Added infrastructure to run gpu demos under Pepper3D. Created a Demo class th...

gpu/demos/framework/demo.cc

+// Copyright (c) 2010 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/framework/demo.h"
+#include "gpu/demos/framework/demo_factory.h"
+
+namespace gpu {
+namespace demos {
+
+Demo::Demo() : width_(0), height_(0) {
+}
+
+Demo::~Demo() {
+}
+
+void Demo::InitWindowSize(int width, int height) {
+  width_ = width;
+  height_ = height;
+}
+
+void Demo::Draw() {
+  float elapsed_sec = 0.0f;
+  const base::Time current_time = base::Time::Now();
+  if (!last_draw_time_.is_null()) {
+    base::TimeDelta time_delta = current_time - last_draw_time_;
+    elapsed_sec = static_cast<float>(time_delta.InSecondsF());
+  }
+  last_draw_time_ = current_time;
+
+  Render(elapsed_sec);
+}
+
+}  // namespace demos
+}  // namespace gpu