| /* |
| * 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. |
| */ |
| #include "HostConnection.h" |
| #include "TcpStream.h" |
| #include "QemuPipeStream.h" |
| #include "ThreadInfo.h" |
| #include <cutils/log.h> |
| #include "GLEncoder.h" |
| #include "GL2Encoder.h" |
| #include <memory> |
| |
| #define STREAM_BUFFER_SIZE 4*1024*1024 |
| #define STREAM_PORT_NUM 22468 |
| |
| /* Set to 1 to use a QEMU pipe, or 0 for a TCP connection */ |
| #define USE_QEMU_PIPE 1 |
| |
| HostConnection::HostConnection() : |
| m_stream(NULL), |
| m_glEnc(NULL), |
| m_gl2Enc(NULL), |
| m_rcEnc(NULL), |
| m_checksumHelper() |
| { |
| } |
| |
| HostConnection::~HostConnection() |
| { |
| delete m_stream; |
| delete m_glEnc; |
| delete m_gl2Enc; |
| delete m_rcEnc; |
| } |
| |
| HostConnection *HostConnection::get() |
| { |
| /* TODO: Make this configurable with a system property */ |
| const int useQemuPipe = USE_QEMU_PIPE; |
| |
| // Get thread info |
| EGLThreadInfo *tinfo = getEGLThreadInfo(); |
| if (!tinfo) { |
| return NULL; |
| } |
| |
| if (tinfo->hostConn == NULL) { |
| HostConnection *con = new HostConnection(); |
| if (NULL == con) { |
| return NULL; |
| } |
| |
| if (useQemuPipe) { |
| QemuPipeStream *stream = new QemuPipeStream(STREAM_BUFFER_SIZE); |
| if (!stream) { |
| ALOGE("Failed to create QemuPipeStream for host connection!!!\n"); |
| delete con; |
| return NULL; |
| } |
| if (stream->connect() < 0) { |
| ALOGE("Failed to connect to host (QemuPipeStream)!!!\n"); |
| delete stream; |
| delete con; |
| return NULL; |
| } |
| con->m_stream = stream; |
| } |
| else /* !useQemuPipe */ |
| { |
| TcpStream *stream = new TcpStream(STREAM_BUFFER_SIZE); |
| if (!stream) { |
| ALOGE("Failed to create TcpStream for host connection!!!\n"); |
| delete con; |
| return NULL; |
| } |
| |
| if (stream->connect("10.0.2.2", STREAM_PORT_NUM) < 0) { |
| ALOGE("Failed to connect to host (TcpStream)!!!\n"); |
| delete stream; |
| delete con; |
| return NULL; |
| } |
| con->m_stream = stream; |
| } |
| |
| // send zero 'clientFlags' to the host. |
| unsigned int *pClientFlags = |
| (unsigned int *)con->m_stream->allocBuffer(sizeof(unsigned int)); |
| *pClientFlags = 0; |
| con->m_stream->commitBuffer(sizeof(unsigned int)); |
| |
| ALOGD("HostConnection::get() New Host Connection established %p, tid %d\n", con, gettid()); |
| tinfo->hostConn = con; |
| } |
| |
| return tinfo->hostConn; |
| } |
| |
| GLEncoder *HostConnection::glEncoder() |
| { |
| if (!m_glEnc) { |
| m_glEnc = new GLEncoder(m_stream, checksumHelper()); |
| DBG("HostConnection::glEncoder new encoder %p, tid %d", m_glEnc, gettid()); |
| m_glEnc->setContextAccessor(s_getGLContext); |
| } |
| return m_glEnc; |
| } |
| |
| GL2Encoder *HostConnection::gl2Encoder() |
| { |
| if (!m_gl2Enc) { |
| m_gl2Enc = new GL2Encoder(m_stream, checksumHelper()); |
| DBG("HostConnection::gl2Encoder new encoder %p, tid %d", m_gl2Enc, gettid()); |
| m_gl2Enc->setContextAccessor(s_getGL2Context); |
| } |
| return m_gl2Enc; |
| } |
| |
| renderControl_encoder_context_t *HostConnection::rcEncoder() |
| { |
| if (!m_rcEnc) { |
| m_rcEnc = new renderControl_encoder_context_t(m_stream, checksumHelper()); |
| // TODO: disable checksum as a workaround in a glTexSubImage2D problem |
| // Uncomment the following line when the root cause is solved |
| //setChecksumHelper(m_rcEnc); |
| } |
| return m_rcEnc; |
| } |
| |
| gl_client_context_t *HostConnection::s_getGLContext() |
| { |
| EGLThreadInfo *ti = getEGLThreadInfo(); |
| if (ti->hostConn) { |
| return ti->hostConn->m_glEnc; |
| } |
| return NULL; |
| } |
| |
| gl2_client_context_t *HostConnection::s_getGL2Context() |
| { |
| EGLThreadInfo *ti = getEGLThreadInfo(); |
| if (ti->hostConn) { |
| return ti->hostConn->m_gl2Enc; |
| } |
| return NULL; |
| } |
| |
| void HostConnection::setChecksumHelper(renderControl_encoder_context_t *rcEnc) { |
| std::unique_ptr<char[]> glExtensions; |
| int extensionSize = rcEnc->rcGetGLString(rcEnc, GL_EXTENSIONS, NULL, 0); |
| if (extensionSize < 0) { |
| glExtensions = std::unique_ptr<char[]>(new char[-extensionSize]); |
| extensionSize = rcEnc->rcGetGLString(rcEnc, GL_EXTENSIONS, glExtensions.get(), -extensionSize); |
| if (extensionSize <= 0) { |
| glExtensions.reset(); |
| } |
| } |
| // check the host supported version |
| uint32_t checksumVersion = 0; |
| const char* checksumPrefix = ChecksumCalculator::getMaxVersionStrPrefix(); |
| const char* glProtocolStr = glExtensions.get() ? |
| strstr(glExtensions.get(), checksumPrefix) : NULL; |
| if (glProtocolStr) { |
| uint32_t maxVersion = ChecksumCalculator::getMaxVersion(); |
| sscanf(glProtocolStr+strlen(checksumPrefix), "%d", &checksumVersion); |
| if (maxVersion < checksumVersion) { |
| checksumVersion = maxVersion; |
| } |
| // The ordering of the following two commands matters! |
| // Must tell the host first before setting it in the guest |
| rcEnc->rcSelectChecksumHelper(rcEnc, checksumVersion, 0); |
| m_checksumHelper.setVersion(checksumVersion); |
| } |
| } |