--- /dev/null
+/*
+ * Minimal implementation of PanoramiX/Xinerama
+ *
+ * This is used in rootless mode where the underlying window server
+ * already provides an abstracted view of multiple screens as one
+ * large screen area.
+ *
+ * This code is largely based on panoramiX.c, which contains the
+ * following copyright notice:
+ */
+/*****************************************************************
+Copyright (c) 1991, 1997 Digital Equipment Corporation, Maynard, Massachusetts.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+DIGITAL EQUIPMENT CORPORATION BE LIABLE FOR ANY CLAIM, DAMAGES, INCLUDING,
+BUT NOT LIMITED TO CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
+IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of Digital Equipment Corporation
+shall not be used in advertising or otherwise to promote the sale, use or other
+dealings in this Software without prior written authorization from Digital
+Equipment Corporation.
+******************************************************************/
+/* $XFree86: xc/programs/Xserver/hw/darwin/quartz/pseudoramiX.c,v 1.1 2002/03/28 02:21:18 torrey Exp $ */
+
+#include "pseudoramiX.h"
+
+#include "extnsionst.h"
+#include "dixstruct.h"
+#include "window.h"
+#include "panoramiXproto.h"
+#include "globals.h"
+
+extern int ProcPanoramiXQueryVersion (ClientPtr client);
+
+static void PseudoramiXResetProc(ExtensionEntry *extEntry);
+
+static int ProcPseudoramiXQueryVersion(ClientPtr client);
+static int ProcPseudoramiXGetState(ClientPtr client);
+static int ProcPseudoramiXGetScreenCount(ClientPtr client);
+static int ProcPseudoramiXGetScreenSize(ClientPtr client);
+static int ProcPseudoramiXIsActive(ClientPtr client);
+static int ProcPseudoramiXQueryScreens(ClientPtr client);
+static int ProcPseudoramiXDispatch(ClientPtr client);
+
+static int SProcPseudoramiXQueryVersion(ClientPtr client);
+static int SProcPseudoramiXGetState(ClientPtr client);
+static int SProcPseudoramiXGetScreenCount(ClientPtr client);
+static int SProcPseudoramiXGetScreenSize(ClientPtr client);
+static int SProcPseudoramiXIsActive(ClientPtr client);
+static int SProcPseudoramiXQueryScreens(ClientPtr client);
+static int SProcPseudoramiXDispatch(ClientPtr client);
+
+
+typedef struct {
+ int x;
+ int y;
+ int w;
+ int h;
+} PseudoramiXScreenRec;
+
+static PseudoramiXScreenRec *pseudoramiXScreens = NULL;
+static int pseudoramiXScreensAllocated = 0;
+static int pseudoramiXNumScreens = 0;
+static int pseudoramiXGeneration = -1;
+
+
+// Add a PseudoramiX screen.
+// The rest of the X server will know nothing about this screen.
+// Can be called before or after extension init.
+// Screens must be re-added once per generation.
+void
+PseudoramiXAddScreen(int x, int y, int w, int h)
+{
+ PseudoramiXScreenRec *s;
+
+ if (noPseudoramiXExtension) return;
+
+ if (pseudoramiXNumScreens == pseudoramiXScreensAllocated) {
+ pseudoramiXScreensAllocated += pseudoramiXScreensAllocated + 1;
+ pseudoramiXScreens = xrealloc(pseudoramiXScreens,
+ pseudoramiXScreensAllocated *
+ sizeof(PseudoramiXScreenRec));
+ }
+
+ s = &pseudoramiXScreens[pseudoramiXNumScreens++];
+ s->x = x;
+ s->y = y;
+ s->w = w;
+ s->h = h;
+}
+
+
+// Initialize PseudoramiX.
+// Copied from PanoramiXExtensionInit
+void PseudoramiXExtensionInit(int argc, char *argv[])
+{
+ Bool success = FALSE;
+ ExtensionEntry *extEntry;
+
+ if (noPseudoramiXExtension) return;
+
+#if 0
+ if (pseudoramiXNumScreens == 1) {
+ // Only one screen - disable Xinerama extension.
+ noPseudoramiXExtension = TRUE;
+ return;
+ }
+#endif
+
+ // The server must not run the PanoramiX operations.
+ noPanoramiXExtension = TRUE;
+
+ if (pseudoramiXGeneration != serverGeneration) {
+ extEntry = AddExtension(PANORAMIX_PROTOCOL_NAME, 0, 0,
+ ProcPseudoramiXDispatch,
+ SProcPseudoramiXDispatch,
+ PseudoramiXResetProc,
+ StandardMinorOpcode);
+ if (!extEntry) {
+ ErrorF("PseudoramiXExtensionInit(): AddExtension failed\n");
+ } else {
+ pseudoramiXGeneration = serverGeneration;
+ success = TRUE;
+ }
+ }
+
+ if (!success) {
+ ErrorF("%s Extension (PseudoramiX) failed to initialize\n",
+ PANORAMIX_PROTOCOL_NAME);
+ return;
+ }
+}
+
+
+static void PseudoramiXResetProc(ExtensionEntry *extEntry)
+{
+ pseudoramiXNumScreens = 0;
+}
+
+void PseudoramiXResetScreens (void)
+{
+ pseudoramiXNumScreens = 0;
+}
+
+// was PanoramiX
+static int ProcPseudoramiXQueryVersion(ClientPtr client)
+{
+ return ProcPanoramiXQueryVersion(client);
+}
+
+
+// was PanoramiX
+static int ProcPseudoramiXGetState(ClientPtr client)
+{
+ REQUEST(xPanoramiXGetStateReq);
+ WindowPtr pWin;
+ xPanoramiXGetStateReply rep;
+ register int n;
+
+ REQUEST_SIZE_MATCH(xPanoramiXGetStateReq);
+ pWin = LookupWindow (stuff->window, client);
+ if (!pWin)
+ return BadWindow;
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.state = !noPseudoramiXExtension;
+ if (client->swapped) {
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ swaps (&rep.state, n);
+ }
+ WriteToClient (client, sizeof (xPanoramiXGetStateReply), (char *) &rep);
+ return client->noClientException;
+}
+
+
+// was PanoramiX
+static int ProcPseudoramiXGetScreenCount(ClientPtr client)
+{
+ REQUEST(xPanoramiXGetScreenCountReq);
+ WindowPtr pWin;
+ xPanoramiXGetScreenCountReply rep;
+ register int n;
+
+ REQUEST_SIZE_MATCH(xPanoramiXGetScreenCountReq);
+ pWin = LookupWindow (stuff->window, client);
+ if (!pWin)
+ return BadWindow;
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.ScreenCount = pseudoramiXNumScreens;
+ if (client->swapped) {
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ swaps (&rep.ScreenCount, n);
+ }
+ WriteToClient (client, sizeof(xPanoramiXGetScreenCountReply), (char *)&rep);
+ return client->noClientException;
+}
+
+
+// was PanoramiX
+static int ProcPseudoramiXGetScreenSize(ClientPtr client)
+{
+ REQUEST(xPanoramiXGetScreenSizeReq);
+ WindowPtr pWin;
+ xPanoramiXGetScreenSizeReply rep;
+ register int n;
+
+ REQUEST_SIZE_MATCH(xPanoramiXGetScreenSizeReq);
+ pWin = LookupWindow (stuff->window, client);
+ if (!pWin)
+ return BadWindow;
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ /* screen dimensions */
+ rep.width = pseudoramiXScreens[stuff->screen].w;
+ // was panoramiXdataPtr[stuff->screen].width;
+ rep.height = pseudoramiXScreens[stuff->screen].h;
+ // was panoramiXdataPtr[stuff->screen].height;
+ if (client->swapped) {
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ swaps (&rep.width, n);
+ swaps (&rep.height, n);
+ }
+ WriteToClient (client, sizeof(xPanoramiXGetScreenSizeReply), (char *)&rep);
+ return client->noClientException;
+}
+
+
+// was Xinerama
+static int ProcPseudoramiXIsActive(ClientPtr client)
+{
+ /* REQUEST(xXineramaIsActiveReq); */
+ xXineramaIsActiveReply rep;
+
+ REQUEST_SIZE_MATCH(xXineramaIsActiveReq);
+
+ rep.type = X_Reply;
+ rep.length = 0;
+ rep.sequenceNumber = client->sequence;
+ rep.state = !noPseudoramiXExtension;
+ if (client->swapped) {
+ register int n;
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ swapl (&rep.state, n);
+ }
+ WriteToClient (client, sizeof (xXineramaIsActiveReply), (char *) &rep);
+ return client->noClientException;
+}
+
+
+// was Xinerama
+static int ProcPseudoramiXQueryScreens(ClientPtr client)
+{
+ /* REQUEST(xXineramaQueryScreensReq); */
+ xXineramaQueryScreensReply rep;
+
+ REQUEST_SIZE_MATCH(xXineramaQueryScreensReq);
+
+ rep.type = X_Reply;
+ rep.sequenceNumber = client->sequence;
+ rep.number = noPseudoramiXExtension ? 0 : pseudoramiXNumScreens;
+ rep.length = rep.number * sz_XineramaScreenInfo >> 2;
+ if (client->swapped) {
+ register int n;
+ swaps (&rep.sequenceNumber, n);
+ swapl (&rep.length, n);
+ swapl (&rep.number, n);
+ }
+ WriteToClient (client, sizeof (xXineramaQueryScreensReply), (char *) &rep);
+
+ if (!noPseudoramiXExtension) {
+ xXineramaScreenInfo scratch;
+ int i;
+
+ for(i = 0; i < pseudoramiXNumScreens; i++) {
+ scratch.x_org = pseudoramiXScreens[i].x;
+ scratch.y_org = pseudoramiXScreens[i].y;
+ scratch.width = pseudoramiXScreens[i].w;
+ scratch.height = pseudoramiXScreens[i].h;
+
+ if(client->swapped) {
+ register int n;
+ swaps (&scratch.x_org, n);
+ swaps (&scratch.y_org, n);
+ swaps (&scratch.width, n);
+ swaps (&scratch.height, n);
+ }
+ WriteToClient (client, sz_XineramaScreenInfo, (char *) &scratch);
+ }
+ }
+
+ return client->noClientException;
+}
+
+
+// was PanoramiX
+static int ProcPseudoramiXDispatch (ClientPtr client)
+{ REQUEST(xReq);
+ switch (stuff->data)
+ {
+ case X_PanoramiXQueryVersion:
+ return ProcPseudoramiXQueryVersion(client);
+ case X_PanoramiXGetState:
+ return ProcPseudoramiXGetState(client);
+ case X_PanoramiXGetScreenCount:
+ return ProcPseudoramiXGetScreenCount(client);
+ case X_PanoramiXGetScreenSize:
+ return ProcPseudoramiXGetScreenSize(client);
+ case X_XineramaIsActive:
+ return ProcPseudoramiXIsActive(client);
+ case X_XineramaQueryScreens:
+ return ProcPseudoramiXQueryScreens(client);
+ }
+ return BadRequest;
+}
+
+
+
+static int
+SProcPseudoramiXQueryVersion (ClientPtr client)
+{
+ REQUEST(xPanoramiXQueryVersionReq);
+ register int n;
+
+ swaps(&stuff->length,n);
+ REQUEST_SIZE_MATCH (xPanoramiXQueryVersionReq);
+ return ProcPseudoramiXQueryVersion(client);
+}
+
+static int
+SProcPseudoramiXGetState(ClientPtr client)
+{
+ REQUEST(xPanoramiXGetStateReq);
+ register int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xPanoramiXGetStateReq);
+ return ProcPseudoramiXGetState(client);
+}
+
+static int
+SProcPseudoramiXGetScreenCount(ClientPtr client)
+{
+ REQUEST(xPanoramiXGetScreenCountReq);
+ register int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xPanoramiXGetScreenCountReq);
+ return ProcPseudoramiXGetScreenCount(client);
+}
+
+static int
+SProcPseudoramiXGetScreenSize(ClientPtr client)
+{
+ REQUEST(xPanoramiXGetScreenSizeReq);
+ register int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xPanoramiXGetScreenSizeReq);
+ return ProcPseudoramiXGetScreenSize(client);
+}
+
+
+static int
+SProcPseudoramiXIsActive(ClientPtr client)
+{
+ REQUEST(xXineramaIsActiveReq);
+ register int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xXineramaIsActiveReq);
+ return ProcPseudoramiXIsActive(client);
+}
+
+
+static int
+SProcPseudoramiXQueryScreens(ClientPtr client)
+{
+ REQUEST(xXineramaQueryScreensReq);
+ register int n;
+
+ swaps (&stuff->length, n);
+ REQUEST_SIZE_MATCH(xXineramaQueryScreensReq);
+ return ProcPseudoramiXQueryScreens(client);
+}
+
+
+static int
+SProcPseudoramiXDispatch (ClientPtr client)
+{ REQUEST(xReq);
+ switch (stuff->data)
+ {
+ case X_PanoramiXQueryVersion:
+ return SProcPseudoramiXQueryVersion(client);
+ case X_PanoramiXGetState:
+ return SProcPseudoramiXGetState(client);
+ case X_PanoramiXGetScreenCount:
+ return SProcPseudoramiXGetScreenCount(client);
+ case X_PanoramiXGetScreenSize:
+ return SProcPseudoramiXGetScreenSize(client);
+ case X_XineramaIsActive:
+ return SProcPseudoramiXIsActive(client);
+ case X_XineramaQueryScreens:
+ return SProcPseudoramiXQueryScreens(client);
+ }
+ return BadRequest;
+}
projects / synfig.git / blobdiff