261 lines
8.7 KiB
C
261 lines
8.7 KiB
C
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/*
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* Common internal rootless definitions and code
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*/
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/*
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* Copyright (c) 2001 Greg Parker. All Rights Reserved.
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* Copyright (c) 2002-2004 Torrey T. Lyons. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*
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* Except as contained in this notice, the name(s) of the above copyright
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* holders shall not be used in advertising or otherwise to promote the sale,
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* use or other dealings in this Software without prior written authorization.
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*/
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#ifdef HAVE_DIX_CONFIG_H
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#include <dix-config.h>
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#endif
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#ifndef _ROOTLESSCOMMON_H
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#define _ROOTLESSCOMMON_H
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#include "rootless.h"
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#include "fb.h"
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#ifdef RENDER
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#include "picturestr.h"
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#endif
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// Debug output, or not.
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#ifdef ROOTLESSDEBUG
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#define RL_DEBUG_MSG ErrorF
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#else
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#define RL_DEBUG_MSG(a, ...)
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#endif
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// Global variables
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extern int rootlessGCPrivateIndex;
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extern int rootlessScreenPrivateIndex;
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extern int rootlessWindowPrivateIndex;
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// RootlessGCRec: private per-gc data
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typedef struct {
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GCFuncs *originalFuncs;
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GCOps *originalOps;
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} RootlessGCRec;
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// RootlessScreenRec: per-screen private data
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typedef struct _RootlessScreenRec {
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// Rootless implementation functions
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RootlessFrameProcsPtr imp;
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// Wrapped screen functions
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CreateScreenResourcesProcPtr CreateScreenResources;
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CloseScreenProcPtr CloseScreen;
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CreateWindowProcPtr CreateWindow;
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DestroyWindowProcPtr DestroyWindow;
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RealizeWindowProcPtr RealizeWindow;
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UnrealizeWindowProcPtr UnrealizeWindow;
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MoveWindowProcPtr MoveWindow;
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ResizeWindowProcPtr ResizeWindow;
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RestackWindowProcPtr RestackWindow;
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ReparentWindowProcPtr ReparentWindow;
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ChangeBorderWidthProcPtr ChangeBorderWidth;
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PositionWindowProcPtr PositionWindow;
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ChangeWindowAttributesProcPtr ChangeWindowAttributes;
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CreateGCProcPtr CreateGC;
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PaintWindowBackgroundProcPtr PaintWindowBackground;
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PaintWindowBorderProcPtr PaintWindowBorder;
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CopyWindowProcPtr CopyWindow;
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GetImageProcPtr GetImage;
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SourceValidateProcPtr SourceValidate;
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MarkOverlappedWindowsProcPtr MarkOverlappedWindows;
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ValidateTreeProcPtr ValidateTree;
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#ifdef SHAPE
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SetShapeProcPtr SetShape;
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#endif
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#ifdef RENDER
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CompositeProcPtr Composite;
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GlyphsProcPtr Glyphs;
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#endif
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void *pixmap_data;
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unsigned int pixmap_data_size;
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void *redisplay_timer;
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unsigned int redisplay_timer_set :1;
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unsigned int redisplay_queued :1;
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unsigned int redisplay_expired :1;
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} RootlessScreenRec, *RootlessScreenPtr;
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#undef MIN
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#define MIN(x,y) ((x) < (y) ? (x) : (y))
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#undef MAX
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#define MAX(x,y) ((x) > (y) ? (x) : (y))
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// "Definition of the Porting Layer for the X11 Sample Server" says
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// unwrap and rewrap of screen functions is unnecessary, but
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// screen->CreateGC changes after a call to cfbCreateGC.
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#define SCREEN_UNWRAP(screen, fn) \
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screen->fn = SCREENREC(screen)->fn;
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#define SCREEN_WRAP(screen, fn) \
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SCREENREC(screen)->fn = screen->fn; \
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screen->fn = Rootless##fn
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// Accessors for screen and window privates
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#define SCREENREC(pScreen) \
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((RootlessScreenRec *)(pScreen)->devPrivates[rootlessScreenPrivateIndex].ptr)
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#define WINREC(pWin) \
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((RootlessWindowRec *)(pWin)->devPrivates[rootlessWindowPrivateIndex].ptr)
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// Call a rootless implementation function.
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// Many rootless implementation functions are allowed to be NULL.
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#define CallFrameProc(pScreen, proc, params) \
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if (SCREENREC(pScreen)->frameProcs.proc) { \
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RL_DEBUG_MSG("calling frame proc " #proc " "); \
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SCREENREC(pScreen)->frameProcs.proc params; \
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}
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// BoxRec manipulators
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// Copied from shadowfb
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#define TRIM_BOX(box, pGC) { \
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BoxPtr extents = &pGC->pCompositeClip->extents;\
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if(box.x1 < extents->x1) box.x1 = extents->x1; \
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if(box.x2 > extents->x2) box.x2 = extents->x2; \
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if(box.y1 < extents->y1) box.y1 = extents->y1; \
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if(box.y2 > extents->y2) box.y2 = extents->y2; \
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}
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#define TRANSLATE_BOX(box, pDraw) { \
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box.x1 += pDraw->x; \
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box.x2 += pDraw->x; \
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box.y1 += pDraw->y; \
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box.y2 += pDraw->y; \
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}
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#define TRIM_AND_TRANSLATE_BOX(box, pDraw, pGC) { \
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TRANSLATE_BOX(box, pDraw); \
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TRIM_BOX(box, pGC); \
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}
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#define BOX_NOT_EMPTY(box) \
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(((box.x2 - box.x1) > 0) && ((box.y2 - box.y1) > 0))
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// HUGE_ROOT and NORMAL_ROOT
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// We don't want to clip windows to the edge of the screen.
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// HUGE_ROOT temporarily makes the root window really big.
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// This is needed as a wrapper around any function that calls
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// SetWinSize or SetBorderSize which clip a window against its
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// parents, including the root.
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extern RegionRec rootlessHugeRoot;
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#define HUGE_ROOT(pWin) \
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do { \
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WindowPtr w = pWin; \
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while (w->parent) \
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w = w->parent; \
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saveRoot = w->winSize; \
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w->winSize = rootlessHugeRoot; \
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} while (0)
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#define NORMAL_ROOT(pWin) \
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do { \
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WindowPtr w = pWin; \
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while (w->parent) \
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w = w->parent; \
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w->winSize = saveRoot; \
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} while (0)
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// Returns TRUE if this window is a top-level window (i.e. child of the root)
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// The root is not a top-level window.
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#define IsTopLevel(pWin) \
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((pWin) && (pWin)->parent && !(pWin)->parent->parent)
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// Returns TRUE if this window is a root window
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#define IsRoot(pWin) \
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((pWin) == WindowTable[(pWin)->drawable.pScreen->myNum])
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/*
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* SetPixmapBaseToScreen
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* Move the given pixmap's base address to where pixel (0, 0)
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* would be if the pixmap's actual data started at (x, y).
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* Can't access the bits before the first word of the drawable's data in
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* rootless mode, so make sure our base address is always 32-bit aligned.
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*/
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#define SetPixmapBaseToScreen(pix, _x, _y) { \
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PixmapPtr _pPix = (PixmapPtr) (pix); \
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_pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
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((int)(_x) * _pPix->drawable.bitsPerPixel/8 + \
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(int)(_y) * _pPix->devKind); \
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if (_pPix->drawable.bitsPerPixel != FB_UNIT) { \
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unsigned _diff = ((unsigned) _pPix->devPrivate.ptr) & \
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(FB_UNIT / CHAR_BIT - 1); \
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_pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
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_diff; \
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_pPix->drawable.x = _diff / \
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(_pPix->drawable.bitsPerPixel / CHAR_BIT); \
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} \
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}
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// Returns TRUE if this window is visible inside a frame
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// (e.g. it is visible and has a top-level or root parent)
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Bool IsFramedWindow(WindowPtr pWin);
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// Routines that cause regions to get redrawn.
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// DamageRegion and DamageRect are in global coordinates.
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// DamageBox is in window-local coordinates.
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void RootlessDamageRegion(WindowPtr pWindow, RegionPtr pRegion);
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void RootlessDamageRect(WindowPtr pWindow, int x, int y, int w, int h);
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void RootlessDamageBox(WindowPtr pWindow, BoxPtr pBox);
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void RootlessRedisplay(WindowPtr pWindow);
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void RootlessRedisplayScreen(ScreenPtr pScreen);
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void RootlessQueueRedisplay(ScreenPtr pScreen);
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// Move a window to its proper location on the screen.
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void RootlessRepositionWindow(WindowPtr pWin);
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// Move the window to it's correct place in the physical stacking order.
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void RootlessReorderWindow(WindowPtr pWin);
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#endif /* _ROOTLESSCOMMON_H */
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