GNU/Linux man pages
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Expressions régulières,
Syntaxe et mise en oeuvre :
GNU/Linux |
CentOS 5.3 |
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glGetTexParameteriv(3gl) |
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glGetTexParameterfv, glGetTexParameteriv − return texture parameter values
void glGetTexParameterfv( GLenum target,
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GLenum pname, | |
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GLfloat *params ) |
void glGetTexParameteriv( GLenum target,
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GLenum pname, | |
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GLint *params ) |
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target |
Specifies the symbolic name of the target texture. GL_TEXTURE_1D,GL_TEXTURE_2D, and GL_TEXTURE_3D are accepted. | ||
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pname |
Specifies the symbolic name of a texture parameter. GL_TEXTURE_MAG_FILTER, GL_TEXTURE_MIN_FILTER, GL_TEXTURE_MIN_LOD, GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, GL_TEXTURE_MAX_LEVEL, GL_TEXTURE_WRAP_S, GL_TEXTURE_WRAP_T, GL_TEXTURE_WRAP_R, GL_TEXTURE_BORDER_COLOR, GL_TEXTURE_PRIORITY, and GL_TEXTURE_RESIDENT are accepted. | ||
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params |
Returns the texture parameters. |
glGetTexParameter returns in params the value or values of the texture parameter specified as pname. target defines the target texture, either GL_TEXTURE_1D, GL_TEXTURE_2D, or GL_TEXTURE_3D to specify one-, two-, or three-dimensional texturing. pname accepts the same symbols as glTexParameter, with the same interpretations:
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GL_TEXTURE_MAG_FILTER |
Returns the single-valued texture magnification filter, a symbolic constant. The initial value is GL_LINEAR. | ||
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GL_TEXTURE_MIN_FILTER |
Returns the single-valued texture minification filter, a symbolic constant. The initial value is GL_NEAREST_MIPMAP_LINEAR. | ||
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GL_TEXTURE_MIN_LOD |
Returns the single-valued texture minimum level-of-detail value. The initial value is $-1000$. | ||
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GL_TEXTURE_MAX_LOD |
Returns the single-valued texture maximum level-of-detail value. The initial value is 1000. | ||
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GL_TEXTURE_BASE_LEVEL |
Returns the single-valued base texture mipmap level. The initial value is 0. | ||
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GL_TEXTURE_MAX_LEVEL |
Returns the single-valued maximum texture mipmap array level. The initial value is 1000. | ||
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GL_TEXTURE_WRAP_S |
Returns the single-valued wrapping function for texture coordinate $s$, a symbolic constant. The initial value is GL_REPEAT. | ||
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GL_TEXTURE_WRAP_T |
Returns the single-valued wrapping function for texture coordinate $t$, a symbolic constant. The initial value is GL_REPEAT. | ||
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GL_TEXTURE_WRAP_R |
Returns the single-valued wrapping function for texture coordinate $r$, a symbolic constant. The initial value is GL_REPEAT. | ||
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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). | ||
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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. | ||
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GL_TEXTURE_RESIDENT |
Returns the residence status of the target texture. If the value returned in params is GL_TRUE, the texture is resident in texture memory. See glAreTexturesResident. |
GL_TEXTURE_PRIORITY and GL_TEXTURE_RESIDENT are available only if the GL version is 1.1 or greater.
GL_TEXTURE_3D, GL_TEXTURE_MIN_LOD, GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, GL_TEXTURE_MAX_LEVEL, and GL_TEXTURE_WRAP_R are available only if the GL version is 1.2 or greater.
If an error is generated, no change is made to the contents of params.
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.
glAreTexturesResident(3G), glPrioritizeTextures(3G), glTexParameter(3G)
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glGetTexParameteriv(3gl) | |