GLCOLORSUBTABLE(3G)													       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 existing table from indices start to start + count -1, 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 executed between the execution of glBegin and the corresponding execution of glEnd.

ASSOCIATED GETS

       glGetColorTable, glGetColorTableParameter

SEE ALSO

       glColorSubTable, glColorTableParameter, glCopyColorTable, glCopyColorSubTable, glGetColorTable

															       GLCOLORSUBTABLE(3G)