Revert 35500 - Added an application framework for demos. Ported hellotriangle...

gpu/demos/app_framework/application.cc

Index: gpu/demos/app_framework/application.cc
===================================================================
--- gpu/demos/app_framework/application.cc	(revision 35503)
+++ gpu/demos/app_framework/application.cc	(working copy)
@@ -1,161 +0,0 @@
-// Copyright (c) 2006-2009 The Chromium 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 "gpu/demos/app_framework/application.h"
-
-#include "gpu/command_buffer/client/gles2_implementation.h"
-#include "gpu/command_buffer/client/gles2_lib.h"
-#include "gpu/command_buffer/service/command_buffer_service.h"
-#include "gpu/command_buffer/service/gpu_processor.h"
-
-using gpu::Buffer;
-using gpu::CommandBufferService;
-using gpu::GPUProcessor;
-using gpu::gles2::GLES2CmdHelper;
-using gpu::gles2::GLES2Implementation;
-
-// TODO(alokp): Implement it on mac and linux when gpu process is functional
-// on these OS'.
-#if defined(OS_WIN)
-namespace {
-static const int32 kCommandBufferSize = 1024 * 1024;
-static const int32 kTransferBufferSize = 512 * 1024;
-
-static LRESULT CALLBACK WindowProc(HWND hwnd, UINT msg,
-                                   WPARAM w_param, LPARAM l_param) {
-  LRESULT result = 0;
-  switch (msg) {
-    case WM_CLOSE:
-      ::DestroyWindow(hwnd);
-      break;
-    case WM_DESTROY:
-      ::PostQuitMessage(0);
-      break;
-    case WM_PAINT: {
-      using gpu_demos::Application;
-      Application* app = reinterpret_cast<Application*>(
-          GetWindowLongPtr(hwnd, GWL_USERDATA));
-      if (app != NULL) app->OnPaint();
-      ::ValidateRect(hwnd, NULL);
-      break;
-    }
-    default:
-      result = ::DefWindowProc(hwnd, msg, w_param, l_param);
-      break;
-  }
-  return result;
-}
-}  // namespace.
-
-namespace gpu_demos {
-
-Application::Application()
-    : width_(512),
-      height_(512),
-      window_handle_(NULL) {
-}
-
-Application::~Application() {
-}
-
-void Application::MainLoop() {
-  MSG msg;
-  bool done = false;
-  while (!done) {
-    while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) {
-      if (msg.message == WM_QUIT) done = true;
-      TranslateMessage(&msg);
-      DispatchMessage(&msg);
-    }
-    // Message queue is empty and application has not quit yet - keep painting.
-    if (!done) SendMessage(window_handle_, WM_PAINT, 0, 0);
-  }
-}
-
-void Application::OnPaint() {
-  Draw();
-  gles2::GetGLContext()->SwapBuffers();
-}
-
-bool Application::InitRenderContext() {
-  window_handle_ = CreateNativeWindow();
-  if (window_handle_ == NULL) {
-    return false;
-  }
-
-  scoped_ptr<CommandBufferService> command_buffer(new CommandBufferService);
-  if (!command_buffer->Initialize(kCommandBufferSize)) {
-    return false;
-  }
-
-  scoped_refptr<GPUProcessor> gpu_processor(
-      new GPUProcessor(command_buffer.get()));
-  if (!gpu_processor->Initialize(window_handle_)) {
-    return false;
-  }
-
-  command_buffer->SetPutOffsetChangeCallback(
-      NewCallback(gpu_processor.get(), &GPUProcessor::ProcessCommands));
-
-  GLES2CmdHelper* helper = new GLES2CmdHelper(command_buffer.get());
-  if (!helper->Initialize()) {
-    // TODO(alokp): cleanup.
-    return false;
-  }
-
-  int32 transfer_buffer_id =
-      command_buffer->CreateTransferBuffer(kTransferBufferSize);
-  Buffer transfer_buffer =
-      command_buffer->GetTransferBuffer(transfer_buffer_id);
-  if (transfer_buffer.ptr == NULL) return false;
-
-  gles2::g_gl_impl = new GLES2Implementation(helper,
-                                             transfer_buffer.size,
-                                             transfer_buffer.ptr,
-                                             transfer_buffer_id);
-
-  return command_buffer.release() != NULL;
-}
-
-NativeWindowHandle Application::CreateNativeWindow() {
-  WNDCLASS wnd_class = {0};
-  HINSTANCE instance = GetModuleHandle(NULL);
-  wnd_class.style = CS_OWNDC;
-  wnd_class.lpfnWndProc = (WNDPROC)WindowProc;
-  wnd_class.hInstance = instance;
-  wnd_class.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
-  wnd_class.lpszClassName = L"opengles2.0";
-  if (!RegisterClass(&wnd_class)) return NULL;
-
-  DWORD wnd_style = WS_VISIBLE | WS_POPUP | WS_BORDER | WS_SYSMENU | WS_CAPTION;
-  RECT wnd_rect;
-  wnd_rect.left = 0;
-  wnd_rect.top = 0;
-  wnd_rect.right = width_;
-  wnd_rect.bottom = height_;
-  AdjustWindowRect(&wnd_rect, wnd_style, FALSE);
-
-  HWND hwnd = CreateWindow(
-      wnd_class.lpszClassName,
-      wnd_class.lpszClassName,
-      wnd_style,
-      0,
-      0,
-      wnd_rect.right - wnd_rect.left,
-      wnd_rect.bottom - wnd_rect.top,
-      NULL,
-      NULL,
-      instance,
-      NULL);
-  if (hwnd == NULL) return NULL;
-
-  ShowWindow(hwnd, SW_SHOWNORMAL);
-  // Set this to the GWL_USERDATA so that it is available to WindowProc.
-  SetWindowLongPtr(hwnd, GWL_USERDATA, (LONG_PTR)this);
-
-  return hwnd;
-}
-
-}  // namespace gpu_demos
-#endif  // defined(OS_WIN)