Default implementation for Automotive Display Service
Bug: 140395359
Test: m -j; adb shell lshal
Change-Id: I652873ebe4258d1bfc07570ac5ea844615bebc46
diff --git a/services/automotive/display/CarWindowService.cpp b/services/automotive/display/CarWindowService.cpp
new file mode 100644
index 0000000..e95c9e1
--- /dev/null
+++ b/services/automotive/display/CarWindowService.cpp
@@ -0,0 +1,121 @@
+//
+// Copyright (C) 2019 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 <ui/DisplayInfo.h>
+#include <gui/bufferqueue/2.0/B2HGraphicBufferProducer.h>
+
+#include "CarWindowService.h"
+
+namespace android {
+namespace frameworks {
+namespace automotive {
+namespace display {
+namespace V1_0 {
+namespace implementation {
+
+Return<sp<IGraphicBufferProducer>>
+ CarWindowService::getIGraphicBufferProducer() {
+ if (mSurface == nullptr) {
+ status_t err;
+ mSurfaceComposerClient = new SurfaceComposerClient();
+
+ err = mSurfaceComposerClient->initCheck();
+ if (err != NO_ERROR) {
+ ALOGE("SurfaceComposerClient::initCheck error: %#x", err);
+ mSurfaceComposerClient = nullptr;
+ return nullptr;
+ }
+
+ // Get main display parameters.
+ sp<IBinder> mainDpy = SurfaceComposerClient::getInternalDisplayToken();
+ if (mainDpy == nullptr) {
+ ALOGE("Failed to get internal display ");
+ return nullptr;
+ }
+ DisplayInfo mainDpyInfo;
+ err = SurfaceComposerClient::getDisplayInfo(mainDpy, &mainDpyInfo);
+ if (err != NO_ERROR) {
+ ALOGE("Failed to get display characteristics");
+ return nullptr;
+ }
+ unsigned int mWidth, mHeight;
+ if (mainDpyInfo.orientation != ui::ROTATION_0 &&
+ mainDpyInfo.orientation != ui::ROTATION_180) {
+ // rotated
+ mWidth = mainDpyInfo.h;
+ mHeight = mainDpyInfo.w;
+ } else {
+ mWidth = mainDpyInfo.w;
+ mHeight = mainDpyInfo.h;
+ }
+
+ mSurfaceControl = mSurfaceComposerClient->createSurface(
+ String8("Automotive Display"), mWidth, mHeight,
+ PIXEL_FORMAT_RGBX_8888, ISurfaceComposerClient::eOpaque);
+ if (mSurfaceControl == nullptr || !mSurfaceControl->isValid()) {
+ ALOGE("Failed to create SurfaceControl");
+ mSurfaceComposerClient = nullptr;
+ mSurfaceControl = nullptr;
+ return nullptr;
+ }
+
+ // SurfaceControl::getSurface is guaranteed to be not null.
+ mSurface = mSurfaceControl->getSurface();
+ }
+
+ return new ::android::hardware::graphics::bufferqueue::V2_0::utils::
+ B2HGraphicBufferProducer(
+ mSurface->getIGraphicBufferProducer());
+}
+
+Return<bool> CarWindowService::showWindow() {
+ status_t status = NO_ERROR;
+
+ if (mSurfaceControl != nullptr) {
+ status = SurfaceComposerClient::Transaction{}
+ .setLayer(
+ mSurfaceControl, 0x7FFFFFFF) // always on top
+ .show(mSurfaceControl)
+ .apply();
+ } else {
+ ALOGE("showWindow: Failed to get a valid SurfaceControl!");
+ return false;
+ }
+
+ return status == NO_ERROR;
+}
+
+Return<bool> CarWindowService::hideWindow() {
+ status_t status = NO_ERROR;
+
+ if (mSurfaceControl != nullptr) {
+ status = SurfaceComposerClient::Transaction{}
+ .hide(mSurfaceControl)
+ .apply();
+ } else {
+ ALOGE("hideWindow: Failed to get a valid SurfaceControl!");
+ return false;
+ }
+
+ return status == NO_ERROR;
+}
+
+} // namespace implementation
+} // namespace V1_0
+} // namespace display
+} // namespace automotive
+} // namespace frameworks
+} // namespace android
+