1 /* 2 * Copyright (C) 2009 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef ANDROID_RS_THREAD_IO_H 18 #define ANDROID_RS_THREAD_IO_H 19 20 #include "rsUtils.h" 21 #include "rsFifoSocket.h" 22 23 // --------------------------------------------------------------------------- 24 namespace android { 25 namespace renderscript { 26 27 class Context; 28 29 class ThreadIO { 30 public: 31 ThreadIO(); 32 ~ThreadIO(); 33 34 void init(); 35 void shutdown(); 36 getMaxInlineSize()37 size_t getMaxInlineSize() { 38 return mMaxInlineSize; 39 } isPureFifo()40 bool isPureFifo() { 41 return mPureFifo; 42 } 43 44 // Plays back commands from the client. 45 // Returns true if any commands were processed. 46 bool playCoreCommands(Context *con, int waitFd); 47 48 void setTimeoutCallback(void (*)(void *), void *, uint64_t timeout); 49 50 void * coreHeader(uint32_t, size_t dataLen); 51 void coreCommit(); 52 53 void coreSetReturn(const void *data, size_t dataLen); 54 void coreGetReturn(void *data, size_t dataLen); 55 void coreWrite(const void *data, size_t len); 56 void coreRead(void *data, size_t len); 57 58 void asyncSetReturn(const void *data, size_t dataLen); 59 void asyncGetReturn(void *data, size_t dataLen); 60 void asyncWrite(const void *data, size_t len); 61 void asyncRead(void *data, size_t len); 62 63 64 RsMessageToClientType getClientHeader(size_t *receiveLen, uint32_t *usrID); 65 RsMessageToClientType getClientPayload(void *data, size_t *receiveLen, uint32_t *subID, size_t bufferLen); 66 bool sendToClient(RsMessageToClientType cmdID, uint32_t usrID, const void *data, size_t dataLen, bool waitForSpace); 67 void clientShutdown(); 68 69 70 protected: 71 typedef struct CoreCmdHeaderRec { 72 uint32_t cmdID; 73 uint32_t bytes; 74 } CoreCmdHeader; 75 typedef struct ClientCmdHeaderRec { 76 uint32_t cmdID; 77 uint32_t bytes; 78 uint32_t userID; 79 } ClientCmdHeader; 80 ClientCmdHeader mLastClientHeader; 81 82 bool mRunning; 83 bool mPureFifo; 84 size_t mMaxInlineSize; 85 86 FifoSocket mToClient; 87 FifoSocket mToCore; 88 89 intptr_t mToCoreRet; 90 91 size_t mSendLen; 92 uint8_t mSendBuffer[2 * 1024] __attribute__((aligned(sizeof(double)))); 93 94 }; 95 96 97 } 98 } 99 #endif 100 101