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Diffstat (limited to 'nx-X11/programs/Xserver/mi/mispans.h')
| -rw-r--r-- | nx-X11/programs/Xserver/mi/mispans.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/mi/mispans.h b/nx-X11/programs/Xserver/mi/mispans.h new file mode 100644 index 000000000..b6e97e2b4 --- /dev/null +++ b/nx-X11/programs/Xserver/mi/mispans.h @@ -0,0 +1,117 @@ +/* $XFree86: xc/programs/Xserver/mi/mispans.h,v 1.2 2001/08/06 20:51:20 dawes Exp $ */ +/*********************************************************** + +Copyright 1989, 1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included in +all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN +AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN +CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall not be +used in advertising or otherwise to promote the sale, use or other dealings +in this Software without prior written authorization from The Open Group. + + +Copyright 1989 by Digital Equipment Corporation, Maynard, Massachusetts. + + All Rights Reserved + +Permission to use, copy, modify, and distribute this software and its +documentation for any purpose and without fee is hereby granted, +provided that the above copyright notice appear in all copies and that +both that copyright notice and this permission notice appear in +supporting documentation, and that the name of Digital not be +used in advertising or publicity pertaining to distribution of the +software without specific, written prior permission. + +DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING +ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL +DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR +ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, +WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, +ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS +SOFTWARE. + +******************************************************************/ + +/* $Xorg: mispans.h,v 1.4 2001/02/09 02:05:21 xorgcvs Exp $ */ + +typedef struct { + int count; /* number of spans */ + DDXPointPtr points; /* pointer to list of start points */ + int *widths; /* pointer to list of widths */ +} Spans; + +typedef struct { + int size; /* Total number of *Spans allocated */ + int count; /* Number of *Spans actually in group */ + Spans *group; /* List of Spans */ + int ymin, ymax; /* Min, max y values encountered */ +} SpanGroup; + +/* Initialize SpanGroup. MUST BE DONE before use. */ +extern void miInitSpanGroup( + SpanGroup * /*spanGroup*/ +); + +/* Add a Spans to a SpanGroup. The spans MUST BE in y-sorted order */ +extern void miAppendSpans( + SpanGroup * /*spanGroup*/, + SpanGroup * /*otherGroup*/, + Spans * /*spans*/ +); + +/* Paint a span group, possibly with some overlap */ +extern void miFillSpanGroup( + DrawablePtr /*pDraw*/, + GCPtr /*pGC*/, + SpanGroup * /*spanGroup*/ +); + +/* Paint a span group, insuring that each pixel is painted at most once */ +extern void miFillUniqueSpanGroup( + DrawablePtr /*pDraw*/, + GCPtr /*pGC*/, + SpanGroup * /*spanGroup*/ +); + +/* Free up data in a span group. MUST BE DONE or you'll suffer memory leaks */ +extern void miFreeSpanGroup( + SpanGroup * /*spanGroup*/ +); + +extern void miSubtractSpans( + SpanGroup * /*spanGroup*/, + Spans * /*sub*/ +); + +extern void miDisposeSpanGroup( + SpanGroup * /*spanGroup*/ +); + +extern int miClipSpans( + RegionPtr /*prgnDst*/, + DDXPointPtr /*ppt*/, + int * /*pwidth*/, + int /*nspans*/, + DDXPointPtr /*pptNew*/, + int * /*pwidthNew*/, + int /*fSorted*/ +); + +/* Rops which must use span groups */ +#define miSpansCarefulRop(rop) (((rop) & 0xc) == 0x8 || ((rop) & 0x3) == 0x2) +#define miSpansEasyRop(rop) (!miSpansCarefulRop(rop)) + |