Add Controller::PlayAudio for Emulator

src/app/core/controller.cc

@@ -168,6 +168,15 @@ void Controller::OnInput() {
 
 void Controller::OnLoad() { PRINT_IF_ERROR(master_editor_.Update()); }
 
+void Controller::PlayAudio() {
+  if (master_editor_.emulator().running()) {
+    master_editor_.emulator().snes().SetSamples(audio_buffer_, wanted_samples_);
+    if (SDL_GetQueuedAudioSize(audio_device_) <= wanted_samples_ * 4 * 6) {
+      SDL_QueueAudio(audio_device_, audio_buffer_, wanted_samples_ * 4);
+    }
+  }
+}
+
 void Controller::DoRender() const {
   ImGui::Render();
   SDL_RenderClear(renderer_.get());

src/app/core/controller.h

@@ -34,6 +34,7 @@ class Controller : public ExperimentFlags {
   absl::Status OnEntry();
   void OnInput();
   void OnLoad();
+  void PlayAudio();
   void DoRender() const;
   void OnExit();
 
@@ -61,7 +62,10 @@ class Controller : public ExperimentFlags {
   friend int ::main(int argc, char **argv);
 
   bool active_;
+  int wanted_samples_;
+  int16_t *audio_buffer_;
   editor::MasterEditor master_editor_;
+  SDL_AudioDeviceID audio_device_;
   std::shared_ptr<SDL_Window> window_;
   std::shared_ptr<SDL_Renderer> renderer_;
 };

src/app/editor/master_editor.h

@@ -63,6 +63,8 @@ class MasterEditor : public SharedRom,
 
   void Shutdown() { overworld_editor_.Shutdown(); }
 
+  auto emulator() -> emu::Emulator& { return emulator_; }
+
  private:
   void DrawFileDialog();
   void DrawStatusPopup();
@@ -101,7 +103,7 @@ class MasterEditor : public SharedRom,
   ScreenEditor screen_editor_;
   SpriteEditor sprite_editor_;
 
-  Editor *current_editor_ = nullptr;
+  Editor* current_editor_ = nullptr;
 };
 
 }  // namespace editor