1 files changed, 133 insertions, 0 deletions
diff --git a/opengl/libs/EGL/egl_tls.cpp b/opengl/libs/EGL/egl_tls.cpp
new file mode 100644
index 0000000..961a61e
--- /dev/null
+++ b/opengl/libs/EGL/egl_tls.cpp
@@ -0,0 +1,133 @@
+/*
+ ** 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 <pthread.h>
+
+#include <cutils/log.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), dbg(0) {
+}
+
+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) {
+    validateTLSKey();
+    egl_tls_t* tls = getTLS();
+    if (tls->error != error) {
+        LOGE("%s:%d error %x (%s)", caller, line, error, egl_strerror(error));
+        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