1/*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17// tag as surfaceflinger
18#define LOG_TAG "SurfaceFlinger"
19
20#include <stdio.h>
21#include <stdint.h>
22#include <sys/types.h>
23
24#include <binder/Parcel.h>
25#include <binder/IMemory.h>
26#include <binder/IPCThreadState.h>
27#include <binder/IServiceManager.h>
28
29#include <ui/Point.h>
30#include <ui/Rect.h>
31
32#include <gui/IGraphicBufferProducer.h>
33#include <gui/ISurfaceComposerClient.h>
34#include <private/gui/LayerState.h>
35
36// ---------------------------------------------------------------------------
37
38namespace android {
39
40enum {
41    CREATE_SURFACE = IBinder::FIRST_CALL_TRANSACTION,
42    DESTROY_SURFACE,
43    CLEAR_LAYER_FRAME_STATS,
44    GET_LAYER_FRAME_STATS
45};
46
47class BpSurfaceComposerClient : public BpInterface<ISurfaceComposerClient>
48{
49public:
50    BpSurfaceComposerClient(const sp<IBinder>& impl)
51        : BpInterface<ISurfaceComposerClient>(impl) {
52    }
53
54    virtual ~BpSurfaceComposerClient();
55
56    virtual status_t createSurface(const String8& name, uint32_t width,
57            uint32_t height, PixelFormat format, uint32_t flags,
58            sp<IBinder>* handle,
59            sp<IGraphicBufferProducer>* gbp) {
60        Parcel data, reply;
61        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
62        data.writeString8(name);
63        data.writeUint32(width);
64        data.writeUint32(height);
65        data.writeInt32(static_cast<int32_t>(format));
66        data.writeUint32(flags);
67        remote()->transact(CREATE_SURFACE, data, &reply);
68        *handle = reply.readStrongBinder();
69        *gbp = interface_cast<IGraphicBufferProducer>(reply.readStrongBinder());
70        return reply.readInt32();
71    }
72
73    virtual status_t destroySurface(const sp<IBinder>& handle) {
74        Parcel data, reply;
75        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
76        data.writeStrongBinder(handle);
77        remote()->transact(DESTROY_SURFACE, data, &reply);
78        return reply.readInt32();
79    }
80
81    virtual status_t clearLayerFrameStats(const sp<IBinder>& handle) const {
82        Parcel data, reply;
83        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
84        data.writeStrongBinder(handle);
85        remote()->transact(CLEAR_LAYER_FRAME_STATS, data, &reply);
86        return reply.readInt32();
87    }
88
89    virtual status_t getLayerFrameStats(const sp<IBinder>& handle, FrameStats* outStats) const {
90        Parcel data, reply;
91        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
92        data.writeStrongBinder(handle);
93        remote()->transact(GET_LAYER_FRAME_STATS, data, &reply);
94        reply.read(*outStats);
95        return reply.readInt32();
96    }
97};
98
99// Out-of-line virtual method definition to trigger vtable emission in this
100// translation unit (see clang warning -Wweak-vtables)
101BpSurfaceComposerClient::~BpSurfaceComposerClient() {}
102
103IMPLEMENT_META_INTERFACE(SurfaceComposerClient, "android.ui.ISurfaceComposerClient");
104
105// ----------------------------------------------------------------------
106
107status_t BnSurfaceComposerClient::onTransact(
108    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
109{
110     switch(code) {
111        case CREATE_SURFACE: {
112            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
113            String8 name = data.readString8();
114            uint32_t width = data.readUint32();
115            uint32_t height = data.readUint32();
116            PixelFormat format = static_cast<PixelFormat>(data.readInt32());
117            uint32_t createFlags = data.readUint32();
118            sp<IBinder> handle;
119            sp<IGraphicBufferProducer> gbp;
120            status_t result = createSurface(name, width, height, format,
121                    createFlags, &handle, &gbp);
122            reply->writeStrongBinder(handle);
123            reply->writeStrongBinder(IInterface::asBinder(gbp));
124            reply->writeInt32(result);
125            return NO_ERROR;
126        }
127        case DESTROY_SURFACE: {
128            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
129            reply->writeInt32(destroySurface( data.readStrongBinder() ) );
130            return NO_ERROR;
131        }
132       case CLEAR_LAYER_FRAME_STATS: {
133            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
134            sp<IBinder> handle = data.readStrongBinder();
135            status_t result = clearLayerFrameStats(handle);
136            reply->writeInt32(result);
137            return NO_ERROR;
138        }
139        case GET_LAYER_FRAME_STATS: {
140            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
141            sp<IBinder> handle = data.readStrongBinder();
142            FrameStats stats;
143            status_t result = getLayerFrameStats(handle, &stats);
144            reply->write(stats);
145            reply->writeInt32(result);
146            return NO_ERROR;
147        }
148        default:
149            return BBinder::onTransact(code, data, reply, flags);
150    }
151}
152
153}; // namespace android
154