First round of dead file removal

experimental/flocking_geese/nacl_app/flocking_geese_app.cc

Index: experimental/flocking_geese/nacl_app/flocking_geese_app.cc
diff --git a/experimental/flocking_geese/nacl_app/flocking_geese_app.cc b/experimental/flocking_geese/nacl_app/flocking_geese_app.cc
deleted file mode 100644
index b09ad9f2535ea5fa771eb610673c8e721620135c..0000000000000000000000000000000000000000
--- a/experimental/flocking_geese/nacl_app/flocking_geese_app.cc
+++ /dev/null
@@ -1,297 +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 "flocking_geese_app.h"
-
-#include <algorithm>
-#include <sstream>
-#include <string>
-#include "nacl_app/scoped_pixel_lock.h"
-#include "ppapi/c/pp_errors.h"
-#include "ppapi/cpp/completion_callback.h"
-#include "ppapi/cpp/module.h"
-#include "threading/scoped_mutex_lock.h"
-#include "url_io/url_request.h"
-#include "url_io/web_resource_loader.h"
-
-namespace {
-// Input method and parameter Ids.  These correspond to C++ calls.
-const char* const kResetFlockMethodId = "resetFlock";
-const char* const kRunSimulationMethodId = "runSimulation";
-const char* const kPauseSimulationMethodId = "pauseSimulation";
-const char* const kSetAttractorLocMethodId = "setAttractorLocation";
-
-// Output method and parameter Ids.  These correspond to methods in the
-// browser.
-const char* const kSetSimulationInfoMethodId = "setSimulationInfo";
-const char* const kFrameRateParamId = "frameRate";
-
-const int kSimulationTickInterval = 10;  // Measured in msec.
-const uint32_t kBackgroundColor = 0xFFFFFFFF;  // Opaque white.
-
-// 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) {
-  flocking_geese::FlockingGeeseApp* geese_app =
-      static_cast<flocking_geese::FlockingGeeseApp*>(data);
-  // Flush the graphics so far and post the current frame rate.
-  geese_app->PostSimulationInfo();
-  geese_app->Update();
-  if (geese_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<flocking_geese::FlockingGeeseApp*>(data)->
-      set_flush_pending(false);
-}
-}  // namespace
-
-using scripting::ScriptingBridge;
-
-namespace flocking_geese {
-
-FlockingGeeseApp::FlockingGeeseApp(PP_Instance instance)
-    : pp::Instance(instance),
-      graphics_2d_context_(NULL),
-      flush_pending_(false),
-      view_changed_size_(true) {
-}
-
-FlockingGeeseApp::~FlockingGeeseApp() {
-  flock_simulation_.set_is_simulation_running(false);
-  DestroyContext();
-}
-
-bool FlockingGeeseApp::Init(uint32_t /* argc */,
-                            const char* /* argn */[],
-                            const char* /* argv */[]) {
-  // Add all the methods to the scripting bridge.
-  ScriptingBridge::SharedMethodCallbackExecutor
-      reset_flock_method(new scripting::MethodCallback<FlockingGeeseApp>(
-          this, &FlockingGeeseApp::ResetFlock));
-  scripting_bridge_.AddMethodNamed(kResetFlockMethodId, reset_flock_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      run_sim_method(new scripting::MethodCallback<FlockingGeeseApp>(
-          this, &FlockingGeeseApp::RunSimulation));
-  scripting_bridge_.AddMethodNamed(kRunSimulationMethodId, run_sim_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      pause_sim_method(new scripting::MethodCallback<FlockingGeeseApp>(
-          this, &FlockingGeeseApp::PauseSimulation));
-  scripting_bridge_.AddMethodNamed(kPauseSimulationMethodId, pause_sim_method);
-
-  ScriptingBridge::SharedMethodCallbackExecutor
-      set_attractor_method(new scripting::MethodCallback<FlockingGeeseApp>(
-          this, &FlockingGeeseApp::SetAttractorLocation));
-  scripting_bridge_.AddMethodNamed(kSetAttractorLocMethodId,
-                                   set_attractor_method);
-
-  // Load the goose sprite.  |sprite_loader| is deleted by its delegate when
-  // the download is complete (or gets an error).  The PNG data is checked for
-  // validity at each Update(); when the PNG data has all arrived, the sprite
-  // can be used for drawing.
-  url_io::WebResourceLoader* sprite_loader =
-      new url_io::WebResourceLoader(this, &png_loader_);
-  url_io::URLRequest request("images/Flock32_Green.png");
-  sprite_loader->LoadURL(request);
-
-  flock_simulation_.StartSimulation();
-  return true;
-}
-
-void FlockingGeeseApp::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 FlockingGeeseApp::HandleMessage(const pp::Var& var_message) {
-  if (!var_message.is_string())
-    return;
-  scripting_bridge_.InvokeMethod(var_message.AsString());
-}
-
-void FlockingGeeseApp::ResetFlock(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  std::string flock_size_str = GetParameterNamed("size", parameters);
-  if (flock_size_str.length()) {
-    Flock::SimulationMode sim_mode = flock_simulation_.simulation_mode();
-    flock_simulation_.set_simulation_mode(flocking_geese::Flock::kPaused);
-    size_t flock_size = static_cast<size_t>(StringAsInt32(flock_size_str));
-    Vector2 initialLocation(view_size_.width(), view_size_.height());
-    initialLocation.Scale(0.5);
-    flock_simulation_.ResetFlock(flock_size, initialLocation);
-    flock_simulation_.set_simulation_mode(sim_mode);
-  }
-}
-
-void FlockingGeeseApp::RunSimulation(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  flock_simulation_.set_simulation_mode(flocking_geese::Flock::kRunning);
-  // Schedule a simulation tick to get things going.
-  pp::Module::Get()->core()->CallOnMainThread(
-      kSimulationTickInterval,
-      pp::CompletionCallback(&SimulationTickCallback, this),
-      PP_OK);
-}
-
-void FlockingGeeseApp::PauseSimulation(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  flock_simulation_.set_simulation_mode(flocking_geese::Flock::kPaused);
-}
-
-void FlockingGeeseApp::SetAttractorLocation(
-    const scripting::ScriptingBridge& bridge,
-    const scripting::MethodParameter& parameters) {
-  std::string loc_x_str = GetParameterNamed("x", parameters);
-  std::string loc_y_str = GetParameterNamed("y", parameters);
-  if (loc_x_str.length() && loc_y_str.length()) {
-    Vector2 attractor_loc(StringAsInt32(loc_x_str), StringAsInt32(loc_y_str));
-    flock_simulation_.SetAttractorAtIndex(attractor_loc, 0);
-  }
-}
-
-void FlockingGeeseApp::PostSimulationInfo() {
-  double frame_rate = flock_simulation_.FrameRate();
-  std::ostringstream method_invocation(std::ostringstream::out);
-  method_invocation << kSetSimulationInfoMethodId << " ";
-  method_invocation << kFrameRateParamId << ":" << frame_rate;
-  pp::Var var_message(method_invocation.str());
-  PostMessage(var_message);
-}
-
-void FlockingGeeseApp::Update() {
-  if (flush_pending())
-    return;  // Don't attempt to flush if one is pending.
-
-  // See if the goose sprite is ready to be used.
-  if (png_loader_.is_valid() && !flock_simulation_.has_goose_sprite()) {
-    pp::Size pixel_buffer_size = png_loader_.png_image_size();
-    uint32_t* pixel_buffer =
-        static_cast<uint32_t*>(malloc(pixel_buffer_size.width() *
-                                      pixel_buffer_size.height() *
-                                      sizeof(uint32_t)));
-    png_loader_.FillPixelBuffer(pixel_buffer);
-    flock_simulation_.set_goose_sprite(
-        new Sprite(pixel_buffer, png_loader_.png_image_size(), 0));
-  }
-
-  if (view_changed_size_) {
-    // Delete the old pixel buffer and create a new one.
-    // Pause the simulation before changing all the buffer sizes.
-    Flock::SimulationMode sim_mode = flock_simulation_.simulation_mode();
-    flock_simulation_.set_simulation_mode(flocking_geese::Flock::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(
-        flock_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;
-    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);
-      }
-      flock_simulation_.Resize(pp::Size(width(), height()));
-      flock_simulation_.set_pixel_buffer(shared_pixel_buffer_);
-      flock_simulation_.set_simulation_mode(sim_mode);
-    }
-    view_changed_size_ = false;
-  }
-  flock_simulation_.Render();
-  FlushPixelBuffer();
-}
-
-void FlockingGeeseApp::CreateContext(const pp::Size& size) {
-  if (IsContextValid())
-    return;
-  graphics_2d_context_ = new pp::Graphics2D(this, size, false);
-  if (!BindGraphics(*graphics_2d_context_)) {
-    PostMessage("Couldn't bind the device context");
-  }
-}
-
-void FlockingGeeseApp::DestroyContext() {
-  threading::ScopedMutexLock scoped_mutex(flock_simulation_.simulation_mutex());
-  if (!scoped_mutex.is_valid()) {
-    return;
-  }
-  ScopedPixelLock scoped_pixel_lock(shared_pixel_buffer_);
-  shared_pixel_buffer_.reset();
-  flock_simulation_.set_pixel_buffer(shared_pixel_buffer_);
-  if (!IsContextValid())
-    return;
-  delete graphics_2d_context_;
-  graphics_2d_context_ = NULL;
-}
-
-void FlockingGeeseApp::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 flocking_geese
-