First round of dead file removal

experimental/conways_life/life_application.cc

Index: experimental/conways_life/life_application.cc
diff --git a/experimental/conways_life/life_application.cc b/experimental/conways_life/life_application.cc
deleted file mode 100644
index 307026589a20667173a81f8e948c62ff619f778e..0000000000000000000000000000000000000000
--- a/experimental/conways_life/life_application.cc
+++ /dev/null
@@ -1,339 +0,0 @@
-// 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.
-
-#include "experimental/conways_life/life_application.h"
-
-#include <algorithm>
-#include <cassert>
-#include <cmath>
-#include <cstdio>
-#include <cstring>
-#include <sstream>
-#include <string>
-
-#include "experimental/conways_life/audio/web_wav_sound_resource.h"
-#include "experimental/conways_life/scoped_pixel_lock.h"
-#include "experimental/conways_life/threading/scoped_mutex_lock.h"
-#include "ppapi/c/pp_errors.h"
-#include "ppapi/cpp/completion_callback.h"
-#include "ppapi/cpp/var.h"
-
-namespace {
-const char* const kClearMethodId = "clear";
-const char* const kPutStampAtPointMethodId = "putStampAtPoint";
-const char* const kRunSimulationMethodId = "runSimulation";
-const char* const kSetAutomatonRulesMethodId = "setAutomatonRules";
-const char* const kSetCurrentStampMethodId = "setCurrentStamp";
-const char* const kSetStampSoundUrlMethodId = "setStampSoundUrl";
-const char* const kStopSimulationMethodId = "stopSimulation";
-
-const int kSimulationTickInterval = 10;  // Measured in msec.
-const uint32_t kBackgroundColor = 0xFFFFFFFF;  // Opaque white.
-
-// Simulation modes.  These strings are matched by the browser script.
-const char* const kRandomSeedModeId = "random_seed";
-const char* const kStampModeId = "stamp";
-
-// Return the value of parameter named |param_name| from |parameters|.  If
-// |param_name| doesn't exist, then return an empty string.
-std::string GetParameterNamed(
-    const std::string& param_name,
-    const scripting::MethodParameter& parameters) {
-  scripting::MethodParameter::const_iterator i =
-      parameters.find(param_name);
-  if (i == parameters.end()) {
-    return "";
-  }
-  return i->second;
-}
-
-// Return the int32_t equivalent of |str|.  All the usual C++ rounding rules
-// apply.
-int32_t StringAsInt32(const std::string& str) {
-  std::istringstream cvt_stream(str);
-  double double_val;
-  cvt_stream >> double_val;
-  return static_cast<int32_t>(double_val);
-}
-
-// Called from the browser when the delay time has elapsed.  This routine
-// runs a simulation update, then reschedules itself to run the next
-// simulation tick.
-void SimulationTickCallback(void* data, int32_t result) {
-  life::LifeApplication* life_app = static_cast<life::LifeApplication*>(data);
-  life_app->Update();
-  if (life_app->is_running()) {
-    pp::Module::Get()->core()->CallOnMainThread(
-        kSimulationTickInterval,
-        pp::CompletionCallback(&SimulationTickCallback, data),
-        PP_OK);
-  }
-}
-
-// Called from the browser when the 2D graphics have been flushed out to the
-// device.
-void FlushCallback(void* data, int32_t result) {
-  static_cast<life::LifeApplication*>(data)->set_flush_pending(false);
-}
-}  // namespace
-
-using scripting::ScriptingBridge;
-
-namespace life {
-LifeApplication::LifeApplication(PP_Instance instance)
-    : pp::Instance(instance),
-      graphics_2d_context_(NULL),
-      flush_pending_(false),
-      view_changed_size_(true),
-      audio_player_(this) {
-}
-
-LifeApplication::~LifeApplication() {
-  life_simulation_.set_is_simulation_running(false);
-  DestroyContext();
-}
-
-bool LifeApplication::Init(uint32_t /* argc */,
-                           const char* /* argn */[],
-                           const char* /* argv */[]) {
-  // Add all the methods to the scripting bridge.
-  ScriptingBridge::SharedMethodCallbackExecutor
-      clear_method(new scripting::MethodCallback<LifeApplication>(
-          this, &LifeApplication::Clear));
-  scripting_bridge_.AddMethodNamed(kClearMethodId, clear_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      put_stamp_method(new scripting::MethodCallback<LifeApplication>(
-          this, &LifeApplication::PutStampAtPoint));
-  scripting_bridge_.AddMethodNamed(kPutStampAtPointMethodId, put_stamp_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      run_sim_method(new scripting::MethodCallback<LifeApplication>(
-          this, &LifeApplication::RunSimulation));
-  scripting_bridge_.AddMethodNamed(kRunSimulationMethodId, run_sim_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      set_auto_rules_method(new scripting::MethodCallback<LifeApplication>(
-          this, &LifeApplication::SetAutomatonRules));
-  scripting_bridge_.AddMethodNamed(kSetAutomatonRulesMethodId,
-                                   set_auto_rules_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      set_stamp_method(new scripting::MethodCallback<LifeApplication>(
-          this, &LifeApplication::SetCurrentStamp));
-  scripting_bridge_.AddMethodNamed(kSetCurrentStampMethodId, set_stamp_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      set_stamp_sound_method(new scripting::MethodCallback<LifeApplication>(
-          this, &LifeApplication::SetStampSoundUrl));
-  scripting_bridge_.AddMethodNamed(kSetStampSoundUrlMethodId,
-                                   set_stamp_sound_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      stop_sim_method(new scripting::MethodCallback<LifeApplication>(
-          this, &LifeApplication::StopSimulation));
-  scripting_bridge_.AddMethodNamed(kStopSimulationMethodId, stop_sim_method);
-
-  life_simulation_.StartSimulation();
-  return true;
-}
-
-void LifeApplication::HandleMessage(const pp::Var& message) {
-  if (!message.is_string())
-    return;
-  scripting_bridge_.InvokeMethod(message.AsString());
-}
-
-void LifeApplication::DidChangeView(const pp::Rect& position,
-                                    const pp::Rect& /* clip */) {
-  if (position.size().width() == width() &&
-      position.size().height() == height())
-    return;  // Size didn't change, no need to update anything.
-  // Indicate that all the buffers need to be resized at the next Update()
-  // call.
-  view_changed_size_ = true;
-  view_size_ = position.size();
-  // Make sure the buffers get changed if the simulation isn't running.
-  if (!is_running())
-    Update();
-}
-
-void LifeApplication::Update() {
-  if (flush_pending())
-    return;  // Don't attempt to flush if one is pending.
-
-  if (view_changed_size_) {
-    // Delete the old pixel buffer and create a new one.
-    // Pause the simulation before changing all the buffer sizes.
-    Life::SimulationMode sim_mode = life_simulation_.simulation_mode();
-    life_simulation_.set_simulation_mode(Life::kPaused);
-    // Create a new device context with the new size.
-    // Note: DestroyContext() releases the simulation's copy of the shared
-    // pixel buffer.  *This has to happen before the reset() below!*  If the
-    // simulation's copy of hte shared pointer is released last, then the
-    // underlying ImageData is released off the main thread, which is not
-    // supported in Pepper.
-    DestroyContext();
-    CreateContext(view_size_);
-    threading::ScopedMutexLock scoped_mutex(
-        life_simulation_.simulation_mutex());
-    if (!scoped_mutex.is_valid())
-      // This potentially leaves the simulation in a paused state, but getting
-      // here means something is very wrong and the simulation probably can't
-      // run anyways.
-      return;
-    life_simulation_.DeleteCells();
-    if (graphics_2d_context_ != NULL) {
-      shared_pixel_buffer_.reset(
-          new LockingImageData(this,
-                               PP_IMAGEDATAFORMAT_BGRA_PREMUL,
-                               graphics_2d_context_->size(),
-                               false));
-      set_flush_pending(false);
-      // Ok to get a non-locked version because the simulation is guraranteed
-      // to be paused here.
-      uint32_t* pixels = shared_pixel_buffer_->PixelBufferNoLock();
-      if (pixels) {
-        const size_t size = width() * height();
-        std::fill(pixels, pixels + size, kBackgroundColor);
-      }
-      life_simulation_.Resize(width(), height());
-      life_simulation_.set_pixel_buffer(shared_pixel_buffer_);
-      life_simulation_.set_simulation_mode(sim_mode);
-    }
-    view_changed_size_ = false;
-  }
-  FlushPixelBuffer();
-}
-
-void LifeApplication::SetCurrentStamp(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  std::string stamp_desc = GetParameterNamed("description", parameters);
-  if (stamp_desc.length()) {
-    stamp_.InitFromDescription(stamp_desc);
-  }
-}
-
-void LifeApplication::Clear(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  // Temporarily pause the the simulation while clearing the buffers.
-  volatile Life::SimulationMode sim_mode = life_simulation_.simulation_mode();
-  if (sim_mode != Life::kPaused)
-    life_simulation_.set_simulation_mode(Life::kPaused);
-  life_simulation_.ClearCells();
-  ScopedPixelLock scoped_pixel_lock(shared_pixel_buffer_);
-  uint32_t* pixel_buffer = scoped_pixel_lock.pixels();
-  if (pixel_buffer) {
-    const size_t size = width() * height();
-    std::fill(pixel_buffer,
-              pixel_buffer + size,
-              kBackgroundColor);
-  }
-  Update();  // Flushes the buffer correctly.
-  if (sim_mode != Life::kPaused)
-    life_simulation_.set_simulation_mode(sim_mode);
-}
-
-void LifeApplication::SetAutomatonRules(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  std::string rules = GetParameterNamed("rules", parameters);
-  if (rules.length()) {
-    life_simulation_.SetAutomatonRules(rules);
-  }
-}
-
-void LifeApplication::RunSimulation(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  std::string sim_mode = GetParameterNamed("mode", parameters);
-  if (sim_mode.length() == 0) {
-    return;
-  }
-  if (sim_mode == kRandomSeedModeId) {
-    life_simulation_.set_simulation_mode(life::Life::kRunRandomSeed);
-  } else {
-    life_simulation_.set_simulation_mode(life::Life::kRunStamp);
-  }
-  // Schedule a simulation tick to get things going.
-  pp::Module::Get()->core()->CallOnMainThread(
-      kSimulationTickInterval,
-      pp::CompletionCallback(&SimulationTickCallback, this),
-      PP_OK);
-}
-
-void LifeApplication::StopSimulation(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  // This will pause the simulation on the next tick.
-  life_simulation_.set_simulation_mode(life::Life::kPaused);
-}
-
-void LifeApplication::PutStampAtPoint(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  std::string x_coord = GetParameterNamed("x", parameters);
-  std::string y_coord = GetParameterNamed("y", parameters);
-  if (x_coord.length() == 0 || y_coord.length() == 0) {
-    return;
-  }
-  int32_t x = StringAsInt32(x_coord);
-  int32_t y = StringAsInt32(y_coord);
-  life_simulation_.PutStampAtPoint(stamp_, pp::Point(x, y));
-  // Play the stamp sound.
-  if (audio_player_.IsReady())
-    audio_player_.Play();
-  // If the simulation isn't running, make sure the stamp shows up.
-  if (!is_running())
-    Update();
-}
-
-void LifeApplication::SetStampSoundUrl(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  std::string sound_url = GetParameterNamed("soundUrl", parameters);
-  if (sound_url.length() == 0) {
-    return;
-  }
-  audio::WebWavSoundResource* sound = new audio::WebWavSoundResource();
-  sound->Init(sound_url, this);
-  // |audio_player_| takes ownership of |sound| and is responsible for
-  // deleting it.
-  audio_player_.AssignAudioSource(sound);
-}
-
-void LifeApplication::CreateContext(const pp::Size& size) {
-  if (IsContextValid())
-    return;
-  graphics_2d_context_ = new pp::Graphics2D(this, size, false);
-  if (!BindGraphics(*graphics_2d_context_)) {
-    printf("Couldn't bind the device context\n");
-  }
-}
-
-void LifeApplication::DestroyContext() {
-  threading::ScopedMutexLock scoped_mutex(life_simulation_.simulation_mutex());
-  if (!scoped_mutex.is_valid()) {
-    return;
-  }
-  ScopedPixelLock scoped_pixel_lock(shared_pixel_buffer_);
-  shared_pixel_buffer_.reset();
-  life_simulation_.set_pixel_buffer(shared_pixel_buffer_);
-  if (!IsContextValid())
-    return;
-  delete graphics_2d_context_;
-  graphics_2d_context_ = NULL;
-}
-
-void LifeApplication::FlushPixelBuffer() {
-  if (!IsContextValid() || shared_pixel_buffer_ == NULL)
-    return;
-  set_flush_pending(true);
-  graphics_2d_context_->PaintImageData(*shared_pixel_buffer_, pp::Point());
-  graphics_2d_context_->Flush(pp::CompletionCallback(&FlushCallback, this));
-}
-}  // namespace life
-