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 <pthread.h>
21
22#include <EGL/egl.h>
23
24#include "egldefs.h"
25
26// ----------------------------------------------------------------------------
27namespace android {
28// ----------------------------------------------------------------------------
29
30class DbgContext;
31
32class egl_tls_t {
33    enum { TLS_KEY_NOT_INITIALIZED = -1 };
34    static pthread_key_t sKey;
35    static pthread_once_t sOnceKey;
36
37    EGLint      error;
38    EGLContext  ctx;
39    EGLBoolean  logCallWithNoContext;
40
41    egl_tls_t();
42    static void validateTLSKey();
43    static void setErrorEtcImpl(
44            const char* caller, int line, EGLint error, bool quiet);
45
46public:
47    static egl_tls_t* getTLS();
48    static void clearTLS();
49    static void clearError();
50    static EGLint getError();
51    static void setContext(EGLContext ctx);
52    static EGLContext getContext();
53    static bool logNoContextCall();
54    static const char *egl_strerror(EGLint err);
55
56    template<typename T>
57    static T setErrorEtc(const char* caller,
58            int line, EGLint error, T returnValue, bool quiet = false) {
59        setErrorEtcImpl(caller, line, error, quiet);
60        return returnValue;
61    }
62};
63
64#define setError(_e, _r)        \
65    egl_tls_t::setErrorEtc(__FUNCTION__, __LINE__, _e, _r)
66
67#define setErrorQuiet(_e, _r)   \
68    egl_tls_t::setErrorEtc(__FUNCTION__, __LINE__, _e, _r, true)
69
70// ----------------------------------------------------------------------------
71
72#if EGL_TRACE
73
74extern gl_hooks_t const* getGLTraceThreadSpecific();
75
76#endif
77
78// ----------------------------------------------------------------------------
79}; // namespace android
80// ----------------------------------------------------------------------------
81
82#endif // ANDROID_EGL_TLS_H
83