glgetpixeltexgenparameter(3G)

NAME
     glGetPixelTexGenParameterfvSGIS, glGetPixelTexGenParameterivSGIS - return
     pixel texture parameter values


C SPECIFICATION
     void glGetPixelTexGenParameterfvSGIS( GLenum pname,
                                           GLfloat *params )
     void glGetPixelTexGenParameterivSGIS( GLenum pname,
                                           GLint *params )


PARAMETERS
     pname   Specifies the symbolic name of the parameter to be queried.
             Accepted values are GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS and
             GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS.

     params  Returns the pixel texture parameters.


DESCRIPTION
     glGetPixelTexGenParameterSGIS returns in params the value or values of a
     pixel texture parameter.  pname accepts the same symbols as
     glPixelTexGenParameterSGIS:

     GL_PIXEL_FRAGMENT_RGB_SOURCE_SGIS
               Returns the single-valued source of red, green, and blue color
               components used to generate s, t, and r texture coordinates
               when pixel texturing is enabled.  The initial value is
               GL_PIXEL_GROUP_COLOR_SGIS.

     GL_PIXEL_FRAGMENT_ALPHA_SOURCE_SGIS
               Returns the single-valued source of the alpha color component
               used to generate q texture coordinates when pixel texturing is
               enabled.  The initial value is GL_PIXEL_GROUP_COLOR_SGIS.


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

     GL_INVALID_OPERATION is generated if glGetPixelTexGenParameterSGIS is
     executed between the execution of glBegin and the corresponding execution
     of glEnd.


MACHINE DEPENDENCIES
     glGetPixelTexGenParameterSGIS is supported only on Octane2 VPro systems.
NOTES
     glGetPixelTexGenParameterSGIS is part of the SGIS_pixel_texture
     extension.


SEE ALSO
     glPixelTexGenParameterSGIS