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) {
LOGE("Failed to create QemuPipeStream for host connection!!!\n");
delete con;
return NULL;
}
if (stream->connect() < 0) {
LOGE("Failed to connect to host (QemuPipeStream)!!!\n");
delete con;
return NULL;
}
con->m_stream = stream;
}
else /* !useQemuPipe */
{
TcpStream *stream = new TcpStream(STREAM_BUFFER_SIZE);
if (!stream) {
LOGE("Failed to create TcpStream for host connection!!!\n");
delete con;
return NULL;
}
if (stream->connect("10.0.2.2", STREAM_PORT_NUM) < 0) {
LOGE("Failed to connect to host (TcpStream)!!!\n");
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));
LOGD("HostConnection::get() New Host Connection established %p, tid %d\n", con, gettid());
tinfo->hostConn = con;
}
return tinfo->hostConn;
}
EGLBoolean eglMakeCurrent(EGLDisplay dpy, EGLSurface draw, EGLSurface read, EGLContext ctx)
{
EGLWrapperContext *wctx = (EGLWrapperContext *)ctx;
EGLContext aglContext = (ctx == EGL_NO_CONTEXT ? EGL_NO_CONTEXT : wctx->aglContext);
EGLThreadInfo *ti = getEGLThreadInfo();
EGLBoolean res = getDispatch()->eglMakeCurrent(dpy, draw, read, aglContext);
if (res ) {
// NOTE - we do get a pointer to the server connection, (rather then using ti->serverConn)
// for cases that this is the first egl call of the current thread.
ServerConnection *server;
if (s_needEncode && (server = ServerConnection::s_getServerConnection())) {
server->utEnc()->makeCurrentContext(server->utEnc(), getpid(),
(uint32_t) (draw == EGL_NO_SURFACE ? 0 : draw),
(uint32_t) (read == EGL_NO_SURFACE ? 0 : read),
(uint32_t) (ctx == EGL_NO_CONTEXT ? 0 : ctx));
server->glEncoder()->setClientState( wctx ? wctx->clientState : NULL );
server->gl2Encoder()->setClientState( wctx ? wctx->clientState : NULL );
}
// set current context in our thread info
ti->currentContext = wctx;
}
return res;
}
gl2_client_context_t *HostConnection::s_getGL2Context()
{
EGLThreadInfo *ti = getEGLThreadInfo();
if (ti->hostConn) {
return ti->hostConn->m_gl2Enc;
}
return NULL;
}
EGLBoolean eglDestroyContext(EGLDisplay dpy, EGLContext ctx)
{
EGLWrapperContext *wctx = (EGLWrapperContext *)ctx;
EGLBoolean res = EGL_FALSE;
if (ctx && ctx != EGL_NO_CONTEXT) {
res = getDispatch()->eglDestroyContext(dpy, wctx->aglContext);
if (res) {
EGLThreadInfo *ti = getEGLThreadInfo();
ServerConnection *server;
if (s_needEncode && (server = ServerConnection::s_getServerConnection())) {
server->utEnc()->destroyContext(ti->serverConn->utEnc(), getpid(), (uint32_t)ctx);
}
if (ti->currentContext == wctx) ti->currentContext = NULL;
delete wctx;
}
}
return res;
}
static const char *getGLString(int glEnum)
{
EGLThreadInfo *tInfo = getEGLThreadInfo();
if (!tInfo || !tInfo->currentContext) {
return NULL;
}
const char** strPtr = NULL;
#define GL_VENDOR 0x1F00
#define GL_RENDERER 0x1F01
#define GL_VERSION 0x1F02
#define GL_EXTENSIONS 0x1F03
switch(glEnum) {
case GL_VERSION:
strPtr = &tInfo->currentContext->versionString;
break;
case GL_VENDOR:
strPtr = &tInfo->currentContext->vendorString;
break;
case GL_RENDERER:
strPtr = &tInfo->currentContext->rendererString;
break;
case GL_EXTENSIONS:
strPtr = &tInfo->currentContext->extensionString;
break;
}
if (!strPtr) {
return NULL;
}
if (*strPtr != NULL) {
//
// string is already cached
//
return *strPtr;
}
//
// first query of that string - need to query host
//
DEFINE_AND_VALIDATE_HOST_CONNECTION(NULL);
char *hostStr = NULL;
int n = rcEnc->rcGetGLString(rcEnc, glEnum, NULL, 0);
if (n < 0) {
hostStr = new char[-n+1];
n = rcEnc->rcGetGLString(rcEnc, glEnum, hostStr, -n);
if (n <= 0) {
delete [] hostStr;
hostStr = NULL;
}
}
//
// keep the string in the context and return its value
//
*strPtr = hostStr;
return hostStr;
}
static T setErrorFunc(GLint error, T returnValue) {
getEGLThreadInfo()->eglError = error;
return returnValue;
}
EGLContext eglGetCurrentContext()
{
EGLThreadInfo *ti = getEGLThreadInfo();
return (ti->currentContext ? ti->currentContext : EGL_NO_CONTEXT);
}
