xref: /OK3568_Linux_fs/external/xserver/fb/fbsolid.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright © 1998 Keith Packard
3*4882a593Smuzhiyun  *
4*4882a593Smuzhiyun  * Permission to use, copy, modify, distribute, and sell this software and its
5*4882a593Smuzhiyun  * documentation for any purpose is hereby granted without fee, provided that
6*4882a593Smuzhiyun  * the above copyright notice appear in all copies and that both that
7*4882a593Smuzhiyun  * copyright notice and this permission notice appear in supporting
8*4882a593Smuzhiyun  * documentation, and that the name of Keith Packard not be used in
9*4882a593Smuzhiyun  * advertising or publicity pertaining to distribution of the software without
10*4882a593Smuzhiyun  * specific, written prior permission.  Keith Packard makes no
11*4882a593Smuzhiyun  * representations about the suitability of this software for any purpose.  It
12*4882a593Smuzhiyun  * is provided "as is" without express or implied warranty.
13*4882a593Smuzhiyun  *
14*4882a593Smuzhiyun  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
15*4882a593Smuzhiyun  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
16*4882a593Smuzhiyun  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
17*4882a593Smuzhiyun  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
18*4882a593Smuzhiyun  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
19*4882a593Smuzhiyun  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
20*4882a593Smuzhiyun  * PERFORMANCE OF THIS SOFTWARE.
21*4882a593Smuzhiyun  */
22*4882a593Smuzhiyun 
23*4882a593Smuzhiyun #define FbSelectPart(xor,o,t)    xor
24*4882a593Smuzhiyun 
25*4882a593Smuzhiyun #ifdef HAVE_DIX_CONFIG_H
26*4882a593Smuzhiyun #include <dix-config.h>
27*4882a593Smuzhiyun #endif
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun #include "fb.h"
30*4882a593Smuzhiyun 
31*4882a593Smuzhiyun void
fbSolid(FbBits * dst,FbStride dstStride,int dstX,int bpp,int width,int height,FbBits and,FbBits xor)32*4882a593Smuzhiyun fbSolid(FbBits * dst,
33*4882a593Smuzhiyun         FbStride dstStride,
34*4882a593Smuzhiyun         int dstX, int bpp, int width, int height, FbBits and, FbBits xor)
35*4882a593Smuzhiyun {
36*4882a593Smuzhiyun     FbBits startmask, endmask;
37*4882a593Smuzhiyun     int n, nmiddle;
38*4882a593Smuzhiyun     int startbyte, endbyte;
39*4882a593Smuzhiyun 
40*4882a593Smuzhiyun     dst += dstX >> FB_SHIFT;
41*4882a593Smuzhiyun     dstX &= FB_MASK;
42*4882a593Smuzhiyun     FbMaskBitsBytes(dstX, width, and == 0, startmask, startbyte,
43*4882a593Smuzhiyun                     nmiddle, endmask, endbyte);
44*4882a593Smuzhiyun     if (startmask)
45*4882a593Smuzhiyun         dstStride--;
46*4882a593Smuzhiyun     dstStride -= nmiddle;
47*4882a593Smuzhiyun     while (height--) {
48*4882a593Smuzhiyun         if (startmask) {
49*4882a593Smuzhiyun             FbDoLeftMaskByteRRop(dst, startbyte, startmask, and, xor);
50*4882a593Smuzhiyun             dst++;
51*4882a593Smuzhiyun         }
52*4882a593Smuzhiyun         n = nmiddle;
53*4882a593Smuzhiyun         if (!and)
54*4882a593Smuzhiyun             while (n--)
55*4882a593Smuzhiyun                 WRITE(dst++, xor);
56*4882a593Smuzhiyun         else
57*4882a593Smuzhiyun             while (n--) {
58*4882a593Smuzhiyun                 WRITE(dst, FbDoRRop(READ(dst), and, xor));
59*4882a593Smuzhiyun                 dst++;
60*4882a593Smuzhiyun             }
61*4882a593Smuzhiyun         if (endmask)
62*4882a593Smuzhiyun             FbDoRightMaskByteRRop(dst, endbyte, endmask, and, xor);
63*4882a593Smuzhiyun         dst += dstStride;
64*4882a593Smuzhiyun     }
65*4882a593Smuzhiyun }
66