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a09e091a JB |
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 "fb.h" | |
28 | ||
29 | void | |
30 | fbGetSpans(DrawablePtr pDrawable, | |
31 | int wMax, | |
32 | DDXPointPtr ppt, int *pwidth, int nspans, char *pchardstStart) | |
33 | { | |
34 | FbBits *src, *dst; | |
35 | FbStride srcStride; | |
36 | int srcBpp; | |
37 | int srcXoff, srcYoff; | |
38 | int xoff; | |
39 | ||
40 | /* | |
41 | * XFree86 DDX empties the root borderClip when the VT is | |
42 | * switched away; this checks for that case | |
43 | */ | |
44 | if (!fbDrawableEnabled(pDrawable)) | |
45 | return; | |
46 | ||
47 | if (pDrawable->bitsPerPixel != BitsPerPixel(pDrawable->depth)) { | |
48 | fb24_32GetSpans(pDrawable, wMax, ppt, pwidth, nspans, pchardstStart); | |
49 | return; | |
50 | } | |
51 | ||
52 | fbGetDrawable(pDrawable, src, srcStride, srcBpp, srcXoff, srcYoff); | |
53 | ||
54 | while (nspans--) { | |
55 | xoff = (int) (((long) pchardstStart) & (FB_MASK >> 3)); | |
56 | dst = (FbBits *) (pchardstStart - xoff); | |
57 | xoff <<= 3; | |
58 | fbBlt(src + (ppt->y + srcYoff) * srcStride, srcStride, | |
59 | (ppt->x + srcXoff) * srcBpp, | |
60 | dst, | |
61 | 1, | |
62 | xoff, | |
63 | *pwidth * srcBpp, 1, GXcopy, FB_ALLONES, srcBpp, FALSE, FALSE); | |
64 | pchardstStart += PixmapBytePad(*pwidth, pDrawable->depth); | |
65 | ppt++; | |
66 | pwidth++; | |
67 | } | |
68 | ||
69 | fbFinishAccess(pDrawable); | |
70 | } |