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#include <GLES3/gl3.h> 33#include <GLES3/gl3ext.h> 34 35#if !defined(__arm__) && !defined(__mips__) 36#define USE_SLOW_BINDING 1 37#else 38#define USE_SLOW_BINDING 0 39#endif 40#undef NELEM 41#define NELEM(x) (sizeof(x)/sizeof(*(x))) 42 43// maximum number of GL extensions that can be used simultaneously in 44// a given process. this limitation exists because we need to have 45// a static function for each extension and currently these static functions 46// are generated at compile time. 47#define MAX_NUMBER_OF_GL_EXTENSIONS 256 48 49 50#if defined(HAVE_ANDROID_OS) && !USE_SLOW_BINDING && __OPTIMIZE__ 51#define USE_FAST_TLS_KEY 1 52#else 53#define USE_FAST_TLS_KEY 0 54#endif 55 56#if USE_FAST_TLS_KEY 57# include <bionic_tls.h> /* special private C library header */ 58#endif 59 60// ---------------------------------------------------------------------------- 61namespace android { 62// ---------------------------------------------------------------------------- 63 64// GL / EGL hooks 65 66#undef GL_ENTRY 67#undef EGL_ENTRY 68#define GL_ENTRY(_r, _api, ...) _r (*_api)(__VA_ARGS__); 69#define EGL_ENTRY(_r, _api, ...) _r (*_api)(__VA_ARGS__); 70 71struct egl_t { 72 #include "EGL/egl_entries.in" 73}; 74 75struct gl_hooks_t { 76 struct gl_t { 77 #include "entries.in" 78 } gl; 79 struct gl_ext_t { 80 __eglMustCastToProperFunctionPointerType extensions[MAX_NUMBER_OF_GL_EXTENSIONS]; 81 } ext; 82}; 83#undef GL_ENTRY 84#undef EGL_ENTRY 85 86EGLAPI void setGlThreadSpecific(gl_hooks_t const *value); 87EGLAPI gl_hooks_t const* getGlThreadSpecific(); 88 89// ---------------------------------------------------------------------------- 90}; // namespace android 91// ---------------------------------------------------------------------------- 92 93#endif /* ANDROID_GLES_CM_HOOKS_H */ 94