2 * Copyright © 1998 Keith Packard
4 * Permission to use, copy, modify, distribute, and sell this software and its
5 * documentation for any purpose is hereby granted without fee, provided that
6 * the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of Keith Packard not be used in
9 * advertising or publicity pertaining to distribution of the software without
10 * specific, written prior permission. Keith Packard makes no
11 * representations about the suitability of this software for any purpose. It
12 * is provided "as is" without express or implied warranty.
14 * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15 * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16 * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17 * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18 * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19 * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
20 * PERFORMANCE OF THIS SOFTWARE.
23 #define FbSelectPart(xor,o,t) xor
25 #ifdef HAVE_DIX_CONFIG_H
26 #include <dix-config.h>
43 FbBits startmask, endmask;
45 int startbyte, endbyte;
48 if (bpp == 24 && (!FbCheck24Pix(and) || !FbCheck24Pix(xor)))
50 fbSolid24 (dst, dstStride, dstX, width, height, and, xor);
54 dst += dstX >> FB_SHIFT;
56 FbMaskBitsBytes(dstX, width, and == 0, startmask, startbyte,
57 nmiddle, endmask, endbyte);
65 FbDoLeftMaskByteRRop(dst,startbyte,startmask,and,xor);
75 WRITE(dst, FbDoRRop (READ(dst), and, xor));
79 FbDoRightMaskByteRRop(dst,endbyte,endmask,and,xor);
86 fbSolid24 (FbBits *dst,
96 FbBits startmask, endmask;
97 FbBits xor0 = 0, xor1 = 0, xor2 = 0;
98 FbBits and0 = 0, and1 = 0, and2 = 0;
99 FbBits xorS = 0, andS = 0, xorE = 0, andE = 0;
103 dst += dstX >> FB_SHIFT;
106 * Rotate pixel values this far across the word to align on
107 * screen pixel boundaries
109 rot = FbFirst24Rot (dstX);
110 FbMaskBits (dstX, width, startmask, nmiddle, endmask);
113 dstStride -= nmiddle;
116 * Precompute rotated versions of the rasterop values
119 xor = FbRot24(xor,rotS);
120 and = FbRot24(and,rotS);
125 xor = FbNext24Pix(xor);
126 and = FbNext24Pix(and);
133 xor1 = FbNext24Pix(xor0);
134 and1 = FbNext24Pix(and0);
135 xor2 = FbNext24Pix(xor1);
136 and2 = FbNext24Pix(and1);
141 switch (nmiddle % 3) {
161 WRITE(dst, FbDoMaskRRop(READ(dst), andS, xorS, startmask));
188 WRITE(dst, FbDoRRop (READ(dst), and0, xor0));
190 WRITE(dst, FbDoRRop (READ(dst), and1, xor1));
192 WRITE(dst, FbDoRRop (READ(dst), and2, xor2));
198 WRITE(dst, FbDoRRop (READ(dst), and0, xor0));
203 WRITE(dst, FbDoRRop (READ(dst), and1, xor1));
209 WRITE(dst, FbDoMaskRRop (READ(dst), andE, xorE, endmask));