| // This file is part of libigl, a simple c++ geometry processing library. | |
| // | |
| // Copyright (C) 2020 Vladimir Fonov <vladimir.fonov@gmail.com> | |
| // 2013 Alec Jacobson <alecjacobson@gmail.com> | |
| // 2014 Christian Schüller <schuellchr@gmail.com> | |
| // | |
| // This Source Code Form is subject to the terms of the Mozilla Public License | |
| // v. 2.0. If a copy of the MPL was not distributed with this file, You can | |
| // obtain one at http://mozilla.org/MPL/2.0/. | |
| // | |
| namespace igl | |
| { | |
| namespace embree | |
| { | |
| // keep track of embree device | |
| struct EmbreeDevice | |
| { | |
| RTCDevice embree_device; | |
| int embree_device_cntr; | |
| static EmbreeDevice & instance() | |
| { | |
| static EmbreeDevice s; | |
| return s; | |
| } // instance | |
| EmbreeDevice(const EmbreeDevice &) = delete; | |
| EmbreeDevice & operator = (const EmbreeDevice &) = delete; | |
| static RTCDevice get_device(const char *config=nullptr) | |
| { | |
| return instance().get(config); | |
| } | |
| static void release_device(void) | |
| { | |
| instance().release(); | |
| } | |
| private: | |
| EmbreeDevice():embree_device(nullptr),embree_device_cntr(0) {} | |
| ~EmbreeDevice() | |
| { | |
| if(embree_device) | |
| rtcReleaseDevice(embree_device); | |
| } | |
| RTCDevice get(const char *config=nullptr) | |
| { | |
| if(!embree_device) | |
| { | |
| embree_device = rtcNewDevice (config); | |
| if(rtcGetDeviceError (embree_device) != RTC_ERROR_NONE) | |
| std::cerr << "Embree: An error occurred while initializing embree core!" << std::endl; | |
| else | |
| std::cerr << "Embree: core initialized." << std::endl; | |
| } | |
| ++embree_device_cntr; | |
| return embree_device; | |
| } | |
| void release() | |
| { | |
| if(!--embree_device_cntr) { | |
| rtcReleaseDevice (embree_device); | |
| embree_device = nullptr; | |
| std::cerr << "Embree: core released." << std::endl; | |
| } | |
| } | |
| }; | |
| } | |
| } | |