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authorReinhard Tartler <siretart@tauware.de>2011-10-10 18:02:52 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 18:02:52 +0200
commit5b4ca0f93c44d7bbc8d6a3eebdd5c458e3a84c14 (patch)
treeb6f59ec830436134aaccf47aa71a070aa2ad2992 /nx-X11/programs/Xserver/hw/nxagent/Pixmap.c
parente29a112097fa74b520ba619eb07e2e0e0a7f2f3e (diff)
parente01b9177b41f7d27a934d41fa38d550fa0026b45 (diff)
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Merge branch 'nxagent'
Diffstat (limited to 'nx-X11/programs/Xserver/hw/nxagent/Pixmap.c')
-rw-r--r--nx-X11/programs/Xserver/hw/nxagent/Pixmap.c1646
1 files changed, 1646 insertions, 0 deletions
diff --git a/nx-X11/programs/Xserver/hw/nxagent/Pixmap.c b/nx-X11/programs/Xserver/hw/nxagent/Pixmap.c
new file mode 100644
index 000000000..ad7e9c313
--- /dev/null
+++ b/nx-X11/programs/Xserver/hw/nxagent/Pixmap.c
@@ -0,0 +1,1646 @@
+/**************************************************************************/
+/* */
+/* Copyright (c) 2001, 2011 NoMachine, http://www.nomachine.com/. */
+/* */
+/* NXAGENT, NX protocol compression and NX extensions to this software */
+/* are copyright of NoMachine. Redistribution and use of the present */
+/* software is allowed according to terms specified in the file LICENSE */
+/* which comes in the source distribution. */
+/* */
+/* Check http://www.nomachine.com/licensing.html for applicability. */
+/* */
+/* NX and NoMachine are trademarks of Medialogic S.p.A. */
+/* */
+/* All rights reserved. */
+/* */
+/**************************************************************************/
+
+#include "scrnintstr.h"
+#include "miscstruct.h"
+#include "pixmapstr.h"
+#include "dixstruct.h"
+#include "regionstr.h"
+#include "../../include/gc.h"
+#include "servermd.h"
+#include "mi.h"
+
+#include "../../fb/fb.h"
+
+#include "Agent.h"
+#include "Display.h"
+#include "Screen.h"
+#include "Pixmaps.h"
+#include "Trap.h"
+#include "GCs.h"
+#include "GCOps.h"
+#include "Image.h"
+#include "Split.h"
+#include "Drawable.h"
+#include "Visual.h"
+#include "Client.h"
+#include "Events.h"
+#include "Holder.h"
+#include "Args.h"
+
+#include "NXlib.h"
+#include "NXpack.h"
+
+RESTYPE RT_NX_PIXMAP;
+
+/*
+ * Set here the required log level.
+ */
+
+#define PANIC
+#define WARNING
+#undef TEST
+#undef DEBUG
+#undef DUMP
+
+#ifdef TEST
+#include "Font.h"
+#endif
+
+int nxagentPixmapPrivateIndex;
+
+int nxagentCorruptedPixmaps;
+int nxagentCorruptedBackgrounds;
+
+/*
+ * Force deallocation of the virtual pixmap.
+ */
+
+static Bool nxagentDestroyVirtualPixmap(PixmapPtr pPixmap);
+
+/*
+ * This serves as a tool to check the synchronization
+ * between pixmaps in framebuffer and the correspondent
+ * pixmaps in the real X server.
+ */
+
+#ifdef TEST
+Bool nxagentCheckPixmapIntegrity(PixmapPtr pPixmap);
+#endif
+
+struct nxagentPixmapPair
+{
+ Pixmap pixmap;
+ PixmapPtr pMap;
+};
+
+PixmapPtr nxagentCreatePixmap(ScreenPtr pScreen, int width,
+ int height, int depth)
+{
+ nxagentPrivPixmapPtr pPixmapPriv, pVirtualPriv;
+
+ PixmapPtr pPixmap;
+ PixmapPtr pVirtual;
+
+ #ifdef DEBUG
+ fprintf(stderr, "nxagentCreatePixmap: Creating pixmap with width [%d] "
+ "height [%d] depth [%d].\n", width, height, depth);
+ #endif
+
+ /*
+ * Create the pixmap structure but do
+ * not allocate memory for the data.
+ */
+
+ pPixmap = AllocatePixmap(pScreen, 0);
+
+ if (!pPixmap)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentCreatePixmap: WARNING! Failed to create pixmap with "
+ "width [%d] height [%d] depth [%d].\n", width, height, depth);
+ #endif
+
+ return NullPixmap;
+ }
+
+ /*
+ * Initialize the core members.
+ */
+
+ pPixmap -> drawable.type = DRAWABLE_PIXMAP;
+ pPixmap -> drawable.class = 0;
+ pPixmap -> drawable.pScreen = pScreen;
+ pPixmap -> drawable.depth = depth;
+ pPixmap -> drawable.bitsPerPixel = BitsPerPixel(depth);
+ pPixmap -> drawable.id = 0;
+ pPixmap -> drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pPixmap -> drawable.x = 0;
+ pPixmap -> drawable.y = 0;
+ pPixmap -> drawable.width = width;
+ pPixmap -> drawable.height = height;
+ pPixmap -> devKind = 0;
+ pPixmap -> refcnt = 1;
+ pPixmap -> devPrivate.ptr = NULL;
+
+ /*
+ * Initialize the privates of the real picture.
+ */
+
+ pPixmapPriv = nxagentPixmapPriv(pPixmap);
+
+ pPixmapPriv -> isVirtual = False;
+ pPixmapPriv -> isShared = nxagentShmPixmapTrap;
+
+ /*
+ * The shared memory pixmaps are never
+ * synchronized with the remote X Server.
+ */
+
+ if (pPixmapPriv -> isShared == 1)
+ {
+ BoxRec box;
+
+ box.x1 = 0;
+ box.y1 = 0;
+ box.x2 = width;
+ box.y2 = height;
+
+ pPixmapPriv -> corruptedRegion = REGION_CREATE(pPixmap -> drawable.pScreen, &box, 1);
+ }
+ else
+ {
+ pPixmapPriv -> corruptedRegion = REGION_CREATE(pPixmap -> drawable.pScreen, (BoxRec *) NULL, 1);
+ }
+
+ pPixmapPriv -> corruptedBackground = 0;
+
+ pPixmapPriv -> containGlyphs = 0;
+ pPixmapPriv -> containTrapezoids = 0;
+
+ /*
+ * The lazy encoding policy generally does
+ * not send on remote X server the off-screen
+ * images, by preferring to synchronize the
+ * windows content. Anyway this behaviour may
+ * be inadvisable if a pixmap is used, for
+ * example, for multiple copy areas on screen.
+ * This counter serves the purpose, taking in-
+ * to account the number of times the pixmap
+ * has been used as source for a deferred
+ * operation.
+ */
+
+ pPixmapPriv -> usageCounter = 0;
+
+ pPixmapPriv -> corruptedBackgroundId = 0;
+ pPixmapPriv -> corruptedId = 0;
+
+ pPixmapPriv -> synchronizationBitmap = NullPixmap;
+
+ pPixmapPriv -> corruptedTimestamp = 0;
+
+ pPixmapPriv -> splitResource = NULL;
+
+ pPixmapPriv -> isBackingPixmap = 0;
+
+ /*
+ * Create the pixmap based on the default
+ * windows. The proxy knows this and uses
+ * this information to optimize encode the
+ * create pixmap message by including the
+ * id of the drawable in the checksum.
+ */
+
+ if (width != 0 && height != 0 && nxagentGCTrap == 0)
+ {
+ pPixmapPriv -> id = XCreatePixmap(nxagentDisplay,
+ nxagentDefaultWindows[pScreen -> myNum],
+ width, height, depth);
+ }
+ else
+ {
+ pPixmapPriv -> id = 0;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentCreatePixmap: Skipping the creation of pixmap at [%p] on real "
+ "X server with nxagentGCTrap [%d].\n", (void *) pPixmap, nxagentGCTrap);
+ #endif
+ }
+
+ pPixmapPriv -> mid = FakeClientID(serverClient -> index);
+
+ AddResource(pPixmapPriv -> mid, RT_NX_PIXMAP, pPixmap);
+
+ pPixmapPriv -> pRealPixmap = pPixmap;
+ pPixmapPriv -> pVirtualPixmap = NULL;
+ pPixmapPriv -> pPicture = NULL;
+
+ /*
+ * Create the pixmap in the virtual framebuffer.
+ */
+
+ pVirtual = fbCreatePixmap(pScreen, width, height, depth);
+
+ if (pVirtual == NULL)
+ {
+ #ifdef PANIC
+ fprintf(stderr, "nxagentCreatePixmap: PANIC! Failed to create virtual pixmap with "
+ "width [%d] height [%d] depth [%d].\n", width, height, depth);
+ #endif
+
+ nxagentDestroyPixmap(pPixmap);
+
+ return NullPixmap;
+ }
+
+ #ifdef TEST
+ fprintf(stderr,"nxagentCreatePixmap: Allocated memory for the Virtual %sPixmap %p of real Pixmap %p (%dx%d)\n",
+ nxagentShmPixmapTrap ? "Shm " : "", (void *) pVirtual, (void *) pPixmap, width, height);
+ #endif
+
+ pPixmapPriv -> pVirtualPixmap = pVirtual;
+
+ /*
+ * Initialize the privates of the virtual picture. We
+ * could avoid to use a flag and just check the pointer
+ * to the virtual pixmap that, if the pixmap is actually
+ * virtual, will be NULL. Unfortunately the flag can be
+ * changed in nxagentValidateGC(). That code should be
+ * removed in future.
+ */
+
+ pVirtualPriv = nxagentPixmapPriv(pVirtual);
+
+ pVirtualPriv -> isVirtual = True;
+ pVirtualPriv -> isShared = nxagentShmPixmapTrap;
+
+ pVirtualPriv -> corruptedRegion = REGION_CREATE(pVirtual -> drawable.pScreen, (BoxRec *) NULL, 1);
+
+ pVirtualPriv -> corruptedBackground = 0;
+
+ pVirtualPriv -> containGlyphs = 0;
+ pVirtualPriv -> containTrapezoids = 0;
+
+ pVirtualPriv -> usageCounter = 0;
+
+ pVirtualPriv -> corruptedBackgroundId = 0;
+ pVirtualPriv -> corruptedId = 0;
+
+ pVirtualPriv -> synchronizationBitmap = NullPixmap;
+
+ pVirtualPriv -> corruptedTimestamp = 0;
+
+ pVirtualPriv -> splitResource = NULL;
+
+ /*
+ * We might distinguish real and virtual pixmaps by
+ * checking the pointers to pVirtualPixmap. We should
+ * also remove the copy of id and use the one of the
+ * real pixmap.
+ */
+
+ pVirtualPriv -> id = pPixmapPriv -> id;
+ pVirtualPriv -> mid = 0;
+
+ /*
+ * Storing a pointer back to the real pixmap is
+ * silly. Unfortunately this is the way it has
+ * been originally implemented. See also the
+ * comment in destroy of the pixmap.
+ */
+
+ pVirtualPriv -> pRealPixmap = pPixmap;
+ pVirtualPriv -> pVirtualPixmap = NULL;
+ pVirtualPriv -> pPicture = NULL;
+
+ /*
+ * Check that the virtual pixmap is created with
+ * the appropriate bits-per-plane, otherwise free
+ * everything and return.
+ */
+
+ if (pVirtual -> drawable.bitsPerPixel == 0)
+ {
+ #ifdef WARNING
+
+ fprintf(stderr, "nxagentCreatePixmap: WARNING! Virtual pixmap at [%p] has invalid "
+ "bits per pixel.\n", (void *) pVirtual);
+
+ fprintf(stderr, "nxagentCreatePixmap: WARNING! Real pixmap created with width [%d] "
+ "height [%d] depth [%d] bits per pixel [%d].\n", pPixmap -> drawable.width,
+ pPixmap -> drawable.height = height, pPixmap -> drawable.depth,
+ pPixmap -> drawable.bitsPerPixel);
+
+ #endif
+
+ if (!nxagentRenderTrap)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "Warning: Disabling render extension due to missing pixmap format.\n");
+ #endif
+
+ nxagentRenderTrap = 1;
+ }
+
+ nxagentDestroyPixmap(pPixmap);
+
+ return NullPixmap;
+ }
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentCreatePixmap: Created pixmap at [%p] virtual at [%p] with width [%d] "
+ "height [%d] depth [%d].\n", (void *) pPixmap, (void *) pVirtual,
+ width, height, depth);
+ #endif
+
+ return pPixmap;
+}
+
+Bool nxagentDestroyPixmap(PixmapPtr pPixmap)
+{
+ PixmapPtr pVirtual;
+
+ nxagentPrivPixmapPtr pPixmapPriv;
+
+ if (!pPixmap)
+ {
+ #ifdef PANIC
+ fprintf(stderr, "nxagentDestroyPixmap: PANIC! Invalid attempt to destroy "
+ "a null pixmap pointer.\n");
+ #endif
+
+ return False;
+ }
+
+ pPixmapPriv = nxagentPixmapPriv(pPixmap);
+
+ pVirtual = pPixmapPriv -> pVirtualPixmap;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentDestroyPixmap: Destroying pixmap at [%p] with virtual at [%p].\n",
+ (void *) pPixmap, (void *) pVirtual);
+ #endif
+
+ if (pPixmapPriv -> isVirtual)
+ {
+ int refcnt;
+
+ /*
+ * For some pixmaps we receive the destroy only for the
+ * virtual. Infact to draw in the framebuffer we can use
+ * the virtual pixmap instead of the pointer to the real
+ * one. As the virtual pixmap can collect references, we
+ * must transfer those references to the real pixmap so
+ * we can continue as the destroy had been requested for
+ * it.
+ */
+
+ pVirtual = pPixmap;
+ pPixmap = pPixmapPriv -> pRealPixmap;
+
+ pPixmapPriv = nxagentPixmapPriv(pPixmap);
+
+ /*
+ * Move the references accumulated by the virtual
+ * pixmap into the references of the real one.
+ */
+
+ refcnt = pVirtual -> refcnt - 1;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentDestroyPixmap: Adding [%d] references to pixmap at [%p].\n",
+ refcnt, (void *) pPixmap);
+ #endif
+
+ pPixmap -> refcnt += refcnt;
+
+ pVirtual -> refcnt -= refcnt;
+ }
+
+ --pPixmap -> refcnt;
+
+ #ifdef TEST
+
+ fprintf(stderr, "nxagentDestroyPixmap: Pixmap has now [%d] references with virtual pixmap [%d].\n",
+ pPixmap -> refcnt, pVirtual -> refcnt);
+
+ if (pVirtual != NULL && pVirtual -> refcnt != 1)
+ {
+ fprintf(stderr, "nxagentDestroyPixmap: PANIC! Virtual pixmap has [%d] references.\n",
+ pVirtual -> refcnt);
+ }
+
+ #endif
+
+ if (pPixmap -> refcnt > 0)
+ {
+ return True;
+ }
+
+ #ifdef TEST
+
+ fprintf(stderr, "nxagentDestroyPixmap: Managing to destroy the pixmap at [%p]\n",
+ (void *) pPixmap);
+ #endif
+
+ nxagentRemoveItemBSPixmapList(nxagentPixmap(pPixmap));
+
+ nxagentDestroyVirtualPixmap(pPixmap);
+
+ if (pPixmapPriv -> corruptedRegion != NullRegion)
+ {
+ REGION_DESTROY(pPixmap -> drawable.pScreen, pPixmapPriv -> corruptedRegion);
+
+ pPixmapPriv -> corruptedRegion = NullRegion;
+ }
+
+ if (nxagentSynchronization.pDrawable == (DrawablePtr) pPixmap)
+ {
+ nxagentSynchronization.pDrawable = NULL;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentDestroyPixmap: Synchronization drawable [%p] removed from resources.\n",
+ (void *) pPixmap);
+ #endif
+ }
+
+ nxagentDestroyCorruptedResource((DrawablePtr) pPixmap, RT_NX_CORR_BACKGROUND);
+
+ nxagentDestroyCorruptedResource((DrawablePtr) pPixmap, RT_NX_CORR_PIXMAP);
+
+ nxagentDestroyDrawableBitmap((DrawablePtr) pPixmap);
+
+ if (pPixmapPriv -> splitResource != NULL)
+ {
+ nxagentReleaseSplit((DrawablePtr) pPixmap);
+ }
+
+ /*
+ * A pixmap with width and height set to 0 is
+ * created at the beginning. To this pixmap is
+ * not assigned an id. This is likely a scratch
+ * pixmap used by the X server.
+ */
+
+ if (pPixmapPriv -> id)
+ {
+ XFreePixmap(nxagentDisplay, pPixmapPriv -> id);
+ }
+
+ if (pPixmapPriv -> mid)
+ {
+ FreeResource(pPixmapPriv -> mid, RT_NONE);
+ }
+
+ xfree(pPixmap);
+
+ return True;
+}
+
+Bool nxagentDestroyVirtualPixmap(PixmapPtr pPixmap)
+{
+ PixmapPtr pVirtual;
+ nxagentPrivPixmapPtr pVirtualPriv;
+
+ pVirtual = nxagentPixmapPriv(pPixmap) -> pVirtualPixmap;
+
+ /*
+ * Force the routine to get rid of the virtual
+ * pixmap.
+ */
+
+ if (pVirtual != NULL)
+ {
+ pVirtual -> refcnt = 1;
+
+ pVirtualPriv = nxagentPixmapPriv(pVirtual);
+
+ if (pVirtualPriv -> corruptedRegion != NullRegion)
+ {
+ REGION_DESTROY(pVirtual -> drawable.pScreen, pVirtualPriv -> corruptedRegion);
+
+ pVirtualPriv -> corruptedRegion = NullRegion;
+ }
+
+ fbDestroyPixmap(pVirtual);
+ }
+
+ return True;
+}
+
+RegionPtr nxagentPixmapToRegion(PixmapPtr pPixmap)
+{
+ #ifdef TEST
+ fprintf(stderr, "PixmapToRegion: Pixmap = [%p] nxagentVirtualPixmap = [%p]\n",
+ (void *) pPixmap, (void *) nxagentVirtualPixmap(pPixmap));
+ #endif
+
+ return fbPixmapToRegion(nxagentVirtualPixmap(pPixmap));
+}
+
+Bool nxagentModifyPixmapHeader(PixmapPtr pPixmap, int width, int height, int depth,
+ int bitsPerPixel, int devKind, pointer pPixData)
+{
+ PixmapPtr pVirtualPixmap;
+
+ /*
+ * See miModifyPixmapHeader() in miscrinit.c. This
+ * function is used to recycle the scratch pixmap
+ * for this screen. We let it refer to the virtual
+ * pixmap.
+ */
+
+ if (!pPixmap)
+ {
+ return False;
+ }
+
+ if (nxagentPixmapIsVirtual(pPixmap))
+ {
+ #ifdef PANIC
+ fprintf(stderr, "nxagentModifyPixmapHeader: PANIC! Pixmap at [%p] is virtual.\n",
+ (void *) pPixmap);
+ #endif
+
+ FatalError("nxagentModifyPixmapHeader: PANIC! Pixmap is virtual.");
+ }
+
+ pVirtualPixmap = nxagentVirtualPixmap(pPixmap);
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentModifyPixmapHeader: Pixmap at [%p] Virtual at [%p].\n",
+ (void *) pPixmap, (void *) pVirtualPixmap);
+
+ fprintf(stderr, "nxagentModifyPixmapHeader: Pixmap has width [%d] height [%d] depth [%d] "
+ "bits-per-pixel [%d] devKind [%d] pPixData [%p].\n", pPixmap->drawable.width,
+ pPixmap->drawable.height, pPixmap->drawable.depth, pPixmap->drawable.bitsPerPixel,
+ pPixmap->devKind, (void *) pPixmap->devPrivate.ptr);
+
+ fprintf(stderr, "nxagentModifyPixmapHeader: New parameters are width [%d] height [%d] depth [%d] "
+ "bits-per-pixel [%d] devKind [%d] pPixData [%p].\n", width, height, depth,
+ bitsPerPixel, devKind, (void *) pPixData);
+ #endif
+
+ if ((width > 0) && (height > 0) && (depth > 0) &&
+ (bitsPerPixel > 0) && (devKind > 0) && pPixData)
+ {
+ pPixmap->drawable.depth = depth;
+ pPixmap->drawable.bitsPerPixel = bitsPerPixel;
+ pPixmap->drawable.id = 0;
+ pPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pPixmap->drawable.x = 0;
+ pPixmap->drawable.y = 0;
+ pPixmap->drawable.width = width;
+ pPixmap->drawable.height = height;
+ pPixmap->devKind = devKind;
+ pPixmap->refcnt = 1;
+ pPixmap->devPrivate.ptr = pPixData;
+
+ pVirtualPixmap->drawable.depth = depth;
+ pVirtualPixmap->drawable.bitsPerPixel = bitsPerPixel;
+ pVirtualPixmap->drawable.id = 0;
+ pVirtualPixmap->drawable.serialNumber = NEXT_SERIAL_NUMBER;
+ pVirtualPixmap->drawable.x = 0;
+ pVirtualPixmap->drawable.y = 0;
+ pVirtualPixmap->drawable.width = width;
+ pVirtualPixmap->drawable.height = height;
+ pVirtualPixmap->devKind = devKind;
+ pVirtualPixmap->refcnt = 1;
+ pVirtualPixmap->devPrivate.ptr = pPixData;
+ }
+ else
+ {
+ if (width > 0)
+ pPixmap->drawable.width = width;
+
+ if (height > 0)
+ pPixmap->drawable.height = height;
+
+ if (depth > 0)
+ pPixmap->drawable.depth = depth;
+
+ if (bitsPerPixel > 0)
+ pPixmap->drawable.bitsPerPixel = bitsPerPixel;
+ else if ((bitsPerPixel < 0) && (depth > 0))
+ pPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
+
+ if (devKind > 0)
+ pPixmap->devKind = devKind;
+ else if ((devKind < 0) && ((width > 0) || (depth > 0)))
+ pPixmap->devKind = PixmapBytePad(pPixmap->drawable.width,
+ pPixmap->drawable.depth);
+
+ if (pPixData)
+ pPixmap->devPrivate.ptr = pPixData;
+
+ /*
+ * XXX This was the previous assignment:
+ *
+ * pVirtualPixmap->devPrivate.ptr = pPixData;
+ */
+
+ if (width > 0)
+ pVirtualPixmap->drawable.width = width;
+
+ if (height > 0)
+ pVirtualPixmap->drawable.height = height;
+
+ if (depth > 0)
+ pVirtualPixmap->drawable.depth = depth;
+
+ if (bitsPerPixel > 0)
+ pVirtualPixmap->drawable.bitsPerPixel = bitsPerPixel;
+ else if ((bitsPerPixel < 0) && (depth > 0))
+ pVirtualPixmap->drawable.bitsPerPixel = BitsPerPixel(depth);
+
+ if (devKind > 0)
+ pVirtualPixmap->devKind = devKind;
+ else if ((devKind < 0) && ((width > 0) || (depth > 0)))
+ pVirtualPixmap->devKind = PixmapBytePad(pVirtualPixmap->drawable.width,
+ pVirtualPixmap->drawable.depth);
+
+ if (pPixData)
+ pVirtualPixmap->devPrivate.ptr = pPixData;
+
+ #ifdef PANIC
+
+ if (pPixmap->drawable.x != 0 || pPixmap->drawable.y != 0)
+ {
+ fprintf(stderr, "nxagentModifyPixmapHeader: PANIC! Pixmap at [%p] has x [%d] and y [%d].\n",
+ (void *) pPixmap, pPixmap->drawable.x, pPixmap->drawable.y);
+
+ FatalError("nxagentModifyPixmapHeader: PANIC! Pixmap has x or y greater than zero.");
+ }
+
+ #endif
+ }
+
+ return True;
+}
+
+static void nxagentPixmapMatchID(void *p0, XID x1, void *p2)
+{
+ PixmapPtr pPixmap = (PixmapPtr)p0;
+ struct nxagentPixmapPair *pPair = p2;
+
+ if ((pPair -> pMap == NULL) && (nxagentPixmap(pPixmap) == pPair -> pixmap))
+ {
+ pPair -> pMap = pPixmap;
+ }
+}
+
+PixmapPtr nxagentPixmapPtr(Pixmap pixmap)
+{
+ int i;
+ struct nxagentPixmapPair pair;
+
+ if (pixmap == None)
+ {
+ return NULL;
+ }
+
+ pair.pixmap = pixmap;
+ pair.pMap = NULL;
+
+ FindClientResourcesByType(clients[serverClient -> index], RT_NX_PIXMAP,
+ nxagentPixmapMatchID, &pair);
+
+ for (i = 0; (pair.pMap == NULL) && (i < MAXCLIENTS); i++)
+ {
+ if (clients[i])
+ {
+ FindClientResourcesByType(clients[i], RT_PIXMAP,
+ nxagentPixmapMatchID, &pair);
+ }
+ }
+
+ #ifdef WARNING
+
+ if (pair.pMap == NULL)
+ {
+ fprintf(stderr, "nxagentFindPixmap: WARNING! Failed to find "
+ "remote pixmap [%ld].\n", (long int) pair.pixmap);
+ }
+ else if (nxagentDrawableStatus((DrawablePtr) pair.pMap) == NotSynchronized)
+ {
+ fprintf(stderr, "WARNING! Rootless icon at [%p] [%d,%d] is not synchronized.\n",
+ (void *) pair.pMap, pair.pMap -> drawable.width,
+ pair.pMap -> drawable.height);
+ }
+
+ #endif
+
+ return pair.pMap;
+}
+
+/*
+ * Reconnection stuff.
+ */
+
+int nxagentDestroyNewPixmapResourceType(pointer p, XID id)
+{
+ /*
+ * Address of the destructor is set in Init.c.
+ */
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentDestroyNewPixmapResourceType: Destroying mirror id [%ld] for pixmap at [%p].\n",
+ nxagentPixmapPriv((PixmapPtr) p) -> mid, (void *) p);
+ #endif
+
+ nxagentPixmapPriv((PixmapPtr) p) -> mid = None;
+
+ return True;
+}
+
+void nxagentDisconnectPixmap(void *p0, XID x1, void *p2)
+{
+ PixmapPtr pPixmap = (PixmapPtr) p0;
+
+ Bool *pBool;
+
+ pBool = (Bool*) p2;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentDisconnectPixmap: Called with bool [%d] and pixmap at [%p].\n",
+ *pBool, (void *) pPixmap);
+
+ fprintf(stderr, "nxagentDisconnectPixmap: Virtual pixmap is [%ld].\n",
+ nxagentPixmap(pPixmap));
+ #endif
+
+ nxagentPixmap(pPixmap) = None;
+
+ if (nxagentDrawableStatus((DrawablePtr) pPixmap) == NotSynchronized)
+ {
+ nxagentDestroyCorruptedResource((DrawablePtr) pPixmap, RT_NX_CORR_BACKGROUND);
+
+ nxagentDestroyCorruptedResource((DrawablePtr) pPixmap, RT_NX_CORR_PIXMAP);
+ }
+}
+
+Bool nxagentDisconnectAllPixmaps()
+{
+ int r = 1;
+ int i;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentDisconnectAllPixmaps: Going to iterate through pixmap resources.\n");
+ #endif
+
+ /*
+ * The RT_NX_PIXMAP resource type is allocated
+ * only on the server client, so we don't need
+ * to find it through the other clients too.
+ */
+
+ FindClientResourcesByType(clients[serverClient -> index], RT_NX_PIXMAP, nxagentDisconnectPixmap, &r);
+
+ #ifdef WARNING
+
+ if (r == 0)
+ {
+ fprintf(stderr, "nxagentDisconnectAllPixmaps: WARNING! Failed to disconnect "
+ "pixmap for client [%d].\n", serverClient -> index);
+ }
+
+ #endif
+
+ for (i = 0, r = 1; i < MAXCLIENTS; r = 1, i++)
+ {
+ if (clients[i])
+ {
+ #ifdef TEST
+ fprintf(stderr, "nxagentDisconnectAllPixmaps: Going to disconnect pixmaps of client [%d].\n", i);
+ #endif
+
+ FindClientResourcesByType(clients[i], RT_PIXMAP, nxagentDisconnectPixmap, &r);
+
+ #ifdef WARNING
+
+ if (r == 0)
+ {
+ fprintf(stderr, "nxagentDisconnectAllPixmaps: WARNING! Failed to disconnect "
+ "pixmap for client [%d].\n", i);
+ }
+
+ #endif
+ }
+ }
+
+ #ifdef WARNING
+
+ if (r == 0)
+ {
+ fprintf(stderr, "nxagentDisconnectAllPixmaps: WARNING! Failed to disconnect "
+ "pixmap for client [%d].\n", i);
+ }
+
+ #endif
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentDisconnectAllPixmaps: Pixmaps disconnection completed.\n");
+ #endif
+
+ return r;
+}
+
+void nxagentReconnectPixmap(void *p0, XID x1, void *p2)
+{
+ PixmapPtr pPixmap = (PixmapPtr) p0;
+ Bool *pBool = (Bool*) p2;
+ nxagentPrivPixmapPtr pPixmapPriv;
+
+ if (*pBool == 0 || pPixmap == NULL ||
+ NXDisplayError(nxagentDisplay) == 1)
+ {
+ *pBool = 0;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentReconnectPixmap: Ignoring pixmap at [%p] while "
+ "recovering from the error.\n", (void *) pPixmap);
+ #endif
+
+ return;
+ }
+ else if (pPixmap == nxagentDefaultScreen -> pScratchPixmap)
+ {
+ /*
+ * Every time the scratch pixmap is used its
+ * data is changed, so we don't need to recon-
+ * nect it.
+ */
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentReconnectPixmap: Ignoring scratch pixmap at [%p].\n",
+ (void *) pPixmap);
+ #endif
+
+ return;
+ }
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentReconnectPixmap: Called with result [%d] and pixmap at [%p].\n",
+ *pBool, (void *) pPixmap);
+
+ fprintf(stderr, "nxagentReconnectPixmap: Virtual pixmap is at [%p] picture is at [%p].\n",
+ (void *) nxagentPixmapPriv(pPixmap) -> pVirtualPixmap,
+ (void *) nxagentPixmapPriv(pPixmap) -> pPicture);
+ #endif
+
+ pPixmapPriv = nxagentPixmapPriv(pPixmap);
+
+ if (pPixmap -> drawable.width && pPixmap -> drawable.height)
+ {
+ pPixmapPriv -> id = XCreatePixmap(nxagentDisplay,
+ nxagentDefaultWindows[pPixmap -> drawable.pScreen -> myNum],
+ pPixmap -> drawable.width,
+ pPixmap -> drawable.height,
+ pPixmap -> drawable.depth);
+
+ nxagentPixmap(pPixmapPriv -> pVirtualPixmap) = pPixmapPriv -> id;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentReconnectPixmap: Created virtual pixmap with id [%ld] for pixmap at [%p].\n",
+ nxagentPixmap(pPixmap), (void *) pPixmap);
+ #endif
+
+ if (pPixmap == (PixmapPtr) nxagentDefaultScreen -> devPrivate)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentReconnectPixmap: WARNING! Pixmap is root screen. Returning.\n");
+ #endif
+
+ return;
+ }
+
+ nxagentSplitTrap = 1;
+
+ *pBool = nxagentSynchronizeDrawableData((DrawablePtr) pPixmap, NEVER_BREAK, NULL);
+
+ nxagentSplitTrap = 0;
+
+ if (*pBool == 0)
+ {
+ #ifdef PANIC
+ fprintf(stderr, "nxagentReconnectPixmap: PANIC! Failed to synchronize the pixmap.\n");
+ #endif
+ }
+
+
+ if (nxagentDrawableStatus((DrawablePtr) pPixmap) == NotSynchronized)
+ {
+ if (nxagentIsCorruptedBackground(pPixmap) == 1)
+ {
+ nxagentAllocateCorruptedResource((DrawablePtr) pPixmap, RT_NX_CORR_BACKGROUND);
+
+ nxagentFillRemoteRegion((DrawablePtr) pPixmap,
+ nxagentCorruptedRegion((DrawablePtr) pPixmap));
+ }
+ else
+ {
+ nxagentAllocateCorruptedResource((DrawablePtr) pPixmap, RT_NX_CORR_PIXMAP);
+ }
+ }
+ }
+}
+
+Bool nxagentReconnectAllPixmaps(void *p0)
+{
+ Bool result = 1;
+
+ int i;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentReconnectAllPixmaps: Going to recreate all pixmaps.\n");
+ #endif
+
+ /*
+ * Reset the geometry and alpha information
+ * used by proxy to unpack the packed images.
+ */
+
+ nxagentResetVisualCache();
+
+ nxagentResetAlphaCache();
+
+ /*
+ * The RT_NX_PIXMAP resource type is allocated
+ * only on the server client, so we don't need
+ * to find it through the other clients too.
+ */
+
+ FindClientResourcesByType(clients[serverClient -> index], RT_NX_PIXMAP, nxagentReconnectPixmap, &result);
+
+ #ifdef WARNING
+
+ if (result == 0)
+ {
+ fprintf(stderr, "nxagentReconnectAllPixmaps: WARNING! Failed to reconnect "
+ "pixmap for client [%d].\n", serverClient -> index);
+ }
+
+ #endif
+
+ for (i = 0, result = 1; i < MAXCLIENTS; result = 1, i++)
+ {
+ if (clients[i] != NULL)
+ {
+ #ifdef TEST
+ fprintf(stderr, "nxagentReconnectAllPixmaps: Going to reconnect pixmaps of client [%d].\n", i);
+ #endif
+
+ /*
+ * Let the pixmap be reconnected as it was an
+ * image request issued by the client owning
+ * the resource. The client index is used as
+ * a subscript by the image routines to cache
+ * the data per-client.
+ */
+
+ FindClientResourcesByType(clients[i], RT_PIXMAP, nxagentReconnectPixmap, &result);
+
+ #ifdef WARNING
+
+ if (result == 0)
+ {
+ fprintf(stderr, "nxagentReconnectAllPixmaps: WARNING! Failed to reconnect "
+ "pixmap for client [%d].\n", serverClient -> index);
+ }
+
+ #endif
+ }
+ }
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentReconnectAllPixmaps: Pixmaps reconnection completed.\n");
+ #endif
+
+ return result;
+}
+
+#ifdef TEST
+
+static void nxagentCheckOnePixmapIntegrity(void *p0, XID x1, void *p2)
+{
+ PixmapPtr pPixmap = (PixmapPtr) p0;
+ Bool *pBool = (Bool*) p2;
+
+ if (*pBool == False)
+ {
+ return;
+ }
+
+ if (pPixmap == nxagentDefaultScreen -> devPrivate)
+ {
+ #ifdef TEST
+ fprintf(stderr, "nxagentCheckOnePixmapIntegrity: pixmap %p is screen.\n",
+ (void *) pPixmap);
+ #endif
+
+ return;
+ }
+
+ if (pPixmap == nxagentDefaultScreen -> PixmapPerDepth[0])
+ {
+ #ifdef TEST
+ fprintf(stderr, "nxagentCheckOnePixmapIntegrity: pixmap %p is default stipple of screen.\n",
+ (void *) pPixmap);
+ #endif
+
+ return;
+ }
+
+ *pBool = nxagentCheckPixmapIntegrity(pPixmap);
+}
+
+Bool nxagentCheckPixmapIntegrity(PixmapPtr pPixmap)
+{
+ Bool integrity = 1;
+ XImage *image;
+ char *data;
+ int format;
+ unsigned long plane_mask = AllPlanes;
+ unsigned int width, height, length, depth;
+ PixmapPtr pVirtual = nxagentVirtualPixmap(pPixmap);
+
+ width = pPixmap -> drawable.width;
+ height = pPixmap -> drawable.height;
+ depth = pPixmap -> drawable.depth;
+ format = (depth == 1) ? XYPixmap : ZPixmap;
+
+ if (width && height)
+ {
+ length = nxagentImageLength(width, height, format, 0, depth);
+
+ data = malloc(length);
+
+ if (data == NULL)
+ {
+ FatalError("nxagentCheckPixmapIntegrity: Failed to allocate a buffer of size %d.\n", length);
+ }
+
+ image = XGetImage(nxagentDisplay, nxagentPixmap(pPixmap), 0, 0,
+ width, height, plane_mask, format);
+ if (image == NULL)
+ {
+ FatalError("XGetImage: Failed.\n");
+
+ free(data);
+
+ return False;
+ }
+
+ #ifdef WARNING
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Image from X has length [%d] and checksum [0x%s].\n",
+ length, nxagentChecksum(image->data, length));
+ #endif
+
+ NXCleanImage(image);
+
+ #ifdef WARNING
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Image after clean has checksum [0x%s].\n",
+ nxagentChecksum(image->data, length));
+ #endif
+
+ fbGetImage((DrawablePtr) pVirtual, 0, 0, width, height, format, plane_mask, data);
+
+ #ifdef WARNING
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Image from FB has length [%d] and checksum [0x%s].\n",
+ length, nxagentChecksum(data, length));
+ #endif
+
+ if (image != NULL && memcmp(image -> data, data, length) != 0)
+ {
+ integrity = 0;
+ }
+ else
+ {
+ integrity = 1;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Pixmap at [%p] has been realized. "
+ "Now remote and frambuffer data are synchronized.\n", (void *) pPixmap);
+ #endif
+ }
+
+ #ifdef WARNING
+
+ if (integrity == 0)
+ {
+
+ int i;
+ char *p, *q;
+
+ for (i = 0, p = image -> data, q = data; i < length; i++)
+ {
+ if (p[i] != q[i])
+ {
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Byte [%d] image -> data [%d] data [%d]. "
+ "Buffers differ!\n", i, p[i], q[i]);
+ }
+ else
+ {
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Byte [%d] image -> data [%d] data [%d].\n",
+ i, p[i], q[i]);
+ }
+ }
+
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Pixmap at [%p] width [%d], height [%d], has been realized "
+ "but the data buffer still differs.\n", (void *) pPixmap, width, height);
+
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: bytes_per_line [%d] byte pad [%d] format [%d].\n",
+ image -> bytes_per_line, nxagentImagePad(width, height, 0, depth), image -> format);
+
+ FatalError("nxagentCheckPixmapIntegrity: Image is corrupted!!\n");
+
+ }
+
+ #endif
+
+ if (image != NULL)
+ {
+ XDestroyImage(image);
+ }
+
+ if (data != NULL)
+ {
+ free(data);
+ }
+ }
+ else
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentCheckPixmapIntegrity: Ignored pixmap at [%p] with geometry [%d] [%d].\n",
+ (void *) pPixmap, width, height);
+ #endif
+ }
+
+ return integrity;
+}
+
+Bool nxagentCheckAllPixmapIntegrity()
+{
+ int i;
+ Bool imageIsGood = True;
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentCheckAllPixmapIntegrity\n");
+ #endif
+
+ FindClientResourcesByType(clients[serverClient -> index], RT_NX_PIXMAP,
+ nxagentCheckOnePixmapIntegrity, &imageIsGood);
+
+ for (i = 0; (i < MAXCLIENTS) && (imageIsGood); i++)
+ {
+ if (clients[i])
+ {
+ FindClientResourcesByType(clients[i], RT_PIXMAP,
+ nxagentCheckOnePixmapIntegrity, &imageIsGood);
+
+ }
+ }
+
+ #ifdef TEST
+ fprintf(stderr, "nxagentCheckAllPixmapIntegrity: pixmaps integrity = %d.\n", imageIsGood);
+ #endif
+
+ return imageIsGood;
+}
+
+#endif
+
+void nxagentSynchronizeShmPixmap(DrawablePtr pDrawable, int xPict, int yPict,
+ int wPict, int hPict)
+{
+ GCPtr pGC;
+ char *data;
+ int width, height;
+ int depth, length, format;
+ CARD32 attributes[3];
+
+ int saveTrap;
+
+ if (pDrawable -> type == DRAWABLE_PIXMAP &&
+ nxagentIsShmPixmap((PixmapPtr) pDrawable) == 1)
+ {
+ #ifdef TEST
+ fprintf(stderr, "nxagentSynchronizeShmPixmap: WARNING! Synchronizing shared pixmap at [%p].\n",
+ (void *) pDrawable);
+ #endif
+
+ pGC = nxagentGetScratchGC(pDrawable -> depth, pDrawable -> pScreen);
+
+ attributes[0] = 0x228b22;
+ attributes[1] = 0xffffff;
+ attributes[2] = FillSolid;
+
+ ChangeGC(pGC, GCForeground | GCBackground | GCFillStyle, attributes);
+
+ ValidateGC(pDrawable, pGC);
+
+ width = (wPict != 0 && wPict <= pDrawable -> width) ? wPict : pDrawable -> width;
+ height = (hPict != 0 && hPict <= pDrawable -> height) ? hPict : pDrawable -> height;
+
+ depth = pDrawable -> depth;
+
+ format = (depth == 1) ? XYPixmap : ZPixmap;
+
+ length = nxagentImageLength(width, height, format, 0, depth);
+
+ saveTrap = nxagentGCTrap;
+
+ nxagentGCTrap = 0;
+
+ nxagentSplitTrap = 1;
+
+ nxagentFBTrap = 1;
+
+ if ((data = xalloc(length)) != NULL)
+ {
+ fbGetImage(nxagentVirtualDrawable(pDrawable), xPict, yPict,
+ width, height, format, 0xffffffff, data);
+
+ nxagentPutImage(pDrawable, pGC, depth, xPict, yPict,
+ width, height, 0, format, data);
+
+ xfree(data);
+ }
+ #ifdef WARNING
+ else
+ {
+ fprintf(stderr, "nxagentSynchronizeShmPixmap: WARNING! Failed to allocate memory for the operation.\n");
+ }
+ #endif
+
+ nxagentGCTrap = saveTrap;
+
+ nxagentSplitTrap = 0;
+
+ nxagentFBTrap = 0;
+
+ nxagentFreeScratchGC(pGC);
+ }
+}
+
+#ifdef DUMP
+
+/*
+ * This function is useful to visualize a pixmap and check
+ * its data consistency. To avoid the creation of many
+ * windows, one pixmap only can be monitored at a time.
+ */
+
+Bool nxagentPixmapOnShadowDisplay(PixmapPtr pMap)
+{
+ static Display *shadow;
+ static Window win;
+ static int init = True;
+ static int showTime;
+ static PixmapPtr pPixmap;
+ static int depth;
+ static int width;
+ static int height;
+ static int length;
+ static unsigned int format;
+
+ XlibGC gc;
+ XGCValues value;
+ XImage *image;
+ Visual *pVisual;
+ char *data = NULL;
+
+
+ if (init)
+ {
+ if (pMap == NULL)
+ {
+ return False;
+ }
+ else
+ {
+ pPixmap = pMap;
+ }
+
+ depth = pPixmap -> drawable.depth;
+ width = pPixmap -> drawable.width;
+ height = pPixmap -> drawable.height;
+ format = (depth == 1) ? XYPixmap : ZPixmap;
+
+ shadow = XOpenDisplay("localhost:0");
+
+ if (shadow == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentPixmapOnShadowDisplay: WARNING! Shadow display not opened.\n");
+ #endif
+
+ return False;
+ }
+
+ init = False;
+
+ win = XCreateSimpleWindow(shadow, DefaultRootWindow(shadow), 0, 0,
+ width, height, 0, 0xFFCC33, 0xFF);
+
+ XMapWindow(shadow, win);
+ XClearWindow(shadow, win);
+ }
+
+/*
+FIXME: If the pixmap has a different depth from the window, the
+ XPutImage returns a BadMatch. For example this may happens if
+ the Render extension is enabled.
+ Can we fix this creating a new pixmap?
+*/
+
+ if (DisplayPlanes(shadow, DefaultScreen(shadow)) != depth)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentPixmapOnShadowDisplay: Pixmap and Window depths [%d - %d] are not equals!\n",
+ depth, DisplayPlanes(shadow, DefaultScreen(shadow)));
+ #endif
+
+ return False;
+ }
+
+ /*
+ * If the framebuffer is updated continuously, the nxagent
+ * visualization become too much slow.
+ */
+
+ if ((GetTimeInMillis() - showTime) < 500)
+ {
+ return False;
+ }
+
+ showTime = GetTimeInMillis();
+
+ length = nxagentImageLength(width, height, format, 0, depth);
+
+ if ((data = xalloc(length)) == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentPixmapOnShadowDisplay: WARNING! Failed to allocate memory for the operation.\n");
+ #endif
+
+ return False;
+ }
+
+ fbGetImage((DrawablePtr) nxagentVirtualPixmap(pPixmap), 0, 0,
+ width, height, format, AllPlanes, data);
+
+ pVisual = nxagentImageVisual((DrawablePtr) pPixmap, depth);
+
+ if (pVisual == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentPixmapOnShadowDisplay: WARNING! Visual not found. Using default visual.\n");
+ #endif
+
+ pVisual = nxagentVisuals[nxagentDefaultVisualIndex].visual;
+ }
+
+ image = XCreateImage(nxagentDisplay, pVisual,
+ depth, format, 0, (char *) data,
+ width, height, BitmapPad(nxagentDisplay),
+ nxagentImagePad(width, format, 0, depth));
+
+ if (image == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentPixmapOnShadowDisplay: XCreateImage failed.\n");
+ #endif
+
+ if (data != NULL)
+ {
+ xfree(data);
+ }
+
+ return False;
+ }
+
+ value.foreground = 0xff0000;
+ value.background = 0x000000;
+ value.plane_mask = 0xffffff;
+ value.fill_style = FillSolid;
+
+ gc = XCreateGC(shadow, win, GCBackground |
+ GCForeground | GCFillStyle | GCPlaneMask, &value);
+
+ NXCleanImage(image);
+
+ XPutImage(shadow, win, gc, image, 0, 0, 0, 0, width, height);
+
+ XFreeGC(shadow, gc);
+
+ if (image != NULL)
+ {
+ XDestroyImage(image);
+ }
+
+ return True;
+}
+
+Bool nxagentFbOnShadowDisplay()
+{
+ static Display *shadow;
+ static Window win;
+ static int init = True;
+ static int showTime;
+ static int prevWidth, prevHeight;
+
+ XlibGC gc;
+ XGCValues value;
+ XImage *image;
+ Visual *pVisual;
+ WindowPtr pWin = WindowTable[0];
+ unsigned int format;
+ int depth, width, height, length;
+ char *data = NULL;
+
+
+ if (pWin == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentFbOnShadowDisplay: The parent window is NULL.\n");
+ #endif
+
+ return False;
+ }
+
+ depth = pWin -> drawable.depth;
+ width = pWin -> drawable.width;
+ height = pWin -> drawable.height;
+ format = (depth == 1) ? XYPixmap : ZPixmap;
+
+ if (init)
+ {
+ shadow = XOpenDisplay("localhost:0");
+
+ if (shadow == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentFbOnShadowDisplay: WARNING! Shadow display not opened.\n");
+ #endif
+
+ return False;
+ }
+
+ init = False;
+
+ prevWidth = width;
+ prevHeight = height;
+
+ win = XCreateSimpleWindow(shadow, DefaultRootWindow(shadow), 0, 0,
+ width, height, 0, 0xFFCC33, 0xFF);
+
+ XMapWindow(shadow, win);
+ XClearWindow(shadow, win);
+ }
+
+ if (DisplayPlanes(shadow, DefaultScreen(shadow)) != depth)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentFbOnShadowDisplay: Depths [%d - %d] are not equals!\n",
+ depth, DisplayPlanes(shadow, DefaultScreen(shadow)));
+ #endif
+
+ return False;
+ }
+
+ /*
+ * If the framebuffer is updated continuously, the nxagent
+ * visualization becomes too much slow.
+ */
+
+ if ((GetTimeInMillis() - showTime) < 500)
+ {
+ return False;
+ }
+
+ showTime = GetTimeInMillis();
+
+ /*
+ * If the root window is resized, also the window on shadow
+ * display must be resized.
+ */
+
+ if (prevWidth != width || prevHeight != height)
+ {
+ XWindowChanges values;
+
+ prevWidth = width;
+ prevHeight = height;
+
+ values.width = width;
+ values.height = height;
+ XConfigureWindow(shadow, win, CWWidth | CWHeight, &values);
+ }
+
+ length = nxagentImageLength(width, height, format, 0, depth);
+
+ if ((data = xalloc(length)) == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentFbOnShadowDisplay: WARNING! Failed to allocate memory for the operation.\n");
+ #endif
+
+ return False;
+ }
+
+ fbGetImage((DrawablePtr)pWin, 0, 0,
+ width, height, format, AllPlanes, data);
+
+ pVisual = nxagentImageVisual((DrawablePtr) pWin, depth);
+
+ if (pVisual == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentFbOnShadowDisplay: WARNING! Visual not found. Using default visual.\n");
+ #endif
+
+ pVisual = nxagentVisuals[nxagentDefaultVisualIndex].visual;
+ }
+
+ image = XCreateImage(nxagentDisplay, pVisual,
+ depth, format, 0, (char *) data,
+ width, height, BitmapPad(nxagentDisplay),
+ nxagentImagePad(width, format, 0, depth));
+
+ if (image == NULL)
+ {
+ #ifdef WARNING
+ fprintf(stderr, "nxagentFbOnShadowDisplay: XCreateImage failed.\n");
+ #endif
+
+ if (data)
+ {
+ xfree(data);
+ }
+
+ return False;
+ }
+
+ value.foreground = 0xff0000;
+ value.background = 0x000000;
+ value.plane_mask = 0xffffff;
+ value.fill_style = FillSolid;
+
+ gc = XCreateGC(shadow, win, GCBackground |
+ GCForeground | GCFillStyle | GCPlaneMask, &value);
+
+ NXCleanImage(image);
+
+ XPutImage(shadow, win, gc, image, 0, 0, 0, 0, width, height);
+
+ XFreeGC(shadow, gc);
+
+ if (image != NULL)
+ {
+ XDestroyImage(image);
+ }
+
+ return True;
+}
+
+#endif
+
+#ifdef DEBUG
+
+void nxagentPrintResourceTypes()
+{
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_PIXMAP [%lu].\n", (unsigned long) RT_PIXMAP);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_NX_PIXMAP [%lu].\n", (unsigned long) RT_NX_PIXMAP);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_GC [%lu].\n", (unsigned long) RT_GC);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_NX_GC [%lu].\n", (unsigned long) RT_NX_GC);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_FONT [%lu].\n", (unsigned long) RT_FONT);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_NX_FONT [%lu].\n", (unsigned long) RT_NX_FONT);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_CURSOR [%lu].\n", (unsigned long) RT_CURSOR);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_WINDOW [%lu].\n", (unsigned long) RT_WINDOW);
+ fprintf(stderr, "nxagentPrintResourceTypes: RT_COLORMAP [%lu].\n", (unsigned long) RT_COLORMAP);
+}
+
+void nxagentPrintResourcePredicate(void *value, XID id, XID type, void *cdata)
+{
+ fprintf(stderr, "nxagentPrintResourcePredicate: Resource [%p] id [%lu] type [%lu].\n",
+ (void *) value, (unsigned long) id, (unsigned long) type);
+}
+
+void nxagentPrintResources()
+{
+ Bool result;
+ int i;
+
+ nxagentPrintResourceTypes();
+
+ for (i = 0; i < MAXCLIENTS; i++)
+ {
+ if (clients[i])
+ {
+ fprintf(stderr, "nxagentPrintResources: Printing resources for client [%d]:\n",
+ i);
+
+ FindAllClientResources(clients[i], nxagentPrintResourcePredicate, &result);
+ }
+ }
+}
+
+#endif
+
+