[RenderEngine] Move RenderEngine to libs/renderengine

To do side-by-side comparison between readback buffer from hardware composer
and client target of RenderEngine, we need RenderEngine to be accessible in
VTS, which means RenderEngine should be part of VNDK. This patch moves
RenderEngine out of SurfaceFlinger to libs/renderengine.

BUG: 112585051
Test: build, flash, boot and do some display validation
Change-Id: Ib6b302eaad04c7cc6c5bae39b1d25b38be188d01

1 files changed, 56 insertions, 0 deletions

diff --git a/libs/renderengine/RenderEngine.cpp b/libs/renderengine/RenderEngine.cpp
new file mode 100644
index 0000000000..8be1c3c85b
--- /dev/null
+++ b/libs/renderengine/RenderEngine.cpp
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2013 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 <renderengine/RenderEngine.h>
+
+#include <cutils/properties.h>
+#include <log/log.h>
+#include <private/gui/SyncFeatures.h>
+#include "gl/GLES20RenderEngine.h"
+
+namespace android {
+namespace renderengine {
+
+std::unique_ptr<impl::RenderEngine> RenderEngine::create(int hwcFormat, uint32_t featureFlags) {
+    char prop[PROPERTY_VALUE_MAX];
+    property_get(PROPERTY_DEBUG_RENDERENGINE_BACKEND, prop, "gles");
+    if (strcmp(prop, "gles") == 0) {
+        ALOGD("RenderEngine GLES Backend");
+        return renderengine::gl::GLES20RenderEngine::create(hwcFormat, featureFlags);
+    }
+    ALOGE("UNKNOWN BackendType: %s, create GLES RenderEngine.", prop);
+    return renderengine::gl::GLES20RenderEngine::create(hwcFormat, featureFlags);
+}
+
+RenderEngine::~RenderEngine() = default;
+
+namespace impl {
+
+RenderEngine::RenderEngine(uint32_t featureFlags) : mFeatureFlags(featureFlags) {}
+
+RenderEngine::~RenderEngine() = default;
+
+bool RenderEngine::useNativeFenceSync() const {
+    return SyncFeatures::getInstance().useNativeFenceSync();
+}
+
+bool RenderEngine::useWaitSync() const {
+    return SyncFeatures::getInstance().useWaitSync();
+}
+
+} // namespace impl
+} // namespace renderengine
+} // namespace android