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 CLEAR_LAYER_FRAME_STATS,
44 GET_LAYER_FRAME_STATS
45 };
46
47 class BpSurfaceComposerClient : public BpInterface<ISurfaceComposerClient>
48 {
49 public:
BpSurfaceComposerClient(const sp<IBinder> & impl)50 BpSurfaceComposerClient(const sp<IBinder>& impl)
51 : BpInterface<ISurfaceComposerClient>(impl) {
52 }
53
createSurface(const String8 & name,uint32_t w,uint32_t h,PixelFormat format,uint32_t flags,sp<IBinder> * handle,sp<IGraphicBufferProducer> * gbp)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
destroySurface(const sp<IBinder> & handle)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
clearLayerFrameStats(const sp<IBinder> & handle) const79 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
getLayerFrameStats(const sp<IBinder> & handle,FrameStats * outStats) const87 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
97 IMPLEMENT_META_INTERFACE(SurfaceComposerClient, "android.ui.ISurfaceComposerClient");
98
99 // ----------------------------------------------------------------------
100
onTransact(uint32_t code,const Parcel & data,Parcel * reply,uint32_t flags)101 status_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