x11include/xorg-server-1.14.0/shrotpack.h

03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync/*
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync *
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * Copyright © 2000 Keith Packard
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync *
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * Permission to use, copy, modify, distribute, and sell this software and its
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * documentation for any purpose is hereby granted without fee, provided that
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * the above copyright notice appear in all copies and that both that
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * copyright notice and this permission notice appear in supporting
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * documentation, and that the name of Keith Packard not be used in
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * advertising or publicity pertaining to distribution of the software without
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * specific, written prior permission.  Keith Packard makes no
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * representations about the suitability of this software for any purpose.  It
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * is provided "as is" without express or implied warranty.
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync *
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * PERFORMANCE OF THIS SOFTWARE.
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync */
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync/*
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * Thanks to Daniel Chemko <dchemko@intrinsyc.com> for making the 90 and 180
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync * orientations work.
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync */
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#ifdef HAVE_DIX_CONFIG_H
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include <dix-config.h>
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include <stdlib.h>
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    <X11/X.h>
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "scrnintstr.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "windowstr.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    <X11/fonts/font.h>
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "dixfontstr.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    <X11/fonts/fontstruct.h>
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "mi.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "regionstr.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "globals.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "gcstruct.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "shadow.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#include    "fb.h"
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define DANDEBUG         0
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#if ROTATE == 270
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRLEFT(x,y,w,h)    (pScreen->height - ((y) + (h)))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRY(x,y,w,h)       (x)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRWIDTH(x,y,w,h)   (h)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define FIRSTSHA(x,y,w,h)   (((y) + (h) - 1) * shaStride + (x))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define STEPDOWN(x,y,w,h)   ((w)--)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define NEXTY(x,y,w,h)      ((x)++)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPX(stride)    -(stride)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPY(stride)    (1)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#elif ROTATE == 90
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRLEFT(x,y,w,h)    (y)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRY(x,y,w,h)       (pScreen->width - ((x) + (w)) - 1)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRWIDTH(x,y,w,h)   (h)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define FIRSTSHA(x,y,w,h)   ((y) * shaStride + (x + w - 1))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define STEPDOWN(x,y,w,h)   ((w)--)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define NEXTY(x,y,w,h)      ((void)(x))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPX(stride)    (stride)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPY(stride)    (-1)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#elif ROTATE == 180
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRLEFT(x,y,w,h)    (pScreen->width - ((x) + (w)))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRY(x,y,w,h)       (pScreen->height - ((y) + (h)) - 1)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRWIDTH(x,y,w,h)   (w)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define FIRSTSHA(x,y,w,h)   ((y + h - 1) * shaStride + (x + w - 1))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define STEPDOWN(x,y,w,h)   ((h)--)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define NEXTY(x,y,w,h)      ((void)(y))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPX(stride)    (-1)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPY(stride)    -(stride)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#else
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRLEFT(x,y,w,h)    (x)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRY(x,y,w,h)       (y)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SCRWIDTH(x,y,w,h)   (w)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define FIRSTSHA(x,y,w,h)   ((y) * shaStride + (x))
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define STEPDOWN(x,y,w,h)   ((h)--)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define NEXTY(x,y,w,h)      ((y)++)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPX(stride)    (1)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#define SHASTEPY(stride)    (stride)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsyncvoid
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsyncFUNC(ScreenPtr pScreen, shadowBufPtr pBuf)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync{
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    RegionPtr damage = shadowDamage(pBuf);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    PixmapPtr pShadow = pBuf->pPixmap;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    int nbox = RegionNumRects(damage);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    BoxPtr pbox = RegionRects(damage);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    FbBits *shaBits;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    Data *shaBase, *shaLine, *sha;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    FbStride shaStride;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    int scrBase, scrLine, scr;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    int shaBpp;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    _X_UNUSED int shaXoff, shaYoff;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    int x, y, w, h, width;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    int i;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    Data *winBase = NULL, *win;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    CARD32 winSize;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    fbGetDrawable(&pShadow->drawable, shaBits, shaStride, shaBpp, shaXoff,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                  shaYoff);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    shaBase = (Data *) shaBits;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    shaStride = shaStride * sizeof(FbBits) / sizeof(Data);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#if (DANDEBUG > 1)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    ErrorF
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        ("-> Entering Shadow Update:\r\n   |- Origins: pShadow=%x, pScreen=%x, damage=%x\r\n   |- Metrics: shaStride=%d, shaBase=%x, shaBpp=%d\r\n   |                                                     \n",
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync         pShadow, pScreen, damage, shaStride, shaBase, shaBpp);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    while (nbox--) {
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        x = pbox->x1;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        y = pbox->y1;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        w = (pbox->x2 - pbox->x1);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        h = pbox->y2 - pbox->y1;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#if (DANDEBUG > 2)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        ErrorF
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            ("   |-> Redrawing box - Metrics: X=%d, Y=%d, Width=%d, Height=%d\n",
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync             x, y, w, h);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        scrLine = SCRLEFT(x, y, w, h);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        shaLine = shaBase + FIRSTSHA(x, y, w, h);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        while (STEPDOWN(x, y, w, h)) {
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            winSize = 0;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            scrBase = 0;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            width = SCRWIDTH(x, y, w, h);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            scr = scrLine;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            sha = shaLine;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#if (DANDEBUG > 3)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            ErrorF("   |   |-> StepDown - Metrics: width=%d, scr=%x, sha=%x\n",
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                   width, scr, sha);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            while (width) {
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                /*  how much remains in this window */
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                i = scrBase + winSize - scr;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                if (i <= 0 || scr < scrBase) {
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    winBase = (Data *) (*pBuf->window) (pScreen,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                                                        SCRY(x, y, w, h),
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                                                        scr * sizeof(Data),
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                                                        SHADOW_WINDOW_WRITE,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                                                        &winSize,
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                                                        pBuf->closure);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    if (!winBase)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                        return;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    scrBase = scr;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    winSize /= sizeof(Data);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    i = winSize;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#if(DANDEBUG > 4)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    ErrorF
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                        ("   |   |   |-> Starting New Line - Metrics: winBase=%x, scrBase=%x, winSize=%d\r\n   |   |   |   Xstride=%d, Ystride=%d, w=%d h=%d\n",
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                         winBase, scrBase, winSize, SHASTEPX(shaStride),
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                         SHASTEPY(shaStride), w, h);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                }
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                win = winBase + (scr - scrBase);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                if (i > width)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    i = width;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                width -= i;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                scr += i;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#if(DANDEBUG > 5)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                ErrorF
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    ("   |   |   |-> Writing Line - Metrics: win=%x, sha=%x\n",
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                     win, sha);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                while (i--) {
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#if(DANDEBUG > 6)
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    ErrorF
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                        ("   |   |   |-> Writing Pixel - Metrics: win=%x, sha=%d, remaining=%d\n",
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                         win, sha, i);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync#endif
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    *win++ = *sha;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                    sha += SHASTEPX(shaStride);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync                }               /*  i */
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            }                   /*  width */
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            shaLine += SHASTEPY(shaStride);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync            NEXTY(x, y, w, h);
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        }                       /*  STEPDOWN */
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync        pbox++;
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync    }                           /*  nbox */
03532efdc331b598d3dedc8cc7477641c3b0dd12vboxsync}