xserver-multidpi/fb/fbsolid.c

66 lines
2.2 KiB
C

/*
* 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.
*/
#define FbSelectPart(xor,o,t) xor
#ifdef HAVE_DIX_CONFIG_H
#include <dix-config.h>
#endif
#include "fb.h"
void
fbSolid(FbBits * dst,
FbStride dstStride,
int dstX, int bpp, int width, int height, FbBits and, FbBits xor)
{
FbBits startmask, endmask;
int n, nmiddle;
int startbyte, endbyte;
dst += dstX >> FB_SHIFT;
dstX &= FB_MASK;
FbMaskBitsBytes(dstX, width, and == 0, startmask, startbyte,
nmiddle, endmask, endbyte);
if (startmask)
dstStride--;
dstStride -= nmiddle;
while (height--) {
if (startmask) {
FbDoLeftMaskByteRRop(dst, startbyte, startmask, and, xor);
dst++;
}
n = nmiddle;
if (!and)
while (n--)
WRITE(dst++, xor);
else
while (n--) {
WRITE(dst, FbDoRRop(READ(dst), and, xor));
dst++;
}
if (endmask)
FbDoRightMaskByteRRop(dst, endbyte, endmask, and, xor);
dst += dstStride;
}
}