Add request tracking.
RequestTracker keeps track of how many buffers are in flight for
each stream, and what frame numbers correspond to what requests/buffers.
BUG: 31044638
TEST: unit tests pass
Change-Id: I8ef3fcacdf8171514ea7f7eaf77301a641bff61e
diff --git a/modules/camera/3_4/capture_request.cpp b/modules/camera/3_4/capture_request.cpp
new file mode 100644
index 0000000..00b20cd
--- /dev/null
+++ b/modules/camera/3_4/capture_request.cpp
@@ -0,0 +1,56 @@
+/*
+ * Copyright 2016 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 "capture_request.h"
+
+#include <set>
+
+namespace default_camera_hal {
+
+CaptureRequest::CaptureRequest() : CaptureRequest(nullptr) {}
+
+CaptureRequest::CaptureRequest(const camera3_capture_request_t* request) {
+ if (!request) {
+ return;
+ }
+
+ frame_number = request->frame_number;
+
+ // CameraMetadata makes copies of camera_metadata_t through the
+ // assignment operator (the constructor taking a camera_metadata_t*
+ // takes ownership instead).
+ settings = request->settings;
+
+ // camera3_stream_buffer_t can be default copy constructed,
+ // as its pointer values are handles, not ownerships.
+
+ // Copy the input buffer.
+ if (request->input_buffer) {
+ input_buffer =
+ std::make_unique<camera3_stream_buffer_t>(*request->input_buffer);
+ }
+
+ // Safely copy all the output buffers.
+ uint32_t num_output_buffers = request->num_output_buffers;
+ if (num_output_buffers < 0 || !request->output_buffers) {
+ num_output_buffers = 0;
+ }
+ output_buffers.insert(output_buffers.end(),
+ request->output_buffers,
+ request->output_buffers + num_output_buffers);
+}
+
+} // namespace default_camera_hal