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