Files
android_development/tools/emulator/opengl/system/OpenglSystemCommon/ThreadInfo.h
Guy Zadickario 75094ee1ac opengles emulator: use bionic tls slot
This make the EGL/GLESv1/GLESv2 libraries on the guest to use
the OPENGL bionic tls slot for faster tls access.
Note that we still setting the slower tls in order to have the
tls destructor which allow us to close the host connection
when the thread exits.

Gives slightly performance improvement, the avg score for the
teapot test in 0xBench goes from 34 to 37 fps. (This test is
near immediate mode since it renders a lot of small primitives
so it is a good candicate to be improved).

Change-Id: I9060c75cc29c2e28721fa11d3f318b438edb5da9
2011-08-16 15:12:03 +03:00

60 lines
1.5 KiB
C

/*
* 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 *)(((unsigned *)__get_tls())[TLS_SLOT_OPENGL]);
if (!tInfo) {
tInfo = slow_getEGLThreadInfo();
((uint32_t *)__get_tls())[TLS_SLOT_OPENGL] = (uint32_t)tInfo;
}
return tInfo;
}
#else
inline EGLThreadInfo* getEGLThreadInfo() {
return slow_getEGLThreadInfo();
}
#endif
#endif // of _THREAD_INFO_H