390 lines
11 KiB
C
390 lines
11 KiB
C
/*
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* $Id$
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*
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* Copyright © 2003 Keith Packard
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*
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* Permission to use, copy, modify, distribute, and sell this software and its
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* documentation for any purpose is hereby granted without fee, provided that
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* the above copyright notice appear in all copies and that both that
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* copyright notice and this permission notice appear in supporting
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* documentation, and that the name of Keith Packard not be used in
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* advertising or publicity pertaining to distribution of the software without
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* specific, written prior permission. Keith Packard makes no
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* representations about the suitability of this software for any purpose. It
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* is provided "as is" without express or implied warranty.
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*
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* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
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* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
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* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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* PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "compint.h"
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int CompScreenPrivateIndex;
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int CompWindowPrivateIndex;
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int CompSubwindowsPrivateIndex;
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int CompGeneration;
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static Bool
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compCloseScreen (int index, ScreenPtr pScreen)
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{
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CompScreenPtr cs = GetCompScreen (pScreen);
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Bool ret;
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pScreen->CloseScreen = cs->CloseScreen;
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pScreen->BlockHandler = cs->BlockHandler;
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pScreen->InstallColormap = cs->InstallColormap;
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pScreen->ReparentWindow = cs->ReparentWindow;
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pScreen->MoveWindow = cs->MoveWindow;
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pScreen->ResizeWindow = cs->ResizeWindow;
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pScreen->ChangeBorderWidth = cs->ChangeBorderWidth;
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pScreen->ClipNotify = cs->ClipNotify;
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pScreen->PaintWindowBackground = cs->PaintWindowBackground;
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pScreen->UnrealizeWindow = cs->UnrealizeWindow;
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pScreen->RealizeWindow = cs->RealizeWindow;
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pScreen->DestroyWindow = cs->DestroyWindow;
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pScreen->CreateWindow = cs->CreateWindow;
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pScreen->CopyWindow = cs->CopyWindow;
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pScreen->PositionWindow = cs->PositionWindow;
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xfree (cs);
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pScreen->devPrivates[CompScreenPrivateIndex].ptr = 0;
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ret = (*pScreen->CloseScreen) (index, pScreen);
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return ret;
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}
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static void
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compInstallColormap (ColormapPtr pColormap)
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{
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VisualPtr pVisual = pColormap->pVisual;
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ScreenPtr pScreen = pColormap->pScreen;
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CompScreenPtr cs = GetCompScreen (pScreen);
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int a;
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for (a = 0; a < NUM_COMP_ALTERNATE_VISUALS; a++)
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if (pVisual->vid == cs->alternateVisuals[a])
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return;
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pScreen->InstallColormap = cs->InstallColormap;
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(*pScreen->InstallColormap) (pColormap);
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cs->InstallColormap = pScreen->InstallColormap;
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pScreen->InstallColormap = compInstallColormap;
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}
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static void
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compScreenUpdate (ScreenPtr pScreen)
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{
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CompScreenPtr cs = GetCompScreen (pScreen);
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compCheckTree (pScreen);
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if (cs->damaged)
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{
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compWindowUpdate (WindowTable[pScreen->myNum]);
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cs->damaged = FALSE;
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}
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}
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static void
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compBlockHandler (int i,
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pointer blockData,
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pointer pTimeout,
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pointer pReadmask)
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{
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ScreenPtr pScreen = screenInfo.screens[i];
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CompScreenPtr cs = GetCompScreen (pScreen);
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pScreen->BlockHandler = cs->BlockHandler;
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compScreenUpdate (pScreen);
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(*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
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cs->BlockHandler = pScreen->BlockHandler;
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pScreen->BlockHandler = compBlockHandler;
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}
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/*
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* Add alternate visuals -- always expose an ARGB32 and RGB24 visual
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*/
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static DepthPtr
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compFindVisuallessDepth (ScreenPtr pScreen, int d)
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{
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int i;
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for (i = 0; i < pScreen->numDepths; i++)
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{
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DepthPtr depth = &pScreen->allowedDepths[i];
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if (depth->depth == d)
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{
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/*
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* Make sure it doesn't have visuals already
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*/
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if (depth->numVids)
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return 0;
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/*
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* looks fine
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*/
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return depth;
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}
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}
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/*
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* If there isn't one, then it's gonna be hard to have
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* an associated visual
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*/
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return 0;
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}
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typedef struct _alternateVisual {
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int depth;
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CARD32 format;
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} CompAlternateVisual;
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static CompAlternateVisual altVisuals[NUM_COMP_ALTERNATE_VISUALS] = {
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#if COMP_INCLUDE_RGB24_VISUAL
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{ 24, PICT_r8g8b8 },
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#endif
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{ 32, PICT_a8r8g8b8 },
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};
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static Bool
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compAddAlternateVisuals (ScreenPtr pScreen, CompScreenPtr cs)
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{
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VisualPtr visuals;
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DepthPtr depths[NUM_COMP_ALTERNATE_VISUALS];
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PictFormatPtr pPictFormats[NUM_COMP_ALTERNATE_VISUALS];
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int i;
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int numVisuals;
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VisualID *vids[NUM_COMP_ALTERNATE_VISUALS];
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XID *installedCmaps;
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ColormapPtr installedCmap;
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int numInstalledCmaps;
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int numAlternate = 0;
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int alt;
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memset (cs->alternateVisuals, '\0', sizeof (cs->alternateVisuals));
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for (alt = 0; alt < NUM_COMP_ALTERNATE_VISUALS; alt++)
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{
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DepthPtr depth;
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PictFormatPtr pPictFormat;
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depth = compFindVisuallessDepth (pScreen, altVisuals[alt].depth);
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if (!depth)
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continue;
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/*
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* Find the right picture format
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*/
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pPictFormat = PictureMatchFormat (pScreen, altVisuals[alt].depth,
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altVisuals[alt].format);
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if (!pPictFormat)
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continue;
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/*
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* Allocate vid list for this depth
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*/
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vids[numAlternate] = xalloc (sizeof (VisualID));
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if (!vids[numAlternate])
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continue;
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depths[numAlternate] = depth;
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pPictFormats[numAlternate] = pPictFormat;
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numAlternate++;
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}
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if (!numAlternate)
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return TRUE;
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/*
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* Find the installed colormaps
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*/
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installedCmaps = xalloc (pScreen->maxInstalledCmaps * sizeof (XID));
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if (!installedCmaps)
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{
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for (alt = 0; alt < numAlternate; alt++)
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xfree (vids[alt]);
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return FALSE;
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}
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numInstalledCmaps = (*pScreen->ListInstalledColormaps) (pScreen,
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installedCmaps);
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/*
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* realloc the visual array to fit the new one in place
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*/
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numVisuals = pScreen->numVisuals;
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visuals = xrealloc (pScreen->visuals,
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(numVisuals + numAlternate) * sizeof (VisualRec));
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if (!visuals)
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{
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for (alt = 0; alt < numAlternate; alt++)
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xfree (vids[alt]);
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xfree (installedCmaps);
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return FALSE;
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}
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/*
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* Fix up any existing installed colormaps -- we'll assume that
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* the only ones created so far have been installed. If this
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* isn't true, we'll have to walk the resource database looking
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* for all colormaps.
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*/
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for (i = 0; i < numInstalledCmaps; i++)
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{
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int j;
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installedCmap = LookupIDByType (installedCmaps[i], RT_COLORMAP);
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if (!installedCmap)
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continue;
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j = installedCmap->pVisual - pScreen->visuals;
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installedCmap->pVisual = &visuals[j];
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}
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xfree (installedCmaps);
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pScreen->visuals = visuals;
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pScreen->numVisuals = numVisuals + numAlternate;
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for (alt = 0; alt < numAlternate; alt++)
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{
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DepthPtr depth = depths[alt];
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PictFormatPtr pPictFormat = pPictFormats[alt];
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VisualPtr visual = &visuals[numVisuals + alt];
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unsigned long alphaMask;
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/*
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* Initialize the visual
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*/
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visual->class = TrueColor;
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visual->bitsPerRGBValue = 8;
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visual->vid = FakeClientID (0);
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visual->redMask = (((unsigned long) pPictFormat->direct.redMask) <<
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pPictFormat->direct.red);
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visual->greenMask = (((unsigned long) pPictFormat->direct.greenMask) <<
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pPictFormat->direct.green);
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visual->blueMask = (((unsigned long) pPictFormat->direct.blueMask) <<
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pPictFormat->direct.blue);
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alphaMask = (((unsigned long) pPictFormat->direct.alphaMask) <<
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pPictFormat->direct.alpha);
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visual->offsetRed = pPictFormat->direct.red;
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visual->offsetGreen = pPictFormat->direct.green;
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visual->offsetBlue = pPictFormat->direct.blue;
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/*
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* Include A bits in this (unlike GLX which includes only RGB)
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* This lets DIX compute suitable masks for colormap allocations
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*/
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visual->nplanes = Ones (visual->redMask |
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visual->greenMask |
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visual->blueMask |
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alphaMask);
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/*
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* find widest component
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*/
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visual->ColormapEntries = (1 << max (Ones (visual->redMask),
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max (Ones (visual->greenMask),
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Ones (visual->blueMask))));
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/*
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* remember the visual ID to detect auto-update windows
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*/
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cs->alternateVisuals[alt] = visual->vid;
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/*
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* Fix up the depth
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*/
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vids[alt][0] = visual->vid;
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depth->numVids = 1;
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depth->vids = vids[alt];
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}
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return TRUE;
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}
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Bool
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compScreenInit (ScreenPtr pScreen)
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{
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CompScreenPtr cs;
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if (CompGeneration != serverGeneration)
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{
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CompScreenPrivateIndex = AllocateScreenPrivateIndex ();
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if (CompScreenPrivateIndex == -1)
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return FALSE;
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CompWindowPrivateIndex = AllocateWindowPrivateIndex ();
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if (CompWindowPrivateIndex == -1)
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return FALSE;
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CompSubwindowsPrivateIndex = AllocateWindowPrivateIndex ();
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if (CompSubwindowsPrivateIndex == -1)
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return FALSE;
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CompGeneration = serverGeneration;
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}
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if (!AllocateWindowPrivate (pScreen, CompWindowPrivateIndex, 0))
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return FALSE;
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if (!AllocateWindowPrivate (pScreen, CompSubwindowsPrivateIndex, 0))
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return FALSE;
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if (GetCompScreen (pScreen))
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return TRUE;
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cs = (CompScreenPtr) xalloc (sizeof (CompScreenRec));
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if (!cs)
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return FALSE;
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cs->damaged = FALSE;
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if (!compAddAlternateVisuals (pScreen, cs))
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{
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xfree (cs);
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return FALSE;
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}
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cs->PositionWindow = pScreen->PositionWindow;
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pScreen->PositionWindow = compPositionWindow;
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cs->CopyWindow = pScreen->CopyWindow;
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pScreen->CopyWindow = compCopyWindow;
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cs->CreateWindow = pScreen->CreateWindow;
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pScreen->CreateWindow = compCreateWindow;
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cs->DestroyWindow = pScreen->DestroyWindow;
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pScreen->DestroyWindow = compDestroyWindow;
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cs->RealizeWindow = pScreen->RealizeWindow;
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pScreen->RealizeWindow = compRealizeWindow;
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cs->UnrealizeWindow = pScreen->UnrealizeWindow;
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pScreen->UnrealizeWindow = compUnrealizeWindow;
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cs->PaintWindowBackground = pScreen->PaintWindowBackground;
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pScreen->PaintWindowBackground = compPaintWindowBackground;
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cs->ClipNotify = pScreen->ClipNotify;
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pScreen->ClipNotify = compClipNotify;
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cs->MoveWindow = pScreen->MoveWindow;
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pScreen->MoveWindow = compMoveWindow;
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cs->ResizeWindow = pScreen->ResizeWindow;
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pScreen->ResizeWindow = compResizeWindow;
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cs->ChangeBorderWidth = pScreen->ChangeBorderWidth;
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pScreen->ChangeBorderWidth = compChangeBorderWidth;
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cs->ReparentWindow = pScreen->ReparentWindow;
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pScreen->ReparentWindow = compReparentWindow;
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cs->InstallColormap = pScreen->InstallColormap;
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pScreen->InstallColormap = compInstallColormap;
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cs->BlockHandler = pScreen->BlockHandler;
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pScreen->BlockHandler = compBlockHandler;
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cs->CloseScreen = pScreen->CloseScreen;
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pScreen->CloseScreen = compCloseScreen;
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pScreen->devPrivates[CompScreenPrivateIndex].ptr = (pointer) cs;
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return TRUE;
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}
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