1/*
2**
3** Copyright 2013, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18//#define LOG_NDEBUG 0
19#define LOG_TAG "ICameraDeviceCallbacks"
20#include <utils/Log.h>
21#include <stdint.h>
22#include <sys/types.h>
23
24#include <binder/Parcel.h>
25#include <gui/IGraphicBufferProducer.h>
26#include <gui/Surface.h>
27#include <utils/Mutex.h>
28
29#include <camera/camera2/ICameraDeviceCallbacks.h>
30#include "camera/CameraMetadata.h"
31#include "camera/CaptureResult.h"
32
33namespace android {
34
35enum {
36    CAMERA_ERROR = IBinder::FIRST_CALL_TRANSACTION,
37    CAMERA_IDLE,
38    CAPTURE_STARTED,
39    RESULT_RECEIVED,
40};
41
42class BpCameraDeviceCallbacks: public BpInterface<ICameraDeviceCallbacks>
43{
44public:
45    BpCameraDeviceCallbacks(const sp<IBinder>& impl)
46        : BpInterface<ICameraDeviceCallbacks>(impl)
47    {
48    }
49
50    void onDeviceError(CameraErrorCode errorCode, const CaptureResultExtras& resultExtras)
51    {
52        ALOGV("onDeviceError");
53        Parcel data, reply;
54        data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor());
55        data.writeInt32(static_cast<int32_t>(errorCode));
56        data.writeInt32(1); // to mark presence of CaptureResultExtras object
57        resultExtras.writeToParcel(&data);
58        remote()->transact(CAMERA_ERROR, data, &reply, IBinder::FLAG_ONEWAY);
59        data.writeNoException();
60    }
61
62    void onDeviceIdle()
63    {
64        ALOGV("onDeviceIdle");
65        Parcel data, reply;
66        data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor());
67        remote()->transact(CAMERA_IDLE, data, &reply, IBinder::FLAG_ONEWAY);
68        data.writeNoException();
69    }
70
71    void onCaptureStarted(const CaptureResultExtras& result, int64_t timestamp)
72    {
73        ALOGV("onCaptureStarted");
74        Parcel data, reply;
75        data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor());
76        data.writeInt32(1); // to mark presence of CaptureResultExtras object
77        result.writeToParcel(&data);
78        data.writeInt64(timestamp);
79        remote()->transact(CAPTURE_STARTED, data, &reply, IBinder::FLAG_ONEWAY);
80        data.writeNoException();
81    }
82
83
84    void onResultReceived(const CameraMetadata& metadata,
85            const CaptureResultExtras& resultExtras) {
86        ALOGV("onResultReceived");
87        Parcel data, reply;
88        data.writeInterfaceToken(ICameraDeviceCallbacks::getInterfaceDescriptor());
89        data.writeInt32(1); // to mark presence of metadata object
90        metadata.writeToParcel(&data);
91        data.writeInt32(1); // to mark presence of CaptureResult object
92        resultExtras.writeToParcel(&data);
93        remote()->transact(RESULT_RECEIVED, data, &reply, IBinder::FLAG_ONEWAY);
94        data.writeNoException();
95    }
96};
97
98IMPLEMENT_META_INTERFACE(CameraDeviceCallbacks,
99                         "android.hardware.camera2.ICameraDeviceCallbacks");
100
101// ----------------------------------------------------------------------
102
103status_t BnCameraDeviceCallbacks::onTransact(
104    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
105{
106    ALOGV("onTransact - code = %d", code);
107    switch(code) {
108        case CAMERA_ERROR: {
109            ALOGV("onDeviceError");
110            CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
111            CameraErrorCode errorCode =
112                    static_cast<CameraErrorCode>(data.readInt32());
113            CaptureResultExtras resultExtras;
114            if (data.readInt32() != 0) {
115                resultExtras.readFromParcel(const_cast<Parcel*>(&data));
116            } else {
117                ALOGE("No CaptureResultExtras object is present!");
118            }
119            onDeviceError(errorCode, resultExtras);
120            data.readExceptionCode();
121            return NO_ERROR;
122        } break;
123        case CAMERA_IDLE: {
124            ALOGV("onDeviceIdle");
125            CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
126            onDeviceIdle();
127            data.readExceptionCode();
128            return NO_ERROR;
129        } break;
130        case CAPTURE_STARTED: {
131            ALOGV("onCaptureStarted");
132            CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
133            CaptureResultExtras result;
134            if (data.readInt32() != 0) {
135                result.readFromParcel(const_cast<Parcel*>(&data));
136            } else {
137                ALOGE("No CaptureResultExtras object is present in result!");
138            }
139            int64_t timestamp = data.readInt64();
140            onCaptureStarted(result, timestamp);
141            data.readExceptionCode();
142            return NO_ERROR;
143        } break;
144        case RESULT_RECEIVED: {
145            ALOGV("onResultReceived");
146            CHECK_INTERFACE(ICameraDeviceCallbacks, data, reply);
147            CameraMetadata metadata;
148            if (data.readInt32() != 0) {
149                metadata.readFromParcel(const_cast<Parcel*>(&data));
150            } else {
151                ALOGW("No metadata object is present in result");
152            }
153            CaptureResultExtras resultExtras;
154            if (data.readInt32() != 0) {
155                resultExtras.readFromParcel(const_cast<Parcel*>(&data));
156            } else {
157                ALOGW("No capture result extras object is present in result");
158            }
159            onResultReceived(metadata, resultExtras);
160            data.readExceptionCode();
161            return NO_ERROR;
162        } break;
163        default:
164            return BBinder::onTransact(code, data, reply, flags);
165    }
166}
167
168// ----------------------------------------------------------------------------
169
170}; // namespace android
171