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Diffstat (limited to 'cfb/cfbhrzvert.c')
| -rw-r--r-- | cfb/cfbhrzvert.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/cfb/cfbhrzvert.c b/cfb/cfbhrzvert.c new file mode 100644 index 000000000..3fe9262ad --- /dev/null +++ b/cfb/cfbhrzvert.c @@ -0,0 +1,179 @@ +/*********************************************************** + +Copyright 1987,1998 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 1987 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: cfbhrzvert.c,v 1.4 2001/02/09 02:04:38 xorgcvs Exp $ */ +#include "X.h" + +#include "gc.h" +#include "window.h" +#include "pixmap.h" +#include "region.h" + +#include "cfb.h" +#include "cfbmskbits.h" + +/* horizontal solid line + abs(len) > 1 +*/ +cfbHorzS(rop, and, xor, addrl, nlwidth, x1, y1, len) +register int rop; +register unsigned long and; +register unsigned long xor; +register unsigned long *addrl; /* pointer to base of bitmap */ +int nlwidth; /* width in longwords of bitmap */ +int x1; /* initial point */ +int y1; +int len; /* length of line */ +{ + register int nlmiddle; + register unsigned long startmask; + register unsigned long endmask; + + addrl = addrl + (y1 * nlwidth) + (x1 >> PWSH); + + /* all bits inside same longword */ + if ( ((x1 & PIM) + len) < PPW) + { + maskpartialbits(x1, len, startmask); + *addrl = DoMaskRRop (*addrl, and, xor, startmask); + } + else + { + maskbits(x1, len, startmask, endmask, nlmiddle); + if (rop == GXcopy) + { + if (startmask) + { + *addrl = (*addrl & ~startmask) | (xor & startmask); + addrl++; + } + while (nlmiddle--) + *addrl++ = xor; + if (endmask) + *addrl = (*addrl & ~endmask) | (xor & endmask); + } + else + { + if (startmask) + { + *addrl = DoMaskRRop (*addrl, and, xor, startmask); + addrl++; + } + if (rop == GXxor) + { + while (nlmiddle--) + *addrl++ ^= xor; + } + else + { + while (nlmiddle--) + { + *addrl = DoRRop (*addrl, and, xor); + addrl++; + } + } + if (endmask) + *addrl = DoMaskRRop (*addrl, and, xor, endmask); + } + } +} + +/* vertical solid line */ + +cfbVertS(rop, and, xor, addrl, nlwidth, x1, y1, len) +int rop; +register unsigned long and, xor; +register unsigned long *addrl; /* pointer to base of bitmap */ +register int nlwidth; /* width in longwords of bitmap */ +int x1, y1; /* initial point */ +register int len; /* length of line */ +{ +#ifdef PIXEL_ADDR + register PixelType *bits = (PixelType *) addrl; + + nlwidth <<= PWSH; + bits = bits + (y1 * nlwidth) + x1; + + /* + * special case copy and xor to avoid a test per pixel + */ + if (rop == GXcopy) + { + while (len--) + { + *bits = xor; + bits += nlwidth; + } + } + else if (rop == GXxor) + { + while (len--) + { + *bits ^= xor; + bits += nlwidth; + } + } + else + { + while (len--) + { + *bits = DoRRop(*bits, and, xor); + bits += nlwidth; + } + } +#else /* !PIXEL_ADDR */ + addrl = addrl + (y1 * nlwidth) + (x1 >> PWSH); + + and |= ~cfbmask[x1 & PIM]; + xor &= cfbmask[x1 & PIM]; + + while (len--) + { + *addrl = DoRRop (*addrl, and, xor); + addrl += nlwidth; + } +#endif +} |