/* * 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; #ifdef FB_24BIT if (bpp == 24 && (!FbCheck24Pix(and) || !FbCheck24Pix(xor))) { fbSolid24 (dst, dstStride, dstX, width, height, and, xor); return; } #endif 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; } } #ifdef FB_24BIT void fbSolid24 (FbBits *dst, FbStride dstStride, int dstX, int width, int height, FbBits and, FbBits xor) { FbBits startmask, endmask; FbBits xor0 = 0, xor1 = 0, xor2 = 0; FbBits and0 = 0, and1 = 0, and2 = 0; FbBits xorS = 0, andS = 0, xorE = 0, andE = 0; int n, nmiddle; int rotS, rot; dst += dstX >> FB_SHIFT; dstX &= FB_MASK; /* * Rotate pixel values this far across the word to align on * screen pixel boundaries */ rot = FbFirst24Rot (dstX); FbMaskBits (dstX, width, startmask, nmiddle, endmask); if (startmask) dstStride--; dstStride -= nmiddle; /* * Precompute rotated versions of the rasterop values */ rotS = rot; xor = FbRot24(xor,rotS); and = FbRot24(and,rotS); if (startmask) { xorS = xor; andS = and; xor = FbNext24Pix(xor); and = FbNext24Pix(and); } if (nmiddle) { xor0 = xor; and0 = and; xor1 = FbNext24Pix(xor0); and1 = FbNext24Pix(and0); xor2 = FbNext24Pix(xor1); and2 = FbNext24Pix(and1); } if (endmask) { switch (nmiddle % 3) { case 0: xorE = xor; andE = and; break; case 1: xorE = xor1; andE = and1; break; case 2: xorE = xor2; andE = and2; break; } } while (height--) { if (startmask) { WRITE(dst, FbDoMaskRRop(READ(dst), andS, xorS, startmask)); dst++; } n = nmiddle; if (!and0) { while (n >= 3) { WRITE(dst++, xor0); WRITE(dst++, xor1); WRITE(dst++, xor2); n -= 3; } if (n) { WRITE(dst++, xor0); n--; if (n) { WRITE(dst++, xor1); } } } else { while (n >= 3) { WRITE(dst, FbDoRRop (READ(dst), and0, xor0)); dst++; WRITE(dst, FbDoRRop (READ(dst), and1, xor1)); dst++; WRITE(dst, FbDoRRop (READ(dst), and2, xor2)); dst++; n -= 3; } if (n) { WRITE(dst, FbDoRRop (READ(dst), and0, xor0)); dst++; n--; if (n) { WRITE(dst, FbDoRRop (READ(dst), and1, xor1)); dst++; } } } if (endmask) WRITE(dst, FbDoMaskRRop (READ(dst), andE, xorE, endmask)); dst += dstStride; } } #endif