gl2.cpp revision 46b4253b760916ea8f64c8c32a51ae85ec3b050e
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 4446b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #if defined(__arm__) 4546b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 46288870ebc3da8121b7a237a53280bd8b931b7a2fElliott Hughes #define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n" 47673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 48b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define API_ENTRY(_api) __attribute__((naked)) _api 49b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 50b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 51b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian asm volatile( \ 52673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian GET_TLS(r12) \ 53b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldr r12, [r12, %[tls]] \n" \ 54b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "cmp r12, #0 \n" \ 55b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldrne pc, [r12, %[api]] \n" \ 566f0871222f04dfeb479d37fe9753d491e3150e42Mathias Agopian "mov r0, #0 \n" \ 57b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "bx lr \n" \ 58b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 59b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : [tls] "J"(TLS_SLOT_OPENGL_API*4), \ 60618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian [api] "J"(__builtin_offsetof(gl_hooks_t, gl._api)) \ 61b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 62b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ); 63673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 6446b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #elif defined(__mips__) 6546b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 6646b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #define API_ENTRY(_api) __attribute__((noinline)) _api 6746b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 6846b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #define CALL_GL_API(_api, ...) \ 6946b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand register unsigned int t0 asm("t0"); \ 7046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand register unsigned int fn asm("t1"); \ 7146b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand register unsigned int tls asm("v1"); \ 7246b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand register unsigned int v0 asm("v0"); \ 7346b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand asm volatile( \ 7446b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set push\n\t" \ 7546b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set noreorder\n\t" \ 7646b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set mips32r2\n\t" \ 7746b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "rdhwr %[tls], $29\n\t" \ 7846b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "lw %[t0], %[OPENGL_API](%[tls])\n\t" \ 7946b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "beqz %[t0], 1f\n\t" \ 8046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand " move %[fn],$ra\n\t" \ 8146b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "lw %[fn], %[API](%[t0])\n\t" \ 8246b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "movz %[fn], $ra, %[fn]\n\t" \ 8346b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "1:\n\t" \ 8446b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "j %[fn]\n\t" \ 8546b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand " move %[v0], $0\n\t" \ 8646b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set pop\n\t" \ 8746b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand : [fn] "=c"(fn), \ 8846b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand [tls] "=&r"(tls), \ 8946b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand [t0] "=&r"(t0), \ 9046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand [v0] "=&r"(v0) \ 9146b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \ 9246b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand [API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \ 9346b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand : \ 9446b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ); 9546b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 9646b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #else 9746b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 9846b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #error Unsupported architecture 9946b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 10046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #endif 10146b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 102b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API_RETURN(_api, ...) \ 103b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian CALL_GL_API(_api, __VA_ARGS__) \ 104b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian return 0; // placate gcc's warnings. never reached. 105b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 106b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#else 107b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 108b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define API_ENTRY(_api) _api 109b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 110b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 111618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \ 1127e5099a9ece6a3ed7edb1b5bf60a43422428326cJesse Hall _c->_api(__VA_ARGS__); 1137e5099a9ece6a3ed7edb1b5bf60a43422428326cJesse Hall 114b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API_RETURN(_api, ...) \ 115618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \ 116b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian return _c->_api(__VA_ARGS__) 117b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 118b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#endif 119b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 120b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 121b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopianextern "C" { 122b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "gl2_api.in" 123b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "gl2ext_api.in" 124b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian} 125b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 126b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef API_ENTRY 127b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API 128b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API_RETURN 129b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 13048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian/* 13148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * glGetString() is special because we expose some extensions in the wrapper 13248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian */ 13348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 13448d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianextern "C" const GLubyte * __glGetString(GLenum name); 13548d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 13648d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianconst GLubyte * glGetString(GLenum name) 13748d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian{ 13848d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian const GLubyte * ret = egl_get_string_for_current_context(name); 13948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian if (ret == NULL) { 14048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian ret = __glGetString(name); 14148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } 14248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian return ret; 14348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian} 144