replicant-frameworks_native/libs/input/tests/StructLayout_test.cpp

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/*
* Copyright (C) 2014 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 <input/InputTransport.h>
#include <input/Input.h>
namespace android {
#define CHECK_OFFSET(type, member, expected_offset) \
static_assert((offsetof(type, member) == expected_offset), "")
struct Foo {
uint32_t dummy;
PointerCoords coords;
};
void TestPointerCoordsAlignment() {
CHECK_OFFSET(Foo, coords, 8);
}
void TestInputMessageAlignment() {
CHECK_OFFSET(InputMessage, body, 8);
CHECK_OFFSET(InputMessage::Body::Key, seq, 0);
CHECK_OFFSET(InputMessage::Body::Key, eventTime, 8);
CHECK_OFFSET(InputMessage::Body::Key, deviceId, 16);
CHECK_OFFSET(InputMessage::Body::Key, source, 20);
CHECK_OFFSET(InputMessage::Body::Key, action, 24);
CHECK_OFFSET(InputMessage::Body::Key, flags, 28);
CHECK_OFFSET(InputMessage::Body::Key, keyCode, 32);
CHECK_OFFSET(InputMessage::Body::Key, scanCode, 36);
CHECK_OFFSET(InputMessage::Body::Key, metaState, 40);
CHECK_OFFSET(InputMessage::Body::Key, repeatCount, 44);
CHECK_OFFSET(InputMessage::Body::Key, downTime, 48);
CHECK_OFFSET(InputMessage::Body::Motion, seq, 0);
CHECK_OFFSET(InputMessage::Body::Motion, eventTime, 8);
CHECK_OFFSET(InputMessage::Body::Motion, deviceId, 16);
CHECK_OFFSET(InputMessage::Body::Motion, source, 20);
CHECK_OFFSET(InputMessage::Body::Motion, action, 24);
CHECK_OFFSET(InputMessage::Body::Motion, actionButton, 28);
CHECK_OFFSET(InputMessage::Body::Motion, flags, 32);
CHECK_OFFSET(InputMessage::Body::Motion, metaState, 36);
CHECK_OFFSET(InputMessage::Body::Motion, buttonState, 40);
CHECK_OFFSET(InputMessage::Body::Motion, edgeFlags, 44);
CHECK_OFFSET(InputMessage::Body::Motion, downTime, 48);
CHECK_OFFSET(InputMessage::Body::Motion, xOffset, 56);
CHECK_OFFSET(InputMessage::Body::Motion, yOffset, 60);
CHECK_OFFSET(InputMessage::Body::Motion, xPrecision, 64);
CHECK_OFFSET(InputMessage::Body::Motion, yPrecision, 68);
CHECK_OFFSET(InputMessage::Body::Motion, pointerCount, 72);
CHECK_OFFSET(InputMessage::Body::Motion, pointers, 80);
}
} // namespace android