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 #include <stdlib.h>
18 #include <pthread.h>
19
20 #include <cutils/log.h>
21 #include <cutils/properties.h>
22
23 #include <utils/CallStack.h>
24
25 #include <EGL/egl.h>
26
27 #include "egl_tls.h"
28
29
30 namespace android {
31
32 pthread_key_t egl_tls_t::sKey = -1;
33 pthread_mutex_t egl_tls_t::sLockKey = PTHREAD_MUTEX_INITIALIZER;
34
egl_tls_t()35 egl_tls_t::egl_tls_t()
36 : error(EGL_SUCCESS), ctx(0), logCallWithNoContext(EGL_TRUE), dbg(0) {
37 }
38
egl_strerror(EGLint err)39 const char *egl_tls_t::egl_strerror(EGLint err) {
40 switch (err) {
41 case EGL_SUCCESS: return "EGL_SUCCESS";
42 case EGL_NOT_INITIALIZED: return "EGL_NOT_INITIALIZED";
43 case EGL_BAD_ACCESS: return "EGL_BAD_ACCESS";
44 case EGL_BAD_ALLOC: return "EGL_BAD_ALLOC";
45 case EGL_BAD_ATTRIBUTE: return "EGL_BAD_ATTRIBUTE";
46 case EGL_BAD_CONFIG: return "EGL_BAD_CONFIG";
47 case EGL_BAD_CONTEXT: return "EGL_BAD_CONTEXT";
48 case EGL_BAD_CURRENT_SURFACE: return "EGL_BAD_CURRENT_SURFACE";
49 case EGL_BAD_DISPLAY: return "EGL_BAD_DISPLAY";
50 case EGL_BAD_MATCH: return "EGL_BAD_MATCH";
51 case EGL_BAD_NATIVE_PIXMAP: return "EGL_BAD_NATIVE_PIXMAP";
52 case EGL_BAD_NATIVE_WINDOW: return "EGL_BAD_NATIVE_WINDOW";
53 case EGL_BAD_PARAMETER: return "EGL_BAD_PARAMETER";
54 case EGL_BAD_SURFACE: return "EGL_BAD_SURFACE";
55 case EGL_CONTEXT_LOST: return "EGL_CONTEXT_LOST";
56 default: return "UNKNOWN";
57 }
58 }
59
validateTLSKey()60 void egl_tls_t::validateTLSKey()
61 {
62 if (sKey == -1) {
63 pthread_mutex_lock(&sLockKey);
64 if (sKey == -1)
65 pthread_key_create(&sKey, NULL);
66 pthread_mutex_unlock(&sLockKey);
67 }
68 }
69
setErrorEtcImpl(const char * caller,int line,EGLint error,bool quiet)70 void egl_tls_t::setErrorEtcImpl(
71 const char* caller, int line, EGLint error, bool quiet) {
72 validateTLSKey();
73 egl_tls_t* tls = getTLS();
74 if (tls->error != error) {
75 if (!quiet) {
76 LOGE("%s:%d error %x (%s)",
77 caller, line, error, egl_strerror(error));
78 char value[PROPERTY_VALUE_MAX];
79 property_get("debug.egl.callstack", value, "0");
80 if (atoi(value)) {
81 CallStack stack;
82 stack.update();
83 stack.dump();
84 }
85 }
86 tls->error = error;
87 }
88 }
89
logNoContextCall()90 bool egl_tls_t::logNoContextCall() {
91 egl_tls_t* tls = getTLS();
92 if (tls->logCallWithNoContext == true) {
93 tls->logCallWithNoContext = false;
94 return true;
95 }
96 return false;
97 }
98
getTLS()99 egl_tls_t* egl_tls_t::getTLS() {
100 egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
101 if (tls == 0) {
102 tls = new egl_tls_t;
103 pthread_setspecific(sKey, tls);
104 }
105 return tls;
106 }
107
clearTLS()108 void egl_tls_t::clearTLS() {
109 if (sKey != -1) {
110 egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
111 if (tls) {
112 delete tls;
113 pthread_setspecific(sKey, 0);
114 }
115 }
116 }
117
clearError()118 void egl_tls_t::clearError() {
119 // This must clear the error from all the underlying EGL implementations as
120 // well as the EGL wrapper layer.
121 eglGetError();
122 }
123
getError()124 EGLint egl_tls_t::getError() {
125 if (sKey == -1)
126 return EGL_SUCCESS;
127 egl_tls_t* tls = (egl_tls_t*)pthread_getspecific(sKey);
128 if (!tls) return EGL_SUCCESS;
129 EGLint error = tls->error;
130 tls->error = EGL_SUCCESS;
131 return error;
132 }
133
setContext(EGLContext ctx)134 void egl_tls_t::setContext(EGLContext ctx) {
135 validateTLSKey();
136 getTLS()->ctx = ctx;
137 }
138
getContext()139 EGLContext egl_tls_t::getContext() {
140 if (sKey == -1)
141 return EGL_NO_CONTEXT;
142 egl_tls_t* tls = (egl_tls_t *)pthread_getspecific(sKey);
143 if (!tls) return EGL_NO_CONTEXT;
144 return tls->ctx;
145 }
146
147
148 } // namespace android
149