| 1 | /*
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| 2 | * Common internal rootless definitions and code
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| 3 | */
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| 4 | /*
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| 5 | * Copyright (c) 2001 Greg Parker. All Rights Reserved.
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| 6 | * Copyright (c) 2002-2004 Torrey T. Lyons. All Rights Reserved.
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| 7 | *
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| 8 | * Permission is hereby granted, free of charge, to any person obtaining a
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| 9 | * copy of this software and associated documentation files (the "Software"),
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| 10 | * to deal in the Software without restriction, including without limitation
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| 11 | * the rights to use, copy, modify, merge, publish, distribute, sublicense,
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| 12 | * and/or sell copies of the Software, and to permit persons to whom the
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| 13 | * Software is furnished to do so, subject to the following conditions:
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| 14 | *
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| 15 | * The above copyright notice and this permission notice shall be included in
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| 16 | * all copies or substantial portions of the Software.
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| 17 | *
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| 18 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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| 19 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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| 20 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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| 21 | * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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| 22 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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| 23 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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| 24 | * DEALINGS IN THE SOFTWARE.
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| 25 | *
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| 26 | * Except as contained in this notice, the name(s) of the above copyright
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| 27 | * holders shall not be used in advertising or otherwise to promote the sale,
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| 28 | * use or other dealings in this Software without prior written authorization.
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| 29 | */
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| 30 |
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| 31 | #ifdef HAVE_DIX_CONFIG_H
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| 32 | #include <dix-config.h>
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| 33 | #endif
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| 34 |
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| 35 | #include <stdint.h>
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| 36 | #ifndef _ROOTLESSCOMMON_H
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| 37 | #define _ROOTLESSCOMMON_H
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| 38 |
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| 39 | #include "misc.h"
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| 40 | #include "rootless.h"
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| 41 | #include "fb.h"
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| 42 |
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| 43 | #include "scrnintstr.h"
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| 44 |
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| 45 | #include "picturestr.h"
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| 46 |
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| 47 | // Debug output, or not.
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| 48 | #ifdef ROOTLESSDEBUG
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| 49 | #define RL_DEBUG_MSG ErrorF
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| 50 | #else
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| 51 | #define RL_DEBUG_MSG(a, ...)
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| 52 | #endif
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| 53 |
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| 54 | // Global variables
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| 55 | extern DevPrivateKeyRec rootlessGCPrivateKeyRec;
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| 56 |
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| 57 | #define rootlessGCPrivateKey (&rootlessGCPrivateKeyRec)
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| 58 |
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| 59 | extern DevPrivateKeyRec rootlessScreenPrivateKeyRec;
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| 60 |
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| 61 | #define rootlessScreenPrivateKey (&rootlessScreenPrivateKeyRec)
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| 62 |
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| 63 | extern DevPrivateKeyRec rootlessWindowPrivateKeyRec;
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| 64 |
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| 65 | #define rootlessWindowPrivateKey (&rootlessWindowPrivateKeyRec)
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| 66 |
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| 67 | extern DevPrivateKeyRec rootlessWindowOldPixmapPrivateKeyRec;
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| 68 |
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| 69 | #define rootlessWindowOldPixmapPrivateKey (&rootlessWindowOldPixmapPrivateKeyRec)
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| 70 |
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| 71 | // RootlessGCRec: private per-gc data
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| 72 | typedef struct {
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| 73 | GCFuncs *originalFuncs;
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| 74 | GCOps *originalOps;
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| 75 | } RootlessGCRec;
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| 76 |
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| 77 | // RootlessScreenRec: per-screen private data
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| 78 | typedef struct _RootlessScreenRec {
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| 79 | // Rootless implementation functions
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| 80 | RootlessFrameProcsPtr imp;
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| 81 |
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| 82 | // Wrapped screen functions
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| 83 | CreateScreenResourcesProcPtr CreateScreenResources;
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| 84 | CloseScreenProcPtr CloseScreen;
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| 85 |
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| 86 | CreateWindowProcPtr CreateWindow;
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| 87 | DestroyWindowProcPtr DestroyWindow;
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| 88 | RealizeWindowProcPtr RealizeWindow;
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| 89 | UnrealizeWindowProcPtr UnrealizeWindow;
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| 90 | MoveWindowProcPtr MoveWindow;
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| 91 | ResizeWindowProcPtr ResizeWindow;
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| 92 | RestackWindowProcPtr RestackWindow;
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| 93 | ReparentWindowProcPtr ReparentWindow;
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| 94 | ChangeBorderWidthProcPtr ChangeBorderWidth;
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| 95 | PositionWindowProcPtr PositionWindow;
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| 96 | ChangeWindowAttributesProcPtr ChangeWindowAttributes;
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| 97 |
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| 98 | CreateGCProcPtr CreateGC;
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| 99 | CopyWindowProcPtr CopyWindow;
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| 100 | GetImageProcPtr GetImage;
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| 101 | SourceValidateProcPtr SourceValidate;
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| 102 |
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| 103 | MarkOverlappedWindowsProcPtr MarkOverlappedWindows;
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| 104 | ValidateTreeProcPtr ValidateTree;
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| 105 |
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| 106 | SetShapeProcPtr SetShape;
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| 107 |
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| 108 | CompositeProcPtr Composite;
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| 109 | GlyphsProcPtr Glyphs;
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| 110 |
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| 111 | InstallColormapProcPtr InstallColormap;
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| 112 | UninstallColormapProcPtr UninstallColormap;
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| 113 | StoreColorsProcPtr StoreColors;
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| 114 |
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| 115 | void *pixmap_data;
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| 116 | unsigned int pixmap_data_size;
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| 117 |
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| 118 | ColormapPtr colormap;
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| 119 |
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| 120 | void *redisplay_timer;
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| 121 | unsigned int redisplay_timer_set:1;
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| 122 | unsigned int redisplay_queued:1;
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| 123 | unsigned int redisplay_expired:1;
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| 124 | unsigned int colormap_changed:1;
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| 125 | } RootlessScreenRec, *RootlessScreenPtr;
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| 126 |
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| 127 | // "Definition of the Porting Layer for the X11 Sample Server" says
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| 128 | // unwrap and rewrap of screen functions is unnecessary, but
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| 129 | // screen->CreateGC changes after a call to cfbCreateGC.
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| 130 |
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| 131 | #define SCREEN_UNWRAP(screen, fn) \
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| 132 | screen->fn = SCREENREC(screen)->fn;
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| 133 |
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| 134 | #define SCREEN_WRAP(screen, fn) \
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| 135 | SCREENREC(screen)->fn = screen->fn; \
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| 136 | screen->fn = Rootless##fn
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| 137 |
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| 138 | // Accessors for screen and window privates
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| 139 |
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| 140 | #define SCREENREC(pScreen) ((RootlessScreenRec *) \
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| 141 | dixLookupPrivate(&(pScreen)->devPrivates, rootlessScreenPrivateKey))
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| 142 |
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| 143 | #define SETSCREENREC(pScreen, v) \
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| 144 | dixSetPrivate(&(pScreen)->devPrivates, rootlessScreenPrivateKey, v)
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| 145 |
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| 146 | #define WINREC(pWin) ((RootlessWindowRec *) \
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| 147 | dixLookupPrivate(&(pWin)->devPrivates, rootlessWindowPrivateKey))
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| 148 |
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| 149 | #define SETWINREC(pWin, v) \
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| 150 | dixSetPrivate(&(pWin)->devPrivates, rootlessWindowPrivateKey, v)
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| 151 |
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| 152 | // Call a rootless implementation function.
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| 153 | // Many rootless implementation functions are allowed to be NULL.
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| 154 | #define CallFrameProc(pScreen, proc, params) \
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| 155 | if (SCREENREC(pScreen)->frameProcs.proc) { \
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| 156 | RL_DEBUG_MSG("calling frame proc " #proc " "); \
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| 157 | SCREENREC(pScreen)->frameProcs.proc params; \
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| 158 | }
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| 159 |
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| 160 | // BoxRec manipulators
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| 161 | // Copied from shadowfb
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| 162 |
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| 163 | #define TRIM_BOX(box, pGC) { \
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| 164 | BoxPtr extents = &pGC->pCompositeClip->extents;\
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| 165 | if(box.x1 < extents->x1) box.x1 = extents->x1; \
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| 166 | if(box.x2 > extents->x2) box.x2 = extents->x2; \
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| 167 | if(box.y1 < extents->y1) box.y1 = extents->y1; \
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| 168 | if(box.y2 > extents->y2) box.y2 = extents->y2; \
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| 169 | }
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| 170 |
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| 171 | #define TRANSLATE_BOX(box, pDraw) { \
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| 172 | box.x1 += pDraw->x; \
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| 173 | box.x2 += pDraw->x; \
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| 174 | box.y1 += pDraw->y; \
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| 175 | box.y2 += pDraw->y; \
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| 176 | }
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| 177 |
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| 178 | #define TRIM_AND_TRANSLATE_BOX(box, pDraw, pGC) { \
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| 179 | TRANSLATE_BOX(box, pDraw); \
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| 180 | TRIM_BOX(box, pGC); \
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| 181 | }
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| 182 |
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| 183 | #define BOX_NOT_EMPTY(box) \
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| 184 | (((box.x2 - box.x1) > 0) && ((box.y2 - box.y1) > 0))
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| 185 |
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| 186 | // HUGE_ROOT and NORMAL_ROOT
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| 187 | // We don't want to clip windows to the edge of the screen.
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| 188 | // HUGE_ROOT temporarily makes the root window really big.
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| 189 | // This is needed as a wrapper around any function that calls
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| 190 | // SetWinSize or SetBorderSize which clip a window against its
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| 191 | // parents, including the root.
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| 192 |
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| 193 | extern RegionRec rootlessHugeRoot;
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| 194 |
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| 195 | #define HUGE_ROOT(pWin) \
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| 196 | do { \
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| 197 | WindowPtr w = pWin; \
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| 198 | while (w->parent) \
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| 199 | w = w->parent; \
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| 200 | saveRoot = w->winSize; \
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| 201 | w->winSize = rootlessHugeRoot; \
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| 202 | } while (0)
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| 203 |
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| 204 | #define NORMAL_ROOT(pWin) \
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| 205 | do { \
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| 206 | WindowPtr w = pWin; \
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| 207 | while (w->parent) \
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| 208 | w = w->parent; \
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| 209 | w->winSize = saveRoot; \
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| 210 | } while (0)
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| 211 |
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| 212 | // Returns TRUE if this window is a top-level window (i.e. child of the root)
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| 213 | // The root is not a top-level window.
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| 214 | #define IsTopLevel(pWin) \
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| 215 | ((pWin) && (pWin)->parent && !(pWin)->parent->parent)
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| 216 |
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| 217 | // Returns TRUE if this window is a root window
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| 218 | #define IsRoot(pWin) \
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| 219 | ((pWin) == (pWin)->drawable.pScreen->root)
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| 220 |
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| 221 | /*
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| 222 | * SetPixmapBaseToScreen
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| 223 | * Move the given pixmap's base address to where pixel (0, 0)
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| 224 | * would be if the pixmap's actual data started at (x, y).
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| 225 | * Can't access the bits before the first word of the drawable's data in
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| 226 | * rootless mode, so make sure our base address is always 32-bit aligned.
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| 227 | */
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| 228 | #define SetPixmapBaseToScreen(pix, _x, _y) { \
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| 229 | PixmapPtr _pPix = (PixmapPtr) (pix); \
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| 230 | _pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
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| 231 | ((int)(_x) * _pPix->drawable.bitsPerPixel/8 + \
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| 232 | (int)(_y) * _pPix->devKind); \
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| 233 | if (_pPix->drawable.bitsPerPixel != FB_UNIT) { \
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| 234 | size_t _diff = ((size_t) _pPix->devPrivate.ptr) & \
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| 235 | (FB_UNIT / CHAR_BIT - 1); \
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| 236 | _pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
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| 237 | _diff; \
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| 238 | _pPix->drawable.x = _diff / \
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| 239 | (_pPix->drawable.bitsPerPixel / CHAR_BIT); \
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| 240 | } \
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| 241 | }
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| 242 |
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| 243 | // Returns TRUE if this window is visible inside a frame
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| 244 | // (e.g. it is visible and has a top-level or root parent)
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| 245 | Bool IsFramedWindow(WindowPtr pWin);
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| 246 |
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| 247 | // Routines that cause regions to get redrawn.
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| 248 | // DamageRegion and DamageRect are in global coordinates.
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| 249 | // DamageBox is in window-local coordinates.
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| 250 | void RootlessDamageRegion(WindowPtr pWindow, RegionPtr pRegion);
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| 251 | void RootlessDamageRect(WindowPtr pWindow, int x, int y, int w, int h);
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| 252 | void RootlessDamageBox(WindowPtr pWindow, BoxPtr pBox);
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| 253 | void RootlessRedisplay(WindowPtr pWindow);
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| 254 | void RootlessRedisplayScreen(ScreenPtr pScreen);
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| 255 |
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| 256 | void RootlessQueueRedisplay(ScreenPtr pScreen);
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| 257 |
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| 258 | /* Return the colormap currently installed on the given screen. */
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| 259 | ColormapPtr RootlessGetColormap(ScreenPtr pScreen);
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| 260 |
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| 261 | /* Convert colormap to ARGB. */
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| 262 | Bool RootlessResolveColormap(ScreenPtr pScreen, int first_color,
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| 263 | int n_colors, uint32_t * colors);
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| 264 |
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| 265 | void RootlessFlushWindowColormap(WindowPtr pWin);
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| 266 | void RootlessFlushScreenColormaps(ScreenPtr pScreen);
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| 267 |
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| 268 | // Move a window to its proper location on the screen.
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| 269 | void RootlessRepositionWindow(WindowPtr pWin);
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| 270 |
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| 271 | // Move the window to it's correct place in the physical stacking order.
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| 272 | void RootlessReorderWindow(WindowPtr pWin);
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| 273 |
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| 274 | void RootlessScreenExpose(ScreenPtr pScreen);
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| 275 | void RootlessHideAllWindows(void);
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| 276 | void RootlessShowAllWindows(void);
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| 277 | void RootlessUpdateRooted(Bool state);
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| 278 |
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| 279 | void RootlessEnableRoot(ScreenPtr pScreen);
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| 280 | void RootlessDisableRoot(ScreenPtr pScreen);
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| 281 |
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| 282 | void RootlessSetPixmapOfAncestors(WindowPtr pWin);
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| 283 |
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| 284 | #endif /* _ROOTLESSCOMMON_H */
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