
Name

    EXT_pixel_transform_color_table

Name Strings

    GL_EXT_pixel_transform_color_table

Version

    $Date: 1997/06/04 06:08:41 $ $Revision: 1.1 $

Number

    139

Dependencies

    SGI_color_table is required
    EXT_pixel_transform is required

Overview

    This extension defines a color table that is applied immediately
    after the pixel transformation operation.

New Procedures and Functions

    None.

New Tokens

    Accepted by the <cap> parameter of Enable, Disable, and IsEnabled, and
    by the <target> parameter of ColorTableSGI, ColorTableParameterivSGI,
    ColorTableParameterfvSGI, GetColorTableSGI, GetColorTableParameterivSGI,
    and GetColorTableParameterfvSGI:

        PIXEL_TRANSFORM_COLOR_TABLE_EXT

    Accepted by the <target> parameter of ColorTableSGI,
    GetColorTableParameterivSGI, and GetColorTableParameterfvSGI:

        PROXY_PIXEL_TRANSFORM_COLOR_TABLE_EXT


Additions to Chapter 3 of the 1.1 Specification (Rasterization)

    The operation of the PIXEL_TRANSFORM_COLOR_TABLE is added to the GL
    Specification in section 3.6.3, "Rasterization of Pixel Rectangles".
    This color table behaves in the manner described in the SGI_color_table
    extension, and it is located immediately after the pixel transformation
    operation.  This color table can be enabled or disabled separately from
    the pixel transformation operation by calling Enable or Disable with
    PIXEL_TRANSFORM_COLOR_TABLE.  It can be modified using the procedures
    defined in the SGI_color_table extension.  The proxy version of this table
    can be set or queried by using a target value of
    PROXY_PIXEL_TRANSFORM_COLOR_TABLE.


Additions to the GLX Specification
    
    None


Dependencies on SGI_color_table

    SGI_color_table is required.  
    This extension adds another table to the list specified by SGI_color_table.
    This new table can be manipulated using the procedures defined by
    SGI_color_table.

    EXT_pixel_transform is required.  This extension builds on the capabilities
    defined by EXT_pixel_transform.

New State
                                                                                        Initial
    Get Value                                   Get Command                     Type    Value     Attrib
    ---------                                   -----------                     ----    -------   ------
    PIXEL_TRANSFORM_COLOR_TABLE_EXT             IsEnabled                        B       False    pixel/enable
    PIXEL_TRANSFORM_COLOR_TABLE_EXT             GetColorTableEXT                3 x I    empty      -

New Implementation Dependent State

    None