| 1 | /*
|
|---|
| 2 | *
|
|---|
| 3 | * Copyright © 2000 Keith Packard
|
|---|
| 4 | *
|
|---|
| 5 | * Permission to use, copy, modify, distribute, and sell this software and its
|
|---|
| 6 | * documentation for any purpose is hereby granted without fee, provided that
|
|---|
| 7 | * the above copyright notice appear in all copies and that both that
|
|---|
| 8 | * copyright notice and this permission notice appear in supporting
|
|---|
| 9 | * documentation, and that the name of Keith Packard not be used in
|
|---|
| 10 | * advertising or publicity pertaining to distribution of the software without
|
|---|
| 11 | * specific, written prior permission. Keith Packard makes no
|
|---|
| 12 | * representations about the suitability of this software for any purpose. It
|
|---|
| 13 | * is provided "as is" without express or implied warranty.
|
|---|
| 14 | *
|
|---|
| 15 | * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|---|
| 16 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|---|
| 17 | * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|---|
| 18 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|---|
| 19 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|---|
| 20 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|---|
| 21 | * PERFORMANCE OF THIS SOFTWARE.
|
|---|
| 22 | */
|
|---|
| 23 |
|
|---|
| 24 | /*
|
|---|
| 25 | * Thanks to Daniel Chemko <[email protected]> for making the 90 and 180
|
|---|
| 26 | * orientations work.
|
|---|
| 27 | */
|
|---|
| 28 |
|
|---|
| 29 | #ifdef HAVE_DIX_CONFIG_H
|
|---|
| 30 | #include <dix-config.h>
|
|---|
| 31 | #endif
|
|---|
| 32 |
|
|---|
| 33 | #include <stdlib.h>
|
|---|
| 34 |
|
|---|
| 35 | #include <X11/X.h>
|
|---|
| 36 | #include "scrnintstr.h"
|
|---|
| 37 | #include "windowstr.h"
|
|---|
| 38 | #include <X11/fonts/font.h>
|
|---|
| 39 | #include "dixfontstr.h"
|
|---|
| 40 | #include <X11/fonts/fontstruct.h>
|
|---|
| 41 | #include "mi.h"
|
|---|
| 42 | #include "regionstr.h"
|
|---|
| 43 | #include "globals.h"
|
|---|
| 44 | #include "gcstruct.h"
|
|---|
| 45 | #include "shadow.h"
|
|---|
| 46 | #include "fb.h"
|
|---|
| 47 |
|
|---|
| 48 | #define DANDEBUG 0
|
|---|
| 49 |
|
|---|
| 50 | #if ROTATE == 270
|
|---|
| 51 |
|
|---|
| 52 | #define SCRLEFT(x,y,w,h) (pScreen->height - ((y) + (h)))
|
|---|
| 53 | #define SCRY(x,y,w,h) (x)
|
|---|
| 54 | #define SCRWIDTH(x,y,w,h) (h)
|
|---|
| 55 | #define FIRSTSHA(x,y,w,h) (((y) + (h) - 1) * shaStride + (x))
|
|---|
| 56 | #define STEPDOWN(x,y,w,h) ((w)--)
|
|---|
| 57 | #define NEXTY(x,y,w,h) ((x)++)
|
|---|
| 58 | #define SHASTEPX(stride) -(stride)
|
|---|
| 59 | #define SHASTEPY(stride) (1)
|
|---|
| 60 |
|
|---|
| 61 | #elif ROTATE == 90
|
|---|
| 62 |
|
|---|
| 63 | #define SCRLEFT(x,y,w,h) (y)
|
|---|
| 64 | #define SCRY(x,y,w,h) (pScreen->width - ((x) + (w)) - 1)
|
|---|
| 65 | #define SCRWIDTH(x,y,w,h) (h)
|
|---|
| 66 | #define FIRSTSHA(x,y,w,h) ((y) * shaStride + (x + w - 1))
|
|---|
| 67 | #define STEPDOWN(x,y,w,h) ((w)--)
|
|---|
| 68 | #define NEXTY(x,y,w,h) ((void)(x))
|
|---|
| 69 | #define SHASTEPX(stride) (stride)
|
|---|
| 70 | #define SHASTEPY(stride) (-1)
|
|---|
| 71 |
|
|---|
| 72 | #elif ROTATE == 180
|
|---|
| 73 |
|
|---|
| 74 | #define SCRLEFT(x,y,w,h) (pScreen->width - ((x) + (w)))
|
|---|
| 75 | #define SCRY(x,y,w,h) (pScreen->height - ((y) + (h)) - 1)
|
|---|
| 76 | #define SCRWIDTH(x,y,w,h) (w)
|
|---|
| 77 | #define FIRSTSHA(x,y,w,h) ((y + h - 1) * shaStride + (x + w - 1))
|
|---|
| 78 | #define STEPDOWN(x,y,w,h) ((h)--)
|
|---|
| 79 | #define NEXTY(x,y,w,h) ((void)(y))
|
|---|
| 80 | #define SHASTEPX(stride) (-1)
|
|---|
| 81 | #define SHASTEPY(stride) -(stride)
|
|---|
| 82 |
|
|---|
| 83 | #else
|
|---|
| 84 |
|
|---|
| 85 | #define SCRLEFT(x,y,w,h) (x)
|
|---|
| 86 | #define SCRY(x,y,w,h) (y)
|
|---|
| 87 | #define SCRWIDTH(x,y,w,h) (w)
|
|---|
| 88 | #define FIRSTSHA(x,y,w,h) ((y) * shaStride + (x))
|
|---|
| 89 | #define STEPDOWN(x,y,w,h) ((h)--)
|
|---|
| 90 | #define NEXTY(x,y,w,h) ((y)++)
|
|---|
| 91 | #define SHASTEPX(stride) (1)
|
|---|
| 92 | #define SHASTEPY(stride) (stride)
|
|---|
| 93 |
|
|---|
| 94 | #endif
|
|---|
| 95 |
|
|---|
| 96 | void
|
|---|
| 97 | FUNC (ScreenPtr pScreen,
|
|---|
| 98 | shadowBufPtr pBuf)
|
|---|
| 99 | {
|
|---|
| 100 | RegionPtr damage = shadowDamage (pBuf);
|
|---|
| 101 | PixmapPtr pShadow = pBuf->pPixmap;
|
|---|
| 102 | int nbox = RegionNumRects (damage);
|
|---|
| 103 | BoxPtr pbox = RegionRects (damage);
|
|---|
| 104 | FbBits *shaBits;
|
|---|
| 105 | Data *shaBase, *shaLine, *sha;
|
|---|
| 106 | FbStride shaStride;
|
|---|
| 107 | int scrBase, scrLine, scr;
|
|---|
| 108 | int shaBpp;
|
|---|
| 109 | _X_UNUSED int shaXoff, shaYoff;
|
|---|
| 110 | int x, y, w, h, width;
|
|---|
| 111 | int i;
|
|---|
| 112 | Data *winBase = NULL, *win;
|
|---|
| 113 | CARD32 winSize;
|
|---|
| 114 |
|
|---|
| 115 | fbGetDrawable (&pShadow->drawable, shaBits, shaStride, shaBpp, shaXoff, shaYoff);
|
|---|
| 116 | shaBase = (Data *) shaBits;
|
|---|
| 117 | shaStride = shaStride * sizeof (FbBits) / sizeof (Data);
|
|---|
| 118 | #if (DANDEBUG > 1)
|
|---|
| 119 | ErrorF ("-> Entering Shadow Update:\r\n |- Origins: pShadow=%x, pScreen=%x, damage=%x\r\n |- Metrics: shaStride=%d, shaBase=%x, shaBpp=%d\r\n | \n", pShadow, pScreen, damage, shaStride, shaBase, shaBpp);
|
|---|
| 120 | #endif
|
|---|
| 121 | while (nbox--)
|
|---|
| 122 | {
|
|---|
| 123 | x = pbox->x1;
|
|---|
| 124 | y = pbox->y1;
|
|---|
| 125 | w = (pbox->x2 - pbox->x1);
|
|---|
| 126 | h = pbox->y2 - pbox->y1;
|
|---|
| 127 |
|
|---|
| 128 | #if (DANDEBUG > 2)
|
|---|
| 129 | ErrorF (" |-> Redrawing box - Metrics: X=%d, Y=%d, Width=%d, Height=%d\n", x, y, w, h);
|
|---|
| 130 | #endif
|
|---|
| 131 | scrLine = SCRLEFT(x,y,w,h);
|
|---|
| 132 | shaLine = shaBase + FIRSTSHA(x,y,w,h);
|
|---|
| 133 |
|
|---|
| 134 | while (STEPDOWN(x,y,w,h))
|
|---|
| 135 | {
|
|---|
| 136 | winSize = 0;
|
|---|
| 137 | scrBase = 0;
|
|---|
| 138 | width = SCRWIDTH(x,y,w,h);
|
|---|
| 139 | scr = scrLine;
|
|---|
| 140 | sha = shaLine;
|
|---|
| 141 | #if (DANDEBUG > 3)
|
|---|
| 142 | ErrorF (" | |-> StepDown - Metrics: width=%d, scr=%x, sha=%x\n", width, scr, sha);
|
|---|
| 143 | #endif
|
|---|
| 144 | while (width)
|
|---|
| 145 | {
|
|---|
| 146 | /* how much remains in this window */
|
|---|
| 147 | i = scrBase + winSize - scr;
|
|---|
| 148 | if (i <= 0 || scr < scrBase)
|
|---|
| 149 | {
|
|---|
| 150 | winBase = (Data *) (*pBuf->window) (pScreen,
|
|---|
| 151 | SCRY(x,y,w,h),
|
|---|
| 152 | scr * sizeof (Data),
|
|---|
| 153 | SHADOW_WINDOW_WRITE,
|
|---|
| 154 | &winSize,
|
|---|
| 155 | pBuf->closure);
|
|---|
| 156 | if(!winBase)
|
|---|
| 157 | return;
|
|---|
| 158 | scrBase = scr;
|
|---|
| 159 | winSize /= sizeof (Data);
|
|---|
| 160 | i = winSize;
|
|---|
| 161 | #if(DANDEBUG > 4)
|
|---|
| 162 | ErrorF (" | | |-> Starting New Line - Metrics: winBase=%x, scrBase=%x, winSize=%d\r\n | | | Xstride=%d, Ystride=%d, w=%d h=%d\n", winBase, scrBase, winSize, SHASTEPX(shaStride), SHASTEPY(shaStride), w, h);
|
|---|
| 163 | #endif
|
|---|
| 164 | }
|
|---|
| 165 | win = winBase + (scr - scrBase);
|
|---|
| 166 | if (i > width)
|
|---|
| 167 | i = width;
|
|---|
| 168 | width -= i;
|
|---|
| 169 | scr += i;
|
|---|
| 170 | #if(DANDEBUG > 5)
|
|---|
| 171 | ErrorF (" | | |-> Writing Line - Metrics: win=%x, sha=%x\n", win, sha);
|
|---|
| 172 | #endif
|
|---|
| 173 | while (i--)
|
|---|
| 174 | {
|
|---|
| 175 | #if(DANDEBUG > 6)
|
|---|
| 176 | ErrorF (" | | |-> Writing Pixel - Metrics: win=%x, sha=%d, remaining=%d\n", win, sha, i);
|
|---|
| 177 | #endif
|
|---|
| 178 | *win++ = *sha;
|
|---|
| 179 | sha += SHASTEPX(shaStride);
|
|---|
| 180 | } /* i */
|
|---|
| 181 | } /* width */
|
|---|
| 182 | shaLine += SHASTEPY(shaStride);
|
|---|
| 183 | NEXTY(x,y,w,h);
|
|---|
| 184 | } /* STEPDOWN */
|
|---|
| 185 | pbox++;
|
|---|
| 186 | } /* nbox */
|
|---|
| 187 | }
|
|---|
