commit cd2e9f587d9d24fc0e5b1058e8a05c573714ec02
author Dominik Laskowski <domlaskowski@google.com> Mon Mar 12 19:41:03 2018 -0700
committer Dominik Laskowski <domlaskowski@google.com> Tue Apr 24 10:26:16 2018 -0700
tree 37e146f0904511bbd65a605da2ed77f37ef38b7b
parent 0a197a2ff227f3624e8a64455de51cf1b2e9ff45

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

graphics/composer/2.3/default/service.cpp

diff --git a/graphics/composer/2.3/default/service.cpp b/graphics/composer/2.3/default/service.cpp
new file mode 100644
index 0000000..347d8be
--- /dev/null
+++ b/graphics/composer/2.3/default/service.cpp
@@ -0,0 +1,55 @@
+/*
+ * Copyright 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 <sched.h>
+
+#include <android/hardware/graphics/composer/2.3/IComposer.h>
+#include <binder/ProcessState.h>
+#include <composer-passthrough/2.3/HwcLoader.h>
+#include <hidl/HidlTransportSupport.h>
+
+using android::hardware::graphics::composer::V2_3::IComposer;
+using android::hardware::graphics::composer::V2_3::passthrough::HwcLoader;
+
+int main() {
+    // the conventional HAL might start binder services
+    android::ProcessState::initWithDriver("/dev/vndbinder");
+    android::ProcessState::self()->setThreadPoolMaxThreadCount(4);
+    android::ProcessState::self()->startThreadPool();
+
+    // same as SF main thread
+    struct sched_param param = {0};
+    param.sched_priority = 2;
+    if (sched_setscheduler(0, SCHED_FIFO | SCHED_RESET_ON_FORK, &param) != 0) {
+        ALOGE("Couldn't set SCHED_FIFO: %d", errno);
+    }
+
+    android::hardware::configureRpcThreadpool(4, true /* will join */);
+
+    android::sp<IComposer> composer = HwcLoader::load();
+    if (composer == nullptr) {
+        return 1;
+    }
+    if (composer->registerAsService() != android::NO_ERROR) {
+        ALOGE("failed to register service");
+        return 1;
+    }
+
+    android::hardware::joinRpcThreadpool();
+
+    ALOGE("service is terminating");
+    return 1;
+}