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/ISurface.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};
44
45class BpSurfaceComposerClient : public BpInterface<ISurfaceComposerClient>
46{
47public:
48    BpSurfaceComposerClient(const sp<IBinder>& impl)
49        : BpInterface<ISurfaceComposerClient>(impl)
50    {
51    }
52
53    virtual sp<ISurface> createSurface( surface_data_t* params,
54                                        const String8& name,
55                                        uint32_t w,
56                                        uint32_t h,
57                                        PixelFormat format,
58                                        uint32_t flags)
59    {
60        Parcel data, reply;
61        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
62        data.writeString8(name);
63        data.writeInt32(w);
64        data.writeInt32(h);
65        data.writeInt32(format);
66        data.writeInt32(flags);
67        remote()->transact(CREATE_SURFACE, data, &reply);
68        params->readFromParcel(reply);
69        return interface_cast<ISurface>(reply.readStrongBinder());
70    }
71
72    virtual status_t destroySurface(SurfaceID sid)
73    {
74        Parcel data, reply;
75        data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
76        data.writeInt32(sid);
77        remote()->transact(DESTROY_SURFACE, data, &reply);
78        return reply.readInt32();
79    }
80};
81
82IMPLEMENT_META_INTERFACE(SurfaceComposerClient, "android.ui.ISurfaceComposerClient");
83
84// ----------------------------------------------------------------------
85
86status_t BnSurfaceComposerClient::onTransact(
87    uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
88{
89     switch(code) {
90        case CREATE_SURFACE: {
91            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
92            surface_data_t params;
93            String8 name = data.readString8();
94            uint32_t w = data.readInt32();
95            uint32_t h = data.readInt32();
96            PixelFormat format = data.readInt32();
97            uint32_t flags = data.readInt32();
98            sp<ISurface> s = createSurface(&params, name, w, h,
99                    format, flags);
100            params.writeToParcel(reply);
101            reply->writeStrongBinder(s->asBinder());
102            return NO_ERROR;
103        } break;
104        case DESTROY_SURFACE: {
105            CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
106            reply->writeInt32( destroySurface( data.readInt32() ) );
107            return NO_ERROR;
108        } break;
109        default:
110            return BBinder::onTransact(code, data, reply, flags);
111    }
112}
113
114// ----------------------------------------------------------------------
115
116status_t ISurfaceComposerClient::surface_data_t::readFromParcel(const Parcel& parcel)
117{
118    token    = parcel.readInt32();
119    identity = parcel.readInt32();
120    return NO_ERROR;
121}
122
123status_t ISurfaceComposerClient::surface_data_t::writeToParcel(Parcel* parcel) const
124{
125    parcel->writeInt32(token);
126    parcel->writeInt32(identity);
127    return NO_ERROR;
128}
129
130}; // namespace android
131