[Spice-devel] [PATCH] client: add xinerama support
Alon Levy
alevy at redhat.com
Sun Nov 13 03:15:43 PST 2011
From: Arnon Gilboa <agilboa at agilboa.usersys.redhat.com>
RHEL-6 Bugzilla: 695323
cherry-picked from qspice commit
003667ac99beeec9b330a07bc3569c59a96d4588
which fixes RHEL-5 541566
---
client/Makefile.am | 2 +
client/x11/platform.cpp | 147 +++++++++++++++++++++++++++++++++++++++++++++++
configure.ac | 15 +++++
3 files changed, 164 insertions(+), 0 deletions(-)
diff --git a/client/Makefile.am b/client/Makefile.am
index 2508267..f7c9c56 100644
--- a/client/Makefile.am
+++ b/client/Makefile.am
@@ -226,6 +226,7 @@ INCLUDES = \
$(XRANDR_CFLAGS) \
$(XFIXES_CFLAGS) \
$(WARN_CFLAGS) \
+ $(XINERAMA_CFLAGS) \
$(NULL)
spicec_LDFLAGS = $(SPICEC_STATIC_LINKAGE_BSTATIC)
@@ -246,6 +247,7 @@ spicec_LDADD = \
$(XFIXES_LIBS) \
$(XRANDR_LIBS) \
$(Z_LIBS) \
+ $(XINERAMA_LIBS) \
$(NULL)
EXTRA_DIST = \
diff --git a/client/x11/platform.cpp b/client/x11/platform.cpp
index aef6870..9094a64 100644
--- a/client/x11/platform.cpp
+++ b/client/x11/platform.cpp
@@ -74,6 +74,11 @@
#define USE_XRANDR_1_2
#endif
+#ifdef HAVE_XINERAMA
+#include <X11/extensions/Xinerama.h>
+#define USE_XINERAMA_1_0
+#endif
+
static Display* x_display = NULL;
static bool x_shm_avail = false;
static XVisualInfo **vinfo = NULL;
@@ -106,6 +111,10 @@ static bool using_xfixes_1_0 = false;
static int xfixes_event_base;
static int xfixes_error_base;
+#ifdef USE_XINERAMA_1_0
+static bool using_xinerama_1_0 = false;
+#endif
+
static unsigned int caps_lock_mask = 0;
static unsigned int num_lock_mask = 0;
@@ -1069,6 +1078,91 @@ bool DynamicScreen::set_screen_size(int size_index)
return true;
}
+#ifdef USE_XINERAMA_1_0
+
+class XineramaMonitor;
+typedef std::list<XineramaMonitor*> XineramaMonitorsList;
+
+class XineramaScreen : public XScreen {
+public:
+ XineramaScreen(Display* display, int screen, int& next_mon_id, XineramaScreenInfo* xin_screens,
+ int num_xin_screens);
+ virtual ~XineramaScreen();
+
+ void publish_monitors(MonitorsList& monitors);
+
+private:
+ XineramaMonitorsList _monitors;
+};
+
+class XineramaMonitor : public Monitor {
+public:
+ XineramaMonitor(int id, XineramaScreenInfo& xin_screen);
+
+ virtual void do_set_mode(int width, int height);
+ virtual void do_restore() {}
+ virtual int get_depth() { return 32;}
+ virtual SpicePoint get_position() { return _position;}
+ virtual SpicePoint get_size() const { return _size;}
+ virtual bool is_out_of_sync() { return _out_of_sync;}
+ virtual int get_screen_id() { return 0;}
+
+private:
+ SpicePoint _position;
+ SpicePoint _size;
+ bool _out_of_sync;
+};
+
+XineramaScreen::XineramaScreen(Display* display, int screen, int& next_mon_id,
+ XineramaScreenInfo* xin_screens, int num_xin_screens)
+ : XScreen(display, screen)
+{
+ X_DEBUG_SYNC(display);
+ for (int i = 0; i < num_xin_screens; i++) {
+ _monitors.push_back(new XineramaMonitor(next_mon_id++, xin_screens[i]));
+ }
+ Window root_window = RootWindow(display, screen);
+ XSelectInput(display, root_window, StructureNotifyMask);
+ XRRSelectInput(display, root_window, RRScreenChangeNotifyMask); // TODO: this fails if we don't have RR extension (but do have XINERAMA)
+ XPlatform::set_win_proc(root_window, root_win_proc); // Xlib: extension "RANDR" missing on display ":3.0".
+ X_DEBUG_SYNC(display);
+}
+
+XineramaScreen::~XineramaScreen()
+{
+ while (!_monitors.empty()) {
+ XineramaMonitor* monitor = _monitors.front();
+ _monitors.pop_front();
+ delete monitor;
+ }
+}
+
+void XineramaScreen::publish_monitors(MonitorsList& monitors)
+{
+ XineramaMonitorsList::iterator iter = _monitors.begin();
+ for (; iter != _monitors.end(); iter++) {
+ monitors.push_back(*iter);
+ }
+}
+
+XineramaMonitor::XineramaMonitor(int id, XineramaScreenInfo& screen_info)
+ : Monitor(id)
+ , _out_of_sync (false)
+{
+ _position.x = screen_info.x_org;
+ _position.y = screen_info.y_org;
+ _size.x = screen_info.width;
+ _size.y = screen_info.height;
+}
+
+
+void XineramaMonitor::do_set_mode(int width, int height)
+{
+ _out_of_sync = width > _size.x || height > _size.y;
+}
+
+#endif
+
#ifdef USE_XRANDR_1_2
class MultyMonScreen: public XScreen {
@@ -2314,6 +2408,35 @@ void XMonitor::set_mode(const XRRModeInfo& mode)
#endif
+#ifdef USE_XINERAMA_1_0
+
+static XineramaScreenInfo* init_xinerama_screens(int* num_xin_screens)
+{
+ XineramaScreenInfo* xin_screens = NULL;
+
+ if (using_xinerama_1_0 && ScreenCount(x_display) == 1) {
+ int ncrtc = 0;
+#ifdef USE_XRANDR_1_2
+ if (using_xrandr_1_2) {
+ AutoScreenRes res(XRRGetScreenResources(x_display, RootWindow(x_display, 0)));
+ if (res.valid()) {
+ ncrtc = res->ncrtc;
+ }
+ }
+#endif
+ if (ncrtc < 2) {
+ xin_screens = XineramaQueryScreens(x_display, num_xin_screens);
+ }
+ }
+ if (xin_screens && *num_xin_screens < 2) {
+ XFree(xin_screens);
+ return NULL;
+ }
+ return xin_screens;
+}
+
+#endif
+
static MonitorsList monitors;
static Monitor* primary_monitor = NULL;
@@ -2324,6 +2447,15 @@ const MonitorsList& Platform::init_monitors()
{
int next_mon_id = 0;
ASSERT(screens.empty());
+
+#ifdef USE_XINERAMA_1_0
+ int num_xin_screens;
+ XineramaScreenInfo* xin_screens = init_xinerama_screens(&num_xin_screens);
+ if (xin_screens) {
+ screens.push_back(new XineramaScreen(x_display, 0, next_mon_id, xin_screens, num_xin_screens));
+ XFree(xin_screens);
+ } else
+#endif
#ifdef USE_XRANDR_1_2
if (using_xrandr_1_2) {
for (int i = 0; i < ScreenCount(x_display); i++) {
@@ -2944,6 +3076,20 @@ static void init_xrender()
XRenderQueryVersion(x_display, &major, &minor) && (major > 0 || minor >= 5);
}
+static void init_xinerama()
+{
+#ifdef USE_XINERAMA_1_0
+ int event_base;
+ int error_base;
+ int major;
+ int minor;
+
+ using_xinerama_1_0 = XineramaQueryExtension(x_display, &event_base, &error_base) &&
+ XineramaQueryVersion(x_display, &major, &minor) && major >= 1 && minor >= 0 &&
+ XineramaIsActive(x_display);
+#endif
+}
+
static void init_xfixes()
{
int major;
@@ -3148,6 +3294,7 @@ void Platform::init()
init_xrender();
init_xfixes();
init_XIM();
+ init_xinerama();
struct sigaction act;
memset(&act, 0, sizeof(act));
diff --git a/configure.ac b/configure.ac
index 646cbe7..7d82690 100644
--- a/configure.ac
+++ b/configure.ac
@@ -283,6 +283,19 @@ if test "$red_target" = "x11"; then
AC_SUBST(MISC_X_LIBS)
fi
+PKG_CHECK_MODULES(XINERAMA,
+ xinerama >= 1.0,
+ have_xinerama=yes,
+ have_xinerama=no)
+
+AM_CONDITIONAL([HAVE_XINERAMA], [test "x$have_xinerama" = "xyes"])
+if test "x$have_xinerama" = "xyes" ; then
+ AC_DEFINE([HAVE_XINERAMA], [], [Define if we have Xinerama])
+ AC_SUBST(XINERAMA_CFLAGS)
+ AC_SUBST(XINERAMA_LIBS)
+ SPICE_REQUIRES+=" Xinerama"
+fi
+
# Add parameter for (partial) static linkage of spice client.
# this is used to achive single binary package for all (?) distros.
AC_ARG_ENABLE(static-linkage,
@@ -523,6 +536,8 @@ echo "
Have XRANDR 1.2: ${have_xrandr12}
+ Have Xinerama: ${have_xinerama}
+
Support tunneling: ${enable_tunnel}
Red target: ${red_target}
--
1.7.7.3
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