GLGETTEXPARAMETER() GLGETTEXPARAMETER() NAME glGetTexParameterfv, glGetTexParameteriv - return texture parameter values C SPECIFICATION void glGetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) void glGetTexParameteriv( GLenum target, GLenum pname, GLint *params ) delim $$ PARAMETERS target Specifies the symbolic name of the target texture. GL_TEXTURE_1D and GL_TEXTURE_2D are accepted. pname Specifies the symbolic name of a texture parameter. GL_TEX- TURE_MAG_FILTER, GL_TEXTURE_MIN_FILTER, GL_TEXTURE_WRAP_S, GL_TEX- TURE_WRAP_T, GL_TEXTURE_BORDER_COLOR, GL_TEXTURE_PRIORITY, and GL_TEXTURE_RESIDENT are accepted. params Returns the texture parameters. DESCRIPTION glGetTexParameter returns in params the value or values of the texture pa- rameter specified as pname. target defines the target texture, either GL_TEXTURE_1D or GL_TEXTURE_2D, to specify one- or two-dimensional textur- ing. pname accepts the same symbols as glTexParameter, with the same in- terpretations: GL_TEXTURE_MAG_FILTER Returns the single-valued texture magni- fication filter, a symbolic constant. The initial value is GL_LINEAR. GL_TEXTURE_MIN_FILTER Returns the single-valued texture mini- fication filter, a symbolic constant. The initial value is GL_NEAR- EST_MIPMAP_LINEAR. GL_TEXTURE_WRAP_S Returns the single-valued wrapping func- tion for texture coordinate $s$, a sym- bolic constant. The initial value is GL_REPEAT. GL_TEXTURE_WRAP_T Returns the single-valued wrapping func- tion for texture coordinate $t$, a sym- bolic 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 val- ues 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 repre- sentable integer. The initial value is (0, 0, 0, 0). GL_TEXTURE_PRIORITY Returns the residence priority of the target texture (or the named texture bound to it). The initial value is 1. See glPrioritizeTextures. GL_TEXTURE_RESIDENT Returns the residence status of the tar- get texture. If the value returned in params is GL_TRUE, the texture is resi- dent in texture memory. See glAreTex- turesResident. NOTES GL_TEXTURE_PRIORITY and GL_TEXTURE_RESIDENT are only available if the GL version is 1.1 or greater. If an error is generated, no change is made to the contents of params. ERRORS GL_INVALID_ENUM is generated if target or pname is not an accepted value. GL_INVALID_OPERATION is generated if glGetTexParameter is executed between the execution of glBegin and the corresponding execution of glEnd. SEE ALSO glAreTexturesResident, glPrioritizeTextures, glTexParameter GLGETTEXPARAMETER()
NAME | C SPECIFICATION | PARAMETERS | DESCRIPTION | NOTES | ERRORS | SEE ALSO
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