Merge branch 'ehofman/sound'

These patches fixes minor bug in addition to providing --with-openal-framework and --with-cocoa-framework.
Now you can use your own version of OpenAL.framework for selecting various audio output device.
Plus, you can build FG/SG on Snow Leopard with cocoa configuration.

configure.ac

@@ -8,7 +8,7 @@ dnl Require at least automake 2.52
 AC_PREREQ(2.52)
 
 dnl Initialize the automake stuff
-AM_INIT_AUTOMAKE(SimGear, 1.9.1)
+AM_INIT_AUTOMAKE(SimGear, 2.0.0-rc2)
 
 dnl Specify KAI C++ compiler and flags.
 dnl Borrowed with slight modification from blitz distribution.
@@ -144,6 +144,15 @@ AC_ARG_WITH(osg_framework, [ --with-osg-framework=PREFIX      Specify the prefix
 
 if test "x$with_osg_framework" != "x"; then
     echo "osg framework prefix is $with_osg_framework"
+    CPPFLAGS = "$CPPFLAGS -F$with-osg-framework"
+    export DYLD_FRAMEWORK_PATH="$DYLD_FRAMEWORK_PATH:$with_osg_framework"
+fi
+
+dnl specifying OpenAL.framework (for user provided OpenAL.framework / ALUT)
+AC_ARG_WITH(openal_framework, [ --with-openal-framework=PREFIX    Speicfy the prefix path to OpenAL.framework ])
+
+if test "x$with_openal_framework" != "x"; then
+    echo "OpenAL framework prefix is $with_openal_framework"
 fi
 
 dnl Determine an extra directories to add to include/lib search paths
@@ -305,9 +314,18 @@ case "${host}" in
 
     LIBS="$LIBS -framework IOKit -framework OpenAL"
     openal_LIBS="$LIBS"
-    # not sure how to test if OpenAL exists on MacOS (does it come by default?)
     OPENAL_OK="yes"
-    ALUT_OK="yes"
+    ALUT_OK="no"
+
+    if test "x$with_openal_lib" != "x"; then
+        echo "libopenal is not supported on Mac OS platform."
+        openal_LIBS=""
+    fi
+    OPENAL_OK="yes"
+    # Looking for alut.h, if found assume that it is a part of
+    # the OpenAL package.
+    AC_CHECK_HEADERS([OpenAL/alut.h],[ALUT_OK="yes"])
+
 
     dnl Thank you Christian Bauer from SheepSaver
     dnl Modified by Tatsuhiro Nishioka for accepting a given framework path
@@ -338,6 +356,12 @@ case "${host}" in
     AS_VAR_POPDEF([ac_Framework])dnl
     ])
 
+    dnl Check for OpenAL.framework when --with-openal-framework is specified
+    dnl Of cource OpenAL.framework needs to have alut.h 
+    if test "x$with_openal_framework" != "x"; then
+      AC_CHECK_FRAMEWORK(OpenAL, [#include <OpenAL/alut.h>], $with_openal_framework)
+    fi
+
     ;;
 
 *)

projects/VC90/SimGear.vcproj

@@ -1003,7 +1003,6 @@
 				RelativePath="..\..\simgear\props\ExtendedPropertyAdapter.hxx"
 				>
 			</File>
-
 			<File
 				RelativePath="..\..\simgear\props\props.cxx"
 				>
@@ -1156,6 +1155,14 @@
 				RelativePath="..\..\simgear\scene\model\SGScaleTransform.hxx"
 				>
 			</File>
+			<File
+				RelativePath="..\..\simgear\scene\model\SGText.cxx"
+				>
+			</File>
+			<File
+				RelativePath="..\..\simgear\scene\model\SGText.hxx"
+				>
+			</File>
 			<File
 				RelativePath="..\..\simgear\scene\model\SGTranslateTransform.cxx"
 				>
@@ -1168,18 +1175,18 @@
 				RelativePath="..\..\simgear\scene\model\shadanim.cxx"
 				>
 			</File>
-			<File
-				RelativePath="..\..\simgear\scene\model\SGText.cxx"
-				>
-			</File>
-			<File
-				RelativePath="..\..\simgear\scene\model\SGText.hxx"
-				>
-			</File>
 		</Filter>
 		<Filter
 			Name="Lib_sgsound"
 			>
+			<File
+				RelativePath="..\..\simgear\sound\sample_group.cxx"
+				>
+			</File>
+			<File
+				RelativePath="..\..\simgear\sound\sample_group.hxx"
+				>
+			</File>
 			<File
 				RelativePath="..\..\simgear\sound\sample_openal.cxx"
 				>
@@ -1952,7 +1959,7 @@
 			</File>
 		</Filter>
 		<File
-			RelativePath="..\..\simgear\simgear_config.h-msvc71"
+			RelativePath="..\..\simgear\simgear_config.h-msvc90"
 			>
 			<FileConfiguration
 				Name="Release|Win32"

simgear/math/SGGeoc.hxx

@@ -79,6 +79,8 @@ public:
   static double courseDeg(const SGGeoc& from, const SGGeoc& to);
   static double distanceM(const SGGeoc& from, const SGGeoc& to);
 
+  // Compare two geocentric positions for equality
+  bool operator == ( const SGGeoc & other ) const;
 private:
   /// This one is private since construction is not unique if you do
   /// not know the units of the arguments, use the factory methods for
@@ -323,6 +325,15 @@ SGGeoc::distanceM(const SGGeoc& from, const SGGeoc& to)
   return SGGeodesy::distanceM(from, to);
 }
 
+inline
+bool
+SGGeoc::operator == ( const SGGeoc & other ) const
+{
+  return _lon == other._lon &&
+         _lat == other._lat &&
+         _radius == other._radius;
+}
+
 /// Output to an ostream
 template<typename char_type, typename traits_type>
 inline

simgear/math/SGGeod.hxx

@@ -86,6 +86,9 @@ public:
   /// Set the geodetic elevation from the argument given in feet
   void setElevationFt(double elevation);
 
+  // Compare two geodetic positions for equality
+  bool operator == ( const SGGeod & other ) const;
+
 #ifndef NO_OPENSCENEGRAPH_INTERFACE
   // Create a local coordinate frame in the earth-centered frame of
   // reference. X points north, Z points down.
@@ -350,6 +353,15 @@ SGGeod::setElevationFt(double elevation)
   _elevation = elevation*SG_FEET_TO_METER;
 }
 
+inline
+bool
+SGGeod::operator == ( const SGGeod & other ) const
+{
+  return _lon == other._lon &&
+         _lat == other._lat &&
+         _elevation == other._elevation;
+}
+
 /// Output to an ostream
 template<typename char_type, typename traits_type>
 inline

simgear/math/SGGeodesy.cxx

@@ -540,7 +540,7 @@ SGGeodesy::courseRad(const SGGeoc& from, const SGGeoc& to)
 }
 
 double
-SGGeodesy::distanceM(const SGGeoc& from, const SGGeoc& to)
+SGGeodesy::distanceRad(const SGGeoc& from, const SGGeoc& to)
 {
   // d = 2*asin(sqrt((sin((lat1-lat2)/2))^2 +
   //            cos(lat1)*cos(lat2)*(sin((lon1-lon2)/2))^2))
@@ -550,5 +550,12 @@ SGGeodesy::distanceM(const SGGeoc& from, const SGGeoc& to)
   double tmp2 = sin(0.5*(from.getLongitudeRad() - to.getLongitudeRad()));
   double square = tmp1*tmp1 + cosLatFrom*cosLatTo*tmp2*tmp2;
   double s = SGMiscd::min(sqrt(SGMiscd::max(square, 0)), 1);
-  return 2 * asin(s) * SG_RAD_TO_NM * SG_NM_TO_METER;
+  return 2 * asin(s);
+}
+
+
+double
+SGGeodesy::distanceM(const SGGeoc& from, const SGGeoc& to)
+{
+  return distanceRad(from, to) * SG_RAD_TO_NM * SG_NM_TO_METER;
 }

simgear/math/SGGeodesy.hxx

@@ -61,6 +61,7 @@ public:
   static void advanceRadM(const SGGeoc& geoc, double course, double distance,
                           SGGeoc& result);
   static double courseRad(const SGGeoc& from, const SGGeoc& to);
+  static double distanceRad(const SGGeoc& from, const SGGeoc& to);
   static double distanceM(const SGGeoc& from, const SGGeoc& to);
 };
 

simgear/props/AtomicChangeListener.cxx

@@ -1,3 +1,8 @@
+
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
 #include "AtomicChangeListener.hxx"
 
 #include <algorithm>

simgear/scene/material/EffectBuilder.hxx

@@ -266,7 +266,7 @@ public:
         else
             return itr->second.ptr();
     }
-    template<typename T> friend class InstallAttributeBuilder;
+    template<typename T> friend struct InstallAttributeBuilder;
 };
 
 template<typename T>

simgear/scene/sky/newcloud.cxx

@@ -69,7 +69,6 @@ EffectMap effectMap;
 
 double SGNewCloud::sprite_density = 1.0;
 
-
 SGNewCloud::SGNewCloud(string type,
                        const SGPath &tex_path, 
                        string tex,
@@ -214,7 +213,7 @@ osg::ref_ptr<EffectGeode> SGNewCloud::genCloud() {
             z = height * cos(elev) * 0.5f;
         }
         
-        // Determine the height and width as scaling factors on the minimum size (used to create the quad)
+        // Determine the height and width as scaling factors on the minimum size (used to create the quad).
         float sprite_width = 1.0f + sg_random() * (max_sprite_width - min_sprite_width) / min_sprite_width;
         float sprite_height = 1.0f + sg_random() * (max_sprite_height - min_sprite_height) / min_sprite_height;
 

simgear/scene/tgdb/TreeBin.cxx

@@ -19,6 +19,10 @@
  *
  */
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
 #include <algorithm>
 #include <vector>
 #include <string>

simgear/scene/tgdb/apt_signs.cxx

@@ -106,6 +106,10 @@ SGMakeSign(SGMaterialLib *matlib, const string& path, const string& content)
     osg::Group* object = new osg::Group;
     object->setName(content);
 
+    SGMaterial *material = 0;
+    Effect *lighted_state = 0;
+    Effect *unlighted_state = 0;
+
     // Part I: parse & measure
     for (const char *s = content.data(); *s; s++) {
         string name;
@@ -215,31 +219,32 @@ SGMakeSign(SGMaterialLib *matlib, const string& path, const string& content)
             }
         }
 
+        if (newmat.size()) {
+            SGMaterial *m = matlib->find(newmat);
+            if (!m) {
+                // log error, but keep using previous material to at least show something
+                SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "ignoring unknown material `" << newmat << '\'');
+            } else {
+                material = m;
+                // set material states (lighted & unlighted)
+                lighted_state = material->get_effect();
+                newmat.append(".unlighted");
 
-        if (newmat.size() == 0 )
-          continue;
-
-        SGMaterial *material = matlib->find(newmat);
-        if (!material) {
-            SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "ignoring unknown material `" << newmat << '\'');
-            continue;
+                m = matlib->find(newmat);
+                if (m) {
+                    unlighted_state = m->get_effect();
+                } else {
+                    SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "ignoring unknown material `" << newmat << '\'');
+                    unlighted_state = lighted_state;
+                }
+            }
+            newmat.clear();
         }
 
-
-        // set material states (lighted & unlighted)
-        Effect *lighted_state = material->get_effect();
-        Effect *unlighted_state;
-        string u = newmat + ".unlighted";
-
-        SGMaterial *m = matlib->find(u);
-        if (m) {
-            unlighted_state = m->get_effect();
-        } else {
-            SG_LOG(SG_TERRAIN, SG_ALERT, SIGN "ignoring unknown material `" << u << '\'');
-            unlighted_state = lighted_state;
-        }
-        newmat = "";
-
+        // This can only happen if the default material is missing.
+        // Error has been already logged in the block above.
+        if (!material) continue;
+ 
         SGMaterialGlyph *glyph = material->get_glyph(name);
         if (!glyph) {
             SG_LOG( SG_TERRAIN, SG_ALERT, SIGN "unsupported glyph `" << *s << '\'');

simgear/scene/util/CopyOp.cxx

@@ -17,6 +17,10 @@
 // Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 // Boston, MA  02111-1307, USA.
 
+#ifdef HAVE_CONFIG_H
+#  include <simgear_config.h>
+#endif
+
 #include "CopyOp.hxx"
 
 #include <simgear/scene/material/Effect.hxx>

simgear/simgear_config.h-msvc90

@@ -0,0 +1,157 @@
+/* simgear_config.h.  Generated for MSCV++ 9.0 */
+
+/* Define if the X Window System is missing or not being used.  */
+#define X_DISPLAY_MISSING 1
+
+/* Define to empty if the keyword does not work.  */
+/* #undef const */
+
+/* Define if you don't have vprintf but do have _doprnt.  */
+/* #undef HAVE_DOPRNT */
+
+/* Define if you have the vprintf function.  */
+#define HAVE_VPRINTF 1
+
+/* Define to package name */
+#define PACKAGE "FlightGear"
+
+/* Define as the return type of signal handlers (int or void).  */
+#define RETSIGTYPE void
+
+/* Define to `unsigned' if <sys/types.h> doesn't define.  */
+/* #undef size_t */
+
+/* Define if you have the ANSI C header files.  */
+#define STDC_HEADERS 1
+
+/* Define if you can safely include both <sys/time.h> and <time.h>.  */
+/* #undef TIME_WITH_SYS_TIME */
+
+/* Define if your <sys/time.h> declares struct tm.  */
+/* #define TM_IN_SYS_TIME 1 */
+
+/* Define to version number */
+#define VERSION "1.99.4"
+
+/* Define if compiling on a Winbloze (95, NT, etc.) platform */
+#define WIN32 1
+
+/* Define if you have the GetLocalTime function.  */
+#define HAVE_GETLOCALTIME 1
+
+/* Define if you have the ftime function.  */
+/* #define HAVE_FTIME 1 */
+
+/* Define if you have the getitimer function.  */
+/* #define HAVE_GETITIMER 1 */
+
+/* Define if you have the getrusage function.  */
+/* #define HAVE_GETRUSAGE 1 */
+
+/* Define if you have the gettimeofday function.  */
+/* #define HAVE_GETTIMEOFDAY 1 */
+
+/* Define if you have the mktime function.  */
+#define HAVE_MKTIME 1
+
+/* Define if you have the rand function.  */
+#define HAVE_RAND 1
+
+/* Define if you have the random function.  */
+#define HAVE_RANDOM 1
+
+/* Define if you have the rint function.  */
+/* #define HAVE_RINT 1 */
+
+/* Define if you have the setitimer function.  */
+/* #define HAVE_SETITIMER 1 */
+
+/* Define if you have the signal function.  */
+#define HAVE_SIGNAL 1
+
+/* Define if you have the strstr function.  */
+#define HAVE_STRSTR 1
+
+/* Define if you have the <fcntl.h> header file.  */
+#define HAVE_FCNTL_H 1
+
+/* Define if you have the <getopt.h> header file.  */
+/* #define HAVE_GETOPT_H 1 */
+
+/* Define if you have the <malloc.h> header file.  */
+#define HAVE_MALLOC_H 1
+
+/* Define if you have the <stdlib.h> header file.  */
+#define HAVE_STDLIB_H 1
+
+/* Define if you have the <sys/time.h> header file.  */
+/* #define HAVE_SYS_TIME_H 1 */
+
+/* Define if you have the <sys/timeb.h> header file.  */
+#define HAVE_SYS_TIMEB_H 1
+
+/* Define if you have the <unistd.h> header file.  */
+/* #define HAVE_UNISTD_H 1 */
+
+/* Define if you have the <values.h> header file.  */
+/* #define HAVE_VALUES_H 1 */
+
+/* Define if you have the <winbase.h> header file.  */
+#define HAVE_WINBASE_H 1
+
+/* Define if you have the <windows.h> header file.  */
+#define HAVE_WINDOWS_H 1
+
+/* Define if you have the GL library (-lGL).  */
+#define HAVE_LIBGL 1
+
+/* Define if you have the GLU library (-lGLU).  */
+#define HAVE_LIBGLU 1
+
+/* Define if you have the GLcore library (-lGLcore).  */
+/* #undef HAVE_LIBGLCORE */
+
+/* Define if you have the ICE library (-lICE).  */
+/* #define HAVE_LIBICE 1 */
+
+/* Define if you have the MesaGL library (-lMesaGL).  */
+/* #undef HAVE_LIBMESAGL */
+
+/* Define if you have the MesaGLU library (-lMesaGLU).  */
+/* #undef HAVE_LIBMESAGLU */
+
+/* Define if you have the SM library (-lSM).  */
+/* #define HAVE_LIBSM 1 */
+
+/* Define if you have the X11 library (-lX11).  */
+/* #define HAVE_LIBX11 1 */
+
+/* Define if you have the Xext library (-lXext).  */
+/* #define HAVE_LIBXEXT 1 */
+
+/* Define if you have the Xi library (-lXi).  */
+/* #define HAVE_LIBXI 1 */
+
+/* Define if you have the Xmu library (-lXmu).  */
+/* #define HAVE_LIBXMU 1 */
+
+/* Define if you have the Xt library (-lXt).  */
+/* #define HAVE_LIBXT 1 */
+
+/* Define if you have the glut library (-lglut).  */
+#define HAVE_LIBGLUT 1
+
+/* Define if you have the m library (-lm).  */
+#define HAVE_LIBM 1
+
+/* Define if you have the socket library (-lsocket).  */
+/* #undef HAVE_LIBSOCKET */
+
+/* Define if you have the <memory.h> header file.  */
+#define HAVE_MEMORY_H 1
+
+#define HAVE_MEMCPY 1
+
+#define GLUT_H <GL/glut.h>
+
+#define NOMINMAX 1

simgear/sound/soundmgr_openal.cxx

@@ -69,7 +69,9 @@ SGSoundMgr::SGSoundMgr() :
     _geod_pos(SGGeod::fromCart(SGVec3d::zeros())),
     _velocity(SGVec3d::zeros()),
     _orientation(SGQuatd::zeros()),
-    _bad_doppler(false)
+    _bad_doppler(false),
+    _renderer("unknown"),
+    _vendor("unknown")
 {
 #if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
     if (_alut_init == 0) {
@@ -108,7 +110,9 @@ void SGSoundMgr::init(const char *devname) {
         }
     }
 
+    _device = device;
     ALCcontext *context = alcCreateContext(device, NULL);
+    testForALCError("context creation.");
     if ( testForError(context, "Unable to create a valid context.") ) {
         alcCloseDevice (device);
         return;
@@ -158,10 +162,10 @@ void SGSoundMgr::init(const char *devname) {
         else break;
     }
 
-    string vendor = (const char *)alGetString(AL_VENDOR);
-    string renderer = (const char *)alGetString(AL_RENDERER);
-    if ( vendor != "OpenAL Community" ||
-         (renderer != "Software" && renderer != "OpenAL Sample Implementation")
+    _vendor = (const char *)alGetString(AL_VENDOR);
+    _renderer = (const char *)alGetString(AL_RENDERER);
+    if ( (_vendor != "OpenAL Community" && _vendor != "Apple Computer Inc.") ||
+        (_renderer != "Software" && _renderer != "OpenAL Sample Implementation")
        )
     {
        _bad_doppler = true;
@@ -220,6 +224,9 @@ void SGSoundMgr::stop() {
         alcDestroyContext(_context);
         alcCloseDevice(_device);
         _context = NULL;
+
+        _renderer = "unknown";
+        _vendor = "unknown";
     }
 }
 
@@ -547,12 +554,15 @@ bool SGSoundMgr::load(string &samplepath, void **dbuf, int *fmt,
 
 #if defined(ALUT_API_MAJOR_VERSION) && ALUT_API_MAJOR_VERSION >= 1
     ALfloat freqf;
+    // ignore previous errors to prevent the system from halting on silly errors
+    alGetError();
+    alcGetError(_device);
     data = alutLoadMemoryFromFile(samplepath.c_str(), &format, &size, &freqf );
     freq = (ALsizei)freqf;
-    if (data == NULL) {
-        int error = alutGetError();
+    int error = alutGetError();
+    if (data == NULL || error != ALUT_ERROR_NO_ERROR) {
         string msg = "Failed to load wav file: ";
-        msg.append(alutGetErrorString(error));
+         msg.append(alutGetErrorString(error));
         throw sg_io_exception(msg.c_str(), sg_location(samplepath));
         return false;
     }
@@ -568,7 +578,18 @@ bool SGSoundMgr::load(string &samplepath, void **dbuf, int *fmt,
     ALenum error =  alGetError();
     if ( error != AL_NO_ERROR ) {
         string msg = "Failed to load wav file: ";
-        msg.append(alGetString(error));
+        const ALchar *errorString = alGetString(error);
+        if (errorString) {
+            msg.append(errorString);
+        } else {
+            // alGetString returns NULL when an unexpected or OS specific error
+            // occurs: e.g. -43 on Mac when file is not found.
+            // In this case, alGetString() sets 'Invalid Enum' error, so
+            // showing with the original error number is helpful.
+            stringstream ss;
+            ss << alGetString(alGetError()) << "(" << error << ")";
+            msg.append(ss.str());
+        }
         throw sg_io_exception(msg.c_str(), sg_location(samplepath));
         return false;
     }

simgear/sound/soundmgr_openal.hxx

@@ -289,6 +289,12 @@ public:
      */
     vector<const char*> get_available_devices();
 
+    /**
+     * Get the current OpenAL vendor or rendering backend.
+     */
+    const string& get_vendor() { return _vendor; }
+    const string& get_renderer() { return _renderer; }
+
 private:
     static int _alut_init;
 
@@ -321,6 +327,8 @@ private:
     vector<ALuint> _sources_in_use;
 
     bool _bad_doppler;
+    string _renderer;
+    string _vendor;
 
     bool testForALError(string s);
     bool testForALCError(string s);

simgear/structure/subsystem_mgr.cxx

@@ -110,10 +110,11 @@ SGSubsystemGroup::SGSubsystemGroup ()
 
 SGSubsystemGroup::~SGSubsystemGroup ()
 {
-    for (unsigned int i = 0; i < _members.size(); i++)
+    // reverse order to prevent order dependency problems
+    for (unsigned int i = _members.size(); i > 0; i--)
     {
-        _members[i]->printTimingStatistics();
-        delete _members[i];
+        _members[i-1]->printTimingStatistics();
+        delete _members[i-1];
     }
 }
 
@@ -148,8 +149,9 @@ SGSubsystemGroup::bind ()
 void
 SGSubsystemGroup::unbind ()
 {
-    for (unsigned int i = 0; i < _members.size(); i++)
-        _members[i]->subsystem->unbind();
+    // reverse order to prevent order dependency problems
+    for (unsigned int i = _members.size(); i > 0; i--)
+       _members[i-1]->subsystem->unbind();
 }
 
 void
@@ -381,7 +383,8 @@ SGSubsystemMgr::bind ()
 void
 SGSubsystemMgr::unbind ()
 {
-    for (int i = 0; i < MAX_GROUPS; i++)
+    // reverse order to prevent order dependency problems
+    for (int i = MAX_GROUPS-1; i >= 0; i--)
         _groups[i].unbind();
 }
 

simgear/xml/xmltok.c

@@ -1365,6 +1365,10 @@ int getEncodingIndex(const char *name)
   for (i = 0; i < sizeof(encodingNames)/sizeof(encodingNames[0]); i++)
     if (streqci(name, encodingNames[i]))
       return i;
+      
+  if (streqci(name, "ASCII"))
+    return US_ASCII_ENC;
+    
   return UNKNOWN_ENC;
 }