19a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis/* 29a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * Copyright (C) 2011 The Android Open Source Project 39a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * 49a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * Licensed under the Apache License, Version 2.0 (the "License"); 59a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * you may not use this file except in compliance with the License. 69a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * You may obtain a copy of the License at 79a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * 89a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * http://www.apache.org/licenses/LICENSE-2.0 99a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * 109a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * Unless required by applicable law or agreed to in writing, software 119a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * distributed under the License is distributed on an "AS IS" BASIS, 129a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * See the License for the specific language governing permissions and 149a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis * limitations under the License. 159a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis */ 169a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 179a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis// tag as surfaceflinger 189a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis#define LOG_TAG "SurfaceFlinger" 199a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 209a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis#include <stdint.h> 219a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis#include <sys/types.h> 229a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 239a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis#include <binder/Parcel.h> 249a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 259a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis#include <ui/GraphicBuffer.h> 269a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 2790ac799241f077a7b7e6c1875fd933864c8dd2a7Mathias Agopian#include <gui/IGraphicBufferAlloc.h> 289a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 299a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis// --------------------------------------------------------------------------- 309a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 319a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennisnamespace android { 329a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 339a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennisenum { 349a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis CREATE_GRAPHIC_BUFFER = IBinder::FIRST_CALL_TRANSACTION, 359a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis}; 369a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 379a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennisclass BpGraphicBufferAlloc : public BpInterface<IGraphicBufferAlloc> 389a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis{ 399a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennispublic: 409a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis BpGraphicBufferAlloc(const sp<IBinder>& impl) 419a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis : BpInterface<IGraphicBufferAlloc>(impl) 429a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis { 439a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis } 449a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 453be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza virtual ~BpGraphicBufferAlloc(); 463be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza 473be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza virtual sp<GraphicBuffer> createGraphicBuffer(uint32_t width, 483be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza uint32_t height, PixelFormat format, uint32_t usage, 49d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza std::string requestorName, status_t* error) { 509a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis Parcel data, reply; 514cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian data.writeInterfaceToken(IGraphicBufferAlloc::getInterfaceDescriptor()); 523be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza data.writeUint32(width); 533be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza data.writeUint32(height); 543be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza data.writeInt32(static_cast<int32_t>(format)); 553be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza data.writeUint32(usage); 56d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza if (requestorName.empty()) { 57d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza requestorName += "[PID "; 58d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza requestorName += std::to_string(getpid()); 59d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza requestorName += ']'; 60d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza } 61d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza data.writeUtf8AsUtf16(requestorName); 629a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis remote()->transact(CREATE_GRAPHIC_BUFFER, data, &reply); 639a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis sp<GraphicBuffer> graphicBuffer; 64d9e8c64c3dce1612eb948a5c16ba4ff62202b423Mathias Agopian status_t result = reply.readInt32(); 65d9e8c64c3dce1612eb948a5c16ba4ff62202b423Mathias Agopian if (result == NO_ERROR) { 669a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis graphicBuffer = new GraphicBuffer(); 67d69097f936d9780957a51ce77335ae409b32aaa3Jamie Gennis result = reply.read(*graphicBuffer); 683d6022a43e18dbb209da485e1c6353e916d5de12Dan Stoza if (result != NO_ERROR) { 693d6022a43e18dbb209da485e1c6353e916d5de12Dan Stoza graphicBuffer.clear(); 703d6022a43e18dbb209da485e1c6353e916d5de12Dan Stoza } 714cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // reply.readStrongBinder(); 724cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // here we don't even have to read the BufferReference from 734cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // the parcel, it'll die with the parcel. 749a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis } 75d9e8c64c3dce1612eb948a5c16ba4ff62202b423Mathias Agopian *error = result; 769a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis return graphicBuffer; 779a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis } 789a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis}; 799a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 803be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza// Out-of-line virtual method definition to trigger vtable emission in this 813be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza// translation unit (see clang warning -Wweak-vtables) 823be1c6b60a188dc10025e2ce156c11fac050625dDan StozaBpGraphicBufferAlloc::~BpGraphicBufferAlloc() {} 833be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza 849a78c90cd46b2a3bd637b056873149d3b94384b4Jamie GennisIMPLEMENT_META_INTERFACE(GraphicBufferAlloc, "android.ui.IGraphicBufferAlloc"); 859a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 869a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis// ---------------------------------------------------------------------- 879a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 889a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennisstatus_t BnGraphicBufferAlloc::onTransact( 899a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 909a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis{ 919a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis // codes that don't require permission check 929a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 933be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza // BufferReference just keeps a strong reference to a GraphicBuffer until it 943be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza // is destroyed (that is, until no local or remote process have a reference 953be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza // to it). 964cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian class BufferReference : public BBinder { 973be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza sp<GraphicBuffer> mBuffer; 984cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian public: 993be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza BufferReference(const sp<GraphicBuffer>& buffer) : mBuffer(buffer) {} 1004cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian }; 1014cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian 1024cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian 1033be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza switch (code) { 1049a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis case CREATE_GRAPHIC_BUFFER: { 1059a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis CHECK_INTERFACE(IGraphicBufferAlloc, data, reply); 1063be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza uint32_t width = data.readUint32(); 1073be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza uint32_t height = data.readUint32(); 1083be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza PixelFormat format = static_cast<PixelFormat>(data.readInt32()); 1093be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza uint32_t usage = data.readUint32(); 110d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza status_t error = NO_ERROR; 111d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza std::string requestorName; 112d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza data.readUtf8FromUtf16(&requestorName); 113d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza sp<GraphicBuffer> result = createGraphicBuffer(width, height, 114d4079aff759713e7c7dd14cecb585a7290e80772Dan Stoza format, usage, requestorName, &error); 115d9e8c64c3dce1612eb948a5c16ba4ff62202b423Mathias Agopian reply->writeInt32(error); 1169a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis if (result != 0) { 1179a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis reply->write(*result); 1184cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // We add a BufferReference to this parcel to make sure the 1194cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // buffer stays alive until the GraphicBuffer object on 1204cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // the other side has been created. 1214cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // This is needed so that the buffer handle can be 1224cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // registered before the buffer is destroyed on implementations 1234cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian // that do not use file-descriptors to track their buffers. 1244cb18881b55b82a24873ccd8e298bc2d5a9c17e5Mathias Agopian reply->writeStrongBinder( new BufferReference(result) ); 1259a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis } 1269a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis return NO_ERROR; 1273be1c6b60a188dc10025e2ce156c11fac050625dDan Stoza } 1289a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis default: 1299a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis return BBinder::onTransact(code, data, reply, flags); 1309a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis } 1319a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis} 1329a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis 1339a78c90cd46b2a3bd637b056873149d3b94384b4Jamie Gennis}; // namespace android 134