[1092] | 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://ogre.sourceforge.net/
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| 6 |
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| 7 | Copyright (c) 2000-2005 The OGRE Team
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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 | */
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| 25 | #ifndef __AutoParamDataSource_H_
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| 26 | #define __AutoParamDataSource_H_
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| 27 |
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| 28 | #include "OgrePrerequisites.h"
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| 29 | #include "OgreCommon.h"
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| 30 | #include "OgreMatrix4.h"
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| 31 | #include "OgreVector4.h"
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| 32 | #include "OgreLight.h"
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| 33 | #include "OgreColourValue.h"
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| 34 |
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| 35 | namespace Ogre {
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| 36 |
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| 37 |
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| 38 | /** This utility class is used to hold the information used to generate the matrices
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| 39 | and other information required to automatically populate GpuProgramParameters.
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| 40 | @remarks
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| 41 | This class exercises a lazy-update scheme in order to avoid having to update all
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| 42 | the information a GpuProgramParameters class could possibly want all the time.
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| 43 | It relies on the SceneManager to update it when the base data has changed, and
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| 44 | will calculate concatenated matrices etc only when required, passing back precalculated
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| 45 | matrices when they are requested more than once when the underlying information has
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| 46 | not altered.
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| 47 | */
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| 48 | class _OgreExport AutoParamDataSource
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| 49 | {
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| 50 | protected:
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| 51 | mutable Matrix4 mWorldMatrix[256];
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| 52 | mutable size_t mWorldMatrixCount;
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| 53 | mutable Matrix4 mWorldViewMatrix;
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| 54 | mutable Matrix4 mViewProjMatrix;
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| 55 | mutable Matrix4 mWorldViewProjMatrix;
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| 56 | mutable Matrix4 mInverseWorldMatrix;
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| 57 | mutable Matrix4 mInverseWorldViewMatrix;
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| 58 | mutable Matrix4 mInverseViewMatrix;
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| 59 | mutable Matrix4 mInverseTransposeWorldMatrix;
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| 60 | mutable Matrix4 mInverseTransposeWorldViewMatrix;
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| 61 | mutable Vector4 mCameraPositionObjectSpace;
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| 62 | mutable Matrix4 mTextureViewProjMatrix;
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| 63 | mutable Matrix4 mProjectionMatrix;
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| 64 | mutable Real mDirLightExtrusionDistance;
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| 65 | mutable Vector4 mCameraPosition;
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| 66 |
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| 67 | mutable bool mWorldMatrixDirty;
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| 68 | mutable bool mWorldViewMatrixDirty;
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| 69 | mutable bool mViewProjMatrixDirty;
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| 70 | mutable bool mWorldViewProjMatrixDirty;
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| 71 | mutable bool mInverseWorldMatrixDirty;
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| 72 | mutable bool mInverseWorldViewMatrixDirty;
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| 73 | mutable bool mInverseViewMatrixDirty;
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| 74 | mutable bool mInverseTransposeWorldMatrixDirty;
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| 75 | mutable bool mInverseTransposeWorldViewMatrixDirty;
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| 76 | mutable bool mCameraPositionObjectSpaceDirty;
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| 77 | mutable bool mCameraPositionDirty;
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| 78 | mutable bool mTextureViewProjMatrixDirty;
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| 79 | mutable ColourValue mAmbientLight;
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| 80 |
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| 81 | const Renderable* mCurrentRenderable;
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| 82 | const Camera* mCurrentCamera;
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| 83 | const LightList* mCurrentLightList;
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| 84 | const Frustum* mCurrentTextureProjector;
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| 85 | const RenderTarget* mCurrentRenderTarget;
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| 86 |
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| 87 | Light mBlankLight;
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| 88 | public:
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| 89 | AutoParamDataSource();
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| 90 | ~AutoParamDataSource();
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| 91 | /** Updates the current renderable */
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| 92 | void setCurrentRenderable(const Renderable* rend);
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| 93 | /** Updates the current camera */
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| 94 | void setCurrentCamera(const Camera* cam);
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| 95 | /** Sets the light list that should be used */
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| 96 | void setCurrentLightList(const LightList* ll);
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| 97 | /** Sets the current texture projector */
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| 98 | void setTextureProjector(const Frustum* frust);
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| 99 | /** Sets the current render target */
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| 100 | void setCurrentRenderTarget(const RenderTarget* target);
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| 101 | /** Sets the shadow extrusion distance to be used for point lights. */
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| 102 | void setShadowDirLightExtrusionDistance(Real dist);
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| 103 |
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| 104 | const Matrix4& getWorldMatrix(void) const;
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| 105 | const Matrix4* getWorldMatrixArray(void) const;
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| 106 | size_t getWorldMatrixCount(void) const;
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| 107 | const Matrix4& getViewMatrix(void) const;
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| 108 | const Matrix4& getViewProjectionMatrix(void) const;
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| 109 | const Matrix4& getProjectionMatrix(void) const;
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| 110 | const Matrix4& getWorldViewProjMatrix(void) const;
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| 111 | const Matrix4& getWorldViewMatrix(void) const;
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| 112 | const Matrix4& getInverseWorldMatrix(void) const;
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| 113 | const Matrix4& getInverseWorldViewMatrix(void) const;
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| 114 | const Matrix4& getInverseViewMatrix(void) const;
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| 115 | const Matrix4& getInverseTransposeWorldMatrix(void) const;
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| 116 | const Matrix4& getInverseTransposeWorldViewMatrix(void) const;
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| 117 | const Vector4& getCameraPosition(void) const;
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| 118 | const Vector4& getCameraPositionObjectSpace(void) const;
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| 119 | /** Get the light which is 'index'th closest to the current object */
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| 120 | const Light& getLight(size_t index) const;
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| 121 | void setAmbientLightColour(const ColourValue& ambient);
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| 122 | const ColourValue& getAmbientLightColour(void) const;
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| 123 | const Matrix4& getTextureViewProjMatrix(void) const;
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| 124 | const RenderTarget* getCurrentRenderTarget(void) const;
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| 125 | const Renderable* getCurrentRenderable(void) const;
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| 126 | Real getShadowExtrusionDistance(void) const;
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| 127 | Matrix4 getInverseViewProjMatrix(void) const;
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| 128 | Matrix4 getInverseTransposeViewProjMatrix() const;
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| 129 | Matrix4 getTransposeViewProjMatrix() const;
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| 130 | Matrix4 getTransposeViewMatrix() const;
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| 131 | Matrix4 getTransposeProjectionMatrix() const;
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| 132 | Matrix4 getInverseProjectionMatrix() const;
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| 133 | Matrix4 getInverseTransposeProjectionMatrix() const;
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| 134 | Matrix4 getTransposeWorldViewProjMatrix() const;
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| 135 | Matrix4 getInverseWorldViewProjMatrix() const;
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| 136 | Matrix4 getInverseTransposeWorldViewProjMatrix() const;
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| 137 | Matrix4 getTransposeWorldViewMatrix() const;
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| 138 | Matrix4 getTransposeWorldMatrix() const;
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| 139 | Real getTime(void) const;
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| 140 | Real getTime_0_X(Real x) const;
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| 141 | Real getCosTime_0_X(Real x) const;
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| 142 | Real getSinTime_0_X(Real x) const;
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| 143 | Real getTanTime_0_X(Real x) const;
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| 144 | Vector4 getTime_0_X_packed(Real x) const;
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| 145 | Real getTime_0_1(Real x) const;
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| 146 | Real getCosTime_0_1(Real x) const;
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| 147 | Real getSinTime_0_1(Real x) const;
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| 148 | Real getTanTime_0_1(Real x) const;
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| 149 | Vector4 getTime_0_1_packed(Real x) const;
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| 150 | Real getTime_0_2Pi(Real x) const;
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| 151 | Real getCosTime_0_2Pi(Real x) const;
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| 152 | Real getSinTime_0_2Pi(Real x) const;
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| 153 | Real getTanTime_0_2Pi(Real x) const;
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| 154 | Vector4 getTime_0_2Pi_packed(Real x) const;
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| 155 | Real getFPS() const;
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| 156 | Real getViewportWidth() const;
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| 157 | Real getViewportHeight() const;
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| 158 | Real getInverseViewportWidth() const;
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| 159 | Real getInverseViewportHeight() const;
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| 160 | Vector3 getViewDirection() const;
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| 161 | Vector3 getViewSideVector() const;
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| 162 | Vector3 getViewUpVector() const;
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| 163 | Real getFOV() const;
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| 164 | Real getNearClipDistance() const;
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| 165 | Real getFarClipDistance() const;
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| 166 | };
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| 167 | }
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| 168 |
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| 169 | #endif
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