glGetPolygonStipple man page on RedHat
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GLGETPOLYGONSTIPPLE(3G) OpenGL Manual GLGETPOLYGONSTIPPLE(3G)
NAME
glGetPolygonStipple - return the polygon stipple pattern
C SPECIFICATION
void glGetPolygonStipple(GLubyte * pattern);
PARAMETERS
pattern
Returns the stipple pattern. The initial value is all 1's.
DESCRIPTION
glGetPolygonStipple returns to pattern a 32 × 32 polygon stipple
pattern. The pattern is packed into memory as if glReadPixels() with
both height and width of 32, type of GL_BITMAP, and format of
GL_COLOR_INDEX were called, and the stipple pattern were stored in an
internal 32 × 32 color index buffer. Unlike glReadPixels(), however,
pixel transfer operations (shift, offset, pixel map) are not applied to
the returned stipple image.
If a non-zero named buffer object is bound to the GL_PIXEL_PACK_BUFFER
target (see glBindBuffer()) while a polygon stipple pattern is
requested, pattern is treated as a byte offset into the buffer object's
data store.
NOTES
If an error is generated, no change is made to the contents of pattern.
ERRORS
GL_INVALID_OPERATION is generated if a non-zero buffer object name is
bound to the GL_PIXEL_PACK_BUFFER target and the buffer object's data
store is currently mapped.
GL_INVALID_OPERATION is generated if a non-zero buffer object name is
bound to the GL_PIXEL_PACK_BUFFER target and the data would be packed
to the buffer object such that the memory writes required would exceed
the data store size.
GL_INVALID_OPERATION is generated if glGetPolygonStipple is executed
between the execution of glBegin() and the corresponding execution of
glEnd().
ASSOCIATED GETS
glGet() with argument GL_PIXEL_PACK_BUFFER_BINDING
SEE ALSO
glPixelStore(), glPixelTransfer(), glPolygonStipple(), glReadPixels()
COPYRIGHT
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed
under the SGI Free Software B License. For details, see
http://oss.sgi.com/projects/FreeB/.
AUTHORS
opengl.org
opengl.org 03/16/2013 GLGETPOLYGONSTIPPLE(3G)
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