void DepthPeelBin::drawFSTP( osg::RenderInfo& renderInfo, osg::State& state, osg::GL2Extensions* ext, PerContextInfo& pci,
GLint& fstpLoc, GLint& texturePercentLoc )
{
TRACEDUMP("DepthPeelBin::drawFSTP");
// Set up the program and uniforms.
state.applyAttribute( _fstpProgram.get() );
if( fstpLoc < 0 )
#if OSG_SUPPORTS_UNIFORM_ID
fstpLoc = state.getUniformLocation( _fstpUniform->getNameID() );
#else
fstpLoc = state.getUniformLocation( _fstpUniform->getName() );
#endif
_fstpUniform->apply( ext, fstpLoc );
if( texturePercentLoc < 0 )
#if OSG_SUPPORTS_UNIFORM_ID
texturePercentLoc = state.getUniformLocation( _texturePercentUniform->getNameID() );
#else
texturePercentLoc = state.getUniformLocation( _texturePercentUniform->getName() );
#endif
_texturePercentUniform->apply( ext, texturePercentLoc );
state.setActiveTextureUnit( s_textureUnit+1 );
glBindTexture( GL_TEXTURE_2D, pci._colorTex );
state.applyAttribute( _fstpBlendFunc.get() );
state.applyMode( GL_BLEND, true );
state.applyMode( GL_DEPTH_TEST, false );
_fstp->draw( renderInfo );
state.setActiveTextureUnit( s_textureUnit+1 );
glBindTexture( GL_TEXTURE_2D, 0 );
}
virtual void apply(osg::State& state) const {
osg::State::UniformMap::const_iterator i = state.getUniformMap().find("oe_isPickCamera");
bool isPickCamera = false;
if (i != state.getUniformMap().end())
{
if (!i->second.uniformVec.empty())
{
i->second.uniformVec.back().first->get(isPickCamera);
}
}
if (isPickCamera)
{
FilterMode minFilter = _min_filter;
FilterMode magFilter = _mag_filter;
DrapingTexture* ncThis = const_cast<DrapingTexture*>(this);
ncThis->_min_filter = NEAREST;
ncThis->_mag_filter = NEAREST;
ncThis->dirtyTextureParameters();
osg::Texture2D::apply(state);
ncThis->_min_filter = minFilter;
ncThis->_mag_filter = magFilter;
ncThis->dirtyTextureParameters();
}
else
{
osg::Texture2D::apply(state);
}
}
virtual void drawImplementation(osg::State& state,const osg::Drawable* drawable) const
{
static osg::TexMat *tm= new osg::TexMat();
osg::Matrix mvm(state.getModelViewMatrix());
osg::Quat q;
q.set(mvm);
// state.getorcre
tm->setMatrix(osg::Matrix::rotate( q.inverse() ));
state.applyTextureAttribute(1,tm);
// drawable->getOrCreateStateSet()->
drawable->drawImplementation(state);
}
virtual void apply(osg::State& state) const
{
osg::Matrix modelViewMatrix = state.getModelViewMatrix();
state.applyModelViewMatrix(state.getInitialViewMatrix());
for (unsigned int i=0; i<mLights.size(); ++i)
{
mLights[i]->setLightNum(i+mIndex);
mLights[i]->apply(state);
}
state.applyModelViewMatrix(modelViewMatrix);
}
unsigned int DepthPeelBin::drawInit( osg::State& state, osgUtil::RenderLeaf*& previous )
{
TRACEDUMP("DepthPeelBin::drawInit");
unsigned int numToPop = (previous ? osgUtil::StateGraph::numToPop(previous->_parent) : 0);
if (numToPop>1) --numToPop;
unsigned int insertStateSetPosition = state.getStateSetStackSize() - numToPop;
if (_stateset.valid())
{
state.insertStateSet(insertStateSetPosition, _stateset.get());
}
return( insertStateSetPosition );
}
void RenderingEffects::applyAllGlobalUniforms( osg::State& state, osg::GL2Extensions* gl2Ext )
{
UniformVector::iterator it;
for( it = _globalUniformVector.begin(); it != _globalUniformVector.end(); it++ )
{
osg::Uniform* uniform = (*it).get();
#if OSG_SUPPORTS_UNIFORM_ID
GLint location = state.getUniformLocation( uniform->getNameID() );
#else
GLint location = state.getUniformLocation( uniform->getName() );
#endif
if( location >= 0 )
uniform->apply( gl2Ext, location );
}
}
void AtomicCounterBufferBinding::readData(osg::State & state, osg::UIntArray & uintArray) const
{
if (!_bufferObject) return;
GLBufferObject* bo = _bufferObject->getOrCreateGLBufferObject( state.getContextID() );
if (!bo) return;
GLint previousID = 0;
glGetIntegerv(GL_ATOMIC_COUNTER_BUFFER_BINDING, &previousID);
if (static_cast<GLuint>(previousID) != bo->getGLObjectID())
bo->_extensions->glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, bo->getGLObjectID());
GLubyte* src = (GLubyte*)bo->_extensions->glMapBuffer(GL_ATOMIC_COUNTER_BUFFER,
GL_READ_ONLY_ARB);
if(src)
{
size_t size = osg::minimum<int>(_size, uintArray.getTotalDataSize());
memcpy((void*) &(uintArray.front()), src+_offset, size);
bo->_extensions->glUnmapBuffer(GL_ATOMIC_COUNTER_BUFFER);
}
if (static_cast<GLuint>(previousID) != bo->getGLObjectID())
bo->_extensions->glBindBuffer(GL_ATOMIC_COUNTER_BUFFER, static_cast<GLuint>(previousID));
}
virtual void dispatch(osg::State& state, const osg::Array* new_array, const osg::GLBufferObject* vbo)
{
VAS_NOTICE<<" TexCoordArrayDispatch::dispatch("<<new_array->getNumElements()<<", vbo="<<std::hex<<vbo<<std::dec<<") unit="<<unit<<std::endl;
state.setClientActiveTextureUnit(unit);
glTexCoordPointer(new_array->getDataSize(), new_array->getDataType(), 0, (const GLvoid *)(vbo->getOffset(new_array->getBufferIndex())));
}
void LODDrawCallback::drawImplementation( osg::State& state, const osg::Drawable* p_drawable ) const
{
assert( _p_lodMesh && "lod mesh data not available!" );
const GLuint groupname = _p_lodMesh->getGroupName();
const GLuint objectname = _p_lodMesh->getObjectName();
const GLuint numpatches = _p_lodMesh->getNumPatches();
// need for LOD adaptation?
if ( _p_lodMesh->adaptLOD() )
{
glodBindObjectXform( objectname, GL_PROJECTION_MATRIX | GL_MODELVIEW_MATRIX );
glodAdaptGroup( groupname );
// reset the adaptation flag after every adaptation
// the adaptation is triggered by update callback
_p_lodMesh->setAdaptLOD( false );
}
// apply drawable's state
state.apply( p_drawable->getStateSet() );
// draw the object patches
for( GLuint patch = 0; patch < numpatches; ++patch )
glodDrawPatch( objectname, patch );
}
virtual void dispatch(osg::State& state, const osg::Array* new_array)
{
VAS_NOTICE<<" TexCoordArrayDispatch::dispatch("<<new_array->getNumElements()<<") unit="<<unit<<std::endl;
state.setClientActiveTextureUnit(unit);
glTexCoordPointer(new_array->getDataSize(), new_array->getDataType(), 0, new_array->getDataPointer());
}
// Return true to activate the shader function.
bool operator()(const osg::State& state)
{
osg::Camera* camera = *state.getGraphicsContext()->getCameras().begin();
if (!camera) return false;
osg::Viewport* viewport = camera->getViewport();
if (!viewport) return false;
return viewport->width() > 1000;
}
void Validator::apply(osg::State& state) const
{
if (!_effect) return;
if (_effect->_tech_selected[state.getContextID()] == 0) {
Effect::Technique_list::iterator i;
int j = 0;
for (i=_effect->_techs.begin(); i!=_effect->_techs.end(); ++i, ++j) {
if ((*i)->validate(state)) {
_effect->_sel_tech[state.getContextID()] = j;
_effect->_tech_selected[state.getContextID()] = 1;
return;
}
}
OSG_WARN << "Warning: osgFX::Validator: could not find any techniques compatible with the current OpenGL context" << std::endl;
}
}
virtual void disable(osg::State& state)
{
VAS_NOTICE<<" TexCoordArrayDispatch::disable() unit="<<unit<<std::endl;
//state.glClientActiveTexture(static_cast<GLenum>(GL_TEXTURE0+unit));
state.setClientActiveTextureUnit(unit);
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
}
void
MaterialGL3::apply(osg::State& state) const
{
#ifdef OSG_GL_FIXED_FUNCTION_AVAILABLE
osg::Material::apply(state);
#else
state.Color(_diffuseFront.r(), _diffuseFront.g(), _diffuseFront.b(), _diffuseFront.a());
#endif
}
std::string DepthPeelBin::createFileName( osg::State& state, int pass, bool depth )
{
unsigned int contextID = state.getContextID();
int frameNumber = state.getFrameStamp()->getFrameNumber();
std::ostringstream ostr;
ostr << std::setfill( '0' );
ostr << "f" << std::setw( 6 ) << frameNumber <<
"_c" << std::setw( 2 ) << contextID << "_";
ostr << "peel_part" << _partitionNumber;
if( pass == -1 )
ostr << "_a";
else
ostr << "_b" << std::setw( 2 ) << pass;
if( depth )
ostr << "_z";
ostr << ".png";
return( ostr.str() );
}
void DepthPeelBin::drawComplete( osg::State& state, unsigned int insertStateSetPosition )
{
TRACEDUMP("DepthPeelBin::drawComplete");
if (_stateset.valid())
{
state.removeStateSet(insertStateSetPosition);
// state.apply();
}
}
bool Technique::validate(osg::State& state) const
{
typedef std::vector<std::string> String_list;
String_list extensions;
getRequiredExtensions(extensions);
for (String_list::const_iterator i=extensions.begin(); i!=extensions.end(); ++i) {
if (!osg::isGLExtensionSupported(state.getContextID(),i->c_str())) return false;
}
return true;
}
void osgParticle::ParticleSystem::ArrayData::dispatchArrays(osg::State& state)
{
osg::VertexArrayState* vas = state.getCurrentVertexArrayState();
vas->lazyDisablingOfVertexAttributes();
if (vertices.valid()) vas->setVertexArray(state, vertices.get());
if (normals.valid()) vas->setNormalArray(state, normals.get());
if (colors.valid()) vas->setColorArray(state, colors.get());
if (texcoords2.valid()) vas->setTexCoordArray(state, 0, texcoords2.get());
if (texcoords3.valid()) vas->setTexCoordArray(state, 0, texcoords3.get());
vas->applyDisablingOfVertexAttributes(state);
}
void Text3D::renderPerGlyph(osg::State & state) const
{
osg::Matrix original_modelview = state.getModelViewMatrix();
// ** for each line, do ...
TextRenderInfo::const_iterator itLine, endLine = _textRenderInfo.end();
for (itLine = _textRenderInfo.begin(); itLine!=endLine; ++itLine)
{
// ** for each glyph in the line, do ...
LineRenderInfo::const_iterator it, end = itLine->end();
for (it = itLine->begin(); it!=end; ++it)
{
osg::ref_ptr<osg::RefMatrix> matrix = new osg::RefMatrix(original_modelview);
matrix->preMultTranslate(osg::Vec3d(it->_position.x(), it->_position.y(), it->_position.z()));
state.applyModelViewMatrix(matrix.get());
// ** apply the vertex array
state.setVertexPointer(it->_glyph->getVertexArray());
// ** render the front face of the glyph
state.Normal(0.0f,0.0f,1.0f);
osg::Geometry::PrimitiveSetList & pslFront = it->_glyph->getFrontPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslFront.begin(), end = pslFront.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
// ** render the wall face of the glyph
state.setNormalPointer(it->_glyph->getNormalArray());
osg::Geometry::PrimitiveSetList & pslWall = it->_glyph->getWallPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslWall.begin(), end=pslWall.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
state.disableNormalPointer();
// ** render the back face of the glyph
state.Normal(0.0f,0.0f,-1.0f);
osg::Geometry::PrimitiveSetList & pslBack = it->_glyph->getBackPrimitiveSetList();
for(osg::Geometry::PrimitiveSetList::const_iterator itr=pslBack.begin(), end=pslBack.end(); itr!=end; ++itr)
{
(*itr)->draw(state, false);
}
}
}
}
void
DepthPeelBin::PerContextInfo::cleanup( const osg::State& state )
{
TRACEDUMP(" PerContextInfo::cleanup");
glDeleteTextures( 3, _depthTex );
_depthTex[ 0 ] = _depthTex[ 1 ] = _depthTex[ 2 ] = 0;
glDeleteTextures( 1, &_colorTex );
_colorTex = 0;
osg::FBOExtensions* fboExt( osg::FBOExtensions::instance( state.getContextID(), true ) );
osgwTools::glBindFramebuffer( fboExt, GL_FRAMEBUFFER_EXT, 0 );
osgwTools::glDeleteFramebuffers( fboExt, 1, &_fbo );
_fbo = 0;
_glDeleteQueries( 1, &_queryID );
_queryID = 0;
_init = false;
}
void Font::Glyph::draw(osg::State& state) const
{
GLuint& globj = _globjList[state.getContextID()];
// call the globj if already set otherwise compile and execute.
if( globj != 0 )
{
glCallList( globj );
}
else
{
globj = glGenLists( 1 );
glNewList( globj, GL_COMPILE_AND_EXECUTE );
glPixelStorei(GL_UNPACK_ALIGNMENT,getPacking());
glDrawPixels(s(), t(),
(GLenum)getPixelFormat(),
(GLenum)getDataType(),
data() );
glEndList();
}
}
void GlyphTexture::apply(osg::State& state) const
{
// get the contextID (user defined ID of 0 upwards) for the
// current OpenGL context.
const unsigned int contextID = state.getContextID();
if (contextID>=_glyphsToSubload.size())
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
// graphics context is beyond the number of glyphsToSubloads, so
// we must now copy the glyph list across, this is a potential
// threading issue though is multiple applies are happening the
// same time on this object - to avoid this condition number of
// graphics contexts should be set before create text.
for(unsigned int i=_glyphsToSubload.size();i<=contextID;++i)
{
GlyphPtrList& glyphPtrs = _glyphsToSubload[i];
for(GlyphRefList::const_iterator itr=_glyphs.begin();
itr!=_glyphs.end();
++itr)
{
glyphPtrs.push_back(itr->get());
}
}
}
const Extensions* extensions = getExtensions(contextID,true);
bool generateMipMapSupported = extensions->isGenerateMipMapSupported();
// get the texture object for the current contextID.
TextureObject* textureObject = getTextureObject(contextID);
bool newTextureObject = (textureObject == 0);
if (newTextureObject)
{
GLint maxTextureSize = 256;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &maxTextureSize);
if (maxTextureSize < getTextureWidth() || maxTextureSize < getTextureHeight())
{
OSG_WARN<<"Warning: osgText::Font texture size of ("<<getTextureWidth()<<", "<<getTextureHeight()<<") too large, unable to create font texture."<<std::endl;
OSG_WARN<<" Maximum supported by hardward by native OpenGL implementation is ("<<maxTextureSize<<","<<maxTextureSize<<")."<<std::endl;
OSG_WARN<<" Please set OSG_MAX_TEXTURE_SIZE lenvironment variable to "<<maxTextureSize<<" and re-run application."<<std::endl;
return;
}
// being bound for the first time, need to allocate the texture
_textureObjectBuffer[contextID] = textureObject = osg::Texture::generateTextureObject(
this, contextID,GL_TEXTURE_2D,1,GL_ALPHA,getTextureWidth(), getTextureHeight(),1,0);
textureObject->bind();
applyTexParameters(GL_TEXTURE_2D,state);
// need to look at generate mip map extension if mip mapping required.
switch(_min_filter)
{
case NEAREST_MIPMAP_NEAREST:
case NEAREST_MIPMAP_LINEAR:
case LINEAR_MIPMAP_NEAREST:
case LINEAR_MIPMAP_LINEAR:
if (generateMipMapSupported)
{
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS,GL_TRUE);
}
else glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, LINEAR);
break;
default:
// not mip mapping so no problems.
break;
}
unsigned int imageDataSize = getTextureHeight()*getTextureWidth();
unsigned char* imageData = new unsigned char[imageDataSize];
for(unsigned int i=0; i<imageDataSize; ++i)
{
imageData[i] = 0;
}
// allocate the texture memory.
glTexImage2D( GL_TEXTURE_2D, 0, GL_ALPHA,
getTextureWidth(), getTextureHeight(), 0,
GL_ALPHA,
GL_UNSIGNED_BYTE,
imageData );
delete [] imageData;
}
else
{
// reuse texture by binding.
textureObject->bind();
if (getTextureParameterDirty(contextID))
{
applyTexParameters(GL_TEXTURE_2D,state);
}
}
static const GLubyte* s_renderer = 0;
static bool s_subloadAllGlyphsTogether = false;
if (!s_renderer)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
s_renderer = glGetString(GL_RENDERER);
OSG_INFO<<"glGetString(GL_RENDERER)=="<<s_renderer<<std::endl;
if (s_renderer && strstr((const char*)s_renderer,"IMPACT")!=0)
{
// we're running on an Octane, so need to work around its
// subloading bugs by loading all at once.
s_subloadAllGlyphsTogether = true;
}
if (s_renderer &&
((strstr((const char*)s_renderer,"Radeon")!=0) ||
(strstr((const char*)s_renderer,"RADEON")!=0) ||
(strstr((const char*)s_renderer,"ALL-IN-WONDER")!=0)))
{
// we're running on an ATI, so need to work around its
// subloading bugs by loading all at once.
s_subloadAllGlyphsTogether = true;
}
if (s_renderer && strstr((const char*)s_renderer,"Sun")!=0)
{
// we're running on an solaris x server, so need to work around its
// subloading bugs by loading all at once.
s_subloadAllGlyphsTogether = true;
}
const char* str = getenv("OSG_TEXT_INCREMENTAL_SUBLOADING");
if (str)
{
s_subloadAllGlyphsTogether = strcmp(str,"OFF")==0 || strcmp(str,"Off")==0 || strcmp(str,"off")==0;
}
}
// now subload the glyphs that are outstanding for this graphics context.
GlyphPtrList& glyphsWereSubloading = _glyphsToSubload[contextID];
if (!glyphsWereSubloading.empty() || newTextureObject)
{
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
if (!s_subloadAllGlyphsTogether)
{
if (newTextureObject)
{
for(GlyphRefList::const_iterator itr=_glyphs.begin();
itr!=_glyphs.end();
++itr)
{
(*itr)->subload();
}
}
else // just subload the new entries.
{
// default way of subloading as required.
//std::cout<<"subloading"<<std::endl;
for(GlyphPtrList::iterator itr=glyphsWereSubloading.begin();
itr!=glyphsWereSubloading.end();
++itr)
{
(*itr)->subload();
}
}
// clear the list since we have now subloaded them.
glyphsWereSubloading.clear();
}
else
{
OSG_INFO<<"osgText::Font loading all glyphs as a single subload."<<std::endl;
// Octane has bugs in OGL driver which mean that subloads smaller
// than 32x32 produce errors, and also cannot handle general alignment,
// so to get round this copy all glyphs into a temporary image and
// then subload the whole lot in one go.
int tsize = getTextureHeight() * getTextureWidth();
unsigned char *local_data = new unsigned char[tsize];
memset( local_data, 0L, tsize);
for(GlyphRefList::const_iterator itr=_glyphs.begin();
itr!=_glyphs.end();
++itr)
{
//(*itr)->subload();
// Rather than subloading to graphics, we'll write the values
// of the glyphs into some intermediate data and subload the
// whole thing at the end
for( int t = 0; t < (*itr)->t(); t++ )
{
for( int s = 0; s < (*itr)->s(); s++ )
{
int sindex = (t*(*itr)->s()+s);
int dindex =
((((*itr)->getTexturePositionY()+t) * getTextureWidth()) +
((*itr)->getTexturePositionX()+s));
const unsigned char *sptr = &(*itr)->data()[sindex];
unsigned char *dptr = &local_data[dindex];
(*dptr) = (*sptr);
}
}
}
// clear the list since we have now subloaded them.
glyphsWereSubloading.clear();
// Subload the image once
glTexSubImage2D( GL_TEXTURE_2D, 0, 0, 0,
getTextureWidth(),
getTextureHeight(),
GL_ALPHA, GL_UNSIGNED_BYTE, local_data );
delete [] local_data;
}
}
else
{
// OSG_INFO << "no need to subload "<<std::endl;
}
// if (generateMipMapTurnedOn)
// {
// glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS,GL_FALSE);
// }
}
void VertexArrayState::setArray(ArrayDispatch* vad, osg::State& state, const osg::Array* new_array)
{
if (new_array)
{
if (!vad->active)
{
vad->active = true;
_activeDispatchers.push_back(vad);
}
if (vad->array==0)
{
GLBufferObject* vbo = isVertexBufferObjectSupported() ? new_array->getOrCreateGLBufferObject(state.getContextID()) : 0;
if (vbo)
{
bindVertexBufferObject(vbo);
vad->enable_and_dispatch(state, new_array, vbo);
}
else
{
unbindVertexBufferObject();
vad->enable_and_dispatch(state, new_array);
}
}
else if (new_array!=vad->array || new_array->getModifiedCount()!=vad->modifiedCount)
{
GLBufferObject* vbo = isVertexBufferObjectSupported() ? new_array->getOrCreateGLBufferObject(state.getContextID()) : 0;
if (vbo)
{
bindVertexBufferObject(vbo);
vad->dispatch(state, new_array, vbo);
}
else
{
unbindVertexBufferObject();
vad->dispatch(state, new_array);
}
}
vad->array = new_array;
vad->modifiedCount = new_array->getModifiedCount();
}
else if (vad->array)
{
disable(vad, state);
}
}
void
MPGeometry::renderPrimitiveSets(osg::State& state,
bool usingVBOs) const
{
// check the map frame to see if it's up to date
if ( _frame.needsSync() )
{
// this lock protects a MapFrame sync when we have multiple DRAW threads.
Threading::ScopedMutexLock exclusive( _frameSyncMutex );
if ( _frame.needsSync() && _frame.sync() ) // always double check
{
// This should only happen is the layer ordering changes;
// If layers are added or removed, the Tile gets rebuilt and
// the point is moot.
std::vector<Layer> reordered;
const ImageLayerVector& layers = _frame.imageLayers();
reordered.reserve( layers.size() );
for( ImageLayerVector::const_iterator i = layers.begin(); i != layers.end(); ++i )
{
std::vector<Layer>::iterator j = std::find( _layers.begin(), _layers.end(), i->get()->getUID() );
if ( j != _layers.end() )
reordered.push_back( *j );
}
_layers.swap( reordered );
}
}
unsigned layersDrawn = 0;
osg::ref_ptr<osg::GL2Extensions> ext = osg::GL2Extensions::Get( state.getContextID(), true );
const osg::Program::PerContextProgram* pcp = state.getLastAppliedProgramObject();
GLint opacityLocation;
GLint uidLocation;
GLint orderLocation;
GLint texMatParentLocation;
// yes, it's possible that the PCP is not set up yet.
// TODO: can we optimize this so we don't need to get uni locations every time?
if ( pcp )
{
opacityLocation = pcp->getUniformLocation( _opacityUniform->getNameID() );
uidLocation = pcp->getUniformLocation( _layerUIDUniform->getNameID() );
orderLocation = pcp->getUniformLocation( _layerOrderUniform->getNameID() );
texMatParentLocation = pcp->getUniformLocation( _texMatParentUniform->getNameID() );
}
// activate the tile coordinate set - same for all layers
state.setTexCoordPointer( _imageUnit+1, _tileCoords.get() );
if ( _layers.size() > 0 )
{
float prev_opacity = -1.0f;
float prev_alphaThreshold = -1.0f;
// first bind any shared layers
// TODO: optimize by pre-storing shared indexes
for(unsigned i=0; i<_layers.size(); ++i)
{
const Layer& layer = _layers[i];
// a "shared" layer binds to a secondary texture unit so that other layers
// can see it and use it.
if ( layer._imageLayer->isShared() )
{
int sharedUnit = layer._imageLayer->shareImageUnit().get();
{
state.setActiveTextureUnit( sharedUnit );
state.setTexCoordPointer( sharedUnit, layer._texCoords.get() );
// bind the texture for this layer to the active share unit.
layer._tex->apply( state );
// no texture LOD blending for shared layers for now. maybe later.
}
}
}
// track the active image unit.
int activeImageUnit = -1;
// interate over all the image layers
for(unsigned i=0; i<_layers.size(); ++i)
{
const Layer& layer = _layers[i];
if ( layer._imageLayer->getVisible() )
{
// activate the visible unit if necessary:
if ( activeImageUnit != _imageUnit )
{
state.setActiveTextureUnit( _imageUnit );
activeImageUnit = _imageUnit;
}
// bind the texture for this layer:
layer._tex->apply( state );
// if we're using a parent texture for blending, activate that now
if ( layer._texParent.valid() )
{
state.setActiveTextureUnit( _imageUnitParent );
activeImageUnit = _imageUnitParent;
layer._texParent->apply( state );
}
// bind the texture coordinates for this layer.
// TODO: can probably optimize this by sharing or using texture matrixes.
// State::setTexCoordPointer does some redundant work under the hood.
state.setTexCoordPointer( _imageUnit, layer._texCoords.get() );
// apply uniform values:
if ( pcp )
{
// apply opacity:
float opacity = layer._imageLayer->getOpacity();
if ( opacity != prev_opacity )
{
_opacityUniform->set( opacity );
_opacityUniform->apply( ext, opacityLocation );
prev_opacity = opacity;
}
// assign the layer UID:
_layerUIDUniform->set( layer._layerID );
_layerUIDUniform->apply( ext, uidLocation );
// assign the layer order:
_layerOrderUniform->set( (int)layersDrawn );
_layerOrderUniform->apply( ext, orderLocation );
// assign the parent texture matrix
if ( layer._texParent.valid() )
{
_texMatParentUniform->set( layer._texMatParent );
_texMatParentUniform->apply( ext, texMatParentLocation );
}
}
// draw the primitive sets.
for(unsigned int primitiveSetNum=0; primitiveSetNum!=_primitives.size(); ++primitiveSetNum)
{
const osg::PrimitiveSet* primitiveset = _primitives[primitiveSetNum].get();
primitiveset->draw(state, usingVBOs);
}
++layersDrawn;
}
}
// prevent texture leakage
glBindTexture( GL_TEXTURE_2D, 0 );
}
// if we didn't draw anything, draw the raw tiles anyway with no texture.
if ( layersDrawn == 0 )
{
_opacityUniform->set( 1.0f );
_opacityUniform->apply( ext, opacityLocation );
_layerUIDUniform->set( (int)-1 ); // indicates a non-textured layer
_layerUIDUniform->apply( ext, uidLocation );
_layerOrderUniform->set( (int)0 );
_layerOrderUniform->apply( ext, orderLocation );
// draw the primitives themselves.
for(unsigned int primitiveSetNum=0; primitiveSetNum!=_primitives.size(); ++primitiveSetNum)
{
const osg::PrimitiveSet* primitiveset = _primitives[primitiveSetNum].get();
primitiveset->draw(state, usingVBOs);
}
}
}
virtual void dispatch(osg::State& state, GLint size, GLenum type, GLsizei stride, const GLvoid *ptr, GLboolean /*normalized*/)
{
state.setClientActiveTextureUnit(unit);
glTexCoordPointer(size, type, stride, ptr);
}
void PositionalStateContainer::draw(osg::State& state,RenderLeaf*& previous, const osg::Matrix* postMultMatrix)
{
if (previous)
{
StateGraph::moveToRootStateGraph(state,previous->_parent);
state.apply();
previous = NULL;
}
// apply the light list.
for(AttrMatrixList::iterator litr=_attrList.begin();
litr!=_attrList.end();
++litr)
{
if (postMultMatrix)
{
if ((*litr).second.valid())
state.applyModelViewMatrix(new osg::RefMatrix( (*((*litr).second)) * (*postMultMatrix)));
else
state.applyModelViewMatrix(new osg::RefMatrix( *postMultMatrix));
}
else
{
state.applyModelViewMatrix((*litr).second.get());
}
// apply the light source.
litr->first->apply(state);
// tell state about.
state.haveAppliedAttribute(litr->first.get());
// set this state as a global default
state.setGlobalDefaultAttribute(litr->first.get());
}
for(TexUnitAttrMatrixListMap::iterator titr=_texAttrListMap.begin();
titr!=_texAttrListMap.end();
++titr)
{
state.setActiveTextureUnit(titr->first);
AttrMatrixList attrList = titr->second;
for(AttrMatrixList::iterator litr=attrList.begin();
litr!=attrList.end();
++litr)
{
if (postMultMatrix)
{
if ((*litr).second.valid())
state.applyModelViewMatrix(new osg::RefMatrix( (*((*litr).second)) * (*postMultMatrix)));
else
state.applyModelViewMatrix(new osg::RefMatrix( *postMultMatrix));
}
else
{
state.applyModelViewMatrix((*litr).second.get());
}
// apply the light source.
litr->first->apply(state);
// tell state about.
state.haveAppliedTextureAttribute(titr->first, litr->first.get());
// set this state as a global default
state.setGlobalDefaultTextureAttribute(titr->first, litr->first.get());
}
}
}
// Return true to activate the shader function.
bool operator()(const osg::State& state)
{
const osg::Viewport* vp = state.getCurrentViewport();
return vp && vp->x() == 0.0;
}
virtual void enable_and_dispatch(osg::State& state, GLint size, GLenum type, GLsizei stride, const GLvoid *ptr, GLboolean /*normalized*/)
{
state.setClientActiveTextureUnit(unit);
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
glTexCoordPointer(size, type, stride, ptr);
}
void
MPGeometry::renderPrimitiveSets(osg::State& state,
bool renderColor,
bool usingVBOs) const
{
// check the map frame to see if it's up to date
if ( _frame.needsSync() )
{
// this lock protects a MapFrame sync when we have multiple DRAW threads.
Threading::ScopedMutexLock exclusive( _frameSyncMutex );
if ( _frame.needsSync() && _frame.sync() ) // always double check
{
// This should only happen is the layer ordering changes;
// If layers are added or removed, the Tile gets rebuilt and
// the point is moot.
std::vector<Layer> reordered;
const ImageLayerVector& layers = _frame.imageLayers();
reordered.reserve( layers.size() );
for( ImageLayerVector::const_iterator i = layers.begin(); i != layers.end(); ++i )
{
std::vector<Layer>::iterator j = std::find( _layers.begin(), _layers.end(), i->get()->getUID() );
if ( j != _layers.end() )
reordered.push_back( *j );
}
_layers.swap( reordered );
}
}
unsigned layersDrawn = 0;
// access the GL extensions interface for the current GC:
const osg::Program::PerContextProgram* pcp = 0L;
#if OSG_MIN_VERSION_REQUIRED(3,3,3)
osg::ref_ptr<osg::GLExtensions> ext;
#else
osg::ref_ptr<osg::GL2Extensions> ext;
#endif
unsigned contextID;
if (_supportsGLSL)
{
contextID = state.getContextID();
#if OSG_MIN_VERSION_REQUIRED(3,3,3)
ext = osg::GLExtensions::Get(contextID, true);
#else
ext = osg::GL2Extensions::Get( contextID, true );
#endif
pcp = state.getLastAppliedProgramObject();
}
// cannot store these in the object since there could be multiple GCs (and multiple
// PerContextPrograms) at large
GLint tileKeyLocation = -1;
GLint birthTimeLocation = -1;
GLint opacityLocation = -1;
GLint uidLocation = -1;
GLint orderLocation = -1;
GLint texMatParentLocation = -1;
GLint minRangeLocation = -1;
GLint maxRangeLocation = -1;
// The PCP can change (especially in a VirtualProgram environment). So we do need to
// requery the uni locations each time unfortunately. TODO: explore optimizations.
if ( pcp )
{
tileKeyLocation = pcp->getUniformLocation( _tileKeyUniformNameID );
birthTimeLocation = pcp->getUniformLocation( _birthTimeUniformNameID );
opacityLocation = pcp->getUniformLocation( _opacityUniformNameID );
uidLocation = pcp->getUniformLocation( _uidUniformNameID );
orderLocation = pcp->getUniformLocation( _orderUniformNameID );
texMatParentLocation = pcp->getUniformLocation( _texMatParentUniformNameID );
minRangeLocation = pcp->getUniformLocation( _minRangeUniformNameID );
maxRangeLocation = pcp->getUniformLocation( _maxRangeUniformNameID );
}
// apply the tilekey uniform once.
if ( tileKeyLocation >= 0 )
{
ext->glUniform4fv( tileKeyLocation, 1, _tileKeyValue.ptr() );
}
// set the "birth time" - i.e. the time this tile last entered the scene in the current GC.
if ( birthTimeLocation >= 0 )
{
PerContextData& pcd = _pcd[contextID];
if ( pcd.birthTime < 0.0f )
{
const osg::FrameStamp* stamp = state.getFrameStamp();
if ( stamp )
{
pcd.birthTime = stamp->getReferenceTime();
}
}
ext->glUniform1f( birthTimeLocation, pcd.birthTime );
}
// activate the tile coordinate set - same for all layers
if ( renderColor )
{
state.setTexCoordPointer( _imageUnit+1, _tileCoords.get() );
}
#ifndef OSG_GLES2_AVAILABLE
if ( renderColor )
{
// emit a default terrain color since we're not binding a color array:
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
}
#endif
// activate the elevation texture if there is one. Same for all layers.
//if ( _elevTex.valid() )
//{
// state.setActiveTextureUnit( 2 );
// state.setTexCoordPointer( 1, _tileCoords.get() ); // necessary?? since we do it above
// _elevTex->apply( state );
// // todo: probably need an elev texture matrix as well. -gw
//}
// track the active image unit.
int activeImageUnit = -1;
// remember whether we applied a parent texture.
bool usedTexParent = false;
if ( _layers.size() > 0 )
{
float prev_opacity = -1.0f;
// first bind any shared layers. We still have to do this even if we are
// in !renderColor mode b/c these textures could be used by vertex shaders
// to alter the geometry.
int sharedLayers = 0;
if ( pcp )
{
for(unsigned i=0; i<_layers.size(); ++i)
{
const Layer& layer = _layers[i];
// a "shared" layer binds to a secondary texture unit so that other layers
// can see it and use it.
if ( layer._imageLayer->isShared() )
{
++sharedLayers;
int sharedUnit = layer._imageLayer->shareImageUnit().get();
{
state.setActiveTextureUnit( sharedUnit );
state.setTexCoordPointer( sharedUnit, layer._texCoords.get() );
// bind the texture for this layer to the active share unit.
layer._tex->apply( state );
// Shared layers need a texture matrix since the terrain engine doesn't
// provide a "current texture coordinate set" uniform (i.e. oe_layer_texc)
GLint texMatLocation = 0;
texMatLocation = pcp->getUniformLocation( layer._texMatUniformID );
if ( texMatLocation >= 0 )
{
ext->glUniformMatrix4fv( texMatLocation, 1, GL_FALSE, layer._texMat.ptr() );
}
}
}
}
}
if (renderColor)
{
// find the first opaque layer, top-down, and start there:
unsigned first = 0;
for(first = _layers.size()-1; first > 0; --first)
{
const Layer& layer = _layers[first];
if (layer._opaque &&
//Color filters can modify the opacity
layer._imageLayer->getColorFilters().empty() &&
layer._imageLayer->getVisible() &&
layer._imageLayer->getOpacity() >= 1.0f)
{
break;
}
}
// interate over all the image layers
for(unsigned i=first; i<_layers.size(); ++i)
{
const Layer& layer = _layers[i];
if ( layer._imageLayer->getVisible() && layer._imageLayer->getOpacity() > 0.0f )
{
// activate the visible unit if necessary:
if ( activeImageUnit != _imageUnit )
{
state.setActiveTextureUnit( _imageUnit );
activeImageUnit = _imageUnit;
}
// bind the texture for this layer:
layer._tex->apply( state );
// in FFP mode, we need to enable the GL mode for texturing:
if ( !pcp ) //!_supportsGLSL)
{
state.applyMode(GL_TEXTURE_2D, true);
}
// if we're using a parent texture for blending, activate that now
if ( texMatParentLocation >= 0 && layer._texParent.valid() )
{
state.setActiveTextureUnit( _imageUnitParent );
activeImageUnit = _imageUnitParent;
layer._texParent->apply( state );
usedTexParent = true;
}
// bind the texture coordinates for this layer.
// TODO: can probably optimize this by sharing or using texture matrixes.
// State::setTexCoordPointer does some redundant work under the hood.
state.setTexCoordPointer( _imageUnit, layer._texCoords.get() );
// apply uniform values:
if ( pcp )
{
// apply opacity:
if ( opacityLocation >= 0 )
{
float opacity = layer._imageLayer->getOpacity();
if ( opacity != prev_opacity )
{
ext->glUniform1f( opacityLocation, (GLfloat)opacity );
prev_opacity = opacity;
}
}
// assign the layer UID:
if ( uidLocation >= 0 )
{
ext->glUniform1i( uidLocation, (GLint)layer._layerID );
}
// assign the layer order:
if ( orderLocation >= 0 )
{
ext->glUniform1i( orderLocation, (GLint)layersDrawn );
}
// assign the parent texture matrix
if ( texMatParentLocation >= 0 && layer._texParent.valid() )
{
ext->glUniformMatrix4fv( texMatParentLocation, 1, GL_FALSE, layer._texMatParent.ptr() );
}
// assign the min range
if ( minRangeLocation >= 0 )
{
ext->glUniform1f( minRangeLocation, layer._imageLayer->getImageLayerOptions().minVisibleRange().get() );
}
// assign the max range
if ( maxRangeLocation >= 0 )
{
ext->glUniform1f( maxRangeLocation, layer._imageLayer->getImageLayerOptions().maxVisibleRange().get() );
}
}
// draw the primitive sets.
for(unsigned int primitiveSetNum=0; primitiveSetNum!=_primitives.size(); ++primitiveSetNum)
{
const osg::PrimitiveSet* primitiveset = _primitives[primitiveSetNum].get();
if ( primitiveset )
{
primitiveset->draw(state, usingVBOs);
}
else
{
OE_WARN << LC << "Strange, MPGeometry had a 0L primset" << std::endl;
}
}
++layersDrawn;
}
}
}
}
// if we didn't draw anything, draw the raw tiles anyway with no texture.
if ( layersDrawn == 0 )
{
if ( pcp )
{
if ( opacityLocation >= 0 )
ext->glUniform1f( opacityLocation, (GLfloat)1.0f );
if ( uidLocation >= 0 )
ext->glUniform1i( uidLocation, (GLint)-1 );
if ( orderLocation >= 0 )
ext->glUniform1i( orderLocation, (GLint)0 );
}
// draw the primitives themselves.
for(unsigned int primitiveSetNum=0; primitiveSetNum!=_primitives.size(); ++primitiveSetNum)
{
const osg::PrimitiveSet* primitiveset = _primitives[primitiveSetNum].get();
primitiveset->draw(state, usingVBOs);
}
}
else // at least one textured layer was drawn:
{
// prevent texture leakage
// TODO: find a way to remove this to speed things up
if ( renderColor )
{
glBindTexture( GL_TEXTURE_2D, 0 );
// if a parent texture was applied, need to disable both.
if ( usedTexParent )
{
state.setActiveTextureUnit(
activeImageUnit != _imageUnitParent ? _imageUnitParent :
_imageUnit );
glBindTexture( GL_TEXTURE_2D, 0);
}
}
}
}
void Shader::PerContextShader::compileShader(osg::State& state)
{
if( ! _needsCompile ) return;
_needsCompile = false;
#if defined(OSG_GLES2_AVAILABLE)
if (_shader->getShaderBinary())
{
GLint numFormats = 0;
glGetIntegerv(GL_NUM_SHADER_BINARY_FORMATS, &numFormats);
if (numFormats>0)
{
std::vector<GLint> formats(numFormats);
glGetIntegerv(GL_SHADER_BINARY_FORMATS, &formats[0]);
for(GLint i=0; i<numFormats; ++i)
{
OSG_NOTICE<<" format="<<formats[i]<<std::endl;
GLenum shaderBinaryFormat = formats[i];
glShaderBinary(1, &_glShaderHandle, shaderBinaryFormat, _shader->getShaderBinary()->getData(), _shader->getShaderBinary()->getSize());
if (glGetError() == GL_NO_ERROR)
{
_isCompiled = true;
return;
}
}
if (_shader->getShaderSource().empty())
{
OSG_WARN<<"Warning: No suitable shader of supported format by GLES driver found in shader binary, unable to compile shader."<<std::endl;
_isCompiled = false;
return;
}
else
{
OSG_NOTICE<<"osg::Shader::compileShader(): No suitable shader of supported format by GLES driver found in shader binary, falling back to shader source."<<std::endl;
}
}
else
{
if (_shader->getShaderSource().empty())
{
OSG_WARN<<"Warning: No shader binary formats supported by GLES driver, unable to compile shader."<<std::endl;
_isCompiled = false;
return;
}
else
{
OSG_NOTICE<<"osg::Shader::compileShader(): No shader binary formats supported by GLES driver, falling back to shader source."<<std::endl;
}
}
}
#endif
std::string source = _shader->getShaderSource();
if (_shader->getType()==osg::Shader::VERTEX && (state.getUseVertexAttributeAliasing() || state.getUseModelViewAndProjectionUniforms()))
{
state.convertVertexShaderSourceToOsgBuiltIns(source);
}
if (osg::getNotifyLevel()>=osg::INFO)
{
std::string sourceWithLineNumbers = insertLineNumbers(source);
OSG_INFO << "\nCompiling " << _shader->getTypename()
<< " source:\n" << sourceWithLineNumbers << std::endl;
}
GLint compiled = GL_FALSE;
const GLchar* sourceText = reinterpret_cast<const GLchar*>(source.c_str());
_extensions->glShaderSource( _glShaderHandle, 1, &sourceText, NULL );
_extensions->glCompileShader( _glShaderHandle );
_extensions->glGetShaderiv( _glShaderHandle, GL_COMPILE_STATUS, &compiled );
_isCompiled = (compiled == GL_TRUE);
if( ! _isCompiled )
{
OSG_WARN << _shader->getTypename() << " glCompileShader \""
<< _shader->getName() << "\" FAILED" << std::endl;
std::string infoLog;
if( getInfoLog(infoLog) )
{
OSG_WARN << _shader->getTypename() << " Shader \""
<< _shader->getName() << "\" infolog:\n" << infoLog << std::endl;
}
}
else
{
std::string infoLog;
if( getInfoLog(infoLog) )
{
OSG_INFO << _shader->getTypename() << " Shader \""
<< _shader->getName() << "\" infolog:\n" << infoLog << std::endl;
}
}
}