARE_MODE: Returns a single-valued texture comparison mode, a symbolic constant. The initial value is GL_NONE. See glSamplerParameter.
GL_TEXTURE_COMPARE_FUNC: Returns a single-valued texture comparison function, a symbolic constant. The initial value is GL_LEQUAL. See glSamplerParameter.

Notes

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

Errors

GL_INVALID_OPERATION is generated if sampler is not the name of a sampler object returned from a previous call to glGenSamplers.

GL_INVALID_ENUM is generated if pname is not an accepted value.

API Version Support OpenGL ES API Version Function Name 2.0 3.0 glGetSamplerParameterfv - â glGetSamplerParameteriv - â Copyright

Copyright Â© 2010-2014 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. https://opencontent.org/openpub/.

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