1 /*
2  ** Copyright 2011, The Android Open Source Project
3  **
4  ** Licensed under the Apache License, Version 2.0 (the "License");
5  ** you may not use this file except in compliance with the License.
6  ** You may obtain a copy of the License at
7  **
8  **     http://www.apache.org/licenses/LICENSE-2.0
9  **
10  ** Unless required by applicable law or agreed to in writing, software
11  ** distributed under the License is distributed on an "AS IS" BASIS,
12  ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  ** See the License for the specific language governing permissions and
14  ** limitations under the License.
15  */
16 
17 #ifndef ANDROID_EGL_TLS_H
18 #define ANDROID_EGL_TLS_H
19 
20 #include <EGL/egl.h>
21 
22 #include <pthread.h>
23 
24 // ----------------------------------------------------------------------------
25 namespace android {
26 // ----------------------------------------------------------------------------
27 
28 class DbgContext;
29 
30 class egl_tls_t {
31     enum { TLS_KEY_NOT_INITIALIZED = -1 };
32     static pthread_key_t sKey;
33     static pthread_once_t sOnceKey;
34 
35     EGLint      error;
36     EGLContext  ctx;
37     bool        logCallWithNoContext;
38 
39     egl_tls_t();
40     static void validateTLSKey();
41     static void destructTLSData(void* data);
42     static void setErrorEtcImpl(
43             const char* caller, int line, EGLint error, bool quiet);
44 
45 public:
46     static egl_tls_t* getTLS();
47     static void clearTLS();
48     static void clearError();
49     static EGLint getError();
50     static void setContext(EGLContext ctx);
51     static EGLContext getContext();
52     static bool logNoContextCall();
53     static const char *egl_strerror(EGLint err);
54 
55     template<typename T>
56     static T setErrorEtc(const char* caller,
57             int line, EGLint error, T returnValue, bool quiet = false) {
58         setErrorEtcImpl(caller, line, error, quiet);
59         return returnValue;
60     }
61 };
62 
63 #define setError(_e, _r)        \
64     egl_tls_t::setErrorEtc(__FUNCTION__, __LINE__, _e, _r)
65 
66 #define setErrorQuiet(_e, _r)   \
67     egl_tls_t::setErrorEtc(__FUNCTION__, __LINE__, _e, _r, true)
68 
69 // ----------------------------------------------------------------------------
70 }; // namespace android
71 // ----------------------------------------------------------------------------
72 
73 #endif // ANDROID_EGL_TLS_H
74