| 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 | fbSetSpans(DrawablePtr pDrawable, |
| 31 | GCPtr pGC, |
| 32 | char *src, DDXPointPtr ppt, int *pwidth, int nspans, int fSorted) |
| 33 | { |
| 34 | FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); |
| 35 | RegionPtr pClip = fbGetCompositeClip(pGC); |
| 36 | FbBits *dst, *d, *s; |
| 37 | FbStride dstStride; |
| 38 | int dstBpp; |
| 39 | int dstXoff, dstYoff; |
| 40 | BoxPtr pbox; |
| 41 | int n; |
| 42 | int xoff; |
| 43 | int x1, x2; |
| 44 | |
| 45 | if (pDrawable->bitsPerPixel != BitsPerPixel(pDrawable->depth)) { |
| 46 | fb24_32SetSpans(pDrawable, pGC, src, ppt, pwidth, nspans, fSorted); |
| 47 | return; |
| 48 | } |
| 49 | fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); |
| 50 | while (nspans--) { |
| 51 | d = dst + (ppt->y + dstYoff) * dstStride; |
| 52 | xoff = (int) (((long) src) & (FB_MASK >> 3)); |
| 53 | s = (FbBits *) (src - xoff); |
| 54 | xoff <<= 3; |
| 55 | n = RegionNumRects(pClip); |
| 56 | pbox = RegionRects(pClip); |
| 57 | while (n--) { |
| 58 | if (pbox->y1 > ppt->y) |
| 59 | break; |
| 60 | if (pbox->y2 > ppt->y) { |
| 61 | x1 = ppt->x; |
| 62 | x2 = x1 + *pwidth; |
| 63 | if (pbox->x1 > x1) |
| 64 | x1 = pbox->x1; |
| 65 | if (pbox->x2 < x2) |
| 66 | x2 = pbox->x2; |
| 67 | if (x1 < x2) |
| 68 | fbBlt((FbBits *) s, |
| 69 | 0, |
| 70 | (x1 - ppt->x) * dstBpp + xoff, |
| 71 | d, |
| 72 | dstStride, |
| 73 | (x1 + dstXoff) * dstBpp, |
| 74 | (x2 - x1) * dstBpp, |
| 75 | 1, pGC->alu, pPriv->pm, dstBpp, FALSE, FALSE); |
| 76 | } |
| 77 | } |
| 78 | src += PixmapBytePad(*pwidth, pDrawable->depth); |
| 79 | ppt++; |
| 80 | pwidth++; |
| 81 | } |
| 82 | fbValidateDrawable(pDrawable); |
| 83 | fbFinishAccess(pDrawable); |
| 84 | } |