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authormarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
committermarha <marha@users.sourceforge.net>2009-06-28 22:07:26 +0000
commit3562e78743202e43aec8727005182a2558117eca (patch)
tree8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /xorg-server/composite/compinit.c
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Checked in the following released items:
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Diffstat (limited to 'xorg-server/composite/compinit.c')
-rw-r--r--xorg-server/composite/compinit.c446
1 files changed, 446 insertions, 0 deletions
diff --git a/xorg-server/composite/compinit.c b/xorg-server/composite/compinit.c
new file mode 100644
index 000000000..3bf77e0ae
--- /dev/null
+++ b/xorg-server/composite/compinit.c
@@ -0,0 +1,446 @@
+/*
+ * Copyright © 2006 Sun Microsystems
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Sun Microsystems not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Sun Microsystems makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * SUN MICROSYSTEMS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL SUN MICROSYSTEMS BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Copyright © 2003 Keith Packard
+ *
+ * Permission to use, copy, modify, distribute, and sell this software and its
+ * documentation for any purpose is hereby granted without fee, provided that
+ * the above copyright notice appear in all copies and that both that
+ * copyright notice and this permission notice appear in supporting
+ * documentation, and that the name of Keith Packard not be used in
+ * advertising or publicity pertaining to distribution of the software without
+ * specific, written prior permission. Keith Packard makes no
+ * representations about the suitability of this software for any purpose. It
+ * is provided "as is" without express or implied warranty.
+ *
+ * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+ * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+ * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+ * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include "compint.h"
+
+DevPrivateKey CompScreenPrivateKey = &CompScreenPrivateKey;
+DevPrivateKey CompWindowPrivateKey = &CompWindowPrivateKey;
+DevPrivateKey CompSubwindowsPrivateKey = &CompSubwindowsPrivateKey;
+
+
+static Bool
+compCloseScreen (int index, ScreenPtr pScreen)
+{
+ CompScreenPtr cs = GetCompScreen (pScreen);
+ Bool ret;
+
+ xfree (cs->alternateVisuals);
+
+ pScreen->CloseScreen = cs->CloseScreen;
+ pScreen->BlockHandler = cs->BlockHandler;
+ pScreen->InstallColormap = cs->InstallColormap;
+ pScreen->ChangeWindowAttributes = cs->ChangeWindowAttributes;
+ pScreen->ReparentWindow = cs->ReparentWindow;
+ pScreen->MoveWindow = cs->MoveWindow;
+ pScreen->ResizeWindow = cs->ResizeWindow;
+ pScreen->ChangeBorderWidth = cs->ChangeBorderWidth;
+
+ pScreen->ClipNotify = cs->ClipNotify;
+ pScreen->UnrealizeWindow = cs->UnrealizeWindow;
+ pScreen->RealizeWindow = cs->RealizeWindow;
+ pScreen->DestroyWindow = cs->DestroyWindow;
+ pScreen->CreateWindow = cs->CreateWindow;
+ pScreen->CopyWindow = cs->CopyWindow;
+ pScreen->PositionWindow = cs->PositionWindow;
+
+ deleteCompOverlayClientsForScreen(pScreen);
+
+ /*
+ ** Note: no need to call DeleteWindow; the server has
+ ** already destroyed it.
+ */
+ cs->pOverlayWin = NULL;
+
+ xfree (cs);
+ dixSetPrivate(&pScreen->devPrivates, CompScreenPrivateKey, NULL);
+ ret = (*pScreen->CloseScreen) (index, pScreen);
+
+ return ret;
+}
+
+static void
+compInstallColormap (ColormapPtr pColormap)
+{
+ VisualPtr pVisual = pColormap->pVisual;
+ ScreenPtr pScreen = pColormap->pScreen;
+ CompScreenPtr cs = GetCompScreen (pScreen);
+ int a;
+
+ for (a = 0; a < cs->numAlternateVisuals; a++)
+ if (pVisual->vid == cs->alternateVisuals[a])
+ return;
+ pScreen->InstallColormap = cs->InstallColormap;
+ (*pScreen->InstallColormap) (pColormap);
+ cs->InstallColormap = pScreen->InstallColormap;
+ pScreen->InstallColormap = compInstallColormap;
+}
+
+/* Fake backing store via automatic redirection */
+static Bool
+compChangeWindowAttributes(WindowPtr pWin, unsigned long mask)
+{
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+ CompScreenPtr cs = GetCompScreen (pScreen);
+ Bool ret;
+
+ pScreen->ChangeWindowAttributes = cs->ChangeWindowAttributes;
+ ret = pScreen->ChangeWindowAttributes(pWin, mask);
+
+ if (ret && (mask & CWBackingStore) &&
+ pScreen->backingStoreSupport != NotUseful) {
+ if (pWin->backingStore != NotUseful) {
+ compRedirectWindow(serverClient, pWin, CompositeRedirectAutomatic);
+ pWin->backStorage = TRUE;
+ } else {
+ compUnredirectWindow(serverClient, pWin,
+ CompositeRedirectAutomatic);
+ pWin->backStorage = FALSE;
+ }
+ }
+
+ pScreen->ChangeWindowAttributes = compChangeWindowAttributes;
+
+ return ret;
+}
+
+static void
+compScreenUpdate (ScreenPtr pScreen)
+{
+ CompScreenPtr cs = GetCompScreen (pScreen);
+
+ compCheckTree (pScreen);
+ if (cs->damaged)
+ {
+ compWindowUpdate (WindowTable[pScreen->myNum]);
+ cs->damaged = FALSE;
+ }
+}
+
+static void
+compBlockHandler (int i,
+ pointer blockData,
+ pointer pTimeout,
+ pointer pReadmask)
+{
+ ScreenPtr pScreen = screenInfo.screens[i];
+ CompScreenPtr cs = GetCompScreen (pScreen);
+
+ pScreen->BlockHandler = cs->BlockHandler;
+ compScreenUpdate (pScreen);
+ (*pScreen->BlockHandler) (i, blockData, pTimeout, pReadmask);
+ cs->BlockHandler = pScreen->BlockHandler;
+ pScreen->BlockHandler = compBlockHandler;
+}
+
+/*
+ * Add alternate visuals -- always expose an ARGB32 and RGB24 visual
+ */
+
+static DepthPtr
+compFindVisuallessDepth (ScreenPtr pScreen, int d)
+{
+ int i;
+
+ for (i = 0; i < pScreen->numDepths; i++)
+ {
+ DepthPtr depth = &pScreen->allowedDepths[i];
+ if (depth->depth == d)
+ {
+ /*
+ * Make sure it doesn't have visuals already
+ */
+ if (depth->numVids)
+ return 0;
+ /*
+ * looks fine
+ */
+ return depth;
+ }
+ }
+ /*
+ * If there isn't one, then it's gonna be hard to have
+ * an associated visual
+ */
+ return 0;
+}
+
+/*
+ * Add a list of visual IDs to the list of visuals to implicitly redirect.
+ */
+static Bool
+compRegisterAlternateVisuals (CompScreenPtr cs, VisualID *vids, int nVisuals)
+{
+ VisualID *p;
+
+ p = xrealloc(cs->alternateVisuals,
+ sizeof(VisualID) * (cs->numAlternateVisuals + nVisuals));
+ if(p == NULL)
+ return FALSE;
+
+ memcpy(&p[cs->numAlternateVisuals], vids, sizeof(VisualID) * nVisuals);
+
+ cs->alternateVisuals = p;
+ cs->numAlternateVisuals += nVisuals;
+
+ return TRUE;
+}
+
+_X_EXPORT
+Bool CompositeRegisterAlternateVisuals (ScreenPtr pScreen, VisualID *vids,
+ int nVisuals)
+{
+ CompScreenPtr cs = GetCompScreen (pScreen);
+ return compRegisterAlternateVisuals(cs, vids, nVisuals);
+}
+
+typedef struct _alternateVisual {
+ int depth;
+ CARD32 format;
+} CompAlternateVisual;
+
+static CompAlternateVisual altVisuals[] = {
+#if COMP_INCLUDE_RGB24_VISUAL
+ { 24, PICT_r8g8b8 },
+#endif
+ { 32, PICT_a8r8g8b8 },
+};
+
+static const int NUM_COMP_ALTERNATE_VISUALS = sizeof(altVisuals) /
+ sizeof(CompAlternateVisual);
+
+static Bool
+compAddAlternateVisual(ScreenPtr pScreen, CompScreenPtr cs,
+ CompAlternateVisual *alt)
+{
+ VisualPtr visual, visuals;
+ int i;
+ int numVisuals;
+ XID *installedCmaps;
+ ColormapPtr installedCmap;
+ int numInstalledCmaps;
+ DepthPtr depth;
+ PictFormatPtr pPictFormat;
+ VisualID *vid;
+ unsigned long alphaMask;
+
+ /*
+ * The ARGB32 visual is always available. Other alternate depth visuals
+ * are only provided if their depth is less than the root window depth.
+ * There's no deep reason for this.
+ */
+ if (alt->depth >= pScreen->rootDepth && alt->depth != 32)
+ return FALSE;
+
+ depth = compFindVisuallessDepth (pScreen, alt->depth);
+ if (!depth)
+ /* alt->depth doesn't exist or already has alternate visuals. */
+ return TRUE;
+
+ pPictFormat = PictureMatchFormat (pScreen, alt->depth, alt->format);
+ if (!pPictFormat)
+ return FALSE;
+
+ vid = xalloc(sizeof(VisualID));
+ if (!vid)
+ return FALSE;
+
+ /* Find the installed colormaps */
+ installedCmaps = xalloc (pScreen->maxInstalledCmaps * sizeof (XID));
+ if (!installedCmaps) {
+ xfree(vid);
+ return FALSE;
+ }
+ numInstalledCmaps = pScreen->ListInstalledColormaps(pScreen,
+ installedCmaps);
+
+ /* realloc the visual array to fit the new one in place */
+ numVisuals = pScreen->numVisuals;
+ visuals = xrealloc(pScreen->visuals, (numVisuals + 1) * sizeof(VisualRec));
+ if (!visuals) {
+ xfree(vid);
+ xfree(installedCmaps);
+ return FALSE;
+ }
+
+ /*
+ * Fix up any existing installed colormaps -- we'll assume that
+ * the only ones created so far have been installed. If this
+ * isn't true, we'll have to walk the resource database looking
+ * for all colormaps.
+ */
+ for (i = 0; i < numInstalledCmaps; i++) {
+ int j;
+
+ installedCmap = LookupIDByType (installedCmaps[i], RT_COLORMAP);
+ if (!installedCmap)
+ continue;
+ j = installedCmap->pVisual - pScreen->visuals;
+ installedCmap->pVisual = &visuals[j];
+ }
+
+ xfree(installedCmaps);
+
+ pScreen->visuals = visuals;
+ visual = visuals + pScreen->numVisuals; /* the new one */
+ pScreen->numVisuals++;
+
+ /* Initialize the visual */
+ visual->vid = FakeClientID (0);
+ visual->bitsPerRGBValue = 8;
+ if (PICT_FORMAT_TYPE(alt->format) == PICT_TYPE_COLOR) {
+ visual->class = PseudoColor;
+ visual->nplanes = PICT_FORMAT_BPP(alt->format);
+ visual->ColormapEntries = 1 << visual->nplanes;
+ } else {
+ DirectFormatRec *direct = &pPictFormat->direct;
+ visual->class = TrueColor;
+ visual->redMask = ((unsigned long)direct->redMask) << direct->red;
+ visual->greenMask = ((unsigned long)direct->greenMask) << direct->green;
+ visual->blueMask = ((unsigned long)direct->blueMask) << direct->blue;
+ alphaMask = ((unsigned long)direct->alphaMask) << direct->alpha;
+ visual->offsetRed = direct->red;
+ visual->offsetGreen = direct->green;
+ visual->offsetBlue = direct->blue;
+ /*
+ * Include A bits in this (unlike GLX which includes only RGB)
+ * This lets DIX compute suitable masks for colormap allocations
+ */
+ visual->nplanes = Ones (visual->redMask |
+ visual->greenMask |
+ visual->blueMask |
+ alphaMask);
+ /* find widest component */
+ visual->ColormapEntries = (1 << max (Ones (visual->redMask),
+ max (Ones (visual->greenMask),
+ Ones (visual->blueMask))));
+ }
+
+ /* remember the visual ID to detect auto-update windows */
+ compRegisterAlternateVisuals(cs, &visual->vid, 1);
+
+ /* Fix up the depth */
+ *vid = visual->vid;
+ depth->numVids = 1;
+ depth->vids = vid;
+ return TRUE;
+}
+
+static Bool
+compAddAlternateVisuals (ScreenPtr pScreen, CompScreenPtr cs)
+{
+ int alt, ret = 0;
+
+ for (alt = 0; alt < NUM_COMP_ALTERNATE_VISUALS; alt++)
+ ret |= compAddAlternateVisual(pScreen, cs, altVisuals + alt);
+
+ return !!ret;
+}
+
+Bool
+compScreenInit (ScreenPtr pScreen)
+{
+ CompScreenPtr cs;
+
+ if (GetCompScreen (pScreen))
+ return TRUE;
+ cs = (CompScreenPtr) xalloc (sizeof (CompScreenRec));
+ if (!cs)
+ return FALSE;
+
+ cs->damaged = FALSE;
+ cs->pOverlayWin = NULL;
+ cs->pOverlayClients = NULL;
+
+ cs->numAlternateVisuals = 0;
+ cs->alternateVisuals = NULL;
+
+ if (!compAddAlternateVisuals (pScreen, cs))
+ {
+ xfree (cs);
+ return FALSE;
+ }
+
+ cs->PositionWindow = pScreen->PositionWindow;
+ pScreen->PositionWindow = compPositionWindow;
+
+ cs->CopyWindow = pScreen->CopyWindow;
+ pScreen->CopyWindow = compCopyWindow;
+
+ cs->CreateWindow = pScreen->CreateWindow;
+ pScreen->CreateWindow = compCreateWindow;
+
+ cs->DestroyWindow = pScreen->DestroyWindow;
+ pScreen->DestroyWindow = compDestroyWindow;
+
+ cs->RealizeWindow = pScreen->RealizeWindow;
+ pScreen->RealizeWindow = compRealizeWindow;
+
+ cs->UnrealizeWindow = pScreen->UnrealizeWindow;
+ pScreen->UnrealizeWindow = compUnrealizeWindow;
+
+ cs->ClipNotify = pScreen->ClipNotify;
+ pScreen->ClipNotify = compClipNotify;
+
+ cs->MoveWindow = pScreen->MoveWindow;
+ pScreen->MoveWindow = compMoveWindow;
+
+ cs->ResizeWindow = pScreen->ResizeWindow;
+ pScreen->ResizeWindow = compResizeWindow;
+
+ cs->ChangeBorderWidth = pScreen->ChangeBorderWidth;
+ pScreen->ChangeBorderWidth = compChangeBorderWidth;
+
+ cs->ReparentWindow = pScreen->ReparentWindow;
+ pScreen->ReparentWindow = compReparentWindow;
+
+ cs->InstallColormap = pScreen->InstallColormap;
+ pScreen->InstallColormap = compInstallColormap;
+
+ cs->ChangeWindowAttributes = pScreen->ChangeWindowAttributes;
+ pScreen->ChangeWindowAttributes = compChangeWindowAttributes;
+
+ cs->BlockHandler = pScreen->BlockHandler;
+ pScreen->BlockHandler = compBlockHandler;
+
+ cs->CloseScreen = pScreen->CloseScreen;
+ pScreen->CloseScreen = compCloseScreen;
+
+ dixSetPrivate(&pScreen->devPrivates, CompScreenPrivateKey, cs);
+
+ RegisterRealChildHeadProc(CompositeRealChildHead);
+
+ return TRUE;
+}