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# OgreHighLevelGpuProgram.cpp

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    00001 /*
    00002 -----------------------------------------------------------------------------
    00003 This source file is part of OGRE
    00004     (Object-oriented Graphics Rendering Engine)
    00005 For the latest info, see http://www.ogre3d.org/
    00006
    00007 Copyright © 2000-2003 The OGRE Team
    00008 Also see acknowledgements in Readme.html
    00009
    00010 This program is free software you can redistribute it and/or modify it under
    00011 the terms of the GNU Lesser General Public License as published by the Free Software
    00012 Foundation either version 2 of the License, or (at your option) any later
    00013 version.
    00014
    00015 This program is distributed in the hope that it will be useful, but WITHOUT
    00016 ANY WARRANTY without even the implied warranty of MERCHANTABILITY or FITNESS
    00017 FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
    00018
    00019 You should have received a copy of the GNU Lesser General Public License along with
    00020 this program if not, write to the Free Software Foundation, Inc., 59 Temple
    00021 Place - Suite 330, Boston, MA 02111-1307, USA, or go to
    00022 http://www.gnu.org/copyleft/lesser.txt.
    00023 -----------------------------------------------------------------------------
    00024 */
    00025 #include "OgreStableHeaders.h"
    00026 #include "OgreHighLevelGpuProgram.h"
    00027 #include "OgreException.h"
    00028 #include "OgreGpuProgramManager.h"
    00029 #include "OgreSDDataChunk.h"
    00030
    00031 namespace Ogre
    00032 {
    00033     //---------------------------------------------------------------------------
    00034     HighLevelGpuProgram::HighLevelGpuProgram(const String& name, GpuProgramType gptype,
    00035         const String& language)
    00036         : GpuProgram(name, gptype, language), mHighLevelLoaded(false), mAssemblerProgram(0)
    00037     {
    00038     }
    00039     //---------------------------------------------------------------------------
    00040     void HighLevelGpuProgram::load()
    00041     {
    00042         if (mIsLoaded)
    00043         {
    00044             unload();
    00045         }
    00046
    00047         // load self
    00048         loadHighLevelImpl();
    00049
    00050         // create low-level implementation
    00051         createLowLevelImpl();
    00052         // load constructed assembler program
    00053         assert(mAssemblerProgram && "Subclass did not initialise mAssemblerProgram!");
    00054         mAssemblerProgram->load();
    00055         mIsLoaded = true;
    00056     }
    00057     //---------------------------------------------------------------------------
    00058     void HighLevelGpuProgram::unload()
    00059     {
    00060         if (mAssemblerProgram)
    00061             mAssemblerProgram->unload();
    00062         unloadImpl();
    00063         mIsLoaded = false;
    00064     }
    00065     //---------------------------------------------------------------------------
    00066     HighLevelGpuProgram::~HighLevelGpuProgram()
    00067     {
    00068         // superclasses will trigger unload
    00069     }
    00070     //---------------------------------------------------------------------------
    00071     GpuProgramParametersSharedPtr HighLevelGpuProgram::createParameters(void)
    00072     {
    00073         // Make sure param defs are loaded
    00074         GpuProgramParametersSharedPtr params = GpuProgramManager::getSingleton().createParameters();
    00075         // Only populate named parameters if we can support this program
    00076         if (this->isSupported())
    00077         {
    00078             loadHighLevelImpl();
    00079             populateParameterNames(params);
    00080         }
    00081         // Copy in default parameters if present
    00082         if (!mDefaultParams.isNull())
    00083             params->copyConstantsFrom(*(mDefaultParams.get()));
    00084         return params;
    00085     }
    00086     //---------------------------------------------------------------------------
    00087     void HighLevelGpuProgram::loadHighLevelImpl(void)
    00088     {
    00089         if (!mHighLevelLoaded)
    00090         {
    00091             if (mLoadFromFile)
    00092             {
    00093                 // find & load source code
    00094                 SDDataChunk chunk;
    00095                 GpuProgramManager::getSingleton()._findResourceData(mFilename, chunk);
    00096                 mSource = chunk.getAsString();
    00097             }
    00098             loadFromSource();
    00099             mHighLevelLoaded = true;
    00100         }
    00101     }
    00102
    00103 }

Copyright © 2002-2003 by The OGRE Team
Last modified Sun Nov 28 19:48:29 2004