1 /*
2  * Copyright © 1998 Keith Packard
3  *
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.
13  *
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.
21  */
22 
23 #ifdef HAVE_DIX_CONFIG_H
24 #include <dix-config.h>
25 #endif
26 
27 #include <stdlib.h>
28 
29 #include "fb.h"
30 
31 Bool
fbCreateWindow(WindowPtr pWin)32 fbCreateWindow(WindowPtr pWin)
33 {
34     dixSetPrivate(&pWin->devPrivates, fbGetWinPrivateKey(pWin),
35                   fbGetScreenPixmap(pWin->drawable.pScreen));
36     return TRUE;
37 }
38 
39 Bool
fbDestroyWindow(WindowPtr pWin)40 fbDestroyWindow(WindowPtr pWin)
41 {
42     return TRUE;
43 }
44 
45 Bool
fbRealizeWindow(WindowPtr pWindow)46 fbRealizeWindow(WindowPtr pWindow)
47 {
48     return TRUE;
49 }
50 
51 Bool
fbPositionWindow(WindowPtr pWin,int x,int y)52 fbPositionWindow(WindowPtr pWin, int x, int y)
53 {
54     return TRUE;
55 }
56 
57 Bool
fbUnrealizeWindow(WindowPtr pWindow)58 fbUnrealizeWindow(WindowPtr pWindow)
59 {
60     return TRUE;
61 }
62 
63 void
fbCopyWindowProc(DrawablePtr pSrcDrawable,DrawablePtr pDstDrawable,GCPtr pGC,BoxPtr pbox,int nbox,int dx,int dy,Bool reverse,Bool upsidedown,Pixel bitplane,void * closure)64 fbCopyWindowProc(DrawablePtr pSrcDrawable,
65                  DrawablePtr pDstDrawable,
66                  GCPtr pGC,
67                  BoxPtr pbox,
68                  int nbox,
69                  int dx,
70                  int dy,
71                  Bool reverse, Bool upsidedown, Pixel bitplane, void *closure)
72 {
73     FbBits *src;
74     FbStride srcStride;
75     int srcBpp;
76     int srcXoff, srcYoff;
77     FbBits *dst;
78     FbStride dstStride;
79     int dstBpp;
80     int dstXoff, dstYoff;
81 
82     fbGetDrawable(pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
83     fbGetDrawable(pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
84 
85     while (nbox--) {
86         fbBlt(src + (pbox->y1 + dy + srcYoff) * srcStride,
87               srcStride,
88               (pbox->x1 + dx + srcXoff) * srcBpp,
89               dst + (pbox->y1 + dstYoff) * dstStride,
90               dstStride,
91               (pbox->x1 + dstXoff) * dstBpp,
92               (pbox->x2 - pbox->x1) * dstBpp,
93               (pbox->y2 - pbox->y1),
94               GXcopy, FB_ALLONES, dstBpp, reverse, upsidedown);
95         pbox++;
96     }
97 
98     fbFinishAccess(pDstDrawable);
99     fbFinishAccess(pSrcDrawable);
100 }
101 
102 void
fbCopyWindow(WindowPtr pWin,DDXPointRec ptOldOrg,RegionPtr prgnSrc)103 fbCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
104 {
105     RegionRec rgnDst;
106     int dx, dy;
107 
108     PixmapPtr pPixmap = fbGetWindowPixmap(pWin);
109     DrawablePtr pDrawable = &pPixmap->drawable;
110 
111     dx = ptOldOrg.x - pWin->drawable.x;
112     dy = ptOldOrg.y - pWin->drawable.y;
113     RegionTranslate(prgnSrc, -dx, -dy);
114 
115     RegionNull(&rgnDst);
116 
117     RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc);
118 
119 #ifdef COMPOSITE
120     if (pPixmap->screen_x || pPixmap->screen_y)
121         RegionTranslate(&rgnDst, -pPixmap->screen_x, -pPixmap->screen_y);
122 #endif
123 
124     miCopyRegion(pDrawable, pDrawable,
125                  0, &rgnDst, dx, dy, fbCopyWindowProc, 0, 0);
126 
127     RegionUninit(&rgnDst);
128     fbValidateDrawable(&pWin->drawable);
129 }
130 
131 static void
fbFixupWindowPixmap(DrawablePtr pDrawable,PixmapPtr * ppPixmap)132 fbFixupWindowPixmap(DrawablePtr pDrawable, PixmapPtr *ppPixmap)
133 {
134     PixmapPtr pPixmap = *ppPixmap;
135 
136     if (FbEvenTile(pPixmap->drawable.width * pPixmap->drawable.bitsPerPixel))
137         fbPadPixmap(pPixmap);
138 }
139 
140 Bool
fbChangeWindowAttributes(WindowPtr pWin,unsigned long mask)141 fbChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
142 {
143     if (mask & CWBackPixmap) {
144         if (pWin->backgroundState == BackgroundPixmap)
145             fbFixupWindowPixmap(&pWin->drawable, &pWin->background.pixmap);
146     }
147     if (mask & CWBorderPixmap) {
148         if (pWin->borderIsPixel == FALSE)
149             fbFixupWindowPixmap(&pWin->drawable, &pWin->border.pixmap);
150     }
151     return TRUE;
152 }
153 
154 void
fbFillRegionSolid(DrawablePtr pDrawable,RegionPtr pRegion,FbBits and,FbBits xor)155 fbFillRegionSolid(DrawablePtr pDrawable,
156                   RegionPtr pRegion, FbBits and, FbBits xor)
157 {
158     FbBits *dst;
159     FbStride dstStride;
160     int dstBpp;
161     int dstXoff, dstYoff;
162     int n = RegionNumRects(pRegion);
163     BoxPtr pbox = RegionRects(pRegion);
164 
165 #ifndef FB_ACCESS_WRAPPER
166     int try_mmx = 0;
167 
168     if (!and)
169         try_mmx = 1;
170 #endif
171 
172     fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
173 
174     while (n--) {
175 #ifndef FB_ACCESS_WRAPPER
176         if (!try_mmx || !pixman_fill((uint32_t *) dst, dstStride, dstBpp,
177                                      pbox->x1 + dstXoff, pbox->y1 + dstYoff,
178                                      (pbox->x2 - pbox->x1),
179                                      (pbox->y2 - pbox->y1), xor)) {
180 #endif
181             fbSolid(dst + (pbox->y1 + dstYoff) * dstStride,
182                     dstStride,
183                     (pbox->x1 + dstXoff) * dstBpp,
184                     dstBpp,
185                     (pbox->x2 - pbox->x1) * dstBpp,
186                     pbox->y2 - pbox->y1, and, xor);
187 #ifndef FB_ACCESS_WRAPPER
188         }
189 #endif
190         fbValidateDrawable(pDrawable);
191         pbox++;
192     }
193 
194     fbFinishAccess(pDrawable);
195 }
196