MirOS Manual: glColorSubTable(3)


GLCOLORSUBTABLE(3G) UNIX Programmer's Manual  GLCOLORSUBTABLE(3G)

NAME

     glColorSubTable - respecify a portion of a color table

C SPECIFICATION

     void glColorSubTable( GLenum target,
                           GLsizei start,
                           GLsizei count,
                           GLenum format,
                           GLenum type,
                           const GLvoid *data )

PARAMETERS

     target  Must be one of GL_COLOR_TABLE,
             GL_POST_CONVOLUTION_COLOR_TABLE, or
             GL_POST_COLOR_MATRIX_COLOR_TABLE.

     start   The starting index of the portion of the color table
             to be replaced.

     count   The number of table entries to replace.

     format  The  of the pixel data in data. The allowable values
             are GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA,
             GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_RGB, GL_BGR,
             GL_RGBA, and GL_BGRA.

     type    The type of the pixel data in data. The allowable
             values are GL_UNSIGNED_BYTE, GL_BYTE,
             GL_UNSIGNED_SHORT, GL_SHORT, GL_UNSIGNED_INT,
             GL_INT, GL_FLOAT, GL_UNSIGNED_BYTE_3_3_2,
             GL_UNSIGNED_BYTE_2_3_3_REV, GL_UNSIGNED_SHORT_5_6_5,
             GL_UNSIGNED_SHORT_5_6_5_REV,
             GL_UNSIGNED_SHORT_4_4_4_4,
             GL_UNSIGNED_SHORT_4_4_4_4_REV,
             GL_UNSIGNED_SHORT_5_5_5_1,
             GL_UNSIGNED_SHORT_1_5_5_5_REV,
             GL_UNSIGNED_INT_8_8_8_8,
             GL_UNSIGNED_INT_8_8_8_8_REV,
             GL_UNSIGNED_INT_10_10_10_2, and
             GL_UNSIGNED_INT_2_10_10_10_REV.

     data    Pointer to a one-dimensional array of pixel data
             that is processed to replace the specified region of
             the color table.

DESCRIPTION

     glColorSubTable is used to respecify a contiguous portion of
     a color table previously defined using glColorTable.  The
     pixels referenced by data replace the portion of the exist-
     ing table from indices start to $"start"~+~"count"~-~1$,

MirOS BSD #10-current   Printed 20.2.2012                       1

GLCOLORSUBTABLE(3G) UNIX Programmer's Manual  GLCOLORSUBTABLE(3G)

     inclusive.  This region may not include any entries outside
     the range of the color table as it was originally specified.
     It is not an error to specify a subtexture with width of 0,
     but such a specification has no effect.

NOTES

     glColorSubTable is present only if GL_ARB_imaging is
     returned when glGetString is called with an argument of
     GL_EXTENSIONS.

ERRORS

     GL_INVALID_ENUM is generated if target is not one of the
     allowable values.

     GL_INVALID_VALUE is generated if
     $"start"~+~"count"~>~width$.

     GL_INVALID_ENUM is generated if format is not one of the
     allowable values.

     GL_INVALID_ENUM is generated if type is not one of the
     allowable values.

     GL_INVALID_OPERATION is generated if glColorSubTable is exe-
     cuted between the execution of glBegin and the corresponding
     execution of glEnd.

ASSOCIATED GETS

     glGetColorTable, glGetColorTableParameter

SEE ALSO

     glColorSubTable(3G), glColorTableParameter(3G),
     glCopyColorTable(3G), glCopyColorSubTable(3G),
     glGetColorTable(3G)

MirOS BSD #10-current   Printed 20.2.2012                       2

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