[1] | 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 "OgreCompositorInstance.h" |
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| 31 | #include "OgreCompositorChain.h" |
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| 32 | #include "OgreCompositorManager.h" |
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| 33 | #include "OgreCompositionTargetPass.h" |
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| 34 | #include "OgreCompositionPass.h" |
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| 35 | #include "OgreCompositionTechnique.h" |
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| 36 | #include "OgreTechnique.h" |
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| 37 | #include "OgrePass.h" |
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| 38 | #include "OgreTexture.h" |
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| 39 | #include "OgreLogManager.h" |
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| 40 | #include "OgreMaterialManager.h" |
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| 41 | #include "OgreTextureManager.h" |
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| 42 | #include "OgreSceneManager.h" |
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| 43 | #include "OgreStringConverter.h" |
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| 44 | #include "OgreException.h" |
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| 45 | #include "OgreHardwarePixelBuffer.h" |
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| 46 | #include "OgreCamera.h" |
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| 47 | |
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| 48 | namespace Ogre { |
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| 49 | CompositorInstance::CompositorInstance(Compositor *filter, CompositionTechnique *technique, |
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| 50 | CompositorChain *chain): |
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| 51 | mCompositor(filter), mTechnique(technique), mChain(chain), |
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| 52 | mEnabled(false) |
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| 53 | { |
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| 54 | } |
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| 55 | //----------------------------------------------------------------------- |
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| 56 | CompositorInstance::~CompositorInstance() |
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| 57 | { |
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| 58 | freeResources(); |
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| 59 | } |
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| 60 | //----------------------------------------------------------------------- |
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| 61 | void CompositorInstance::setEnabled(bool value) |
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| 62 | { |
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| 63 | if (mEnabled != value) |
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| 64 | { |
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| 65 | mEnabled = value; |
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| 66 | |
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| 67 | // Create of free resource. |
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| 68 | if (value) |
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| 69 | { |
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| 70 | createResources(); |
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| 71 | } |
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| 72 | else |
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| 73 | { |
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| 74 | freeResources(); |
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| 75 | } |
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| 76 | |
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| 77 | /// Notify chain state needs recompile. |
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| 78 | mChain->_markDirty(); |
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| 79 | } |
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| 80 | } |
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| 81 | //----------------------------------------------------------------------- |
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| 82 | bool CompositorInstance::getEnabled() |
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| 83 | { |
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| 84 | return mEnabled; |
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| 85 | } |
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| 86 | //----------------------------------------------------------------------- |
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| 87 | |
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| 88 | /** Clear framebuffer RenderSystem operation |
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| 89 | */ |
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| 90 | class RSClearOperation: public CompositorInstance::RenderSystemOperation |
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| 91 | { |
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| 92 | public: |
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| 93 | RSClearOperation(uint32 buffers, ColourValue colour, Real depth, unsigned short stencil): |
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| 94 | buffers(buffers), colour(colour), depth(depth), stencil(stencil) |
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| 95 | {} |
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| 96 | /// Which buffers to clear (FrameBufferType) |
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| 97 | uint32 buffers; |
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| 98 | /// Colour to clear in case FBT_COLOUR is set |
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| 99 | ColourValue colour; |
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| 100 | /// Depth to set in case FBT_DEPTH is set |
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| 101 | Real depth; |
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| 102 | /// Stencil value to set in case FBT_STENCIL is set |
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| 103 | unsigned short stencil; |
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| 104 | |
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| 105 | virtual void execute(SceneManager *sm, RenderSystem *rs) |
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| 106 | { |
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| 107 | rs->clearFrameBuffer(buffers, colour, depth, stencil); |
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| 108 | } |
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| 109 | }; |
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| 110 | |
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| 111 | /** "Set stencil state" RenderSystem operation |
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| 112 | */ |
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| 113 | class RSStencilOperation: public CompositorInstance::RenderSystemOperation |
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| 114 | { |
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| 115 | public: |
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| 116 | RSStencilOperation(bool stencilCheck,CompareFunction func,uint32 refValue,uint32 mask, |
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| 117 | StencilOperation stencilFailOp,StencilOperation depthFailOp,StencilOperation passOp, |
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| 118 | bool twoSidedOperation): |
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| 119 | stencilCheck(stencilCheck),func(func),refValue(refValue),mask(mask), |
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| 120 | stencilFailOp(stencilFailOp),depthFailOp(depthFailOp),passOp(passOp), |
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| 121 | twoSidedOperation(twoSidedOperation) |
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| 122 | {} |
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| 123 | bool stencilCheck; |
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| 124 | CompareFunction func; |
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| 125 | uint32 refValue; |
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| 126 | uint32 mask; |
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| 127 | StencilOperation stencilFailOp; |
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| 128 | StencilOperation depthFailOp; |
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| 129 | StencilOperation passOp; |
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| 130 | bool twoSidedOperation; |
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| 131 | |
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| 132 | virtual void execute(SceneManager *sm, RenderSystem *rs) |
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| 133 | { |
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| 134 | rs->setStencilCheckEnabled(stencilCheck); |
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| 135 | rs->setStencilBufferParams(func, refValue, mask, stencilFailOp, depthFailOp, passOp, twoSidedOperation); |
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| 136 | } |
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| 137 | }; |
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| 138 | |
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| 139 | /** "Render quad" RenderSystem operation |
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| 140 | */ |
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| 141 | class RSQuadOperation: public CompositorInstance::RenderSystemOperation |
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| 142 | { |
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| 143 | public: |
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| 144 | RSQuadOperation(CompositorInstance *instance, uint32 pass_id, MaterialPtr mat): |
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| 145 | mat(mat),instance(instance), pass_id(pass_id) |
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| 146 | { |
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| 147 | mat->load(); |
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| 148 | instance->_fireNotifyMaterialSetup(pass_id, mat); |
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| 149 | technique = mat->getTechnique(0); |
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| 150 | assert(technique); |
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| 151 | } |
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| 152 | MaterialPtr mat; |
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| 153 | Technique *technique; |
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| 154 | CompositorInstance *instance; |
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| 155 | uint32 pass_id; |
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| 156 | |
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| 157 | virtual void execute(SceneManager *sm, RenderSystem *rs) |
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| 158 | { |
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| 159 | // Fire listener |
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| 160 | instance->_fireNotifyMaterialRender(pass_id, mat); |
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| 161 | // Queue passes from mat |
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| 162 | Technique::PassIterator i = technique->getPassIterator(); |
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| 163 | while(i.hasMoreElements()) |
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| 164 | { |
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| 165 | sm->_injectRenderWithPass( |
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| 166 | i.getNext(), |
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| 167 | CompositorManager::getSingleton()._getTexturedRectangle2D(), |
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| 168 | false // don't allow replacement of shadow passes |
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| 169 | ); |
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| 170 | } |
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| 171 | } |
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| 172 | }; |
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| 173 | |
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| 174 | void CompositorInstance::collectPasses(TargetOperation &finalState, CompositionTargetPass *target) |
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| 175 | { |
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| 176 | /// Here, passes are converted into render target operations |
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| 177 | Pass *targetpass; |
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| 178 | Technique *srctech; |
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| 179 | MaterialPtr mat, srcmat; |
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| 180 | |
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| 181 | CompositionTargetPass::PassIterator it = target->getPassIterator(); |
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| 182 | while(it.hasMoreElements()) |
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| 183 | { |
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| 184 | CompositionPass *pass = it.getNext(); |
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| 185 | switch(pass->getType()) |
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| 186 | { |
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| 187 | case CompositionPass::PT_CLEAR: |
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| 188 | queueRenderSystemOp(finalState, new RSClearOperation( |
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| 189 | pass->getClearBuffers(), |
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| 190 | pass->getClearColour(), |
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| 191 | pass->getClearDepth(), |
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| 192 | pass->getClearStencil() |
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| 193 | )); |
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| 194 | break; |
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| 195 | case CompositionPass::PT_STENCIL: |
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| 196 | queueRenderSystemOp(finalState, new RSStencilOperation( |
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| 197 | pass->getStencilCheck(),pass->getStencilFunc(), pass->getStencilRefValue(), |
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| 198 | pass->getStencilMask(), pass->getStencilFailOp(), pass->getStencilDepthFailOp(), |
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| 199 | pass->getStencilPassOp(), pass->getStencilTwoSidedOperation() |
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| 200 | )); |
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| 201 | break; |
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| 202 | case CompositionPass::PT_RENDERSCENE: |
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| 203 | if(pass->getFirstRenderQueue() < finalState.currentQueueGroupID) |
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| 204 | { |
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| 205 | /// Mismatch -- warn user |
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| 206 | /// XXX We could support repeating the last queue, with some effort |
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| 207 | LogManager::getSingleton().logMessage("Warning in compilation of Compositor " |
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| 208 | +mCompositor->getName()+": Attempt to render queue "+ |
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| 209 | StringConverter::toString(pass->getFirstRenderQueue())+" before "+ |
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| 210 | StringConverter::toString(finalState.currentQueueGroupID)); |
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| 211 | } |
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| 212 | /// Add render queues |
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| 213 | for(int x=pass->getFirstRenderQueue(); x<=pass->getLastRenderQueue(); ++x) |
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| 214 | { |
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| 215 | assert(x>=0); |
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| 216 | finalState.renderQueues.set(x); |
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| 217 | } |
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| 218 | finalState.currentQueueGroupID = pass->getLastRenderQueue()+1; |
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| 219 | finalState.findVisibleObjects = true; |
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| 220 | finalState.materialScheme = target->getMaterialScheme(); |
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| 221 | finalState.shadowsEnabled = target->getShadowsEnabled(); |
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| 222 | |
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| 223 | break; |
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| 224 | case CompositionPass::PT_RENDERQUAD: |
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| 225 | srcmat = pass->getMaterial(); |
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| 226 | if(srcmat.isNull()) |
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| 227 | { |
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| 228 | /// No material -- warn user |
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| 229 | LogManager::getSingleton().logMessage("Warning in compilation of Compositor " |
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| 230 | +mCompositor->getName()+": No material defined for composition pass"); |
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| 231 | break; |
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| 232 | } |
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| 233 | srcmat->load(); |
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| 234 | if(srcmat->getNumSupportedTechniques()==0) |
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| 235 | { |
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| 236 | /// No supported techniques -- warn user |
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| 237 | LogManager::getSingleton().logMessage("Warning in compilation of Compositor " |
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| 238 | +mCompositor->getName()+": material "+srcmat->getName()+" has no supported techniques"); |
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| 239 | break; |
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| 240 | } |
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| 241 | srctech = srcmat->getBestTechnique(0); |
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| 242 | /// Create local material |
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| 243 | MaterialPtr mat = createLocalMaterial(); |
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| 244 | /// Copy and adapt passes from source material |
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| 245 | Technique::PassIterator i = srctech->getPassIterator(); |
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| 246 | while(i.hasMoreElements()) |
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| 247 | { |
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| 248 | Pass *srcpass = i.getNext(); |
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| 249 | /// Create new target pass |
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| 250 | targetpass = mat->getTechnique(0)->createPass(); |
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| 251 | (*targetpass) = (*srcpass); |
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| 252 | /// Set up inputs |
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| 253 | for(size_t x=0; x<pass->getNumInputs(); ++x) |
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| 254 | { |
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| 255 | String inp = pass->getInput(x); |
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| 256 | if(!inp.empty()) |
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| 257 | { |
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| 258 | if(x < targetpass->getNumTextureUnitStates()) |
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| 259 | { |
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| 260 | targetpass->getTextureUnitState((ushort)x)->setTextureName(getSourceForTex(inp)); |
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| 261 | } |
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| 262 | else |
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| 263 | { |
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| 264 | /// Texture unit not there |
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| 265 | LogManager::getSingleton().logMessage("Warning in compilation of Compositor " |
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| 266 | +mCompositor->getName()+": material "+srcmat->getName()+" texture unit " |
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| 267 | +StringConverter::toString(x)+" out of bounds"); |
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| 268 | } |
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| 269 | } |
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| 270 | } |
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| 271 | } |
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| 272 | queueRenderSystemOp(finalState, new RSQuadOperation(this,pass->getIdentifier(),mat)); |
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| 273 | break; |
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| 274 | } |
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| 275 | } |
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| 276 | } |
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| 277 | //----------------------------------------------------------------------- |
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| 278 | void CompositorInstance::_compileTargetOperations(CompiledState &compiledState) |
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| 279 | { |
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| 280 | /// Collect targets of previous state |
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| 281 | if(mPreviousInstance) |
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| 282 | mPreviousInstance->_compileTargetOperations(compiledState); |
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| 283 | /// Texture targets |
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| 284 | CompositionTechnique::TargetPassIterator it = mTechnique->getTargetPassIterator(); |
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| 285 | while(it.hasMoreElements()) |
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| 286 | { |
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| 287 | CompositionTargetPass *target = it.getNext(); |
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| 288 | |
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| 289 | TargetOperation ts(getTargetForTex(target->getOutputName())); |
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| 290 | /// Set "only initial" flag, visibilityMask and lodBias according to CompositionTargetPass. |
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| 291 | ts.onlyInitial = target->getOnlyInitial(); |
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| 292 | ts.visibilityMask = target->getVisibilityMask(); |
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| 293 | ts.lodBias = target->getLodBias(); |
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| 294 | ts.shadowsEnabled = target->getShadowsEnabled(); |
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| 295 | /// Check for input mode previous |
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| 296 | if(target->getInputMode() == CompositionTargetPass::IM_PREVIOUS) |
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| 297 | { |
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| 298 | /// Collect target state for previous compositor |
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| 299 | /// The TargetOperation for the final target is collected seperately as it is merged |
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| 300 | /// with later operations |
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| 301 | mPreviousInstance->_compileOutputOperation(ts); |
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| 302 | } |
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| 303 | /// Collect passes of our own target |
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| 304 | collectPasses(ts, target); |
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| 305 | compiledState.push_back(ts); |
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| 306 | } |
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| 307 | } |
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| 308 | //----------------------------------------------------------------------- |
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| 309 | void CompositorInstance::_compileOutputOperation(TargetOperation &finalState) |
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| 310 | { |
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| 311 | /// Final target |
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| 312 | CompositionTargetPass *tpass = mTechnique->getOutputTargetPass(); |
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| 313 | |
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| 314 | /// Logical-and together the visibilityMask, and multiply the lodBias |
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| 315 | finalState.visibilityMask &= tpass->getVisibilityMask(); |
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| 316 | finalState.lodBias *= tpass->getLodBias(); |
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| 317 | |
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| 318 | if(tpass->getInputMode() == CompositionTargetPass::IM_PREVIOUS) |
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| 319 | { |
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| 320 | /// Collect target state for previous compositor |
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| 321 | /// The TargetOperation for the final target is collected seperately as it is merged |
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| 322 | /// with later operations |
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| 323 | mPreviousInstance->_compileOutputOperation(finalState); |
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| 324 | } |
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| 325 | /// Collect passes |
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| 326 | collectPasses(finalState, tpass); |
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| 327 | } |
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| 328 | //----------------------------------------------------------------------- |
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| 329 | Compositor *CompositorInstance::getCompositor() |
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| 330 | { |
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| 331 | return mCompositor; |
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| 332 | } |
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| 333 | //----------------------------------------------------------------------- |
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| 334 | CompositionTechnique *CompositorInstance::getTechnique() |
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| 335 | { |
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| 336 | return mTechnique; |
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| 337 | } |
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| 338 | //----------------------------------------------------------------------- |
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| 339 | CompositorChain *CompositorInstance::getChain() |
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| 340 | { |
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| 341 | return mChain; |
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| 342 | } |
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| 343 | //----------------------------------------------------------------------- |
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| 344 | const String& CompositorInstance::getTextureInstanceName(const String& name) |
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| 345 | { |
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| 346 | return getSourceForTex(name); |
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| 347 | } |
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| 348 | //----------------------------------------------------------------------- |
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| 349 | MaterialPtr CompositorInstance::createLocalMaterial() |
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| 350 | { |
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| 351 | static size_t dummyCounter = 0; |
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| 352 | MaterialPtr mat = |
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| 353 | MaterialManager::getSingleton().create( |
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| 354 | "CompositorInstanceMaterial"+StringConverter::toString(dummyCounter), |
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| 355 | ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME |
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| 356 | ); |
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| 357 | ++dummyCounter; |
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| 358 | /// This is safe, as we hold a private reference |
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| 359 | /// XXX does not compile due to ResourcePtr conversion : |
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| 360 | /// MaterialManager::getSingleton().remove(mat); |
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| 361 | MaterialManager::getSingleton().remove(mat->getName()); |
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| 362 | /// Remove all passes from first technique |
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| 363 | mat->getTechnique(0)->removeAllPasses(); |
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| 364 | return mat; |
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| 365 | } |
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| 366 | //----------------------------------------------------------------------- |
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| 367 | void CompositorInstance::createResources() |
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| 368 | { |
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| 369 | static size_t dummyCounter = 0; |
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| 370 | freeResources(); |
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| 371 | /// Create temporary textures |
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| 372 | /// In principle, temporary textures could be shared between multiple viewports |
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| 373 | /// (CompositorChains). This will save a lot of memory in case more viewports |
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| 374 | /// are composited. |
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| 375 | CompositionTechnique::TextureDefinitionIterator it = mTechnique->getTextureDefinitionIterator(); |
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| 376 | while(it.hasMoreElements()) |
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| 377 | { |
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| 378 | CompositionTechnique::TextureDefinition *def = it.getNext(); |
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| 379 | /// Determine width and height |
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| 380 | size_t width = def->width; |
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| 381 | size_t height = def->height; |
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| 382 | if(width == 0) |
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| 383 | width = mChain->getViewport()->getActualWidth(); |
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| 384 | if(height == 0) |
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| 385 | height = mChain->getViewport()->getActualHeight(); |
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| 386 | /// Make the tetxure |
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| 387 | TexturePtr tex = TextureManager::getSingleton().createManual( |
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| 388 | "CompositorInstanceTexture"+StringConverter::toString(dummyCounter), |
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| 389 | ResourceGroupManager::INTERNAL_RESOURCE_GROUP_NAME, TEX_TYPE_2D, |
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| 390 | (uint)width, (uint)height, 0, def->format, TU_RENDERTARGET ); |
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| 391 | ++dummyCounter; |
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| 392 | mLocalTextures[def->name] = tex; |
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| 393 | |
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| 394 | /// Set up viewport over entire texture |
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| 395 | RenderTexture *rtt = tex->getBuffer()->getRenderTarget(); |
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| 396 | rtt->setAutoUpdated( false ); |
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| 397 | |
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| 398 | Camera* camera = mChain->getViewport()->getCamera(); |
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| 399 | |
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| 400 | // Save last viewport and current aspect ratio |
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| 401 | Viewport* oldViewport = camera->getViewport(); |
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| 402 | Real aspectRatio = camera->getAspectRatio(); |
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| 403 | |
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| 404 | Viewport* v = rtt->addViewport( camera ); |
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| 405 | v->setClearEveryFrame( false ); |
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| 406 | v->setOverlaysEnabled( false ); |
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| 407 | v->setBackgroundColour( ColourValue( 0, 0, 0, 0 ) ); |
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| 408 | |
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| 409 | // Should restore aspect ratio, in case of auto aspect ratio |
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| 410 | // enabled, it'll changed when add new viewport. |
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| 411 | camera->setAspectRatio(aspectRatio); |
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| 412 | // Should restore last viewport, i.e. never disturb user code |
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| 413 | // which might based on that. |
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| 414 | camera->_notifyViewport(oldViewport); |
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| 415 | } |
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| 416 | |
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| 417 | } |
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| 418 | //----------------------------------------------------------------------- |
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| 419 | void CompositorInstance::freeResources() |
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| 420 | { |
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| 421 | /// Remove temporary textures |
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| 422 | /// LocalTextureMap mLocalTextures; |
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| 423 | LocalTextureMap::iterator i, iend=mLocalTextures.end(); |
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| 424 | for(i=mLocalTextures.begin(); i!=iend; ++i) |
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| 425 | { |
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| 426 | TextureManager::getSingleton().remove(i->second->getName()); |
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| 427 | } |
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| 428 | mLocalTextures.clear(); |
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| 429 | } |
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| 430 | //----------------------------------------------------------------------- |
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| 431 | RenderTarget *CompositorInstance::getTargetForTex(const String &name) |
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| 432 | { |
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| 433 | LocalTextureMap::iterator i = mLocalTextures.find(name); |
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| 434 | if(i == mLocalTextures.end()) |
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| 435 | { |
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| 436 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Non-existent local texture name", "CompositorInstance::getTargetForTex"); |
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| 437 | } |
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| 438 | return i->second->getBuffer()->getRenderTarget(); |
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| 439 | } |
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| 440 | //----------------------------------------------------------------------- |
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| 441 | const String &CompositorInstance::getSourceForTex(const String &name) |
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| 442 | { |
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| 443 | LocalTextureMap::iterator i = mLocalTextures.find(name); |
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| 444 | if(i == mLocalTextures.end()) |
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| 445 | { |
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| 446 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Non-existent local texture name", "CompositorInstance::getSourceForTex"); |
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| 447 | } |
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| 448 | return i->second->getName(); |
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| 449 | } |
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| 450 | //----------------------------------------------------------------------- |
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| 451 | void CompositorInstance::queueRenderSystemOp(TargetOperation &finalState, RenderSystemOperation *op) |
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| 452 | { |
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| 453 | /// Store operation for current QueueGroup ID |
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| 454 | finalState.renderSystemOperations.push_back(RenderSystemOpPair(finalState.currentQueueGroupID, op)); |
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| 455 | /// Tell parent for deletion |
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| 456 | mChain->_queuedOperation(op); |
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| 457 | } |
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| 458 | //----------------------------------------------------------------------- |
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| 459 | void CompositorInstance::addListener(Listener *l) |
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| 460 | { |
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| 461 | mListeners.push_back(l); |
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| 462 | } |
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| 463 | //----------------------------------------------------------------------- |
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| 464 | void CompositorInstance::removeListener(Listener *l) |
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| 465 | { |
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| 466 | mListeners.erase(std::find(mListeners.begin(), mListeners.end(), l)); |
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| 467 | } |
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| 468 | //----------------------------------------------------------------------- |
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| 469 | void CompositorInstance::_fireNotifyMaterialSetup(uint32 pass_id, MaterialPtr &mat) |
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| 470 | { |
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| 471 | Listeners::iterator i, iend=mListeners.end(); |
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| 472 | for(i=mListeners.begin(); i!=iend; ++i) |
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| 473 | (*i)->notifyMaterialSetup(pass_id, mat); |
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| 474 | } |
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| 475 | //----------------------------------------------------------------------- |
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| 476 | void CompositorInstance::_fireNotifyMaterialRender(uint32 pass_id, MaterialPtr &mat) |
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| 477 | { |
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| 478 | Listeners::iterator i, iend=mListeners.end(); |
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| 479 | for(i=mListeners.begin(); i!=iend; ++i) |
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| 480 | (*i)->notifyMaterialRender(pass_id, mat); |
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| 481 | } |
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| 482 | //----------------------------------------------------------------------- |
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| 483 | CompositorInstance::RenderSystemOperation::~RenderSystemOperation() |
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| 484 | { |
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| 485 | } |
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| 486 | //----------------------------------------------------------------------- |
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| 487 | CompositorInstance::Listener::~Listener() |
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| 488 | { |
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| 489 | } |
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| 490 | void CompositorInstance::Listener::notifyMaterialSetup(uint32 pass_id, MaterialPtr &mat) |
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| 491 | { |
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| 492 | } |
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| 493 | void CompositorInstance::Listener::notifyMaterialRender(uint32 pass_id, MaterialPtr &mat) |
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| 494 | { |
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| 495 | } |
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| 496 | //----------------------------------------------------------------------- |
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| 497 | |
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| 498 | } |
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