First round of dead file removal

experimental/conways_life/life_application.h

-// Copyright (c) 2011 The Native Client Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef LIFE_APPLICATION_H_
-#define LIFE_APPLICATION_H_
-
-#include <cstdlib>
-#include <map>
-#include <memory>
-#include <tr1/memory>
-#include <vector>
-
-#include "experimental/conways_life/audio/audio_player.h"
-#include "experimental/conways_life/life.h"
-#include "experimental/conways_life/locking_image_data.h"
-#include "experimental/conways_life/scripting/scripting_bridge.h"
-#include "experimental/conways_life/stamp.h"
-#include "experimental/conways_life/threading/pthread_ext.h"
-#include "experimental/conways_life/threading/condition_lock.h"
-#include "ppapi/cpp/graphics_2d.h"
-#include "ppapi/cpp/instance.h"
-#include "ppapi/cpp/rect.h"
-#include "ppapi/cpp/size.h"
-
-namespace life {
-// The main object that runs Conway's Life simulation (for details, see:
-// http://en.wikipedia.org/wiki/Conway's_Game_of_Life).  This class holds all
-// the Pepper objects (the 2D context and the instance) required to interface
-// with the browser.  It also owns an instance of the simulation object.
-class LifeApplication : public pp::Instance {
- public:
-  // The states for the |sim_state_condition_| condition lock.
-  enum SimulationState {
-    kStopped,
-    kRunning
-  };
-
-  explicit LifeApplication(PP_Instance instance);
-  virtual ~LifeApplication();
-
-  // Called by the browser when the NaCl module is loaded and all ready to go.
-  virtual bool Init(uint32_t argc, const char* argn[], const char* argv[]);
-
-  // Update the graphics context to the new size, and reallocate all new
-  // buffers to the new size.
-  virtual void DidChangeView(const pp::Rect& position, const pp::Rect& clip);
-
-  // Called by the browser to handle the postMessage() call in Javascript.
-  virtual void HandleMessage(const pp::Var& message);
-
-  // Runs a tick of the simulations, updating all buffers.  Flushes the
-  // contents of |pixel_buffer_| to the 2D graphics context.
-  void Update();
-
-  // Replace the current stamp.  See stamp.h for a description of the stamp
-  // format.  Exposed to the browser as "setCurrentStamp".  Takes a parameter
-  // named "description" that contains the string-encoded stamp description.
-  void SetCurrentStamp(const scripting::ScriptingBridge& bridge,
-                       const scripting::MethodParameter& parameters);
-
-  // Set the automaton rules.  The rules are expressed as a string, with the
-  // Birth and Keep Alive rules separated by a '/'.  The format follows the .LIF
-  // 1.05 format here: http://psoup.math.wisc.edu/mcell/ca_files_formats.html
-  // Survival/Birth.  Exposed to the browser as "setAutomatonRules".
-  // Takes a single parameter named "rules".
-  void SetAutomatonRules(const scripting::ScriptingBridge& bridge,
-                         const scripting::MethodParameter& parameters);
-
-  // Clears the current simulation (resets back to all-dead, graphics buffer to
-  // black).  Exposed to the browser as "clear()".  |args| can be empty.
-  void Clear(const scripting::ScriptingBridge& bridge,
-             const scripting::MethodParameter& parameters);
-
-  // Plot a new blob of life centered around the (x, y) coordinates described
-  // in |parameters|.  This method is exposed to the browser as
-  // "putStampAtPoint", it takes a parameter named "x" and one named "y".
-  void PutStampAtPoint(const scripting::ScriptingBridge& bridge,
-                       const scripting::MethodParameter& parameters);
-
-  // Run the simulation in the specified mode.  If the mode is changed, then
-  // the simulation is stopped and restarted in the new mode.  Takes one
-  // parameter named "mode" which can be one of "random_seed" or "stamp".
-  // Exposed to the browser as "runSimulation".
-  void RunSimulation(const scripting::ScriptingBridge& bridge,
-                     const scripting::MethodParameter& parameters);
-
-  // Stop the simulation.  Does nothing if the simulation is stopped.
-  // Exposed to the browser as "stopSimulation".  Takes no parameters.
-  void StopSimulation(const scripting::ScriptingBridge& bridge,
-                      const scripting::MethodParameter& parameters);
-
-  // Set the URL used to get the stamp sound.  Takes one parameter named
-  // "soundUrl" that is the URL of the sound file.  Does not affect a
-  // stamp sound that is currently playing, but can affect all subsequent plays
-  // of the stamp sound.  If there are errors fetching the sound data from
-  // |soundUrl|, then the stamp sound is left unchanged.  Exposed to the browser
-  // as "setStampSoundUrl".
-  void SetStampSoundUrl(const scripting::ScriptingBridge& bridge,
-                        const scripting::MethodParameter& parameters);
-
-  int width() const {
-    return shared_pixel_buffer_ ? shared_pixel_buffer_->size().width() : 0;
-  }
-  int height() const {
-    return shared_pixel_buffer_ ? shared_pixel_buffer_->size().height() : 0;
-  }
-
-  // Indicate whether the simulation is running or paused.
-  bool is_running() const {
-    return life_simulation_.simulation_mode() != life::Life::kPaused;
-  }
-
-  // Indicate whether a flush is pending.  This can only be called from the
-  // main thread; it is not thread safe.
-  bool flush_pending() const {
-    return flush_pending_;
-  }
-  void set_flush_pending(bool flag) {
-    flush_pending_ = flag;
-  }
-
- private:
-  // Create and initialize the 2D context used for drawing.
-  void CreateContext(const pp::Size& size);
-  // Destroy the 2D drawing context.
-  void DestroyContext();
-  // Push the pixels to the browser, then attempt to flush the 2D context.  If
-  // there is a pending flush on the 2D context, then update the pixels only
-  // and do not flush.
-  void FlushPixelBuffer();
-  // Return a pointer to the pixels without acquiring the pixel buffer lock.
-  uint32_t* PixelBufferNoLock();
-
-  bool IsContextValid() const {
-    return graphics_2d_context_ != NULL;
-  }
-
-  // Browser connectivity and scripting support.
-  scripting::ScriptingBridge scripting_bridge_;
-
-  // The simulation.
-  Life life_simulation_;
-
-  // 2D context variables.
-  std::tr1::shared_ptr<LockingImageData> shared_pixel_buffer_;
-  pp::Graphics2D* graphics_2d_context_;
-  bool flush_pending_;
-  bool view_changed_size_;
-  pp::Size view_size_;
-
-  // The current stamp.  The dictionary of stamps is kept in the browser.
-  Stamp stamp_;
-
-  // Audio.
-  audio::AudioPlayer audio_player_;
-};
-
-}  // namespace life
-
-#endif  // LIFE_APPLICATION_H_
-