diff options
Diffstat (limited to 'xorg-server/fb/fbpush.c')
| -rw-r--r-- | xorg-server/fb/fbpush.c | 245 |
1 files changed, 245 insertions, 0 deletions
diff --git a/xorg-server/fb/fbpush.c b/xorg-server/fb/fbpush.c new file mode 100644 index 000000000..891572f0d --- /dev/null +++ b/xorg-server/fb/fbpush.c @@ -0,0 +1,245 @@ +/* + * Copyright © 1998 Keith Packard + * + * Permission to use, copy, modify, distribute, and sell this software and its + * documentation for any purpose is hereby granted without fee, provided that + * the above copyright notice appear in all copies and that both that + * copyright notice and this permission notice appear in supporting + * documentation, and that the name of Keith Packard not be used in + * advertising or publicity pertaining to distribution of the software without + * specific, written prior permission. Keith Packard makes no + * representations about the suitability of this software for any purpose. It + * is provided "as is" without express or implied warranty. + * + * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, + * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO + * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR + * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER + * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR + * PERFORMANCE OF THIS SOFTWARE. + */ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include "fb.h" + +void +fbPushPattern (DrawablePtr pDrawable, + GCPtr pGC, + + FbStip *src, + FbStride srcStride, + int srcX, + + int x, + int y, + + int width, + int height) +{ + FbStip *s, bitsMask, bitsMask0, bits; + int xspan; + int w; + int lenspan; + + src += srcX >> FB_STIP_SHIFT; + srcX &= FB_STIP_MASK; + + bitsMask0 = FbStipMask (srcX, 1); + + while (height--) + { + bitsMask = bitsMask0; + w = width; + s = src; + src += srcStride; + bits = READ(s++); + xspan = x; + while (w) + { + if (bits & bitsMask) + { + lenspan = 0; + do + { + lenspan++; + if (lenspan == w) + break; + bitsMask = FbStipRight (bitsMask, 1); + if (!bitsMask) + { + bits = READ(s++); + bitsMask = FbBitsMask(0,1); + } + } while (bits & bitsMask); + fbFill (pDrawable, pGC, xspan, y, lenspan, 1); + xspan += lenspan; + w -= lenspan; + } + else + { + do + { + w--; + xspan++; + if (!w) + break; + bitsMask = FbStipRight (bitsMask, 1); + if (!bitsMask) + { + bits = READ(s++); + bitsMask = FbBitsMask(0,1); + } + } while (!(bits & bitsMask)); + } + } + y++; + } +} + +void +fbPushFill (DrawablePtr pDrawable, + GCPtr pGC, + + FbStip *src, + FbStride srcStride, + int srcX, + + int x, + int y, + int width, + int height) +{ + FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); + + if (pGC->fillStyle == FillSolid) + { + FbBits *dst; + FbStride dstStride; + int dstBpp; + int dstXoff, dstYoff; + int dstX; + int dstWidth; + + fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); + dst = dst + (y + dstYoff) * dstStride; + dstX = (x + dstXoff) * dstBpp; + dstWidth = width * dstBpp; + if (dstBpp == 1) + { + fbBltStip (src, + srcStride, + srcX, + + (FbStip *) dst, + FbBitsStrideToStipStride (dstStride), + dstX, + + dstWidth, + height, + + FbStipple1Rop(pGC->alu,pGC->fgPixel), + pPriv->pm, + dstBpp); + } + else + { + fbBltOne (src, + srcStride, + srcX, + + dst, + dstStride, + dstX, + dstBpp, + + dstWidth, + height, + + pPriv->and, pPriv->xor, + fbAnd(GXnoop,(FbBits) 0,FB_ALLONES), + fbXor(GXnoop,(FbBits) 0,FB_ALLONES)); + } + fbFinishAccess (pDrawable); + } + else + { + fbPushPattern (pDrawable, pGC, src, srcStride, srcX, + x, y, width, height); + } +} + +void +fbPushImage (DrawablePtr pDrawable, + GCPtr pGC, + + FbStip *src, + FbStride srcStride, + int srcX, + + int x, + int y, + int width, + int height) +{ + RegionPtr pClip = fbGetCompositeClip (pGC); + int nbox; + BoxPtr pbox; + int x1, y1, x2, y2; + + for (nbox = REGION_NUM_RECTS (pClip), + pbox = REGION_RECTS(pClip); + nbox--; + pbox++) + { + x1 = x; + y1 = y; + x2 = x + width; + y2 = y + height; + if (x1 < pbox->x1) + x1 = pbox->x1; + if (y1 < pbox->y1) + y1 = pbox->y1; + if (x2 > pbox->x2) + x2 = pbox->x2; + if (y2 > pbox->y2) + y2 = pbox->y2; + if (x1 >= x2 || y1 >= y2) + continue; + fbPushFill (pDrawable, + pGC, + + src + (y1 - y) * srcStride, + srcStride, + srcX + (x1 - x), + + x1, + y1, + x2 - x1, + y2 - y1); + } +} + +void +fbPushPixels (GCPtr pGC, + PixmapPtr pBitmap, + DrawablePtr pDrawable, + int dx, + int dy, + int xOrg, + int yOrg) +{ + FbStip *stip; + FbStride stipStride; + int stipBpp; + int stipXoff, stipYoff; /* Assumed to be zero */ + + fbGetStipDrawable (&pBitmap->drawable, stip, stipStride, stipBpp, stipXoff, stipYoff); + + fbPushImage (pDrawable, pGC, + stip, stipStride, 0, + xOrg, yOrg, dx, dy); +} |