109 lines
3.4 KiB
C++
109 lines
3.4 KiB
C++
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/*
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* Copyright (C) 2011 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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// tag as surfaceflinger
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#define LOG_TAG "SurfaceFlinger"
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#include <stdint.h>
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#include <sys/types.h>
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#include <binder/Parcel.h>
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#include <ui/GraphicBuffer.h>
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#include <surfaceflinger/IGraphicBufferAlloc.h>
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// ---------------------------------------------------------------------------
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namespace android {
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enum {
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CREATE_GRAPHIC_BUFFER = IBinder::FIRST_CALL_TRANSACTION,
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FREE_ALL_GRAPHIC_BUFFERS_EXCEPT,
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};
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class BpGraphicBufferAlloc : public BpInterface<IGraphicBufferAlloc>
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{
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public:
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BpGraphicBufferAlloc(const sp<IBinder>& impl)
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: BpInterface<IGraphicBufferAlloc>(impl)
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{
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}
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virtual sp<GraphicBuffer> createGraphicBuffer(uint32_t w, uint32_t h,
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PixelFormat format, uint32_t usage) {
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Parcel data, reply;
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data.writeInterfaceToken(
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IGraphicBufferAlloc::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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remote()->transact(CREATE_GRAPHIC_BUFFER, data, &reply);
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sp<GraphicBuffer> graphicBuffer;
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bool nonNull = (bool)reply.readInt32();
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if (nonNull) {
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graphicBuffer = new GraphicBuffer();
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reply.read(*graphicBuffer);
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}
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return graphicBuffer;
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}
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virtual void freeAllGraphicBuffersExcept(int bufIdx) {
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Parcel data, reply;
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data.writeInterfaceToken(
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IGraphicBufferAlloc::getInterfaceDescriptor());
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data.writeInt32(bufIdx);
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remote()->transact(FREE_ALL_GRAPHIC_BUFFERS_EXCEPT, data, &reply);
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}
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};
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IMPLEMENT_META_INTERFACE(GraphicBufferAlloc, "android.ui.IGraphicBufferAlloc");
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// ----------------------------------------------------------------------
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status_t BnGraphicBufferAlloc::onTransact(
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uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
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{
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// codes that don't require permission check
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switch(code) {
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case CREATE_GRAPHIC_BUFFER: {
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CHECK_INTERFACE(IGraphicBufferAlloc, data, reply);
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uint32_t w = data.readInt32();
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uint32_t h = data.readInt32();
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PixelFormat format = data.readInt32();
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uint32_t usage = data.readInt32();
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sp<GraphicBuffer> result(createGraphicBuffer(w, h, format, usage));
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reply->writeInt32(result != 0);
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if (result != 0) {
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reply->write(*result);
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}
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return NO_ERROR;
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} break;
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case FREE_ALL_GRAPHIC_BUFFERS_EXCEPT: {
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CHECK_INTERFACE(IGraphicBufferAlloc, data, reply);
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int bufIdx = data.readInt32();
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freeAllGraphicBuffersExcept(bufIdx);
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return NO_ERROR;
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} break;
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default:
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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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