[5] | 1 | /* |
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| 2 | ----------------------------------------------------------------------------- |
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| 3 | This source file is part of OGRE |
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| 4 | (Object-oriented Graphics Rendering Engine) |
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| 5 | For the latest info, see http://www.ogre3d.org/ |
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| 6 | |
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| 7 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
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| 8 | Also see acknowledgements in Readme.html |
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| 9 | |
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| 10 | This program is free software; you can redistribute it and/or modify it under |
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software |
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| 12 | Foundation; either version 2 of the License, or (at your option) any later |
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| 13 | version. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT |
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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| 18 | |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with |
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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| 22 | http://www.gnu.org/copyleft/lesser.txt. |
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| 23 | |
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| 24 | You may alternatively use this source under the terms of a specific version of |
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| 25 | the OGRE Unrestricted License provided you have obtained such a license from |
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| 26 | Torus Knot Software Ltd. |
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| 27 | ----------------------------------------------------------------------------- |
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| 28 | */ |
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| 29 | #include "OgreStableHeaders.h" |
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| 30 | #include "OgreCompositor.h" |
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| 31 | #include "OgreCompositionTechnique.h" |
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| 32 | |
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| 33 | namespace Ogre { |
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| 34 | |
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| 35 | //----------------------------------------------------------------------- |
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| 36 | Compositor::Compositor(ResourceManager* creator, const String& name, ResourceHandle handle, |
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| 37 | const String& group, bool isManual, ManualResourceLoader* loader): |
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| 38 | Resource(creator, name, handle, group, isManual, loader), |
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| 39 | mCompilationRequired(true) |
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| 40 | { |
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| 41 | } |
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| 42 | //----------------------------------------------------------------------- |
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| 43 | |
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| 44 | Compositor::~Compositor() |
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| 45 | { |
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| 46 | removeAllTechniques(); |
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| 47 | // have to call this here reather than in Resource destructor |
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| 48 | // since calling virtual methods in base destructors causes crash |
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| 49 | unload(); |
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| 50 | } |
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| 51 | //----------------------------------------------------------------------- |
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| 52 | CompositionTechnique *Compositor::createTechnique() |
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| 53 | { |
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| 54 | CompositionTechnique *t = new CompositionTechnique(this); |
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| 55 | mTechniques.push_back(t); |
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| 56 | mCompilationRequired = true; |
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| 57 | return t; |
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| 58 | } |
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| 59 | //----------------------------------------------------------------------- |
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| 60 | |
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| 61 | void Compositor::removeTechnique(size_t index) |
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| 62 | { |
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| 63 | assert (index < mTechniques.size() && "Index out of bounds."); |
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| 64 | Techniques::iterator i = mTechniques.begin() + index; |
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| 65 | delete(*i); |
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| 66 | mTechniques.erase(i); |
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| 67 | mSupportedTechniques.clear(); |
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| 68 | mCompilationRequired = true; |
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| 69 | } |
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| 70 | //----------------------------------------------------------------------- |
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| 71 | |
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| 72 | CompositionTechnique *Compositor::getTechnique(size_t index) |
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| 73 | { |
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| 74 | assert (index < mTechniques.size() && "Index out of bounds."); |
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| 75 | return mTechniques[index]; |
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| 76 | } |
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| 77 | //----------------------------------------------------------------------- |
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| 78 | |
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| 79 | size_t Compositor::getNumTechniques() |
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| 80 | { |
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| 81 | return mTechniques.size(); |
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| 82 | } |
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| 83 | //----------------------------------------------------------------------- |
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| 84 | void Compositor::removeAllTechniques() |
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| 85 | { |
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| 86 | Techniques::iterator i, iend; |
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| 87 | iend = mTechniques.end(); |
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| 88 | for (i = mTechniques.begin(); i != iend; ++i) |
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| 89 | { |
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| 90 | delete(*i); |
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| 91 | } |
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| 92 | mTechniques.clear(); |
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| 93 | mSupportedTechniques.clear(); |
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| 94 | mCompilationRequired = true; |
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| 95 | } |
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| 96 | //----------------------------------------------------------------------- |
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| 97 | Compositor::TechniqueIterator Compositor::getTechniqueIterator(void) |
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| 98 | { |
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| 99 | return TechniqueIterator(mTechniques.begin(), mTechniques.end()); |
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| 100 | } |
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| 101 | //----------------------------------------------------------------------- |
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| 102 | |
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| 103 | CompositionTechnique *Compositor::getSupportedTechnique(size_t index) |
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| 104 | { |
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| 105 | assert (index < mSupportedTechniques.size() && "Index out of bounds."); |
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| 106 | return mSupportedTechniques[index]; |
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| 107 | } |
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| 108 | //----------------------------------------------------------------------- |
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| 109 | |
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| 110 | size_t Compositor::getNumSupportedTechniques() |
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| 111 | { |
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| 112 | return mSupportedTechniques.size(); |
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| 113 | } |
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| 114 | //----------------------------------------------------------------------- |
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| 115 | |
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| 116 | Compositor::TechniqueIterator Compositor::getSupportedTechniqueIterator(void) |
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| 117 | { |
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| 118 | return TechniqueIterator(mSupportedTechniques.begin(), mSupportedTechniques.end()); |
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| 119 | } |
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| 120 | //----------------------------------------------------------------------- |
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| 121 | void Compositor::loadImpl(void) |
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| 122 | { |
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| 123 | // compile if required |
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| 124 | if (mCompilationRequired) |
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| 125 | compile(); |
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| 126 | } |
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| 127 | //----------------------------------------------------------------------- |
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| 128 | void Compositor::unloadImpl(void) |
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| 129 | { |
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| 130 | } |
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| 131 | //----------------------------------------------------------------------- |
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| 132 | size_t Compositor::calculateSize(void) const |
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| 133 | { |
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| 134 | return 0; |
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| 135 | } |
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| 136 | |
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| 137 | //----------------------------------------------------------------------- |
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| 138 | void Compositor::compile() |
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| 139 | { |
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| 140 | /// Sift out supported techniques |
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| 141 | mSupportedTechniques.clear(); |
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| 142 | Techniques::iterator i, iend; |
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| 143 | iend = mTechniques.end(); |
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| 144 | |
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| 145 | // Try looking for exact technique support with no texture fallback |
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| 146 | for (i = mTechniques.begin(); i != iend; ++i) |
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| 147 | { |
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| 148 | // Look for exact texture support first |
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| 149 | if((*i)->isSupported(false)) |
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| 150 | { |
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| 151 | mSupportedTechniques.push_back(*i); |
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| 152 | } |
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| 153 | } |
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| 154 | |
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| 155 | if (mSupportedTechniques.empty()) |
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| 156 | { |
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| 157 | // Check again, being more lenient with textures |
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| 158 | for (i = mTechniques.begin(); i != iend; ++i) |
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| 159 | { |
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| 160 | // Allow texture support with degraded pixel format |
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| 161 | if((*i)->isSupported(true)) |
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| 162 | { |
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| 163 | mSupportedTechniques.push_back(*i); |
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| 164 | } |
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| 165 | } |
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| 166 | } |
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| 167 | mCompilationRequired = false; |
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| 168 | } |
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| 169 | |
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| 170 | } |
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