/[svn]/gigedit/trunk/src/gigedit/gigedit.cpp
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Diff of /gigedit/trunk/src/gigedit/gigedit.cpp

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revision 1654 by schoenebeck, Wed Jan 30 02:20:48 2008 UTC revision 2474 by schoenebeck, Sun Sep 15 18:16:21 2013 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (C) 2007, 2008 Andreas Persson   * Copyright (C) 2007-2013 Andreas Persson
3   *   *
4   * This program is free software; you can redistribute it and/or   * This program is free software; you can redistribute it and/or
5   * modify it under the terms of the GNU General Public License as   * modify it under the terms of the GNU General Public License as
# Line 19  Line 19 
19    
20  #include "gigedit.h"  #include "gigedit.h"
21    
22  #include <gtkmm/main.h>  #include <glibmm/dispatcher.h>
23  #include <glibmm/main.h>  #include <glibmm/main.h>
24    #include <gtkmm/main.h>
25    
26    #if defined(__APPLE__)
27    # include <CoreFoundation/CoreFoundation.h>
28    # include "MacHelper.h"
29    #endif
30    
31  #include "mainwindow.h"  #include "mainwindow.h"
32    
33  #include "global.h"  #include "global.h"
34    
35  GigEditJob::GigEditJob() {  #ifdef __APPLE__
36      _msecs = 100; // 100ms by default  #include <dlfcn.h>
37  }  #include <glibmm/fileutils.h>
38    #include <glibmm/miscutils.h>
39  int GigEditJob::msecs() {  #endif
40      return _msecs;  
41  }  //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments below in this file for details)
42    #if defined(__APPLE__) // the following global external variables are defined in LinuxSampler's global_private.cpp ...
43    extern bool g_mainThreadCallbackSupported;
44    extern void (*g_mainThreadCallback)(void* info);
45    extern void* g_mainThreadCallbackInfo;
46    extern bool g_fireMainThreadCallback;
47    #endif
48    
49  namespace {  namespace {
50    
# Line 48  public: Line 61  public:
61      GigEditState(GigEdit* parent) : parent(parent) { }      GigEditState(GigEdit* parent) : parent(parent) { }
62      void run(gig::Instrument* pInstrument);      void run(gig::Instrument* pInstrument);
63    
     static std::vector< GigEditJob* > timeoutJobs;  
64      MainWindow* window;      MainWindow* window;
65    
66  private:  private:
# Line 57  private: Line 69  private:
69      class Cond {      class Cond {
70      private:      private:
71          bool pred;          bool pred;
72          Glib::Mutex mutex;          Glib::Threads::Mutex mutex;
73          Glib::Cond cond;          Glib::Threads::Cond cond;
74      public:      public:
75          Cond() : pred(false) { }          Cond() : pred(false) { }
76          void signal() {          void signal() {
77              Glib::Mutex::Lock lock(mutex);              Glib::Threads::Mutex::Lock lock(mutex);
78              pred = true;              pred = true;
79              cond.signal();              cond.signal();
80          }          }
81          void wait() {          void wait() {
82              Glib::Mutex::Lock lock(mutex);              Glib::Threads::Mutex::Lock lock(mutex);
83              while (!pred) cond.wait(mutex);              while (!pred) cond.wait(mutex);
84          }          }
85      };      };
86    
87    #ifdef OLD_THREADS
88      static Glib::StaticMutex mutex;      static Glib::StaticMutex mutex;
89    #else
90        static Glib::Threads::Mutex mutex;
91    #endif
92      static Glib::Dispatcher* dispatcher;      static Glib::Dispatcher* dispatcher;
93      static GigEditState* current;      static GigEditState* current;
94    
# Line 82  private: Line 98  private:
98      GigEdit* parent;      GigEdit* parent;
99      Cond open;      Cond open;
100      Cond close;      Cond close;
101        Cond initialized;
102      gig::Instrument* instrument;      gig::Instrument* instrument;
103    
104      void open_window();      void open_window();
105      void close_window();      void close_window();
106    #if defined(__APPLE__)
107        static void runInCFMainLoop(void* info);
108    #endif
109  };  };
110    
111    #ifdef WIN32
112    HINSTANCE gigedit_dll_handle = 0;
113    #endif
114    
115    #ifdef __APPLE__
116    std::string gigedit_localedir;
117    #endif
118    
119  void init_app() {  void init_app() {
120      static bool process_initialized = false;      static bool process_initialized = false;
121      if (!process_initialized) {      if (!process_initialized) {
# Line 95  void init_app() { Line 123  void init_app() {
123                    << std::flush;                    << std::flush;
124          setlocale(LC_ALL, "");          setlocale(LC_ALL, "");
125    
126  #if HAVE_GETTEXT  #ifdef __APPLE__
127            // Look for pango.modules, gdk-pixbuf.loaders and locale files
128            // under the same dir as the gigedit dylib is installed in.
129            Dl_info info;
130            if (dladdr((void*)&init_app, &info)) {
131                std::string libdir = Glib::path_get_dirname(info.dli_fname);
132    
133                if (Glib::getenv("PANGO_SYSCONFDIR") == "" &&
134                    Glib::file_test(Glib::build_filename(libdir,
135                                                         "pango/pango.modules"),
136                                    Glib::FILE_TEST_EXISTS)) {
137                    Glib::setenv("PANGO_SYSCONFDIR", libdir, true);
138                }
139                if (Glib::getenv("GDK_PIXBUF_MODULE_FILE") == "") {
140                    std::string module_file =
141                        Glib::build_filename(libdir,
142                                             "gtk-2.0/gdk-pixbuf.loaders");
143                    if (Glib::file_test(module_file, Glib::FILE_TEST_EXISTS)) {
144                        Glib::setenv("GDK_PIXBUF_MODULE_FILE", module_file, true);
145                    }
146                }
147      //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
148      //#if HAVE_GETTEXT
149                std::string localedir = Glib::build_filename(libdir, "locale");
150                if (Glib::file_test(localedir, Glib::FILE_TEST_EXISTS)) {
151                    gigedit_localedir = localedir;
152                    bindtextdomain(GETTEXT_PACKAGE, gigedit_localedir.c_str());
153                } else {
154                    bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
155                }
156      //#endif
157            }
158    
159            // The gtk file dialog stores its recent files state in
160            // ~/.local/share
161            g_mkdir_with_parents(
162                Glib::build_filename(Glib::get_home_dir(),
163                                     ".local/share").c_str(), 0777);
164    #endif // __APPLE__
165    
166    //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
167    #if (HAVE_GETTEXT || defined(__APPLE__))
168    
169      #ifdef WIN32
170        #if GLIB_CHECK_VERSION(2, 16, 0)
171            gchar* root =
172                g_win32_get_package_installation_directory_of_module(gigedit_dll_handle);
173        #else
174            gchar* root =
175                g_win32_get_package_installation_directory(NULL, NULL);
176        #endif
177            gchar* temp = g_build_filename(root, "/share/locale", NULL);
178            g_free(root);
179            gchar* localedir = g_win32_locale_filename_from_utf8(temp);
180            g_free(temp);
181            bindtextdomain(GETTEXT_PACKAGE, localedir);
182            g_free(localedir);
183      #elif !defined(__APPLE__)
184          bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);          bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
185      #endif
186          bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");          bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
187          textdomain(GETTEXT_PACKAGE);          textdomain(GETTEXT_PACKAGE);
188  #endif // HAVE_GETTEXT  #endif // HAVE_GETTEXT
189    
190    #ifdef OLD_THREADS
191          // make sure thread_init() is called once and ONLY once per process          // make sure thread_init() is called once and ONLY once per process
192          if (!Glib::thread_supported()) Glib::thread_init();          if (!Glib::thread_supported()) Glib::thread_init();
193    #endif
194          process_initialized = true;          process_initialized = true;
195      }      }
196  }  }
# Line 136  void connect_signals(GigEdit* gigedit, M Line 223  void connect_signals(GigEdit* gigedit, M
223      mainwindow->signal_dimreg_changed().connect(      mainwindow->signal_dimreg_changed().connect(
224          gigedit->signal_dimreg_changed().make_slot()          gigedit->signal_dimreg_changed().make_slot()
225      );      );
226        mainwindow->signal_sample_changed().connect(
227            gigedit->signal_sample_changed().make_slot()
228        );
229      mainwindow->signal_sample_ref_changed().connect(      mainwindow->signal_sample_ref_changed().connect(
230          gigedit->signal_sample_ref_changed().make_slot()          gigedit->signal_sample_ref_changed().make_slot()
231      );      );
232        mainwindow->signal_keyboard_key_hit().connect(
233            gigedit->signal_keyboard_key_hit().make_slot()
234        );
235        mainwindow->signal_keyboard_key_released().connect(
236            gigedit->signal_keyboard_key_released().make_slot()
237        );
238  }  }
239    
240  } // namespace  } // namespace
# Line 151  int GigEdit::run(int argc, char* argv[]) Line 247  int GigEdit::run(int argc, char* argv[])
247      init_app();      init_app();
248    
249      Gtk::Main kit(argc, argv);      Gtk::Main kit(argc, argv);
250    
251    //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
252    #if (/*HAVE_GETTEXT &&*/ defined(__APPLE__))
253        // Gtk::Main binds the gtk locale to a possible non-existent
254        // directory. If we have bundled gtk locale files, we rebind here,
255        // after the Gtk::Main constructor.
256        if (!gigedit_localedir.empty()) {
257            bindtextdomain("gtk20", gigedit_localedir.c_str());
258        }
259    #endif
260    
261      MainWindow window;      MainWindow window;
262      connect_signals(this, &window);      connect_signals(this, &window);
263      if (argc >= 2) window.load_file(argv[1]);      if (argc >= 2) window.load_file(argv[1]);
# Line 168  int GigEdit::run(gig::Instrument* pInstr Line 275  int GigEdit::run(gig::Instrument* pInstr
275      return 0;      return 0;
276  }  }
277    
 void GigEdit::add_timeout_job(GigEditJob* job) {  
     GigEditState::timeoutJobs.push_back(job);  
 }  
   
278  void GigEdit::on_note_on_event(int key, int velocity) {  void GigEdit::on_note_on_event(int key, int velocity) {
279      if (!this->state) return;      if (!this->state) return;
280      GigEditState* state = (GigEditState*) this->state;      GigEditState* state = (GigEditState*) this->state;
# Line 216  sigc::signal<void, gig::DimensionRegion* Line 319  sigc::signal<void, gig::DimensionRegion*
319      return dimreg_changed_signal;      return dimreg_changed_signal;
320  }  }
321    
322    sigc::signal<void, gig::Sample*>& GigEdit::signal_sample_changed() {
323        return sample_changed_signal;
324    }
325    
326  sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/>& GigEdit::signal_sample_ref_changed() {  sigc::signal<void, gig::Sample*/*old*/, gig::Sample*/*new*/>& GigEdit::signal_sample_ref_changed() {
327      return sample_ref_changed_signal;      return sample_ref_changed_signal;
328  }  }
329    
330    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_hit() {
331        return keyboard_key_hit_signal;
332    }
333    
334    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_released() {
335        return keyboard_key_released_signal;
336    }
337    
338    #ifdef OLD_THREADS
339  Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;  Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;
340    #else
341    Glib::Threads::Mutex GigEditState::mutex;
342    #endif
343  Glib::Dispatcher* GigEditState::dispatcher = 0;  Glib::Dispatcher* GigEditState::dispatcher = 0;
344  GigEditState* GigEditState::current = 0;  GigEditState* GigEditState::current = 0;
 std::vector<GigEditJob*> GigEditState::timeoutJobs;  
345    
346  void GigEditState::open_window_static() {  void GigEditState::open_window_static() {
347      GigEditState* c = GigEditState::current;      GigEditState* c = GigEditState::current;
# Line 253  void GigEditState::main_loop_run(Cond* i Line 370  void GigEditState::main_loop_run(Cond* i
370      const char* argv_c[] = { "gigedit" };      const char* argv_c[] = { "gigedit" };
371      char** argv = const_cast<char**>(argv_c);      char** argv = const_cast<char**>(argv_c);
372      Gtk::Main main_loop(argc, argv);      Gtk::Main main_loop(argc, argv);
373    //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
374    #if (/*HAVE_GETTEXT &&*/ defined(__APPLE__))
375        if (!gigedit_localedir.empty()) {
376            bindtextdomain("gtk20", gigedit_localedir.c_str());
377        }
378    #endif
379    
380      dispatcher = new Glib::Dispatcher();      dispatcher = new Glib::Dispatcher();
381      dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));      dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));
382      initialized->signal();      initialized->signal();
383    
     for (int i = 0; i < GigEditState::timeoutJobs.size(); i++) {  
         GigEditJob* job = timeoutJobs[i];  
         const Glib::RefPtr<Glib::TimeoutSource> timeout_source =  
             Glib::TimeoutSource::create(job->msecs());  
         timeout_source->connect(  
             sigc::mem_fun(*job, &GigEditJob::runGigEditJob)  
         );  
         timeout_source->attach(Glib::MainContext::get_default());  
     }  
   
384      main_loop.run();      main_loop.run();
385  }  }
386    
387    #if defined(__APPLE__)
388    
389    void GigEditState::runInCFMainLoop(void* info) {
390        printf("runInCFMainLoop() entered\n"); fflush(stdout);
391        GigEditState* state = static_cast<GigEditState*>(info);
392        state->main_loop_run(
393            &state->initialized
394        );
395        printf("runInCFMainLoop() left\n"); fflush(stdout);
396    }
397    
398    #endif // __APPLE__
399    
400  void GigEditState::run(gig::Instrument* pInstrument) {  void GigEditState::run(gig::Instrument* pInstrument) {
401      mutex.lock(); // lock access to static variables      mutex.lock(); // lock access to static variables
402    
403      static bool main_loop_started = false;      static bool main_loop_started = false;
404      if (!main_loop_started) {      if (!main_loop_started) {
405          Cond initialized;  #if defined(__APPLE__)
406            // spawn GUI on main thread :
407            //     On OS X the Gtk GUI can only be launched on a process's "main"
408            //     thread. When trying to launch the Gtk GUI on any other thread,
409            //     there will only be a white box, because the GUI would not receive
410            //     any events, since it would listen to the wrong system event loop.
411            //     So far we haven't investigated whether there is any kind of
412            //     circumvention to allow doing that also on other OS X threads.
413            {
414                // In case the sampler was launched as standalone sampler (not as
415                // plugin), use the following global callback variable hack ...
416                if (g_mainThreadCallbackSupported) {
417                    printf("Setting callback ...\n"); fflush(stdout);
418                    g_mainThreadCallback = runInCFMainLoop;
419                    g_mainThreadCallbackInfo = this;
420                    g_fireMainThreadCallback = true;
421                    printf("Callback variables set.\n"); fflush(stdout);
422                } else { // Sampler was launched as (i.e. AU / VST) plugin ...
423                    // When the sampler was launched as plugin, we have no idea
424                    // whether any sampler thread is the process's "main" thread.
425                    // So that's why we are trying to use Apple's API for trying to
426                    // launch our callback function on the process's main thread.
427                    // However this will only work, if the plugin host application
428                    // established a CF event loop, that is if the application is
429                    // using Cocoa for its GUI. For other host applications the
430                    // callback will never be executed and thus gigedit would not
431                    // popup.
432                    
433                    // should be pretty much the same as the Objective-C solution below with macHelperRunCFuncOnMainThread()
434                    /*CFRunLoopSourceContext sourceContext = CFRunLoopSourceContext();
435                    sourceContext.info = this;
436                    sourceContext.perform = runInCFMainLoop;
437                    printf("CFRunLoopSourceCreate\n"); fflush(stdout);
438                    CFRunLoopSourceRef source = CFRunLoopSourceCreate(
439                        kCFAllocatorDefault, // allocator
440                        1, // priority
441                        &sourceContext
442                    );
443                    printf("CFRunLoopAddSource\n"); fflush(stdout);
444                    CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode);
445                    CFRelease(source);*/
446                    
447                    // use Apple's Objective-C API to call our callback function
448                    // 'runInCFMainLoop()' on the process's "main" thread
449                    macHelperRunCFuncOnMainThread(runInCFMainLoop, this);
450                }
451            }
452    #else
453      #ifdef OLD_THREADS
454          Glib::Thread::create(          Glib::Thread::create(
455              sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),              sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
456                         &initialized),                         &initialized),
457              false);              false);
458      #else
459            Glib::Threads::Thread::create(
460                sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
461                           &initialized));
462      #endif
463    #endif
464            printf("Waiting for GUI being initialized (on main thread) ....\n"); fflush(stdout);
465          initialized.wait();          initialized.wait();
466            printf("GUI is now initialized. Everything done.\n"); fflush(stdout);
467          main_loop_started = true;          main_loop_started = true;
468      }      }
469      instrument = pInstrument;      instrument = pInstrument;
# Line 291  void GigEditState::run(gig::Instrument* Line 473  void GigEditState::run(gig::Instrument*
473      mutex.unlock();      mutex.unlock();
474      close.wait(); // sleep until window is closed      close.wait(); // sleep until window is closed
475  }  }
476    
477    #if defined(WIN32)
478    extern "C" {
479        BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
480        {
481            switch (reason) {
482            case DLL_PROCESS_ATTACH:
483                gigedit_dll_handle = instance;
484                break;
485            }
486            return TRUE;
487        }
488    }
489    #endif

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