add skeleton Tunnel mode, no content yet

modes/Tunnel.cc

@@ -0,0 +1,49 @@
+
+#include <stdlib.h>
+#include <time.h>
+#include <math.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#include "Tunnel.h"
+
+Tunnel::Tunnel()
+{
+    m_last_ticks = 0;
+    srand(time(NULL) + getpid());
+}
+
+Tunnel::~Tunnel()
+{
+}
+
+bool Tunnel::expose (GnomeScreensaver & gs)
+{
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+    return true;
+}
+
+bool Tunnel::configure (GnomeScreensaver & gs)
+{
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluPerspective(60.0, gs.getAspectRatio() / gs.getNumMonitors(),
+            0.01, 1000.0);
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    gluLookAt(0, 0, 10, 0, 0, 0, 0, 1, 0);
+
+    glViewport(0, 0, gs.getWidth(), gs.getHeight());
+
+    return true;
+}
+
+bool Tunnel::update (GnomeScreensaver & gs)
+{
+    return true;
+}

modes/Tunnel.h

@@ -0,0 +1,28 @@
+
+#ifndef TUNNEL_H
+#define TUNNEL_H
+
+#include "LogoBox.h"
+#include "Mode.h"
+#include "GnomeScreensaver.h"
+
+class Tunnel : public Mode
+{
+    public:
+        Tunnel();
+        ~Tunnel();
+        bool expose (GnomeScreensaver & gs);
+        bool configure (GnomeScreensaver & gs);
+        bool update (GnomeScreensaver & gs);
+    protected:
+        LogoBox m_logobox;
+        int m_num_monitors;
+        uint64_t m_last_ticks;
+        void initMonitorInfo();
+        void getRandomAxis(float (*axis)[3]);
+        uint32_t getRandomSwitchTime();
+        float getRandomSpeed();
+};
+
+#endif /* TUNNEL_H */
+

src/dwss.cc

@@ -34,8 +34,9 @@ static Mode *getMode(GnomeScreensaver & gs)
 {
 #if 0
     return new Starfield(gs);
-#endif
     return new Spin();
+#endif
+    return new Tunnel();
 }
 
 int main (int argc, char *argv[])