OpenSG: OSGDisplayCalibration.cpp Source File

00001 /*---------------------------------------------------------------------------*\
00002  *                                OpenSG                                     *
00003  *                                                                           *
00004  *                                                                           *
00005  *               Copyright (C) 2000-2002 by the OpenSG Forum                 *
00006  *                                                                           *
00007  *                            www.opensg.org                                 *
00008  *                                                                           *
00009  *   contact: dirk@opensg.org, gerrit.voss@vossg.org, jbehr@zgdv.de          *
00010  *                                                                           *
00011 \*---------------------------------------------------------------------------*/
00012 /*---------------------------------------------------------------------------*\
00013  *                                License                                    *
00014  *                                                                           *
00015  * This library is free software; you can redistribute it and/or modify it   *
00016  * under the terms of the GNU Library General Public License as published    *
00017  * by the Free Software Foundation, version 2.                               *
00018  *                                                                           *
00019  * This library is distributed in the hope that it will be useful, but       *
00020  * WITHOUT ANY WARRANTY; without even the implied warranty of                *
00021  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU         *
00022  * Library General Public License for more details.                          *
00023  *                                                                           *
00024  * You should have received a copy of the GNU Library General Public         *
00025  * License along with this library; if not, write to the Free Software       *
00026  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                 *
00027  *                                                                           *
00028 \*---------------------------------------------------------------------------*/
00029 /*---------------------------------------------------------------------------*\
00030  *                                Changes                                    *
00031  *                                                                           *
00032  *                                                                           *
00033  *                                                                           *
00034  *                                                                           *
00035  *                                                                           *
00036  *                                                                           *
00037 \*---------------------------------------------------------------------------*/
00038 
00039 //---------------------------------------------------------------------------
00040 //  Includes
00041 //---------------------------------------------------------------------------
00042 
00043 #include <stdlib.h>
00044 #include <stdio.h>
00045 
00046 #include <OSGConfig.h>
00047 #include <OSGSimpleGeometry.h>
00048 #include <OSGMaterialChunk.h>
00049 
00050 #include "OSGDisplayCalibration.h"
00051 
00052 OSG_USING_NAMESPACE
00053 
00054 /***************************************************************************\
00055  *                            Description                                  *
00056 \***************************************************************************/
00057 
00062 /***************************************************************************\
00063  *                           Class variables                               *
00064 \***************************************************************************/
00065 
00066 /***************************************************************************\
00067  *                           Class methods                                 *
00068 \***************************************************************************/
00069 
00070 void DisplayCalibration::initMethod (void)
00071 {
00072 }
00073 
00074 
00075 /***************************************************************************\
00076  *                           Instance methods                              *
00077 \***************************************************************************/
00078 
00079 /*-------------------------------------------------------------------------*\
00080  -  private                                                                 -
00081 \*-------------------------------------------------------------------------*/
00082 
00083 /*----------------------- constructors & destructors ----------------------*/
00084 
00085 DisplayCalibration::DisplayCalibration(void) :
00086     Inherited(),
00087     _changed(true),
00088     _cmPort(NullFC),
00089     _dsPort(NullFC),
00090     _dsPort2(NullFC)
00091 {
00092 }
00093 
00094 DisplayCalibration::DisplayCalibration(const DisplayCalibration &source) :
00095     Inherited(source),
00096     _changed(true),
00097     _cmPort(NullFC),
00098     _dsPort(NullFC),
00099     _dsPort2(NullFC)
00100 {
00101 }
00102 
00103 DisplayCalibration::~DisplayCalibration(void)
00104 {
00105     if(_cmPort != osg::NullFC) 
00106     {
00107         subRefCP(_cmPort);
00108         subRefCP(_dsPort);
00109         subRefCP(_dsPort2);
00110         subRefCP(_cmRoot);
00111         subRefCP(_dsRoot);
00112         subRefCP(_ds2Root);
00113         subRefCP(_cam);
00114         subRefCP(_dsBack);
00115         subRefCP(_ds2Back);
00116     }
00117 }
00118 
00119 /*----------------------------- class specific ----------------------------*/
00120 
00123 void DisplayCalibration::calibrate(ViewportPtr port,RenderActionBase *ract)
00124 {
00125     WindowPtr window=port->getParent();
00126     if(!getEnabled())
00127         return;
00128 
00129     createCMViewports(port);
00130 
00131     window->addPort(_cmPort);
00132     _cmPort->render(ract);
00133     window->subPort(_cmPort);
00134 
00135     if(getScaleDown() < 1.0f)
00136     {
00137         window->addPort(_dsPort);
00138         _dsPort->render(ract);
00139         window->subPort(_dsPort);
00140         window->addPort(_dsPort2);
00141         _dsPort2->render(ract);
00142         window->subPort(_dsPort2);
00143     }
00144 
00145 }
00146 
00147 void DisplayCalibration::changed(BitVector whichField, UInt32 origin)
00148 {
00149     _changed = true;
00150     Inherited::changed(whichField, origin);
00151 }
00152 
00153 void DisplayCalibration::dump(      UInt32    , 
00154                          const BitVector ) const
00155 {
00156     SLOG << "Dump DisplayCalibration NI" << std::endl;
00157 }
00158 
00159 void DisplayCalibration::createCMViewports(ViewportPtr port)
00160 {
00161     WindowPtr window=port->getParent();
00162 
00163     // create color management structures
00164     if(_cmPort != osg::NullFC &&
00165        !_changed &&
00166        _vpLeft == port->getPixelLeft() &&
00167        _vpRight == port->getPixelRight() &&
00168        _vpBottom == port->getPixelBottom() &&
00169        _vpTop == port->getPixelTop())
00170         return;
00171 
00172     if(getScaleDown()>1.0)
00173         setScaleDown(1.0);
00174 
00175     _changed = false;
00176     _vpLeft = port->getPixelLeft();
00177     _vpBottom = port->getPixelBottom();
00178     _vpRight = port->getPixelRight();
00179     _vpTop = port->getPixelTop();
00180 
00181     // reset
00182     if(_cmPort != osg::NullFC) {
00183         subRefCP(_cmPort);
00184         subRefCP(_dsPort);
00185         subRefCP(_dsPort2);
00186         subRefCP(_cmRoot);
00187         subRefCP(_dsRoot);
00188         subRefCP(_ds2Root);
00189         subRefCP(_cam);
00190         subRefCP(_dsBack);
00191         subRefCP(_ds2Back);
00192     }
00193 
00194     Matrix m;
00195     ImagePtr img = Image::create();
00196     beginEditCP(img);
00197     img->set(GL_RGB,1,1);
00198 
00199     endEditCP(img);
00200 
00201     int extension;
00202     extension = osg::Window::registerExtension("GL_ARB_fragment_program");
00203     if(window->hasExtension(extension))
00204     {
00205         SINFO << "Use fragment program for color crrection" << std::endl;
00206         _useFragmentProgram = true;
00207     }
00208     else
00209     {
00210         SINFO << "Use reg combiner for color crrection" << std::endl;
00211         _useFragmentProgram = false;
00212     }
00213     extension = Window::registerExtension("GL_ARB_texture_non_power_of_two" );
00214     if(window->hasExtension(extension))
00215         _nonPowerOfTwo = true;
00216     else
00217         _nonPowerOfTwo = false;
00218 
00219     TextureChunkPtr tex = TextureChunk::create();    
00220 
00221     if(_useFragmentProgram)
00222     {
00223         // Step 1: The texture from the GrabBackground
00224 
00225         beginEditCP(tex);
00226         tex->setImage(img);
00227         tex->setMinFilter(GL_NEAREST);
00228         tex->setScale(false);
00229         tex->setEnvMode(GL_REPLACE);
00230         endEditCP  (tex);
00231 
00232         // Step 2: The textures for the initial gamma mapping
00233         
00234         // Texture Chunks for gamma mapping
00235         
00236         UChar8 rgammadata[] =
00237             {  0, 80, 160, 255 };
00238         
00239         _rgammaimg = Image::create();
00240         beginEditCP(_rgammaimg);
00241         _rgammaimg->set(Image::OSG_L_PF,4,1,1,1,1,0,rgammadata);
00242         endEditCP(_rgammaimg);
00243         
00244         _rgammachunk = TextureChunk::create();    
00245         beginEditCP(_rgammachunk);
00246         _rgammachunk->setImage(_rgammaimg);
00247         _rgammachunk->setMinFilter(GL_LINEAR);
00248         _rgammachunk->setMagFilter(GL_LINEAR);
00249         _rgammachunk->setWrapS(GL_CLAMP_TO_EDGE);
00250         _rgammachunk->setWrapT(GL_CLAMP_TO_EDGE);
00251         endEditCP  (_rgammachunk);
00252         
00253         UChar8 ggammadata[] =
00254             {  0, 80, 160, 255 };
00255         
00256         _ggammaimg = Image::create();
00257         beginEditCP(_ggammaimg);
00258         _ggammaimg->set(Image::OSG_L_PF,4,1,1,1,1,0,ggammadata);
00259         endEditCP(_ggammaimg);
00260         
00261         _ggammachunk = TextureChunk::create();    
00262         beginEditCP(_ggammachunk);
00263         _ggammachunk->setImage(_ggammaimg);
00264         _ggammachunk->setMinFilter(GL_LINEAR);
00265         _ggammachunk->setMagFilter(GL_LINEAR);
00266         _ggammachunk->setWrapS(GL_CLAMP_TO_EDGE);
00267         _ggammachunk->setWrapT(GL_CLAMP_TO_EDGE);
00268         endEditCP  (_ggammachunk);
00269 
00270         UChar8 bgammadata[] =
00271             {  0, 80, 160, 255 };
00272         
00273         _bgammaimg = Image::create();
00274         beginEditCP(_bgammaimg);
00275         _bgammaimg->set(Image::OSG_L_PF,4,1,1,1,1,0,bgammadata);
00276         endEditCP(_bgammaimg);
00277     
00278         _bgammachunk = TextureChunk::create();    
00279         beginEditCP(_bgammachunk);
00280         _bgammachunk->setImage(_bgammaimg);
00281         _bgammachunk->setMinFilter(GL_LINEAR);
00282         _bgammachunk->setMagFilter(GL_LINEAR);
00283         _bgammachunk->setWrapS(GL_CLAMP_TO_EDGE);
00284         _bgammachunk->setWrapT(GL_CLAMP_TO_EDGE);
00285         endEditCP  (_bgammachunk);
00286 
00287         // set gamma table
00288         for(int j=0; j < 3; ++j)
00289         {
00290             ImagePtr img;
00291             switch(j)
00292             {
00293                 case 0: img = _rgammaimg; break;
00294                 case 1: img = _ggammaimg; break;
00295                 case 2: img = _bgammaimg; break;
00296             }
00297             beginEditCP(img);
00298             if(getGammaRamp().size() == 0)
00299             {
00300                 img->set(Image::OSG_L_PF, 256, 1);
00301                 UInt8 *data = img->getData();
00302                 for(int i=0; i < 256; i++)
00303                 {
00304                     data[i] = (UInt8)(pow(i/255.0,1.0)*255);
00305                 }
00306             }
00307             else
00308             {
00309                 img->set(Image::OSG_L_PF, getGammaRamp().size(), 1);
00310                 UInt8 *data = img->getData();
00311                 for(int i=0; i < getGammaRamp().size(); i++)
00312                 {
00313                     data[i] = (UInt8)(getGammaRamp()[i][j] * 255);
00314                 }
00315             }
00316             endEditCP(img);
00317         }
00318 
00319         // Step 3: FragmentProgram Chunk for color matrix multiply
00320         m.setValue(1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1);     
00321         
00322         _fragProgram = FragmentProgramChunk::create();
00323         std::string prog(
00324             "!!ARBfp1.0\n"
00325             "PARAM mat0 = program.local[1];\n"
00326             "PARAM mat1 = program.local[2];\n"
00327             "PARAM mat2 = program.local[3];\n"
00328             "PARAM mat3 = program.local[4];\n"
00329             "PARAM gamma = program.local[5];\n"
00330             "TEMP source;\n"
00331             "TEMP target;\n"
00332             "\n"
00333             "# get the grabbed texture's color\n"
00334             "TEX source, fragment.texcoord[0], texture[0], 2D;\n"
00335             "\n"
00336             "# gamma map it\n"
00337             "POW source.r, source.r, gamma.r;\n"
00338             "POW source.g, source.g, gamma.r;\n"
00339             "POW source.b, source.b, gamma.r;\n"
00340             "\n"
00341             "# do the matrix transform\n"
00342             "DP4 target.x, mat0, source;\n"
00343             "DP4 target.y, mat1, source;\n"
00344             "DP4 target.z, mat2, source;\n"
00345             "\n"
00346             "# map it through the target gamma\n"
00347             "TEX target.r, target.r, texture[1], 1D;\n"
00348             "TEX target.g, target.g, texture[2], 1D;\n"
00349             "TEX target.b, target.b, texture[3], 1D;\n"
00350             "\n"
00351             "# mov it to the output\n"
00352             "MOV result.color, target;\n"
00353             "END\n");
00354         
00355         beginEditCP(_fragProgram);
00356         _fragProgram->setProgram(prog);
00357         endEditCP(_fragProgram);
00358     }   
00359     else
00360     {
00361         // Step 1: The texture from the GrabBackground
00362 
00363         beginEditCP(tex);
00364         tex->setImage(img);
00365         tex->setWrapS(GL_CLAMP_TO_EDGE);
00366         tex->setWrapT(GL_CLAMP_TO_EDGE);
00367 
00368         tex->setMinFilter(GL_LINEAR);
00369         tex->setMagFilter(GL_LINEAR);
00370 
00371 //        tex->setMinFilter(GL_NEAREST);
00372         tex->setScale(false);
00373         tex->setEnvMode(GL_REPLACE);
00374         tex->setShaderOperation(GL_TEXTURE_2D);
00375         tex->setInternalFormat(GL_RGB8);
00376         endEditCP  (tex);
00377 
00378         // Step 2: The textures for the initial gamma mapping
00379   
00380         // Texture Chunks for gamma mapping
00381 
00382         UChar8 _argammadata[] =
00383             {  0,  0,  0,    0,  0,  0,    0,  0,  0,    0,  0,  0,    
00384                80,  0,  0,   80,  0,  0,   80,  0,  0,   80,  0,  0,    
00385                160,  0,  0,  160,  0,  0,  160,  0,  0,  160,  0,  0,    
00386                255,  0,  0,  255,  0,  0,  255,  0,  0,  255,  0,  0  
00387             };
00388     
00389         _argammaimg = Image::create();
00390         beginEditCP(_argammaimg);
00391         _argammaimg->set(GL_RGB,4,4,1,1,1,0,_argammadata);
00392         endEditCP(_argammaimg);
00393     
00394         _argammachunk = TextureChunk::create();    
00395         beginEditCP(_argammachunk);
00396         _argammachunk->setImage(_argammaimg);
00397         _argammachunk->setMinFilter(GL_NEAREST);
00398         _argammachunk->setMagFilter(GL_NEAREST);
00399         _argammachunk->setWrapS(GL_CLAMP_TO_EDGE);
00400         _argammachunk->setWrapT(GL_CLAMP_TO_EDGE);
00401         _argammachunk->setShaderOperation(GL_DEPENDENT_AR_TEXTURE_2D_NV);
00402         _argammachunk->setShaderInput    (GL_TEXTURE0_ARB);
00403         _argammachunk->setInternalFormat(GL_RGB8);
00404         endEditCP  (_argammachunk);
00405 
00406         UChar8 _gbgammadata[] =
00407             {  0,  0,  0,     0, 80,  0,     0,160,  0,    0,255,  0,
00408                0,  0, 80,     0, 80, 80,     0,160, 80,    0,255, 80,
00409                0,  0,160,     0, 80,160,     0,160,160,    0,255,160,
00410                0,  0,255,     0, 80,255,     0,160,255,    0,255,255
00411             };
00412     
00413         _gbgammaimg = Image::create();
00414         beginEditCP(_gbgammaimg);
00415         _gbgammaimg->set(GL_RGB,4,4,1,1,1,0,_gbgammadata);
00416         endEditCP(_gbgammaimg);
00417     
00418         _gbgammachunk = TextureChunk::create();    
00419         beginEditCP(_gbgammachunk);
00420         _gbgammachunk->setImage(_gbgammaimg);
00421         _gbgammachunk->setMinFilter(GL_NEAREST);
00422         _gbgammachunk->setMagFilter(GL_NEAREST);
00423         _gbgammachunk->setWrapS(GL_CLAMP_TO_EDGE);
00424         _gbgammachunk->setWrapT(GL_CLAMP_TO_EDGE);
00425         _gbgammachunk->setShaderOperation(GL_DEPENDENT_GB_TEXTURE_2D_NV);
00426         _gbgammachunk->setShaderInput    (GL_TEXTURE0_ARB);
00427         _gbgammachunk->setInternalFormat(GL_RGB8);
00428         endEditCP  (_gbgammachunk);
00429 
00430         // Step 3: RegisterCombiners Chunk for color matrix multiply
00431 
00432         m.setValue(1,0,0,0, 0,1,0,0, 0,0,1,0, 0,0,0,1);     
00433         m.setValue(1,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,1);
00434         
00435         _regCombiner = RegisterCombinersChunk::create();
00436     }
00437 
00438     // putting it all together
00439         
00440     ChunkMaterialPtr mat = ChunkMaterial::create();
00441     beginEditCP(mat);
00442     mat->addChunk(tex);
00443     if(_useFragmentProgram)
00444     {
00445         mat->addChunk(_rgammachunk);
00446         mat->addChunk(_ggammachunk);
00447         mat->addChunk(_bgammachunk);
00448         mat->addChunk(_fragProgram);
00449     }
00450     else
00451     {
00452         mat->addChunk(_argammachunk);
00453         mat->addChunk(_gbgammachunk);
00454         mat->addChunk(_regCombiner);
00455     }
00456     endEditCP(mat);
00457 
00458     // add the second viewport
00459      
00460     GeoPTypesUI8Ptr  types = GeoPTypesUI8::create();
00461     GeoPLengthsPtr lens = GeoPLengthsUI32::create();    
00462     beginEditCP(types);
00463     types->addValue(GL_QUADS);
00464     endEditCP(types);
00465 
00466     beginEditCP(lens);
00467     lens->addValue(4);
00468     endEditCP(lens);
00469     
00470     GeoPositions3fPtr pos = GeoPositions3f::create();
00471     beginEditCP(pos);
00472     pos->addValue(Pnt3f(-1, -1, -0.5));
00473     pos->addValue(Pnt3f( 1, -1, -0.5));
00474     pos->addValue(Pnt3f( 1,  1, -0.5));
00475     pos->addValue(Pnt3f(-1,  1, -0.5));
00476     endEditCP(pos);
00477     _positions=pos;
00478     
00479     _texcoords = GeoTexCoords2f::create();
00480     beginEditCP(_texcoords);
00481     _texcoords->addValue(Vec2f(0,0));
00482     _texcoords->addValue(Vec2f(1,0));
00483     _texcoords->addValue(Vec2f(1,1));
00484     _texcoords->addValue(Vec2f(0,1));
00485     endEditCP(_texcoords);
00486    
00487     GeometryPtr geo = Geometry::create();
00488     beginEditCP(geo);
00489     geo->setMaterial(mat);
00490     geo->setPositions(pos);
00491     geo->setTypes(types);
00492     geo->setTexCoords(_texcoords);
00493     geo->setLengths(lens);
00494     endEditCP  (geo);
00495     
00496     NodePtr cube = Node::create();
00497     beginEditCP(cube);
00498     cube->setCore(geo);
00499     endEditCP(cube);
00500    
00501     ComponentTransformPtr trans = ComponentTransform::create();
00502     beginEditCP(trans);
00503     trans->setTranslation(Vec3f(getScaleDown()-1, getScaleDown()-1, 0));
00504     trans->setScale(Vec3f(getScaleDown(), getScaleDown(), 1.0));
00505     endEditCP(trans);
00506     
00507     _cmRoot = Node::create();
00508     addRefCP(_cmRoot);
00509     beginEditCP(_cmRoot);
00510     _cmRoot->setCore(trans);
00511     _cmRoot->addChild(cube);
00512     endEditCP(_cmRoot);
00513  
00514     GroupPtr group = Group::create();
00515     NodePtr gr = Node::create();
00516     beginEditCP(gr);
00517     gr->setCore(group);
00518     gr->addChild(_cmRoot);
00519     endEditCP(gr);
00520    
00521     _cam = MatrixCamera::create();
00522     addRefCP(_cam);
00523     beginEditCP(_cam);
00524     _cam->setNear(0.1);
00525     _cam->setFar(10);
00526     _cam->setModelviewMatrix(Matrix::identity());
00527     _cam->setProjectionMatrix(Matrix::identity());   
00528     endEditCP(_cam);
00529     
00530     // create a dummy geometry
00531     _dsRoot = makePlane(1, 1, 1, 1);
00532     addRefCP(_dsRoot);
00533     beginEditCP(_dsRoot);
00534       _dsRoot->setActive(false);
00535     endEditCP(_dsRoot);
00536     
00537     // Add the grab background
00538     
00539     _cmBack = TextureGrabBackground::create();
00540     addRefCP(_cmBack);
00541     
00542     beginEditCP(_cmBack);
00543         _cmBack->setTexture(tex);
00544         _cmBack->setColor(Color3f(0,0,0));
00545     endEditCP(_cmBack);
00546     
00547     _cmPort = Viewport::create();
00548     addRefCP(_cmPort);
00549 
00550     beginEditCP(_cmPort);
00551         _cmPort->setCamera(_cam);
00552         _cmPort->setRoot(_cmRoot);
00553         _cmPort->setBackground(_cmBack);
00554         _cmPort->setLeft(port->getLeft());
00555         _cmPort->setRight(port->getRight());
00556         _cmPort->setBottom(port->getBottom());
00557         _cmPort->setTop(port->getTop());
00558     endEditCP(_cmPort);
00559 
00560     // create down scale viewport
00561 
00562     ImagePtr img2 = Image::create();
00563     beginEditCP(img2);
00564         img2->set(GL_RGB,1,1);
00565     endEditCP(img2);
00566     
00567     TextureChunkPtr tex2 = TextureChunk::create();
00568     beginEditCP(tex2);
00569         tex2->setImage(img2);
00570         tex2->setMinFilter(GL_NEAREST);
00571         tex2->setMagFilter(GL_NEAREST);
00572         tex2->setScale(false);
00573         tex2->setEnvMode(GL_REPLACE);
00574     endEditCP(tex2);
00575     
00576     _dsBack = TextureGrabBackground::create();
00577     addRefCP(_dsBack);
00578     beginEditCP(_dsBack);
00579         _dsBack->setTexture(tex2);
00580         _dsBack->setColor(Color3f(1,0,0));
00581     endEditCP(_dsBack);
00582     
00583     // create the down scale viewport
00584     _dsPort = Viewport::create();
00585     addRefCP(_dsPort);
00586     beginEditCP(_dsPort);
00587         _dsPort->setCamera(_cam);
00588         _dsPort->setRoot(_dsRoot);
00589         _dsPort->setBackground(_dsBack);
00590         _dsPort->setLeft(port->getLeft());
00591         _dsPort->setRight(port->getRight());
00592         _dsPort->setBottom(port->getBottom());
00593         _dsPort->setTop(port->getTop());
00594     endEditCP(_dsPort);
00595 
00596     // vp2
00597     
00598     _ds2Back = SolidBackground::create();
00599     addRefCP(_ds2Back);
00600     beginEditCP(_ds2Back);
00601         _ds2Back->setColor(Color3f(1,0,0));
00602     endEditCP(_ds2Back);
00603 
00604     ChunkMaterialPtr mat2 = ChunkMaterial::create();
00605     MaterialChunkPtr matc = MaterialChunk::create();
00606     
00607     beginEditCP(mat2);
00608         mat2->addChunk(tex2);
00609     endEditCP(mat2);
00610 
00611     GeometryPtr geo2 = Geometry::create();
00612 
00613     GeoPLengthsPtr lens2 = GeoPLengthsUI32::create();    
00614     beginEditCP(lens2);
00615     lens->addValue(4);
00616     endEditCP(lens2);
00617 
00618     _positionsScale = GeoPositions3f::create();
00619     beginEditCP(_positionsScale);
00620     _positionsScale->addValue(Pnt3f(-1, -1, -0.5));
00621     _positionsScale->addValue(Pnt3f( 1, -1, -0.5));
00622     _positionsScale->addValue(Pnt3f( 1,  1, -0.5));
00623     _positionsScale->addValue(Pnt3f(-1,  1, -0.5));
00624     endEditCP(_positionsScale);
00625     
00626     _texcoordsScale = GeoTexCoords2f::create();
00627     beginEditCP(_texcoordsScale);
00628     _texcoordsScale->addValue(Vec2f(0,0));
00629     _texcoordsScale->addValue(Vec2f(1,0));
00630     _texcoordsScale->addValue(Vec2f(1,1));
00631     _texcoordsScale->addValue(Vec2f(0,1));
00632     endEditCP(_texcoordsScale);
00633 
00634     beginEditCP(geo2);
00635     geo2->setMaterial(mat2);
00636     geo2->setPositions(_positionsScale);
00637     geo2->setTypes(types);
00638     geo2->setTexCoords(_texcoordsScale);
00639     geo2->setLengths(lens2);
00640     endEditCP(geo2);
00641  
00642     _ds2Root = Node::create();
00643     beginEditCP(_ds2Root);
00644     _ds2Root->setCore(geo2);
00645     endEditCP(_ds2Root);
00646 
00647     _dsPort2 = Viewport::create();
00648     addRefCP(_dsPort2);
00649     beginEditCP(_dsPort2);
00650         _dsPort2->setCamera(_cam);
00651         _dsPort2->setRoot(_ds2Root);
00652         _dsPort2->setBackground(_ds2Back);
00653         _dsPort2->setLeft(0);
00654         _dsPort2->setRight(1);
00655         _dsPort2->setBottom(0);
00656         _dsPort2->setTop(1);
00657     endEditCP(_dsPort2);
00658 
00659     updateMatrix();
00660     updateGamma();
00661 
00662 
00663     // ---------------------------------------------------------------
00664     // set projection grid
00665     // ---------------------------------------------------------------
00666 
00667     UInt32 x,y;
00668     Int32 left=0,top=1,bottom=0,right=1;
00669     left   = port->getPixelLeft();
00670     right  = port->getPixelRight();
00671     bottom = port->getPixelBottom();
00672     top    = port->getPixelTop();
00673 
00674     Real32 h=top-bottom+1;
00675     Real32 w=right-left+1;
00676     Real32 
00677         tw = osgnextpower2((UInt32)w), 
00678         th = osgnextpower2((UInt32)h);
00679 
00680     beginEditCP(_texcoords);
00681     beginEditCP(_positions);
00682     _positions->clear();
00683     _texcoords->clear();
00684 
00685     if(getGrid().size() == 0 ||
00686        getGrid().size() != getGridWidth() * getGridHeight() ||
00687        getGridWidth() < 2 ||
00688        getGridHeight() < 2)
00689     {
00690         if(!_nonPowerOfTwo)
00691         {
00692             _texcoords->addValue(Vec2f(0,0));
00693             _texcoords->addValue(Vec2f(w/tw,0));
00694             _texcoords->addValue(Vec2f(w/tw,h/th));
00695             _texcoords->addValue(Vec2f(0,h/th));
00696         }
00697         else
00698         {
00699             _texcoords->addValue(Vec2f(0,0));
00700             _texcoords->addValue(Vec2f(1,0));
00701             _texcoords->addValue(Vec2f(1,1));
00702             _texcoords->addValue(Vec2f(0,1));
00703         }
00704         _positions->addValue(Pnt3f(-1, -1, -0.5));
00705         _positions->addValue(Pnt3f( 1, -1, -0.5));
00706         _positions->addValue(Pnt3f( 1,  1, -0.5));
00707         _positions->addValue(Pnt3f(-1,  1, -0.5));
00708     }
00709     else
00710     {
00711         UInt32 i;
00712         bool   absolute=false;
00713         for(i=0;i<getGrid().size();++i)
00714             if(getGrid()[i][0]>1 ||
00715                getGrid()[i][1]>1)
00716             {
00717                 absolute=true;
00718                 break;
00719             }
00720         for(int y=0 ; y<getGridHeight()-1 ; ++y)
00721         {
00722             for(int x=0 ; x<getGridWidth()-1 ; ++x)
00723             {
00724                 // calculate texture coordinates
00725                 Vec2f tex[4];
00726                 tex[0] = Vec2f(  x,  y);
00727                 tex[1] = Vec2f(x+1,  y);
00728                 tex[2] = Vec2f(x+1,y+1);
00729                 tex[3] = Vec2f(  x,y+1);
00730 
00731                 // get position
00732                 Vec2f pos[4];
00733                 pos[0] = getGrid()[y*getGridWidth()+x];
00734                 pos[1] = getGrid()[y*getGridWidth()+x+1];
00735                 pos[2] = getGrid()[(y+1)*getGridWidth()+x+1];
00736                 pos[3] = getGrid()[(y+1)*getGridWidth()+x];
00737                 for(i=0 ; i<4 ; ++i)
00738                 {
00739                     // scale to 0 - 1
00740                     tex[i][0] /= getGridWidth() - 1;
00741                     tex[i][1] /= getGridHeight() - 1;
00742                     // scale to ^2 texture size
00743                     if(!_nonPowerOfTwo)
00744                     {
00745                         tex[i][0] *= w/(float)tw;
00746                         tex[i][1] *= h/(float)th;
00747                     }
00748                     if(absolute) 
00749                     {
00750                         pos[i][0] /= (w-1);
00751                         pos[i][1] /= (h-1);
00752                     }
00753                     _texcoords->addValue(tex[i]);
00754                     Pnt3f p(pos[i][0],pos[i][1],0);
00755                     _positions->addValue(p*2-Vec3f(1,1,1));
00756                 }
00757             }
00758         }
00759     }
00760     endEditCP(_texcoords);
00761 
00762     beginEditCP(lens);
00763     lens->clear();
00764     lens->addValue(_positions->getSize());
00765     endEditCP(lens);
00766 
00767     endEditCP(_positions);
00768 
00769     // ---------------------------------------------------------------
00770     // set downscale params
00771     // ---------------------------------------------------------------
00772 
00773     UInt32 w2 = UInt32(((right - left) + 1) * getScaleDown());
00774     UInt32 h2 = UInt32(((top - bottom) + 1) * getScaleDown());
00775     UInt32 lefts = Int32(left * getScaleDown());
00776     UInt32 rights = w2 - 1;
00777     UInt32 bottoms = Int32(bottom * getScaleDown());
00778     UInt32 tops = h2 - 1;
00779     
00780     _dsPort->setSize(lefts,bottoms,rights,tops);
00781     _dsPort2->setSize(left,bottom,right,top);
00782                     
00783     Real32 h3= tops - bottoms + 1;
00784     Real32 w3= rights - lefts + 1;
00785     Real32 tw2 = osgnextpower2((UInt32) w2);
00786     Real32 th2 = osgnextpower2((UInt32) h2);
00787     
00788     beginEditCP(_texcoordsScale);
00789     _texcoordsScale->clear();
00790     _texcoordsScale->addValue(Vec2f(0,0));
00791     _texcoordsScale->addValue(Vec2f(w3/tw2,0));
00792     _texcoordsScale->addValue(Vec2f(w3/tw2,h3/th2));
00793     _texcoordsScale->addValue(Vec2f(0,h3/th2));
00794     endEditCP(_texcoordsScale);
00795     
00796     beginEditCP(_positionsScale);
00797     _positionsScale->clear();
00798     _positionsScale->addValue(Pnt3f(-1, -1, -0.5));
00799     _positionsScale->addValue(Pnt3f( 1, -1, -0.5));
00800     _positionsScale->addValue(Pnt3f( 1,  1, -0.5));
00801     _positionsScale->addValue(Pnt3f(-1,  1, -0.5));
00802     endEditCP(_positionsScale);
00803 
00804 }
00805 
00806 void DisplayCalibration::updateGamma()
00807 {
00808     UInt16 x,y;
00809     UInt8 *data;
00810     UInt32 res = getGammaRamp().size();
00811 
00812     if(res == 0)
00813         res = 256;
00814 
00815     if(_useFragmentProgram)
00816     {
00817         beginEditCP(_fragProgram, FragmentProgramChunk::ParamValuesFieldMask);
00818 
00819         _fragProgram->setParameter(5, Vec4f(getGamma(),getGamma(),getGamma(),0));   
00820 
00821         endEditCP(_fragProgram, FragmentProgramChunk::ParamValuesFieldMask);
00822     }
00823     else
00824     {
00825         _argammaimg->set(GL_RGB,res,res);
00826 
00827         beginEditCP(_argammaimg);
00828         data = _argammaimg->getData();
00829     
00830         memset(data, 0, res * res * 3);
00831     
00832         for(y = 0; y < res; ++y)
00833         {
00834             UInt8 v = (int)(pow(y/(Real32)(res-1),getGamma())*255+0.5);
00835             for(x = 0; x < res; ++x)
00836             {
00837                 *data++ = v;
00838                 *data++ = 0;
00839                 *data++ = 0;           
00840             }
00841         }
00842         endEditCP(_argammaimg);
00843 
00844         beginEditCP(_argammachunk);
00845         _argammachunk->setImage(_argammaimg);
00846         endEditCP(_argammachunk);
00847 
00848         _gbgammaimg->set(GL_RGB,res,res);
00849 
00850         beginEditCP(_gbgammaimg);
00851         data = _gbgammaimg->getData();
00852     
00853         memset(data, 0, res * res * 3);
00854     
00855         for(y = 0; y < res; ++y)
00856         {
00857             UInt8 vy = (int)(pow(y/(Real32)(res-1),getGamma())*255+0.5);
00858             for(x = 0; x < res; ++x)
00859             {
00860                 UInt8 vx = (int)(pow(x/(Real32)(res-1),getGamma())*255+0.5);
00861                 *data++ = 0;
00862                 *data++ = vx;
00863                 *data++ = vy;           
00864             }
00865         }
00866         endEditCP(_gbgammaimg);
00867 
00868         beginEditCP(_gbgammachunk);
00869         _gbgammachunk->setImage(_gbgammaimg);
00870         endEditCP(_gbgammachunk);
00871     }
00872 }
00873 
00874 void DisplayCalibration::updateMatrix()
00875 {
00876     if(_useFragmentProgram)
00877     {
00878         beginEditCP(_fragProgram, FragmentProgramChunk::ParamValuesFieldMask);
00879     
00880         _fragProgram->setParameter(1, getColorMatrix()[0]);
00881         _fragProgram->setParameter(2, getColorMatrix()[1]);
00882         _fragProgram->setParameter(3, getColorMatrix()[2]);
00883         _fragProgram->setParameter(4, getColorMatrix()[3]);
00884     
00885         endEditCP(_fragProgram, FragmentProgramChunk::ParamValuesFieldMask);
00886 
00887     }
00888     else
00889     {
00890 #if 0
00891         Color4f 
00892             m1(m[0][0]/2+.5,m[0][1]/2+.5,m[0][2]/2+.5,0),
00893             m2(m[1][0]/2+.5,m[1][1]/2+.5,m[1][2]/2+.5,0),
00894             m3(m[2][0]/2+.5,m[2][1]/2+.5,m[2][2]/2+.5,0),
00895             m4(m[3][0]/2+.5,m[3][1]/2+.5,m[3][2]/2+.5,0);
00896 #endif
00897         Color4f 
00898             m1(getColorMatrix()[0][0]/2+.5,
00899             getColorMatrix()[0][1]/2+.5,
00900             getColorMatrix()[0][2]/2+.5,0),
00901             m2(getColorMatrix()[1][0]/2+.5,
00902             getColorMatrix()[1][1]/2+.5,
00903             getColorMatrix()[1][2]/2+.5,0),
00904             m3(getColorMatrix()[2][0]/2+.5,
00905             getColorMatrix()[2][1]/2+.5,
00906             getColorMatrix()[2][2]/2+.5,0),
00907             m4(getColorMatrix()[3][0]/2+.5,
00908             getColorMatrix()[3][1]/2+.5,
00909             getColorMatrix()[3][2]/2+.5,0);
00910     
00911         Color4f selectR(1,0,0,0), selectG(0,1,0,0), selectB(0,0,1,0);
00912 
00913         UInt16 ncomb = 0;
00914     
00915         beginEditCP(_regCombiner);
00916 
00917         _regCombiner->setCombinerRGB(ncomb,
00918                             GL_TEXTURE1_ARB,       GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable A
00919                             GL_ZERO,               GL_UNSIGNED_INVERT_NV,   GL_RGB, // variable B
00920                             GL_TEXTURE2_ARB,       GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable C
00921                             GL_ZERO,               GL_UNSIGNED_INVERT_NV,   GL_RGB, // variable D
00922                             GL_DISCARD_NV, GL_DISCARD_NV, GL_TEXTURE0_ARB,   // ABout, CDout, Sumout
00923                             GL_NONE, GL_NONE,                            // scale, bias
00924                             GL_FALSE, GL_FALSE, GL_FALSE );                // ABdot, CDdot, muxSum
00925 
00926         ncomb++;
00927 
00928         // first combiner: spare0 = dot(col, m1), spare1 = dot(col,m2)      
00929         
00930         _regCombiner->setCombinerColors(ncomb, m1, m2);
00931 
00932         _regCombiner->setCombinerRGB(
00933             ncomb,
00934             GL_TEXTURE0_ARB,       GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable A
00935             GL_CONSTANT_COLOR0_NV, GL_EXPAND_NORMAL_NV,     GL_RGB, // variable B
00936             GL_TEXTURE0_ARB,       GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable C
00937             GL_CONSTANT_COLOR1_NV, GL_EXPAND_NORMAL_NV,     GL_RGB, // variable D
00938             GL_SPARE0_NV, GL_SPARE1_NV, GL_DISCARD_NV,   // ABout, CDout, Sumout
00939             GL_NONE, GL_NONE,                            // scale, bias
00940             GL_TRUE, GL_TRUE, GL_FALSE );                // ABdot, CDdot, muxSum
00941         
00942         ncomb++;
00943     
00944         // second combiner: tex0 = dot(col, m3), spare0 = spare0.r   
00945     
00946         _regCombiner->setCombinerColors(ncomb, m3, selectR);
00947 
00948         _regCombiner->setCombinerRGB(ncomb,
00949                             GL_TEXTURE0_ARB,       GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable A
00950                             GL_CONSTANT_COLOR0_NV, GL_EXPAND_NORMAL_NV,     GL_RGB, // variable B
00951                             GL_SPARE0_NV,          GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable C
00952                             GL_CONSTANT_COLOR1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable D
00953                             GL_TEXTURE3_ARB, GL_SPARE0_NV, GL_DISCARD_NV, // ABout, CDout, Sumout
00954                             GL_NONE, GL_NONE,                             // scale, bias
00955                             GL_TRUE, GL_FALSE, GL_FALSE );                 // ABdot, CDdot, muxSum
00956 
00957         ncomb++;
00958     
00959         // final combiner 
00960     
00961         _regCombiner->setColor0(selectG);
00962         _regCombiner->setColor1(selectB);
00963     
00964         // RGB = D + AB + (1-A)C
00965         _regCombiner->setFinalCombiner( 
00966             GL_CONSTANT_COLOR0_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable A
00967             GL_SPARE1_NV,          GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable B
00968             GL_E_TIMES_F_NV,       GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable C
00969             GL_SPARE0_NV,          GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable D
00970             GL_CONSTANT_COLOR1_NV, GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable E
00971             GL_TEXTURE3_ARB,       GL_UNSIGNED_IDENTITY_NV, GL_RGB, // variable F
00972             GL_PRIMARY_COLOR_NV,   GL_UNSIGNED_IDENTITY_NV, GL_ALPHA );// variable G
00973 
00974         endEditCP(_regCombiner);
00975     }
00976 }
00977 
00978 /*------------------------------------------------------------------------*/
00979 /*                              cvs id's                                  */
00980 
00981 #ifdef OSG_SGI_CC
00982 #pragma set woff 1174
00983 #endif
00984 
00985 #ifdef OSG_LINUX_ICC
00986 #pragma warning( disable : 177 )
00987 #endif
00988 
00989 namespace
00990 {
00991     static Char8 cvsid_cpp       [] = "@(#)$Id: $";
00992     static Char8 cvsid_hpp       [] = OSGDISPLAYCALIBRATIONBASE_HEADER_CVSID;
00993     static Char8 cvsid_inl       [] = OSGDISPLAYCALIBRATIONBASE_INLINE_CVSID;
00994 
00995     static Char8 cvsid_fields_hpp[] = OSGDISPLAYCALIBRATIONFIELDS_HEADER_CVSID;
00996 }
00997 
00998 #ifdef __sgi
00999 #pragma reset woff 1174
01000 #endif
01001