graphics: Add composer 2.3

The 2.3 interface adds IComposerClient.getDisplayIdentificationData,
which enables display identification for generalized multi-display
support.

Bug: 74619554
Test: VtsHalGraphicsComposerV2_3TargetTest
Change-Id: I303e722ce938fe0af4fc77da812e3525d8c90251
diff --git a/graphics/composer/2.3/utils/vts/ComposerVts.cpp b/graphics/composer/2.3/utils/vts/ComposerVts.cpp
new file mode 100644
index 0000000..f1d3a50
--- /dev/null
+++ b/graphics/composer/2.3/utils/vts/ComposerVts.cpp
@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2018 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 <composer-vts/2.3/ComposerVts.h>
+
+#include <VtsHalHidlTargetTestBase.h>
+
+namespace android {
+namespace hardware {
+namespace graphics {
+namespace composer {
+namespace V2_3 {
+namespace vts {
+
+using V2_1::Error;
+
+Composer::Composer() : Composer(::testing::VtsHalHidlTargetTestBase::getService<IComposer>()) {}
+
+Composer::Composer(const std::string& name)
+    : Composer(::testing::VtsHalHidlTargetTestBase::getService<IComposer>(name)) {}
+
+Composer::Composer(const sp<IComposer>& composer)
+    : V2_2::vts::Composer(composer), mComposer(composer) {}
+
+std::unique_ptr<ComposerClient> Composer::createClient() {
+    std::unique_ptr<ComposerClient> client;
+    mComposer->createClient_2_3([&client](const auto& tmpError, const auto& tmpClient) {
+        ASSERT_EQ(Error::NONE, tmpError) << "failed to create client";
+        client = std::make_unique<ComposerClient>(tmpClient);
+    });
+
+    return client;
+}
+
+bool ComposerClient::getDisplayIdentificationData(Display display, uint8_t* outPort,
+                                                  std::vector<uint8_t>* outData) {
+    bool supported = true;
+    mClient->getDisplayIdentificationData(
+        display, [&](const auto& tmpError, const auto& tmpPort, const auto& tmpData) {
+            if (tmpError == Error::UNSUPPORTED) {
+                supported = false;
+                return;
+            }
+            ASSERT_EQ(Error::NONE, tmpError) << "failed to get display identification data";
+
+            *outPort = tmpPort;
+            *outData = tmpData;
+            ASSERT_FALSE(outData->empty()) << "data is empty";
+        });
+
+    return supported;
+}
+
+}  // namespace vts
+}  // namespace V2_3
+}  // namespace composer
+}  // namespace graphics
+}  // namespace hardware
+}  // namespace android