Move utility classes in a separate static target

Split up utility classes that can be re-used in other IComposer related
tests (such as the IVrComposerClient tests).

Changes:
 * Move GraphicsComposerCallback into separate module
 * Extract TestCommandReader in separate module
 * Extract Composer::execute() from test class

Bug: 38203529
Test: Compiled
Change-Id: I0d1193469e9dd94c477a63058f98111c162dfa99
diff --git a/graphics/composer/2.1/vts/functional/GraphicsComposerCallback.cpp b/graphics/composer/2.1/vts/functional/GraphicsComposerCallback.cpp
new file mode 100644
index 0000000..0ad440c
--- /dev/null
+++ b/graphics/composer/2.1/vts/functional/GraphicsComposerCallback.cpp
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "GraphicsComposerCallback.h"
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_1 {
+namespace tests {
+
+void GraphicsComposerCallback::setVsyncAllowed(bool allowed) {
+  std::lock_guard<std::mutex> lock(mMutex);
+  mVsyncAllowed = allowed;
+}
+
+std::vector<Display> GraphicsComposerCallback::getDisplays() const {
+  std::lock_guard<std::mutex> lock(mMutex);
+  return std::vector<Display>(mDisplays.begin(), mDisplays.end());
+}
+
+int GraphicsComposerCallback::getInvalidHotplugCount() const {
+  std::lock_guard<std::mutex> lock(mMutex);
+  return mInvalidHotplugCount;
+}
+
+int GraphicsComposerCallback::getInvalidRefreshCount() const {
+  std::lock_guard<std::mutex> lock(mMutex);
+  return mInvalidRefreshCount;
+}
+
+int GraphicsComposerCallback::getInvalidVsyncCount() const {
+  std::lock_guard<std::mutex> lock(mMutex);
+  return mInvalidVsyncCount;
+}
+
+Return<void> GraphicsComposerCallback::onHotplug(Display display,
+                                                 Connection connection) {
+  std::lock_guard<std::mutex> lock(mMutex);
+
+  if (connection == Connection::CONNECTED) {
+    if (!mDisplays.insert(display).second) {
+      mInvalidHotplugCount++;
+    }
+  } else if (connection == Connection::DISCONNECTED) {
+    if (!mDisplays.erase(display)) {
+      mInvalidHotplugCount++;
+    }
+  }
+
+  return Void();
+}
+
+Return<void> GraphicsComposerCallback::onRefresh(Display display) {
+  std::lock_guard<std::mutex> lock(mMutex);
+
+  if (mDisplays.count(display) == 0) {
+    mInvalidRefreshCount++;
+  }
+
+  return Void();
+}
+
+Return<void> GraphicsComposerCallback::onVsync(Display display, int64_t) {
+  std::lock_guard<std::mutex> lock(mMutex);
+
+  if (!mVsyncAllowed || mDisplays.count(display) == 0) {
+    mInvalidVsyncCount++;
+  }
+
+  return Void();
+}
+
+}  // namespace tests
+}  // namespace V2_1
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android