2010-12-20 21:23:24 +01:00
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/*
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Minetest-c55
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Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef IRRLICHTWRAPPER_HEADER
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#define IRRLICHTWRAPPER_HEADER
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#include "threads.h"
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#include "common_irrlicht.h"
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#include "debug.h"
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#include "utility.h"
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#include <jmutex.h>
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#include <jmutexautolock.h>
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#include <string>
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/*
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A thread-safe texture pointer cache.
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This is used so that irrlicht doesn't get called from many
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threads, because texture pointers have to be handled in
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background threads.
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*/
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class TextureCache
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{
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public:
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TextureCache()
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{
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m_mutex.Init();
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assert(m_mutex.IsInitialized());
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}
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void set(std::string name, video::ITexture *texture)
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{
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2010-12-21 01:25:47 +01:00
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if(texture == NULL)
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return;
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2010-12-20 21:23:24 +01:00
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JMutexAutoLock lock(m_mutex);
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m_textures[name] = texture;
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}
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2011-01-25 23:41:06 +01:00
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video::ITexture* get(const std::string &name)
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2010-12-20 21:23:24 +01:00
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{
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JMutexAutoLock lock(m_mutex);
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core::map<std::string, video::ITexture*>::Node *n;
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n = m_textures.find(name);
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if(n != NULL)
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return n->getValue();
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return NULL;
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}
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private:
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core::map<std::string, video::ITexture*> m_textures;
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JMutex m_mutex;
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};
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/*
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A thread-safe wrapper for irrlicht, to be accessed from
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background worker threads.
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Queues tasks to be done in the main thread.
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*/
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class IrrlichtWrapper
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{
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public:
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/*
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These are called from the main thread
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*/
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IrrlichtWrapper(IrrlichtDevice *device);
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// Run queued tasks
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void Run();
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/*
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These are called from other threads
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*/
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2010-12-21 01:25:47 +01:00
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// Not exactly thread-safe but this needs to be fast.
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// getTimer()->getRealTime() only reads one variable anyway.
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2010-12-20 21:23:24 +01:00
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u32 getTime()
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{
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2010-12-21 01:25:47 +01:00
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return m_device->getTimer()->getRealTime();
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2010-12-20 21:23:24 +01:00
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}
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2011-01-25 23:41:06 +01:00
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/*
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Path can contain stuff like
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"/usr/share/minetest/stone.png[[mod:mineral0[[mod:crack3"
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*/
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video::ITexture* getTexture(const std::string &spec);
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2010-12-20 21:23:24 +01:00
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private:
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/*
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Non-thread-safe variants of stuff, for internal use
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*/
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2011-01-25 23:41:06 +01:00
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video::ITexture* getTextureDirect(const std::string &spec);
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2010-12-20 21:23:24 +01:00
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/*
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Members
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*/
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threadid_t m_main_thread;
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JMutex m_device_mutex;
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IrrlichtDevice *m_device;
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TextureCache m_texturecache;
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2011-01-25 23:41:06 +01:00
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RequestQueue<std::string, video::ITexture*, u8, u8> m_get_texture_queue;
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2010-12-20 21:23:24 +01:00
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};
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#endif
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