2 * Copyright (C) 2010 The Android Open Source Project
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
8 * http://www.apache.org/licenses/LICENSE-2.0
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.
18 #include <sys/types.h>
20 #include <utils/Errors.h>
21 #include <utils/RefBase.h>
22 #include <utils/Vector.h>
23 #include <utils/Timers.h>
25 #include <binder/Parcel.h>
26 #include <binder/IInterface.h>
28 #include <gui/IGraphicBufferProducer.h>
31 // ----------------------------------------------------------------------------
34 REQUEST_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
45 class BpGraphicBufferProducer : public BpInterface<IGraphicBufferProducer>
48 BpGraphicBufferProducer(const sp<IBinder>& impl)
49 : BpInterface<IGraphicBufferProducer>(impl)
53 virtual status_t requestBuffer(int bufferIdx, sp<GraphicBuffer>* buf) {
55 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
56 data.writeInt32(bufferIdx);
57 status_t result =remote()->transact(REQUEST_BUFFER, data, &reply);
58 if (result != NO_ERROR) {
61 bool nonNull = reply.readInt32();
63 *buf = new GraphicBuffer();
66 result = reply.readInt32();
70 virtual status_t setBufferCount(int bufferCount)
73 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
74 data.writeInt32(bufferCount);
75 status_t result =remote()->transact(SET_BUFFER_COUNT, data, &reply);
76 if (result != NO_ERROR) {
79 result = reply.readInt32();
83 virtual status_t dequeueBuffer(int *buf, sp<Fence>* fence, bool async,
84 uint32_t w, uint32_t h, uint32_t format, uint32_t usage) {
86 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
87 data.writeInt32(async);
90 data.writeInt32(format);
91 data.writeInt32(usage);
92 status_t result = remote()->transact(DEQUEUE_BUFFER, data, &reply);
93 if (result != NO_ERROR) {
96 *buf = reply.readInt32();
97 bool nonNull = reply.readInt32();
102 result = reply.readInt32();
106 virtual status_t queueBuffer(int buf,
107 const QueueBufferInput& input, QueueBufferOutput* output) {
109 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
110 data.writeInt32(buf);
112 status_t result = remote()->transact(QUEUE_BUFFER, data, &reply);
113 if (result != NO_ERROR) {
116 memcpy(output, reply.readInplace(sizeof(*output)), sizeof(*output));
117 result = reply.readInt32();
121 virtual void cancelBuffer(int buf, const sp<Fence>& fence) {
123 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
124 data.writeInt32(buf);
125 data.write(*fence.get());
126 remote()->transact(CANCEL_BUFFER, data, &reply);
129 virtual int query(int what, int* value) {
131 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
132 data.writeInt32(what);
133 status_t result = remote()->transact(QUERY, data, &reply);
134 if (result != NO_ERROR) {
137 value[0] = reply.readInt32();
138 result = reply.readInt32();
142 virtual status_t connect(int api, bool producerControlledByApp, QueueBufferOutput* output) {
144 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
145 data.writeInt32(api);
146 data.writeInt32(producerControlledByApp);
147 status_t result = remote()->transact(CONNECT, data, &reply);
148 if (result != NO_ERROR) {
151 memcpy(output, reply.readInplace(sizeof(*output)), sizeof(*output));
152 result = reply.readInt32();
156 virtual status_t disconnect(int api) {
158 data.writeInterfaceToken(IGraphicBufferProducer::getInterfaceDescriptor());
159 data.writeInt32(api);
160 status_t result =remote()->transact(DISCONNECT, data, &reply);
161 if (result != NO_ERROR) {
164 result = reply.readInt32();
169 IMPLEMENT_META_INTERFACE(GraphicBufferProducer, "android.gui.IGraphicBufferProducer");
171 // ----------------------------------------------------------------------
173 status_t BnGraphicBufferProducer::onTransact(
174 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
177 case REQUEST_BUFFER: {
178 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
179 int bufferIdx = data.readInt32();
180 sp<GraphicBuffer> buffer;
181 int result = requestBuffer(bufferIdx, &buffer);
182 reply->writeInt32(buffer != 0);
184 reply->write(*buffer);
186 reply->writeInt32(result);
189 case SET_BUFFER_COUNT: {
190 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
191 int bufferCount = data.readInt32();
192 int result = setBufferCount(bufferCount);
193 reply->writeInt32(result);
196 case DEQUEUE_BUFFER: {
197 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
198 bool async = data.readInt32();
199 uint32_t w = data.readInt32();
200 uint32_t h = data.readInt32();
201 uint32_t format = data.readInt32();
202 uint32_t usage = data.readInt32();
205 int result = dequeueBuffer(&buf, &fence, async, w, h, format, usage);
206 reply->writeInt32(buf);
207 reply->writeInt32(fence != NULL);
209 reply->write(*fence);
211 reply->writeInt32(result);
215 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
216 int buf = data.readInt32();
217 QueueBufferInput input(data);
218 QueueBufferOutput* const output =
219 reinterpret_cast<QueueBufferOutput *>(
220 reply->writeInplace(sizeof(QueueBufferOutput)));
221 status_t result = queueBuffer(buf, input, output);
222 reply->writeInt32(result);
225 case CANCEL_BUFFER: {
226 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
227 int buf = data.readInt32();
228 sp<Fence> fence = new Fence();
229 data.read(*fence.get());
230 cancelBuffer(buf, fence);
234 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
236 int what = data.readInt32();
237 int res = query(what, &value);
238 reply->writeInt32(value);
239 reply->writeInt32(res);
243 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
244 int api = data.readInt32();
245 bool producerControlledByApp = data.readInt32();
246 QueueBufferOutput* const output =
247 reinterpret_cast<QueueBufferOutput *>(
248 reply->writeInplace(sizeof(QueueBufferOutput)));
249 status_t res = connect(api, producerControlledByApp, output);
250 reply->writeInt32(res);
254 CHECK_INTERFACE(IGraphicBufferProducer, data, reply);
255 int api = data.readInt32();
256 status_t res = disconnect(api);
257 reply->writeInt32(res);
261 return BBinder::onTransact(code, data, reply, flags);
264 // ----------------------------------------------------------------------------
266 IGraphicBufferProducer::QueueBufferInput::QueueBufferInput(const Parcel& parcel) {
270 size_t IGraphicBufferProducer::QueueBufferInput::getFlattenedSize() const {
271 return sizeof(timestamp)
272 + sizeof(isAutoTimestamp)
274 + sizeof(scalingMode)
277 + fence->getFlattenedSize();
280 size_t IGraphicBufferProducer::QueueBufferInput::getFdCount() const {
281 return fence->getFdCount();
284 status_t IGraphicBufferProducer::QueueBufferInput::flatten(
285 void*& buffer, size_t& size, int*& fds, size_t& count) const
287 if (size < getFlattenedSize()) {
290 FlattenableUtils::write(buffer, size, timestamp);
291 FlattenableUtils::write(buffer, size, isAutoTimestamp);
292 FlattenableUtils::write(buffer, size, crop);
293 FlattenableUtils::write(buffer, size, scalingMode);
294 FlattenableUtils::write(buffer, size, transform);
295 FlattenableUtils::write(buffer, size, async);
296 return fence->flatten(buffer, size, fds, count);
299 status_t IGraphicBufferProducer::QueueBufferInput::unflatten(
300 void const*& buffer, size_t& size, int const*& fds, size_t& count)
304 + sizeof(isAutoTimestamp)
306 + sizeof(scalingMode)
310 if (size < minNeeded) {
314 FlattenableUtils::read(buffer, size, timestamp);
315 FlattenableUtils::read(buffer, size, isAutoTimestamp);
316 FlattenableUtils::read(buffer, size, crop);
317 FlattenableUtils::read(buffer, size, scalingMode);
318 FlattenableUtils::read(buffer, size, transform);
319 FlattenableUtils::read(buffer, size, async);
322 return fence->unflatten(buffer, size, fds, count);
325 }; // namespace android