GLCOLORSUBTABLE - Online Linux Manual PageSection : 3G
NAME"glColorSubTable − respecify a portion of a color table
C SPECIFICATIONvoid glColorSubTable( GLenum target, GLsizei start, GLsizei count, GLenum format, GLenum type, const GLvoid *data )
PARAMETERStarget  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.
DESCRIPTION­glColorSubTable 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.
NOTES­glColorSubTable is present only if ­GL_ARB_imaging is returned when ­glGetString is called with an argument of ­GL_EXTENSIONS.
ERRORS­GL_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 GETS­glGetColorTable, ­glGetColorTableParameter
SEE ALSO­glColorSubTable(3G), ­glColorTableParameter(3G), ­glCopyColorTable(3G), ­glCopyColorSubTable(3G), ­glGetColorTable(3G) 0
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