source: downloads/ogre/OgreMain/src/OgreMaterialManager.cpp @ 44

/*
-----------------------------------------------------------------------------
This source file is part of OGRE
    (Object-oriented Graphics Rendering Engine)
For the latest info, see http://www.ogre3d.org/

Copyright (c) 2000-2006 Torus Knot Software Ltd
Also see acknowledgements in Readme.html

This program is free software; you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License as published by the Free Software
Foundation; either version 2 of the License, or (at your option) any later
version.

This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
Place - Suite 330, Boston, MA 02111-1307, USA, or go to
http://www.gnu.org/copyleft/lesser.txt.

You may alternatively use this source under the terms of a specific version of
the OGRE Unrestricted License provided you have obtained such a license from
Torus Knot Software Ltd.
-----------------------------------------------------------------------------
*/
#include "OgreStableHeaders.h"
#include "OgreMaterialManager.h"

#include "OgreMaterial.h"
#include "OgreStringVector.h"
#include "OgreLogManager.h"
#include "OgreArchive.h"
#include "OgreStringConverter.h"
#include "OgreBlendMode.h"
#include "OgreTechnique.h"
#include "OgrePass.h"
#include "OgreTextureUnitState.h"
#include "OgreException.h"
#include "OgreMaterialScriptCompiler.h"

/** Set this to 0 if having problems with the new Material Script Compiler and want to use the original one.
*/
#ifndef OGRE_MATERIAL_SCRIPT_COMPILER
#define OGRE_MATERIAL_SCRIPT_COMPILER 0
#endif

namespace Ogre {

    //-----------------------------------------------------------------------
    template<> MaterialManager* Singleton<MaterialManager>::ms_Singleton = 0;
    MaterialManager* MaterialManager::getSingletonPtr(void)
    {
        return ms_Singleton;
    }
    MaterialManager& MaterialManager::getSingleton(void)
    {
        assert( ms_Singleton );  return ( *ms_Singleton );
    }
        String MaterialManager::DEFAULT_SCHEME_NAME = "Default";
    //-----------------------------------------------------------------------
    MaterialManager::MaterialManager()
    {
            mDefaultMinFilter = FO_LINEAR;
            mDefaultMagFilter = FO_LINEAR;
            mDefaultMipFilter = FO_POINT;
                mDefaultMaxAniso = 1;

                // Create primary thread copies of script compiler / serializer
                // other copies for other threads may also be instantiated
#if OGRE_MATERIAL_SCRIPT_COMPILER
        OGRE_THREAD_POINTER_SET(mScriptCompiler, new MaterialScriptCompiler());
#endif
                OGRE_THREAD_POINTER_SET(mSerializer, new MaterialSerializer());

        // Loading order
        mLoadOrder = 100.0f;
                // Scripting is supported by this manager
                mScriptPatterns.push_back("*.program");
                mScriptPatterns.push_back("*.material");
                ResourceGroupManager::getSingleton()._registerScriptLoader(this);

                // Resource type
                mResourceType = "Material";

                // Register with resource group manager
                ResourceGroupManager::getSingleton()._registerResourceManager(mResourceType, this);

                // Default scheme
                mActiveSchemeIndex = 0;
                mActiveSchemeName = DEFAULT_SCHEME_NAME;
                mSchemes[mActiveSchemeName] = 0;

    }
    //-----------------------------------------------------------------------
    MaterialManager::~MaterialManager()
    {
        mDefaultSettings.setNull();
            // Resources cleared by superclass
                // Unregister with resource group manager
                ResourceGroupManager::getSingleton()._unregisterResourceManager(mResourceType);
                ResourceGroupManager::getSingleton()._unregisterScriptLoader(this);

                // delete primary thread instances directly, other threads will delete
                // theirs automatically when the threads end (part of boost::thread_specific_ptr)
#if OGRE_MATERIAL_SCRIPT_COMPILER
        OGRE_THREAD_POINTER_DELETE(mScriptCompiler);
#endif
                OGRE_THREAD_POINTER_DELETE(mSerializer);

    }
        //-----------------------------------------------------------------------
        Resource* MaterialManager::createImpl(const String& name, ResourceHandle handle,
                const String& group, bool isManual, ManualResourceLoader* loader,
        const NameValuePairList* params)
        {
                return new Material(this, name, handle, group, isManual, loader);
        }
    //-----------------------------------------------------------------------
        void MaterialManager::initialise(void)
        {
                // Set up default material - don't use name contructor as we want to avoid applying defaults
                mDefaultSettings = create("DefaultSettings", ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME);
        // Add a single technique and pass, non-programmable
        mDefaultSettings->createTechnique()->createPass();

            // Set up a lit base white material
            create("BaseWhite", ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME);
            // Set up an unlit base white material
        MaterialPtr baseWhiteNoLighting = create("BaseWhiteNoLighting",
                        ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME);
        baseWhiteNoLighting->setLightingEnabled(false);

        }
    //-----------------------------------------------------------------------
    void MaterialManager::parseScript(DataStreamPtr& stream, const String& groupName)
    {
        // Delegate to serializer
#if OGRE_MATERIAL_SCRIPT_COMPILER
#if OGRE_THREAD_SUPPORT
                // check we have an instance for this thread (should always have one for main thread)
                if (!mScriptCompiler.get())
                {
                        // create a new instance for this thread - will get deleted when
                        // the thread dies
                        mScriptCompiler.reset(new MaterialScriptCompiler());
                }
#endif
        mScriptCompiler->parseScript(stream, groupName);
#else
#if OGRE_THREAD_SUPPORT
                // check we have an instance for this thread (should always have one for main thread)
                if (!mSerializer.get())
                {
                        // create a new instance for this thread - will get deleted when
                        // the thread dies
                        mSerializer.reset(new MaterialSerializer());
                }
#endif
        mSerializer->parseScript(stream, groupName);
#endif
    }
    //-----------------------------------------------------------------------
        void MaterialManager::setDefaultTextureFiltering(TextureFilterOptions fo)
        {
        switch (fo)
        {
        case TFO_NONE:
            setDefaultTextureFiltering(FO_POINT, FO_POINT, FO_NONE);
            break;
        case TFO_BILINEAR:
            setDefaultTextureFiltering(FO_LINEAR, FO_LINEAR, FO_POINT);
            break;
        case TFO_TRILINEAR:
            setDefaultTextureFiltering(FO_LINEAR, FO_LINEAR, FO_LINEAR);
            break;
        case TFO_ANISOTROPIC:
            setDefaultTextureFiltering(FO_ANISOTROPIC, FO_ANISOTROPIC, FO_LINEAR);
            break;
        }
        }
    //-----------------------------------------------------------------------
        void MaterialManager::setDefaultAnisotropy(unsigned int maxAniso)
        {
                mDefaultMaxAniso = maxAniso;
        }
    //-----------------------------------------------------------------------
        unsigned int MaterialManager::getDefaultAnisotropy() const
        {
                return mDefaultMaxAniso;
        }
    //-----------------------------------------------------------------------
    void MaterialManager::setDefaultTextureFiltering(FilterType ftype, FilterOptions opts)
    {
        switch (ftype)
        {
        case FT_MIN:
            mDefaultMinFilter = opts;
            break;
        case FT_MAG:
            mDefaultMagFilter = opts;
            break;
        case FT_MIP:
            mDefaultMipFilter = opts;
            break;
        }
    }
    //-----------------------------------------------------------------------
    void MaterialManager::setDefaultTextureFiltering(FilterOptions minFilter,
        FilterOptions magFilter, FilterOptions mipFilter)
    {
        mDefaultMinFilter = minFilter;
        mDefaultMagFilter = magFilter;
        mDefaultMipFilter = mipFilter;
    }
    //-----------------------------------------------------------------------
    FilterOptions MaterialManager::getDefaultTextureFiltering(FilterType ftype) const
    {
        switch (ftype)
        {
        case FT_MIN:
            return mDefaultMinFilter;
        case FT_MAG:
            return mDefaultMagFilter;
        case FT_MIP:
            return mDefaultMipFilter;
        }
        // to keep compiler happy
        return mDefaultMinFilter;
    }
    //-----------------------------------------------------------------------
        unsigned short MaterialManager::_getSchemeIndex(const String& schemeName)
        {
                unsigned short ret = 0;
                SchemeMap::iterator i = mSchemes.find(schemeName);
                if (i != mSchemes.end())
                {
                        ret = i->second;
                }
                else
                {
                        // Create new
                        ret = static_cast<unsigned short>(mSchemes.size());
                        mSchemes[schemeName] = ret;
                }
                return ret;

        }
        //-----------------------------------------------------------------------
        const String& MaterialManager::_getSchemeName(unsigned short index)
        {
                for (SchemeMap::iterator i = mSchemes.begin(); i != mSchemes.end(); ++i)
                {
                        if (i->second == index)
                                return i->first;
                }
                return DEFAULT_SCHEME_NAME;
        }
    //-----------------------------------------------------------------------
        unsigned short MaterialManager::_getActiveSchemeIndex(void) const
        {
                return mActiveSchemeIndex;
        }
    //-----------------------------------------------------------------------
        const String& MaterialManager::getActiveScheme(void) const
        {
                return mActiveSchemeName;
        }
    //-----------------------------------------------------------------------
        void MaterialManager::setActiveScheme(const String& schemeName)
        {
                SchemeMap::iterator i = mSchemes.find(schemeName);
                if (i == mSchemes.end())
                {
                        // Invalid scheme, use default
                        mActiveSchemeName = DEFAULT_SCHEME_NAME;
                        mActiveSchemeIndex = 0;
                }
                else
                {
                        mActiveSchemeName = schemeName;
                        mActiveSchemeIndex = i->second;
                }

        }
    //-----------------------------------------------------------------------
}