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// ---------------------------------------------------------------------------- 59namespace 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 69struct egl_t { 70 #include "EGL/egl_entries.in" 71}; 72 73struct 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 84EGLAPI void setGlThreadSpecific(gl_hooks_t const *value); 85EGLAPI gl_hooks_t const* getGlThreadSpecific(); 86 87// ---------------------------------------------------------------------------- 88}; // namespace android 89// ---------------------------------------------------------------------------- 90 91#endif /* ANDROID_GLES_CM_HOOKS_H */ 92