fglgetpixeltexgenparameter(3G)

NAME
     fglGetPixelTexGenParameterfvSGIS, fglGetPixelTexGenParameterivSGIS -
     return pixel texture parameter values


FORTRAN SPECIFICATION
     SUBROUTINE fglGetPixelTexGenParameterfvSGIS( INTEGER*4 pname,
                                                  CHARACTER*8 params )
     SUBROUTINE fglGetPixelTexGenParameterivSGIS( INTEGER*4 pname,
                                                  CHARACTER*8 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
     fglGetPixelTexGenParameterSGIS returns in params the value or values of a
     pixel texture parameter.  pname accepts the same symbols as
     fglPixelTexGenParameterSGIS:

     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 fglGetPixelTexGenParameterSGIS is
     executed between the execution of fglBegin and the corresponding
     execution of fglEnd.


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


SEE ALSO
     fglPixelTexGenParameterSGIS