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
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
|
/*
* 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.
*/
#define LOG_TAG "ISurface"
#include <stdio.h>
#include <stdint.h>
#include <sys/types.h>
#include <binder/Parcel.h>
#include <binder/IMemory.h>
#include <ui/Overlay.h>
#include <ui/GraphicBuffer.h>
#include <surfaceflinger/Surface.h>
#include <surfaceflinger/ISurface.h>
namespace android {
// ----------------------------------------------------------------------
ISurface::BufferHeap::BufferHeap()
: w(0), h(0), hor_stride(0), ver_stride(0), format(0),
transform(0), flags(0)
{
}
ISurface::BufferHeap::BufferHeap(uint32_t w, uint32_t h,
int32_t hor_stride, int32_t ver_stride,
PixelFormat format, const sp<IMemoryHeap>& heap)
: w(w), h(h), hor_stride(hor_stride), ver_stride(ver_stride),
format(format), transform(0), flags(0), heap(heap)
{
}
ISurface::BufferHeap::BufferHeap(uint32_t w, uint32_t h,
int32_t hor_stride, int32_t ver_stride,
PixelFormat format, uint32_t transform, uint32_t flags,
const sp<IMemoryHeap>& heap)
: w(w), h(h), hor_stride(hor_stride), ver_stride(ver_stride),
format(format), transform(transform), flags(flags), heap(heap)
{
}
ISurface::BufferHeap::~BufferHeap()
{
}
// ----------------------------------------------------------------------
class BpSurface : public BpInterface<ISurface>
{
public:
BpSurface(const sp<IBinder>& impl)
: BpInterface<ISurface>(impl)
{
}
virtual sp<GraphicBuffer> requestBuffer(int bufferIdx,
uint32_t w, uint32_t h, uint32_t format, uint32_t usage)
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
data.writeInt32(bufferIdx);
data.writeInt32(w);
data.writeInt32(h);
data.writeInt32(format);
data.writeInt32(usage);
remote()->transact(REQUEST_BUFFER, data, &reply);
sp<GraphicBuffer> buffer = new GraphicBuffer();
reply.read(*buffer);
return buffer;
}
virtual status_t setBufferCount(int bufferCount)
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
data.writeInt32(bufferCount);
remote()->transact(SET_BUFFER_COUNT, data, &reply);
status_t err = reply.readInt32();
return err;
}
virtual status_t registerBuffers(const BufferHeap& buffers)
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
data.writeInt32(buffers.w);
data.writeInt32(buffers.h);
data.writeInt32(buffers.hor_stride);
data.writeInt32(buffers.ver_stride);
data.writeInt32(buffers.format);
data.writeInt32(buffers.transform);
data.writeInt32(buffers.flags);
data.writeStrongBinder(buffers.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, int32_t orientation)
{
Parcel data, reply;
data.writeInterfaceToken(ISurface::getInterfaceDescriptor());
data.writeInt32(w);
data.writeInt32(h);
data.writeInt32(format);
data.writeInt32(orientation);
remote()->transact(CREATE_OVERLAY, data, &reply);
return OverlayRef::readFromParcel(reply);
}
};
IMPLEMENT_META_INTERFACE(Surface, "android.ui.ISurface");
// ----------------------------------------------------------------------
status_t BnSurface::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case REQUEST_BUFFER: {
CHECK_INTERFACE(ISurface, data, reply);
int bufferIdx = data.readInt32();
uint32_t w = data.readInt32();
uint32_t h = data.readInt32();
uint32_t format = data.readInt32();
uint32_t usage = data.readInt32();
sp<GraphicBuffer> buffer(requestBuffer(bufferIdx, w, h, format, usage));
if (buffer == NULL)
return BAD_VALUE;
return reply->write(*buffer);
}
case SET_BUFFER_COUNT: {
CHECK_INTERFACE(ISurface, data, reply);
int bufferCount = data.readInt32();
status_t err = setBufferCount(bufferCount);
reply->writeInt32(err);
return NO_ERROR;
}
case REGISTER_BUFFERS: {
CHECK_INTERFACE(ISurface, data, reply);
BufferHeap buffer;
buffer.w = data.readInt32();
buffer.h = data.readInt32();
buffer.hor_stride = data.readInt32();
buffer.ver_stride= data.readInt32();
buffer.format = data.readInt32();
buffer.transform = data.readInt32();
buffer.flags = data.readInt32();
buffer.heap = interface_cast<IMemoryHeap>(data.readStrongBinder());
status_t err = registerBuffers(buffer);
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();
int orientation = data.readInt32();
sp<OverlayRef> o = createOverlay(w, h, f, orientation);
return OverlayRef::writeToParcel(reply, o);
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
}; // namespace android
|
