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/*
** Copyright 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 <stdlib.h>
#include <pthread.h>
#include <cutils/log.h>
#include <cutils/properties.h>
#include <utils/CallStack.h>
#include <EGL/egl.h>
#include "egl_tls.h"
namespace android {
pthread_key_t egl_tls_t::sKey = -1;
pthread_mutex_t egl_tls_t::sLockKey = PTHREAD_MUTEX_INITIALIZER;
egl_tls_t::egl_tls_t()
: error(EGL_SUCCESS), ctx(0), logCallWithNoContext(EGL_TRUE) {
}
const char *egl_tls_t::egl_strerror(EGLint err) {
switch (err) {
case EGL_SUCCESS: return "EGL_SUCCESS";
case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
default: return "UNKNOWN";
}
}
void egl_tls_t::validateTLSKey()
{
if (sKey == -1) {
pthread_mutex_lock(&sLockKey);
if (sKey == -1)
pthread_key_create(&sKey, NULL);
pthread_mutex_unlock(&sLockKey);
}
}
void egl_tls_t::setErrorEtcImpl(
const char* caller, int line, EGLint error, bool quiet) {
validateTLSKey();
egl_tls_t* tls = getTLS();
if (tls->error != error) {
if (!quiet) {
ALOGE("%s:%d error %x (%s)",
caller, line, error, egl_strerror(error));
char value[PROPERTY_VALUE_MAX];
property_get("debug.egl.callstack", value, "0");
if (atoi(value)) {
CallStack stack(LOG_TAG);
}
}
tls->error = error;
}
}
bool egl_tls_t::logNoContextCall() {
egl_tls_t* tls = getTLS();
if (tls->logCallWithNoContext == true) {
tls->logCallWithNoContext = false;
return true;
}
return false;
}
egl_tls_t* egl_tls_t::getTLS() {
egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
if (tls == 0) {
tls = new egl_tls_t;
pthread_setspecific(sKey, tls);
}
return tls;
}
void egl_tls_t::clearTLS() {
if (sKey != -1) {
egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
if (tls) {
delete tls;
pthread_setspecific(sKey, 0);
}
}
}
void egl_tls_t::clearError() {
// This must clear the error from all the underlying EGL implementations as
// well as the EGL wrapper layer.
eglGetError();
}
EGLint egl_tls_t::getError() {
if (sKey == -1)
return EGL_SUCCESS;
egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
if (!tls) return EGL_SUCCESS;
EGLint error = tls->error;
tls->error = EGL_SUCCESS;
return error;
}
void egl_tls_t::setContext(EGLContext ctx) {
validateTLSKey();
getTLS()->ctx = ctx;
}
EGLContext egl_tls_t::getContext() {
if (sKey == -1)
return EGL_NO_CONTEXT;
egl_tls_t* tls = (egl_tls_t *)pthread_getspecific(sKey);
if (!tls) return EGL_NO_CONTEXT;
return tls->ctx;
}
} // namespace android
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