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

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revision 1656 by schoenebeck, Sat Feb 2 08:18:19 2008 UTC revision 2841 by persson, Sun Aug 30 10:00:49 2015 UTC
# Line 1  Line 1 
1  /*  /*
2   * Copyright (C) 2007, 2008 Andreas Persson   * Copyright (C) 2007-2015 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 17  Line 17 
17   * 02110-1301 USA.   * 02110-1301 USA.
18   */   */
19    
20    #include <glibmmconfig.h>
21    // threads.h must be included first to be able to build with
22    // G_DISABLE_DEPRECATED
23    #if (GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION == 31 && GLIBMM_MICRO_VERSION >= 2) || \
24        (GLIBMM_MAJOR_VERSION == 2 && GLIBMM_MINOR_VERSION > 31) || GLIBMM_MAJOR_VERSION > 2
25    #include <glibmm/threads.h>
26    #endif
27    
28  #include "gigedit.h"  #include "gigedit.h"
29    
30  #include <gtkmm/main.h>  #include <glibmm/dispatcher.h>
31  #include <glibmm/main.h>  #include <glibmm/main.h>
32    #include <gtkmm/main.h>
33    
34    #if defined(__APPLE__)
35    # include <CoreFoundation/CoreFoundation.h>
36    # include "MacHelper.h"
37    #endif
38    
39  #include "mainwindow.h"  #include "mainwindow.h"
40    
41  #include "global.h"  #include "global.h"
42    
43    #ifdef __APPLE__
44    #include <dlfcn.h>
45    #include <glibmm/fileutils.h>
46    #include <glibmm/miscutils.h>
47    #endif
48    
49    //TODO: (hopefully) just a temporary nasty hack for launching gigedit on the main thread on Mac (see comments below in this file for details)
50    #if defined(__APPLE__) && HAVE_LINUXSAMPLER // the following global external variables are defined in LinuxSampler's global_private.cpp ...
51    extern bool g_mainThreadCallbackSupported;
52    extern void (*g_mainThreadCallback)(void* info);
53    extern void* g_mainThreadCallbackInfo;
54    extern bool g_fireMainThreadCallback;
55    #endif
56    
57  namespace {  namespace {
58    
59  // State for a gigedit thread.  // State for a gigedit thread.
# Line 37  namespace { Line 66  namespace {
66  //  //
67  class GigEditState : public sigc::trackable {  class GigEditState : public sigc::trackable {
68  public:  public:
69      GigEditState(GigEdit* parent) : parent(parent) { }      GigEditState(GigEdit* parent) :
70            window(0), parent(parent), instrument(0) { }
71      void run(gig::Instrument* pInstrument);      void run(gig::Instrument* pInstrument);
72    
73      MainWindow* window;      MainWindow* window;
# Line 48  private: Line 78  private:
78      class Cond {      class Cond {
79      private:      private:
80          bool pred;          bool pred;
81          Glib::Mutex mutex;          Glib::Threads::Mutex mutex;
82          Glib::Cond cond;          Glib::Threads::Cond cond;
83      public:      public:
84          Cond() : pred(false) { }          Cond() : pred(false) { }
85          void signal() {          void signal() {
86              Glib::Mutex::Lock lock(mutex);              Glib::Threads::Mutex::Lock lock(mutex);
87              pred = true;              pred = true;
88              cond.signal();              cond.signal();
89          }          }
90          void wait() {          void wait() {
91              Glib::Mutex::Lock lock(mutex);              Glib::Threads::Mutex::Lock lock(mutex);
92              while (!pred) cond.wait(mutex);              while (!pred) cond.wait(mutex);
93          }          }
94      };      };
95    
96    #ifdef OLD_THREADS
97      static Glib::StaticMutex mutex;      static Glib::StaticMutex mutex;
98    #else
99        static Glib::Threads::Mutex mutex;
100    #endif
101      static Glib::Dispatcher* dispatcher;      static Glib::Dispatcher* dispatcher;
102      static GigEditState* current;      static GigEditState* current;
103    
# Line 73  private: Line 107  private:
107      GigEdit* parent;      GigEdit* parent;
108      Cond open;      Cond open;
109      Cond close;      Cond close;
110        Cond initialized;
111      gig::Instrument* instrument;      gig::Instrument* instrument;
112    
113      void open_window();      void open_window();
114      void close_window();      void close_window();
115    #if defined(__APPLE__)
116        static void runInCFMainLoop(void* info);
117    #endif
118  };  };
119    
120    #ifdef WIN32
121    HINSTANCE gigedit_dll_handle = 0;
122    #endif
123    
124    #ifdef __APPLE__
125    std::string gigedit_localedir;
126    #endif
127    
128  void init_app() {  void init_app() {
129      static bool process_initialized = false;      static bool process_initialized = false;
130      if (!process_initialized) {      if (!process_initialized) {
# Line 86  void init_app() { Line 132  void init_app() {
132                    << std::flush;                    << std::flush;
133          setlocale(LC_ALL, "");          setlocale(LC_ALL, "");
134    
135  #if HAVE_GETTEXT  #ifdef __APPLE__
136            // Look for pango.modules, gdk-pixbuf.loaders and locale files
137            // under the same dir as the gigedit dylib is installed in.
138            Dl_info info;
139            if (dladdr((void*)&init_app, &info)) {
140                std::string libdir = Glib::path_get_dirname(info.dli_fname);
141    
142                if (Glib::getenv("PANGO_SYSCONFDIR") == "" &&
143                    Glib::file_test(Glib::build_filename(libdir,
144                                                         "pango/pango.modules"),
145                                    Glib::FILE_TEST_EXISTS)) {
146                    Glib::setenv("PANGO_SYSCONFDIR", libdir, true);
147                }
148                if (Glib::getenv("GDK_PIXBUF_MODULE_FILE") == "") {
149                    std::string module_file =
150                        Glib::build_filename(libdir,
151                                             "gtk-2.0/gdk-pixbuf.loaders");
152                    if (Glib::file_test(module_file, Glib::FILE_TEST_EXISTS)) {
153                        Glib::setenv("GDK_PIXBUF_MODULE_FILE", module_file, true);
154                    }
155                }
156      //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
157      //#if HAVE_GETTEXT
158                std::string localedir = Glib::build_filename(libdir, "locale");
159                if (Glib::file_test(localedir, Glib::FILE_TEST_EXISTS)) {
160                    gigedit_localedir = localedir;
161                    bindtextdomain(GETTEXT_PACKAGE, gigedit_localedir.c_str());
162                } else {
163                    bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
164                }
165      //#endif
166            }
167    
168            // The gtk file dialog stores its recent files state in
169            // ~/.local/share
170            g_mkdir_with_parents(
171                Glib::build_filename(Glib::get_home_dir(),
172                                     ".local/share").c_str(), 0777);
173    #endif // __APPLE__
174    
175    //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
176    #if (HAVE_GETTEXT || defined(__APPLE__))
177    
178      #ifdef WIN32
179        #if GLIB_CHECK_VERSION(2, 16, 0)
180            gchar* root =
181                g_win32_get_package_installation_directory_of_module(gigedit_dll_handle);
182        #else
183            gchar* root =
184                g_win32_get_package_installation_directory(NULL, NULL);
185        #endif
186            gchar* temp = g_build_filename(root, "/share/locale", NULL);
187            g_free(root);
188            gchar* localedir = g_win32_locale_filename_from_utf8(temp);
189            g_free(temp);
190            bindtextdomain(GETTEXT_PACKAGE, localedir);
191            g_free(localedir);
192      #elif !defined(__APPLE__)
193          bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);          bindtextdomain(GETTEXT_PACKAGE, LOCALEDIR);
194      #endif
195          bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");          bind_textdomain_codeset(GETTEXT_PACKAGE, "UTF-8");
196          textdomain(GETTEXT_PACKAGE);          textdomain(GETTEXT_PACKAGE);
197  #endif // HAVE_GETTEXT  #endif // HAVE_GETTEXT
198    
199    #ifdef OLD_THREADS
200          // make sure thread_init() is called once and ONLY once per process          // make sure thread_init() is called once and ONLY once per process
201          if (!Glib::thread_supported()) Glib::thread_init();          if (!Glib::thread_supported()) Glib::thread_init();
202    #endif
203          process_initialized = true;          process_initialized = true;
204      }      }
205  }  }
# Line 127  void connect_signals(GigEdit* gigedit, M Line 232  void connect_signals(GigEdit* gigedit, M
232      mainwindow->signal_dimreg_changed().connect(      mainwindow->signal_dimreg_changed().connect(
233          gigedit->signal_dimreg_changed().make_slot()          gigedit->signal_dimreg_changed().make_slot()
234      );      );
235        mainwindow->signal_sample_changed().connect(
236            gigedit->signal_sample_changed().make_slot()
237        );
238      mainwindow->signal_sample_ref_changed().connect(      mainwindow->signal_sample_ref_changed().connect(
239          gigedit->signal_sample_ref_changed().make_slot()          gigedit->signal_sample_ref_changed().make_slot()
240      );      );
241        mainwindow->signal_keyboard_key_hit().connect(
242            gigedit->signal_keyboard_key_hit().make_slot()
243        );
244        mainwindow->signal_keyboard_key_released().connect(
245            gigedit->signal_keyboard_key_released().make_slot()
246        );
247        mainwindow->signal_switch_sampler_instrument().connect(
248            gigedit->signal_switch_sampler_instrument().make_slot()
249        );
250  }  }
251    
252  } // namespace  } // namespace
# Line 142  int GigEdit::run(int argc, char* argv[]) Line 259  int GigEdit::run(int argc, char* argv[])
259      init_app();      init_app();
260    
261      Gtk::Main kit(argc, argv);      Gtk::Main kit(argc, argv);
262    
263    //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
264    #if (/*HAVE_GETTEXT &&*/ defined(__APPLE__))
265        // Gtk::Main binds the gtk locale to a possible non-existent
266        // directory. If we have bundled gtk locale files, we rebind here,
267        // after the Gtk::Main constructor.
268        if (!gigedit_localedir.empty()) {
269            bindtextdomain("gtk20", gigedit_localedir.c_str());
270        }
271    #endif
272    
273      MainWindow window;      MainWindow window;
274      connect_signals(this, &window);      connect_signals(this, &window);
275      if (argc >= 2) window.load_file(argv[1]);      if (argc >= 2) window.load_file(argv[1]);
# Line 161  int GigEdit::run(gig::Instrument* pInstr Line 289  int GigEdit::run(gig::Instrument* pInstr
289    
290  void GigEdit::on_note_on_event(int key, int velocity) {  void GigEdit::on_note_on_event(int key, int velocity) {
291      if (!this->state) return;      if (!this->state) return;
292      GigEditState* state = (GigEditState*) this->state;      GigEditState* state = static_cast<GigEditState*>(this->state);
293      state->window->signal_note_on().emit(key, velocity);      state->window->signal_note_on().emit(key, velocity);
294  }  }
295    
296  void GigEdit::on_note_off_event(int key, int velocity) {  void GigEdit::on_note_off_event(int key, int velocity) {
297      if (!this->state) return;      if (!this->state) return;
298      GigEditState* state = (GigEditState*) this->state;      GigEditState* state = static_cast<GigEditState*>(this->state);
299      state->window->signal_note_off().emit(key, velocity);      state->window->signal_note_off().emit(key, velocity);
300  }  }
301    
# Line 203  sigc::signal<void, gig::DimensionRegion* Line 331  sigc::signal<void, gig::DimensionRegion*
331      return dimreg_changed_signal;      return dimreg_changed_signal;
332  }  }
333    
334    sigc::signal<void, gig::Sample*>& GigEdit::signal_sample_changed() {
335        return sample_changed_signal;
336    }
337    
338  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() {
339      return sample_ref_changed_signal;      return sample_ref_changed_signal;
340  }  }
341    
342    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_hit() {
343        return keyboard_key_hit_signal;
344    }
345    
346    sigc::signal<void, int/*key*/, int/*velocity*/>& GigEdit::signal_keyboard_key_released() {
347        return keyboard_key_released_signal;
348    }
349    
350    sigc::signal<void, gig::Instrument*>& GigEdit::signal_switch_sampler_instrument() {
351        return switch_sampler_instrument_signal;
352    }
353    
354    #ifdef OLD_THREADS
355  Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;  Glib::StaticMutex GigEditState::mutex = GLIBMM_STATIC_MUTEX_INIT;
356    #else
357    Glib::Threads::Mutex GigEditState::mutex;
358    #endif
359  Glib::Dispatcher* GigEditState::dispatcher = 0;  Glib::Dispatcher* GigEditState::dispatcher = 0;
360  GigEditState* GigEditState::current = 0;  GigEditState* GigEditState::current = 0;
361    
# Line 239  void GigEditState::main_loop_run(Cond* i Line 386  void GigEditState::main_loop_run(Cond* i
386      const char* argv_c[] = { "gigedit" };      const char* argv_c[] = { "gigedit" };
387      char** argv = const_cast<char**>(argv_c);      char** argv = const_cast<char**>(argv_c);
388      Gtk::Main main_loop(argc, argv);      Gtk::Main main_loop(argc, argv);
389    //FIXME: for some reason AC GETTEXT check fails on the Mac cross compiler?
390    #if (/*HAVE_GETTEXT &&*/ defined(__APPLE__))
391        if (!gigedit_localedir.empty()) {
392            bindtextdomain("gtk20", gigedit_localedir.c_str());
393        }
394    #endif
395    
396      dispatcher = new Glib::Dispatcher();      dispatcher = new Glib::Dispatcher();
397      dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));      dispatcher->connect(sigc::ptr_fun(&GigEditState::open_window_static));
# Line 247  void GigEditState::main_loop_run(Cond* i Line 400  void GigEditState::main_loop_run(Cond* i
400      main_loop.run();      main_loop.run();
401  }  }
402    
403    #if defined(__APPLE__)
404    
405    void GigEditState::runInCFMainLoop(void* info) {
406        printf("runInCFMainLoop() entered\n"); fflush(stdout);
407        GigEditState* state = static_cast<GigEditState*>(info);
408        state->main_loop_run(
409            &state->initialized
410        );
411        printf("runInCFMainLoop() left\n"); fflush(stdout);
412    }
413    
414    #endif // __APPLE__
415    
416  void GigEditState::run(gig::Instrument* pInstrument) {  void GigEditState::run(gig::Instrument* pInstrument) {
417      mutex.lock(); // lock access to static variables      mutex.lock(); // lock access to static variables
418    
419      static bool main_loop_started = false;      static bool main_loop_started = false;
420        instrument = pInstrument;
421      if (!main_loop_started) {      if (!main_loop_started) {
422          Cond initialized;  #if defined(__APPLE__) && HAVE_LINUXSAMPLER
423            // spawn GUI on main thread :
424            //     On OS X the Gtk GUI can only be launched on a process's "main"
425            //     thread. When trying to launch the Gtk GUI on any other thread,
426            //     there will only be a white box, because the GUI would not receive
427            //     any events, since it would listen to the wrong system event loop.
428            //     So far we haven't investigated whether there is any kind of
429            //     circumvention to allow doing that also on other OS X threads.
430            {
431                // In case the sampler was launched as standalone sampler (not as
432                // plugin), use the following global callback variable hack ...
433                if (g_mainThreadCallbackSupported) {
434                    printf("Setting callback ...\n"); fflush(stdout);
435                    g_mainThreadCallback = runInCFMainLoop;
436                    g_mainThreadCallbackInfo = this;
437                    g_fireMainThreadCallback = true;
438                    printf("Callback variables set.\n"); fflush(stdout);
439                } else { // Sampler was launched as (i.e. AU / VST) plugin ...
440                    // When the sampler was launched as plugin, we have no idea
441                    // whether any sampler thread is the process's "main" thread.
442                    // So that's why we are trying to use Apple's API for trying to
443                    // launch our callback function on the process's main thread.
444                    // However this will only work, if the plugin host application
445                    // established a CF event loop, that is if the application is
446                    // using Cocoa for its GUI. For other host applications the
447                    // callback will never be executed and thus gigedit would not
448                    // popup.
449                    
450                    // should be pretty much the same as the Objective-C solution below with macHelperRunCFuncOnMainThread()
451                    /*CFRunLoopSourceContext sourceContext = CFRunLoopSourceContext();
452                    sourceContext.info = this;
453                    sourceContext.perform = runInCFMainLoop;
454                    printf("CFRunLoopSourceCreate\n"); fflush(stdout);
455                    CFRunLoopSourceRef source = CFRunLoopSourceCreate(
456                        kCFAllocatorDefault, // allocator
457                        1, // priority
458                        &sourceContext
459                    );
460                    printf("CFRunLoopAddSource\n"); fflush(stdout);
461                    CFRunLoopAddSource(CFRunLoopGetMain(), source, kCFRunLoopDefaultMode);
462                    CFRelease(source);*/
463                    
464                    // use Apple's Objective-C API to call our callback function
465                    // 'runInCFMainLoop()' on the process's "main" thread
466                    macHelperRunCFuncOnMainThread(runInCFMainLoop, this);
467                }
468            }
469    #else
470      #ifdef OLD_THREADS
471          Glib::Thread::create(          Glib::Thread::create(
472              sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),              sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
473                         &initialized),                         &initialized),
474              false);              false);
475      #else
476            Glib::Threads::Thread::create(
477                sigc::bind(sigc::ptr_fun(&GigEditState::main_loop_run),
478                           &initialized));
479      #endif
480    #endif
481            printf("Waiting for GUI being initialized (on main thread) ....\n"); fflush(stdout);
482          initialized.wait();          initialized.wait();
483            printf("GUI is now initialized. Everything done.\n"); fflush(stdout);
484          main_loop_started = true;          main_loop_started = true;
485      }      }
     instrument = pInstrument;  
486      current = this;      current = this;
487      dispatcher->emit();      dispatcher->emit();
488      open.wait(); // wait until the GUI thread has read current      open.wait(); // wait until the GUI thread has read current
489      mutex.unlock();      mutex.unlock();
490      close.wait(); // sleep until window is closed      close.wait(); // sleep until window is closed
491  }  }
492    
493    #if defined(WIN32)
494    extern "C" {
495        BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
496        {
497            switch (reason) {
498            case DLL_PROCESS_ATTACH:
499                gigedit_dll_handle = instance;
500                break;
501            }
502            return TRUE;
503        }
504    }
505    #endif
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