Add EVS v1.1 interface
Extends existing v1.0 interfaces to support more functionalities and
adds corresponding test cases.
Bug: 135472573
Test: VTS
Change-Id: I5245238e6a18ddc2c0451aaa21a9cce55c6207eb
Signed-off-by: Changyeon Jo <changyeon@google.com>
diff --git a/automotive/evs/1.1/default/EvsCamera.h b/automotive/evs/1.1/default/EvsCamera.h
new file mode 100644
index 0000000..0982464
--- /dev/null
+++ b/automotive/evs/1.1/default/EvsCamera.h
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2019 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.
+ */
+
+#ifndef ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_1_EVSCAMERA_H
+#define ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_1_EVSCAMERA_H
+
+#include <android/hardware/automotive/evs/1.1/types.h>
+#include <android/hardware/automotive/evs/1.1/IEvsCamera.h>
+#include <android/hardware/automotive/evs/1.1/IEvsCameraStream.h>
+#include <ui/GraphicBuffer.h>
+
+#include <thread>
+
+using BufferDesc_1_0 = ::android::hardware::automotive::evs::V1_0::BufferDesc;
+using BufferDesc_1_1 = ::android::hardware::automotive::evs::V1_1::BufferDesc;
+using IEvsCameraStream_1_0 = ::android::hardware::automotive::evs::V1_0::IEvsCameraStream;
+using IEvsCameraStream_1_1 = ::android::hardware::automotive::evs::V1_1::IEvsCameraStream;
+using ::android::hardware::automotive::evs::V1_0::EvsResult;
+using ::android::hardware::automotive::evs::V1_0::CameraDesc;
+
+
+namespace android {
+namespace hardware {
+namespace automotive {
+namespace evs {
+namespace V1_1 {
+namespace implementation {
+
+
+// From EvsEnumerator.h
+class EvsEnumerator;
+
+
+class EvsCamera : public IEvsCamera {
+public:
+ // Methods from ::android::hardware::automotive::evs::V1_0::IEvsCamera follow.
+ Return<void> getCameraInfo(getCameraInfo_cb _hidl_cb) override;
+ Return<EvsResult> setMaxFramesInFlight(uint32_t bufferCount) override;
+ Return<EvsResult> startVideoStream(const ::android::sp<IEvsCameraStream_1_0>& stream) override;
+ Return<void> stopVideoStream() override;
+ Return<void> doneWithFrame(const BufferDesc_1_0& buffer) override;
+
+ Return<int32_t> getExtendedInfo(uint32_t opaqueIdentifier) override;
+ Return<EvsResult> setExtendedInfo(uint32_t opaqueIdentifier, int32_t opaqueValue) override;
+
+ // Methods from ::android::hardware::automotive::evs::V1_1::IEvsCamera follow.
+ Return<EvsResult> pauseVideoStream() override;
+ Return<EvsResult> resumeVideoStream() override;
+ Return<EvsResult> doneWithFrame_1_1(const BufferDesc_1_1& buffer) override;
+
+ // Implementation details
+ EvsCamera(const char *id);
+ virtual ~EvsCamera() override;
+ void forceShutdown(); // This gets called if another caller "steals" ownership of the camera
+
+ const CameraDesc& getDesc() { return mDescription; };
+
+ static const char kCameraName_Backup[];
+
+private:
+ // These three functions are expected to be called while mAccessLock is held
+ bool setAvailableFrames_Locked(unsigned bufferCount);
+ unsigned increaseAvailableFrames_Locked(unsigned numToAdd);
+ unsigned decreaseAvailableFrames_Locked(unsigned numToRemove);
+
+ void generateFrames();
+ void fillTestFrame(const BufferDesc_1_0& buff);
+ void fillTestFrame(const BufferDesc_1_1& buff);
+ void returnBuffer(const uint32_t bufferId, const buffer_handle_t memHandle);
+
+ sp<EvsEnumerator> mEnumerator; // The enumerator object that created this camera
+
+ CameraDesc mDescription = {}; // The properties of this camera
+
+ std::thread mCaptureThread; // The thread we'll use to synthesize frames
+
+ uint32_t mWidth = 0; // Horizontal pixel count in the buffers
+ uint32_t mHeight = 0; // Vertical pixel count in the buffers
+ uint32_t mFormat = 0; // Values from android_pixel_format_t
+ uint64_t mUsage = 0; // Values from from Gralloc.h
+ uint32_t mStride = 0; // Bytes per line in the buffers
+
+ sp<IEvsCameraStream_1_1> mStream = nullptr; // The callback used to deliver each frame
+
+ struct BufferRecord {
+ buffer_handle_t handle;
+ bool inUse;
+
+ explicit BufferRecord(buffer_handle_t h) : handle(h), inUse(false) {};
+ };
+
+ std::vector <BufferRecord> mBuffers; // Graphics buffers to transfer images
+ unsigned mFramesAllowed; // How many buffers are we currently using
+ unsigned mFramesInUse; // How many buffers are currently outstanding
+
+ enum StreamStateValues {
+ STOPPED,
+ RUNNING,
+ STOPPING,
+ DEAD,
+ };
+ StreamStateValues mStreamState;
+
+ // Synchronization necessary to deconflict mCaptureThread from the main service thread
+ std::mutex mAccessLock;
+};
+
+} // namespace implementation
+} // namespace V1_1
+} // namespace evs
+} // namespace automotive
+} // namespace hardware
+} // namespace android
+
+#endif // ANDROID_HARDWARE_AUTOMOTIVE_EVS_V1_1_EVSCAMERA_H