56513f5ff4
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: I2c936101ea0405b372750d36ba0f01e84d719c43
103 lines
2.6 KiB
C++
103 lines
2.6 KiB
C++
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __IO_STREAM_H__
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#define __IO_STREAM_H__
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#include <stdlib.h>
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#include <stdio.h>
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#include "ErrorLog.h"
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class IOStream {
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public:
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IOStream(size_t bufSize) {
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m_buf = NULL;
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m_bufsize = bufSize;
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m_free = 0;
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}
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virtual void *allocBuffer(size_t minSize) = 0;
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virtual int commitBuffer(size_t size) = 0;
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virtual const unsigned char *readFully( void *buf, size_t len) = 0;
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virtual const unsigned char *read( void *buf, size_t *inout_len) = 0;
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virtual int writeFully(const void* buf, size_t len) = 0;
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virtual ~IOStream() {
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// NOTE: m_buf is 'owned' by the child class thus we expect it to be released by it
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}
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unsigned char *alloc(size_t len) {
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if (m_buf && len > m_free) {
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if (flush() < 0) {
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ERR("Failed to flush in alloc\n");
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return NULL; // we failed to flush so something is wrong
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}
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}
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if (!m_buf || len > m_bufsize) {
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int allocLen = m_bufsize < len ? len : m_bufsize;
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m_buf = (unsigned char *)allocBuffer(allocLen);
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if (!m_buf) {
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ERR("Alloc (%u bytes) failed\n", allocLen);
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return NULL;
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}
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m_bufsize = m_free = allocLen;
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}
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unsigned char *ptr;
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ptr = m_buf + (m_bufsize - m_free);
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m_free -= len;
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return ptr;
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}
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int flush() {
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if (!m_buf || m_free == m_bufsize) return 0;
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int stat = commitBuffer(m_bufsize - m_free);
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m_buf = NULL;
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m_free = 0;
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return stat;
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}
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const unsigned char *readback(void *buf, size_t len) {
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flush();
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return readFully(buf, len);
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}
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private:
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unsigned char *m_buf;
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size_t m_bufsize;
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size_t m_free;
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};
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//
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// When a client opens a connection to the renderer, it should
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// send unsigned int value indicating the "clientFlags".
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// The following are the bitmask of the clientFlags.
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// currently only one bit is used which flags the server
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// it should exit.
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//
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#define IOSTREAM_CLIENT_EXIT_SERVER 1
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#endif
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