109 lines
3.0 KiB
C
109 lines
3.0 KiB
C
/*
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* Accelerated rootless fill
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*/
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/*
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* This code is largely copied from fbsolid.c.
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*
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* Copyright © 1998 Keith Packard
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* Copyright (c) 2002 Apple Computer, Inc. All Rights Reserved.
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* Copyright (c) 2003 Torrey T. Lyons. All Rights Reserved.
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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/fbsolid.c,v 1.8 2001/10/28 03:33:08 tsi Exp $ */
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#include "fb.h"
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#include "rootlessCommon.h"
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void
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rlSolid (ScreenPtr pScreen,
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FbBits *dst,
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FbStride dstStride,
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int dstX,
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int bpp,
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int width,
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int height,
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FbBits and,
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FbBits xor)
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{
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FbBits startmask, endmask;
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int n, nmiddle;
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int startbyte, endbyte;
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#ifdef FB_24BIT
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if (bpp == 24 && (!FbCheck24Pix(and) || !FbCheck24Pix(xor)))
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{
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fbSolid24 (dst, dstStride, dstX, width, height, and, xor);
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return;
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}
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#endif
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dst += dstX >> FB_SHIFT;
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dstX &= FB_MASK;
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FbMaskBitsBytes(dstX, width, and == 0, startmask, startbyte,
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nmiddle, endmask, endbyte);
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/*
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* Beginning of the rootless acceleration code
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*/
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if (!startmask && !endmask && !and &&
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height * nmiddle * sizeof (*dst) > rootless_FillBytes_threshold &&
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SCREENREC(pScreen)->imp->FillBytes)
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{
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if (bpp <= 8)
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xor |= xor << 8;
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if (bpp <= 16)
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xor |= xor << 16;
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SCREENREC(pScreen)->imp->FillBytes(nmiddle * sizeof (*dst), height,
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xor, (char *) dst + (dstX >> 3),
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dstStride * sizeof (*dst));
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return;
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}
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/* End of the rootless acceleration code */
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if (startmask)
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dstStride--;
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dstStride -= nmiddle;
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while (height--)
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{
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if (startmask)
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{
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FbDoLeftMaskByteRRop(dst,startbyte,startmask,and,xor);
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dst++;
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}
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n = nmiddle;
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if (!and)
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while (n--)
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*dst++ = xor;
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else
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while (n--)
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{
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*dst = FbDoRRop (*dst, and, xor);
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dst++;
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}
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if (endmask)
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FbDoRightMaskByteRRop(dst,endbyte,endmask,and,xor);
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dst += dstStride;
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}
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}
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