C SPECIFICATION

       void GLAPIENTRY glGetPixelMapfv( GLenum map,
                                        GLfloat *values )
       void GLAPIENTRY glGetPixelMapuiv( GLenum map,
                                         GLuint *values )
       void GLAPIENTRY glGetPixelMapusv( GLenum map,
                                         GLushort *values )

PARAMETERS

       map     Specifies the name of the pixel map to return.  Accepted values
               are          GL_PIXEL_MAP_I_TO_I,          GL_PIXEL_MAP_S_TO_S,
               GL_PIXEL_MAP_I_TO_R, GL_PIXEL_MAP_I_TO_G,  GL_PIXEL_MAP_I_TO_B,
               GL_PIXEL_MAP_I_TO_A,  GL_PIXEL_MAP_R_TO_R, GL_PIXEL_MAP_G_TO_G,
               GL_PIXEL_MAP_B_TO_B, and GL_PIXEL_MAP_A_TO_A.

       values  Returns the pixel map contents.

DESCRIPTION

       See the glPixelMap reference page for a description of  the  acceptable
       values for the map parameter.  glGetPixelMap returns in values the con-
       tents of the pixel map specified in map.  Pixel maps  are  used  during
       the    execution    of    glReadPixels,   glDrawPixels,   glCopyPixels,
       glTexImage1D,     glTexImage2D,     glTexImage3D,      glTexSubImage1D,
       glTexSubImage2D,  glTexSubImage3D,  glCopyTexImage1D, glCopyTexImage2D,
       glCopyTexSubImage1D,     glCopyTexSubImage2D,      glCopyTexSubImage3D,
       glColorTable,  glColorSubTable,  glCopyColorTable, glCopyColorSubTable,
       glConvolutionFilter1D,   glConvolutionFilter2D,    glSeparableFilter2D,
       glGetHistogram,  glGetMinmax,  and  glGetTexImage to map color indices,
       stencil indices, color components, and depth components to  other  val-
       ues.

       Unsigned  integer  values,  if  requested, are linearly mapped from the
       internal fixed or floating-point representation such that 1.0  maps  to
       the  largest  representable  integer  value, and 0.0 maps to 0.  Return
       unsigned integer values are undefined if the map value was not  in  the
       range [0,1].

       To  determine the required size of map, call glGet with the appropriate
       symbolic constant.

NOTES

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

ERRORS

       GL_INVALID_ENUM is generated if map is not an accepted value.

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

       glColorSubTable, glColorTable, glConvolutionFilter1D,
       glConvolutionFilter2D, glCopyColorSubTable, glCopyColorTable,
       glCopyPixels, glCopyTexImage1D, glCopyTexImage2D, glCopyTexSubImage1D,
       glCopyTexSubImage2D, glCopyTexSubImage3D, glDrawPixels, glGetHistogram,
       glGetMinmax, glGetTexImage, glPixelMap, glPixelTransfer, glReadPixels,
       glSeparableFilter2D, glTexImage1D, glTexImage1D, glTexImage2D
       glTexImage2D, glTexImage3D, glTexSubImage1D, glTexSubImage2D,
       glTexSubImage3D



                                                             GLGETPIXELMAP(3G)