Move emugl system code to development.git

Because of the way the SDK and Android system images are branched,
host code that goes into the SDK tools can't live in the same
repository as code that goes into the system image. This change keeps
the emugl host code in sdk.git/emulator/opengl while moving the emugl
system code to development.git/tools/emulator/opengl.

A few changes were made beyond simply cloning the directories:

(a) Makefiles were modified to only build the relevant components. Not
    doing so would break the build due to having multiple rule
    definitions.

(b) Protocol spec files were moved from the guest encoder directories
    to the host decoder directories. The decoder must support older
    versions of the protocol, but not newer versions, so it makes
    sense to keep the latest version of the protocol spec with the
    decoder.

(c) Along with that, the encoder is now built from checked in
    generated encoder source rather than directly from the protocol
    spec.  The generated code must be updated manually. This makes it
    possible to freeze the system encoder version without freezing the
    host decoder version, and also makes it very obvious when a
    protocol changes is happening that will require special
    backwards-compatibility support in the decoder/renderer.

(d) Host-only and system-only code were removed from the repository
    where they aren't used.

(e) README and DESIGN documents were updated to reflect this split.

No actual source code was changed due to the above.

Change-Id: I70b576a70ac3dc94155f931508b152178f1e8cd5

1 files changed, 0 insertions, 153 deletions

diff --git a/emulator/opengl/system/OpenglSystemCommon/HostConnection.cpp b/emulator/opengl/system/OpenglSystemCommon/HostConnection.cpp
deleted file mode 100644
index 940f5ae..0000000
--- a/emulator/opengl/system/OpenglSystemCommon/HostConnection.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
-* 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"
-
-#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)
-{
-}
-
-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);
-        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);
-        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);
-    }
-    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;
-}