Loader.cpp revision 776951f9db5744c94167d463584e9ee42c849712
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 311cadb25da1ed875bdd078270e642966724a0c39aMathias Agopian#include "egldefs.h" 32de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include "Loader.h" 33de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 34de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 35de58697644a52a614ad9498aa087e95d4a223673Mathias Agopiannamespace android { 36de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 37de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 38de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 39de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian/* 40993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * EGL userspace drivers must be provided either: 41993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * - as a single library: 42993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libGLES.so 43993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 44993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * - as separate libraries: 45993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libEGL.so 46993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libGLESv1_CM.so 47993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /vendor/lib/egl/libGLESv2.so 48993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 49993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * The software renderer for the emulator must be provided as a single 50993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * library at: 51993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 52993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /system/lib/egl/libGLES_android.so 53993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 54993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * 55993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * For backward compatibility and to facilitate the transition to 56993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * this new naming scheme, the loader will additionally look for: 5794cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall * 58993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian * /{vendor|system}/lib/egl/lib{GLES | [EGL|GLESv1_CM|GLESv2]}_*.so 5994cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall * 60de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian */ 61de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 62de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianANDROID_SINGLETON_STATIC_INSTANCE( Loader ) 63de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 6480b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner/* This function is called to check whether we run inside the emulator, 6580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * and if this is the case whether GLES GPU emulation is supported. 6680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 6780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * Returned values are: 6880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * -1 -> not running inside the emulator 6980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 0 -> running inside the emulator, but GPU emulation not supported 7080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 1 -> running inside the emulator, GPU emulation is supported 71776951f9db5744c94167d463584e9ee42c849712Nicolas Capens * through the "emulation" host-side OpenGL ES implementation. 72776951f9db5744c94167d463584e9ee42c849712Nicolas Capens * 2 -> running inside the emulator, GPU emulation is supported 73776951f9db5744c94167d463584e9ee42c849712Nicolas Capens * through a guest-side vendor driver's OpenGL ES implementation. 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() { 161de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 162de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 163c07b52060acd627c8510c1a9151e0753fce76330Jesse Hallstatic void* load_wrapper(const char* path) { 164c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall void* so = dlopen(path, RTLD_NOW | RTLD_LOCAL); 165c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall ALOGE_IF(!so, "dlopen(\"%s\") failed: %s", path, dlerror()); 166c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall return so; 167c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall} 168c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall 169c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov#ifndef EGL_WRAPPER_DIR 170c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov#if defined(__LP64__) 171c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov#define EGL_WRAPPER_DIR "/system/lib64" 172c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov#else 173c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov#define EGL_WRAPPER_DIR "/system/lib" 174c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov#endif 175c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov#endif 176c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov 177ada798b7ca7cabc255aa159964b64975e7fdb2dfMathias Agopianvoid* Loader::open(egl_connection_t* cnx) 178de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 179de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian void* dso; 180de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian driver_t* hnd = 0; 18194cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall 182993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian dso = load_driver("GLES", cnx, EGL | GLESv1_CM | GLESv2); 183993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (dso) { 184993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian hnd = new driver_t(dso); 185993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } else { 186993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // Always load EGL first 187993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian dso = load_driver("EGL", cnx, EGL); 188de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (dso) { 189de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian hnd = new driver_t(dso); 190993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian hnd->set( load_driver("GLESv1_CM", cnx, GLESv1_CM), GLESv1_CM ); 191993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian hnd->set( load_driver("GLESv2", cnx, GLESv2), GLESv2 ); 192de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 193de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 194de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 195993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian LOG_ALWAYS_FATAL_IF(!hnd, "couldn't find an OpenGL ES implementation"); 196c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall 197c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov cnx->libEgl = load_wrapper(EGL_WRAPPER_DIR "/libEGL.so"); 198c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov cnx->libGles2 = load_wrapper(EGL_WRAPPER_DIR "/libGLESv2.so"); 199c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov cnx->libGles1 = load_wrapper(EGL_WRAPPER_DIR "/libGLESv1_CM.so"); 200c2466e6f005e9cbeea7764e9d8864fa6bca17633Evgenii Stepanov 201c0ec5e2333b6350480851b8b48f000c78ea3f88aMichael Chock LOG_ALWAYS_FATAL_IF(!cnx->libEgl, 202c0ec5e2333b6350480851b8b48f000c78ea3f88aMichael Chock "couldn't load system EGL wrapper libraries"); 203c0ec5e2333b6350480851b8b48f000c78ea3f88aMichael Chock 204c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall LOG_ALWAYS_FATAL_IF(!cnx->libGles2 || !cnx->libGles1, 205c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall "couldn't load system OpenGL ES wrapper libraries"); 206c07b52060acd627c8510c1a9151e0753fce76330Jesse Hall 207de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return (void*)hnd; 208de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 209de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 210de58697644a52a614ad9498aa087e95d4a223673Mathias Agopianstatus_t Loader::close(void* driver) 211de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 212de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian driver_t* hnd = (driver_t*)driver; 213de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian delete hnd; 214de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return NO_ERROR; 215de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 216de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 21794cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hallvoid Loader::init_api(void* dso, 21894cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall char const * const * api, 21994cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall __eglMustCastToProperFunctionPointerType* curr, 22094cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall getProcAddressType getProcAddress) 221de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 2227773c435bc5da8217433e1b242d3a6712a17b5f7Mathias Agopian const ssize_t SIZE = 256; 2230ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian char scrap[SIZE]; 224de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian while (*api) { 225de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * name = *api; 22694cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall __eglMustCastToProperFunctionPointerType f = 227de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType)dlsym(dso, name); 228de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 229de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // couldn't find the entry-point, use eglGetProcAddress() 230de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = getProcAddress(name); 231de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 232de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 233de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // Try without the OES postfix 234de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ssize_t index = ssize_t(strlen(name)) - 3; 2350ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian if ((index>0 && (index<SIZE-1)) && (!strcmp(name+index, "OES"))) { 236de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian strncpy(scrap, name, index); 237de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian scrap[index] = 0; 238de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)dlsym(dso, scrap); 2399d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD_IF(f, "found <%s> instead", scrap); 240de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 241de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 242de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 243de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // Try with the OES postfix 2440ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian ssize_t index = ssize_t(strlen(name)) - 3; 2450ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian if (index>0 && strcmp(name+index, "OES")) { 2460ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian snprintf(scrap, SIZE, "%sOES", name); 247de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)dlsym(dso, scrap); 2489d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD_IF(f, "found <%s> instead", scrap); 249de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 250de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 251de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 2529d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD("%s", name); 253de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_unimplemented; 25448d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian 25548d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian /* 25648d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * GL_EXT_debug_label is special, we always report it as 25748d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * supported, it's handled by GLES_trace. If GLES_trace is not 25848d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian * enabled, then these are no-ops. 25948d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian */ 26048d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian if (!strcmp(name, "glInsertEventMarkerEXT")) { 26148d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_noop; 26248d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } else if (!strcmp(name, "glPushGroupMarkerEXT")) { 26348d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_noop; 26448d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } else if (!strcmp(name, "glPopGroupMarkerEXT")) { 26548d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_noop; 26648d438d05f14c2f4bd83ae89f520368cd49122dfMathias Agopian } 267de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 268de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian *curr++ = f; 269de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian api++; 270de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 271de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 272de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 273993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopianvoid *Loader::load_driver(const char* kind, 274618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian egl_connection_t* cnx, uint32_t mask) 275de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 276993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian class MatchFile { 277993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian public: 278993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian static String8 find(const char* kind) { 279993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 result; 280776951f9db5744c94167d463584e9ee42c849712Nicolas Capens int emulationStatus = checkGlesEmulationStatus(); 281776951f9db5744c94167d463584e9ee42c849712Nicolas Capens switch (emulationStatus) { 282776951f9db5744c94167d463584e9ee42c849712Nicolas Capens case 0: 283776951f9db5744c94167d463584e9ee42c849712Nicolas Capens ALOGD("Emulator without GPU support detected. " 284776951f9db5744c94167d463584e9ee42c849712Nicolas Capens "Fallback to legacy software renderer."); 285776951f9db5744c94167d463584e9ee42c849712Nicolas Capens#if defined(__LP64__) 286776951f9db5744c94167d463584e9ee42c849712Nicolas Capens result.setTo("/system/lib64/egl/libGLES_android.so"); 287776951f9db5744c94167d463584e9ee42c849712Nicolas Capens#else 288776951f9db5744c94167d463584e9ee42c849712Nicolas Capens result.setTo("/system/lib/egl/libGLES_android.so"); 289776951f9db5744c94167d463584e9ee42c849712Nicolas Capens#endif 290776951f9db5744c94167d463584e9ee42c849712Nicolas Capens return result; 291776951f9db5744c94167d463584e9ee42c849712Nicolas Capens case 1: 292776951f9db5744c94167d463584e9ee42c849712Nicolas Capens // Use host-side OpenGL through the "emulation" library 293776951f9db5744c94167d463584e9ee42c849712Nicolas Capens#if defined(__LP64__) 294776951f9db5744c94167d463584e9ee42c849712Nicolas Capens result.appendFormat("/system/lib64/egl/lib%s_emulation.so", kind); 295776951f9db5744c94167d463584e9ee42c849712Nicolas Capens#else 296776951f9db5744c94167d463584e9ee42c849712Nicolas Capens result.appendFormat("/system/lib/egl/lib%s_emulation.so", kind); 297776951f9db5744c94167d463584e9ee42c849712Nicolas Capens#endif 298776951f9db5744c94167d463584e9ee42c849712Nicolas Capens return result; 299776951f9db5744c94167d463584e9ee42c849712Nicolas Capens default: 300776951f9db5744c94167d463584e9ee42c849712Nicolas Capens // Not in emulator, or use other guest-side implementation 301776951f9db5744c94167d463584e9ee42c849712Nicolas Capens break; 302776951f9db5744c94167d463584e9ee42c849712Nicolas Capens } 303776951f9db5744c94167d463584e9ee42c849712Nicolas Capens 304993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 pattern; 305993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian pattern.appendFormat("lib%s", kind); 306993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian const char* const searchPaths[] = { 3078edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#if defined(__LP64__) 3088edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen "/vendor/lib64/egl", 3098edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen "/system/lib64/egl" 3108edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#else 311993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian "/vendor/lib/egl", 312993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian "/system/lib/egl" 3138edb8f5f2d016e4e31530ad7a0c44a4a7a853f64Dan Willemsen#endif 314993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian }; 315993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 316993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // first, we search for the exact name of the GLES userspace 317993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // driver in both locations. 318993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // i.e.: 319993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libGLES.so, or: 320993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libEGL.so, libGLESv1_CM.so, libGLESv2.so 321993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 322993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian for (size_t i=0 ; i<NELEM(searchPaths) ; i++) { 323993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (find(result, pattern, searchPaths[i], true)) { 324993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return result; 325993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 326993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 327993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 328993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // for compatibility with the old "egl.cfg" naming convention 329993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // we look for files that match: 330993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libGLES_*.so, or: 331993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // libEGL_*.so, libGLESv1_CM_*.so, libGLESv2_*.so 332993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 333993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian pattern.append("_"); 334993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian for (size_t i=0 ; i<NELEM(searchPaths) ; i++) { 335993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (find(result, pattern, searchPaths[i], false)) { 336993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return result; 337993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 338993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 339993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 340993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // we didn't find the driver. gah. 341993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result.clear(); 342993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return result; 343993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 344993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 345993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian private: 346993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian static bool find(String8& result, 347993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian const String8& pattern, const char* const search, bool exact) { 348993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (exact) { 349993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 absolutePath; 350993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian absolutePath.appendFormat("%s/%s.so", search, pattern.string()); 351993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (!access(absolutePath.string(), R_OK)) { 352993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result = absolutePath; 353993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return true; 354993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 355993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return false; 356993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 357993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 358993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian DIR* d = opendir(search); 359993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (d != NULL) { 360993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian struct dirent cur; 361993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian struct dirent* e; 362993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian while (readdir_r(d, &cur, &e) == 0 && e) { 363993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (e->d_type == DT_DIR) { 364993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian continue; 365993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 366993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (!strcmp(e->d_name, "libGLES_android.so")) { 367993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // always skip the software renderer 368993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian continue; 369993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 370993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (strstr(e->d_name, pattern.string()) == e->d_name) { 371993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (!strcmp(e->d_name + strlen(e->d_name) - 3, ".so")) { 372993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result.clear(); 373993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian result.appendFormat("%s/%s", search, e->d_name); 374993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian closedir(d); 375993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return true; 376993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 377993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 378993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 379993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian closedir(d); 380993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian } 381993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return false; 3822b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland } 383993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian }; 384993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 385993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian 386993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian String8 absolutePath = MatchFile::find(kind); 387993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian if (absolutePath.isEmpty()) { 388993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian // this happens often, we don't want to log an error 389993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian return 0; 3908c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian } 391993814255fc248454368ed9fe34b4703a05eaf99Mathias Agopian const char* const driver_absolute_path = absolutePath.string(); 3928c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian 3938c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian void* dso = dlopen(driver_absolute_path, RTLD_NOW | RTLD_LOCAL); 3948c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian if (dso == 0) { 3958c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian const char* err = dlerror(); 396e6f43ddce78d6846af12550ff9193c5c6fe5844bSteve Block ALOGE("load_driver(%s): %s", driver_absolute_path, err?err:"unknown"); 3978c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian return 0; 3988c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian } 399de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 4009d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("loaded %s", driver_absolute_path); 401baca89c06a40c6c19ae2294fb4263d893126320cMathias Agopian 402de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & EGL) { 403de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian getProcAddress = (getProcAddressType)dlsym(dso, "eglGetProcAddress"); 404de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 40594cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall ALOGE_IF(!getProcAddress, 4068c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian "can't find eglGetProcAddress() in %s", driver_absolute_path); 407de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 408618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian egl_t* egl = &cnx->egl; 409de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian __eglMustCastToProperFunctionPointerType* curr = 410de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType*)egl; 411de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * const * api = egl_names; 412de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian while (*api) { 413de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * name = *api; 41494cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall __eglMustCastToProperFunctionPointerType f = 415de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType)dlsym(dso, name); 416de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 417de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // couldn't find the entry-point, use eglGetProcAddress() 418de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = getProcAddress(name); 419de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 420de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)0; 421de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 422de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 423de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian *curr++ = f; 424de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian api++; 425de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 426de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 42794cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall 428de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & GLESv1_CM) { 429618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian init_api(dso, gl_names, 430618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian (__eglMustCastToProperFunctionPointerType*) 4317773c435bc5da8217433e1b242d3a6712a17b5f7Mathias Agopian &cnx->hooks[egl_connection_t::GLESv1_INDEX]->gl, 432618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian getProcAddress); 433de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 434de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 435de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & GLESv2) { 436618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian init_api(dso, gl_names, 437618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian (__eglMustCastToProperFunctionPointerType*) 4387773c435bc5da8217433e1b242d3a6712a17b5f7Mathias Agopian &cnx->hooks[egl_connection_t::GLESv2_INDEX]->gl, 439de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian getProcAddress); 440de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 44194cdba97ce1de140623d84c14fb15f12f7da89ddJesse Hall 442de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return dso; 443de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 444de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 445de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 446de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian}; // namespace android 447de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 448