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Table of Contents
glCopyColorSubTable - respecify a portion of a color table
void
glCopyColorSubTable( GLenum target,
GLsizei start,
GLint x,
GLint y,
GLsizei width )
- 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.
- x, y
- The window coordinates of the left
corner of the row of pixels to be copied.
- width
- The number of table entries
to replace.
glCopyColorSubTable is used to respecify a contiguous
portion of a color table previously defined using glColorTable. The pixels
copied from the framebuffer replace the portion of the existing table from
indices start to $"start"~+~"x"~-~1$, inclusive. This region may not include
any entries outside the range of the color table, as was originally specified.
It is not an error to specify a subtexture with width of 0, but such a
specification has no effect.
glCopyColorSubTable is present only if
GL_ARB_imaging is returned when glGetString is called with an argument
of GL_EXTENSIONS.
GL_INVALID_VALUE is generated if target is not a
previously defined color table.
GL_INVALID_VALUE is generated if target
is not one of the allowable values.
GL_INVALID_VALUE is generated if $"start"~+~"x"~>~width$.
GL_INVALID_OPERATION is generated if glCopyColorSubTable is executed between
the execution of glBegin and the corresponding execution of glEnd.
glGetColorTable, glGetColorTableParameter
glColorSubTable(3G)
,
glColorTableParameter(3G)
, glCopyColorTable(3G)
, glCopyColorSubTable(3G)
,
glGetColorTable(3G)
Table of Contents
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