source: OGRE/trunk/ogrenew/OgreMain/include/OgreAutoParamDataSource.h @ 692

Revision 692, 8.1 KB checked in by mattausch, 19 years ago (diff)

adding ogre 1.2 and dependencies
RevLine 
[692]1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4    (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://ogre.sourceforge.net/
6
7Copyright (c) 2000-2005 The OGRE Team
8Also see acknowledgements in Readme.html
9
10This program is free software; you can redistribute it and/or modify it under
11the terms of the GNU Lesser General Public License as published by the Free Software
12Foundation; either version 2 of the License, or (at your option) any later
13version.
14
15This program is distributed in the hope that it will be useful, but WITHOUT
16ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
17FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
18
19You should have received a copy of the GNU Lesser General Public License along with
20this program; if not, write to the Free Software Foundation, Inc., 59 Temple
21Place - Suite 330, Boston, MA 02111-1307, USA, or go to
22http://www.gnu.org/copyleft/lesser.txt.
23-----------------------------------------------------------------------------
24*/
25#ifndef __AutoParamDataSource_H_
26#define __AutoParamDataSource_H_
27
28#include "OgrePrerequisites.h"
29#include "OgreCommon.h"
30#include "OgreMatrix4.h"
31#include "OgreVector4.h"
32#include "OgreLight.h"
33#include "OgreColourValue.h"
34
35namespace Ogre {
36
37
38    /** This utility class is used to hold the information used to generate the matrices
39    and other information required to automatically populate GpuProgramParameters.
40    @remarks
41        This class exercises a lazy-update scheme in order to avoid having to update all
42        the information a GpuProgramParameters class could possibly want all the time.
43        It relies on the SceneManager to update it when the base data has changed, and
44        will calculate concatenated matrices etc only when required, passing back precalculated
45        matrices when they are requested more than once when the underlying information has
46        not altered.
47    */
48    class _OgreExport AutoParamDataSource
49    {
50    protected:
51        mutable Matrix4 mWorldMatrix[256];
52        mutable size_t mWorldMatrixCount;
53        mutable Matrix4 mWorldViewMatrix;
54        mutable Matrix4 mViewProjMatrix;
55        mutable Matrix4 mWorldViewProjMatrix;
56        mutable Matrix4 mInverseWorldMatrix;
57        mutable Matrix4 mInverseWorldViewMatrix;
58        mutable Matrix4 mInverseViewMatrix;
59        mutable Matrix4 mInverseTransposeWorldMatrix;
60        mutable Matrix4 mInverseTransposeWorldViewMatrix;
61        mutable Vector4 mCameraPositionObjectSpace;
62        mutable Matrix4 mTextureViewProjMatrix;
63        mutable Matrix4 mViewMatrix;
64        mutable Matrix4 mProjectionMatrix;
65                mutable Real mDirLightExtrusionDistance;
66        mutable Vector4 mCameraPosition;
67
68        mutable bool mWorldMatrixDirty;
69        mutable bool mViewMatrixDirty;
70        mutable bool mProjMatrixDirty;
71        mutable bool mWorldViewMatrixDirty;
72        mutable bool mViewProjMatrixDirty;
73        mutable bool mWorldViewProjMatrixDirty;
74        mutable bool mInverseWorldMatrixDirty;
75        mutable bool mInverseWorldViewMatrixDirty;
76        mutable bool mInverseViewMatrixDirty;
77        mutable bool mInverseTransposeWorldMatrixDirty;
78        mutable bool mInverseTransposeWorldViewMatrixDirty;
79        mutable bool mCameraPositionObjectSpaceDirty;
80        mutable bool mCameraPositionDirty;
81        mutable bool mTextureViewProjMatrixDirty;
82                mutable ColourValue mAmbientLight;
83        mutable ColourValue mFogColour;
84        mutable Vector4 mFogParams;
85        mutable int mPassNumber;
86
87        const Renderable* mCurrentRenderable;
88        const Camera* mCurrentCamera;
89        const LightList* mCurrentLightList;
90        const Frustum* mCurrentTextureProjector;
91        const RenderTarget* mCurrentRenderTarget;
92        const Viewport* mCurrentViewport;
93
94        Light mBlankLight;
95    public:
96        AutoParamDataSource();
97        ~AutoParamDataSource();
98        /** Updates the current renderable */
99        void setCurrentRenderable(const Renderable* rend);
100        /** Updates the current camera */
101        void setCurrentCamera(const Camera* cam);
102        /** Sets the light list that should be used */
103        void setCurrentLightList(const LightList* ll);
104        /** Sets the current texture projector */
105        void setTextureProjector(const Frustum* frust);
106        /** Sets the current render target */
107        void setCurrentRenderTarget(const RenderTarget* target);
108        /** Sets the current viewport */
109        void setCurrentViewport(const Viewport* viewport);
110                /** Sets the shadow extrusion distance to be used for point lights. */
111                void setShadowDirLightExtrusionDistance(Real dist);
112
113        const Matrix4& getWorldMatrix(void) const;
114        const Matrix4* getWorldMatrixArray(void) const;
115        size_t getWorldMatrixCount(void) const;
116        const Matrix4& getViewMatrix(void) const;
117        const Matrix4& getViewProjectionMatrix(void) const;
118        const Matrix4& getProjectionMatrix(void) const;
119        const Matrix4& getWorldViewProjMatrix(void) const;
120        const Matrix4& getWorldViewMatrix(void) const;
121        const Matrix4& getInverseWorldMatrix(void) const;
122        const Matrix4& getInverseWorldViewMatrix(void) const;
123        const Matrix4& getInverseViewMatrix(void) const;
124        const Matrix4& getInverseTransposeWorldMatrix(void) const;
125        const Matrix4& getInverseTransposeWorldViewMatrix(void) const;
126        const Vector4& getCameraPosition(void) const;
127        const Vector4& getCameraPositionObjectSpace(void) const;
128        /** Get the light which is 'index'th closest to the current object */
129        const Light& getLight(size_t index) const;
130                void setAmbientLightColour(const ColourValue& ambient);
131                const ColourValue& getAmbientLightColour(void) const;
132        void setFog(FogMode mode, const ColourValue& colour, Real expDensity, Real linearStart, Real linearEnd);
133        const ColourValue& getFogColour(void) const;
134        const Vector4& getFogParams(void) const;
135        const Matrix4& getTextureViewProjMatrix(void) const;
136        const RenderTarget* getCurrentRenderTarget(void) const;
137        const Renderable* getCurrentRenderable(void) const;
138                Real getShadowExtrusionDistance(void) const;
139                Matrix4 getInverseViewProjMatrix(void) const;
140                Matrix4 getInverseTransposeViewProjMatrix() const;
141                Matrix4 getTransposeViewProjMatrix() const;
142                Matrix4 getTransposeViewMatrix() const;
143                Matrix4 getTransposeProjectionMatrix() const;
144                Matrix4 getInverseProjectionMatrix() const;
145                Matrix4 getInverseTransposeProjectionMatrix() const;
146                Matrix4 getTransposeWorldViewProjMatrix() const;
147                Matrix4 getInverseWorldViewProjMatrix() const;
148                Matrix4 getInverseTransposeWorldViewProjMatrix() const;
149                Matrix4 getTransposeWorldViewMatrix() const;
150                Matrix4 getTransposeWorldMatrix() const;
151        Real getTime(void) const;
152                Real getTime_0_X(Real x) const;
153                Real getCosTime_0_X(Real x) const;
154                Real getSinTime_0_X(Real x) const;
155                Real getTanTime_0_X(Real x) const;
156                Vector4 getTime_0_X_packed(Real x) const;
157                Real getTime_0_1(Real x) const;
158                Real getCosTime_0_1(Real x) const;
159                Real getSinTime_0_1(Real x) const;
160                Real getTanTime_0_1(Real x) const;
161                Vector4 getTime_0_1_packed(Real x) const;
162                Real getTime_0_2Pi(Real x) const;
163                Real getCosTime_0_2Pi(Real x) const;
164                Real getSinTime_0_2Pi(Real x) const;
165                Real getTanTime_0_2Pi(Real x) const;
166                Vector4 getTime_0_2Pi_packed(Real x) const;
167        Real getFrameTime(void) const;
168                Real getFPS() const;
169                Real getViewportWidth() const;
170                Real getViewportHeight() const;
171                Real getInverseViewportWidth() const;
172                Real getInverseViewportHeight() const;
173                Vector3 getViewDirection() const;
174                Vector3 getViewSideVector() const;
175                Vector3 getViewUpVector() const;
176                Real getFOV() const;
177                Real getNearClipDistance() const;
178                Real getFarClipDistance() const;
179        int getPassNumber(void) const;
180        void setPassNumber(const int passNumber);
181        void incPassNumber(void);
182    };
183}
184
185#endif
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