| 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 | #ifndef _ROOTLESSCOMMON_H
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| 36 | #define _ROOTLESSCOMMON_H
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| 37 |
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| 38 | #include "rootless.h"
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| 39 | #include "fb.h"
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| 40 |
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| 41 | #ifdef RENDER
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| 42 | #include "picturestr.h"
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| 43 | #endif
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| 44 |
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| 45 |
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| 46 | // Debug output, or not.
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| 47 | #ifdef ROOTLESSDEBUG
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| 48 | #define RL_DEBUG_MSG ErrorF
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| 49 | #else
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| 50 | #define RL_DEBUG_MSG(a, ...)
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| 51 | #endif
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| 52 |
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| 53 |
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| 54 | // Global variables
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| 55 | extern int rootlessGCPrivateIndex;
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| 56 | extern int rootlessScreenPrivateIndex;
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| 57 | extern int rootlessWindowPrivateIndex;
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| 58 |
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| 59 |
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| 60 | // RootlessGCRec: private per-gc data
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| 61 | typedef struct {
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| 62 | GCFuncs *originalFuncs;
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| 63 | GCOps *originalOps;
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| 64 | } RootlessGCRec;
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| 65 |
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| 66 |
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| 67 | // RootlessScreenRec: per-screen private data
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| 68 | typedef struct _RootlessScreenRec {
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| 69 | // Rootless implementation functions
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| 70 | RootlessFrameProcsPtr imp;
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| 71 |
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| 72 | // Wrapped screen functions
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| 73 | CreateScreenResourcesProcPtr CreateScreenResources;
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| 74 | CloseScreenProcPtr CloseScreen;
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| 75 |
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| 76 | CreateWindowProcPtr CreateWindow;
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| 77 | DestroyWindowProcPtr DestroyWindow;
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| 78 | RealizeWindowProcPtr RealizeWindow;
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| 79 | UnrealizeWindowProcPtr UnrealizeWindow;
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| 80 | MoveWindowProcPtr MoveWindow;
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| 81 | ResizeWindowProcPtr ResizeWindow;
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| 82 | RestackWindowProcPtr RestackWindow;
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| 83 | ReparentWindowProcPtr ReparentWindow;
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| 84 | ChangeBorderWidthProcPtr ChangeBorderWidth;
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| 85 | PositionWindowProcPtr PositionWindow;
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| 86 | ChangeWindowAttributesProcPtr ChangeWindowAttributes;
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| 87 |
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| 88 | CreateGCProcPtr CreateGC;
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| 89 | PaintWindowBackgroundProcPtr PaintWindowBackground;
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| 90 | PaintWindowBorderProcPtr PaintWindowBorder;
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| 91 | CopyWindowProcPtr CopyWindow;
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| 92 | GetImageProcPtr GetImage;
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| 93 | SourceValidateProcPtr SourceValidate;
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| 94 |
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| 95 | MarkOverlappedWindowsProcPtr MarkOverlappedWindows;
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| 96 | ValidateTreeProcPtr ValidateTree;
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| 97 |
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| 98 | #ifdef SHAPE
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| 99 | SetShapeProcPtr SetShape;
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| 100 | #endif
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| 101 |
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| 102 | #ifdef RENDER
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| 103 | CompositeProcPtr Composite;
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| 104 | GlyphsProcPtr Glyphs;
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| 105 | #endif
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| 106 |
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| 107 | void *pixmap_data;
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| 108 | unsigned int pixmap_data_size;
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| 109 |
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| 110 | void *redisplay_timer;
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| 111 | unsigned int redisplay_timer_set :1;
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| 112 | unsigned int redisplay_queued :1;
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| 113 | unsigned int redisplay_expired :1;
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| 114 | } RootlessScreenRec, *RootlessScreenPtr;
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| 115 |
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| 116 |
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| 117 | #undef MIN
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| 118 | #define MIN(x,y) ((x) < (y) ? (x) : (y))
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| 119 | #undef MAX
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| 120 | #define MAX(x,y) ((x) > (y) ? (x) : (y))
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| 121 |
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| 122 | // "Definition of the Porting Layer for the X11 Sample Server" says
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| 123 | // unwrap and rewrap of screen functions is unnecessary, but
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| 124 | // screen->CreateGC changes after a call to cfbCreateGC.
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| 125 |
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| 126 | #define SCREEN_UNWRAP(screen, fn) \
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| 127 | screen->fn = SCREENREC(screen)->fn;
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| 128 |
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| 129 | #define SCREEN_WRAP(screen, fn) \
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| 130 | SCREENREC(screen)->fn = screen->fn; \
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| 131 | screen->fn = Rootless##fn
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| 132 |
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| 133 |
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| 134 | // Accessors for screen and window privates
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| 135 |
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| 136 | #define SCREENREC(pScreen) \
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| 137 | ((RootlessScreenRec *)(pScreen)->devPrivates[rootlessScreenPrivateIndex].ptr)
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| 138 |
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| 139 | #define WINREC(pWin) \
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| 140 | ((RootlessWindowRec *)(pWin)->devPrivates[rootlessWindowPrivateIndex].ptr)
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| 141 |
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| 142 |
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| 143 | // Call a rootless implementation function.
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| 144 | // Many rootless implementation functions are allowed to be NULL.
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| 145 | #define CallFrameProc(pScreen, proc, params) \
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| 146 | if (SCREENREC(pScreen)->frameProcs.proc) { \
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| 147 | RL_DEBUG_MSG("calling frame proc " #proc " "); \
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| 148 | SCREENREC(pScreen)->frameProcs.proc params; \
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| 149 | }
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| 150 |
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| 151 |
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| 152 | // BoxRec manipulators
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| 153 | // Copied from shadowfb
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| 154 |
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| 155 | #define TRIM_BOX(box, pGC) { \
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| 156 | BoxPtr extents = &pGC->pCompositeClip->extents;\
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| 157 | if(box.x1 < extents->x1) box.x1 = extents->x1; \
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| 158 | if(box.x2 > extents->x2) box.x2 = extents->x2; \
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| 159 | if(box.y1 < extents->y1) box.y1 = extents->y1; \
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| 160 | if(box.y2 > extents->y2) box.y2 = extents->y2; \
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| 161 | }
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| 162 |
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| 163 | #define TRANSLATE_BOX(box, pDraw) { \
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| 164 | box.x1 += pDraw->x; \
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| 165 | box.x2 += pDraw->x; \
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| 166 | box.y1 += pDraw->y; \
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| 167 | box.y2 += pDraw->y; \
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| 168 | }
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| 169 |
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| 170 | #define TRIM_AND_TRANSLATE_BOX(box, pDraw, pGC) { \
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| 171 | TRANSLATE_BOX(box, pDraw); \
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| 172 | TRIM_BOX(box, pGC); \
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| 173 | }
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| 174 |
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| 175 | #define BOX_NOT_EMPTY(box) \
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| 176 | (((box.x2 - box.x1) > 0) && ((box.y2 - box.y1) > 0))
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| 177 |
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| 178 |
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| 179 | // HUGE_ROOT and NORMAL_ROOT
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| 180 | // We don't want to clip windows to the edge of the screen.
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| 181 | // HUGE_ROOT temporarily makes the root window really big.
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| 182 | // This is needed as a wrapper around any function that calls
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| 183 | // SetWinSize or SetBorderSize which clip a window against its
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| 184 | // parents, including the root.
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| 185 |
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| 186 | extern RegionRec rootlessHugeRoot;
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| 187 |
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| 188 | #define HUGE_ROOT(pWin) \
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| 189 | do { \
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| 190 | WindowPtr w = pWin; \
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| 191 | while (w->parent) \
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| 192 | w = w->parent; \
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| 193 | saveRoot = w->winSize; \
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| 194 | w->winSize = rootlessHugeRoot; \
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| 195 | } while (0)
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| 196 |
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| 197 | #define NORMAL_ROOT(pWin) \
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| 198 | do { \
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| 199 | WindowPtr w = pWin; \
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| 200 | while (w->parent) \
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| 201 | w = w->parent; \
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| 202 | w->winSize = saveRoot; \
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| 203 | } while (0)
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| 204 |
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| 205 |
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| 206 | // Returns TRUE if this window is a top-level window (i.e. child of the root)
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| 207 | // The root is not a top-level window.
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| 208 | #define IsTopLevel(pWin) \
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| 209 | ((pWin) && (pWin)->parent && !(pWin)->parent->parent)
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| 210 |
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| 211 | // Returns TRUE if this window is a root window
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| 212 | #define IsRoot(pWin) \
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| 213 | ((pWin) == WindowTable[(pWin)->drawable.pScreen->myNum])
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| 214 |
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| 215 |
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| 216 | /*
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| 217 | * SetPixmapBaseToScreen
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| 218 | * Move the given pixmap's base address to where pixel (0, 0)
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| 219 | * would be if the pixmap's actual data started at (x, y).
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| 220 | * Can't access the bits before the first word of the drawable's data in
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| 221 | * rootless mode, so make sure our base address is always 32-bit aligned.
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| 222 | */
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| 223 | #define SetPixmapBaseToScreen(pix, _x, _y) { \
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| 224 | PixmapPtr _pPix = (PixmapPtr) (pix); \
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| 225 | _pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
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| 226 | ((int)(_x) * _pPix->drawable.bitsPerPixel/8 + \
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| 227 | (int)(_y) * _pPix->devKind); \
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| 228 | if (_pPix->drawable.bitsPerPixel != FB_UNIT) { \
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| 229 | unsigned _diff = ((unsigned) _pPix->devPrivate.ptr) & \
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| 230 | (FB_UNIT / CHAR_BIT - 1); \
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| 231 | _pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
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| 232 | _diff; \
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| 233 | _pPix->drawable.x = _diff / \
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| 234 | (_pPix->drawable.bitsPerPixel / CHAR_BIT); \
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| 235 | } \
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| 236 | }
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| 237 |
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| 238 |
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| 239 | // Returns TRUE if this window is visible inside a frame
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| 240 | // (e.g. it is visible and has a top-level or root parent)
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| 241 | Bool IsFramedWindow(WindowPtr pWin);
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| 242 |
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| 243 | // Routines that cause regions to get redrawn.
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| 244 | // DamageRegion and DamageRect are in global coordinates.
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| 245 | // DamageBox is in window-local coordinates.
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| 246 | void RootlessDamageRegion(WindowPtr pWindow, RegionPtr pRegion);
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| 247 | void RootlessDamageRect(WindowPtr pWindow, int x, int y, int w, int h);
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| 248 | void RootlessDamageBox(WindowPtr pWindow, BoxPtr pBox);
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| 249 | void RootlessRedisplay(WindowPtr pWindow);
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| 250 | void RootlessRedisplayScreen(ScreenPtr pScreen);
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| 251 |
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| 252 | void RootlessQueueRedisplay(ScreenPtr pScreen);
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| 253 |
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| 254 | // Move a window to its proper location on the screen.
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| 255 | void RootlessRepositionWindow(WindowPtr pWin);
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| 256 |
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| 257 | // Move the window to it's correct place in the physical stacking order.
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| 258 | void RootlessReorderWindow(WindowPtr pWin);
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| 259 |
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| 260 | #endif /* _ROOTLESSCOMMON_H */
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