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Initial revision
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Kaleb Keithley
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364
fb/fbimage.c
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364
fb/fbimage.c
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/*
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* Id: fbimage.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/fbimage.c,v 1.8 2001/09/07 15:15:31 keithp Exp $ */
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#include "fb.h"
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#ifdef XFree86LOADER
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#include "xf86.h"
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#include "xf86_ansic.h"
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#endif
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void
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fbPutImage (DrawablePtr pDrawable,
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GCPtr pGC,
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int depth,
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int x,
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int y,
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int w,
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int h,
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int leftPad,
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int format,
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char *pImage)
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{
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FbGCPrivPtr pPriv = fbGetGCPrivate(pGC);
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unsigned long i;
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FbStride srcStride;
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FbStip *src = (FbStip *) pImage;
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x += pDrawable->x;
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y += pDrawable->y;
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switch (format)
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{
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case XYBitmap:
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srcStride = BitmapBytePad(w + leftPad) / sizeof (FbStip);
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fbPutXYImage (pDrawable,
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fbGetCompositeClip(pGC),
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pPriv->fg,
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pPriv->bg,
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pPriv->pm,
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pGC->alu,
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TRUE,
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x, y, w, h,
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src,
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srcStride,
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leftPad);
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break;
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case XYPixmap:
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srcStride = BitmapBytePad(w + leftPad) / sizeof (FbStip);
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for (i = 1 << (pDrawable->depth - 1); i; i >>= 1)
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{
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if (i & pGC->planemask)
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{
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fbPutXYImage (pDrawable,
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fbGetCompositeClip(pGC),
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FB_ALLONES,
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0,
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fbReplicatePixel (i, pDrawable->bitsPerPixel),
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pGC->alu,
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TRUE,
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x, y, w, h,
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src,
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srcStride,
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leftPad);
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src += srcStride * h;
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}
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}
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break;
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case ZPixmap:
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#ifdef FB_24_32BIT
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if (pDrawable->bitsPerPixel != BitsPerPixel(pDrawable->depth))
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{
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srcStride = PixmapBytePad(w, pDrawable->depth);
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fb24_32PutZImage (pDrawable,
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fbGetCompositeClip(pGC),
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pGC->alu,
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(FbBits) pGC->planemask,
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x, y, w, h,
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(CARD8 *) pImage,
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srcStride);
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}
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else
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#endif
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{
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srcStride = PixmapBytePad(w, pDrawable->depth) / sizeof (FbStip);
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fbPutZImage (pDrawable,
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fbGetCompositeClip(pGC),
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pGC->alu,
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pPriv->pm,
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x, y, w, h,
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src, srcStride);
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}
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}
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}
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void
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fbPutZImage (DrawablePtr pDrawable,
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RegionPtr pClip,
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int alu,
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FbBits pm,
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int x,
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int y,
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int width,
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int height,
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FbStip *src,
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FbStride srcStride)
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{
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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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int nbox;
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BoxPtr pbox;
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int x1, y1, x2, y2;
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fbGetStipDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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for (nbox = REGION_NUM_RECTS (pClip),
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pbox = REGION_RECTS(pClip);
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nbox--;
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pbox++)
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{
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x1 = x;
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y1 = y;
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x2 = x + width;
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y2 = y + height;
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if (x1 < pbox->x1)
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x1 = pbox->x1;
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if (y1 < pbox->y1)
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y1 = pbox->y1;
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if (x2 > pbox->x2)
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x2 = pbox->x2;
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if (y2 > pbox->y2)
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y2 = pbox->y2;
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if (x1 >= x2 || y1 >= y2)
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continue;
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fbBltStip (src + (y1 - y) * srcStride,
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srcStride,
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(x1 - x) * dstBpp,
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dst + (y1 + dstYoff) * dstStride,
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dstStride,
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(x1 + dstXoff) * dstBpp,
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(x2 - x1) * dstBpp,
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(y2 - y1),
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alu,
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pm,
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dstBpp);
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}
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}
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void
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fbPutXYImage (DrawablePtr pDrawable,
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RegionPtr pClip,
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FbBits fg,
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FbBits bg,
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FbBits pm,
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int alu,
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Bool opaque,
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int x,
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int y,
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int width,
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int height,
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FbStip *src,
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FbStride srcStride,
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int srcX)
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{
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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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int nbox;
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BoxPtr pbox;
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int x1, y1, x2, y2;
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FbBits fgand = 0, fgxor = 0, bgand = 0, bgxor = 0;
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fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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if (dstBpp == 1)
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{
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if (opaque)
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alu = FbOpaqueStipple1Rop(alu,fg,bg);
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else
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alu = FbStipple1Rop(alu,fg);
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}
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else
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{
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fgand = fbAnd(alu,fg,pm);
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fgxor = fbXor(alu,fg,pm);
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if (opaque)
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{
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bgand = fbAnd(alu,bg,pm);
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bgxor = fbXor(alu,bg,pm);
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}
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else
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{
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bgand = fbAnd(GXnoop,(FbBits)0,FB_ALLONES);
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bgxor = fbXor(GXnoop,(FbBits)0,FB_ALLONES);
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}
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}
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for (nbox = REGION_NUM_RECTS (pClip),
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pbox = REGION_RECTS(pClip);
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nbox--;
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pbox++)
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{
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x1 = x;
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y1 = y;
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x2 = x + width;
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y2 = y + height;
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if (x1 < pbox->x1)
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x1 = pbox->x1;
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if (y1 < pbox->y1)
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y1 = pbox->y1;
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if (x2 > pbox->x2)
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x2 = pbox->x2;
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if (y2 > pbox->y2)
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y2 = pbox->y2;
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if (x1 >= x2 || y1 >= y2)
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continue;
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if (dstBpp == 1)
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{
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fbBltStip (src + (y1 - y) * srcStride,
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srcStride,
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(x1 - x) + srcX,
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(FbStip *) (dst + (y1 + dstYoff) * dstStride),
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FbBitsStrideToStipStride(dstStride),
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(x1 + dstXoff) * dstBpp,
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(x2 - x1) * dstBpp,
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(y2 - y1),
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alu,
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pm,
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dstBpp);
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}
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else
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{
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fbBltOne (src + (y1 - y) * srcStride,
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srcStride,
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(x1 - x) + srcX,
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dst + (y1 + dstYoff) * dstStride,
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dstStride,
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(x1 + dstXoff) * dstBpp,
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dstBpp,
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(x2 - x1) * dstBpp,
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(y2 - y1),
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fgand, fgxor, bgand, bgxor);
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}
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}
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}
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void
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fbGetImage (DrawablePtr pDrawable,
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int x,
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int y,
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int w,
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int h,
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unsigned int format,
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unsigned long planeMask,
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char *d)
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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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/*
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* XFree86 DDX empties the root borderClip when the VT is
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* switched away; this checks for that case
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*/
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if (!fbDrawableEnabled(pDrawable))
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return;
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#ifdef FB_24_32BIT
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if (format == ZPixmap &&
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pDrawable->bitsPerPixel != BitsPerPixel (pDrawable->depth))
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{
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fb24_32GetImage (pDrawable, x, y, w, h, format, planeMask, d);
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return;
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}
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#endif
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fbGetDrawable (pDrawable, src, srcStride, srcBpp, srcXoff, srcYoff);
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x += pDrawable->x;
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y += pDrawable->y;
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dst = (FbStip *) d;
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if (format == ZPixmap || srcBpp == 1)
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{
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FbBits pm;
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pm = fbReplicatePixel (planeMask, srcBpp);
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dstStride = PixmapBytePad(w, pDrawable->depth);
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if (pm != FB_ALLONES)
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memset (d, 0, dstStride * h);
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dstStride /= sizeof (FbStip);
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fbBltStip ((FbStip *) (src + (y + srcYoff) * srcStride),
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FbBitsStrideToStipStride(srcStride),
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(x + srcXoff) * srcBpp,
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dst,
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dstStride,
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0,
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w * srcBpp, h,
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GXcopy,
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pm,
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srcBpp);
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}
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else
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{
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dstStride = BitmapBytePad(w) / sizeof (FbStip);
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fbBltPlane (src + (y + srcYoff) * srcStride,
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srcStride,
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(x + srcXoff) * srcBpp,
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srcBpp,
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dst,
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dstStride,
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0,
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w * srcBpp, h,
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fbAndStip(GXcopy,FB_STIP_ALLONES,FB_STIP_ALLONES),
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fbXorStip(GXcopy,FB_STIP_ALLONES,FB_STIP_ALLONES),
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fbAndStip(GXcopy,0,FB_STIP_ALLONES),
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fbXorStip(GXcopy,0,FB_STIP_ALLONES),
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planeMask);
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}
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}
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