diff options
Diffstat (limited to 'xorg-server/hw/xfree86/xf4bpp/mfbbres.c')
| -rw-r--r-- | xorg-server/hw/xfree86/xf4bpp/mfbbres.c | 164 |
1 files changed, 0 insertions, 164 deletions
diff --git a/xorg-server/hw/xfree86/xf4bpp/mfbbres.c b/xorg-server/hw/xfree86/xf4bpp/mfbbres.c deleted file mode 100644 index 09d7ee288..000000000 --- a/xorg-server/hw/xfree86/xf4bpp/mfbbres.c +++ /dev/null @@ -1,164 +0,0 @@ -/* Combined Purdue/PurduePlus patches, level 2.0, 1/17/89 */ -/*********************************************************** - -Copyright (c) 1987 X Consortium - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -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 -X CONSORTIUM 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 X Consortium 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 X Consortium. - - -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. - -******************************************************************/ -/* GJA -- modified this file for vga16 */ - -#ifdef HAVE_XORG_CONFIG_H -#include <xorg-config.h> -#endif - -#include "xf4bpp.h" -#include "OScompiler.h" -#include "mfbmap.h" -#include "mfb.h" -#include "maskbits.h" -#include "miline.h" -#include "wm3.h" - -/* Solid bresenham line */ -/* NOTES - e2 is used less often than e1, so it's not in a register -*/ - -void -xf4bppBresS(addrlbase, nlwidth, signdx, signdy, axis, x1, y1, e, e1, e2, len) -PixelType *addrlbase; /* pointer to base of bitmap */ -int nlwidth; /* width in longwords of bitmap */ -int signdx, signdy; /* signs of directions */ -int axis; /* major axis (Y_AXIS or X_AXIS) */ -int x1, y1; /* initial point */ -register int e; /* error accumulator */ -register int e1; /* bresenham increments */ -int e2; -int len; /* length of line */ -{ - register int yinc; /* increment to next scanline, in bytes */ - register PixelType *addrl; /* bitmask long pointer - *dont* * cast to char pointer */ - register PixelType bit; /* current bit being set/cleared/etc. */ - PixelType leftbit = mfbGetmask(0); /* leftmost bit to process in new word */ - PixelType rightbit = mfbGetmask(PPW-1); /* rightmost bit to process in new word */ - - register int e3 = e2-e1; - - /* point to longword containing first point */ - addrl = mfbScanline(addrlbase, x1, y1, nlwidth); - yinc = signdy * nlwidth; - e = e-e1; /* to make looping easier */ - bit = mfbGetmask(x1 & PIM); - - if (!len) - return; - - if (axis == X_AXIS) - { - if (signdx > 0) - { - while(len--) - { - UPDRW(addrl,bit); - e += e1; - if (e >= 0) - { - addrl += yinc; - e += e3; - } - bit = SCRRIGHT(bit,1); - if (!bit) { bit = leftbit; addrl++; } - } - } - else - { - while(len--) - { - UPDRW(addrl,bit); - e += e1; - if (e >= 0) - { - addrl += yinc; - e += e3; - } - bit = SCRLEFT(bit,1); - if (!bit) { bit = rightbit; addrl--; } - } - } - } /* if X_AXIS */ - else - { - if (signdx > 0) - { - while(len--) - { - UPDRW(addrl,bit); - e += e1; - if (e >= 0) - { - bit = SCRRIGHT(bit,1); - if (!bit) { bit = leftbit; addrl++; } - e += e3; - } - addrl += yinc; - } - } - else - { - while(len--) - { - UPDRW(addrl,bit); - e += e1; - if (e >= 0) - { - bit = SCRLEFT(bit,1); - if (!bit) { bit = rightbit; addrl--; } - e += e3; - } - addrl += yinc; - } - } - } /* else Y_AXIS */ -} |