| 1 | /*
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| 2 | * $XFree86$
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| 3 | *
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| 4 | * Copyright © 1998 Keith Packard
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| 5 | *
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| 6 | * Permission to use, copy, modify, distribute, and sell this software and its
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| 7 | * documentation for any purpose is hereby granted without fee, provided that
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| 8 | * the above copyright notice appear in all copies and that both that
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| 9 | * copyright notice and this permission notice appear in supporting
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| 10 | * documentation, and that the name of Keith Packard not be used in
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| 11 | * advertising or publicity pertaining to distribution of the software without
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| 12 | * specific, written prior permission. Keith Packard makes no
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| 13 | * representations about the suitability of this software for any purpose. It
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| 14 | * is provided "as is" without express or implied warranty.
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| 15 | *
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| 16 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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| 17 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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| 18 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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| 19 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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| 20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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| 21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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| 22 | * PERFORMANCE OF THIS SOFTWARE.
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| 23 | */
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| 24 |
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| 25 | /*
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| 26 | * This file defines functions for drawing some primitives using
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| 27 | * underlying datatypes instead of masks
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| 28 | */
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| 29 |
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| 30 | #define isClipped(c,ul,lr) ((((c) - (ul)) | ((lr) - (c))) & 0x80008000)
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| 31 |
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| 32 | #ifdef HAVE_DIX_CONFIG_H
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| 33 | #include <dix-config.h>
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| 34 | #endif
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| 35 |
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| 36 | #ifdef BITSMUL
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| 37 | #define MUL BITSMUL
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| 38 | #else
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| 39 | #define MUL 1
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| 40 | #endif
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| 41 |
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| 42 | #ifdef BITSSTORE
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| 43 | #define STORE(b,x) BITSSTORE(b,x)
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| 44 | #else
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| 45 | #define STORE(b,x) (*(b) = (x))
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| 46 | #endif
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| 47 |
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| 48 | #ifdef BITSRROP
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| 49 | #define RROP(b,a,x) BITSRROP(b,a,x)
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| 50 | #else
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| 51 | #define RROP(b,a,x) (*(b) = FbDoRRop (*(b), (a), (x)))
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| 52 | #endif
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| 53 |
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| 54 | #ifdef BITSUNIT
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| 55 | #define UNIT BITSUNIT
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| 56 | #define USE_SOLID
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| 57 | #else
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| 58 | #define UNIT BITS
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| 59 | #endif
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| 60 |
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| 61 | /*
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| 62 | * Define the following before including this file:
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| 63 | *
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| 64 | * BRESSOLID name of function for drawing a solid segment
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| 65 | * BRESDASH name of function for drawing a dashed segment
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| 66 | * DOTS name of function for drawing dots
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| 67 | * ARC name of function for drawing a solid arc
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| 68 | * BITS type of underlying unit
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| 69 | */
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| 70 |
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| 71 | #ifdef BRESSOLID
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| 72 | void
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| 73 | BRESSOLID (DrawablePtr pDrawable,
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| 74 | GCPtr pGC,
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| 75 | int dashOffset,
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| 76 | int signdx,
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| 77 | int signdy,
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| 78 | int axis,
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| 79 | int x1,
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| 80 | int y1,
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| 81 | int e,
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| 82 | int e1,
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| 83 | int e3,
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| 84 | int len)
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| 85 | {
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| 86 | FbBits *dst;
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| 87 | FbStride dstStride;
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| 88 | int dstBpp;
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| 89 | int dstXoff, dstYoff;
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| 90 | FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
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| 91 | UNIT *bits;
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| 92 | FbStride bitsStride;
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| 93 | FbStride majorStep, minorStep;
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| 94 | BITS xor = (BITS) pPriv->xor;
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| 95 |
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| 96 | fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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| 97 | bits = ((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff) * MUL;
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| 98 | bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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| 99 | if (signdy < 0)
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| 100 | bitsStride = -bitsStride;
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| 101 | if (axis == X_AXIS)
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| 102 | {
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| 103 | majorStep = signdx * MUL;
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| 104 | minorStep = bitsStride;
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| 105 | }
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| 106 | else
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| 107 | {
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| 108 | majorStep = bitsStride;
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| 109 | minorStep = signdx * MUL;
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| 110 | }
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| 111 | while (len--)
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| 112 | {
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| 113 | STORE(bits,xor);
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| 114 | bits += majorStep;
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| 115 | e += e1;
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| 116 | if (e >= 0)
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| 117 | {
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| 118 | bits += minorStep;
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| 119 | e += e3;
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| 120 | }
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| 121 | }
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| 122 | }
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| 123 | #endif
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| 124 |
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| 125 | #ifdef BRESDASH
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| 126 | void
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| 127 | BRESDASH (DrawablePtr pDrawable,
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| 128 | GCPtr pGC,
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| 129 | int dashOffset,
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| 130 | int signdx,
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| 131 | int signdy,
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| 132 | int axis,
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| 133 | int x1,
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| 134 | int y1,
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| 135 | int e,
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| 136 | int e1,
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| 137 | int e3,
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| 138 | int len)
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| 139 | {
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| 140 | FbBits *dst;
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| 141 | FbStride dstStride;
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| 142 | int dstBpp;
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| 143 | int dstXoff, dstYoff;
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| 144 | FbGCPrivPtr pPriv = fbGetGCPrivate (pGC);
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| 145 | UNIT *bits;
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| 146 | FbStride bitsStride;
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| 147 | FbStride majorStep, minorStep;
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| 148 | BITS xorfg, xorbg;
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| 149 | FbDashDeclare;
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| 150 | int dashlen;
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| 151 | Bool even;
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| 152 | Bool doOdd;
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| 153 |
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| 154 | fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
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| 155 | doOdd = pGC->lineStyle == LineDoubleDash;
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| 156 | xorfg = (BITS) pPriv->xor;
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| 157 | xorbg = (BITS) pPriv->bgxor;
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| 158 |
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| 159 | FbDashInit (pGC, pPriv, dashOffset, dashlen, even);
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| 160 |
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| 161 | bits = ((UNIT *) (dst + ((y1 + dstYoff) * dstStride))) + (x1 + dstXoff) * MUL;
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| 162 | bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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| 163 | if (signdy < 0)
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| 164 | bitsStride = -bitsStride;
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| 165 | if (axis == X_AXIS)
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| 166 | {
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| 167 | majorStep = signdx * MUL;
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| 168 | minorStep = bitsStride;
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| 169 | }
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| 170 | else
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| 171 | {
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| 172 | majorStep = bitsStride;
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| 173 | minorStep = signdx * MUL;
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| 174 | }
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| 175 | if (dashlen >= len)
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| 176 | dashlen = len;
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| 177 | if (doOdd)
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| 178 | {
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| 179 | if (!even)
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| 180 | goto doubleOdd;
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| 181 | for (;;)
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| 182 | {
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| 183 | len -= dashlen;
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| 184 | while (dashlen--)
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| 185 | {
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| 186 | STORE(bits,xorfg);
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| 187 | bits += majorStep;
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| 188 | if ((e += e1) >= 0)
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| 189 | {
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| 190 | e += e3;
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| 191 | bits += minorStep;
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| 192 | }
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| 193 | }
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| 194 | if (!len)
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| 195 | break;
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| 196 |
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| 197 | FbDashNextEven(dashlen);
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| 198 |
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| 199 | if (dashlen >= len)
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| 200 | dashlen = len;
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| 201 | doubleOdd:
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| 202 | len -= dashlen;
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| 203 | while (dashlen--)
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| 204 | {
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| 205 | STORE(bits,xorbg);
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| 206 | bits += majorStep;
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| 207 | if ((e += e1) >= 0)
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| 208 | {
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| 209 | e += e3;
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| 210 | bits += minorStep;
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| 211 | }
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| 212 | }
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| 213 | if (!len)
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| 214 | break;
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| 215 |
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| 216 | FbDashNextOdd(dashlen);
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| 217 |
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| 218 | if (dashlen >= len)
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| 219 | dashlen = len;
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| 220 | }
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| 221 | }
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| 222 | else
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| 223 | {
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| 224 | if (!even)
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| 225 | goto onOffOdd;
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| 226 | for (;;)
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| 227 | {
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| 228 | len -= dashlen;
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| 229 | while (dashlen--)
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| 230 | {
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| 231 | STORE(bits,xorfg);
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| 232 | bits += majorStep;
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| 233 | if ((e += e1) >= 0)
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| 234 | {
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| 235 | e += e3;
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| 236 | bits += minorStep;
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| 237 | }
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| 238 | }
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| 239 | if (!len)
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| 240 | break;
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| 241 |
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| 242 | FbDashNextEven (dashlen);
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| 243 |
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| 244 | if (dashlen >= len)
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| 245 | dashlen = len;
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| 246 | onOffOdd:
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| 247 | len -= dashlen;
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| 248 | while (dashlen--)
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| 249 | {
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| 250 | bits += majorStep;
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| 251 | if ((e += e1) >= 0)
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| 252 | {
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| 253 | e += e3;
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| 254 | bits += minorStep;
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| 255 | }
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| 256 | }
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| 257 | if (!len)
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| 258 | break;
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| 259 |
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| 260 | FbDashNextOdd (dashlen);
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| 261 |
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| 262 | if (dashlen >= len)
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| 263 | dashlen = len;
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| 264 | }
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| 265 | }
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| 266 | }
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| 267 | #endif
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| 268 |
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| 269 | #ifdef DOTS
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| 270 | void
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| 271 | DOTS (FbBits *dst,
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| 272 | FbStride dstStride,
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| 273 | int dstBpp,
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| 274 | BoxPtr pBox,
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| 275 | xPoint *ptsOrig,
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| 276 | int npt,
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| 277 | int xorg,
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| 278 | int yorg,
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| 279 | int xoff,
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| 280 | int yoff,
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| 281 | FbBits and,
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| 282 | FbBits xor)
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| 283 | {
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| 284 | INT32 *pts = (INT32 *) ptsOrig;
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| 285 | UNIT *bits = (UNIT *) dst;
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| 286 | UNIT *point;
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| 287 | BITS bxor = (BITS) xor;
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| 288 | BITS band = (BITS) and;
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| 289 | FbStride bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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| 290 | INT32 ul, lr;
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| 291 | INT32 pt;
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| 292 |
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| 293 | ul = coordToInt(pBox->x1 - xorg, pBox->y1 - yorg);
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| 294 | lr = coordToInt(pBox->x2 - xorg - 1, pBox->y2 - yorg - 1);
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| 295 |
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| 296 | bits += bitsStride * (yorg + yoff) + (xorg + xoff) * MUL;
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| 297 |
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| 298 | if (and == 0)
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| 299 | {
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| 300 | while (npt--)
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| 301 | {
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| 302 | pt = *pts++;
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| 303 | if (!isClipped(pt,ul,lr))
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| 304 | {
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| 305 | point = bits + intToY(pt) * bitsStride + intToX(pt) * MUL;
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| 306 | STORE(point,bxor);
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| 307 | }
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| 308 | }
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| 309 | }
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| 310 | else
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| 311 | {
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| 312 | while (npt--)
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| 313 | {
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| 314 | pt = *pts++;
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| 315 | if (!isClipped(pt,ul,lr))
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| 316 | {
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| 317 | point = bits + intToY(pt) * bitsStride + intToX(pt) * MUL;
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| 318 | RROP(point,band,bxor);
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| 319 | }
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| 320 | }
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| 321 | }
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| 322 | }
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| 323 | #endif
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| 324 |
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| 325 | #ifdef ARC
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| 326 |
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| 327 | #define ARCCOPY(d) STORE(d,xorBits)
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| 328 | #define ARCRROP(d) RROP(d,andBits,xorBits)
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| 329 |
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| 330 | void
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| 331 | ARC (FbBits *dst,
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| 332 | FbStride dstStride,
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| 333 | int dstBpp,
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| 334 | xArc *arc,
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| 335 | int drawX,
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| 336 | int drawY,
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| 337 | FbBits and,
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| 338 | FbBits xor)
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| 339 | {
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| 340 | UNIT *bits;
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| 341 | FbStride bitsStride;
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| 342 | miZeroArcRec info;
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| 343 | Bool do360;
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| 344 | int x;
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| 345 | UNIT *yorgp, *yorgop;
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| 346 | BITS andBits, xorBits;
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| 347 | int yoffset, dyoffset;
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| 348 | int y, a, b, d, mask;
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| 349 | int k1, k3, dx, dy;
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| 350 |
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| 351 | bits = (UNIT *) dst;
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| 352 | bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
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| 353 | andBits = (BITS) and;
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| 354 | xorBits = (BITS) xor;
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| 355 | do360 = miZeroArcSetup(arc, &info, TRUE);
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| 356 | yorgp = bits + ((info.yorg + drawY) * bitsStride);
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| 357 | yorgop = bits + ((info.yorgo + drawY) * bitsStride);
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| 358 | info.xorg = (info.xorg + drawX) * MUL;
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| 359 | info.xorgo = (info.xorgo + drawX) * MUL;
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| 360 | MIARCSETUP();
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| 361 | yoffset = y ? bitsStride : 0;
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| 362 | dyoffset = 0;
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| 363 | mask = info.initialMask;
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| 364 |
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| 365 | if (!(arc->width & 1))
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| 366 | {
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| 367 | if (andBits == 0)
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| 368 | {
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| 369 | if (mask & 2)
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| 370 | ARCCOPY(yorgp + info.xorgo);
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| 371 | if (mask & 8)
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| 372 | ARCCOPY(yorgop + info.xorgo);
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| 373 | }
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| 374 | else
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| 375 | {
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| 376 | if (mask & 2)
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| 377 | ARCRROP(yorgp + info.xorgo);
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| 378 | if (mask & 8)
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| 379 | ARCRROP(yorgop + info.xorgo);
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| 380 | }
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| 381 | }
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| 382 | if (!info.end.x || !info.end.y)
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| 383 | {
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| 384 | mask = info.end.mask;
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| 385 | info.end = info.altend;
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| 386 | }
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| 387 | if (do360 && (arc->width == arc->height) && !(arc->width & 1))
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| 388 | {
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| 389 | int xoffset = bitsStride;
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| 390 | UNIT *yorghb = yorgp + (info.h * bitsStride) + info.xorg;
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| 391 | UNIT *yorgohb = yorghb - info.h * MUL;
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| 392 |
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| 393 | yorgp += info.xorg;
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| 394 | yorgop += info.xorg;
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| 395 | yorghb += info.h * MUL;
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| 396 | while (1)
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| 397 | {
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| 398 | if (andBits == 0)
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| 399 | {
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| 400 | ARCCOPY(yorgp + yoffset + x * MUL);
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| 401 | ARCCOPY(yorgp + yoffset - x * MUL);
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| 402 | ARCCOPY(yorgop - yoffset - x * MUL);
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| 403 | ARCCOPY(yorgop - yoffset + x * MUL);
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| 404 | }
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| 405 | else
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| 406 | {
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| 407 | ARCRROP(yorgp + yoffset + x * MUL);
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| 408 | ARCRROP(yorgp + yoffset - x * MUL);
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| 409 | ARCRROP(yorgop - yoffset - x * MUL);
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| 410 | ARCRROP(yorgop - yoffset + x * MUL);
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| 411 | }
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| 412 | if (a < 0)
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| 413 | break;
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| 414 | if (andBits == 0)
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| 415 | {
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| 416 | ARCCOPY(yorghb - xoffset - y * MUL);
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| 417 | ARCCOPY(yorgohb - xoffset + y * MUL);
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| 418 | ARCCOPY(yorgohb + xoffset + y * MUL);
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| 419 | ARCCOPY(yorghb + xoffset - y * MUL);
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| 420 | }
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| 421 | else
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| 422 | {
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| 423 | ARCRROP(yorghb - xoffset - y * MUL);
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| 424 | ARCRROP(yorgohb - xoffset + y * MUL);
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| 425 | ARCRROP(yorgohb + xoffset + y * MUL);
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| 426 | ARCRROP(yorghb + xoffset - y * MUL);
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| 427 | }
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| 428 | xoffset += bitsStride;
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| 429 | MIARCCIRCLESTEP(yoffset += bitsStride;);
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| 430 | }
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| 431 | yorgp -= info.xorg;
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| 432 | yorgop -= info.xorg;
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| 433 | x = info.w;
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| 434 | yoffset = info.h * bitsStride;
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| 435 | }
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| 436 | else if (do360)
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| 437 | {
|
|---|
| 438 | while (y < info.h || x < info.w)
|
|---|
| 439 | {
|
|---|
| 440 | MIARCOCTANTSHIFT(dyoffset = bitsStride;);
|
|---|
| 441 | if (andBits == 0)
|
|---|
| 442 | {
|
|---|
| 443 | ARCCOPY(yorgp + yoffset + info.xorg + x * MUL);
|
|---|
| 444 | ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL);
|
|---|
| 445 | ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL);
|
|---|
| 446 | ARCCOPY(yorgop - yoffset + info.xorg + x * MUL);
|
|---|
| 447 | }
|
|---|
| 448 | else
|
|---|
| 449 | {
|
|---|
| 450 | ARCRROP(yorgp + yoffset + info.xorg + x * MUL);
|
|---|
| 451 | ARCRROP(yorgp + yoffset + info.xorgo - x * MUL);
|
|---|
| 452 | ARCRROP(yorgop - yoffset + info.xorgo - x * MUL);
|
|---|
| 453 | ARCRROP(yorgop - yoffset + info.xorg + x * MUL);
|
|---|
| 454 | }
|
|---|
| 455 | MIARCSTEP(yoffset += dyoffset;, yoffset += bitsStride;);
|
|---|
| 456 | }
|
|---|
| 457 | }
|
|---|
| 458 | else
|
|---|
| 459 | {
|
|---|
| 460 | while (y < info.h || x < info.w)
|
|---|
| 461 | {
|
|---|
| 462 | MIARCOCTANTSHIFT(dyoffset = bitsStride;);
|
|---|
| 463 | if ((x == info.start.x) || (y == info.start.y))
|
|---|
| 464 | {
|
|---|
| 465 | mask = info.start.mask;
|
|---|
| 466 | info.start = info.altstart;
|
|---|
| 467 | }
|
|---|
| 468 | if (andBits == 0)
|
|---|
| 469 | {
|
|---|
| 470 | if (mask & 1)
|
|---|
| 471 | ARCCOPY(yorgp + yoffset + info.xorg + x * MUL);
|
|---|
| 472 | if (mask & 2)
|
|---|
| 473 | ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL);
|
|---|
| 474 | if (mask & 4)
|
|---|
| 475 | ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL);
|
|---|
| 476 | if (mask & 8)
|
|---|
| 477 | ARCCOPY(yorgop - yoffset + info.xorg + x * MUL);
|
|---|
| 478 | }
|
|---|
| 479 | else
|
|---|
| 480 | {
|
|---|
| 481 | if (mask & 1)
|
|---|
| 482 | ARCRROP(yorgp + yoffset + info.xorg + x * MUL);
|
|---|
| 483 | if (mask & 2)
|
|---|
| 484 | ARCRROP(yorgp + yoffset + info.xorgo - x * MUL);
|
|---|
| 485 | if (mask & 4)
|
|---|
| 486 | ARCRROP(yorgop - yoffset + info.xorgo - x * MUL);
|
|---|
| 487 | if (mask & 8)
|
|---|
| 488 | ARCRROP(yorgop - yoffset + info.xorg + x * MUL);
|
|---|
| 489 | }
|
|---|
| 490 | if ((x == info.end.x) || (y == info.end.y))
|
|---|
| 491 | {
|
|---|
| 492 | mask = info.end.mask;
|
|---|
| 493 | info.end = info.altend;
|
|---|
| 494 | }
|
|---|
| 495 | MIARCSTEP(yoffset += dyoffset;, yoffset += bitsStride;);
|
|---|
| 496 | }
|
|---|
| 497 | }
|
|---|
| 498 | if ((x == info.start.x) || (y == info.start.y))
|
|---|
| 499 | mask = info.start.mask;
|
|---|
| 500 | if (andBits == 0)
|
|---|
| 501 | {
|
|---|
| 502 | if (mask & 1)
|
|---|
| 503 | ARCCOPY(yorgp + yoffset + info.xorg + x * MUL);
|
|---|
| 504 | if (mask & 4)
|
|---|
| 505 | ARCCOPY(yorgop - yoffset + info.xorgo - x * MUL);
|
|---|
| 506 | if (arc->height & 1)
|
|---|
| 507 | {
|
|---|
| 508 | if (mask & 2)
|
|---|
| 509 | ARCCOPY(yorgp + yoffset + info.xorgo - x * MUL);
|
|---|
| 510 | if (mask & 8)
|
|---|
| 511 | ARCCOPY(yorgop - yoffset + info.xorg + x * MUL);
|
|---|
| 512 | }
|
|---|
| 513 | }
|
|---|
| 514 | else
|
|---|
| 515 | {
|
|---|
| 516 | if (mask & 1)
|
|---|
| 517 | ARCRROP(yorgp + yoffset + info.xorg + x * MUL);
|
|---|
| 518 | if (mask & 4)
|
|---|
| 519 | ARCRROP(yorgop - yoffset + info.xorgo - x * MUL);
|
|---|
| 520 | if (arc->height & 1)
|
|---|
| 521 | {
|
|---|
| 522 | if (mask & 2)
|
|---|
| 523 | ARCRROP(yorgp + yoffset + info.xorgo - x * MUL);
|
|---|
| 524 | if (mask & 8)
|
|---|
| 525 | ARCRROP(yorgop - yoffset + info.xorg + x * MUL);
|
|---|
| 526 | }
|
|---|
| 527 | }
|
|---|
| 528 | }
|
|---|
| 529 | #undef ARCCOPY
|
|---|
| 530 | #undef ARCRROP
|
|---|
| 531 | #endif
|
|---|
| 532 |
|
|---|
| 533 | #ifdef GLYPH
|
|---|
| 534 | #if BITMAP_BIT_ORDER == LSBFirst
|
|---|
| 535 | # define WRITE_ADDR1(n) (n)
|
|---|
| 536 | # define WRITE_ADDR2(n) (n)
|
|---|
| 537 | # define WRITE_ADDR4(n) (n)
|
|---|
| 538 | #else
|
|---|
| 539 | # define WRITE_ADDR1(n) ((n) ^ 3)
|
|---|
| 540 | # define WRITE_ADDR2(n) ((n) ^ 2)
|
|---|
| 541 | # define WRITE_ADDR4(n) ((n))
|
|---|
| 542 | #endif
|
|---|
| 543 |
|
|---|
| 544 | #define WRITE1(d,n,fg) ((d)[WRITE_ADDR1(n)] = (BITS) (fg))
|
|---|
| 545 |
|
|---|
| 546 | #ifdef BITS2
|
|---|
| 547 | # define WRITE2(d,n,fg) (*((BITS2 *) &((d)[WRITE_ADDR2(n)])) = (BITS2) (fg))
|
|---|
| 548 | #else
|
|---|
| 549 | # define WRITE2(d,n,fg) WRITE1(d,(n)+1,WRITE1(d,n,fg))
|
|---|
| 550 | #endif
|
|---|
| 551 |
|
|---|
| 552 | #ifdef BITS4
|
|---|
| 553 | # define WRITE4(d,n,fg) (*((BITS4 *) &((d)[WRITE_ADDR4(n)])) = (BITS4) (fg))
|
|---|
| 554 | #else
|
|---|
| 555 | # define WRITE4(d,n,fg) WRITE2(d,(n)+2,WRITE2(d,n,fg))
|
|---|
| 556 | #endif
|
|---|
| 557 |
|
|---|
| 558 | void
|
|---|
| 559 | GLYPH (FbBits *dstBits,
|
|---|
| 560 | FbStride dstStride,
|
|---|
| 561 | int dstBpp,
|
|---|
| 562 | FbStip *stipple,
|
|---|
| 563 | FbBits fg,
|
|---|
| 564 | int x,
|
|---|
| 565 | int height)
|
|---|
| 566 | {
|
|---|
| 567 | int lshift;
|
|---|
| 568 | FbStip bits;
|
|---|
| 569 | BITS *dstLine;
|
|---|
| 570 | BITS *dst;
|
|---|
| 571 | int n;
|
|---|
| 572 | int shift;
|
|---|
| 573 |
|
|---|
| 574 | dstLine = (BITS *) dstBits;
|
|---|
| 575 | dstLine += x & ~3;
|
|---|
| 576 | dstStride *= (sizeof (FbBits) / sizeof (BITS));
|
|---|
| 577 | shift = x & 3;
|
|---|
| 578 | lshift = 4 - shift;
|
|---|
| 579 | while (height--)
|
|---|
| 580 | {
|
|---|
| 581 | bits = *stipple++;
|
|---|
| 582 | dst = (BITS *) dstLine;
|
|---|
| 583 | n = lshift;
|
|---|
| 584 | while (bits)
|
|---|
| 585 | {
|
|---|
| 586 | switch (FbStipMoveLsb (FbLeftStipBits (bits, n), 4, n)) {
|
|---|
| 587 | case 0:
|
|---|
| 588 | break;
|
|---|
| 589 | case 1:
|
|---|
| 590 | WRITE1(dst,0,fg);
|
|---|
| 591 | break;
|
|---|
| 592 | case 2:
|
|---|
| 593 | WRITE1(dst,1,fg);
|
|---|
| 594 | break;
|
|---|
| 595 | case 3:
|
|---|
| 596 | WRITE2(dst,0,fg);
|
|---|
| 597 | break;
|
|---|
| 598 | case 4:
|
|---|
| 599 | WRITE1(dst,2,fg);
|
|---|
| 600 | break;
|
|---|
| 601 | case 5:
|
|---|
| 602 | WRITE1(dst,0,fg);
|
|---|
| 603 | WRITE1(dst,2,fg);
|
|---|
| 604 | break;
|
|---|
| 605 | case 6:
|
|---|
| 606 | WRITE1(dst,1,fg);
|
|---|
| 607 | WRITE1(dst,2,fg);
|
|---|
| 608 | break;
|
|---|
| 609 | case 7:
|
|---|
| 610 | WRITE2(dst,0,fg);
|
|---|
| 611 | WRITE1(dst,2,fg);
|
|---|
| 612 | break;
|
|---|
| 613 | case 8:
|
|---|
| 614 | WRITE1(dst,3,fg);
|
|---|
| 615 | break;
|
|---|
| 616 | case 9:
|
|---|
| 617 | WRITE1(dst,0,fg);
|
|---|
| 618 | WRITE1(dst,3,fg);
|
|---|
| 619 | break;
|
|---|
| 620 | case 10:
|
|---|
| 621 | WRITE1(dst,1,fg);
|
|---|
| 622 | WRITE1(dst,3,fg);
|
|---|
| 623 | break;
|
|---|
| 624 | case 11:
|
|---|
| 625 | WRITE2(dst,0,fg);
|
|---|
| 626 | WRITE1(dst,3,fg);
|
|---|
| 627 | break;
|
|---|
| 628 | case 12:
|
|---|
| 629 | WRITE2(dst,2,fg);
|
|---|
| 630 | break;
|
|---|
| 631 | case 13:
|
|---|
| 632 | WRITE1(dst,0,fg);
|
|---|
| 633 | WRITE2(dst,2,fg);
|
|---|
| 634 | break;
|
|---|
| 635 | case 14:
|
|---|
| 636 | WRITE1(dst,1,fg);
|
|---|
| 637 | WRITE2(dst,2,fg);
|
|---|
| 638 | break;
|
|---|
| 639 | case 15:
|
|---|
| 640 | WRITE4(dst,0,fg);
|
|---|
| 641 | break;
|
|---|
| 642 | }
|
|---|
| 643 | bits = FbStipLeft (bits, n);
|
|---|
| 644 | n = 4;
|
|---|
| 645 | dst += 4;
|
|---|
| 646 | }
|
|---|
| 647 | dstLine += dstStride;
|
|---|
| 648 | }
|
|---|
| 649 | }
|
|---|
| 650 | #undef WRITE_ADDR1
|
|---|
| 651 | #undef WRITE_ADDR2
|
|---|
| 652 | #undef WRITE_ADDR4
|
|---|
| 653 | #undef WRITE1
|
|---|
| 654 | #undef WRITE2
|
|---|
| 655 | #undef WRITE4
|
|---|
| 656 |
|
|---|
| 657 | #endif
|
|---|
| 658 |
|
|---|
| 659 | #ifdef POLYLINE
|
|---|
| 660 | void
|
|---|
| 661 | POLYLINE (DrawablePtr pDrawable,
|
|---|
| 662 | GCPtr pGC,
|
|---|
| 663 | int mode,
|
|---|
| 664 | int npt,
|
|---|
| 665 | DDXPointPtr ptsOrig)
|
|---|
| 666 | {
|
|---|
| 667 | INT32 *pts = (INT32 *) ptsOrig;
|
|---|
| 668 | int xoff = pDrawable->x;
|
|---|
| 669 | int yoff = pDrawable->y;
|
|---|
| 670 | unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
|
|---|
| 671 | BoxPtr pBox = REGION_EXTENTS (pDrawable->pScreen, fbGetCompositeClip (pGC));
|
|---|
| 672 |
|
|---|
| 673 | FbBits *dst;
|
|---|
| 674 | int dstStride;
|
|---|
| 675 | int dstBpp;
|
|---|
| 676 | int dstXoff, dstYoff;
|
|---|
| 677 |
|
|---|
| 678 | UNIT *bits, *bitsBase;
|
|---|
| 679 | FbStride bitsStride;
|
|---|
| 680 | BITS xor = fbGetGCPrivate(pGC)->xor;
|
|---|
| 681 | BITS and = fbGetGCPrivate(pGC)->and;
|
|---|
| 682 | int dashoffset = 0;
|
|---|
| 683 |
|
|---|
| 684 | INT32 ul, lr;
|
|---|
| 685 | INT32 pt1, pt2;
|
|---|
| 686 |
|
|---|
| 687 | int e, e1, e3, len;
|
|---|
| 688 | int stepmajor, stepminor;
|
|---|
| 689 | int octant;
|
|---|
| 690 |
|
|---|
| 691 | if (mode == CoordModePrevious)
|
|---|
| 692 | fbFixCoordModePrevious (npt, ptsOrig);
|
|---|
| 693 |
|
|---|
| 694 | fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
|
|---|
| 695 | bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
|
|---|
| 696 | bitsBase = ((UNIT *) dst) + (yoff + dstYoff) * bitsStride + (xoff + dstXoff) * MUL;
|
|---|
| 697 | ul = coordToInt(pBox->x1 - xoff, pBox->y1 - yoff);
|
|---|
| 698 | lr = coordToInt(pBox->x2 - xoff - 1, pBox->y2 - yoff - 1);
|
|---|
| 699 |
|
|---|
| 700 | pt1 = *pts++;
|
|---|
| 701 | npt--;
|
|---|
| 702 | pt2 = *pts++;
|
|---|
| 703 | npt--;
|
|---|
| 704 | for (;;)
|
|---|
| 705 | {
|
|---|
| 706 | if (isClipped (pt1, ul, lr) | isClipped (pt2, ul, lr))
|
|---|
| 707 | {
|
|---|
| 708 | fbSegment (pDrawable, pGC,
|
|---|
| 709 | intToX(pt1) + xoff, intToY(pt1) + yoff,
|
|---|
| 710 | intToX(pt2) + xoff, intToY(pt2) + yoff,
|
|---|
| 711 | npt == 0 && pGC->capStyle != CapNotLast,
|
|---|
| 712 | &dashoffset);
|
|---|
| 713 | if (!npt)
|
|---|
| 714 | return;
|
|---|
| 715 | pt1 = pt2;
|
|---|
| 716 | pt2 = *pts++;
|
|---|
| 717 | npt--;
|
|---|
| 718 | }
|
|---|
| 719 | else
|
|---|
| 720 | {
|
|---|
| 721 | bits = bitsBase + intToY(pt1) * bitsStride + intToX(pt1) * MUL;
|
|---|
| 722 | for (;;)
|
|---|
| 723 | {
|
|---|
| 724 | CalcLineDeltas (intToX(pt1), intToY(pt1),
|
|---|
| 725 | intToX(pt2), intToY(pt2),
|
|---|
| 726 | len, e1, stepmajor, stepminor, 1, bitsStride,
|
|---|
| 727 | octant);
|
|---|
| 728 | stepmajor *= MUL;
|
|---|
| 729 | if (len < e1)
|
|---|
| 730 | {
|
|---|
| 731 | e3 = len;
|
|---|
| 732 | len = e1;
|
|---|
| 733 | e1 = e3;
|
|---|
| 734 |
|
|---|
| 735 | e3 = stepminor;
|
|---|
| 736 | stepminor = stepmajor;
|
|---|
| 737 | stepmajor = e3;
|
|---|
| 738 | SetYMajorOctant(octant);
|
|---|
| 739 | }
|
|---|
| 740 | e = -len;
|
|---|
| 741 | e1 <<= 1;
|
|---|
| 742 | e3 = e << 1;
|
|---|
| 743 | FIXUP_ERROR (e, octant, bias);
|
|---|
| 744 | if (and == 0)
|
|---|
| 745 | {
|
|---|
| 746 | while (len--)
|
|---|
| 747 | {
|
|---|
| 748 | STORE(bits,xor);
|
|---|
| 749 | bits += stepmajor;
|
|---|
| 750 | e += e1;
|
|---|
| 751 | if (e >= 0)
|
|---|
| 752 | {
|
|---|
| 753 | bits += stepminor;
|
|---|
| 754 | e += e3;
|
|---|
| 755 | }
|
|---|
| 756 | }
|
|---|
| 757 | }
|
|---|
| 758 | else
|
|---|
| 759 | {
|
|---|
| 760 | while (len--)
|
|---|
| 761 | {
|
|---|
| 762 | RROP(bits,and,xor);
|
|---|
| 763 | bits += stepmajor;
|
|---|
| 764 | e += e1;
|
|---|
| 765 | if (e >= 0)
|
|---|
| 766 | {
|
|---|
| 767 | bits += stepminor;
|
|---|
| 768 | e += e3;
|
|---|
| 769 | }
|
|---|
| 770 | }
|
|---|
| 771 | }
|
|---|
| 772 | if (!npt)
|
|---|
| 773 | {
|
|---|
| 774 | if (pGC->capStyle != CapNotLast &&
|
|---|
| 775 | pt2 != *((INT32 *) ptsOrig))
|
|---|
| 776 | {
|
|---|
| 777 | RROP(bits,and,xor);
|
|---|
| 778 | }
|
|---|
| 779 | return;
|
|---|
| 780 | }
|
|---|
| 781 | pt1 = pt2;
|
|---|
| 782 | pt2 = *pts++;
|
|---|
| 783 | --npt;
|
|---|
| 784 | if (isClipped (pt2, ul, lr))
|
|---|
| 785 | break;
|
|---|
| 786 | }
|
|---|
| 787 | }
|
|---|
| 788 | }
|
|---|
| 789 | }
|
|---|
| 790 | #endif
|
|---|
| 791 |
|
|---|
| 792 | #ifdef POLYSEGMENT
|
|---|
| 793 | void
|
|---|
| 794 | POLYSEGMENT (DrawablePtr pDrawable,
|
|---|
| 795 | GCPtr pGC,
|
|---|
| 796 | int nseg,
|
|---|
| 797 | xSegment *pseg)
|
|---|
| 798 | {
|
|---|
| 799 | INT32 *pts = (INT32 *) pseg;
|
|---|
| 800 | int xoff = pDrawable->x;
|
|---|
| 801 | int yoff = pDrawable->y;
|
|---|
| 802 | unsigned int bias = miGetZeroLineBias(pDrawable->pScreen);
|
|---|
| 803 | BoxPtr pBox = REGION_EXTENTS (pDrawable->pScreen, fbGetCompositeClip (pGC));
|
|---|
| 804 |
|
|---|
| 805 | FbBits *dst;
|
|---|
| 806 | int dstStride;
|
|---|
| 807 | int dstBpp;
|
|---|
| 808 | int dstXoff, dstYoff;
|
|---|
| 809 |
|
|---|
| 810 | UNIT *bits, *bitsBase;
|
|---|
| 811 | FbStride bitsStride;
|
|---|
| 812 | FbBits xorBits = fbGetGCPrivate(pGC)->xor;
|
|---|
| 813 | FbBits andBits = fbGetGCPrivate(pGC)->and;
|
|---|
| 814 | BITS xor = xorBits;
|
|---|
| 815 | BITS and = andBits;
|
|---|
| 816 | int dashoffset = 0;
|
|---|
| 817 |
|
|---|
| 818 | INT32 ul, lr;
|
|---|
| 819 | INT32 pt1, pt2;
|
|---|
| 820 |
|
|---|
| 821 | int e, e1, e3, len;
|
|---|
| 822 | int stepmajor, stepminor;
|
|---|
| 823 | int octant;
|
|---|
| 824 | Bool capNotLast;
|
|---|
| 825 |
|
|---|
| 826 | fbGetDrawable (pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff);
|
|---|
| 827 | bitsStride = dstStride * (sizeof (FbBits) / sizeof (UNIT));
|
|---|
| 828 | bitsBase = ((UNIT *) dst) + (yoff + dstYoff) * bitsStride + (xoff + dstXoff) * MUL;
|
|---|
| 829 | ul = coordToInt(pBox->x1 - xoff, pBox->y1 - yoff);
|
|---|
| 830 | lr = coordToInt(pBox->x2 - xoff - 1, pBox->y2 - yoff - 1);
|
|---|
| 831 |
|
|---|
| 832 | bits += bitsStride * yoff + xoff * MUL;
|
|---|
| 833 |
|
|---|
| 834 | capNotLast = pGC->capStyle == CapNotLast;
|
|---|
| 835 |
|
|---|
| 836 | while (nseg--)
|
|---|
| 837 | {
|
|---|
| 838 | pt1 = *pts++;
|
|---|
| 839 | pt2 = *pts++;
|
|---|
| 840 | if (isClipped (pt1, ul, lr) | isClipped (pt2, ul, lr))
|
|---|
| 841 | {
|
|---|
| 842 | fbSegment (pDrawable, pGC,
|
|---|
| 843 | intToX(pt1) + xoff, intToY(pt1) + yoff,
|
|---|
| 844 | intToX(pt2) + xoff, intToY(pt2) + yoff,
|
|---|
| 845 | !capNotLast, &dashoffset);
|
|---|
| 846 | }
|
|---|
| 847 | else
|
|---|
| 848 | {
|
|---|
| 849 | CalcLineDeltas (intToX(pt1), intToY(pt1),
|
|---|
| 850 | intToX(pt2), intToY(pt2),
|
|---|
| 851 | len, e1, stepmajor, stepminor, 1, bitsStride,
|
|---|
| 852 | octant);
|
|---|
| 853 | if (e1 == 0 && len > 3
|
|---|
| 854 | #if MUL != 1
|
|---|
| 855 | && FbCheck24Pix(and) && FbCheck24Pix(xor)
|
|---|
| 856 | #endif
|
|---|
| 857 | )
|
|---|
| 858 | {
|
|---|
| 859 | int x1, x2;
|
|---|
| 860 | FbBits *dstLine;
|
|---|
| 861 | int dstX, width;
|
|---|
| 862 | FbBits startmask, endmask;
|
|---|
| 863 | int nmiddle;
|
|---|
| 864 |
|
|---|
| 865 | if (stepmajor < 0)
|
|---|
| 866 | {
|
|---|
| 867 | x1 = intToX(pt2);
|
|---|
| 868 | x2 = intToX(pt1) + 1;
|
|---|
| 869 | if (capNotLast)
|
|---|
| 870 | x1++;
|
|---|
| 871 | }
|
|---|
| 872 | else
|
|---|
| 873 | {
|
|---|
| 874 | x1 = intToX(pt1);
|
|---|
| 875 | x2 = intToX(pt2);
|
|---|
| 876 | if (!capNotLast)
|
|---|
| 877 | x2++;
|
|---|
| 878 | }
|
|---|
| 879 | dstX = (x1 + xoff + dstXoff) * (sizeof (UNIT) * 8 * MUL);
|
|---|
| 880 | width = (x2 - x1) * (sizeof (UNIT) * 8 * MUL);
|
|---|
| 881 |
|
|---|
| 882 | dstLine = dst + (intToY(pt1) + yoff + dstYoff) * dstStride;
|
|---|
| 883 | dstLine += dstX >> FB_SHIFT;
|
|---|
| 884 | dstX &= FB_MASK;
|
|---|
| 885 | FbMaskBits (dstX, width, startmask, nmiddle, endmask);
|
|---|
| 886 | if (startmask)
|
|---|
| 887 | {
|
|---|
| 888 | *dstLine = FbDoMaskRRop (*dstLine, andBits, xorBits, startmask);
|
|---|
| 889 | dstLine++;
|
|---|
| 890 | }
|
|---|
| 891 | if (!andBits)
|
|---|
| 892 | while (nmiddle--)
|
|---|
| 893 | *dstLine++ = xorBits;
|
|---|
| 894 | else
|
|---|
| 895 | while (nmiddle--)
|
|---|
| 896 | {
|
|---|
| 897 | *dstLine = FbDoRRop (*dstLine, andBits, xorBits);
|
|---|
| 898 | dstLine++;
|
|---|
| 899 | }
|
|---|
| 900 | if (endmask)
|
|---|
| 901 | *dstLine = FbDoMaskRRop (*dstLine, andBits, xorBits, endmask);
|
|---|
| 902 | }
|
|---|
| 903 | else
|
|---|
| 904 | {
|
|---|
| 905 | stepmajor *= MUL;
|
|---|
| 906 | bits = bitsBase + intToY(pt1) * bitsStride + intToX(pt1) * MUL;
|
|---|
| 907 | if (len < e1)
|
|---|
| 908 | {
|
|---|
| 909 | e3 = len;
|
|---|
| 910 | len = e1;
|
|---|
| 911 | e1 = e3;
|
|---|
| 912 |
|
|---|
| 913 | e3 = stepminor;
|
|---|
| 914 | stepminor = stepmajor;
|
|---|
| 915 | stepmajor = e3;
|
|---|
| 916 | SetYMajorOctant(octant);
|
|---|
| 917 | }
|
|---|
| 918 | e = -len;
|
|---|
| 919 | e1 <<= 1;
|
|---|
| 920 | e3 = e << 1;
|
|---|
| 921 | FIXUP_ERROR (e, octant, bias);
|
|---|
| 922 | if (!capNotLast)
|
|---|
| 923 | len++;
|
|---|
| 924 | if (and == 0)
|
|---|
| 925 | {
|
|---|
| 926 | while (len--)
|
|---|
| 927 | {
|
|---|
| 928 | STORE(bits,xor);
|
|---|
| 929 | bits += stepmajor;
|
|---|
| 930 | e += e1;
|
|---|
| 931 | if (e >= 0)
|
|---|
| 932 | {
|
|---|
| 933 | bits += stepminor;
|
|---|
| 934 | e += e3;
|
|---|
| 935 | }
|
|---|
| 936 | }
|
|---|
| 937 | }
|
|---|
| 938 | else
|
|---|
| 939 | {
|
|---|
| 940 | while (len--)
|
|---|
| 941 | {
|
|---|
| 942 | RROP(bits,and,xor);
|
|---|
| 943 | bits += stepmajor;
|
|---|
| 944 | e += e1;
|
|---|
| 945 | if (e >= 0)
|
|---|
| 946 | {
|
|---|
| 947 | bits += stepminor;
|
|---|
| 948 | e += e3;
|
|---|
| 949 | }
|
|---|
| 950 | }
|
|---|
| 951 | }
|
|---|
| 952 | }
|
|---|
| 953 | }
|
|---|
| 954 | }
|
|---|
| 955 | }
|
|---|
| 956 | #endif
|
|---|
| 957 |
|
|---|
| 958 | #undef MUL
|
|---|
| 959 | #undef STORE
|
|---|
| 960 | #undef RROP
|
|---|
| 961 | #undef UNIT
|
|---|
| 962 | #undef USE_SOLID
|
|---|
| 963 |
|
|---|
| 964 | #undef isClipped
|
|---|
