gl2.cpp revision 4774338bd0ad1ebe42c311fd0c72f13786b5c800
14774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall/* 2b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** Copyright 2007, The Android Open Source Project 3b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** 44774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** Licensed under the Apache License, Version 2.0 (the "License"); 54774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** you may not use this file except in compliance with the License. 64774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** You may obtain a copy of the License at 7b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** 84774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** http://www.apache.org/licenses/LICENSE-2.0 9b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** 104774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** Unless required by applicable law or agreed to in writing, software 114774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** distributed under the License is distributed on an "AS IS" BASIS, 124774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 134774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall ** See the License for the specific language governing permissions and 14b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** limitations under the License. 15b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian */ 16b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 17b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <ctype.h> 18b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <string.h> 19b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <errno.h> 20b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 21b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <sys/ioctl.h> 22b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 234774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall#include <GLES3/gl3.h> 244774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall#include <GLES3/gl3ext.h> 25b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <GLES2/gl2ext.h> 26b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 27b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <cutils/log.h> 28b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <cutils/properties.h> 29b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 30b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "hooks.h" 31b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "egl_impl.h" 32b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 33b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopianusing namespace android; 34b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 35b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian// ---------------------------------------------------------------------------- 36b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian// Actual GL entry-points 37b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian// ---------------------------------------------------------------------------- 38b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 39b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef API_ENTRY 40b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API 41b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API_RETURN 42b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 43e8b0fac720b249639fa1cf2f3a06f7d88d207b76Chet Haase#if USE_FAST_TLS_KEY 44b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 45673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian #ifdef HAVE_ARM_TLS_REGISTER 46673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian #define GET_TLS(reg) \ 47673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian "mrc p15, 0, " #reg ", c13, c0, 3 \n" 48673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian #else 49673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian #define GET_TLS(reg) \ 50673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian "mov " #reg ", #0xFFFF0FFF \n" \ 51673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian "ldr " #reg ", [" #reg ", #-15] \n" 52673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian #endif 53673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 54b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define API_ENTRY(_api) __attribute__((naked)) _api 55b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 56b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 57b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian asm volatile( \ 58673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian GET_TLS(r12) \ 59b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldr r12, [r12, %[tls]] \n" \ 60b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "cmp r12, #0 \n" \ 61b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldrne pc, [r12, %[api]] \n" \ 626f0871222f04dfeb479d37fe9753d491e3150e42Mathias Agopian "mov r0, #0 \n" \ 63b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "bx lr \n" \ 64b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 65b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : [tls] "J"(TLS_SLOT_OPENGL_API*4), \ 66618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian [api] "J"(__builtin_offsetof(gl_hooks_t, gl._api)) \ 67b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 68b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ); 69673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 70b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API_RETURN(_api, ...) \ 71b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian CALL_GL_API(_api, __VA_ARGS__) \ 72b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian return 0; // placate gcc's warnings. never reached. 73b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 74b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#else 75b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 76b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define API_ENTRY(_api) _api 77b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 78b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 79618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \ 807e5099a9ece6a3ed7edb1b5bf60a43422428326cJesse Hall _c->_api(__VA_ARGS__); 817e5099a9ece6a3ed7edb1b5bf60a43422428326cJesse Hall 82b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API_RETURN(_api, ...) \ 83618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \ 84b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian return _c->_api(__VA_ARGS__) 85b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 86b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#endif 87b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 88b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 89b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopianextern "C" { 904774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall#include "gl3_api.in" 91b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "gl2ext_api.in" 924774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall#include "gl3ext_api.in" 93b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian} 94b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 95b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef API_ENTRY 96b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API 97b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API_RETURN 98b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 9948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian/* 10048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * glGetString() is special because we expose some extensions in the wrapper 10148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian */ 10248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 10348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianextern "C" const GLubyte * __glGetString(GLenum name); 10448d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 10548d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianconst GLubyte * glGetString(GLenum name) 10648d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian{ 10748d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian const GLubyte * ret = egl_get_string_for_current_context(name); 10848d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian if (ret == NULL) { 10948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian ret = __glGetString(name); 11048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } 11148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian return ret; 11248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian} 113