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/*
* 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 <ui/GraphicBuffer.h>
#include <surfaceflinger/Surface.h>
#include <surfaceflinger/ISurface.h>
namespace android {
// ----------------------------------------------------------------------
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;
}
};
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;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
}; // namespace android
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