source: GTP/trunk/Lib/Illum/IBRBillboardCloudTrees/OGRE/src/LBBCEntityTextureAtlasViewMode.cpp @ 864

Revision 864, 5.8 KB checked in by igarcia, 19 years ago (diff)
Line 
1
2#include "LBBCEntityTextureAtlasViewMode.h"
3
4namespace LBBC
5{
6
7EntityTextureAtlasViewMode::EntityTextureAtlasViewMode(Ogre::RenderWindow* win, unsigned int ogreFrameListenerModeHandle, bool useBufferedInputKeys, bool useBufferedInputMouse)
8:OBA::OgreFrameListenerMode(win, ogreFrameListenerModeHandle, useBufferedInputKeys, useBufferedInputMouse)
9{       
10        mTextureAtlasGenerated = false;
11        mFrame = 0;
12        showDebugOverlay(false);
13}
14
15EntityTextureAtlasViewMode::~EntityTextureAtlasViewMode()
16{
17        // Gametools -- BUG: 06/04/2006
18        //destroyScene();
19}
20
21void EntityTextureAtlasViewMode::setTextureAtlasFolder(Ogre::String textureAtlasFolder)
22{
23        mTextureAtlasFolder = textureAtlasFolder;
24}
25
26void EntityTextureAtlasViewMode::setTextureName(Ogre::String textureName)
27{
28        mTextureName = textureName;
29}
30
31void EntityTextureAtlasViewMode::setTextureAtlasName(Ogre::String textureAtlasName)
32{
33        mTextureAtlasName = textureAtlasName;
34}
35
36void EntityTextureAtlasViewMode::setTextureAtlasSize(unsigned int size)
37{
38        mTextureAtlasSize = size;
39}
40
41void EntityTextureAtlasViewMode::setTextureAtlasNumSamples(unsigned int numSamples)
42{
43        mNumSamples = numSamples;
44}
45
46void EntityTextureAtlasViewMode::setTextureAtlasBitRange(unsigned int bitRange)
47{
48        mBitRange = bitRange;
49}
50
51bool EntityTextureAtlasViewMode::frameStarted(const Ogre::FrameEvent& evt, Ogre::InputReader *inputReader)
52{
53        mWindow->getViewport(0)->setBackgroundColour(Ogre::ColourValue(1.0, 1.0, 1.0, 1.0));
54
55        if (mFrame == 1)
56        {
57                mTextureAtlas->getTextureAtlasSceneNode()->setVisible(false);
58                mTextureAtlas->update();
59                mTextureAtlas->getTextureAtlasSceneNode()->setVisible(true);
60        }
61       
62        if (mFrame == 2)
63        {
64                if (!mTextureAtlasGenerated)
65                {
66                        if (mBitRange == 32)
67                        {
68                                mDestPixelFormat = Ogre::PF_FLOAT32_RGBA;
69                        }
70                        else if (mBitRange == 16)
71                        {
72                                mDestPixelFormat = Ogre::PF_FLOAT16_RGBA;
73                        }
74                        else  // mBitRange == 8
75                        {
76                                mDestPixelFormat = Ogre::PF_BYTE_RGBA;
77                        }
78
79                        mTextureAtlas->update();
80                        //mTextureAtlas->debug();                       
81                        mTextureAtlas->save(mTextureAtlasFolder, mTextureAtlasName, mDestPixelFormat);
82                        mTextureAtlasGenerated = true;
83                }
84        }
85
86        mFrame++;
87
88        return OgreFrameListenerMode::frameStarted(evt, inputReader);   
89}
90
91
92void EntityTextureAtlasViewMode::createScene()
93{
94        IMG::TexturePtr texturePtr ( new IMG::Texture() );
95        texturePtr->bind(mTextureName);
96        Ogre::ColourValue avgColour = texturePtr->getAvgColour();
97        mWindow->getViewport(0)->setBackgroundColour(Ogre::ColourValue(1.0, 1.0, 1.0, 1.0));
98
99        mTextureAtlasNode = mSceneMgr->getRootSceneNode()->createChildSceneNode();
100        mTextureAtlas = IMG::TextureAtlasPtr( new IMG::TextureAtlas() );
101
102        if (mBitRange == 32)
103        {
104                mSrcPixelFormat = Ogre::PF_FLOAT32_RGBA;
105        }
106        else if (mBitRange == 16)
107        {
108                mSrcPixelFormat = Ogre::PF_FLOAT16_RGBA;
109        }
110        else  // mBitRange == 8
111        {
112                mSrcPixelFormat = Ogre::PF_A8R8G8B8;
113        }
114
115        mTextureAtlas->create(mTextureAtlasName, mTextureAtlasSize, mTextureAtlasSize, mSrcPixelFormat, mCamera, avgColour);
116        mTextureAtlas->setTextureAtlasSceneNode(mTextureAtlasNode);
117
118        unsigned int numSubTextures = mNumSamples;                     
119        Ogre::Vector2 maxTexCoords(1.0, 1.0);
120        unsigned int irow = 1;
121        unsigned int icol = 1;
122        unsigned int nrow = Ogre::Math::Sqrt(BBC::Util::nextPowerOf2(numSubTextures));
123        Ogre::Real step = 2.0 / nrow;
124        Ogre::Real degreeStep = 360.0 / numSubTextures;
125        Ogre::Real degree = 0.0;
126
127        Ogre::MaterialPtr materialPtr = Ogre::MaterialManager::getSingleton().create("TextureAtlas" + Ogre::StringConverter::toString(numSubTextures), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);               
128        materialPtr->getTechnique(0)->getPass(0)->setAlphaRejectSettings(Ogre::CMPF_GREATER_EQUAL, 10);
129        materialPtr->getTechnique(0)->getPass(0)->createTextureUnitState("transparent.png");
130        materialPtr->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureFiltering(Ogre::FO_NONE, Ogre::FO_NONE, Ogre::FO_NONE);                     
131        materialPtr->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
132        materialPtr->getTechnique(0)->getPass(0)->setLightingEnabled(false);
133        mTextureAtlas->setMaterial(materialPtr.getPointer());   
134        mTextureAtlas->setCorners(-1.0, 1.0, 1.0, -1.0);       
135
136        for (unsigned int iSubTexture = 0; iSubTexture < numSubTextures; iSubTexture++)
137        {                               
138                IMG::TexturePtr texturePtr = IMG::TexturePtr( new IMG::Texture() );
139                Ogre::MaterialPtr materialPtr = Ogre::MaterialManager::getSingleton().create("TextureAtlas" + Ogre::StringConverter::toString(iSubTexture), Ogre::ResourceGroupManager::DEFAULT_RESOURCE_GROUP_NAME);           
140                //materialPtr->getTechnique(0)->getPass(0)->setAmbient(Ogre::Math::RangeRandom(1.0, 0.0), 1.0, 0.0);
141                //materialPtr->getTechnique(0)->getPass(0)->setDiffuse(1.0, 1.0, 1.0, 1.0);
142                materialPtr->getTechnique(0)->getPass(0)->setLightingEnabled(false);
143                materialPtr->getTechnique(0)->getPass(0)->setAlphaRejectSettings(Ogre::CMPF_GREATER_EQUAL, 10);
144                materialPtr->getTechnique(0)->getPass(0)->createTextureUnitState(mTextureName, 0);
145                materialPtr->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureFiltering(Ogre::FO_NONE, Ogre::FO_NONE, Ogre::FO_NONE);
146                materialPtr->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureAddressingMode(Ogre::TextureUnitState::TAM_CLAMP);
147                materialPtr->getTechnique(0)->getPass(0)->getTextureUnitState(0)->setTextureRotate(Ogre::Radian(Ogre::Degree(degree)));         
148               
149                texturePtr->setMaterial(materialPtr.getPointer());
150                texturePtr->setCorners(maxTexCoords[0] - step, maxTexCoords[1], maxTexCoords[0], maxTexCoords[1] - step);
151       
152                mTextureAtlas->addTexture(texturePtr);
153
154                if (irow == nrow)
155                {
156                        irow = 1;
157                        icol++;
158                        maxTexCoords = Ogre::Vector2(1.0, maxTexCoords[1] - step);
159                }
160                else
161                {
162                        irow++;
163                        maxTexCoords = Ogre::Vector2(maxTexCoords[0] - step, maxTexCoords[1]);
164                }
165
166                degree = degree + degreeStep;
167        }
168}
169
170void EntityTextureAtlasViewMode::destroyScene()
171{
172        mTextureAtlasNode->detachAllObjects();
173}
174
175}
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