| 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 | } |