24202f5676
indeed, connect and queueBuffer return the same data, so it's easier to have them use the same protocol. Change-Id: I4f9fa3be0a80c9ab0a7a4039b282ae843aab02e1
272 lines
9.1 KiB
C++
272 lines
9.1 KiB
C++
/*
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* Copyright (C) 2010 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <utils/RefBase.h>
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#include <utils/Vector.h>
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#include <utils/Timers.h>
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#include <binder/Parcel.h>
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#include <binder/IInterface.h>
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#include <gui/ISurfaceTexture.h>
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namespace android {
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// ----------------------------------------------------------------------------
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enum {
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REQUEST_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
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SET_BUFFER_COUNT,
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DEQUEUE_BUFFER,
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QUEUE_BUFFER,
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CANCEL_BUFFER,
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QUERY,
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SET_SYNCHRONOUS_MODE,
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CONNECT,
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DISCONNECT,
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};
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class BpSurfaceTexture : public BpInterface<ISurfaceTexture>
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{
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public:
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BpSurfaceTexture(const sp<IBinder>& impl)
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: BpInterface<ISurfaceTexture>(impl)
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{
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}
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virtual status_t requestBuffer(int bufferIdx, sp<GraphicBuffer>* buf) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(bufferIdx);
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status_t result =remote()->transact(REQUEST_BUFFER, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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bool nonNull = reply.readInt32();
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if (nonNull) {
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*buf = new GraphicBuffer();
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reply.read(**buf);
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}
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result = reply.readInt32();
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return result;
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}
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virtual status_t setBufferCount(int bufferCount)
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{
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(bufferCount);
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status_t result =remote()->transact(SET_BUFFER_COUNT, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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result = reply.readInt32();
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return result;
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}
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virtual status_t dequeueBuffer(int *buf, uint32_t w, uint32_t h,
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uint32_t format, uint32_t usage) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(w);
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data.writeInt32(h);
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data.writeInt32(format);
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data.writeInt32(usage);
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status_t result = remote()->transact(DEQUEUE_BUFFER, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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*buf = reply.readInt32();
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result = reply.readInt32();
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return result;
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}
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virtual status_t queueBuffer(int buf,
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const QueueBufferInput& input, QueueBufferOutput* output) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(buf);
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memcpy(data.writeInplace(sizeof(input)), &input, sizeof(input));
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status_t result = remote()->transact(QUEUE_BUFFER, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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memcpy(output, reply.readInplace(sizeof(*output)), sizeof(*output));
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result = reply.readInt32();
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return result;
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}
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virtual void cancelBuffer(int buf) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(buf);
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remote()->transact(CANCEL_BUFFER, data, &reply);
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}
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virtual int query(int what, int* value) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(what);
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status_t result = remote()->transact(QUERY, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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value[0] = reply.readInt32();
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result = reply.readInt32();
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return result;
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}
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virtual status_t setSynchronousMode(bool enabled) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(enabled);
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status_t result = remote()->transact(SET_SYNCHRONOUS_MODE, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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result = reply.readInt32();
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return result;
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}
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virtual status_t connect(int api, QueueBufferOutput* output) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(api);
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status_t result = remote()->transact(CONNECT, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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memcpy(output, reply.readInplace(sizeof(*output)), sizeof(*output));
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result = reply.readInt32();
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return result;
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}
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virtual status_t disconnect(int api) {
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Parcel data, reply;
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data.writeInterfaceToken(ISurfaceTexture::getInterfaceDescriptor());
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data.writeInt32(api);
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status_t result =remote()->transact(DISCONNECT, data, &reply);
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if (result != NO_ERROR) {
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return result;
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}
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result = reply.readInt32();
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return result;
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}
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};
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IMPLEMENT_META_INTERFACE(SurfaceTexture, "android.gui.SurfaceTexture");
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// ----------------------------------------------------------------------
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status_t BnSurfaceTexture::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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switch(code) {
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case REQUEST_BUFFER: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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int bufferIdx = data.readInt32();
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sp<GraphicBuffer> buffer;
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int result = requestBuffer(bufferIdx, &buffer);
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reply->writeInt32(buffer != 0);
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if (buffer != 0) {
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reply->write(*buffer);
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}
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reply->writeInt32(result);
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return NO_ERROR;
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} break;
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case SET_BUFFER_COUNT: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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int bufferCount = data.readInt32();
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int result = setBufferCount(bufferCount);
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reply->writeInt32(result);
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return NO_ERROR;
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} break;
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case DEQUEUE_BUFFER: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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uint32_t w = data.readInt32();
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uint32_t h = data.readInt32();
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uint32_t format = data.readInt32();
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uint32_t usage = data.readInt32();
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int buf;
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int result = dequeueBuffer(&buf, w, h, format, usage);
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reply->writeInt32(buf);
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reply->writeInt32(result);
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return NO_ERROR;
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} break;
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case QUEUE_BUFFER: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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int buf = data.readInt32();
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QueueBufferInput const* const input =
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reinterpret_cast<QueueBufferInput const *>(
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data.readInplace(sizeof(QueueBufferInput)));
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QueueBufferOutput* const output =
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reinterpret_cast<QueueBufferOutput *>(
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reply->writeInplace(sizeof(QueueBufferOutput)));
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status_t result = queueBuffer(buf, *input, output);
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reply->writeInt32(result);
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return NO_ERROR;
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} break;
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case CANCEL_BUFFER: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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int buf = data.readInt32();
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cancelBuffer(buf);
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return NO_ERROR;
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} break;
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case QUERY: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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int value;
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int what = data.readInt32();
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int res = query(what, &value);
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reply->writeInt32(value);
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reply->writeInt32(res);
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return NO_ERROR;
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} break;
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case SET_SYNCHRONOUS_MODE: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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bool enabled = data.readInt32();
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status_t res = setSynchronousMode(enabled);
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reply->writeInt32(res);
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return NO_ERROR;
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} break;
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case CONNECT: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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int api = data.readInt32();
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QueueBufferOutput* const output =
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reinterpret_cast<QueueBufferOutput *>(
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reply->writeInplace(sizeof(QueueBufferOutput)));
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status_t res = connect(api, output);
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reply->writeInt32(res);
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return NO_ERROR;
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} break;
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case DISCONNECT: {
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CHECK_INTERFACE(ISurfaceTexture, data, reply);
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int api = data.readInt32();
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status_t res = disconnect(api);
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reply->writeInt32(res);
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return NO_ERROR;
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} break;
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}
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return BBinder::onTransact(code, data, reply, flags);
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}
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// ----------------------------------------------------------------------------
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}; // namespace android
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