source/graphics/android/display.cpp

   1 #include <msp/core/application.h>
   2 #include <msp/core/mainthread.h>
   3 #include "display.h"
   4 #include "display_private.h"
   5
   6 using namespace std;
   7
   8 namespace Msp {
   9 namespace Graphics {
  10
  11 Display::Display(const string &):
  12         primary_monitor(0)
  13 {
  14         Android::MainThread *thread = reinterpret_cast<Android::MainThread *>(Application::get_data());
  15         if(!thread->is_starting_up())
  16                 throw logic_error("Display must be created during startup");
  17
  18         priv = new Private;
  19         priv->input_queue = 0;
  20         priv->native_window = 0;
  21
  22         thread->signal_native_window_created.connect(sigc::mem_fun(priv, &PlatformDisplayPrivate::native_window_created));
  23         thread->signal_native_window_resized.connect(sigc::mem_fun(priv, &PlatformDisplayPrivate::native_window_resized));
  24         thread->signal_native_window_destroyed.connect(sigc::mem_fun(priv, &PlatformDisplayPrivate::native_window_destroyed));
  25         thread->signal_input_queue_created.connect(sigc::mem_fun(priv, &PlatformDisplayPrivate::input_queue_created));
  26         thread->signal_input_queue_destroyed.connect(sigc::mem_fun(priv, &PlatformDisplayPrivate::input_queue_destroyed));
  27         thread->resume_startup();
  28 }
  29
  30 Display::~Display()
  31 {
  32         delete priv;
  33 }
  34
  35 void Display::set_mode(const VideoMode &, bool)
  36 {
  37         throw runtime_error("video mode switching not supported");
  38 }
  39
  40 bool Display::process_events()
  41 {
  42         MutexLock lock(priv->event_mutex);
  43         if(!priv->input_queue)
  44                 return false;
  45
  46         Window::Event event;
  47         if(!priv->events.empty())
  48         {
  49                 event = priv->events.front();
  50                 priv->events.pop_front();
  51         }
  52         else if(AInputQueue_getEvent(priv->input_queue, &event.aevent)>=0)
  53         {
  54                 if(AInputQueue_preDispatchEvent(priv->input_queue, event.aevent))
  55                         return true;
  56
  57                 event.type = INPUT_EVENT;
  58         }
  59         else
  60                 return false;
  61
  62         bool handled = false;
  63         if(!priv->windows.empty())
  64                 handled = priv->windows.begin()->second->event(event);
  65
  66         if(event.type==INPUT_EVENT)
  67                 AInputQueue_finishEvent(priv->input_queue, event.aevent, handled);
  68         else if(event.type==WINDOW_CREATED)
  69                 priv->window_mutex.lock();
  70         else if(event.type==WINDOW_DESTROYED)
  71                 priv->window_mutex.unlock();
  72
  73         return true;
  74 }
  75
  76 void Display::check_error()
  77 {
  78 }
  79
  80
  81 void PlatformDisplayPrivate::push_event(Msp::Graphics::AndroidEventType type)
  82 {
  83         MutexLock lock(event_mutex);
  84         Window::Event event;
  85         event.type = type;
  86         events.push_back(event);
  87 }
  88
  89 void PlatformDisplayPrivate::native_window_created(ANativeWindow *window)
  90 {
  91         native_window = window;
  92         push_event(WINDOW_CREATED);
  93 }
  94
  95 void PlatformDisplayPrivate::native_window_resized(ANativeWindow *)
  96 {
  97         push_event(WINDOW_RESIZED);
  98 }
  99
 100 void PlatformDisplayPrivate::native_window_destroyed(ANativeWindow *)
 101 {
 102         push_event(WINDOW_DESTROYED);
 103         MutexLock lock(window_mutex);
 104         native_window = 0;
 105 }
 106
 107 void PlatformDisplayPrivate::input_queue_created(AInputQueue *queue)
 108 {
 109         MutexLock lock(event_mutex);
 110         input_queue = queue;
 111 }
 112
 113 void PlatformDisplayPrivate::input_queue_destroyed(AInputQueue *)
 114 {
 115         MutexLock lock(event_mutex);
 116         input_queue = 0;
 117 }
 118 } // namespace Graphics
 119 } // namespace Msp