1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
|
/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <stdint.h>
#include <sys/types.h>
#include <utils/Parcel.h>
#include <utils/IMemory.h>
#include <ui/ISurface.h>
#include <ui/Overlay.h>
namespace android {
enum {
REGISTER_BUFFERS = IBinder::FIRST_CALL_TRANSACTION,
UNREGISTER_BUFFERS,
POST_BUFFER, // one-way transaction
CREATE_OVERLAY,
};
class BpSurface : public BpInterface<ISurface>
{
public:
BpSurface(const sp<IBinder>& impl)
: BpInterface<ISurface>(impl)
{
}
virtual status_t registerBuffers(int w, int h, int hstride, int vstride,
PixelFormat format, const sp<IMemoryHeap>& heap)
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
data.writeInt32(w);
data.writeInt32(h);
data.writeInt32(hstride);
data.writeInt32(vstride);
data.writeInt32(format);
data.writeStrongBinder(heap->asBinder());
remote()->transact(REGISTER_BUFFERS, data, &reply);
status_t result = reply.readInt32();
return result;
}
virtual void postBuffer(ssize_t offset)
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
data.writeInt32(offset);
remote()->transact(POST_BUFFER, data, &reply, IBinder::FLAG_ONEWAY);
}
virtual void unregisterBuffers()
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
remote()->transact(UNREGISTER_BUFFERS, data, &reply);
}
virtual sp<OverlayRef> createOverlay(
uint32_t w, uint32_t h, int32_t format)
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
data.writeInt32(w);
data.writeInt32(h);
data.writeInt32(format);
remote()->transact(CREATE_OVERLAY, data, &reply);
return OverlayRef::readFromParcel(reply);
}
};
IMPLEMENT_META_INTERFACE(Surface, "android.ui.ISurface");
// ----------------------------------------------------------------------
#define CHECK_INTERFACE(interface, data, reply) \
do { if (!data.enforceInterface(interface::getInterfaceDescriptor())) { \
LOGW("Call incorrectly routed to " #interface); \
return PERMISSION_DENIED; \
} } while (0)
status_t BnSurface::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case REGISTER_BUFFERS: {
CHECK_INTERFACE(ISurface, data, reply);
int w = data.readInt32();
int h = data.readInt32();
int hs= data.readInt32();
int vs= data.readInt32();
PixelFormat f = data.readInt32();
sp<IMemoryHeap> heap(interface_cast<IMemoryHeap>(data.readStrongBinder()));
status_t err = registerBuffers(w,h,hs,vs,f,heap);
reply->writeInt32(err);
return NO_ERROR;
} break;
case UNREGISTER_BUFFERS: {
CHECK_INTERFACE(ISurface, data, reply);
unregisterBuffers();
return NO_ERROR;
} break;
case POST_BUFFER: {
CHECK_INTERFACE(ISurface, data, reply);
ssize_t offset = data.readInt32();
postBuffer(offset);
return NO_ERROR;
} break;
case CREATE_OVERLAY: {
CHECK_INTERFACE(ISurface, data, reply);
int w = data.readInt32();
int h = data.readInt32();
int f = data.readInt32();
sp<OverlayRef> o = createOverlay(w, h, w);
return OverlayRef::writeToParcel(reply, o);
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
}; // namespace android
|
