SurfaceFlinger: Add transaction proto and parser
Bug: 200284593
Test: atest libsurfaceflinger_unittest
Change-Id: Ia7cfde03a1d9df12fc6f4d35e7a93d41f680c180
diff --git a/services/surfaceflinger/tests/unittests/TransactionProtoParserTest.cpp b/services/surfaceflinger/tests/unittests/TransactionProtoParserTest.cpp
new file mode 100644
index 0000000..cebd451
--- /dev/null
+++ b/services/surfaceflinger/tests/unittests/TransactionProtoParserTest.cpp
@@ -0,0 +1,106 @@
+/*
+ * Copyright 2021 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 <gmock/gmock.h>
+#include <gtest/gtest.h>
+#include <limits> // std::numeric_limits
+
+#include <gui/SurfaceComposerClient.h>
+
+#include "Tracing/TransactionProtoParser.h"
+
+using namespace android::surfaceflinger;
+
+namespace android {
+
+TEST(TransactionProtoParserTest, parse) {
+ const sp<IBinder> layerHandle = new BBinder();
+ const sp<IBinder> displayHandle = new BBinder();
+ TransactionState t1;
+ t1.originPid = 1;
+ t1.originUid = 2;
+ t1.frameTimelineInfo.vsyncId = 3;
+ t1.frameTimelineInfo.inputEventId = 4;
+ t1.postTime = 5;
+
+ layer_state_t layer;
+ layer.layerId = 6;
+ layer.what = std::numeric_limits<uint64_t>::max();
+ layer.x = 7;
+ layer.matrix.dsdx = 15;
+
+ size_t layerCount = 2;
+ t1.states.reserve(layerCount);
+ for (uint32_t i = 0; i < layerCount; i++) {
+ ComposerState s;
+ if (i == 1) {
+ layer.parentSurfaceControlForChild =
+ new SurfaceControl(SurfaceComposerClient::getDefault(), layerHandle, nullptr,
+ 42);
+ }
+ s.state = layer;
+ t1.states.add(s);
+ }
+
+ size_t displayCount = 2;
+ t1.displays.reserve(displayCount);
+ for (uint32_t i = 0; i < displayCount; i++) {
+ DisplayState display;
+ display.what = std::numeric_limits<uint32_t>::max();
+ if (i == 0) {
+ display.token = displayHandle;
+ } else {
+ display.token = nullptr;
+ }
+ display.width = 85;
+ t1.displays.add(display);
+ }
+
+ std::function<int32_t(const sp<IBinder>&)> getLayerIdFn = [&](const sp<IBinder>& handle) {
+ return (handle == layerHandle) ? 42 : -1;
+ };
+ std::function<int32_t(const sp<IBinder>&)> getDisplayIdFn = [&](const sp<IBinder>& handle) {
+ return (handle == displayHandle) ? 43 : -1;
+ };
+ std::function<sp<IBinder>(int32_t)> getLayerHandleFn = [&](int32_t id) {
+ return (id == 42) ? layerHandle : nullptr;
+ };
+ std::function<sp<IBinder>(int32_t)> getDisplayHandleFn = [&](int32_t id) {
+ return (id == 43) ? displayHandle : nullptr;
+ };
+
+ proto::TransactionState proto =
+ TransactionProtoParser::toProto(t1, getLayerIdFn, getDisplayIdFn);
+ TransactionState t2 =
+ TransactionProtoParser::fromProto(proto, getLayerHandleFn, getDisplayHandleFn);
+
+ ASSERT_EQ(t1.originPid, t2.originPid);
+ ASSERT_EQ(t1.originUid, t2.originUid);
+ ASSERT_EQ(t1.frameTimelineInfo.vsyncId, t2.frameTimelineInfo.vsyncId);
+ ASSERT_EQ(t1.frameTimelineInfo.inputEventId, t2.frameTimelineInfo.inputEventId);
+ ASSERT_EQ(t1.postTime, t2.postTime);
+ ASSERT_EQ(t1.states.size(), t2.states.size());
+ ASSERT_EQ(t1.states[0].state.x, t2.states[0].state.x);
+ ASSERT_EQ(t1.states[0].state.matrix.dsdx, t2.states[0].state.matrix.dsdx);
+ ASSERT_EQ(t1.states[1].state.parentSurfaceControlForChild->getHandle(),
+ t2.states[1].state.parentSurfaceControlForChild->getHandle());
+
+ ASSERT_EQ(t1.displays.size(), t2.displays.size());
+ ASSERT_EQ(t1.displays[1].width, t2.displays[1].width);
+ ASSERT_EQ(t1.displays[0].token, t2.displays[0].token);
+}
+
+} // namespace android