| 1 | /* |
| 2 | * Copyright © 1998 Keith Packard |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that |
| 7 | * copyright notice and this permission notice appear in supporting |
| 8 | * documentation, and that the name of Keith Packard not be used in |
| 9 | * advertising or publicity pertaining to distribution of the software without |
| 10 | * specific, written prior permission. Keith Packard makes no |
| 11 | * representations about the suitability of this software for any purpose. It |
| 12 | * is provided "as is" without express or implied warranty. |
| 13 | * |
| 14 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 20 | * PERFORMANCE OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #ifdef HAVE_DIX_CONFIG_H |
| 24 | #include <dix-config.h> |
| 25 | #endif |
| 26 | |
| 27 | #include "fb.h" |
| 28 | |
| 29 | void |
| 30 | fbPushPattern(DrawablePtr pDrawable, |
| 31 | GCPtr pGC, |
| 32 | FbStip * src, |
| 33 | FbStride srcStride, int srcX, int x, int y, int width, int height) |
| 34 | { |
| 35 | FbStip *s, bitsMask, bitsMask0, bits; |
| 36 | int xspan; |
| 37 | int w; |
| 38 | int lenspan; |
| 39 | |
| 40 | src += srcX >> FB_STIP_SHIFT; |
| 41 | srcX &= FB_STIP_MASK; |
| 42 | |
| 43 | bitsMask0 = FbStipMask(srcX, 1); |
| 44 | |
| 45 | while (height--) { |
| 46 | bitsMask = bitsMask0; |
| 47 | w = width; |
| 48 | s = src; |
| 49 | src += srcStride; |
| 50 | bits = READ(s++); |
| 51 | xspan = x; |
| 52 | while (w) { |
| 53 | if (bits & bitsMask) { |
| 54 | lenspan = 0; |
| 55 | do { |
| 56 | lenspan++; |
| 57 | if (lenspan == w) |
| 58 | break; |
| 59 | bitsMask = FbStipRight(bitsMask, 1); |
| 60 | if (!bitsMask) { |
| 61 | bits = READ(s++); |
| 62 | bitsMask = FbBitsMask(0, 1); |
| 63 | } |
| 64 | } while (bits & bitsMask); |
| 65 | fbFill(pDrawable, pGC, xspan, y, lenspan, 1); |
| 66 | xspan += lenspan; |
| 67 | w -= lenspan; |
| 68 | } |
| 69 | else { |
| 70 | do { |
| 71 | w--; |
| 72 | xspan++; |
| 73 | if (!w) |
| 74 | break; |
| 75 | bitsMask = FbStipRight(bitsMask, 1); |
| 76 | if (!bitsMask) { |
| 77 | bits = READ(s++); |
| 78 | bitsMask = FbBitsMask(0, 1); |
| 79 | } |
| 80 | } while (!(bits & bitsMask)); |
| 81 | } |
| 82 | } |
| 83 | y++; |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | void |
| 88 | fbPushFill(DrawablePtr pDrawable, |
| 89 | GCPtr pGC, |
| 90 | FbStip * src, |
| 91 | FbStride srcStride, int srcX, int x, int y, int width, int height) |
| 92 | { |
| 93 | FbGCPrivPtr pPriv = fbGetGCPrivate(pGC); |
| 94 | |
| 95 | if (pGC->fillStyle == FillSolid) { |
| 96 | FbBits *dst; |
| 97 | FbStride dstStride; |
| 98 | int dstBpp; |
| 99 | int dstXoff, dstYoff; |
| 100 | int dstX; |
| 101 | int dstWidth; |
| 102 | |
| 103 | fbGetDrawable(pDrawable, dst, dstStride, dstBpp, dstXoff, dstYoff); |
| 104 | dst = dst + (y + dstYoff) * dstStride; |
| 105 | dstX = (x + dstXoff) * dstBpp; |
| 106 | dstWidth = width * dstBpp; |
| 107 | if (dstBpp == 1) { |
| 108 | fbBltStip(src, |
| 109 | srcStride, |
| 110 | srcX, |
| 111 | (FbStip *) dst, |
| 112 | FbBitsStrideToStipStride(dstStride), |
| 113 | dstX, |
| 114 | dstWidth, |
| 115 | height, |
| 116 | FbStipple1Rop(pGC->alu, pGC->fgPixel), pPriv->pm, dstBpp); |
| 117 | } |
| 118 | else { |
| 119 | fbBltOne(src, |
| 120 | srcStride, |
| 121 | srcX, |
| 122 | dst, |
| 123 | dstStride, |
| 124 | dstX, |
| 125 | dstBpp, |
| 126 | dstWidth, |
| 127 | height, |
| 128 | pPriv->and, pPriv->xor, |
| 129 | fbAnd(GXnoop, (FbBits) 0, FB_ALLONES), |
| 130 | fbXor(GXnoop, (FbBits) 0, FB_ALLONES)); |
| 131 | } |
| 132 | fbFinishAccess(pDrawable); |
| 133 | } |
| 134 | else { |
| 135 | fbPushPattern(pDrawable, pGC, src, srcStride, srcX, |
| 136 | x, y, width, height); |
| 137 | } |
| 138 | } |
| 139 | |
| 140 | void |
| 141 | fbPushImage(DrawablePtr pDrawable, |
| 142 | GCPtr pGC, |
| 143 | FbStip * src, |
| 144 | FbStride srcStride, int srcX, int x, int y, int width, int height) |
| 145 | { |
| 146 | RegionPtr pClip = fbGetCompositeClip(pGC); |
| 147 | int nbox; |
| 148 | BoxPtr pbox; |
| 149 | int x1, y1, x2, y2; |
| 150 | |
| 151 | for (nbox = RegionNumRects(pClip), |
| 152 | pbox = RegionRects(pClip); nbox--; pbox++) { |
| 153 | x1 = x; |
| 154 | y1 = y; |
| 155 | x2 = x + width; |
| 156 | y2 = y + height; |
| 157 | if (x1 < pbox->x1) |
| 158 | x1 = pbox->x1; |
| 159 | if (y1 < pbox->y1) |
| 160 | y1 = pbox->y1; |
| 161 | if (x2 > pbox->x2) |
| 162 | x2 = pbox->x2; |
| 163 | if (y2 > pbox->y2) |
| 164 | y2 = pbox->y2; |
| 165 | if (x1 >= x2 || y1 >= y2) |
| 166 | continue; |
| 167 | fbPushFill(pDrawable, |
| 168 | pGC, |
| 169 | src + (y1 - y) * srcStride, |
| 170 | srcStride, srcX + (x1 - x), x1, y1, x2 - x1, y2 - y1); |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | void |
| 175 | fbPushPixels(GCPtr pGC, |
| 176 | PixmapPtr pBitmap, |
| 177 | DrawablePtr pDrawable, int dx, int dy, int xOrg, int yOrg) |
| 178 | { |
| 179 | FbStip *stip; |
| 180 | FbStride stipStride; |
| 181 | int stipBpp; |
| 182 | _X_UNUSED int stipXoff, stipYoff; |
| 183 | |
| 184 | fbGetStipDrawable(&pBitmap->drawable, stip, stipStride, stipBpp, stipXoff, |
| 185 | stipYoff); |
| 186 | |
| 187 | fbPushImage(pDrawable, pGC, stip, stipStride, 0, xOrg, yOrg, dx, dy); |
| 188 | } |