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
38 namespace android {
39
40 enum {
41 CREATE_SURFACE = IBinder::FIRST_CALL_TRANSACTION,
42 DESTROY_SURFACE
43 };
44
45 class BpSurfaceComposerClient : public BpInterface<ISurfaceComposerClient>
46 {
47 public:
BpSurfaceComposerClient(const sp<IBinder> & impl)48 BpSurfaceComposerClient(const sp<IBinder>& impl)
49 : BpInterface<ISurfaceComposerClient>(impl) {
50 }
51
createSurface(const String8 & name,uint32_t w,uint32_t h,PixelFormat format,uint32_t flags,sp<IBinder> * handle,sp<IGraphicBufferProducer> * gbp)52 virtual status_t createSurface(const String8& name, uint32_t w,
53 uint32_t h, PixelFormat format, uint32_t flags,
54 sp<IBinder>* handle,
55 sp<IGraphicBufferProducer>* gbp) {
56 Parcel data, reply;
57 data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
58 data.writeString8(name);
59 data.writeInt32(w);
60 data.writeInt32(h);
61 data.writeInt32(format);
62 data.writeInt32(flags);
63 remote()->transact(CREATE_SURFACE, data, &reply);
64 *handle = reply.readStrongBinder();
65 *gbp = interface_cast<IGraphicBufferProducer>(reply.readStrongBinder());
66 return reply.readInt32();
67 }
68
destroySurface(const sp<IBinder> & handle)69 virtual status_t destroySurface(const sp<IBinder>& handle) {
70 Parcel data, reply;
71 data.writeInterfaceToken(ISurfaceComposerClient::getInterfaceDescriptor());
72 data.writeStrongBinder(handle);
73 remote()->transact(DESTROY_SURFACE, data, &reply);
74 return reply.readInt32();
75 }
76 };
77
78 IMPLEMENT_META_INTERFACE(SurfaceComposerClient, "android.ui.ISurfaceComposerClient");
79
80 // ----------------------------------------------------------------------
81
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)82 status_t BnSurfaceComposerClient::onTransact(
83 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
84 {
85 switch(code) {
86 case CREATE_SURFACE: {
87 CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
88 String8 name = data.readString8();
89 uint32_t w = data.readInt32();
90 uint32_t h = data.readInt32();
91 PixelFormat format = data.readInt32();
92 uint32_t flags = data.readInt32();
93 sp<IBinder> handle;
94 sp<IGraphicBufferProducer> gbp;
95 status_t result = createSurface(name, w, h, format, flags,
96 &handle, &gbp);
97 reply->writeStrongBinder(handle);
98 reply->writeStrongBinder(gbp->asBinder());
99 reply->writeInt32(result);
100 return NO_ERROR;
101 } break;
102 case DESTROY_SURFACE: {
103 CHECK_INTERFACE(ISurfaceComposerClient, data, reply);
104 reply->writeInt32( destroySurface( data.readStrongBinder() ) );
105 return NO_ERROR;
106 } break;
107 default:
108 return BBinder::onTransact(code, data, reply, flags);
109 }
110 }
111
112 }; // namespace android
113