gl2.cpp revision c80aafa61d619087a879dc1095ddf1ca2a5e69fb
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 3039c24a20bbc697630d2b92c251b70c04d6f9d00cMathias Agopian#include "../hooks.h" 3139c24a20bbc697630d2b92c251b70c04d6f9d00cMathias 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 43e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian#if defined(__arm__) && !USE_SLOW_BINDING 4446b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 45288870ebc3da8121b7a237a53280bd8b931b7a2fElliott Hughes #define GET_TLS(reg) "mrc p15, 0, " #reg ", c13, c0, 3 \n" 46673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 47e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian #define API_ENTRY(_api) __attribute__((noinline)) _api 48b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 49b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 50b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian asm volatile( \ 51673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian GET_TLS(r12) \ 52b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldr r12, [r12, %[tls]] \n" \ 53b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "cmp r12, #0 \n" \ 54b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian "ldrne pc, [r12, %[api]] \n" \ 55b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 56b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : [tls] "J"(TLS_SLOT_OPENGL_API*4), \ 57618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian [api] "J"(__builtin_offsetof(gl_hooks_t, gl._api)) \ 58b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian : \ 59b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian ); 60673d2dbaae647abc58b08de873fd364f0b2fa3f5Mathias Agopian 61c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz#elif defined(__i386__) && !USE_SLOW_BINDING 62c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz 63c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz #define API_ENTRY(_api) __attribute__((noinline)) _api 64c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz 65c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz #define CALL_GL_API(_api, ...) \ 66c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz register void** fn; \ 67c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz __asm__ volatile( \ 68c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "mov %%gs:0, %[fn]\n" \ 69c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "mov %P[tls](%[fn]), %[fn]\n" \ 70c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "test %[fn], %[fn]\n" \ 71c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "je 1f\n" \ 72c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "jmp *%P[api](%[fn])\n" \ 73c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "1:\n" \ 74c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz : [fn] "=r" (fn) \ 75c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz : [tls] "i" (TLS_SLOT_OPENGL_API*sizeof(void*)), \ 76c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz [api] "i" (__builtin_offsetof(gl_hooks_t, gl._api)) \ 77c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz : "cc" \ 78c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz ); 79c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz 80c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz#elif defined(__x86_64__) && !USE_SLOW_BINDING 81c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz 82c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz #define API_ENTRY(_api) __attribute__((noinline)) _api 83c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz 84c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz #define CALL_GL_API(_api, ...) \ 85c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz register void** fn; \ 86c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz __asm__ volatile( \ 87c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "mov %%fs:0, %[fn]\n" \ 88c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "mov %P[tls](%[fn]), %[fn]\n" \ 89c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "test %[fn], %[fn]\n" \ 90c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "je 1f\n" \ 91c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "jmp *%P[api](%[fn])\n" \ 92c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz "1:\n" \ 93c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz : [fn] "=r" (fn) \ 94c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz : [tls] "i" (TLS_SLOT_OPENGL_API*sizeof(void*)), \ 95c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz [api] "i" (__builtin_offsetof(gl_hooks_t, gl._api)) \ 96c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz : "cc" \ 97c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz ); 98c80aafa61d619087a879dc1095ddf1ca2a5e69fbmwajdecz 99e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian#elif defined(__mips__) && !USE_SLOW_BINDING 10046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 10146b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #define API_ENTRY(_api) __attribute__((noinline)) _api 10246b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 10346b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand #define CALL_GL_API(_api, ...) \ 104441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall register unsigned int _t0 asm("t0"); \ 105441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall register unsigned int _fn asm("t1"); \ 106441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall register unsigned int _tls asm("v1"); \ 107441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall register unsigned int _v0 asm("v0"); \ 10846b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand asm volatile( \ 10946b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set push\n\t" \ 11046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set noreorder\n\t" \ 11146b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set mips32r2\n\t" \ 11246b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "rdhwr %[tls], $29\n\t" \ 11346b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "lw %[t0], %[OPENGL_API](%[tls])\n\t" \ 11446b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "beqz %[t0], 1f\n\t" \ 11546b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand " move %[fn],$ra\n\t" \ 11646b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "lw %[fn], %[API](%[t0])\n\t" \ 11746b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "movz %[fn], $ra, %[fn]\n\t" \ 11846b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "1:\n\t" \ 11946b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand "j %[fn]\n\t" \ 12046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand " move %[v0], $0\n\t" \ 12146b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ".set pop\n\t" \ 122441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall : [fn] "=c"(_fn), \ 123441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall [tls] "=&r"(_tls), \ 124441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall [t0] "=&r"(_t0), \ 125441f69463ec595ad42fdaad1bbfbb0f7a932437cJesse Hall [v0] "=&r"(_v0) \ 12646b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand : [OPENGL_API] "I"(TLS_SLOT_OPENGL_API*4), \ 12746b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand [API] "I"(__builtin_offsetof(gl_hooks_t, gl._api)) \ 12846b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand : \ 12946b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand ); 13046b4253b760916ea8f64c8c32a51ae85ec3b050eDuane Sand 131b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#else 132b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 133b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define API_ENTRY(_api) _api 134b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 135b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian #define CALL_GL_API(_api, ...) \ 136618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; \ 137e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian if (_c) return _c->_api(__VA_ARGS__); 138b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 139b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#endif 140b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 141e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian#define CALL_GL_API_RETURN(_api, ...) \ 142e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian CALL_GL_API(_api, __VA_ARGS__) \ 143e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian return 0; 144e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian 145e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian 146b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 147b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopianextern "C" { 1484774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall#include "gl3_api.in" 149b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#include "gl2ext_api.in" 1504774338bd0ad1ebe42c311fd0c72f13786b5c800Jesse Hall#include "gl3ext_api.in" 151b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian} 152b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 153b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef API_ENTRY 154b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API 155b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian#undef CALL_GL_API_RETURN 156b1a39d67be99fe6c4545b25e10ac82a5dd1df634Mathias Agopian 15748d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian/* 15848d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * glGetString() is special because we expose some extensions in the wrapper 15948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian */ 16048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 16148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianextern "C" const GLubyte * __glGetString(GLenum name); 16248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 16348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopianconst GLubyte * glGetString(GLenum name) 16448d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian{ 16548d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian const GLubyte * ret = egl_get_string_for_current_context(name); 16648d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian if (ret == NULL) { 167e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian gl_hooks_t::gl_t const * const _c = &getGlThreadSpecific()->gl; 168e0ea89ceef3b0fc5f3efc5d709a8156f0628c6c8Mathias Agopian ret = _c->glGetString(name); 16948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } 17048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian return ret; 17148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian} 172