gl2.cpp revision 288870ebc3da8121b7a237a53280bd8b931b7a2f
1b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian/* 2b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** Copyright 2007, The Android Open Source Project 3b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** 4b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** Licensed under the Apache License, Version 2.0 (the "License"); 5b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** you may not use this file except in compliance with the License. 6b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** You may obtain a copy of the License at 7b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** 8b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** http://www.apache.org/licenses/LICENSE-2.0 9b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** 10b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** Unless required by applicable law or agreed to in writing, software 11b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** distributed under the License is distributed on an "AS IS" BASIS, 12b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ** 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 23b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <GLES2/gl2.h> 24b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <GLES2/gl2ext.h> 25b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 26b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <cutils/log.h> 27b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include <cutils/properties.h> 28b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 29b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "hooks.h" 30b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "egl_impl.h" 31b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 32b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopianusing namespace android; 33b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 34b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian// ---------------------------------------------------------------------------- 35b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian// Actual GL entry-points 36b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian// ---------------------------------------------------------------------------- 37b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 38b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef API_ENTRY 39b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API 40b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API_RETURN 41b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 42e8b0fac720b249639fa1cf2f3a06f7d88d207b76Chet Haase#if USE_FAST_TLS_KEY 43b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 44288870ebc3da8121b7a237a53280bd8b931b7a2fElliott Hughes #define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n" 45673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 46b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define API_ENTRY(_api) __attribute__((naked)) _api 47b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 48b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 49b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian asm volatile( \ 50673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian GET_TLS(r12) \ 51b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldr r12, [r12, %[tls]] \n" \ 52b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "cmp r12, #0 \n" \ 53b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldrne pc, [r12, %[api]] \n" \ 546f0871222f04dfeb479d37fe9753d491e3150e42Mathias Agopian "mov r0, #0 \n" \ 55b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "bx lr \n" \ 56b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 57b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : [tls] "J"(TLS_SLOT_OPENGL_API*4), \ 58618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian [api] "J"(__builtin_offsetof(gl_hooks_t, gl._api)) \ 59b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 60b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ); 61673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 62b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API_RETURN(_api, ...) \ 63b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian CALL_GL_API(_api, __VA_ARGS__) \ 64b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian return 0; // placate gcc's warnings. never reached. 65b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 66b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#else 67b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 68b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define API_ENTRY(_api) _api 69b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 70b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 71618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \ 727e5099a9ece6a3ed7edb1b5bf60a43422428326cJesse Hall _c->_api(__VA_ARGS__); 737e5099a9ece6a3ed7edb1b5bf60a43422428326cJesse Hall 74b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API_RETURN(_api, ...) \ 75618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \ 76b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian return _c->_api(__VA_ARGS__) 77b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 78b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#endif 79b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 80b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 81b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopianextern "C" { 82b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "gl2_api.in" 83b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "gl2ext_api.in" 84b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian} 85b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 86b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef API_ENTRY 87b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API 88b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API_RETURN 89b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 9048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian/* 9148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * glGetString() is special because we expose some extensions in the wrapper 9248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian */ 9348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 9448d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianextern "C" const GLubyte * __glGetString(GLenum name); 9548d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 9648d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianconst GLubyte * glGetString(GLenum name) 9748d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian{ 9848d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian const GLubyte * ret = egl_get_string_for_current_context(name); 9948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian if (ret == NULL) { 10048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian ret = __glGetString(name); 10148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } 10248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian return ret; 10348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian} 104