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 status_t createSurface(const String8& name, uint32_t w,
55            uint32_t h, PixelFormat format, uint32_t flags,
56            sp<IBinder>* handle,
57            sp<IGraphicBufferProducer>* gbp) {
58        Parcel data, reply;
59        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
60        data.writeString8(name);
61        data.writeInt32(w);
62        data.writeInt32(h);
63        data.writeInt32(format);
64        data.writeInt32(flags);
65        remote()->transact(CREATE_SURFACE, data, &reply);
66        *handle = reply.readStrongBinder();
67        *gbp = interface_cast<IGraphicBufferProducer>(reply.readStrongBinder());
68        return reply.readInt32();
69    }
70
71    virtual status_t destroySurface(const sp<IBinder>& handle) {
72        Parcel data, reply;
73        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
74        data.writeStrongBinder(handle);
75        remote()->transact(DESTROY_SURFACE, data, &reply);
76        return reply.readInt32();
77    }
78
79    virtual status_t clearLayerFrameStats(const sp<IBinder>& handle) const {
80        Parcel data, reply;
81        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
82        data.writeStrongBinder(handle);
83        remote()->transact(CLEAR_LAYER_FRAME_STATS, data, &reply);
84        return reply.readInt32();
85    }
86
87    virtual status_t getLayerFrameStats(const sp<IBinder>& handle, FrameStats* outStats) const {
88        Parcel data, reply;
89        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
90        data.writeStrongBinder(handle);
91        remote()->transact(GET_LAYER_FRAME_STATS, data, &reply);
92        reply.read(*outStats);
93        return reply.readInt32();
94    }
95};
96
97IMPLEMENT_META_INTERFACE(SurfaceComposerClient, "android.ui.ISurfaceComposerClient");
98
99// ----------------------------------------------------------------------
100
101status_t BnSurfaceComposerClient::onTransact(
102    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
103{
104     switch(code) {
105        case CREATE_SURFACE: {
106            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
107            String8 name = data.readString8();
108            uint32_t w = data.readInt32();
109            uint32_t h = data.readInt32();
110            PixelFormat format = data.readInt32();
111            uint32_t flags = data.readInt32();
112            sp<IBinder> handle;
113            sp<IGraphicBufferProducer> gbp;
114            status_t result = createSurface(name, w, h, format, flags,
115                    &handle, &gbp);
116            reply->writeStrongBinder(handle);
117            reply->writeStrongBinder(gbp->asBinder());
118            reply->writeInt32(result);
119            return NO_ERROR;
120        } break;
121        case DESTROY_SURFACE: {
122            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
123            reply->writeInt32(destroySurface( data.readStrongBinder() ) );
124            return NO_ERROR;
125        } break;
126       case CLEAR_LAYER_FRAME_STATS: {
127            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
128            sp<IBinder> handle = data.readStrongBinder();
129            status_t result = clearLayerFrameStats(handle);
130            reply->writeInt32(result);
131            return NO_ERROR;
132        } break;
133        case GET_LAYER_FRAME_STATS: {
134            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
135            sp<IBinder> handle = data.readStrongBinder();
136            FrameStats stats;
137            status_t result = getLayerFrameStats(handle, &stats);
138            reply->write(stats);
139            reply->writeInt32(result);
140            return NO_ERROR;
141        } break;
142        default:
143            return BBinder::onTransact(code, data, reply, flags);
144    }
145}
146
147}; // namespace android
148