1 /* 2 ** Copyright 2007, 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_GLES_CM_HOOKS_H 18 #define ANDROID_GLES_CM_HOOKS_H 19 20 #include <ctype.h> 21 #include <string.h> 22 #include <errno.h> 23 24 #include <pthread.h> 25 26 #include <EGL/egl.h> 27 #include <EGL/eglext.h> 28 #include <GLES/gl.h> 29 #include <GLES/glext.h> 30 #include <GLES2/gl2.h> 31 #include <GLES2/gl2ext.h> 32 33 #if !defined(__arm__) 34 #define USE_SLOW_BINDING 1 35 #else 36 #define USE_SLOW_BINDING 0 37 #endif 38 #undef NELEM 39 #define NELEM(x) (sizeof(x)/sizeof(*(x))) 40 41 // maximum number of GL extensions that can be used simultaneously in 42 // a given process. this limitation exists because we need to have 43 // a static function for each extension and currently these static functions 44 // are generated at compile time. 45 #define MAX_NUMBER_OF_GL_EXTENSIONS 256 46 47 48 #if defined(HAVE_ANDROID_OS) && !USE_SLOW_BINDING && __OPTIMIZE__ 49 #define USE_FAST_TLS_KEY 1 50 #else 51 #define USE_FAST_TLS_KEY 0 52 #endif 53 54 #if USE_FAST_TLS_KEY 55 # include <bionic_tls.h> /* special private C library header */ 56 #endif 57 58 // ---------------------------------------------------------------------------- 59 namespace android { 60 // ---------------------------------------------------------------------------- 61 62 // GL / EGL hooks 63 64 #undef GL_ENTRY 65 #undef EGL_ENTRY 66 #define GL_ENTRY(_r, _api, ...) _r (*_api)(__VA_ARGS__); 67 #define EGL_ENTRY(_r, _api, ...) _r (*_api)(__VA_ARGS__); 68 69 struct egl_t { 70 #include "EGL/egl_entries.in" 71 }; 72 73 struct gl_hooks_t { 74 struct gl_t { 75 #include "entries.in" 76 } gl; 77 struct gl_ext_t { 78 __eglMustCastToProperFunctionPointerType extensions[MAX_NUMBER_OF_GL_EXTENSIONS]; 79 } ext; 80 }; 81 #undef GL_ENTRY 82 #undef EGL_ENTRY 83 84 EGLAPI void setGlThreadSpecific(gl_hooks_t const *value); 85 EGLAPI gl_hooks_t const* getGlThreadSpecific(); 86 87 // ---------------------------------------------------------------------------- 88 }; // namespace android 89 // ---------------------------------------------------------------------------- 90 91 #endif /* ANDROID_GLES_CM_HOOKS_H */ 92
