Adding render stats APIs to UiAutomation (framework native).
bug:12927198
Change-Id: Ibb1c07f7d89e11281e5c1f27f412a29ac6f9c4ab
diff --git a/libs/ui/FrameStats.cpp b/libs/ui/FrameStats.cpp
new file mode 100644
index 0000000..acbe27e
--- /dev/null
+++ b/libs/ui/FrameStats.cpp
@@ -0,0 +1,84 @@
+/*
+ * 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 <ui/FrameStats.h>
+
+namespace android {
+
+bool FrameStats::isFixedSize() const {
+ return false;
+}
+
+size_t FrameStats::getFlattenedSize() const {
+ const size_t timestampSize = sizeof(nsecs_t);
+
+ size_t size = timestampSize;
+ size += 3 * desiredPresentTimesNano.size() * timestampSize;
+
+ return size;
+}
+
+status_t FrameStats::flatten(void* buffer, size_t size) const {
+ if (size < getFlattenedSize()) {
+ return NO_MEMORY;
+ }
+
+ nsecs_t* timestamps = reinterpret_cast<nsecs_t*>(buffer);
+ const size_t timestampSize = sizeof(nsecs_t);
+ size_t frameCount = desiredPresentTimesNano.size();
+
+ memcpy(timestamps, &refreshPeriodNano, timestampSize);
+ timestamps += 1;
+
+ memcpy(timestamps, desiredPresentTimesNano.array(), frameCount * timestampSize);
+ timestamps += frameCount;
+
+ memcpy(timestamps, actualPresentTimesNano.array(), frameCount * timestampSize);
+ timestamps += frameCount;
+
+ memcpy(timestamps, frameReadyTimesNano.array(), frameCount * timestampSize);
+
+ return NO_ERROR;
+}
+
+status_t FrameStats::unflatten(void const* buffer, size_t size) {
+ const size_t timestampSize = sizeof(nsecs_t);
+
+ if (size < timestampSize) {
+ return NO_MEMORY;
+ }
+
+ nsecs_t const* timestamps = reinterpret_cast<nsecs_t const*>(buffer);
+ size_t frameCount = (size - timestampSize) / (3 * timestampSize);
+
+ memcpy(&refreshPeriodNano, timestamps, timestampSize);
+ timestamps += 1;
+
+ desiredPresentTimesNano.resize(frameCount);
+ memcpy(desiredPresentTimesNano.editArray(), timestamps, frameCount * timestampSize);
+ timestamps += frameCount;
+
+ actualPresentTimesNano.resize(frameCount);
+ memcpy(actualPresentTimesNano.editArray(), timestamps, frameCount * timestampSize);
+ timestamps += frameCount;
+
+ frameReadyTimesNano.resize(frameCount);
+ memcpy(frameReadyTimesNano.editArray(), timestamps, frameCount * timestampSize);
+
+ return NO_ERROR;
+}
+
+} // namespace android