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authorKevin E Martin <kem@kem.org>2004-06-30 20:06:53 +0000
committerKevin E Martin <kem@kem.org>2004-06-30 20:06:53 +0000
commit90b1782cf132d4d3a753e4643fe8c398cecbb07b (patch)
treee4d22384522e6276fc5a5a2235ace7ebc8434954 /src
downloadxorg-lib-libdmx-90b1782cf132d4d3a753e4643fe8c398cecbb07b.tar.gz
Diffstat (limited to 'src')
-rw-r--r--src/dmx.c802
1 files changed, 802 insertions, 0 deletions
diff --git a/src/dmx.c b/src/dmx.c
new file mode 100644
index 0000000..0f9c099
--- /dev/null
+++ b/src/dmx.c
@@ -0,0 +1,802 @@
+/* $XFree86$ */
+/*
+ * Copyright 2002-2004 Red Hat Inc., Durham, North Carolina.
+ *
+ * All Rights Reserved.
+ *
+ * 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 on the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) 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
+ * NON-INFRINGEMENT. IN NO EVENT SHALL RED HAT AND/OR THEIR SUPPLIERS
+ * BE LIABLE FOR ANY CLAIM, 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.
+ */
+
+/*
+ * Authors:
+ * Rickard E. (Rik) Faith <faith@redhat.com>
+ *
+ */
+
+/* THIS IS NOT AN X CONSORTIUM STANDARD */
+
+/** \file
+ * This file implements the client-side part of the DMX protocol. It
+ * can be included in client applications by linking with the libdmx.a
+ * library. */
+
+#define NEED_REPLIES
+#include <X11/Xlibint.h>
+#include "Xext.h"
+#define EXTENSION_PROC_ARGS void *
+#include "extutil.h"
+#include "dmxproto.h"
+#include "dmxext.h"
+
+static XExtensionInfo dmx_extension_info_data;
+static XExtensionInfo *dmx_extension_info = &dmx_extension_info_data;
+static const char *dmx_extension_name = DMX_EXTENSION_NAME;
+
+#define DMXCheckExtension(dpy,i,val) \
+ XextCheckExtension(dpy, i, dmx_extension_name, val)
+#define DMXSimpleCheckExtension(dpy,i) \
+ XextSimpleCheckExtension(dpy, i, dmx_extension_name)
+
+/*****************************************************************************
+ * *
+ * private utility routines *
+ * *
+ *****************************************************************************/
+
+static int close_display(Display *dpy, XExtCodes *extCodes);
+static /* const */ XExtensionHooks dmx_extension_hooks = {
+ NULL, /* create_gc */
+ NULL, /* copy_gc */
+ NULL, /* flush_gc */
+ NULL, /* free_gc */
+ NULL, /* create_font */
+ NULL, /* free_font */
+ close_display, /* close_display */
+ NULL, /* wire_to_event */
+ NULL, /* event_to_wire */
+ NULL, /* error */
+ NULL, /* error_string */
+};
+
+static XEXT_GENERATE_FIND_DISPLAY(find_display, dmx_extension_info,
+ (char *)dmx_extension_name,
+ &dmx_extension_hooks,
+ 0, NULL)
+
+static XEXT_GENERATE_CLOSE_DISPLAY(close_display, dmx_extension_info)
+
+
+/*****************************************************************************
+ * *
+ * public DMX Extension routines *
+ * *
+ *****************************************************************************/
+
+/** If the server has the DMX extension, the event and error bases will
+ * be placed in \a event_basep and \a error_basep, and True will be
+ * returned. Otherwise, False will be returned.
+ *
+ * Available in DMX Protocol Version 1.0 */
+Bool DMXQueryExtension(Display *dpy, int *event_basep, int *error_basep)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+
+ if (XextHasExtension(info)) {
+ *event_basep = info->codes->first_event;
+ *error_basep = info->codes->first_error;
+ return True;
+ } else {
+ return False;
+ }
+}
+
+/** If the DMXQueryVersion protocol request returns version information
+ * from the server, \a majorVersion, \a minorVersion, and \a
+ * patchVersion are filled in with the appropriate information and True
+ * is returned. Otherwise, False will be returned.
+ *
+ * Available in DMX Protocol Version 1.0 */
+Bool DMXQueryVersion(Display *dpy,
+ int *majorVersion, int *minorVersion, int *patchVersion)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXQueryVersionReply rep;
+ xDMXQueryVersionReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXQueryVersion, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXQueryVersion;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xTrue)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ *majorVersion = rep.majorVersion;
+ *minorVersion = rep.minorVersion;
+ *patchVersion = rep.patchVersion;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+/** Flush all pending dmxSync requests in DMX server.
+ *
+ * Available in DMX Protocol Version 1.5 */
+Bool DMXSync(Display *dpy)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXSyncReply rep;
+ xDMXSyncReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXSync, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXSync;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xTrue)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status == Success ? True : False;
+}
+
+/** The creation of the specified \a window will be forced.
+ *
+ * Available in DMX Protocol Version 1.2
+ * Reply added in DMX Protocol Version 2.0 */
+Bool DMXForceWindowCreation(Display *dpy, Window window)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXForceWindowCreationReq *req;
+ xDMXForceWindowCreationReply rep;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXForceWindowCreation, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXForceWindowCreation;
+ req->window = window;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xTrue)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status == Success ? True : False;
+}
+
+/** If the DMXGetScreenCount protocol request returns the screen count,
+ * the value will be placed in \a screen_count, and True will be
+ * returned. Otherwise, False will be returned.
+ *
+ * Available in DMX Protocol Version 1.0 */
+Bool DMXGetScreenCount(Display *dpy, int *screen_count)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXGetScreenCountReply rep;
+ xDMXGetScreenCountReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXGetScreenCount, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXGetScreenCount;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xTrue)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ *screen_count = rep.screenCount;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+/** If the DMXGetScreenAttributes protocol request returns information
+ * for the specified \a physical_screen, information about the screen
+ * will be placed in \a attr, and True will be returned. Otherwise,
+ * False will be returned.
+ *
+ * Available in DMX Protocol Version 1.0; Modified in Version 2.0 */
+Bool DMXGetScreenAttributes(Display *dpy, int physical_screen,
+ DMXScreenAttributes *attr)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXGetScreenAttributesReply rep;
+ xDMXGetScreenAttributesReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXGetScreenAttributes, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXGetScreenAttributes;
+ req->physicalScreen = physical_screen;
+ if (!_XReply(dpy, (xReply *)&rep,
+ (SIZEOF(xDMXGetScreenAttributesReply) - 32) >> 2, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ attr->displayName = Xmalloc(rep.displayNameLength + 1 + 4 /* for pad */);
+ _XReadPad(dpy, attr->displayName, rep.displayNameLength);
+ attr->displayName[rep.displayNameLength] = '\0';
+ attr->logicalScreen = rep.logicalScreen;
+
+ attr->screenWindowWidth = rep.screenWindowWidth;
+ attr->screenWindowHeight = rep.screenWindowHeight;
+ attr->screenWindowXoffset = rep.screenWindowXoffset;
+ attr->screenWindowYoffset = rep.screenWindowYoffset;
+
+ attr->rootWindowWidth = rep.rootWindowWidth;
+ attr->rootWindowHeight = rep.rootWindowHeight;
+ attr->rootWindowXoffset = rep.rootWindowXoffset;
+ attr->rootWindowYoffset = rep.rootWindowYoffset;
+ attr->rootWindowXorigin = rep.rootWindowXorigin;
+ attr->rootWindowYorigin = rep.rootWindowYorigin;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+static CARD32 _DMXGetScreenAttribute(int bit, DMXScreenAttributes *attr)
+{
+ switch (1 << bit) {
+ case DMXScreenWindowWidth: return attr->screenWindowWidth;
+ case DMXScreenWindowHeight: return attr->screenWindowHeight;
+ case DMXScreenWindowXoffset: return attr->screenWindowXoffset;
+ case DMXScreenWindowYoffset: return attr->screenWindowYoffset;
+ case DMXRootWindowWidth: return attr->rootWindowWidth;
+ case DMXRootWindowHeight: return attr->rootWindowHeight;
+ case DMXRootWindowXoffset: return attr->rootWindowXoffset;
+ case DMXRootWindowYoffset: return attr->rootWindowYoffset;
+ case DMXRootWindowXorigin: return attr->rootWindowXorigin;
+ case DMXRootWindowYorigin: return attr->rootWindowYorigin;
+ default: return 0;
+ }
+}
+
+static int _DMXDumpScreenAttributes(Display *dpy,
+ unsigned long mask,
+ DMXScreenAttributes *attr)
+{
+ int i;
+ unsigned long value_list[32];
+ unsigned long *value = value_list;
+ int count = 0;
+
+ for (i = 0; i < 32; i++) {
+ if (mask & (1 << i)) {
+ *value++ = _DMXGetScreenAttribute(i, attr);
+ ++count;
+ }
+ }
+ Data32(dpy, value_list, count * sizeof(CARD32));
+ return count;
+}
+
+static CARD32 _DMXGetInputAttribute(int bit, DMXInputAttributes *attr)
+{
+ switch (1 << bit) {
+ case DMXInputType:
+ switch (attr->inputType) {
+ case DMXLocalInputType: return 0;
+ case DMXConsoleInputType: return 1;
+ case DMXBackendInputType: return 2;
+ }
+ return attr->inputType;
+ case DMXInputPhysicalScreen: return attr->physicalScreen;
+ case DMXInputSendsCore: return attr->sendsCore;
+ default: return 0;
+ }
+}
+
+static int _DMXDumpInputAttributes(Display *dpy,
+ unsigned long mask,
+ DMXInputAttributes *attr)
+{
+ int i;
+ unsigned long value_list[32];
+ unsigned long *value = value_list;
+ int count = 0;
+
+ for (i = 0; i < 32; i++) {
+ if (mask & (1 << i)) {
+ *value++ = _DMXGetInputAttribute(i, attr);
+ ++count;
+ }
+ }
+ Data32(dpy, value_list, count * sizeof(CARD32));
+ return count;
+}
+
+/** Change geometries and positions of the DMX screen and root windows
+ * on the back-end X server. */
+int DMXChangeScreensAttributes(Display *dpy,
+ int screen_count,
+ int *screens,
+ int mask_count,
+ unsigned int *masks,
+ DMXScreenAttributes *attrs, /* vector */
+ int *error_screen)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXChangeScreensAttributesReply rep;
+ xDMXChangeScreensAttributesReq *req;
+ int i;
+ unsigned int mask = 0;
+ CARD32 *screen_list;
+ CARD32 *mask_list;
+
+ DMXCheckExtension(dpy, info, False);
+
+ if (screen_count < 1 || mask_count < 1) return DmxBadValue;
+
+ LockDisplay(dpy);
+ GetReq(DMXChangeScreensAttributes, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXChangeScreensAttributes;
+ req->screenCount = screen_count;
+ req->maskCount = mask_count;
+ req->length += screen_count + mask_count;
+
+ screen_list = (CARD32 *)Xmalloc(sizeof(*screen_list) * screen_count);
+ for (i = 0; i < screen_count; i++) screen_list[i] = screens[i];
+ Data32(dpy, screen_list, screen_count * sizeof(CARD32));
+ Xfree(screen_list);
+
+ mask_list = (CARD32 *)Xmalloc(sizeof(*mask_list) * mask_count);
+ for (i = 0; i < mask_count; i++) mask_list[i] = masks[i];
+ Data32(dpy, mask_list, mask_count * sizeof(CARD32));
+ Xfree(mask_list);
+
+ for (i = 0; i < screen_count; i++) {
+ if (i < mask_count) mask = masks[i];
+ req->length += _DMXDumpScreenAttributes(dpy, mask, attrs + i);
+ }
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return DmxBadReply;
+ }
+ if (error_screen) *error_screen = rep.errorScreen;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status;
+}
+
+/** Add a screen. */
+Bool DMXAddScreen(Display *dpy, const char *displayName, unsigned int mask,
+ DMXScreenAttributes *attr, int *screen)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXAddScreenReply rep;
+ xDMXAddScreenReq *req;
+ int length;
+ int paddedLength;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXAddScreen, req);
+ length = displayName ? strlen(displayName) : 0;
+ paddedLength = (length + 3) & ~3;
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXAddScreen;
+ req->displayNameLength = length;
+ req->physicalScreen = *screen;
+ req->valueMask = mask;
+ req->length += paddedLength/4;
+ req->length += _DMXDumpScreenAttributes(dpy, mask, attr);
+
+ if (length) {
+ char *buffer = Xmalloc(paddedLength);
+ memset(buffer, 0, paddedLength);
+ strcpy(buffer, displayName);
+ Data32(dpy, buffer, paddedLength);
+ Xfree(buffer);
+ }
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ if (screen) *screen = rep.physicalScreen;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status == Success ? True : False;
+}
+
+/** Remove a screen. */
+Bool DMXRemoveScreen(Display *dpy, int screen)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXRemoveScreenReply rep;
+ xDMXRemoveScreenReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXRemoveScreen, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXRemoveScreen;
+ req->physicalScreen = screen;
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status == Success ? True : False;
+}
+
+/** If the DMXGetWindowAttributes protocol request returns information
+ * about the specified \a window, the number of screens for which
+ * information is available will be returned in \a screen_count and
+ * information about the first \a available_count of those screens will
+ * be placed in \a inf. Because this call transports a great deal of
+ * information over the wire, please call #DMXGetScreenCount first, and
+ * make sure \a inf is that large.
+ *
+ * Note that if the specified \a window has not yet been mapped when
+ * #DMXGetWindowAttributes is called, then a subsequent XMapWindow call
+ * might be buffered in xlib while requests directly to the back-end X
+ * servers are processed. This race condition can be solved by calling
+ * #DMXSync before talking directly to the back-end X servers.
+ *
+ * Available in DMX Protocol Version 1.0, but not working correctly
+ * until DMX Protocol Version 1.4 */
+Bool DMXGetWindowAttributes(Display *dpy, Window window,
+ int *screen_count, int available_count,
+ DMXWindowAttributes *inf)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXGetWindowAttributesReply rep;
+ xDMXGetWindowAttributesReq *req;
+ unsigned long current;
+ CARD32 *screens; /* Must match protocol size */
+ CARD32 *windows; /* Must match protocol size */
+ XRectangle *pos; /* Must match protocol size */
+ XRectangle *vis; /* Must match protocol size */
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXGetWindowAttributes, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXGetWindowAttributes;
+ req->window = window;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ /* FIXME: check for NULL? */
+ screens = Xmalloc(rep.screenCount * sizeof(*screens));
+ windows = Xmalloc(rep.screenCount * sizeof(*windows));
+ pos = Xmalloc(rep.screenCount * sizeof(*pos));
+ vis = Xmalloc(rep.screenCount * sizeof(*vis));
+
+ _XRead(dpy, (char *)screens, rep.screenCount * sizeof(*screens));
+ _XRead(dpy, (char *)windows, rep.screenCount * sizeof(*windows));
+ _XRead(dpy, (char *)pos, rep.screenCount * sizeof(*pos));
+ _XRead(dpy, (char *)vis, rep.screenCount * sizeof(*vis));
+
+ *screen_count = rep.screenCount;
+ for (current = 0;
+ current < rep.screenCount && current < (unsigned)available_count;
+ current++, inf++) {
+ inf->screen = screens[current];
+ inf->window = windows[current];
+ inf->pos = pos[current];
+ inf->vis = vis[current];
+ }
+
+ Xfree(vis);
+ Xfree(pos);
+ Xfree(windows);
+ Xfree(screens);
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+/** If the DMXGetDesktopAttributes protocol request returns information
+ * correctly, the information will be placed in \a attr, and True will
+ * be returned. Otherwise, False will be returned.
+ *
+ * Available in DMX Protocol Version 2.0 */
+Bool DMXGetDesktopAttributes(Display *dpy, DMXDesktopAttributes *attr)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXGetDesktopAttributesReply rep;
+ xDMXGetDesktopAttributesReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXGetDesktopAttributes, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXGetDesktopAttributes;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ attr->width = rep.width;
+ attr->height = rep.height;
+ attr->shiftX = rep.shiftX;
+ attr->shiftY = rep.shiftY;
+
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+static CARD32 _DMXGetDesktopAttribute(int bit, DMXDesktopAttributes *attr)
+{
+ switch (1 << bit) {
+ case DMXDesktopWidth: return attr->width;
+ case DMXDesktopHeight: return attr->height;
+ case DMXDesktopShiftX: return attr->shiftX;
+ case DMXDesktopShiftY: return attr->shiftY;
+ default: return 0;
+ }
+}
+
+static int _DMXDumpDesktopAttributes(Display *dpy,
+ unsigned long mask,
+ DMXDesktopAttributes *attr)
+{
+ int i;
+ unsigned long value_list[32];
+ unsigned long *value = value_list;
+ int count = 0;
+
+ for (i = 0; i < 32; i++) {
+ if (mask & (1 << i)) {
+ *value++ = _DMXGetDesktopAttribute(i, attr);
+ ++count;
+ }
+ }
+ Data32(dpy, value_list, count * sizeof(CARD32));
+ return count;
+}
+
+/** Change the global bounding box and origin offset.
+ *
+ * Available in DMX Protocol Version 2.0 */
+int DMXChangeDesktopAttributes(Display *dpy,
+ unsigned int mask,
+ DMXDesktopAttributes *attr)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXChangeDesktopAttributesReply rep;
+ xDMXChangeDesktopAttributesReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXChangeDesktopAttributes, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXChangeDesktopAttributes;
+ req->valueMask = mask;
+ req->length +=_DMXDumpDesktopAttributes(dpy, mask, attr);
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return DmxBadReply;
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status;
+}
+
+/** If the DMXGetInputCount protocol request returns the input count,
+ * the value will be placed in \a input_count, and True will be
+ * returned. Otherwise, False will be returned.
+ *
+ * Available in DMX Protocol Version 1.1 */
+Bool DMXGetInputCount(Display *dpy, int *input_count)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXGetInputCountReply rep;
+ xDMXGetInputCountReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXGetInputCount, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXGetInputCount;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xTrue)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ *input_count = rep.inputCount;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+/** If the DMXGetInputAttributes protocol request returns information
+ * about the input device with the specified \a id, information about
+ * the input device will be placed in \a inf, and True will be returned.
+ * Otherwise, False will be returned.
+ *
+ * Available in DMX Protocol Version 1.1 */
+Bool DMXGetInputAttributes(Display *dpy, int id, DMXInputAttributes *inf)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXGetInputAttributesReply rep;
+ xDMXGetInputAttributesReq *req;
+ char *buffer;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXGetInputAttributes, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXGetInputAttributes;
+ req->deviceId = id;
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+
+ switch (rep.inputType) {
+ case 0: inf->inputType = DMXLocalInputType; break;
+ case 1: inf->inputType = DMXConsoleInputType; break;
+ case 2: inf->inputType = DMXBackendInputType; break;
+ }
+
+ inf->physicalScreen = rep.physicalScreen;
+ inf->physicalId = rep.physicalId;
+ inf->isCore = rep.isCore;
+ inf->sendsCore = rep.sendsCore;
+ inf->detached = rep.detached;
+ buffer = Xmalloc(rep.nameLength + 1 + 4 /* for pad */);
+ _XReadPad(dpy, buffer, rep.nameLength);
+ buffer[rep.nameLength] = '\0';
+ inf->name = buffer;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return True;
+}
+
+/** Add input. */
+Bool DMXAddInput(Display *dpy, unsigned int mask, DMXInputAttributes *attr,
+ int *id)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXAddInputReply rep;
+ xDMXAddInputReq *req;
+ int length;
+ int paddedLength;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXAddInput, req);
+ length = attr->name ? strlen(attr->name) : 0;
+ paddedLength = (length + 3) & ~3;
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXAddInput;
+ req->displayNameLength = length;
+ req->valueMask = mask;
+ req->length += paddedLength/4;
+ req->length += _DMXDumpInputAttributes(dpy, mask, attr);
+
+ if (length) {
+ char *buffer = Xmalloc(paddedLength);
+ memset(buffer, 0, paddedLength);
+ strcpy(buffer, attr->name);
+ Data32(dpy, buffer, paddedLength);
+ Xfree(buffer);
+ }
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ if (id) *id = rep.physicalId;
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status == Success ? True : False;
+}
+
+/** Add backend input (a helper function that calls #DMXAddInput). */
+Bool DMXAddBackendInput(Display *dpy, int screen, int sendsCore, int *newId)
+{
+ DMXInputAttributes attr;
+ unsigned int mask = (DMXInputType
+ | DMXInputPhysicalScreen
+ | DMXInputSendsCore);
+
+ attr.inputType = DMXBackendInputType;
+ attr.physicalScreen = screen;
+ attr.sendsCore = sendsCore;
+ attr.name = NULL;
+ return DMXAddInput(dpy, mask, &attr, newId);
+}
+
+/** Add console input (a helper function that calls #DMXAddInput). */
+Bool DMXAddConsoleInput(Display *dpy, const char *name, int sendsCore,
+ int *newId)
+{
+ DMXInputAttributes attr;
+ unsigned int mask = (DMXInputType
+ | DMXInputSendsCore);
+
+ attr.inputType = DMXConsoleInputType;
+ attr.physicalScreen = 0;
+ attr.sendsCore = sendsCore;
+ attr.name = name;
+ return DMXAddInput(dpy, mask, &attr, newId);
+}
+
+/** Remove an input. */
+Bool DMXRemoveInput(Display *dpy, int id)
+{
+ XExtDisplayInfo *info = find_display(dpy);
+ xDMXRemoveInputReply rep;
+ xDMXRemoveInputReq *req;
+
+ DMXCheckExtension(dpy, info, False);
+
+ LockDisplay(dpy);
+ GetReq(DMXRemoveInput, req);
+ req->reqType = info->codes->major_opcode;
+ req->dmxReqType = X_DMXRemoveInput;
+ req->physicalId = id;
+
+ if (!_XReply(dpy, (xReply *)&rep, 0, xFalse)) {
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return False;
+ }
+ UnlockDisplay(dpy);
+ SyncHandle();
+ return rep.status == Success ? True : False;
+}