Loader.cpp revision 9d4536835248525f32f1504a3d28d5bbfa0a2910
1de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian/* 2de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** Copyright 2007, The Android Open Source Project 3de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** 4de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** Licensed under the Apache License, Version 2.0 (the "License"); 5de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** you may not use this file except in compliance with the License. 6de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** You may obtain a copy of the License at 7de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** 8de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** http://www.apache.org/licenses/LICENSE-2.0 9de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** 10de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** Unless required by applicable law or agreed to in writing, software 11de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** distributed under the License is distributed on an "AS IS" BASIS, 12de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ** 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> 24de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 25de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <cutils/log.h> 2680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner#include <cutils/properties.h> 27de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 28de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include <EGL/egl.h> 29de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 301cadb25da1ed875bdd078270e642966724a0c39aMathias Agopian#include "egldefs.h" 310469dd6d55fa331bfd7de9431da98b6340d82271Siva Velusamy#include "glestrace.h" 32de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include "hooks.h" 33de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian#include "Loader.h" 34de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 35de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 36de58697644a52a614ad9498aa087e95d4a223673Mathias Agopiannamespace android { 37de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 38de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 39de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 40de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian/* 41de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian * EGL drivers are called 42de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian * 43de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian * /system/lib/egl/lib{[EGL|GLESv1_CM|GLESv2] | GLES}_$TAG.so 44de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian * 45de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian */ 46de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 47de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianANDROID_SINGLETON_STATIC_INSTANCE( Loader ) 48de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 4980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner/* This function is called to check whether we run inside the emulator, 5080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * and if this is the case whether GLES GPU emulation is supported. 5180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 5280b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * Returned values are: 5380b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * -1 -> not running inside the emulator 5480b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 0 -> running inside the emulator, but GPU emulation not supported 5580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 1 -> running inside the emulator, GPU emulation is supported 5680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * through the "emulation" config. 5780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner */ 5880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turnerstatic int 5980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' TurnercheckGlesEmulationStatus(void) 6080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner{ 6180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* We're going to check for the following kernel parameters: 6280b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 6380b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * qemu=1 -> tells us that we run inside the emulator 6480b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * android.qemu.gles=<number> -> tells us the GLES GPU emulation status 6580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * 6680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * Note that we will return <number> if we find it. This let us support 6780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner * more additionnal emulation modes in the future. 6880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner */ 6980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner char prop[PROPERTY_VALUE_MAX]; 7080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner int result = -1; 7180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 7280b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* First, check for qemu=1 */ 7380b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner property_get("ro.kernel.qemu",prop,"0"); 7480b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner if (atoi(prop) != 1) 7580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner return -1; 7680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 7780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* We are in the emulator, get GPU status value */ 7880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner property_get("ro.kernel.qemu.gles",prop,"0"); 7980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner return atoi(prop); 8080b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner} 8180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 82de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 83de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 84de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianLoader::driver_t::driver_t(void* gles) 85de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 86de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[0] = gles; 87de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian for (size_t i=1 ; i<NELEM(dso) ; i++) 88de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[i] = 0; 89de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 90de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 91de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianLoader::driver_t::~driver_t() 92de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 93de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian for (size_t i=0 ; i<NELEM(dso) ; i++) { 94de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (dso[i]) { 95de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dlclose(dso[i]); 96de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[i] = 0; 97de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 98de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 99de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 100de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 101de58697644a52a614ad9498aa087e95d4a223673Mathias Agopianstatus_t Loader::driver_t::set(void* hnd, int32_t api) 102de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 103de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian switch (api) { 104de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian case EGL: 105de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[0] = hnd; 106de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian break; 107de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian case GLESv1_CM: 108de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[1] = hnd; 109de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian break; 110de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian case GLESv2: 111de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian dso[2] = hnd; 112de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian break; 113de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian default: 114de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return BAD_INDEX; 115de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 116de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return NO_ERROR; 117de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 118de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 119de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 120de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 121de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianLoader::entry_t::entry_t(int dpy, int impl, const char* tag) 122de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian : dpy(dpy), impl(impl), tag(tag) { 123de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 124de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 125de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 126de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 127de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianLoader::Loader() 128de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 129de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char line[256]; 130de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char tag[256]; 13180b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 13280b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* Special case for GLES emulation */ 13380b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner if (checkGlesEmulationStatus() == 0) { 1349d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("Emulator without GPU support detected. Fallback to software renderer."); 13580b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner gConfig.add( entry_t(0, 0, "android") ); 13680b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner return; 13780b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner } 13880b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner 13980b30c24ffc0f67b87d7a6b29f616d1c521d40aeDavid 'Digit' Turner /* Otherwise, use egl.cfg */ 140de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian FILE* cfg = fopen("/system/lib/egl/egl.cfg", "r"); 141de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (cfg == NULL) { 142de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // default config 1439d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("egl.cfg not found, using default config"); 144de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian gConfig.add( entry_t(0, 0, "android") ); 145de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } else { 146de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian while (fgets(line, 256, cfg)) { 147de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian int dpy; 148de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian int impl; 149de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (sscanf(line, "%u %u %s", &dpy, &impl, tag) == 3) { 1509d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD(">>> %u %u %s", dpy, impl, tag); 151de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian gConfig.add( entry_t(dpy, impl, tag) ); 152de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 153de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 154de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian fclose(cfg); 155de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 156de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 157de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 158de58697644a52a614ad9498aa087e95d4a223673Mathias AgopianLoader::~Loader() 159de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 1600469dd6d55fa331bfd7de9431da98b6340d82271Siva Velusamy GLTrace_stop(); 161de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 162de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 163de58697644a52a614ad9498aa087e95d4a223673Mathias Agopianconst char* Loader::getTag(int dpy, int impl) 164de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 165de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian const Vector<entry_t>& cfgs(gConfig); 166de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian const size_t c = cfgs.size(); 167de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian for (size_t i=0 ; i<c ; i++) { 168de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (dpy == cfgs[i].dpy) 169de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (impl == cfgs[i].impl) 170de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return cfgs[i].tag.string(); 171de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 172de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return 0; 173de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 174de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 175618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopianvoid* Loader::open(EGLNativeDisplayType display, int impl, egl_connection_t* cnx) 176de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 177de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian /* 178de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian * TODO: if we don't find display/0, then use 0/0 179de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian * (0/0 should always work) 180de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian */ 181de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 182de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian void* dso; 183de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian int index = int(display); 184de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian driver_t* hnd = 0; 185de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 186de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const* tag = getTag(index, impl); 187de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (tag) { 1882b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland dso = load_driver("GLES", tag, cnx, EGL | GLESv1_CM | GLESv2); 189de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (dso) { 190de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian hnd = new driver_t(dso); 191de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } else { 192de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // Always load EGL first 1932b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland dso = load_driver("EGL", tag, cnx, EGL); 194de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (dso) { 195de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian hnd = new driver_t(dso); 196de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 197de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // TODO: make this more automated 1982b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland hnd->set( load_driver("GLESv1_CM", tag, cnx, GLESv1_CM), GLESv1_CM ); 199de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 2002b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland hnd->set( load_driver("GLESv2", tag, cnx, GLESv2), GLESv2 ); 201de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 202de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 203de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 204de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 205de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian LOG_FATAL_IF(!index && !impl && !hnd, 206acdebe352dc7dadc1122a87d45137fd2441b329aMathias Agopian "couldn't find the default OpenGL ES implementation " 207de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian "for default display"); 208de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 209de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return (void*)hnd; 210de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 211de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 212de58697644a52a614ad9498aa087e95d4a223673Mathias Agopianstatus_t Loader::close(void* driver) 213de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 214de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian driver_t* hnd = (driver_t*)driver; 215de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian delete hnd; 216de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return NO_ERROR; 217de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 218de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 219de58697644a52a614ad9498aa087e95d4a223673Mathias Agopianvoid Loader::init_api(void* dso, 220de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * const * api, 221de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian __eglMustCastToProperFunctionPointerType* curr, 222de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian getProcAddressType getProcAddress) 223de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 2240ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian const size_t SIZE = 256; 2250ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian char scrap[SIZE]; 226de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian while (*api) { 227de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * name = *api; 228de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian __eglMustCastToProperFunctionPointerType f = 229de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType)dlsym(dso, name); 230de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 231de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // couldn't find the entry-point, use eglGetProcAddress() 232de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = getProcAddress(name); 233de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 234de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 235de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // Try without the OES postfix 236de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian ssize_t index = ssize_t(strlen(name)) - 3; 2370ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian if ((index>0 && (index<SIZE-1)) && (!strcmp(name+index, "OES"))) { 238de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian strncpy(scrap, name, index); 239de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian scrap[index] = 0; 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) { 245de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // Try with the OES postfix 2460ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian ssize_t index = ssize_t(strlen(name)) - 3; 2470ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian if (index>0 && strcmp(name+index, "OES")) { 2480ad71a97c6061e3b12d2308bd43e02dfeeb63db4Mathias Agopian snprintf(scrap, SIZE, "%sOES", name); 249de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)dlsym(dso, scrap); 2509d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD_IF(f, "found <%s> instead", scrap); 251de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 252de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 253de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 2549d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block //ALOGD("%s", name); 255de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)gl_unimplemented; 256de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 257de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian *curr++ = f; 258de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian api++; 259de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 260de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 261de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 2622b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetlandvoid *Loader::load_driver(const char* kind, const char *tag, 263618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian egl_connection_t* cnx, uint32_t mask) 264de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian{ 2652b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland char driver_absolute_path[PATH_MAX]; 2662b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland const char* const search1 = "/vendor/lib/egl/lib%s_%s.so"; 2672b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland const char* const search2 = "/system/lib/egl/lib%s_%s.so"; 2682b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland 2692b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland snprintf(driver_absolute_path, PATH_MAX, search1, kind, tag); 2708c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian if (access(driver_absolute_path, R_OK)) { 2712b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland snprintf(driver_absolute_path, PATH_MAX, search2, kind, tag); 2722b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland if (access(driver_absolute_path, R_OK)) { 2732b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland // this happens often, we don't want to log an error 2742b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland return 0; 2752b9e4f6a2490864ead44e88a68da78be5cb3da22Brian Swetland } 2768c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian } 2778c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian 2788c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian void* dso = dlopen(driver_absolute_path, RTLD_NOW | RTLD_LOCAL); 2798c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian if (dso == 0) { 2808c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian const char* err = dlerror(); 2818c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian LOGE("load_driver(%s): %s", driver_absolute_path, err?err:"unknown"); 2828c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian return 0; 2838c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian } 284de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 2859d4536835248525f32f1504a3d28d5bbfa0a2910Steve Block ALOGD("loaded %s", driver_absolute_path); 286baca89c06a40c6c19ae2294fb4263d893126320cMathias Agopian 287de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & EGL) { 288de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian getProcAddress = (getProcAddressType)dlsym(dso, "eglGetProcAddress"); 289de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 290de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian LOGE_IF(!getProcAddress, 2918c17384a5edd027376926b857af1fb170dbe9b43Mathias Agopian "can't find eglGetProcAddress() in %s", driver_absolute_path); 292de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 293618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian egl_t* egl = &cnx->egl; 294de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian __eglMustCastToProperFunctionPointerType* curr = 295de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType*)egl; 296de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * const * api = egl_names; 297de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian while (*api) { 298de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian char const * name = *api; 299de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian __eglMustCastToProperFunctionPointerType f = 300de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian (__eglMustCastToProperFunctionPointerType)dlsym(dso, name); 301de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 302de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian // couldn't find the entry-point, use eglGetProcAddress() 303de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = getProcAddress(name); 304de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (f == NULL) { 305de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian f = (__eglMustCastToProperFunctionPointerType)0; 306de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 307de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 308de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian *curr++ = f; 309de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian api++; 310de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 311de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 312de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 313de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & GLESv1_CM) { 314618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian init_api(dso, gl_names, 315618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian (__eglMustCastToProperFunctionPointerType*) 316618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian &cnx->hooks[GLESv1_INDEX]->gl, 317618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian getProcAddress); 318de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 319de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 320de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian if (mask & GLESv2) { 321618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian init_api(dso, gl_names, 322618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian (__eglMustCastToProperFunctionPointerType*) 323618fa10949c42eb83fa5fe105fe542bcff833ddaMathias Agopian &cnx->hooks[GLESv2_INDEX]->gl, 324de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian getProcAddress); 325de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian } 326de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 327de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian return dso; 328de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian} 329de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian 330de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 331de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian}; // namespace android 332de58697644a52a614ad9498aa087e95d4a223673Mathias Agopian// ---------------------------------------------------------------------------- 333