659 lines
16 KiB
C
659 lines
16 KiB
C
/*
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* Id: fbcopy.c,v 1.1 1999/11/02 03:54:45 keithp Exp $
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*
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* Copyright © 1998 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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/* $XFree86: xc/programs/Xserver/fb/fbcopy.c,v 1.13 2003/11/10 18:21:47 tsi Exp $ */
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#include "fb.h"
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#ifdef IN_MODULE
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#include "xf86_ansic.h"
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#endif
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#include "fbmmx.h"
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void
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fbCopyNtoN (DrawablePtr pSrcDrawable,
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DrawablePtr pDstDrawable,
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GCPtr pGC,
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BoxPtr pbox,
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int nbox,
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int dx,
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int dy,
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Bool reverse,
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Bool upsidedown,
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Pixel bitplane,
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void *closure)
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{
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CARD8 alu = pGC ? pGC->alu : GXcopy;
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FbBits pm = pGC ? fbGetGCPrivate(pGC)->pm : FB_ALLONES;
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FbBits *src;
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FbStride srcStride;
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int srcBpp;
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int srcXoff, srcYoff;
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FbBits *dst;
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FbStride dstStride;
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int dstBpp;
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int dstXoff, dstYoff;
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fbGetDrawable (pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
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fbGetDrawable (pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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while (nbox--)
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{
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#ifdef USE_MMX
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if (!reverse && !upsidedown && fbHaveMMX())
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{
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if (!fbCopyAreammx (pSrcDrawable,
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pDstDrawable,
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(pbox->x1 + dx + srcXoff),
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(pbox->y1 + dy + srcYoff),
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(pbox->x1 + dstXoff),
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(pbox->y1 + dstYoff),
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(pbox->x2 - pbox->x1),
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(pbox->y2 - pbox->y1)))
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goto fallback;
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else
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goto next;
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}
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fallback:
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#endif
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fbBlt (src + (pbox->y1 + dy + srcYoff) * srcStride,
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srcStride,
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(pbox->x1 + dx + srcXoff) * srcBpp,
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dst + (pbox->y1 + dstYoff) * dstStride,
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dstStride,
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(pbox->x1 + dstXoff) * dstBpp,
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(pbox->x2 - pbox->x1) * dstBpp,
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(pbox->y2 - pbox->y1),
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alu,
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pm,
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dstBpp,
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reverse,
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upsidedown);
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#ifdef USE_MMX
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next:
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#endif
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pbox++;
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}
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}
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void
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fbCopy1toN (DrawablePtr pSrcDrawable,
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DrawablePtr pDstDrawable,
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GCPtr pGC,
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BoxPtr pbox,
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int nbox,
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int dx,
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int dy,
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Bool reverse,
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Bool upsidedown,
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Pixel bitplane,
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void *closure)
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{
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FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
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FbBits *src;
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FbStride srcStride;
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int srcBpp;
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int srcXoff, srcYoff;
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FbBits *dst;
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FbStride dstStride;
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int dstBpp;
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int dstXoff, dstYoff;
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fbGetDrawable (pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
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fbGetDrawable (pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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while (nbox--)
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{
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if (dstBpp == 1)
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{
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fbBlt (src + (pbox->y1 + dy + srcYoff) * srcStride,
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srcStride,
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(pbox->x1 + dx + srcXoff) * srcBpp,
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dst + (pbox->y1 + dstYoff) * dstStride,
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dstStride,
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(pbox->x1 + dstXoff) * dstBpp,
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(pbox->x2 - pbox->x1) * dstBpp,
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(pbox->y2 - pbox->y1),
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FbOpaqueStipple1Rop(pGC->alu,
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pGC->fgPixel,pGC->bgPixel),
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pPriv->pm,
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dstBpp,
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reverse,
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upsidedown);
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}
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else
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{
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fbBltOne ((FbStip *) (src + (pbox->y1 + dy + srcYoff) * srcStride),
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srcStride*(FB_UNIT/FB_STIP_UNIT),
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(pbox->x1 + dx + srcXoff),
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dst + (pbox->y1 + dstYoff) * dstStride,
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dstStride,
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(pbox->x1 + dstXoff) * dstBpp,
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dstBpp,
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(pbox->x2 - pbox->x1) * dstBpp,
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(pbox->y2 - pbox->y1),
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pPriv->and, pPriv->xor,
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pPriv->bgand, pPriv->bgxor);
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}
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pbox++;
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}
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}
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void
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fbCopyNto1 (DrawablePtr pSrcDrawable,
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DrawablePtr pDstDrawable,
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GCPtr pGC,
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BoxPtr pbox,
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int nbox,
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int dx,
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int dy,
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Bool reverse,
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Bool upsidedown,
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Pixel bitplane,
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void *closure)
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{
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FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
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while (nbox--)
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{
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if (pDstDrawable->bitsPerPixel == 1)
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{
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FbBits *src;
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FbStride srcStride;
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int srcBpp;
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int srcXoff, srcYoff;
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FbStip *dst;
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FbStride dstStride;
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int dstBpp;
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int dstXoff, dstYoff;
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fbGetDrawable (pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
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fbGetStipDrawable (pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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fbBltPlane (src + (pbox->y1+ dy + srcYoff) * srcStride,
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srcStride,
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(pbox->x1 + dx + srcXoff) * srcBpp,
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srcBpp,
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dst + (pbox->y1 + dstYoff) * dstStride,
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dstStride,
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(pbox->x1 + dstXoff) * dstBpp,
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(pbox->x2 - pbox->x1) * srcBpp,
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(pbox->y2 - pbox->y1),
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(FbStip) pPriv->and, (FbStip) pPriv->xor,
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(FbStip) pPriv->bgand, (FbStip) pPriv->bgxor,
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bitplane);
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}
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else
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{
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FbBits *src;
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FbStride srcStride;
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int srcBpp;
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int srcXoff, srcYoff;
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FbBits *dst;
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FbStride dstStride;
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int dstBpp;
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int dstXoff, dstYoff;
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FbStip *tmp;
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FbStride tmpStride;
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int width, height;
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width = pbox->x2 - pbox->x1;
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height = pbox->y2 - pbox->y1;
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tmpStride = ((width + FB_STIP_MASK) >> FB_STIP_SHIFT);
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tmp = xalloc (tmpStride * height * sizeof (FbStip));
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if (!tmp)
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return;
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fbGetDrawable (pSrcDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
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fbGetDrawable (pDstDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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fbBltPlane (src + (pbox->y1+ dy + srcYoff) * srcStride,
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srcStride,
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(pbox->x1 + dx + srcXoff) * srcBpp,
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srcBpp,
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tmp,
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tmpStride,
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0,
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width * srcBpp,
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height,
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fbAndStip(GXcopy,FB_ALLONES,FB_ALLONES),
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fbXorStip(GXcopy,FB_ALLONES,FB_ALLONES),
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fbAndStip(GXcopy,0,FB_ALLONES),
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fbXorStip(GXcopy,0,FB_ALLONES),
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bitplane);
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fbBltOne (tmp,
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tmpStride,
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0,
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dst + (pbox->y1 + dstYoff) * dstStride,
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dstStride,
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(pbox->x1 + dstXoff) * dstBpp,
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dstBpp,
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width * dstBpp,
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height,
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pPriv->and, pPriv->xor,
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pPriv->bgand, pPriv->bgxor);
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xfree (tmp);
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}
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pbox++;
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}
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}
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void
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fbCopyRegion (DrawablePtr pSrcDrawable,
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DrawablePtr pDstDrawable,
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GCPtr pGC,
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RegionPtr pDstRegion,
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int dx,
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int dy,
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fbCopyProc copyProc,
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Pixel bitPlane,
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void *closure)
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{
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int careful;
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Bool reverse;
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Bool upsidedown;
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BoxPtr pbox;
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int nbox;
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BoxPtr pboxNew1, pboxNew2, pboxBase, pboxNext, pboxTmp;
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pbox = REGION_RECTS(pDstRegion);
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nbox = REGION_NUM_RECTS(pDstRegion);
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/* XXX we have to err on the side of safety when both are windows,
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* because we don't know if IncludeInferiors is being used.
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*/
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careful = ((pSrcDrawable == pDstDrawable) ||
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((pSrcDrawable->type == DRAWABLE_WINDOW) &&
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(pDstDrawable->type == DRAWABLE_WINDOW)));
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pboxNew1 = NULL;
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pboxNew2 = NULL;
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if (careful && dy < 0)
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{
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upsidedown = TRUE;
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if (nbox > 1)
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{
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/* keep ordering in each band, reverse order of bands */
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pboxNew1 = (BoxPtr)ALLOCATE_LOCAL(sizeof(BoxRec) * nbox);
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if(!pboxNew1)
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return;
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pboxBase = pboxNext = pbox+nbox-1;
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while (pboxBase >= pbox)
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{
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while ((pboxNext >= pbox) &&
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(pboxBase->y1 == pboxNext->y1))
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pboxNext--;
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pboxTmp = pboxNext+1;
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while (pboxTmp <= pboxBase)
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{
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*pboxNew1++ = *pboxTmp++;
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}
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pboxBase = pboxNext;
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}
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pboxNew1 -= nbox;
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pbox = pboxNew1;
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}
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}
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else
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{
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/* walk source top to bottom */
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upsidedown = FALSE;
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}
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if (careful && dx < 0)
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{
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/* walk source right to left */
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if (dy <= 0)
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reverse = TRUE;
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else
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reverse = FALSE;
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if (nbox > 1)
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{
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/* reverse order of rects in each band */
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pboxNew2 = (BoxPtr)ALLOCATE_LOCAL(sizeof(BoxRec) * nbox);
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if(!pboxNew2)
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{
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if (pboxNew1)
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DEALLOCATE_LOCAL(pboxNew1);
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return;
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}
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pboxBase = pboxNext = pbox;
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while (pboxBase < pbox+nbox)
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{
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while ((pboxNext < pbox+nbox) &&
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(pboxNext->y1 == pboxBase->y1))
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pboxNext++;
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pboxTmp = pboxNext;
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while (pboxTmp != pboxBase)
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{
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*pboxNew2++ = *--pboxTmp;
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}
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pboxBase = pboxNext;
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}
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pboxNew2 -= nbox;
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pbox = pboxNew2;
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}
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}
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else
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{
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/* walk source left to right */
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reverse = FALSE;
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}
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(*copyProc) (pSrcDrawable,
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pDstDrawable,
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pGC,
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pbox,
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nbox,
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dx, dy,
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reverse, upsidedown, bitPlane, closure);
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if (pboxNew1)
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DEALLOCATE_LOCAL (pboxNew1);
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if (pboxNew2)
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DEALLOCATE_LOCAL (pboxNew2);
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}
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RegionPtr
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fbDoCopy (DrawablePtr pSrcDrawable,
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DrawablePtr pDstDrawable,
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GCPtr pGC,
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int xIn,
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int yIn,
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int widthSrc,
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int heightSrc,
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int xOut,
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int yOut,
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fbCopyProc copyProc,
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Pixel bitPlane,
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void *closure)
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{
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RegionPtr prgnSrcClip = NULL; /* may be a new region, or just a copy */
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Bool freeSrcClip = FALSE;
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RegionPtr prgnExposed = NULL;
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RegionRec rgnDst;
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int dx;
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int dy;
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int numRects;
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int box_x1;
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int box_y1;
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int box_x2;
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int box_y2;
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Bool fastSrc = FALSE; /* for fast clipping with pixmap source */
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Bool fastDst = FALSE; /* for fast clipping with one rect dest */
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Bool fastExpose = FALSE; /* for fast exposures with pixmap source */
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/* Short cut for unmapped windows */
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if (pDstDrawable->type == DRAWABLE_WINDOW &&
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!((WindowPtr)pDstDrawable)->realized)
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{
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return NULL;
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}
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if ((pSrcDrawable != pDstDrawable) &&
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pSrcDrawable->pScreen->SourceValidate)
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{
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(*pSrcDrawable->pScreen->SourceValidate) (pSrcDrawable, xIn, yIn, widthSrc, heightSrc);
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}
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/* Compute source clip region */
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if (pSrcDrawable->type == DRAWABLE_PIXMAP)
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{
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if ((pSrcDrawable == pDstDrawable) && (pGC->clientClipType == CT_NONE))
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prgnSrcClip = fbGetCompositeClip(pGC);
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else
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fastSrc = TRUE;
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}
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else
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{
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if (pGC->subWindowMode == IncludeInferiors)
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{
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/*
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* XFree86 DDX empties the border clip when the
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* VT is inactive, make sure the region isn't empty
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*/
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if (!((WindowPtr) pSrcDrawable)->parent &&
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REGION_NOTEMPTY (pSrcDrawable->pScreen,
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&((WindowPtr) pSrcDrawable)->borderClip))
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{
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/*
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* special case bitblt from root window in
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* IncludeInferiors mode; just like from a pixmap
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*/
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fastSrc = TRUE;
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}
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else if ((pSrcDrawable == pDstDrawable) &&
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(pGC->clientClipType == CT_NONE))
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{
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prgnSrcClip = fbGetCompositeClip(pGC);
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}
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else
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{
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prgnSrcClip = NotClippedByChildren((WindowPtr)pSrcDrawable);
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freeSrcClip = TRUE;
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}
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}
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else
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{
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prgnSrcClip = &((WindowPtr)pSrcDrawable)->clipList;
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}
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}
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xIn += pSrcDrawable->x;
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yIn += pSrcDrawable->y;
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xOut += pDstDrawable->x;
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yOut += pDstDrawable->y;
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box_x1 = xIn;
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box_y1 = yIn;
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box_x2 = xIn + widthSrc;
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box_y2 = yIn + heightSrc;
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dx = xIn - xOut;
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dy = yIn - yOut;
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/* Don't create a source region if we are doing a fast clip */
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if (fastSrc)
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{
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RegionPtr cclip;
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fastExpose = TRUE;
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/*
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* clip the source; if regions extend beyond the source size,
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* make sure exposure events get sent
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*/
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if (box_x1 < pSrcDrawable->x)
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{
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box_x1 = pSrcDrawable->x;
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fastExpose = FALSE;
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}
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if (box_y1 < pSrcDrawable->y)
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{
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box_y1 = pSrcDrawable->y;
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fastExpose = FALSE;
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}
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if (box_x2 > pSrcDrawable->x + (int) pSrcDrawable->width)
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{
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box_x2 = pSrcDrawable->x + (int) pSrcDrawable->width;
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fastExpose = FALSE;
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}
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if (box_y2 > pSrcDrawable->y + (int) pSrcDrawable->height)
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{
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box_y2 = pSrcDrawable->y + (int) pSrcDrawable->height;
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fastExpose = FALSE;
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}
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/* Translate and clip the dst to the destination composite clip */
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box_x1 -= dx;
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box_x2 -= dx;
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box_y1 -= dy;
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box_y2 -= dy;
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/* If the destination composite clip is one rectangle we can
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do the clip directly. Otherwise we have to create a full
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blown region and call intersect */
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|
|
cclip = fbGetCompositeClip(pGC);
|
|
if (REGION_NUM_RECTS(cclip) == 1)
|
|
{
|
|
BoxPtr pBox = REGION_RECTS(cclip);
|
|
|
|
if (box_x1 < pBox->x1) box_x1 = pBox->x1;
|
|
if (box_x2 > pBox->x2) box_x2 = pBox->x2;
|
|
if (box_y1 < pBox->y1) box_y1 = pBox->y1;
|
|
if (box_y2 > pBox->y2) box_y2 = pBox->y2;
|
|
fastDst = TRUE;
|
|
}
|
|
}
|
|
|
|
/* Check to see if the region is empty */
|
|
if (box_x1 >= box_x2 || box_y1 >= box_y2)
|
|
{
|
|
REGION_NULL(pGC->pScreen, &rgnDst);
|
|
}
|
|
else
|
|
{
|
|
BoxRec box;
|
|
box.x1 = box_x1;
|
|
box.y1 = box_y1;
|
|
box.x2 = box_x2;
|
|
box.y2 = box_y2;
|
|
REGION_INIT(pGC->pScreen, &rgnDst, &box, 1);
|
|
}
|
|
|
|
/* Clip against complex source if needed */
|
|
if (!fastSrc)
|
|
{
|
|
REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst, prgnSrcClip);
|
|
REGION_TRANSLATE(pGC->pScreen, &rgnDst, -dx, -dy);
|
|
}
|
|
|
|
/* Clip against complex dest if needed */
|
|
if (!fastDst)
|
|
{
|
|
REGION_INTERSECT(pGC->pScreen, &rgnDst, &rgnDst,
|
|
fbGetCompositeClip(pGC));
|
|
}
|
|
|
|
/* Do bit blitting */
|
|
numRects = REGION_NUM_RECTS(&rgnDst);
|
|
if (numRects && widthSrc && heightSrc)
|
|
fbCopyRegion (pSrcDrawable, pDstDrawable, pGC,
|
|
&rgnDst, dx, dy, copyProc, bitPlane, closure);
|
|
|
|
/* Pixmap sources generate a NoExposed (we return NULL to do this) */
|
|
if (!fastExpose && pGC->fExpose)
|
|
prgnExposed = miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
|
|
xIn - pSrcDrawable->x,
|
|
yIn - pSrcDrawable->y,
|
|
widthSrc, heightSrc,
|
|
xOut - pDstDrawable->x,
|
|
yOut - pDstDrawable->y,
|
|
(unsigned long) bitPlane);
|
|
REGION_UNINIT(pGC->pScreen, &rgnDst);
|
|
if (freeSrcClip)
|
|
REGION_DESTROY(pGC->pScreen, prgnSrcClip);
|
|
fbValidateDrawable (pDstDrawable);
|
|
return prgnExposed;
|
|
}
|
|
|
|
RegionPtr
|
|
fbCopyArea (DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
int xIn,
|
|
int yIn,
|
|
int widthSrc,
|
|
int heightSrc,
|
|
int xOut,
|
|
int yOut)
|
|
{
|
|
fbCopyProc copy;
|
|
|
|
#ifdef FB_24_32BIT
|
|
if (pSrcDrawable->bitsPerPixel != pDstDrawable->bitsPerPixel)
|
|
copy = fb24_32CopyMtoN;
|
|
else
|
|
#endif
|
|
copy = fbCopyNtoN;
|
|
return fbDoCopy (pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
|
|
widthSrc, heightSrc, xOut, yOut, copy, 0, 0);
|
|
}
|
|
|
|
RegionPtr
|
|
fbCopyPlane (DrawablePtr pSrcDrawable,
|
|
DrawablePtr pDstDrawable,
|
|
GCPtr pGC,
|
|
int xIn,
|
|
int yIn,
|
|
int widthSrc,
|
|
int heightSrc,
|
|
int xOut,
|
|
int yOut,
|
|
unsigned long bitplane)
|
|
{
|
|
if (pSrcDrawable->bitsPerPixel > 1)
|
|
return fbDoCopy (pSrcDrawable, pDstDrawable, pGC,
|
|
xIn, yIn, widthSrc, heightSrc,
|
|
xOut, yOut, fbCopyNto1, (Pixel) bitplane, 0);
|
|
else if (bitplane & 1)
|
|
return fbDoCopy (pSrcDrawable, pDstDrawable, pGC, xIn, yIn,
|
|
widthSrc, heightSrc, xOut, yOut, fbCopy1toN,
|
|
(Pixel) bitplane, 0);
|
|
else
|
|
return miHandleExposures(pSrcDrawable, pDstDrawable, pGC,
|
|
xIn, yIn,
|
|
widthSrc,
|
|
heightSrc,
|
|
xOut, yOut, bitplane);
|
|
}
|