[1682] | 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) 2000-2005 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 | #include "OgreStableHeaders.h"
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| 26 | #include "OgrePredefinedControllers.h"
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| 27 |
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| 28 | #include "OgreRoot.h"
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| 29 | #include "OgreMath.h"
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| 30 | #include "OgreLogManager.h"
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| 31 | #include "OgreTextureUnitState.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 | // FrameTimeControllerValue
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| 37 | //-----------------------------------------------------------------------
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| 38 | FrameTimeControllerValue::FrameTimeControllerValue()
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| 39 | {
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| 40 | // Register self
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| 41 | #ifdef GAMETOOLS_ILLUMINATION_MODULE
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[2129] | 42 | this->setPriority(0);
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[1682] | 43 | #endif
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| 44 | Root::getSingleton().addFrameListener(this);
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| 45 | mFrameTime = 0;
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| 46 | mTimeFactor = 1;
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| 47 | mFrameDelay = 0;
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| 48 | mElapsedTime = 0;
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| 49 |
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| 50 | }
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| 51 | //-----------------------------------------------------------------------
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| 52 | bool FrameTimeControllerValue::frameStarted(const FrameEvent &evt)
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| 53 | {
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| 54 | if(mFrameDelay)
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| 55 | {
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| 56 | // Fixed frame time
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| 57 | mFrameTime = mFrameDelay;
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| 58 | mTimeFactor = mFrameDelay / evt.timeSinceLastFrame;
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| 59 | }
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| 60 | else
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| 61 | {
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| 62 | // Save the time value after applying time factor
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| 63 | mFrameTime = mTimeFactor * evt.timeSinceLastFrame;
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| 64 | }
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| 65 | // Accumulate the elapsed time
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| 66 | mElapsedTime += mFrameTime;
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| 67 | return true;
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| 68 | }
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| 69 | //-----------------------------------------------------------------------
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| 70 | bool FrameTimeControllerValue::frameEnded(const FrameEvent &evt)
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| 71 | {
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| 72 | return true;
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| 73 | }
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| 74 | //-----------------------------------------------------------------------
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| 75 | Real FrameTimeControllerValue::getValue() const
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| 76 | {
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| 77 | return mFrameTime;
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| 78 | }
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| 79 | //-----------------------------------------------------------------------
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| 80 | void FrameTimeControllerValue::setValue(Real value)
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| 81 | {
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| 82 | // Do nothing - value is set from frame listener
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| 83 | }
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| 84 | //-----------------------------------------------------------------------
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| 85 | Real FrameTimeControllerValue::getTimeFactor(void) const {
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| 86 | return mTimeFactor;
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| 87 | }
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| 88 | //-----------------------------------------------------------------------
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| 89 | void FrameTimeControllerValue::setTimeFactor(Real tf) {
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| 90 | if(tf >= 0)
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| 91 | {
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| 92 | mTimeFactor = tf;
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| 93 | mFrameDelay = 0;
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| 94 | }
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| 95 | }
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| 96 | //-----------------------------------------------------------------------
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| 97 | Real FrameTimeControllerValue::getFrameDelay(void) const {
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| 98 | return mFrameDelay;
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| 99 | }
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| 100 | //-----------------------------------------------------------------------
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| 101 | void FrameTimeControllerValue::setFrameDelay(Real fd) {
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| 102 | mTimeFactor = 0;
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| 103 | mFrameDelay = fd;
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| 104 | }
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| 105 | //-----------------------------------------------------------------------
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| 106 | Real FrameTimeControllerValue::getElapsedTime(void) const
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| 107 | {
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| 108 | return mElapsedTime;
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| 109 | }
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| 110 | //-----------------------------------------------------------------------
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| 111 | void FrameTimeControllerValue::setElapsedTime(Real elapsedTime)
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| 112 | {
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| 113 | mElapsedTime = elapsedTime;
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| 114 | }
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| 115 | //-----------------------------------------------------------------------
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| 116 | // TextureFrameControllerValue
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| 117 | //-----------------------------------------------------------------------
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| 118 | TextureFrameControllerValue::TextureFrameControllerValue(TextureUnitState* t)
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| 119 | {
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| 120 | mTextureLayer = t;
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| 121 | }
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| 122 | //-----------------------------------------------------------------------
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| 123 | Real TextureFrameControllerValue::getValue(void) const
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| 124 | {
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| 125 | int numFrames = mTextureLayer->getNumFrames();
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| 126 | return (mTextureLayer->getCurrentFrame() / numFrames);
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| 127 | }
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| 128 | //-----------------------------------------------------------------------
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| 129 | void TextureFrameControllerValue::setValue(Real value)
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| 130 | {
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| 131 | int numFrames = mTextureLayer->getNumFrames();
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| 132 | mTextureLayer->setCurrentFrame((int)(value * numFrames) % numFrames);
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| 133 | }
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| 134 | //-----------------------------------------------------------------------
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| 135 | // TexCoordModifierControllerValue
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| 136 | //-----------------------------------------------------------------------
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| 137 | TexCoordModifierControllerValue::TexCoordModifierControllerValue(TextureUnitState* t,
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| 138 | bool translateU, bool translateV, bool scaleU, bool scaleV, bool rotate )
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| 139 | {
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| 140 | mTextureLayer = t;
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| 141 | mTransU = translateU;
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| 142 | mTransV = translateV;
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| 143 | mScaleU = scaleU;
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| 144 | mScaleV = scaleV;
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| 145 | mRotate = rotate;
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| 146 | }
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| 147 | //-----------------------------------------------------------------------
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| 148 | Real TexCoordModifierControllerValue::getValue() const
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| 149 | {
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| 150 | const Matrix4& pMat = mTextureLayer->getTextureTransform();
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| 151 | if (mTransU)
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| 152 | {
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| 153 | return pMat[0][3];
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| 154 | }
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| 155 | else if (mTransV)
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| 156 | {
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| 157 | return pMat[1][3];
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| 158 | }
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| 159 | else if (mScaleU)
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| 160 | {
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| 161 | return pMat[0][0];
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| 162 | }
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| 163 | else if (mScaleV)
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| 164 | {
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| 165 | return pMat[1][1];
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| 166 | }
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| 167 | // Shouldn't get here
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| 168 | return 0;
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| 169 | }
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| 170 | //-----------------------------------------------------------------------
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| 171 | void TexCoordModifierControllerValue::setValue(Real value)
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| 172 | {
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| 173 | if (mTransU)
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| 174 | {
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| 175 | mTextureLayer->setTextureUScroll(value);
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| 176 | }
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| 177 | if (mTransV)
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| 178 | {
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| 179 | mTextureLayer->setTextureVScroll(value);
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| 180 | }
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| 181 | if (mScaleU)
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| 182 | {
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| 183 | if (value >= 0)
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| 184 | {
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| 185 | // Add 1 to scale (+ve scales up)
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| 186 | mTextureLayer->setTextureUScale(1 + value);
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| 187 | }
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| 188 | else
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| 189 | {
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| 190 | // (-ve scales down)
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| 191 | mTextureLayer->setTextureUScale(1 / -value);
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| 192 | }
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| 193 | }
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| 194 | if (mScaleV)
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| 195 | {
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| 196 | if (value >= 0)
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| 197 | {
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| 198 | // Add 1 to scale (+ve scales up)
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| 199 | mTextureLayer->setTextureVScale(1 + value);
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| 200 | }
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| 201 | else
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| 202 | {
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| 203 | // (-ve scales down)
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| 204 | mTextureLayer->setTextureVScale(1 / -value);
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| 205 | }
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| 206 | }
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| 207 | if (mRotate)
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| 208 | {
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| 209 | mTextureLayer->setTextureRotate(Radian(value * Math::TWO_PI));
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| 210 | }
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| 211 | }
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| 212 | //-----------------------------------------------------------------------
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| 213 | //-----------------------------------------------------------------------
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| 214 | FloatGpuParameterControllerValue::FloatGpuParameterControllerValue(
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| 215 | GpuProgramParameters* params, size_t index) :
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| 216 | mParams(params), mParamIndex(index)
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| 217 | {
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| 218 | }
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| 219 | //-----------------------------------------------------------------------
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| 220 | Real FloatGpuParameterControllerValue::getValue(void) const
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| 221 | {
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| 222 | // do nothing, reading from a set of params not supported
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| 223 | return 0.0f;
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| 224 | }
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| 225 | //-----------------------------------------------------------------------
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| 226 | void FloatGpuParameterControllerValue::setValue(Real val)
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| 227 | {
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| 228 | static Vector4 v4 = Vector4(0,0,0,0);
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| 229 | v4.x = val;
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| 230 | mParams->setConstant(mParamIndex, v4);
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| 231 | }
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| 232 | //-----------------------------------------------------------------------
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| 233 | // PassthroughControllerFunction
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| 234 | //-----------------------------------------------------------------------
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| 235 | PassthroughControllerFunction::PassthroughControllerFunction(bool delta)
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| 236 | : ControllerFunction<Real>(delta)
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| 237 | {
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| 238 | }
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| 239 | //-----------------------------------------------------------------------
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| 240 | Real PassthroughControllerFunction::calculate(Real source)
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| 241 | {
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| 242 | return getAdjustedInput(source);
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| 243 |
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| 244 | }
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| 245 | //-----------------------------------------------------------------------
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| 246 | // AnimationControllerFunction
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| 247 | //-----------------------------------------------------------------------
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| 248 | AnimationControllerFunction::AnimationControllerFunction(Real sequenceTime, Real timeOffset)
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| 249 | : ControllerFunction<Real>(false)
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| 250 | {
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| 251 | mSeqTime = sequenceTime;
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| 252 | mTime = timeOffset;
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| 253 | }
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| 254 | //-----------------------------------------------------------------------
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| 255 | Real AnimationControllerFunction::calculate(Real source)
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| 256 | {
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| 257 | // Assume source is time since last update
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| 258 | mTime += source;
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| 259 | // Wrap
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| 260 | while (mTime >= mSeqTime) mTime -= mSeqTime;
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| 261 | while (mTime < 0) mTime += mSeqTime;
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| 262 |
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| 263 | // Return parametric
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| 264 | return mTime / mSeqTime;
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| 265 | }
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| 266 | //-----------------------------------------------------------------------
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| 267 | // ScaleControllerFunction
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| 268 | //-----------------------------------------------------------------------
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| 269 | ScaleControllerFunction::ScaleControllerFunction(Real factor, bool delta) : ControllerFunction<Real>(delta)
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| 270 | {
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| 271 | mScale = factor;
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| 272 | }
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| 273 | //-----------------------------------------------------------------------
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| 274 | Real ScaleControllerFunction::calculate(Real source)
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| 275 | {
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| 276 | return getAdjustedInput(source * mScale);
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| 277 |
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| 278 | }
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| 279 | //-----------------------------------------------------------------------
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| 280 | // WaveformControllerFunction
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| 281 | //-----------------------------------------------------------------------
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| 282 | WaveformControllerFunction::WaveformControllerFunction(WaveformType wType, Real base, Real frequency, Real phase, Real amplitude, bool delta, Real dutyCycle)
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| 283 | :ControllerFunction<Real>(delta)
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| 284 | {
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| 285 | mWaveType = wType;
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| 286 | mBase = base;
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| 287 | mFrequency = frequency;
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| 288 | mPhase = phase;
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| 289 | mAmplitude = amplitude;
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| 290 | mDeltaCount = phase;
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| 291 | mDutyCycle = dutyCycle;
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| 292 | }
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| 293 | //-----------------------------------------------------------------------
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| 294 | Real WaveformControllerFunction::getAdjustedInput(Real input)
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| 295 | {
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| 296 | Real adjusted = ControllerFunction<Real>::getAdjustedInput(input);
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| 297 |
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| 298 | // If not delta, adjust by phase here
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| 299 | // (delta inputs have it adjusted at initialisation)
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| 300 | if (!mDeltaInput)
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| 301 | {
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| 302 | adjusted += mPhase;
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| 303 | }
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| 304 |
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| 305 | return adjusted;
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| 306 | }
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| 307 | //-----------------------------------------------------------------------
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| 308 | Real WaveformControllerFunction::calculate(Real source)
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| 309 | {
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| 310 | Real input = getAdjustedInput(source * mFrequency);
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| 311 | Real output;
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| 312 | // For simplicity, factor input down to {0,1)
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| 313 | // Use looped subtract rather than divide / round
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| 314 | while (input >= 1.0)
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| 315 | input -= 1.0;
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| 316 | while (input < 0.0)
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| 317 | input += 1.0;
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| 318 |
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| 319 | // Calculate output in -1..1 range
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| 320 | switch (mWaveType)
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| 321 | {
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| 322 | case WFT_SINE:
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| 323 | output = Math::Sin(Radian(input * Math::TWO_PI));
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| 324 | break;
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| 325 | case WFT_TRIANGLE:
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| 326 | if (input < 0.25)
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| 327 | output = input * 4;
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| 328 | else if (input >= 0.25 && input < 0.75)
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| 329 | output = 1.0 - ((input - 0.25) * 4);
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| 330 | else
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| 331 | output = ((input - 0.75) * 4) - 1.0;
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| 332 |
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| 333 | break;
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| 334 | case WFT_SQUARE:
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| 335 | if (input <= 0.5)
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| 336 | output = 1.0;
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| 337 | else
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| 338 | output = -1.0;
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| 339 | break;
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| 340 | case WFT_SAWTOOTH:
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| 341 | output = (input * 2) - 1;
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| 342 | break;
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| 343 | case WFT_INVERSE_SAWTOOTH:
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| 344 | output = -((input * 2) - 1);
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| 345 | break;
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| 346 | case WFT_PWM:
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| 347 | if( input <= mDutyCycle )
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| 348 | output = 1.0;
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| 349 | else
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| 350 | output = -1.0;
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| 351 | break;
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| 352 | }
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| 353 |
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| 354 | // Scale output into 0..1 range and then by base + amplitude
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| 355 | return mBase + ((output + 1.0) * 0.5 * mAmplitude);
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| 356 |
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| 357 |
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| 358 | }
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| 359 | }
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| 360 |
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