opengl/system/OpenglSystemCommon/ThreadInfo.h

/*
* 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.
*/
#ifndef _THREAD_INFO_H
#define _THREAD_INFO_H

#include "HostConnection.h"
#include <pthread.h>
#ifdef HAVE_ANDROID_OS
#include <bionic_tls.h>
#endif

struct EGLContext_t;

struct EGLThreadInfo
{
    EGLThreadInfo() : currentContext(NULL), hostConn(NULL), eglError(EGL_SUCCESS) {}

    EGLContext_t *currentContext;
    HostConnection *hostConn;
    int           eglError;
};


EGLThreadInfo *slow_getEGLThreadInfo();

#ifdef HAVE_ANDROID_OS
    // We have a dedicated TLS slot in bionic
    inline EGLThreadInfo* getEGLThreadInfo() {
        EGLThreadInfo *tInfo =
             (EGLThreadInfo *)(((uintptr_t *)__get_tls())[TLS_SLOT_OPENGL]);
        if (!tInfo) {
            tInfo = slow_getEGLThreadInfo();
            ((uintptr_t *)__get_tls())[TLS_SLOT_OPENGL] = (uintptr_t)tInfo;
        }
        return tInfo;
    }
#else
    inline EGLThreadInfo* getEGLThreadInfo() {
        return slow_getEGLThreadInfo();
    }
#endif




#endif // of _THREAD_INFO_H