| /* |
| ** Copyright 2007, The Android Open Source Project |
| ** |
| ** Licensed under the Apache License, Version 2.0 (the "License"); |
| ** you may not use this file except in compliance with the License. |
| ** You may obtain a copy of the License at |
| ** |
| ** http://www.apache.org/licenses/LICENSE-2.0 |
| ** |
| ** Unless required by applicable law or agreed to in writing, software |
| ** distributed under the License is distributed on an "AS IS" BASIS, |
| ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| ** See the License for the specific language governing permissions and |
| ** limitations under the License. |
| */ |
| |
| #ifndef ANDROID_GLES_CM_HOOKS_H |
| #define ANDROID_GLES_CM_HOOKS_H |
| |
| #include <ctype.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include <pthread.h> |
| |
| #include <EGL/egl.h> |
| #include <EGL/eglext.h> |
| #include <GLES/gl.h> |
| #include <GLES/glext.h> |
| #include <GLES2/gl2.h> |
| #include <GLES2/gl2ext.h> |
| #include <GLES3/gl3.h> |
| #include <GLES3/gl31.h> |
| #include <GLES3/gl32.h> |
| |
| // set to 1 for debugging |
| #define USE_SLOW_BINDING 0 |
| |
| #undef NELEM |
| #define NELEM(x) (sizeof(x)/sizeof(*(x))) |
| |
| // maximum number of GL extensions that can be used simultaneously in |
| // a given process. this limitation exists because we need to have |
| // a static function for each extension and currently these static functions |
| // are generated at compile time. |
| #define MAX_NUMBER_OF_GL_EXTENSIONS 256 |
| |
| |
| #include <bionic_tls.h> /* special private C library header */ |
| |
| // ---------------------------------------------------------------------------- |
| namespace android { |
| // ---------------------------------------------------------------------------- |
| |
| // GL / EGL hooks |
| |
| #undef GL_ENTRY |
| #undef EGL_ENTRY |
| #define GL_ENTRY(_r, _api, ...) _r (*(_api))(__VA_ARGS__); |
| #define EGL_ENTRY(_r, _api, ...) _r (*(_api))(__VA_ARGS__); |
| |
| struct platform_impl_t { |
| #include "platform_entries.in" |
| }; |
| |
| struct egl_t { |
| #include "EGL/egl_entries.in" |
| }; |
| |
| struct gl_hooks_t { |
| struct gl_t { |
| #include "entries.in" |
| } gl; |
| struct gl_ext_t { |
| __eglMustCastToProperFunctionPointerType extensions[MAX_NUMBER_OF_GL_EXTENSIONS]; |
| } ext; |
| }; |
| #undef GL_ENTRY |
| #undef EGL_ENTRY |
| |
| EGLAPI void setGlThreadSpecific(gl_hooks_t const *value); |
| |
| // We have a dedicated TLS slot in bionic |
| inline gl_hooks_t const * volatile * get_tls_hooks() { |
| volatile void *tls_base = __get_tls(); |
| gl_hooks_t const * volatile * tls_hooks = |
| reinterpret_cast<gl_hooks_t const * volatile *>(tls_base); |
| return tls_hooks; |
| } |
| |
| inline EGLAPI gl_hooks_t const* getGlThreadSpecific() { |
| gl_hooks_t const * volatile * tls_hooks = get_tls_hooks(); |
| gl_hooks_t const* hooks = tls_hooks[TLS_SLOT_OPENGL_API]; |
| return hooks; |
| } |
| |
| // ---------------------------------------------------------------------------- |
| }; // namespace android |
| // ---------------------------------------------------------------------------- |
| |
| #endif /* ANDROID_GLES_CM_HOOKS_H */ |