Loader.cpp revision 8edb8f5f2d016e4e31530ad7a0c44a4a7a853f64
194cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall/* 2de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** Copyright 2007, The Android Open Source Project 3de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** 494cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** Licensed under the Apache License, Version 2.0 (the "License"); 594cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** you may not use this file except in compliance with the License. 694cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** You may obtain a copy of the License at 7de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** 894cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** http://www.apache.org/licenses/LICENSE-2.0 9de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** 1094cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** Unless required by applicable law or agreed to in writing, software 1194cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** distributed under the License is distributed on an "AS IS" BASIS, 1294cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 1394cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ** See the License for the specific language governing permissions and 14de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** limitations under the License. 15de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian */ 16de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 17de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <ctype.h> 18de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <stdlib.h> 19de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <stdio.h> 20de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <string.h> 21de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <errno.h> 22de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <dlfcn.h> 23de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <limits.h> 24993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian#include <dirent.h> 25de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 26de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <cutils/log.h> 2780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner#include <cutils/properties.h> 28de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 29de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <EGL/egl.h> 30de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 3139c24a20bbc697630d2b92c251b70c04d6f9d00cMathias Agopian#include "../glestrace.h" 3239c24a20bbc697630d2b92c251b70c04d6f9d00cMathias Agopian 331cadb25da1ed875bdd078270e642966724a0c39aMathias Agopian#include "egldefs.h" 34de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include "Loader.h" 35de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 36de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 37de58697644a52a614ad9498aa087e95d4a223673Mathias Agopiannamespace android { 38de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 39de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 40de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 41de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian/* 42993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * EGL userspace drivers must be provided either: 43993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * - as a single library: 44993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libGLES.so 45993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 46993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * - as separate libraries: 47993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libEGL.so 48993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libGLESv1_CM.so 49993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libGLESv2.so 50993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 51993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * The software renderer for the emulator must be provided as a single 52993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * library at: 53993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 54993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /system/lib/egl/libGLES_android.so 55993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 56993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 57993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * For backward compatibility and to facilitate the transition to 58993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * this new naming scheme, the loader will additionally look for: 5994cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall * 60993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /{vendor|system}/lib/egl/lib{GLES | [EGL|GLESv1_CM|GLESv2]}_*.so 6194cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall * 62de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian */ 63de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 64de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianANDROID_SINGLETON_STATIC_INSTANCE( Loader ) 65de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 6680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner/* This function is called to check whether we run inside the emulator, 6780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * and if this is the case whether GLES GPU emulation is supported. 6880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 6980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * Returned values are: 7080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * -1 -> not running inside the emulator 7180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 0 -> running inside the emulator, but GPU emulation not supported 7280b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 1 -> running inside the emulator, GPU emulation is supported 7380b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * through the "emulation" config. 7480b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner */ 7580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turnerstatic int 7680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' TurnercheckGlesEmulationStatus(void) 7780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner{ 7880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* We're going to check for the following kernel parameters: 7980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 8080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * qemu=1 -> tells us that we run inside the emulator 8180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * android.qemu.gles=<number> -> tells us the GLES GPU emulation status 8280b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 8380b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * Note that we will return <number> if we find it. This let us support 8480b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * more additionnal emulation modes in the future. 8580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner */ 8680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner char prop[PROPERTY_VALUE_MAX]; 8780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner int result = -1; 8880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 8980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* First, check for qemu=1 */ 9080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner property_get("ro.kernel.qemu",prop,"0"); 9180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner if (atoi(prop) != 1) 9280b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner return -1; 9380b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 9480b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* We are in the emulator, get GPU status value */ 9580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner property_get("ro.kernel.qemu.gles",prop,"0"); 9680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner return atoi(prop); 9780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner} 9880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 99de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 100de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 101d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopianstatic char const * getProcessCmdline() { 102d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian long pid = getpid(); 103d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian char procPath[128]; 104d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian snprintf(procPath, 128, "/proc/%ld/cmdline", pid); 105d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian FILE * file = fopen(procPath, "r"); 106d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian if (file) { 107d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian static char cmdline[256]; 108d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian char *str = fgets(cmdline, sizeof(cmdline) - 1, file); 109d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian fclose(file); 110d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian if (str) { 111d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian return cmdline; 112d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian } 113d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian } 114d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian return NULL; 115d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian} 116d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian 117d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian// ---------------------------------------------------------------------------- 118d75f84d6410da934d1b1760fdc0d05d4ba1e8f35Mathias Agopian 11994cdba97ce1de140623d84c14fb15f12f7da89ddJesse HallLoader::driver_t::driver_t(void* gles) 120de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 121de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[0] = gles; 122de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian for (size_t i=1 ; i<NELEM(dso) ; i++) 123de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[i] = 0; 124de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 125de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 12694cdba97ce1de140623d84c14fb15f12f7da89ddJesse HallLoader::driver_t::~driver_t() 127de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 128de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian for (size_t i=0 ; i<NELEM(dso) ; i++) { 129de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (dso[i]) { 130de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dlclose(dso[i]); 131de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[i] = 0; 132de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 133de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 134de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 135de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 136de58697644a52a614ad9498aa087e95d4a223673Mathias Agopianstatus_t Loader::driver_t::set(void* hnd, int32_t api) 137de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 138de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian switch (api) { 139de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian case EGL: 140de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[0] = hnd; 141de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian break; 142de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian case GLESv1_CM: 143de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[1] = hnd; 144de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian break; 145de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian case GLESv2: 146de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[2] = hnd; 147de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian break; 148de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian default: 149de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return BAD_INDEX; 150de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 151de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return NO_ERROR; 152de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 153de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 154de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 155de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 156de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianLoader::Loader() 157993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian : getProcAddress(NULL) { 158de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 159de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 160993814255fc248454368ed9fe34b4703a05eaf99Mathias AgopianLoader::~Loader() { 1610469dd6d55fa331bfd7de9431da98b6340d82271Siva Velusamy GLTrace_stop(); 162de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 163de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 164c07b52060acd627c8510c1a9151e0753fce76330Jesse Hallstatic void* load_wrapper(const char* path) { 165c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall void* so = dlopen(path, RTLD_NOW | RTLD_LOCAL); 166c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall ALOGE_IF(!so, "dlopen(\"%s\") failed: %s", path, dlerror()); 167c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall return so; 168c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall} 169c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall 170ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopianvoid* Loader::open(egl_connection_t* cnx) 171de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 172de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian void* dso; 173de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian driver_t* hnd = 0; 17494cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall 175993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian dso = load_driver("GLES", cnx, EGL | GLESv1_CM | GLESv2); 176993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (dso) { 177993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian hnd = new driver_t(dso); 178993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } else { 179993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // Always load EGL first 180993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian dso = load_driver("EGL", cnx, EGL); 181de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (dso) { 182de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian hnd = new driver_t(dso); 183993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian hnd->set( load_driver("GLESv1_CM", cnx, GLESv1_CM), GLESv1_CM ); 184993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian hnd->set( load_driver("GLESv2", cnx, GLESv2), GLESv2 ); 185de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 186de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 187de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 188993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian LOG_ALWAYS_FATAL_IF(!hnd, "couldn't find an OpenGL ES implementation"); 189c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall 1908edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#if defined(__LP64__) 1918edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen cnx->libGles2 = load_wrapper("/system/lib64/libGLESv2.so"); 1928edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen cnx->libGles1 = load_wrapper("/system/lib64/libGLESv1_CM.so"); 1938edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#else 19494cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall cnx->libGles2 = load_wrapper("/system/lib/libGLESv2.so"); 19594cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall cnx->libGles1 = load_wrapper("/system/lib/libGLESv1_CM.so"); 1968edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#endif 197c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall LOG_ALWAYS_FATAL_IF(!cnx->libGles2 || !cnx->libGles1, 198c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall "couldn't load system OpenGL ES wrapper libraries"); 199c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall 200de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return (void*)hnd; 201de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 202de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 203de58697644a52a614ad9498aa087e95d4a223673Mathias Agopianstatus_t Loader::close(void* driver) 204de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 205de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian driver_t* hnd = (driver_t*)driver; 206de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian delete hnd; 207de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return NO_ERROR; 208de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 209de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 21094cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hallvoid Loader::init_api(void* dso, 21194cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall char const * const * api, 21294cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall __eglMustCastToProperFunctionPointerType* curr, 21394cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall getProcAddressType getProcAddress) 214de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 2157773c435bc5da8217433e1b242d3a6712a17b5f7Mathias Agopian const ssize_t SIZE = 256; 2160ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian char scrap[SIZE]; 217de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian while (*api) { 218de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * name = *api; 21994cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall __eglMustCastToProperFunctionPointerType f = 220de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType)dlsym(dso, name); 221de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 222de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // couldn't find the entry-point, use eglGetProcAddress() 223de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = getProcAddress(name); 224de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 225de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 226de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // Try without the OES postfix 227de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ssize_t index = ssize_t(strlen(name)) - 3; 2280ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian if ((index>0 && (index<SIZE-1)) && (!strcmp(name+index, "OES"))) { 229de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian strncpy(scrap, name, index); 230de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian scrap[index] = 0; 231de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)dlsym(dso, scrap); 2329d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD_IF(f, "found <%s> instead", scrap); 233de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 234de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 235de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 236de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // Try with the OES postfix 2370ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian ssize_t index = ssize_t(strlen(name)) - 3; 2380ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian if (index>0 && strcmp(name+index, "OES")) { 2390ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian snprintf(scrap, SIZE, "%sOES", name); 240de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)dlsym(dso, scrap); 2419d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD_IF(f, "found <%s> instead", scrap); 242de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 243de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 244de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 2459d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD("%s", name); 246de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_unimplemented; 24748d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 24848d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian /* 24948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * GL_EXT_debug_label is special, we always report it as 25048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * supported, it's handled by GLES_trace. If GLES_trace is not 25148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * enabled, then these are no-ops. 25248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian */ 25348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian if (!strcmp(name, "glInsertEventMarkerEXT")) { 25448d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_noop; 25548d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } else if (!strcmp(name, "glPushGroupMarkerEXT")) { 25648d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_noop; 25748d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } else if (!strcmp(name, "glPopGroupMarkerEXT")) { 25848d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_noop; 25948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } 260de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 261de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian *curr++ = f; 262de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian api++; 263de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 264de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 265de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 266993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopianvoid *Loader::load_driver(const char* kind, 267618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian egl_connection_t* cnx, uint32_t mask) 268de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 269993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian class MatchFile { 270993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian public: 271993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian static String8 find(const char* kind) { 272993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 result; 273993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 pattern; 274993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian pattern.appendFormat("lib%s", kind); 275993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian const char* const searchPaths[] = { 2768edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#if defined(__LP64__) 2778edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen "/vendor/lib64/egl", 2788edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen "/system/lib64/egl" 2798edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#else 280993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian "/vendor/lib/egl", 281993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian "/system/lib/egl" 2828edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#endif 283993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian }; 284993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 285993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // first, we search for the exact name of the GLES userspace 286993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // driver in both locations. 287993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // i.e.: 288993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libGLES.so, or: 289993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libEGL.so, libGLESv1_CM.so, libGLESv2.so 290993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 291993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian for (size_t i=0 ; i<NELEM(searchPaths) ; i++) { 292993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (find(result, pattern, searchPaths[i], true)) { 293993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return result; 294993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 295993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 296993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 297993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // for compatibility with the old "egl.cfg" naming convention 298993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // we look for files that match: 299993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libGLES_*.so, or: 300993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libEGL_*.so, libGLESv1_CM_*.so, libGLESv2_*.so 301993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 302993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian pattern.append("_"); 303993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian for (size_t i=0 ; i<NELEM(searchPaths) ; i++) { 304993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (find(result, pattern, searchPaths[i], false)) { 305993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return result; 306993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 307993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 308993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 309993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // we didn't find the driver. gah. 310993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result.clear(); 311993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return result; 312993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 313993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 314993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian private: 315993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian static bool find(String8& result, 316993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian const String8& pattern, const char* const search, bool exact) { 317993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 318993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // in the emulator case, we just return the hardcoded name 319993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // of the software renderer. 320993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (checkGlesEmulationStatus() == 0) { 321993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian ALOGD("Emulator without GPU support detected. " 322993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian "Fallback to software renderer."); 3238edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#if defined(__LP64__) 3248edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen result.setTo("/system/lib64/egl/libGLES_android.so"); 3258edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#else 326993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result.setTo("/system/lib/egl/libGLES_android.so"); 3278edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#endif 328993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return true; 329993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 330993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 331993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (exact) { 332993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 absolutePath; 333993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian absolutePath.appendFormat("%s/%s.so", search, pattern.string()); 334993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (!access(absolutePath.string(), R_OK)) { 335993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result = absolutePath; 336993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return true; 337993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 338993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return false; 339993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 340993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 341993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian DIR* d = opendir(search); 342993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (d != NULL) { 343993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian struct dirent cur; 344993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian struct dirent* e; 345993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian while (readdir_r(d, &cur, &e) == 0 && e) { 346993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (e->d_type == DT_DIR) { 347993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian continue; 348993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 349993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (!strcmp(e->d_name, "libGLES_android.so")) { 350993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // always skip the software renderer 351993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian continue; 352993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 353993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (strstr(e->d_name, pattern.string()) == e->d_name) { 354993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (!strcmp(e->d_name + strlen(e->d_name) - 3, ".so")) { 355993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result.clear(); 356993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result.appendFormat("%s/%s", search, e->d_name); 357993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian closedir(d); 358993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return true; 359993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 360993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 361993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 362993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian closedir(d); 363993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 364993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return false; 3652b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland } 366993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian }; 367993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 368993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 369993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 absolutePath = MatchFile::find(kind); 370993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (absolutePath.isEmpty()) { 371993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // this happens often, we don't want to log an error 372993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return 0; 3738c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian } 374993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian const char* const driver_absolute_path = absolutePath.string(); 3758c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian 3768c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian void* dso = dlopen(driver_absolute_path, RTLD_NOW | RTLD_LOCAL); 3778c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian if (dso == 0) { 3788c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian const char* err = dlerror(); 379e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("load_driver(%s): %s", driver_absolute_path, err?err:"unknown"); 3808c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian return 0; 3818c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian } 382de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 3839d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("loaded %s", driver_absolute_path); 384baca89c06a40c6c19ae2294fb4263d893126320cMathias Agopian 385de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & EGL) { 386de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian getProcAddress = (getProcAddressType)dlsym(dso, "eglGetProcAddress"); 387de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 38894cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ALOGE_IF(!getProcAddress, 3898c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian "can't find eglGetProcAddress() in %s", driver_absolute_path); 390de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 391618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian egl_t* egl = &cnx->egl; 392de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian __eglMustCastToProperFunctionPointerType* curr = 393de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType*)egl; 394de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * const * api = egl_names; 395de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian while (*api) { 396de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * name = *api; 39794cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall __eglMustCastToProperFunctionPointerType f = 398de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType)dlsym(dso, name); 399de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 400de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // couldn't find the entry-point, use eglGetProcAddress() 401de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = getProcAddress(name); 402de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 403de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)0; 404de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 405de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 406de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian *curr++ = f; 407de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian api++; 408de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 409de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 41094cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall 411de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & GLESv1_CM) { 412618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian init_api(dso, gl_names, 413618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian (__eglMustCastToProperFunctionPointerType*) 4147773c435bc5da8217433e1b242d3a6712a17b5f7Mathias Agopian &cnx->hooks[egl_connection_t::GLESv1_INDEX]->gl, 415618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian getProcAddress); 416de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 417de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 418de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & GLESv2) { 419618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian init_api(dso, gl_names, 420618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian (__eglMustCastToProperFunctionPointerType*) 4217773c435bc5da8217433e1b242d3a6712a17b5f7Mathias Agopian &cnx->hooks[egl_connection_t::GLESv2_INDEX]->gl, 422de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian getProcAddress); 423de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 42494cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall 425de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return dso; 426de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 427de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 428de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 429de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian}; // namespace android 430de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 431