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 #include "rsContext.h" 18 #include "rsThreadIO.h" 19 #include "rsgApiStructs.h" 20 21 #include <unistd.h> 22 #include <sys/types.h> 23 #include <sys/socket.h> 24 25 #include <fcntl.h> 26 #include <poll.h> 27 28 29 namespace android { 30 namespace renderscript { 31 32 ThreadIO::ThreadIO() { 33 mRunning = true; 34 mMaxInlineSize = 1024; 35 } 36 37 ThreadIO::~ThreadIO() { 38 } 39 40 bool ThreadIO::init() { 41 return mToClient.init() && mToCore.init(); 42 } 43 44 void ThreadIO::shutdown() { 45 mRunning = false; 46 mToCore.shutdown(); 47 } 48 49 void * ThreadIO::coreHeader(uint32_t cmdID, size_t dataLen) { 50 //ALOGE("coreHeader %i %i", cmdID, dataLen); 51 CoreCmdHeader *hdr = (CoreCmdHeader *)&mSendBuffer[0]; 52 hdr->bytes = dataLen; 53 hdr->cmdID = cmdID; 54 mSendLen = dataLen + sizeof(CoreCmdHeader); 55 //mToCoreSocket.writeAsync(&hdr, sizeof(hdr)); 56 //ALOGE("coreHeader ret "); 57 return &mSendBuffer[sizeof(CoreCmdHeader)]; 58 } 59 60 void ThreadIO::coreCommit() { 61 mToCore.writeAsync(&mSendBuffer, mSendLen); 62 } 63 64 void ThreadIO::clientShutdown() { 65 mToClient.shutdown(); 66 } 67 68 void ThreadIO::coreWrite(const void *data, size_t len) { 69 //ALOGV("core write %p %i", data, (int)len); 70 mToCore.writeAsync(data, len, true); 71 } 72 73 void ThreadIO::coreRead(void *data, size_t len) { 74 //ALOGV("core read %p %i", data, (int)len); 75 mToCore.read(data, len); 76 } 77 78 void ThreadIO::coreSetReturn(const void *data, size_t dataLen) { 79 uint32_t buf; 80 if (data == nullptr) { 81 data = &buf; 82 dataLen = sizeof(buf); 83 } 84 85 mToCore.readReturn(data, dataLen); 86 } 87 88 void ThreadIO::coreGetReturn(void *data, size_t dataLen) { 89 uint32_t buf; 90 if (data == nullptr) { 91 data = &buf; 92 dataLen = sizeof(buf); 93 } 94 95 mToCore.writeWaitReturn(data, dataLen); 96 } 97 98 void ThreadIO::setTimeoutCallback(void (*cb)(void *), void *dat, uint64_t timeout) { 99 //mToCore.setTimeoutCallback(cb, dat, timeout); 100 } 101 102 bool ThreadIO::playCoreCommands(Context *con, int waitFd) { 103 bool ret = false; 104 105 uint8_t buf[2 * 1024]; 106 const CoreCmdHeader *cmd = (const CoreCmdHeader *)&buf[0]; 107 const void * data = (const void *)&buf[sizeof(CoreCmdHeader)]; 108 109 struct pollfd p[2]; 110 p[0].fd = mToCore.getReadFd(); 111 p[0].events = POLLIN; 112 p[0].revents = 0; 113 p[1].fd = waitFd; 114 p[1].events = POLLIN; 115 p[1].revents = 0; 116 int pollCount = 1; 117 if (waitFd >= 0) { 118 pollCount = 2; 119 } 120 121 if (con->props.mLogTimes) { 122 con->timerSet(Context::RS_TIMER_IDLE); 123 } 124 125 int waitTime = -1; 126 while (mRunning) { 127 int pr = poll(p, pollCount, waitTime); 128 if (pr <= 0) { 129 break; 130 } 131 132 if (p[0].revents) { 133 size_t r = 0; 134 r = mToCore.read(&buf[0], sizeof(CoreCmdHeader)); 135 mToCore.read(&buf[sizeof(CoreCmdHeader)], cmd->bytes); 136 if (r != sizeof(CoreCmdHeader)) { 137 // exception or timeout occurred. 138 break; 139 } 140 141 ret = true; 142 if (con->props.mLogTimes) { 143 con->timerSet(Context::RS_TIMER_INTERNAL); 144 } 145 //ALOGV("playCoreCommands 3 %i %i", cmd->cmdID, cmd->bytes); 146 147 if (cmd->cmdID >= (sizeof(gPlaybackFuncs) / sizeof(void *))) { 148 rsAssert(cmd->cmdID < (sizeof(gPlaybackFuncs) / sizeof(void *))); 149 ALOGE("playCoreCommands error con %p, cmd %i", con, cmd->cmdID); 150 } 151 152 gPlaybackFuncs[cmd->cmdID](con, data, cmd->bytes); 153 154 if (con->props.mLogTimes) { 155 con->timerSet(Context::RS_TIMER_IDLE); 156 } 157 158 if (waitFd < 0) { 159 // If we don't have a secondary wait object we should stop blocking now 160 // that at least one command has been processed. 161 waitTime = 0; 162 } 163 } 164 165 if (p[1].revents && !p[0].revents) { 166 // We want to finish processing fifo events before processing the vsync. 167 // Otherwise we can end up falling behind and having tremendous lag. 168 break; 169 } 170 } 171 return ret; 172 } 173 174 RsMessageToClientType ThreadIO::getClientHeader(size_t *receiveLen, uint32_t *usrID) { 175 //ALOGE("getClientHeader"); 176 mToClient.read(&mLastClientHeader, sizeof(mLastClientHeader)); 177 178 receiveLen[0] = mLastClientHeader.bytes; 179 usrID[0] = mLastClientHeader.userID; 180 //ALOGE("getClientHeader %i %i %i", mLastClientHeader.cmdID, usrID[0], receiveLen[0]); 181 return (RsMessageToClientType)mLastClientHeader.cmdID; 182 } 183 184 RsMessageToClientType ThreadIO::getClientPayload(void *data, size_t *receiveLen, 185 uint32_t *usrID, size_t bufferLen) { 186 //ALOGE("getClientPayload"); 187 receiveLen[0] = mLastClientHeader.bytes; 188 usrID[0] = mLastClientHeader.userID; 189 if (bufferLen < mLastClientHeader.bytes) { 190 return RS_MESSAGE_TO_CLIENT_RESIZE; 191 } 192 if (receiveLen[0]) { 193 mToClient.read(data, receiveLen[0]); 194 } 195 //ALOGE("getClientPayload x"); 196 return (RsMessageToClientType)mLastClientHeader.cmdID; 197 } 198 199 bool ThreadIO::sendToClient(RsMessageToClientType cmdID, uint32_t usrID, const void *data, 200 size_t dataLen, bool waitForSpace) { 201 202 //ALOGE("sendToClient %i %i %i", cmdID, usrID, (int)dataLen); 203 ClientCmdHeader hdr; 204 hdr.bytes = (uint32_t)dataLen; 205 hdr.cmdID = cmdID; 206 hdr.userID = usrID; 207 208 mToClient.writeAsync(&hdr, sizeof(hdr)); 209 if (dataLen) { 210 mToClient.writeAsync(data, dataLen); 211 } 212 213 //ALOGE("sendToClient x"); 214 return true; 215 } 216 217 } // namespace renderscript 218 } // namespace android 219
