2270 lines
78 KiB
C++
2270 lines
78 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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#include <osg/GLExtensions>
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#include <osg/Image>
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#include <osg/Texture>
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#include <osg/State>
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#include <osg/Notify>
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#include <osg/GLU>
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#include <osg/Timer>
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#include <osg/ApplicationUsage>
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#include <osg/FrameBufferObject>
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#include <osg/TextureRectangle>
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#include <osg/Texture1D>
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#include <OpenThreads/ScopedLock>
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#include <OpenThreads/Mutex>
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#ifndef GL_TEXTURE_WRAP_R
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#define GL_TEXTURE_WRAP_R 0x8072
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#endif
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#ifndef GL_TEXTURE_MAX_LEVEL
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#define GL_TEXTURE_MAX_LEVEL 0x813D
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#endif
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#ifndef GL_UNPACK_CLIENT_STORAGE_APPLE
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#define GL_UNPACK_CLIENT_STORAGE_APPLE 0x85B2
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#endif
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#ifndef GL_APPLE_vertex_array_range
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#define GL_VERTEX_ARRAY_RANGE_APPLE 0x851D
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#define GL_VERTEX_ARRAY_RANGE_LENGTH_APPLE 0x851E
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#define GL_VERTEX_ARRAY_STORAGE_HINT_APPLE 0x851F
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#define GL_VERTEX_ARRAY_RANGE_POINTER_APPLE 0x8521
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#define GL_STORAGE_CACHED_APPLE 0x85BE
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#define GL_STORAGE_SHARED_APPLE 0x85BF
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#endif
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// #define DO_TIMING
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// #define CHECK_CONSISTENCY
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namespace osg {
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ApplicationUsageProxy Texture_e0(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_MAX_TEXTURE_SIZE","Set the maximum size of textures.");
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typedef buffered_value< ref_ptr<Texture::Extensions> > BufferedExtensions;
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static BufferedExtensions s_extensions;
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unsigned int s_minimumNumberOfTextureObjectsToRetainInCache = 0;
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void Texture::setMinimumNumberOfTextureObjectsToRetainInCache(unsigned int minimum)
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{
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s_minimumNumberOfTextureObjectsToRetainInCache = minimum;
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}
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unsigned int Texture::getMinimumNumberOfTextureObjectsToRetainInCache()
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{
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return s_minimumNumberOfTextureObjectsToRetainInCache;
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}
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Texture::TextureObject::~TextureObject()
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{
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// OSG_NOTICE<<"Texture::TextureObject::~TextureObject() "<<this<<std::endl;
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}
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void Texture::TextureObject::bind()
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{
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glBindTexture( _profile._target, _id);
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if (_set) _set->moveToBack(this);
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}
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void Texture::TextureObject::setAllocated(GLint numMipmapLevels,
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GLenum internalFormat,
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GLsizei width,
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GLsizei height,
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GLsizei depth,
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GLint border)
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{
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_allocated=true;
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if (!match(_profile._target,numMipmapLevels,internalFormat,width,height,depth,border))
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{
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_profile.set(numMipmapLevels,internalFormat,width,height,depth,border);
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if (_set)
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{
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_set->moveToSet(this, _set->getParent()->getTextureObjectSet(_profile));
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}
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}
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}
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void Texture::TextureProfile::computeSize()
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{
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unsigned int numBitsPerTexel = 32;
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switch(_internalFormat)
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{
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case(1): numBitsPerTexel = 8; break;
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case(GL_ALPHA): numBitsPerTexel = 8; break;
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case(GL_LUMINANCE): numBitsPerTexel = 8; break;
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case(GL_INTENSITY): numBitsPerTexel = 8; break;
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case(GL_LUMINANCE_ALPHA): numBitsPerTexel = 16; break;
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case(2): numBitsPerTexel = 16; break;
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case(GL_RGB): numBitsPerTexel = 24; break;
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case(GL_BGR): numBitsPerTexel = 24; break;
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case(3): numBitsPerTexel = 24; break;
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case(GL_RGBA): numBitsPerTexel = 32; break;
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case(4): numBitsPerTexel = 32; break;
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case(GL_COMPRESSED_ALPHA_ARB): numBitsPerTexel = 4; break;
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case(GL_COMPRESSED_INTENSITY_ARB): numBitsPerTexel = 4; break;
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case(GL_COMPRESSED_LUMINANCE_ALPHA_ARB): numBitsPerTexel = 4; break;
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case(GL_COMPRESSED_RGB_S3TC_DXT1_EXT): numBitsPerTexel = 4; break;
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case(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT): numBitsPerTexel = 4; break;
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case(GL_COMPRESSED_RGB_ARB): numBitsPerTexel = 8; break;
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case(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT): numBitsPerTexel = 8; break;
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case(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT): numBitsPerTexel = 8; break;
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}
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_size = (unsigned int)(ceil(double(_width * _height * _depth * numBitsPerTexel)/8.0));
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if (_numMipmapLevels>1)
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{
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unsigned int mipmapSize = _size / 4;
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for(GLint i=0; i<_numMipmapLevels && mipmapSize!=0; ++i)
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{
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_size += mipmapSize;
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mipmapSize /= 4;
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}
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}
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// OSG_NOTICE<<"TO ("<<_width<<", "<<_height<<", "<<_depth<<") size="<<_size<<" numBitsPerTexel="<<numBitsPerTexel<<std::endl;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////////////////
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//
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// New texture object manager
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//
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Texture::TextureObjectSet::TextureObjectSet(TextureObjectManager* parent, const TextureProfile& profile):
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_parent(parent),
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_contextID(parent->getContextID()),
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_profile(profile),
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_numOfTextureObjects(0),
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_head(0),
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_tail(0)
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{
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}
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Texture::TextureObjectSet::~TextureObjectSet()
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{
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#if 0
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OSG_NOTICE<<"TextureObjectSet::~TextureObjectSet(), _numOfTextureObjects="<<_numOfTextureObjects<<std::endl;
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OSG_NOTICE<<" _orphanedTextureObjects = "<<_orphanedTextureObjects.size()<<std::endl;
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OSG_NOTICE<<" _head = "<<_head<<std::endl;
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OSG_NOTICE<<" _tail = "<<_tail<<std::endl;
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#endif
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}
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bool Texture::TextureObjectSet::checkConsistency() const
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{
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#ifndef CHECK_CONSISTENCY
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return true;
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#else
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// OSG_NOTICE<<"TextureObjectSet::checkConsistency()"<<std::endl;
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// check consistency of linked list.
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unsigned int numInList = 0;
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Texture::TextureObject* to = _head;
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while(to!=0)
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{
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++numInList;
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if (to->_next)
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{
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if ((to->_next)->_previous != to)
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{
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OSG_NOTICE<<"Texture::TextureObjectSet::checkConsistency() : Error (to->_next)->_previous != to "<<std::endl;
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return false;
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}
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}
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else
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{
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if (_tail != to)
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{
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OSG_NOTICE<<"Texture::TextureObjectSet::checkConsistency() : Error _tail != to"<<std::endl;
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return false;
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}
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}
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to = to->_next;
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}
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unsigned int totalNumber = numInList + _orphanedTextureObjects.size();
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if (totalNumber != _numOfTextureObjects)
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{
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OSG_NOTICE<<"Error numInList + _orphanedTextureObjects.size() != _numOfTextureObjects"<<std::endl;
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OSG_NOTICE<<" numInList = "<<numInList<<std::endl;
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OSG_NOTICE<<" _orphanedTextureObjects.size() = "<<_orphanedTextureObjects.size()<<std::endl;
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OSG_NOTICE<<" _pendingOrphanedTextureObjects.size() = "<<_pendingOrphanedTextureObjects.size()<<std::endl;
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OSG_NOTICE<<" _numOfTextureObjects = "<<_numOfTextureObjects<<std::endl;
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return false;
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}
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return true;
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#endif
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}
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void Texture::TextureObjectSet::handlePendingOrphandedTextureObjects()
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{
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// OSG_NOTICE<<"handlePendingOrphandedTextureObjects()"<<_pendingOrphanedTextureObjects.size()<<std::endl;
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if (_pendingOrphanedTextureObjects.empty()) return;
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unsigned int numOrphaned = _pendingOrphanedTextureObjects.size();
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for(TextureObjectList::iterator itr = _pendingOrphanedTextureObjects.begin();
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itr != _pendingOrphanedTextureObjects.end();
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++itr)
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{
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TextureObject* to = itr->get();
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_orphanedTextureObjects.push_back(to);
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remove(to);
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#if 0
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OSG_NOTICE<<" HPOTO after _head = "<<_head<<std::endl;
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OSG_NOTICE<<" HPOTO after _tail = "<<_tail<<std::endl;
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OSG_NOTICE<<" HPOTO after to->_previous = "<<to->_previous<<std::endl;
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OSG_NOTICE<<" HPOTO after to->_next = "<<to->_next<<std::endl;
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#endif
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}
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// update the TextureObjectManager's running total of active + orphaned TextureObjects
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_parent->getNumberOrphanedTextureObjects() += numOrphaned;
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_parent->getNumberActiveTextureObjects() -= numOrphaned;
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_pendingOrphanedTextureObjects.clear();
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checkConsistency();
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}
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void Texture::TextureObjectSet::deleteAllTextureObjects()
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{
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// OSG_NOTICE<<"Texture::TextureObjectSet::deleteAllTextureObjects()"<<std::endl;
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// move the pending orhpans into the orhans list
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handlePendingOrphandedTextureObjects();
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// detect all the active texture objects from their Textures
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TextureObject* to = _head;
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while(to!=0)
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{
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ref_ptr<TextureObject> glto = to;
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to = to->_next;
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_orphanedTextureObjects.push_back(glto.get());
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remove(glto.get());
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ref_ptr<Texture> original_texture = glto->getTexture();
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if (original_texture.valid())
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{
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original_texture->setTextureObject(_contextID,0);
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}
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}
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// now do the actual delete.
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flushAllDeletedTextureObjects();
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// OSG_NOTICE<<"done GLBufferObjectSet::deleteAllGLBufferObjects()"<<std::endl;
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}
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void Texture::TextureObjectSet::discardAllTextureObjects()
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{
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// OSG_NOTICE<<"Texture::TextureObjectSet::discardAllTextureObjects()."<<std::endl;
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TextureObject* to = _head;
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while(to!=0)
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{
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ref_ptr<TextureObject> glto = to;
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to = to->_next;
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ref_ptr<Texture> original_texture = glto->getTexture();
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if (original_texture.valid())
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{
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original_texture->setTextureObject(_contextID,0);
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}
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}
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// the linked list should now be empty
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_head = 0;
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_tail = 0;
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_pendingOrphanedTextureObjects.clear();
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_orphanedTextureObjects.clear();
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unsigned int numDeleted = _numOfTextureObjects;
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_numOfTextureObjects = 0;
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// update the TextureObjectManager's running total of current pool size
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_parent->getCurrTexturePoolSize() -= numDeleted*_profile._size;
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_parent->getNumberOrphanedTextureObjects() -= numDeleted;
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_parent->getNumberDeleted() += numDeleted;
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}
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void Texture::TextureObjectSet::flushAllDeletedTextureObjects()
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{
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// OSG_NOTICE<<"Texture::TextureObjectSet::flushAllDeletedTextureObjects()"<<std::endl;
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for(TextureObjectList::iterator itr = _orphanedTextureObjects.begin();
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itr != _orphanedTextureObjects.end();
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++itr)
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{
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GLuint id = (*itr)->id();
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// OSG_NOTICE<<" Deleting textureobject ptr="<<itr->get()<<" id="<<id<<std::endl;
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glDeleteTextures( 1L, &id);
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}
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unsigned int numDeleted = _orphanedTextureObjects.size();
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_numOfTextureObjects -= numDeleted;
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// update the TextureObjectManager's running total of current pool size
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_parent->getCurrTexturePoolSize() -= numDeleted*_profile._size;
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_parent->getNumberOrphanedTextureObjects() -= numDeleted;
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_parent->getNumberDeleted() += numDeleted;
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_orphanedTextureObjects.clear();
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}
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void Texture::TextureObjectSet::discardAllDeletedTextureObjects()
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{
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// OSG_NOTICE<<"Texture::TextureObjectSet::discardAllDeletedTextureObjects()"<<std::endl;
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// clean up the pending orphans.
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handlePendingOrphandedTextureObjects();
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unsigned int numDiscarded = _orphanedTextureObjects.size();
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_numOfTextureObjects -= numDiscarded;
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// update the TextureObjectManager's running total of current pool size
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_parent->setCurrTexturePoolSize( _parent->getCurrTexturePoolSize() - numDiscarded*_profile._size );
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// update the number of active and orphaned TextureOjects
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_parent->getNumberOrphanedTextureObjects() -= 1;
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_parent->getNumberActiveTextureObjects() += 1;
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_parent->getNumberDeleted() += 1;
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// just clear the list as there is nothing else we can do with them when discarding them
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_orphanedTextureObjects.clear();
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}
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void Texture::TextureObjectSet::flushDeletedTextureObjects(double currentTime, double& availableTime)
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{
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// OSG_NOTICE<<"Texture::TextureObjectSet::flushDeletedTextureObjects(..)"<<std::endl;
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// if nothing to delete return
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if (_orphanedTextureObjects.empty()) return;
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// if no time available don't try to flush objects.
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if (availableTime<=0.0) return;
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// if we don't have too many orphaned texture objects then don't bother deleting them, as we can potentially reuse them later.
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if (_parent->getNumberOrphanedTextureObjects()<=s_minimumNumberOfTextureObjectsToRetainInCache) return;
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unsigned int numDeleted = 0;
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unsigned int maxNumObjectsToDelete = _parent->getNumberOrphanedTextureObjects()-s_minimumNumberOfTextureObjectsToRetainInCache;
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if (maxNumObjectsToDelete>4) maxNumObjectsToDelete = 4;
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ElapsedTime timer;
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TextureObjectList::iterator itr = _orphanedTextureObjects.begin();
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for(;
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itr != _orphanedTextureObjects.end() && timer.elapsedTime()<availableTime && numDeleted<maxNumObjectsToDelete;
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++itr)
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{
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GLuint id = (*itr)->id();
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// OSG_NOTICE<<" Deleting textureobject ptr="<<itr->get()<<" id="<<id<<std::endl;
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glDeleteTextures( 1L, &id);
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++numDeleted;
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}
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// OSG_NOTICE<<"Size before = "<<_orphanedTextureObjects.size();
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_orphanedTextureObjects.erase(_orphanedTextureObjects.begin(), itr);
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// OSG_NOTICE<<", after = "<<_orphanedTextureObjects.size()<<" numDeleted = "<<numDeleted<<std::endl;
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// update the number of TO's in this TextureObjectSet
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_numOfTextureObjects -= numDeleted;
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_parent->setCurrTexturePoolSize( _parent->getCurrTexturePoolSize() - numDeleted*_profile._size );
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// update the number of active and orphaned TextureOjects
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_parent->getNumberOrphanedTextureObjects() -= numDeleted;
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_parent->getNumberActiveTextureObjects() += numDeleted;
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_parent->getNumberDeleted() += numDeleted;
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availableTime -= timer.elapsedTime();
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}
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bool Texture::TextureObjectSet::makeSpace(unsigned int& size)
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{
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if (!_orphanedTextureObjects.empty())
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{
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unsigned int sizeAvailable = _orphanedTextureObjects.size() * _profile._size;
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if (size>sizeAvailable) size -= sizeAvailable;
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else size = 0;
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flushAllDeletedTextureObjects();
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}
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return size==0;
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}
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Texture::TextureObject* Texture::TextureObjectSet::takeFromOrphans(Texture* texture)
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{
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// take front of orphaned list.
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ref_ptr<TextureObject> to = _orphanedTextureObjects.front();
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// remove from orphan list.
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_orphanedTextureObjects.pop_front();
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// assign to new texture
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to->setTexture(texture);
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// update the number of active and orphaned TextureOjects
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_parent->getNumberOrphanedTextureObjects() -= 1;
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_parent->getNumberActiveTextureObjects() += 1;
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// place at back of active list
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addToBack(to.get());
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// OSG_INFO<<"Reusing orhpahned TextureObject, _numOfTextureObjects="<<_numOfTextureObjects<<std::endl;
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return to.release();
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}
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Texture::TextureObject* Texture::TextureObjectSet::takeOrGenerate(Texture* texture)
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{
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// see if we can recyle TextureObject from the orphane list
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if (!_pendingOrphanedTextureObjects.empty())
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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handlePendingOrphandedTextureObjects();
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return takeFromOrphans(texture);
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}
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else if (!_orphanedTextureObjects.empty())
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{
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return takeFromOrphans(texture);
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}
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unsigned int minFrameNumber = _parent->getFrameNumber();
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// see if we can reuse TextureObject by taking the least recently used active TextureObject
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if ((_parent->getMaxTexturePoolSize()!=0) &&
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(!_parent->hasSpace(_profile._size)) &&
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(_numOfTextureObjects>1) &&
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(_head != 0) &&
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(_head->_frameLastUsed<minFrameNumber))
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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ref_ptr<TextureObject> to = _head;
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ref_ptr<Texture> original_texture = to->getTexture();
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if (original_texture.valid())
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{
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original_texture->setTextureObject(_contextID,0);
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OSG_INFO<<"TextureObjectSet="<<this<<": Reusing an active TextureObject "<<to.get()<<" _numOfTextureObjects="<<_numOfTextureObjects<<" width="<<_profile._width<<" height="<<_profile._height<<std::endl;
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}
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else
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{
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OSG_INFO<<"Reusing a recently orphaned active TextureObject "<<to.get()<<std::endl;
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}
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moveToBack(to.get());
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// assign to new texture
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to->setTexture(texture);
|
|
|
|
return to.release();
|
|
}
|
|
|
|
//
|
|
// no TextureObjects available to recycle so have to create one from scratch
|
|
//
|
|
GLuint id;
|
|
glGenTextures( 1L, &id );
|
|
|
|
TextureObject* to = new Texture::TextureObject(const_cast<Texture*>(texture),id,_profile);
|
|
to->_set = this;
|
|
++_numOfTextureObjects;
|
|
|
|
// update the current texture pool size
|
|
_parent->getCurrTexturePoolSize() += _profile._size;
|
|
_parent->getNumberActiveTextureObjects() += 1;
|
|
|
|
addToBack(to);
|
|
|
|
OSG_INFO<<"Created new TextureObject, _numOfTextureObjects "<<_numOfTextureObjects<<std::endl;
|
|
|
|
return to;
|
|
}
|
|
|
|
void Texture::TextureObjectSet::moveToBack(Texture::TextureObject* to)
|
|
{
|
|
#if 0
|
|
OSG_NOTICE<<"TextureObjectSet::moveToBack("<<to<<")"<<std::endl;
|
|
OSG_NOTICE<<" before _head = "<<_head<<std::endl;
|
|
OSG_NOTICE<<" before _tail = "<<_tail<<std::endl;
|
|
OSG_NOTICE<<" before to->_previous = "<<to->_previous<<std::endl;
|
|
OSG_NOTICE<<" before to->_next = "<<to->_next<<std::endl;
|
|
#endif
|
|
|
|
to->_frameLastUsed = _parent->getFrameNumber();
|
|
|
|
// nothing to do if we are already tail
|
|
if (to==_tail) return;
|
|
|
|
// if no tail exists then assign 'to' as tail and head
|
|
if (_tail==0)
|
|
{
|
|
OSG_NOTICE<<"Error ***************** Should not get here !!!!!!!!!"<<std::endl;
|
|
_head = to;
|
|
_tail = to;
|
|
return;
|
|
}
|
|
|
|
if (to->_next==0)
|
|
{
|
|
OSG_NOTICE<<"Error ***************** Should not get here either !!!!!!!!!"<<std::endl;
|
|
return;
|
|
}
|
|
|
|
|
|
if (to->_previous)
|
|
{
|
|
(to->_previous)->_next = to->_next;
|
|
}
|
|
else
|
|
{
|
|
// 'to' is the head, so moving it to the back will mean we need a new head
|
|
if (to->_next)
|
|
{
|
|
_head = to->_next;
|
|
}
|
|
}
|
|
|
|
(to->_next)->_previous = to->_previous;
|
|
|
|
_tail->_next = to;
|
|
|
|
to->_previous = _tail;
|
|
to->_next = 0;
|
|
|
|
_tail = to;
|
|
|
|
#if 0
|
|
OSG_NOTICE<<" m2B after _head = "<<_head<<std::endl;
|
|
OSG_NOTICE<<" m2B after _tail = "<<_tail<<std::endl;
|
|
OSG_NOTICE<<" m2B after to->_previous = "<<to->_previous<<std::endl;
|
|
OSG_NOTICE<<" m2B after to->_next = "<<to->_next<<std::endl;
|
|
#endif
|
|
checkConsistency();
|
|
}
|
|
|
|
void Texture::TextureObjectSet::addToBack(Texture::TextureObject* to)
|
|
{
|
|
#if 0
|
|
OSG_NOTICE<<"TextureObjectSet::addToBack("<<to<<")"<<std::endl;
|
|
OSG_NOTICE<<" before _head = "<<_head<<std::endl;
|
|
OSG_NOTICE<<" before _tail = "<<_tail<<std::endl;
|
|
OSG_NOTICE<<" before to->_previous = "<<to->_previous<<std::endl;
|
|
OSG_NOTICE<<" before to->_next = "<<to->_next<<std::endl;
|
|
#endif
|
|
|
|
if (to->_previous !=0 || to->_next !=0)
|
|
{
|
|
moveToBack(to);
|
|
}
|
|
else
|
|
{
|
|
to->_frameLastUsed = _parent->getFrameNumber();
|
|
|
|
if (_tail) _tail->_next = to;
|
|
to->_previous = _tail;
|
|
|
|
if (!_head) _head = to;
|
|
_tail = to;
|
|
}
|
|
#if 0
|
|
OSG_NOTICE<<" a2B after _head = "<<_head<<std::endl;
|
|
OSG_NOTICE<<" a2B after _tail = "<<_tail<<std::endl;
|
|
OSG_NOTICE<<" a2B after to->_previous = "<<to->_previous<<std::endl;
|
|
OSG_NOTICE<<" a2B after to->_next = "<<to->_next<<std::endl;
|
|
#endif
|
|
checkConsistency();
|
|
}
|
|
|
|
void Texture::TextureObjectSet::orphan(Texture::TextureObject* to)
|
|
{
|
|
// OSG_NOTICE<<"TextureObjectSet::orphan("<<to<<")"<<std::endl;
|
|
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
|
|
|
|
// disconnect from original texture
|
|
to->setTexture(0);
|
|
|
|
// add orphan 'to' to the pending list of orphans, these will then be
|
|
// handled in the handlePendingOrphandedTextureObjects() where the TO's
|
|
// will be removed from the active list, and then placed in the orhpanTextureObject
|
|
// list. This double buffered approach to handling orphaned TO's is used
|
|
// to avoid having to mutex the process of appling active TO's.
|
|
_pendingOrphanedTextureObjects.push_back(to);
|
|
|
|
#if 0
|
|
OSG_NOTICE<<"TextureObjectSet::orphan("<<to<<") _pendingOrphanedTextureObjects.size()="<<_pendingOrphanedTextureObjects.size()<<std::endl;
|
|
OSG_NOTICE<<" _orphanedTextureObjects.size()="<<_orphanedTextureObjects.size()<<std::endl;
|
|
#endif
|
|
}
|
|
|
|
void Texture::TextureObjectSet::remove(Texture::TextureObject* to)
|
|
{
|
|
if (to->_previous!=0)
|
|
{
|
|
(to->_previous)->_next = to->_next;
|
|
}
|
|
else
|
|
{
|
|
// 'to' was head so assign _head to the next in list
|
|
_head = to->_next;
|
|
}
|
|
|
|
if (to->_next!=0)
|
|
{
|
|
(to->_next)->_previous = to->_previous;
|
|
}
|
|
else
|
|
{
|
|
// 'to' was tail so assing tail to the previous in list
|
|
_tail = to->_previous;
|
|
}
|
|
|
|
// reset the 'to' list pointers as it's no longer in the active list.
|
|
to->_next = 0;
|
|
to->_previous = 0;
|
|
}
|
|
|
|
void Texture::TextureObjectSet::moveToSet(TextureObject* to, TextureObjectSet* set)
|
|
{
|
|
if (set==this) return;
|
|
if (!set) return;
|
|
|
|
// remove 'to' from original set
|
|
--_numOfTextureObjects;
|
|
remove(to);
|
|
|
|
// register 'to' with new set.
|
|
to->_set = set;
|
|
++set->_numOfTextureObjects;
|
|
set->addToBack(to);
|
|
}
|
|
|
|
|
|
Texture::TextureObjectManager::TextureObjectManager(unsigned int contextID):
|
|
_contextID(contextID),
|
|
_numActiveTextureObjects(0),
|
|
_numOrphanedTextureObjects(0),
|
|
_currTexturePoolSize(0),
|
|
_maxTexturePoolSize(0),
|
|
_frameNumber(0),
|
|
_numFrames(0),
|
|
_numDeleted(0),
|
|
_deleteTime(0.0),
|
|
_numGenerated(0),
|
|
_generateTime(0.0),
|
|
_numApplied(0),
|
|
_applyTime(0.0)
|
|
{
|
|
}
|
|
|
|
void Texture::TextureObjectManager::setMaxTexturePoolSize(unsigned int size)
|
|
{
|
|
if (_maxTexturePoolSize == size) return;
|
|
|
|
if (size<_currTexturePoolSize)
|
|
{
|
|
OSG_NOTICE<<"Warning: new MaxTexturePoolSize="<<size<<" is smaller than current TexturePoolSize="<<_currTexturePoolSize<<std::endl;
|
|
}
|
|
|
|
_maxTexturePoolSize = size;
|
|
}
|
|
|
|
bool Texture::TextureObjectManager::makeSpace(unsigned int size)
|
|
{
|
|
for(TextureSetMap::iterator itr = _textureSetMap.begin();
|
|
itr != _textureSetMap.end() && size>0;
|
|
++itr)
|
|
{
|
|
if ((*itr).second->makeSpace(size)) return true;
|
|
}
|
|
|
|
return size==0;
|
|
}
|
|
|
|
|
|
Texture::TextureObject* Texture::TextureObjectManager::generateTextureObject(const Texture* texture, GLenum target)
|
|
{
|
|
return generateTextureObject(texture, target, 0, 0, 0, 0, 0, 0);
|
|
}
|
|
|
|
Texture::TextureObject* Texture::TextureObjectManager::generateTextureObject(const Texture* texture,
|
|
GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border)
|
|
{
|
|
ElapsedTime elapsedTime(&(getGenerateTime()));
|
|
++getNumberGenerated();
|
|
|
|
Texture::TextureProfile profile(target,numMipmapLevels,internalFormat,width,height,depth,border);
|
|
TextureObjectSet* tos = getTextureObjectSet(profile);
|
|
return tos->takeOrGenerate(const_cast<Texture*>(texture));
|
|
}
|
|
|
|
Texture::TextureObjectSet* Texture::TextureObjectManager::getTextureObjectSet(const TextureProfile& profile)
|
|
{
|
|
osg::ref_ptr<Texture::TextureObjectSet>& tos = _textureSetMap[profile];
|
|
if (!tos) tos = new Texture::TextureObjectSet(this, profile);
|
|
return tos.get();
|
|
}
|
|
|
|
void Texture::TextureObjectManager::handlePendingOrphandedTextureObjects()
|
|
{
|
|
for(TextureSetMap::iterator itr = _textureSetMap.begin();
|
|
itr != _textureSetMap.end();
|
|
++itr)
|
|
{
|
|
(*itr).second->handlePendingOrphandedTextureObjects();
|
|
}
|
|
}
|
|
|
|
void Texture::TextureObjectManager::deleteAllTextureObjects()
|
|
{
|
|
// OSG_NOTICE<<"Texture::TextureObjectManager::deleteAllTextureObjects() _contextID="<<_contextID<<std::endl;
|
|
|
|
ElapsedTime elapsedTime(&(getDeleteTime()));
|
|
|
|
for(TextureSetMap::iterator itr = _textureSetMap.begin();
|
|
itr != _textureSetMap.end();
|
|
++itr)
|
|
{
|
|
(*itr).second->deleteAllTextureObjects();
|
|
}
|
|
}
|
|
|
|
void Texture::TextureObjectManager::discardAllTextureObjects()
|
|
{
|
|
// OSG_NOTICE<<"Texture::TextureObjectManager::discardAllTextureObjects() _contextID="<<_contextID<<" _numActiveTextureObjects="<<_numActiveTextureObjects<<std::endl;
|
|
|
|
for(TextureSetMap::iterator itr = _textureSetMap.begin();
|
|
itr != _textureSetMap.end();
|
|
++itr)
|
|
{
|
|
(*itr).second->discardAllTextureObjects();
|
|
}
|
|
}
|
|
|
|
void Texture::TextureObjectManager::flushAllDeletedTextureObjects()
|
|
{
|
|
// OSG_NOTICE<<"Texture::TextureObjectManager::flushAllDeletedTextureObjects() _contextID="<<_contextID<<std::endl;
|
|
|
|
ElapsedTime elapsedTime(&(getDeleteTime()));
|
|
|
|
for(TextureSetMap::iterator itr = _textureSetMap.begin();
|
|
itr != _textureSetMap.end();
|
|
++itr)
|
|
{
|
|
(*itr).second->flushAllDeletedTextureObjects();
|
|
}
|
|
}
|
|
|
|
void Texture::TextureObjectManager::discardAllDeletedTextureObjects()
|
|
{
|
|
// OSG_NOTICE<<"Texture::TextureObjectManager::discardAllDeletedTextureObjects() _contextID="<<_contextID<<" _numActiveTextureObjects="<<_numActiveTextureObjects<<std::endl;
|
|
|
|
for(TextureSetMap::iterator itr = _textureSetMap.begin();
|
|
itr != _textureSetMap.end();
|
|
++itr)
|
|
{
|
|
(*itr).second->discardAllDeletedTextureObjects();
|
|
}
|
|
}
|
|
|
|
void Texture::TextureObjectManager::flushDeletedTextureObjects(double currentTime, double& availableTime)
|
|
{
|
|
ElapsedTime elapsedTime(&(getDeleteTime()));
|
|
|
|
for(TextureSetMap::iterator itr = _textureSetMap.begin();
|
|
(itr != _textureSetMap.end()) && (availableTime > 0.0);
|
|
++itr)
|
|
{
|
|
(*itr).second->flushDeletedTextureObjects(currentTime, availableTime);
|
|
}
|
|
}
|
|
|
|
void Texture::TextureObjectManager::releaseTextureObject(Texture::TextureObject* to)
|
|
{
|
|
if (to->_set) to->_set->orphan(to);
|
|
else OSG_NOTICE<<"TextureObjectManager::releaseTextureObject(Texture::TextureObject* to) Not implemented yet"<<std::endl;
|
|
}
|
|
|
|
|
|
void Texture::TextureObjectManager::newFrame(osg::FrameStamp* fs)
|
|
{
|
|
if (fs) _frameNumber = fs->getFrameNumber();
|
|
else ++_frameNumber;
|
|
|
|
++_numFrames;
|
|
}
|
|
|
|
void Texture::TextureObjectManager::reportStats()
|
|
{
|
|
double numFrames(_numFrames==0 ? 1.0 : _numFrames);
|
|
OSG_NOTICE<<"TextureObjectMananger::reportStats()"<<std::endl;
|
|
OSG_NOTICE<<" total _numOfTextureObjects="<<_numActiveTextureObjects<<", _numOrphanedTextureObjects="<<_numOrphanedTextureObjects<<" _currTexturePoolSize="<<_currTexturePoolSize<<std::endl;
|
|
OSG_NOTICE<<" total _numGenerated="<<_numGenerated<<", _generateTime="<<_generateTime<<", averagePerFrame="<<_generateTime/numFrames*1000.0<<"ms"<<std::endl;
|
|
OSG_NOTICE<<" total _numDeleted="<<_numDeleted<<", _deleteTime="<<_deleteTime<<", averagePerFrame="<<_deleteTime/numFrames*1000.0<<"ms"<<std::endl;
|
|
OSG_NOTICE<<" total _numApplied="<<_numApplied<<", _applyTime="<<_applyTime<<", averagePerFrame="<<_applyTime/numFrames*1000.0<<"ms"<<std::endl;
|
|
}
|
|
|
|
void Texture::TextureObjectManager::resetStats()
|
|
{
|
|
_numFrames = 0;
|
|
_numDeleted = 0;
|
|
_deleteTime = 0;
|
|
|
|
_numGenerated = 0;
|
|
_generateTime = 0;
|
|
|
|
_numApplied = 0;
|
|
_applyTime = 0;
|
|
}
|
|
|
|
|
|
|
|
osg::ref_ptr<Texture::TextureObjectManager>& Texture::getTextureObjectManager(unsigned int contextID)
|
|
{
|
|
typedef osg::buffered_object< ref_ptr<Texture::TextureObjectManager> > TextureObjectManagerBuffer;
|
|
static TextureObjectManagerBuffer s_TextureObjectManager;
|
|
if (!s_TextureObjectManager[contextID]) s_TextureObjectManager[contextID] = new Texture::TextureObjectManager(contextID);
|
|
return s_TextureObjectManager[contextID];
|
|
}
|
|
|
|
|
|
Texture::TextureObject* Texture::generateTextureObject(const Texture* texture, unsigned int contextID, GLenum target)
|
|
{
|
|
return getTextureObjectManager(contextID)->generateTextureObject(texture, target);
|
|
}
|
|
|
|
Texture::TextureObject* Texture::generateTextureObject(const Texture* texture, unsigned int contextID,
|
|
GLenum target,
|
|
GLint numMipmapLevels,
|
|
GLenum internalFormat,
|
|
GLsizei width,
|
|
GLsizei height,
|
|
GLsizei depth,
|
|
GLint border)
|
|
{
|
|
return getTextureObjectManager(contextID)->generateTextureObject(texture,target,numMipmapLevels,internalFormat,width,height,depth,border);
|
|
}
|
|
|
|
void Texture::deleteAllTextureObjects(unsigned int contextID)
|
|
{
|
|
getTextureObjectManager(contextID)->deleteAllTextureObjects();
|
|
}
|
|
|
|
void Texture::discardAllTextureObjects(unsigned int contextID)
|
|
{
|
|
getTextureObjectManager(contextID)->discardAllTextureObjects();
|
|
}
|
|
|
|
void Texture::flushAllDeletedTextureObjects(unsigned int contextID)
|
|
{
|
|
getTextureObjectManager(contextID)->flushAllDeletedTextureObjects();
|
|
}
|
|
|
|
void Texture::discardAllDeletedTextureObjects(unsigned int contextID)
|
|
{
|
|
getTextureObjectManager(contextID)->discardAllDeletedTextureObjects();
|
|
}
|
|
|
|
void Texture::flushDeletedTextureObjects(unsigned int contextID,double currentTime, double& availbleTime)
|
|
{
|
|
getTextureObjectManager(contextID)->flushDeletedTextureObjects(currentTime, availbleTime);
|
|
}
|
|
|
|
void Texture::releaseTextureObject(unsigned int contextID, Texture::TextureObject* to)
|
|
{
|
|
getTextureObjectManager(contextID)->releaseTextureObject(to);
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////////////////////////////////
|
|
//
|
|
// Texture class implementation
|
|
//
|
|
Texture::Texture():
|
|
_wrap_s(CLAMP),
|
|
_wrap_t(CLAMP),
|
|
_wrap_r(CLAMP),
|
|
_min_filter(LINEAR_MIPMAP_LINEAR), // trilinear
|
|
_mag_filter(LINEAR),
|
|
_maxAnisotropy(1.0f),
|
|
_useHardwareMipMapGeneration(true),
|
|
_unrefImageDataAfterApply(false),
|
|
_clientStorageHint(false),
|
|
_resizeNonPowerOfTwoHint(!OSG_GLES2_FEATURES && !OSG_GL3_FEATURES),
|
|
_borderColor(0.0, 0.0, 0.0, 0.0),
|
|
_borderWidth(0),
|
|
_internalFormatMode(USE_IMAGE_DATA_FORMAT),
|
|
_internalFormatType(NORMALIZED),
|
|
_internalFormat(0),
|
|
_sourceFormat(0),
|
|
_sourceType(0),
|
|
_use_shadow_comparison(false),
|
|
_shadow_compare_func(LEQUAL),
|
|
_shadow_texture_mode(LUMINANCE),
|
|
_shadow_ambient(0)
|
|
{
|
|
}
|
|
|
|
Texture::Texture(const Texture& text,const CopyOp& copyop):
|
|
StateAttribute(text,copyop),
|
|
_wrap_s(text._wrap_s),
|
|
_wrap_t(text._wrap_t),
|
|
_wrap_r(text._wrap_r),
|
|
_min_filter(text._min_filter),
|
|
_mag_filter(text._mag_filter),
|
|
_maxAnisotropy(text._maxAnisotropy),
|
|
_useHardwareMipMapGeneration(text._useHardwareMipMapGeneration),
|
|
_unrefImageDataAfterApply(text._unrefImageDataAfterApply),
|
|
_clientStorageHint(text._clientStorageHint),
|
|
_resizeNonPowerOfTwoHint(text._resizeNonPowerOfTwoHint),
|
|
_borderColor(text._borderColor),
|
|
_borderWidth(text._borderWidth),
|
|
_internalFormatMode(text._internalFormatMode),
|
|
_internalFormatType(text._internalFormatType),
|
|
_internalFormat(text._internalFormat),
|
|
_sourceFormat(text._sourceFormat),
|
|
_sourceType(text._sourceType),
|
|
_use_shadow_comparison(text._use_shadow_comparison),
|
|
_shadow_compare_func(text._shadow_compare_func),
|
|
_shadow_texture_mode(text._shadow_texture_mode),
|
|
_shadow_ambient(text._shadow_ambient)
|
|
{
|
|
}
|
|
|
|
Texture::~Texture()
|
|
{
|
|
// delete old texture objects.
|
|
dirtyTextureObject();
|
|
}
|
|
|
|
int Texture::compareTexture(const Texture& rhs) const
|
|
{
|
|
COMPARE_StateAttribute_Parameter(_wrap_s)
|
|
COMPARE_StateAttribute_Parameter(_wrap_t)
|
|
COMPARE_StateAttribute_Parameter(_wrap_r)
|
|
COMPARE_StateAttribute_Parameter(_min_filter)
|
|
COMPARE_StateAttribute_Parameter(_mag_filter)
|
|
COMPARE_StateAttribute_Parameter(_maxAnisotropy)
|
|
COMPARE_StateAttribute_Parameter(_useHardwareMipMapGeneration)
|
|
COMPARE_StateAttribute_Parameter(_internalFormatMode)
|
|
|
|
// only compare _internalFomat is it has alrady been set in both lhs, and rhs
|
|
if (_internalFormat!=0 && rhs._internalFormat!=0)
|
|
{
|
|
COMPARE_StateAttribute_Parameter(_internalFormat)
|
|
}
|
|
|
|
COMPARE_StateAttribute_Parameter(_sourceFormat)
|
|
COMPARE_StateAttribute_Parameter(_sourceType)
|
|
|
|
COMPARE_StateAttribute_Parameter(_use_shadow_comparison)
|
|
COMPARE_StateAttribute_Parameter(_shadow_compare_func)
|
|
COMPARE_StateAttribute_Parameter(_shadow_texture_mode)
|
|
COMPARE_StateAttribute_Parameter(_shadow_ambient)
|
|
|
|
COMPARE_StateAttribute_Parameter(_unrefImageDataAfterApply)
|
|
COMPARE_StateAttribute_Parameter(_clientStorageHint)
|
|
COMPARE_StateAttribute_Parameter(_resizeNonPowerOfTwoHint)
|
|
|
|
COMPARE_StateAttribute_Parameter(_internalFormatType);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int Texture::compareTextureObjects(const Texture& rhs) const
|
|
{
|
|
if (_textureObjectBuffer.size()<rhs._textureObjectBuffer.size()) return -1;
|
|
if (rhs._textureObjectBuffer.size()<_textureObjectBuffer.size()) return 1;
|
|
for(unsigned int i=0; i<_textureObjectBuffer.size(); ++i)
|
|
{
|
|
if (_textureObjectBuffer[i] < rhs._textureObjectBuffer[i]) return -1;
|
|
else if (rhs._textureObjectBuffer[i] < _textureObjectBuffer[i]) return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void Texture::setWrap(WrapParameter which, WrapMode wrap)
|
|
{
|
|
switch( which )
|
|
{
|
|
case WRAP_S : _wrap_s = wrap; dirtyTextureParameters(); break;
|
|
case WRAP_T : _wrap_t = wrap; dirtyTextureParameters(); break;
|
|
case WRAP_R : _wrap_r = wrap; dirtyTextureParameters(); break;
|
|
default : OSG_WARN<<"Error: invalid 'which' passed Texture::setWrap("<<(unsigned int)which<<","<<(unsigned int)wrap<<")"<<std::endl; break;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
Texture::WrapMode Texture::getWrap(WrapParameter which) const
|
|
{
|
|
switch( which )
|
|
{
|
|
case WRAP_S : return _wrap_s;
|
|
case WRAP_T : return _wrap_t;
|
|
case WRAP_R : return _wrap_r;
|
|
default : OSG_WARN<<"Error: invalid 'which' passed Texture::getWrap(which)"<<std::endl; return _wrap_s;
|
|
}
|
|
}
|
|
|
|
|
|
void Texture::setFilter(FilterParameter which, FilterMode filter)
|
|
{
|
|
switch( which )
|
|
{
|
|
case MIN_FILTER : _min_filter = filter; dirtyTextureParameters(); break;
|
|
case MAG_FILTER : _mag_filter = filter; dirtyTextureParameters(); break;
|
|
default : OSG_WARN<<"Error: invalid 'which' passed Texture::setFilter("<<(unsigned int)which<<","<<(unsigned int)filter<<")"<<std::endl; break;
|
|
}
|
|
}
|
|
|
|
|
|
Texture::FilterMode Texture::getFilter(FilterParameter which) const
|
|
{
|
|
switch( which )
|
|
{
|
|
case MIN_FILTER : return _min_filter;
|
|
case MAG_FILTER : return _mag_filter;
|
|
default : OSG_WARN<<"Error: invalid 'which' passed Texture::getFilter(which)"<< std::endl; return _min_filter;
|
|
}
|
|
}
|
|
|
|
void Texture::setMaxAnisotropy(float anis)
|
|
{
|
|
if (_maxAnisotropy!=anis)
|
|
{
|
|
_maxAnisotropy = anis;
|
|
dirtyTextureParameters();
|
|
}
|
|
}
|
|
|
|
|
|
/** Force a recompile on next apply() of associated OpenGL texture objects.*/
|
|
void Texture::dirtyTextureObject()
|
|
{
|
|
for(unsigned int i=0; i<_textureObjectBuffer.size();++i)
|
|
{
|
|
if (_textureObjectBuffer[i].valid())
|
|
{
|
|
Texture::releaseTextureObject(i, _textureObjectBuffer[i].get());
|
|
_textureObjectBuffer[i] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
void Texture::dirtyTextureParameters()
|
|
{
|
|
_texParametersDirtyList.setAllElementsTo(1);
|
|
}
|
|
|
|
void Texture::allocateMipmapLevels()
|
|
{
|
|
_texMipmapGenerationDirtyList.setAllElementsTo(1);
|
|
}
|
|
|
|
void Texture::computeInternalFormatWithImage(const osg::Image& image) const
|
|
{
|
|
GLint internalFormat = image.getInternalTextureFormat();
|
|
|
|
if (_internalFormatMode==USE_IMAGE_DATA_FORMAT)
|
|
{
|
|
internalFormat = image.getInternalTextureFormat();
|
|
}
|
|
else if (_internalFormatMode==USE_USER_DEFINED_FORMAT)
|
|
{
|
|
internalFormat = _internalFormat;
|
|
}
|
|
else
|
|
{
|
|
|
|
const unsigned int contextID = 0; // state.getContextID(); // set to 0 right now, assume same parameters for each graphics context...
|
|
const Extensions* extensions = getExtensions(contextID,true);
|
|
|
|
switch(_internalFormatMode)
|
|
{
|
|
case(USE_ARB_COMPRESSION):
|
|
if (extensions->isTextureCompressionARBSupported())
|
|
{
|
|
switch(image.getPixelFormat())
|
|
{
|
|
case(1): internalFormat = GL_COMPRESSED_ALPHA_ARB; break;
|
|
case(2): internalFormat = GL_COMPRESSED_LUMINANCE_ALPHA_ARB; break;
|
|
case(3): internalFormat = GL_COMPRESSED_RGB_ARB; break;
|
|
case(4): internalFormat = GL_COMPRESSED_RGBA_ARB; break;
|
|
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_ARB; break;
|
|
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_ARB; break;
|
|
case(GL_ALPHA): internalFormat = GL_COMPRESSED_ALPHA_ARB; break;
|
|
case(GL_LUMINANCE): internalFormat = GL_COMPRESSED_LUMINANCE_ARB; break;
|
|
case(GL_LUMINANCE_ALPHA): internalFormat = GL_COMPRESSED_LUMINANCE_ALPHA_ARB; break;
|
|
case(GL_INTENSITY): internalFormat = GL_COMPRESSED_INTENSITY_ARB; break;
|
|
}
|
|
}
|
|
else internalFormat = image.getInternalTextureFormat();
|
|
break;
|
|
|
|
case(USE_S3TC_DXT1_COMPRESSION):
|
|
if (extensions->isTextureCompressionS3TCSupported())
|
|
{
|
|
switch(image.getPixelFormat())
|
|
{
|
|
case(3): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
|
|
case(4): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break;
|
|
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
|
|
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT1_EXT; break;
|
|
default: internalFormat = image.getInternalTextureFormat(); break;
|
|
}
|
|
}
|
|
else internalFormat = image.getInternalTextureFormat();
|
|
break;
|
|
|
|
case(USE_S3TC_DXT3_COMPRESSION):
|
|
if (extensions->isTextureCompressionS3TCSupported())
|
|
{
|
|
switch(image.getPixelFormat())
|
|
{
|
|
case(3):
|
|
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
|
|
case(4):
|
|
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT3_EXT; break;
|
|
default: internalFormat = image.getInternalTextureFormat(); break;
|
|
}
|
|
}
|
|
else internalFormat = image.getInternalTextureFormat();
|
|
break;
|
|
|
|
case(USE_S3TC_DXT5_COMPRESSION):
|
|
if (extensions->isTextureCompressionS3TCSupported())
|
|
{
|
|
switch(image.getPixelFormat())
|
|
{
|
|
case(3):
|
|
case(GL_RGB): internalFormat = GL_COMPRESSED_RGB_S3TC_DXT1_EXT; break;
|
|
case(4):
|
|
case(GL_RGBA): internalFormat = GL_COMPRESSED_RGBA_S3TC_DXT5_EXT; break;
|
|
default: internalFormat = image.getInternalTextureFormat(); break;
|
|
}
|
|
}
|
|
else internalFormat = image.getInternalTextureFormat();
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
_internalFormat = internalFormat;
|
|
|
|
// GLES doesn't cope with internal formats of 1,2,3 and 4 so map them to the appropriate equivilants.
|
|
if (_internalFormat==1) _internalFormat = GL_LUMINANCE;
|
|
if (_internalFormat==2) _internalFormat = GL_LUMINANCE_ALPHA;
|
|
if (_internalFormat==3) _internalFormat = GL_RGB;
|
|
if (_internalFormat==4) _internalFormat = GL_RGBA;
|
|
|
|
computeInternalFormatType();
|
|
|
|
//OSG_NOTICE<<"Internal format="<<std::hex<<internalFormat<<std::dec<<std::endl;
|
|
}
|
|
|
|
void Texture::computeInternalFormatType() const
|
|
{
|
|
// Here we could also precompute the _sourceFormat if it is not set,
|
|
// since it is different for different internal formats
|
|
// (i.e. rgba integer texture --> _sourceFormat = GL_RGBA_INTEGER_EXT)
|
|
// Should we do this? ( Art, 09. Sept. 2007)
|
|
|
|
// compute internal format type based on the internal format
|
|
switch(_internalFormat)
|
|
{
|
|
case GL_RGBA32UI_EXT:
|
|
case GL_RGBA16UI_EXT:
|
|
case GL_RGBA8UI_EXT:
|
|
|
|
case GL_RGB32UI_EXT:
|
|
case GL_RGB16UI_EXT:
|
|
case GL_RGB8UI_EXT:
|
|
|
|
case GL_LUMINANCE32UI_EXT:
|
|
case GL_LUMINANCE16UI_EXT:
|
|
case GL_LUMINANCE8UI_EXT:
|
|
|
|
case GL_INTENSITY32UI_EXT:
|
|
case GL_INTENSITY16UI_EXT:
|
|
case GL_INTENSITY8UI_EXT:
|
|
|
|
case GL_LUMINANCE_ALPHA32UI_EXT:
|
|
case GL_LUMINANCE_ALPHA16UI_EXT:
|
|
case GL_LUMINANCE_ALPHA8UI_EXT :
|
|
_internalFormatType = UNSIGNED_INTEGER;
|
|
break;
|
|
|
|
case GL_RGBA32I_EXT:
|
|
case GL_RGBA16I_EXT:
|
|
case GL_RGBA8I_EXT:
|
|
|
|
case GL_RGB32I_EXT:
|
|
case GL_RGB16I_EXT:
|
|
case GL_RGB8I_EXT:
|
|
|
|
case GL_LUMINANCE32I_EXT:
|
|
case GL_LUMINANCE16I_EXT:
|
|
case GL_LUMINANCE8I_EXT:
|
|
|
|
case GL_INTENSITY32I_EXT:
|
|
case GL_INTENSITY16I_EXT:
|
|
case GL_INTENSITY8I_EXT:
|
|
|
|
case GL_LUMINANCE_ALPHA32I_EXT:
|
|
case GL_LUMINANCE_ALPHA16I_EXT:
|
|
case GL_LUMINANCE_ALPHA8I_EXT:
|
|
_internalFormatType = SIGNED_INTEGER;
|
|
break;
|
|
|
|
case GL_RGBA32F_ARB:
|
|
case GL_RGBA16F_ARB:
|
|
|
|
case GL_RGB32F_ARB:
|
|
case GL_RGB16F_ARB:
|
|
|
|
case GL_LUMINANCE32F_ARB:
|
|
case GL_LUMINANCE16F_ARB:
|
|
|
|
case GL_INTENSITY32F_ARB:
|
|
case GL_INTENSITY16F_ARB:
|
|
|
|
case GL_LUMINANCE_ALPHA32F_ARB:
|
|
case GL_LUMINANCE_ALPHA16F_ARB:
|
|
_internalFormatType = FLOAT;
|
|
break;
|
|
|
|
default:
|
|
_internalFormatType = NORMALIZED;
|
|
break;
|
|
};
|
|
}
|
|
|
|
bool Texture::isCompressedInternalFormat() const
|
|
{
|
|
return isCompressedInternalFormat(getInternalFormat());
|
|
}
|
|
|
|
bool Texture::isCompressedInternalFormat(GLint internalFormat)
|
|
{
|
|
switch(internalFormat)
|
|
{
|
|
case(GL_COMPRESSED_ALPHA_ARB):
|
|
case(GL_COMPRESSED_INTENSITY_ARB):
|
|
case(GL_COMPRESSED_LUMINANCE_ALPHA_ARB):
|
|
case(GL_COMPRESSED_LUMINANCE_ARB):
|
|
case(GL_COMPRESSED_RGBA_ARB):
|
|
case(GL_COMPRESSED_RGB_ARB):
|
|
case(GL_COMPRESSED_RGB_S3TC_DXT1_EXT):
|
|
case(GL_COMPRESSED_RGBA_S3TC_DXT1_EXT):
|
|
case(GL_COMPRESSED_RGBA_S3TC_DXT3_EXT):
|
|
case(GL_COMPRESSED_RGBA_S3TC_DXT5_EXT):
|
|
return true;
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void Texture::getCompressedSize(GLenum internalFormat, GLint width, GLint height, GLint depth, GLint& blockSize, GLint& size)
|
|
{
|
|
if (internalFormat == GL_COMPRESSED_RGB_S3TC_DXT1_EXT || internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT)
|
|
blockSize = 8;
|
|
else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT3_EXT || internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT5_EXT)
|
|
blockSize = 16;
|
|
else
|
|
{
|
|
OSG_WARN<<"Texture::getCompressedSize(...) : cannot compute correct size of compressed format ("<<internalFormat<<") returning 0."<<std::endl;
|
|
blockSize = 0;
|
|
}
|
|
|
|
size = ((width+3)/4)*((height+3)/4)*depth*blockSize;
|
|
}
|
|
|
|
void Texture::applyTexParameters(GLenum target, State& state) const
|
|
{
|
|
// get the contextID (user defined ID of 0 upwards) for the
|
|
// current OpenGL context.
|
|
const unsigned int contextID = state.getContextID();
|
|
const Extensions* extensions = getExtensions(contextID,true);
|
|
|
|
WrapMode ws = _wrap_s, wt = _wrap_t, wr = _wrap_r;
|
|
|
|
// GL_IBM_texture_mirrored_repeat, fall-back REPEAT
|
|
if (!extensions->isTextureMirroredRepeatSupported())
|
|
{
|
|
if (ws == MIRROR)
|
|
ws = REPEAT;
|
|
if (wt == MIRROR)
|
|
wt = REPEAT;
|
|
if (wr == MIRROR)
|
|
wr = REPEAT;
|
|
}
|
|
|
|
// GL_EXT_texture_edge_clamp, fall-back CLAMP
|
|
if (!extensions->isTextureEdgeClampSupported())
|
|
{
|
|
if (ws == CLAMP_TO_EDGE)
|
|
ws = CLAMP;
|
|
if (wt == CLAMP_TO_EDGE)
|
|
wt = CLAMP;
|
|
if (wr == CLAMP_TO_EDGE)
|
|
wr = CLAMP;
|
|
}
|
|
|
|
if(!extensions->isTextureBorderClampSupported())
|
|
{
|
|
if(ws == CLAMP_TO_BORDER)
|
|
ws = CLAMP;
|
|
if(wt == CLAMP_TO_BORDER)
|
|
wt = CLAMP;
|
|
if(wr == CLAMP_TO_BORDER)
|
|
wr = CLAMP;
|
|
}
|
|
|
|
#if defined(OSG_GLES1_AVAILABLE) || defined(OSG_GLES2_AVAILABLE)
|
|
if (ws == CLAMP) ws = CLAMP_TO_EDGE;
|
|
if (wt == CLAMP) wt = CLAMP_TO_EDGE;
|
|
if (wr == CLAMP) wr = CLAMP_TO_EDGE;
|
|
#endif
|
|
|
|
const Image * image = getImage(0);
|
|
if( image &&
|
|
image->isMipmap() &&
|
|
extensions->isTextureMaxLevelSupported() &&
|
|
int( image->getNumMipmapLevels() ) <
|
|
Image::computeNumberOfMipmapLevels( image->s(), image->t(), image->r() ) )
|
|
glTexParameteri( target, GL_TEXTURE_MAX_LEVEL, image->getNumMipmapLevels() - 1 );
|
|
|
|
|
|
glTexParameteri( target, GL_TEXTURE_WRAP_S, ws );
|
|
|
|
if (target!=GL_TEXTURE_1D) glTexParameteri( target, GL_TEXTURE_WRAP_T, wt );
|
|
|
|
if (target==GL_TEXTURE_3D) glTexParameteri( target, GL_TEXTURE_WRAP_R, wr );
|
|
|
|
|
|
glTexParameteri( target, GL_TEXTURE_MIN_FILTER, _min_filter);
|
|
glTexParameteri( target, GL_TEXTURE_MAG_FILTER, _mag_filter);
|
|
|
|
// Art: I think anisotropic filtering is not supported by the integer textures
|
|
if (extensions->isTextureFilterAnisotropicSupported() &&
|
|
_internalFormatType != SIGNED_INTEGER && _internalFormatType != UNSIGNED_INTEGER)
|
|
{
|
|
// note, GL_TEXTURE_MAX_ANISOTROPY_EXT will either be defined
|
|
// by gl.h (or via glext.h) or by include/osg/Texture.
|
|
glTexParameterf(target, GL_TEXTURE_MAX_ANISOTROPY_EXT, _maxAnisotropy);
|
|
}
|
|
|
|
if (extensions->isTextureBorderClampSupported())
|
|
{
|
|
|
|
#ifndef GL_TEXTURE_BORDER_COLOR
|
|
#define GL_TEXTURE_BORDER_COLOR 0x1004
|
|
#endif
|
|
|
|
|
|
if (_internalFormatType == SIGNED_INTEGER)
|
|
{
|
|
GLint color[4] = {(GLint)_borderColor.r(), (GLint)_borderColor.g(), (GLint)_borderColor.b(), (GLint)_borderColor.a()};
|
|
extensions->glTexParameterIiv(target, GL_TEXTURE_BORDER_COLOR, color);
|
|
}else if (_internalFormatType == UNSIGNED_INTEGER)
|
|
{
|
|
GLuint color[4] = {(GLuint)_borderColor.r(), (GLuint)_borderColor.g(), (GLuint)_borderColor.b(), (GLuint)_borderColor.a()};
|
|
extensions->glTexParameterIuiv(target, GL_TEXTURE_BORDER_COLOR, color);
|
|
}else{
|
|
GLfloat color[4] = {(GLfloat)_borderColor.r(), (GLfloat)_borderColor.g(), (GLfloat)_borderColor.b(), (GLfloat)_borderColor.a()};
|
|
glTexParameterfv(target, GL_TEXTURE_BORDER_COLOR, color);
|
|
}
|
|
}
|
|
|
|
// integer textures are not supported by the shadow
|
|
// GL_TEXTURE_1D_ARRAY_EXT could be included in the check below but its not yet implemented in OSG
|
|
if (extensions->isShadowSupported() &&
|
|
(target == GL_TEXTURE_2D || target == GL_TEXTURE_1D || target == GL_TEXTURE_RECTANGLE || target == GL_TEXTURE_CUBE_MAP || target == GL_TEXTURE_2D_ARRAY_EXT ) &&
|
|
_internalFormatType != SIGNED_INTEGER && _internalFormatType != UNSIGNED_INTEGER)
|
|
{
|
|
if (_use_shadow_comparison)
|
|
{
|
|
glTexParameteri(target, GL_TEXTURE_COMPARE_MODE_ARB, GL_COMPARE_R_TO_TEXTURE_ARB);
|
|
glTexParameteri(target, GL_TEXTURE_COMPARE_FUNC_ARB, _shadow_compare_func);
|
|
glTexParameteri(target, GL_DEPTH_TEXTURE_MODE_ARB, _shadow_texture_mode);
|
|
|
|
// if ambient value is 0 - it is default behaviour of GL_ARB_shadow
|
|
// no need for GL_ARB_shadow_ambient in this case
|
|
if (extensions->isShadowAmbientSupported() && _shadow_ambient > 0)
|
|
{
|
|
glTexParameterf(target, TEXTURE_COMPARE_FAIL_VALUE_ARB, _shadow_ambient);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
glTexParameteri(target, GL_TEXTURE_COMPARE_MODE_ARB, GL_NONE);
|
|
}
|
|
}
|
|
|
|
getTextureParameterDirty(state.getContextID()) = false;
|
|
|
|
}
|
|
|
|
void Texture::computeRequiredTextureDimensions(State& state, const osg::Image& image,GLsizei& inwidth, GLsizei& inheight,GLsizei& numMipmapLevels) const
|
|
{
|
|
const unsigned int contextID = state.getContextID();
|
|
const Extensions* extensions = getExtensions(contextID,true);
|
|
|
|
int width,height;
|
|
|
|
if( !_resizeNonPowerOfTwoHint && extensions->isNonPowerOfTwoTextureSupported(_min_filter) )
|
|
{
|
|
width = image.s();
|
|
height = image.t();
|
|
}
|
|
else
|
|
{
|
|
width = Image::computeNearestPowerOfTwo(image.s()-2*_borderWidth)+2*_borderWidth;
|
|
height = Image::computeNearestPowerOfTwo(image.t()-2*_borderWidth)+2*_borderWidth;
|
|
}
|
|
|
|
// cap the size to what the graphics hardware can handle.
|
|
if (width>extensions->maxTextureSize()) width = extensions->maxTextureSize();
|
|
if (height>extensions->maxTextureSize()) height = extensions->maxTextureSize();
|
|
|
|
inwidth = width;
|
|
inheight = height;
|
|
|
|
if( _min_filter == LINEAR || _min_filter == NEAREST)
|
|
{
|
|
numMipmapLevels = 1;
|
|
}
|
|
else if( image.isMipmap() )
|
|
{
|
|
numMipmapLevels = image.getNumMipmapLevels();
|
|
}
|
|
else
|
|
{
|
|
numMipmapLevels = 1;
|
|
for(int s=1; s<width || s<height; s <<= 1, ++numMipmapLevels) {}
|
|
}
|
|
|
|
// OSG_NOTICE<<"Texture::computeRequiredTextureDimensions() image.s() "<<image.s()<<" image.t()="<<image.t()<<" width="<<width<<" height="<<height<<" numMipmapLevels="<<numMipmapLevels<<std::endl;
|
|
// OSG_NOTICE<<" _resizeNonPowerOfTwoHint="<<_resizeNonPowerOfTwoHint<<" extensions->isNonPowerOfTwoTextureSupported(_min_filter)="<<extensions->isNonPowerOfTwoTextureSupported(_min_filter) <<std::endl;
|
|
}
|
|
|
|
bool Texture::areAllTextureObjectsLoaded() const
|
|
{
|
|
for(unsigned int i=0;i<DisplaySettings::instance()->getMaxNumberOfGraphicsContexts();++i)
|
|
{
|
|
if (_textureObjectBuffer[i]==0) return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
|
|
void Texture::applyTexImage2D_load(State& state, GLenum target, const Image* image, GLsizei inwidth, GLsizei inheight,GLsizei numMipmapLevels) const
|
|
{
|
|
// if we don't have a valid image we can't create a texture!
|
|
if (!image || !image->data())
|
|
return;
|
|
|
|
#ifdef DO_TIMING
|
|
osg::Timer_t start_tick = osg::Timer::instance()->tick();
|
|
OSG_NOTICE<<"glTexImage2D pixelFormat = "<<std::hex<<image->getPixelFormat()<<std::dec<<std::endl;
|
|
#endif
|
|
|
|
// get the contextID (user defined ID of 0 upwards) for the
|
|
// current OpenGL context.
|
|
const unsigned int contextID = state.getContextID();
|
|
const Extensions* extensions = getExtensions(contextID,true);
|
|
|
|
// select the internalFormat required for the texture.
|
|
bool compressed_image = isCompressedInternalFormat((GLenum)image->getPixelFormat());
|
|
|
|
// If the texture's internal format is a compressed type, then the
|
|
// user is requesting that the graphics card compress the image if it's
|
|
// not already compressed. However, if the image is not a multiple of
|
|
// four in each dimension the subsequent calls to glTexSubImage* will
|
|
// fail. Revert to uncompressed format in this case.
|
|
if (isCompressedInternalFormat(_internalFormat) &&
|
|
(((inwidth >> 2) << 2) != inwidth ||
|
|
((inheight >> 2) << 2) != inheight))
|
|
{
|
|
OSG_NOTICE<<"Received a request to compress an image, but image size is not a multiple of four ("<<inwidth<<"x"<<inheight<<"). Reverting to uncompressed.\n";
|
|
switch(_internalFormat)
|
|
{
|
|
case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
|
|
case GL_COMPRESSED_RGB: _internalFormat = GL_RGB; break;
|
|
case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
|
|
case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
|
|
case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
|
|
case GL_COMPRESSED_RGBA: _internalFormat = GL_RGBA; break;
|
|
case GL_COMPRESSED_ALPHA: _internalFormat = GL_ALPHA; break;
|
|
case GL_COMPRESSED_LUMINANCE: _internalFormat = GL_LUMINANCE; break;
|
|
case GL_COMPRESSED_LUMINANCE_ALPHA: _internalFormat = GL_LUMINANCE_ALPHA; break;
|
|
case GL_COMPRESSED_INTENSITY: _internalFormat = GL_INTENSITY; break;
|
|
}
|
|
}
|
|
|
|
glPixelStorei(GL_UNPACK_ALIGNMENT,image->getPacking());
|
|
|
|
bool useClientStorage = extensions->isClientStorageSupported() && getClientStorageHint();
|
|
if (useClientStorage)
|
|
{
|
|
glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE,GL_TRUE);
|
|
|
|
#if !defined(OSG_GLES1_AVAILABLE) && !defined(OSG_GLES2_AVAILABLE) && !defined(OSG_GL3_AVAILABLE)
|
|
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_PRIORITY,0.0f);
|
|
#endif
|
|
|
|
#ifdef GL_TEXTURE_STORAGE_HINT_APPLE
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_STORAGE_HINT_APPLE , GL_STORAGE_CACHED_APPLE);
|
|
#endif
|
|
}
|
|
|
|
unsigned char* dataPtr = (unsigned char*)image->data();
|
|
|
|
// OSG_NOTICE<<"inwidth="<<inwidth<<" inheight="<<inheight<<" image->getFileName()"<<image->getFileName()<<std::endl;
|
|
|
|
bool needImageRescale = inwidth!=image->s() || inheight!=image->t();
|
|
if (needImageRescale)
|
|
{
|
|
#ifdef OSG_GLU_AVAILABLE
|
|
// resize the image to power of two.
|
|
|
|
if (image->isMipmap())
|
|
{
|
|
OSG_WARN<<"Warning:: Mipmapped osg::Image not a power of two, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
else if (compressed_image)
|
|
{
|
|
OSG_WARN<<"Warning:: Compressed osg::Image not a power of two, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
unsigned int newTotalSize = osg::Image::computeRowWidthInBytes(inwidth,image->getPixelFormat(),image->getDataType(),image->getPacking())*inheight;
|
|
dataPtr = new unsigned char [newTotalSize];
|
|
|
|
if (!dataPtr)
|
|
{
|
|
OSG_WARN<<"Warning:: Not enough memory to resize image, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
if (!image->getFileName().empty()) { OSG_NOTICE << "Scaling image '"<<image->getFileName()<<"' from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
|
|
else { OSG_NOTICE << "Scaling image from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
|
|
|
|
// rescale the image to the correct size.
|
|
glPixelStorei(GL_PACK_ALIGNMENT,image->getPacking());
|
|
gluScaleImage(image->getPixelFormat(),
|
|
image->s(),image->t(),image->getDataType(),image->data(),
|
|
inwidth,inheight,image->getDataType(),dataPtr);
|
|
#else
|
|
OSG_NOTICE<<"Warning: gluScaleImage(..) not supported, cannot subload image."<<std::endl;
|
|
return;
|
|
#endif
|
|
}
|
|
|
|
bool mipmappingRequired = _min_filter != LINEAR && _min_filter != NEAREST;
|
|
bool useHardwareMipMapGeneration = mipmappingRequired && (!image->isMipmap() && isHardwareMipmapGenerationEnabled(state));
|
|
bool useGluBuildMipMaps = mipmappingRequired && (!useHardwareMipMapGeneration && !image->isMipmap());
|
|
|
|
GLBufferObject* pbo = image->getOrCreateGLBufferObject(contextID);
|
|
if (pbo && !needImageRescale && !useGluBuildMipMaps)
|
|
{
|
|
state.bindPixelBufferObject(pbo);
|
|
dataPtr = reinterpret_cast<unsigned char*>(pbo->getOffset(image->getBufferIndex()));
|
|
#ifdef DO_TIMING
|
|
OSG_NOTICE<<"after PBO "<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
pbo = 0;
|
|
}
|
|
|
|
if( !mipmappingRequired || useHardwareMipMapGeneration)
|
|
{
|
|
|
|
GenerateMipmapMode mipmapResult = mipmapBeforeTexImage(state, useHardwareMipMapGeneration);
|
|
|
|
if ( !compressed_image)
|
|
{
|
|
numMipmapLevels = 1;
|
|
|
|
glTexImage2D( target, 0, _internalFormat,
|
|
inwidth, inheight, _borderWidth,
|
|
(GLenum)image->getPixelFormat(),
|
|
(GLenum)image->getDataType(),
|
|
dataPtr);
|
|
|
|
}
|
|
else if (extensions->isCompressedTexImage2DSupported())
|
|
{
|
|
numMipmapLevels = 1;
|
|
|
|
GLint blockSize, size;
|
|
getCompressedSize(_internalFormat, inwidth, inheight, 1, blockSize,size);
|
|
|
|
extensions->glCompressedTexImage2D(target, 0, _internalFormat,
|
|
inwidth, inheight,0,
|
|
size,
|
|
dataPtr);
|
|
}
|
|
|
|
mipmapAfterTexImage(state, mipmapResult);
|
|
}
|
|
else
|
|
{
|
|
// we require mip mapping.
|
|
if(image->isMipmap())
|
|
{
|
|
|
|
// image is mip mapped so we take the mip map levels from the image.
|
|
|
|
numMipmapLevels = image->getNumMipmapLevels();
|
|
|
|
int width = inwidth;
|
|
int height = inheight;
|
|
|
|
if( !compressed_image )
|
|
{
|
|
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
|
|
{
|
|
|
|
if (width == 0)
|
|
width = 1;
|
|
if (height == 0)
|
|
height = 1;
|
|
|
|
glTexImage2D( target, k, _internalFormat,
|
|
width, height, _borderWidth,
|
|
(GLenum)image->getPixelFormat(),
|
|
(GLenum)image->getDataType(),
|
|
dataPtr + image->getMipmapOffset(k));
|
|
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
}
|
|
else if (extensions->isCompressedTexImage2DSupported())
|
|
{
|
|
GLint blockSize, size;
|
|
|
|
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
|
|
{
|
|
if (width == 0)
|
|
width = 1;
|
|
if (height == 0)
|
|
height = 1;
|
|
|
|
getCompressedSize(_internalFormat, width, height, 1, blockSize,size);
|
|
|
|
extensions->glCompressedTexImage2D(target, k, _internalFormat,
|
|
width, height, _borderWidth,
|
|
size, dataPtr + image->getMipmapOffset(k));
|
|
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
|
|
if ( !compressed_image)
|
|
{
|
|
numMipmapLevels = 0;
|
|
#ifdef OSG_GLU_AVAILABLE
|
|
gluBuild2DMipmaps( target, _internalFormat,
|
|
inwidth,inheight,
|
|
(GLenum)image->getPixelFormat(), (GLenum)image->getDataType(),
|
|
dataPtr);
|
|
|
|
int width = image->s();
|
|
int height = image->t();
|
|
for( numMipmapLevels = 0 ; (width || height) ; ++numMipmapLevels)
|
|
{
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
#else
|
|
OSG_NOTICE<<"Warning:: gluBuild2DMipMaps(..) not supported."<<std::endl;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
OSG_WARN<<"Warning:: Compressed image cannot be mip mapped"<<std::endl;
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (pbo)
|
|
{
|
|
state.unbindPixelBufferObject();
|
|
}
|
|
|
|
#ifdef DO_TIMING
|
|
static double s_total_time = 0.0;
|
|
double delta_time = osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick());
|
|
s_total_time += delta_time;
|
|
OSG_NOTICE<<"glTexImage2D "<<delta_time<<"ms total "<<s_total_time<<"ms"<<std::endl;
|
|
#endif
|
|
|
|
if (needImageRescale)
|
|
{
|
|
// clean up the resized image.
|
|
delete [] dataPtr;
|
|
}
|
|
|
|
if (useClientStorage)
|
|
{
|
|
glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE,GL_FALSE);
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void Texture::applyTexImage2D_subload(State& state, GLenum target, const Image* image, GLsizei inwidth, GLsizei inheight, GLint inInternalFormat, GLint numMipmapLevels) const
|
|
{
|
|
// if we don't have a valid image we can't create a texture!
|
|
if (!image || !image->data())
|
|
return;
|
|
|
|
// image size has changed so we have to re-load the image from scratch.
|
|
if (image->s()!=inwidth || image->t()!=inheight || image->getInternalTextureFormat()!=inInternalFormat )
|
|
{
|
|
applyTexImage2D_load(state, target, image, inwidth, inheight,numMipmapLevels);
|
|
return;
|
|
}
|
|
// else image size the same as when loaded so we can go ahead and subload
|
|
|
|
// If the texture's internal format is a compressed type, then the
|
|
// user is requesting that the graphics card compress the image if it's
|
|
// not already compressed. However, if the image is not a multiple of
|
|
// four in each dimension the subsequent calls to glTexSubImage* will
|
|
// fail. Revert to uncompressed format in this case.
|
|
if (isCompressedInternalFormat(_internalFormat) &&
|
|
(((inwidth >> 2) << 2) != inwidth ||
|
|
((inheight >> 2) << 2) != inheight))
|
|
{
|
|
applyTexImage2D_load(state, target, image, inwidth, inheight, numMipmapLevels);
|
|
return;
|
|
}
|
|
|
|
#ifdef DO_TIMING
|
|
osg::Timer_t start_tick = osg::Timer::instance()->tick();
|
|
OSG_NOTICE<<"glTexSubImage2D pixelFormat = "<<std::hex<<image->getPixelFormat()<<std::dec<<std::endl;
|
|
#endif
|
|
|
|
|
|
// get the contextID (user defined ID of 0 upwards) for the
|
|
// current OpenGL context.
|
|
const unsigned int contextID = state.getContextID();
|
|
const Extensions* extensions = getExtensions(contextID,true);
|
|
|
|
// select the internalFormat required for the texture.
|
|
bool compressed_image = isCompressedInternalFormat((GLenum)image->getPixelFormat());
|
|
|
|
glPixelStorei(GL_UNPACK_ALIGNMENT,image->getPacking());
|
|
|
|
unsigned char* data = (unsigned char*)image->data();
|
|
|
|
|
|
bool needImageRescale = inwidth!=image->s() || inheight!=image->t();
|
|
if (needImageRescale)
|
|
{
|
|
#ifdef OSG_GLU_AVAILABLE
|
|
// resize the image to power of two.
|
|
if (image->isMipmap())
|
|
{
|
|
OSG_WARN<<"Warning:: Mipmapped osg::Image not a power of two, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
else if (compressed_image)
|
|
{
|
|
OSG_WARN<<"Warning:: Compressed osg::Image not a power of two, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
unsigned int newTotalSize = osg::Image::computeRowWidthInBytes(inwidth,image->getPixelFormat(),image->getDataType(),image->getPacking())*inheight;
|
|
data = new unsigned char [newTotalSize];
|
|
|
|
if (!data)
|
|
{
|
|
OSG_WARN<<"Warning:: Not enough memory to resize image, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
if (!image->getFileName().empty()) { OSG_NOTICE << "Scaling image '"<<image->getFileName()<<"' from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
|
|
else { OSG_NOTICE << "Scaling image from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl; }
|
|
|
|
// rescale the image to the correct size.
|
|
glPixelStorei(GL_PACK_ALIGNMENT,image->getPacking());
|
|
gluScaleImage(image->getPixelFormat(),
|
|
image->s(),image->t(),image->getDataType(),image->data(),
|
|
inwidth,inheight,image->getDataType(),data);
|
|
#else
|
|
OSG_NOTICE<<"Warning: gluScaleImage(..) not supported, cannot subload image."<<std::endl;
|
|
return;
|
|
#endif
|
|
}
|
|
|
|
|
|
bool mipmappingRequired = _min_filter != LINEAR && _min_filter != NEAREST;
|
|
bool useHardwareMipMapGeneration = mipmappingRequired && (!image->isMipmap() && isHardwareMipmapGenerationEnabled(state));
|
|
bool useGluBuildMipMaps = mipmappingRequired && (!useHardwareMipMapGeneration && !image->isMipmap());
|
|
|
|
const unsigned char* dataPtr = image->data();
|
|
GLBufferObject* pbo = image->getOrCreateGLBufferObject(contextID);
|
|
if (pbo && !needImageRescale && !useGluBuildMipMaps)
|
|
{
|
|
state.bindPixelBufferObject(pbo);
|
|
dataPtr = reinterpret_cast<unsigned char*>(pbo->getOffset(image->getBufferIndex()));
|
|
#ifdef DO_TIMING
|
|
OSG_NOTICE<<"after PBO "<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
pbo = 0;
|
|
}
|
|
|
|
if( !mipmappingRequired || useHardwareMipMapGeneration)
|
|
{
|
|
|
|
GenerateMipmapMode mipmapResult = mipmapBeforeTexImage(state, useHardwareMipMapGeneration);
|
|
|
|
if (!compressed_image)
|
|
{
|
|
glTexSubImage2D( target, 0,
|
|
0, 0,
|
|
inwidth, inheight,
|
|
(GLenum)image->getPixelFormat(),
|
|
(GLenum)image->getDataType(),
|
|
dataPtr);
|
|
}
|
|
else if (extensions->isCompressedTexImage2DSupported())
|
|
{
|
|
GLint blockSize,size;
|
|
getCompressedSize(image->getInternalTextureFormat(), inwidth, inheight, 1, blockSize,size);
|
|
|
|
extensions->glCompressedTexSubImage2D(target, 0,
|
|
0,0,
|
|
inwidth, inheight,
|
|
(GLenum)image->getPixelFormat(),
|
|
size,
|
|
dataPtr);
|
|
}
|
|
|
|
mipmapAfterTexImage(state, mipmapResult);
|
|
}
|
|
else
|
|
{
|
|
if (image->isMipmap())
|
|
{
|
|
numMipmapLevels = image->getNumMipmapLevels();
|
|
|
|
int width = inwidth;
|
|
int height = inheight;
|
|
|
|
if( !compressed_image )
|
|
{
|
|
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
|
|
{
|
|
|
|
if (width == 0)
|
|
width = 1;
|
|
if (height == 0)
|
|
height = 1;
|
|
|
|
glTexSubImage2D( target, k,
|
|
0, 0,
|
|
width, height,
|
|
(GLenum)image->getPixelFormat(),
|
|
(GLenum)image->getDataType(),
|
|
dataPtr + image->getMipmapOffset(k));
|
|
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
}
|
|
else if (extensions->isCompressedTexImage2DSupported())
|
|
{
|
|
GLint blockSize,size;
|
|
for( GLsizei k = 0 ; k < numMipmapLevels && (width || height) ;k++)
|
|
{
|
|
if (width == 0)
|
|
width = 1;
|
|
if (height == 0)
|
|
height = 1;
|
|
|
|
getCompressedSize(image->getInternalTextureFormat(), width, height, 1, blockSize,size);
|
|
|
|
//state.checkGLErrors("before extensions->glCompressedTexSubImage2D(");
|
|
|
|
extensions->glCompressedTexSubImage2D(target, k,
|
|
0, 0,
|
|
width, height,
|
|
(GLenum)image->getPixelFormat(),
|
|
size,
|
|
dataPtr + image->getMipmapOffset(k));
|
|
|
|
//state.checkGLErrors("after extensions->glCompressedTexSubImage2D(");
|
|
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//OSG_WARN<<"Warning:: cannot subload mip mapped texture from non mipmapped image."<<std::endl;
|
|
applyTexImage2D_load(state, target, image, inwidth, inheight,numMipmapLevels);
|
|
return;
|
|
}
|
|
}
|
|
|
|
if (pbo)
|
|
{
|
|
state.unbindPixelBufferObject();
|
|
}
|
|
#ifdef DO_TIMING
|
|
OSG_NOTICE<<"glTexSubImage2D "<<osg::Timer::instance()->delta_m(start_tick,osg::Timer::instance()->tick())<<"ms"<<std::endl;
|
|
#endif
|
|
|
|
if (needImageRescale)
|
|
{
|
|
// clean up the resized image.
|
|
delete [] data;
|
|
}
|
|
}
|
|
|
|
bool Texture::isHardwareMipmapGenerationEnabled(const State& state) const
|
|
{
|
|
if (_useHardwareMipMapGeneration)
|
|
{
|
|
unsigned int contextID = state.getContextID();
|
|
const Extensions* extensions = getExtensions(contextID,true);
|
|
|
|
if (extensions->isGenerateMipMapSupported())
|
|
{
|
|
return true;
|
|
}
|
|
|
|
const FBOExtensions* fbo_ext = FBOExtensions::instance(contextID,true);
|
|
|
|
if (fbo_ext->glGenerateMipmap)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Texture::GenerateMipmapMode Texture::mipmapBeforeTexImage(const State& state, bool hardwareMipmapOn) const
|
|
{
|
|
if (hardwareMipmapOn)
|
|
{
|
|
#if defined( OSG_GLES2_AVAILABLE ) || defined( OSG_GL3_AVAILABLE )
|
|
return GENERATE_MIPMAP;
|
|
#else
|
|
int width = getTextureWidth();
|
|
int height = getTextureHeight();
|
|
|
|
//quick bithack to determine whether width or height are non-power-of-two
|
|
if ((width & (width - 1)) || (height & (height - 1)))
|
|
{
|
|
//GL_GENERATE_MIPMAP_SGIS with non-power-of-two textures on NVIDIA hardware
|
|
//is extremely slow. Use glGenerateMipmapEXT() instead if supported.
|
|
if (_internalFormatType != SIGNED_INTEGER &&
|
|
_internalFormatType != UNSIGNED_INTEGER)
|
|
{
|
|
if (FBOExtensions::instance(state.getContextID(), true)->glGenerateMipmap)
|
|
{
|
|
return GENERATE_MIPMAP;
|
|
}
|
|
}
|
|
}
|
|
|
|
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
|
|
return GENERATE_MIPMAP_TEX_PARAMETER;
|
|
#endif
|
|
}
|
|
return GENERATE_MIPMAP_NONE;
|
|
}
|
|
|
|
void Texture::mipmapAfterTexImage(State& state, GenerateMipmapMode beforeResult) const
|
|
{
|
|
switch (beforeResult)
|
|
{
|
|
case GENERATE_MIPMAP:
|
|
{
|
|
unsigned int contextID = state.getContextID();
|
|
TextureObject* textureObject = getTextureObject(contextID);
|
|
if (textureObject)
|
|
{
|
|
osg::FBOExtensions* fbo_ext = osg::FBOExtensions::instance(contextID, true);
|
|
fbo_ext->glGenerateMipmap(textureObject->target());
|
|
}
|
|
break;
|
|
}
|
|
case GENERATE_MIPMAP_TEX_PARAMETER:
|
|
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_FALSE);
|
|
break;
|
|
case GENERATE_MIPMAP_NONE:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void Texture::generateMipmap(State& state) const
|
|
{
|
|
const unsigned int contextID = state.getContextID();
|
|
|
|
// get the texture object for the current contextID.
|
|
TextureObject* textureObject = getTextureObject(contextID);
|
|
|
|
// if not initialized before, then do nothing
|
|
if (textureObject == NULL) return;
|
|
|
|
_texMipmapGenerationDirtyList[contextID] = 0;
|
|
|
|
// if internal format does not provide automatic mipmap generation, then do manual allocation
|
|
if (_internalFormatType == SIGNED_INTEGER || _internalFormatType == UNSIGNED_INTEGER)
|
|
{
|
|
allocateMipmap(state);
|
|
return;
|
|
}
|
|
|
|
// get fbo extension which provides us with the glGenerateMipmapEXT function
|
|
osg::FBOExtensions* fbo_ext = osg::FBOExtensions::instance(state.getContextID(), true);
|
|
|
|
// check if the function is supported
|
|
if (fbo_ext->glGenerateMipmap)
|
|
{
|
|
textureObject->bind();
|
|
fbo_ext->glGenerateMipmap(textureObject->target());
|
|
|
|
// inform state that this texture is the current one bound.
|
|
state.haveAppliedTextureAttribute(state.getActiveTextureUnit(), this);
|
|
|
|
// if the function is not supported, then do manual allocation
|
|
}else
|
|
{
|
|
allocateMipmap(state);
|
|
}
|
|
|
|
}
|
|
|
|
void Texture::compileGLObjects(State& state) const
|
|
{
|
|
apply(state);
|
|
}
|
|
|
|
void Texture::resizeGLObjectBuffers(unsigned int maxSize)
|
|
{
|
|
_textureObjectBuffer.resize(maxSize);
|
|
}
|
|
|
|
void Texture::releaseGLObjects(State* state) const
|
|
{
|
|
// if (state) OSG_NOTICE<<"Texture::releaseGLObjects contextID="<<state->getContextID()<<std::endl;
|
|
// else OSG_NOTICE<<"Texture::releaseGLObjects no State "<<std::endl;
|
|
|
|
if (!state) const_cast<Texture*>(this)->dirtyTextureObject();
|
|
else
|
|
{
|
|
unsigned int contextID = state->getContextID();
|
|
if (_textureObjectBuffer[contextID].valid())
|
|
{
|
|
Texture::releaseTextureObject(contextID, _textureObjectBuffer[contextID].get());
|
|
|
|
_textureObjectBuffer[contextID] = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
Texture::Extensions* Texture::getExtensions(unsigned int contextID,bool createIfNotInitalized)
|
|
{
|
|
if (!s_extensions[contextID] && createIfNotInitalized) s_extensions[contextID] = new Extensions(contextID);
|
|
return s_extensions[contextID].get();
|
|
}
|
|
|
|
void Texture::setExtensions(unsigned int contextID,Extensions* extensions)
|
|
{
|
|
s_extensions[contextID] = extensions;
|
|
}
|
|
|
|
Texture::Extensions::Extensions(unsigned int contextID)
|
|
{
|
|
const char* version = (const char*) glGetString( GL_VERSION );
|
|
if (!version)
|
|
{
|
|
OSG_FATAL<<"Error: In Texture::Extensions::setupGLExtensions(..) OpenGL version test failed, requires valid graphics context."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
const char* renderer = (const char*) glGetString(GL_RENDERER);
|
|
std::string rendererString(renderer ? renderer : "");
|
|
|
|
bool builtInSupport = OSG_GLES2_FEATURES || OSG_GL3_FEATURES;
|
|
|
|
_isMultiTexturingSupported = builtInSupport || OSG_GLES1_FEATURES ||
|
|
isGLExtensionOrVersionSupported( contextID,"GL_ARB_multitexture", 1.3f) ||
|
|
isGLExtensionOrVersionSupported(contextID,"GL_EXT_multitexture", 1.3f);
|
|
|
|
_isTextureFilterAnisotropicSupported = isGLExtensionSupported(contextID,"GL_EXT_texture_filter_anisotropic");
|
|
|
|
_isTextureCompressionARBSupported = builtInSupport || isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_compression", 1.3f);
|
|
|
|
_isTextureCompressionS3TCSupported = isGLExtensionSupported(contextID,"GL_EXT_texture_compression_s3tc");
|
|
|
|
_isTextureMirroredRepeatSupported = builtInSupport ||
|
|
isGLExtensionOrVersionSupported(contextID,"GL_IBM_texture_mirrored_repeat", 1.4f) ||
|
|
isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_mirrored_repeat", 1.4f);
|
|
|
|
_isTextureEdgeClampSupported = builtInSupport ||
|
|
isGLExtensionOrVersionSupported(contextID,"GL_EXT_texture_edge_clamp", 1.2f) ||
|
|
isGLExtensionOrVersionSupported(contextID,"GL_SGIS_texture_edge_clamp", 1.2f);
|
|
|
|
_isTextureBorderClampSupported = OSG_GL3_FEATURES || isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_border_clamp", 1.3f);
|
|
|
|
_isGenerateMipMapSupported = builtInSupport || isGLExtensionOrVersionSupported(contextID,"GL_SGIS_generate_mipmap", 1.4f);
|
|
|
|
_isTextureMultisampledSupported = isGLExtensionSupported(contextID,"GL_ARB_texture_multisample");
|
|
|
|
_isShadowSupported = OSG_GL3_FEATURES || isGLExtensionSupported(contextID,"GL_ARB_shadow");
|
|
|
|
_isShadowAmbientSupported = isGLExtensionSupported(contextID,"GL_ARB_shadow_ambient");
|
|
|
|
_isClientStorageSupported = isGLExtensionSupported(contextID,"GL_APPLE_client_storage");
|
|
|
|
_isNonPowerOfTwoTextureNonMipMappedSupported = builtInSupport || isGLExtensionOrVersionSupported(contextID,"GL_ARB_texture_non_power_of_two", 2.0);
|
|
|
|
_isNonPowerOfTwoTextureMipMappedSupported = builtInSupport || _isNonPowerOfTwoTextureNonMipMappedSupported;
|
|
|
|
_isTextureIntegerEXTSupported = OSG_GL3_FEATURES || isGLExtensionSupported(contextID, "GL_EXT_texture_integer");
|
|
|
|
#if 0
|
|
if (rendererString.find("Radeon")!=std::string::npos || rendererString.find("RADEON")!=std::string::npos)
|
|
{
|
|
_isNonPowerOfTwoTextureMipMappedSupported = false;
|
|
OSG_INFO<<"Disabling _isNonPowerOfTwoTextureMipMappedSupported for ATI hardware."<<std::endl;
|
|
}
|
|
#endif
|
|
|
|
if (rendererString.find("GeForce FX")!=std::string::npos)
|
|
{
|
|
_isNonPowerOfTwoTextureMipMappedSupported = false;
|
|
OSG_INFO<<"Disabling _isNonPowerOfTwoTextureMipMappedSupported for GeForce FX hardware."<<std::endl;
|
|
}
|
|
|
|
glGetIntegerv(GL_MAX_TEXTURE_SIZE,&_maxTextureSize);
|
|
|
|
char *ptr;
|
|
if( (ptr = getenv("OSG_MAX_TEXTURE_SIZE")) != 0)
|
|
{
|
|
GLint osg_max_size = atoi(ptr);
|
|
|
|
if (osg_max_size<_maxTextureSize)
|
|
{
|
|
|
|
_maxTextureSize = osg_max_size;
|
|
}
|
|
}
|
|
|
|
if( _isMultiTexturingSupported )
|
|
{
|
|
#if defined(OSG_GLES2_AVAILABLE) || defined(OSG_GL3_AVAILABLE)
|
|
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS,&_numTextureUnits);
|
|
#else
|
|
if (osg::asciiToFloat(version)>=2.0)
|
|
{
|
|
glGetIntegerv(GL_MAX_TEXTURE_IMAGE_UNITS,&_numTextureUnits);
|
|
}
|
|
else
|
|
{
|
|
glGetIntegerv(GL_MAX_TEXTURE_UNITS,&_numTextureUnits);
|
|
}
|
|
#endif
|
|
}
|
|
else
|
|
{
|
|
_numTextureUnits = 1;
|
|
}
|
|
|
|
setGLExtensionFuncPtr(_glCompressedTexImage2D,"glCompressedTexImage2D","glCompressedTexImage2DARB");
|
|
setGLExtensionFuncPtr(_glCompressedTexSubImage2D,"glCompressedTexSubImage2D","glCompressedTexSubImage2DARB");
|
|
setGLExtensionFuncPtr(_glGetCompressedTexImage,"glGetCompressedTexImage","glGetCompressedTexImageARB");;
|
|
setGLExtensionFuncPtr(_glTexImage2DMultisample, "glTexImage2DMultisample", "glTexImage2DMultisampleARB");
|
|
|
|
setGLExtensionFuncPtr(_glTexParameterIiv, "glTexParameterIiv", "glTexParameterIivARB");
|
|
setGLExtensionFuncPtr(_glTexParameterIuiv, "glTexParameterIuiv", "glTexParameterIuivARB");
|
|
|
|
|
|
if (_glTexParameterIiv == NULL) setGLExtensionFuncPtr(_glTexParameterIiv, "glTexParameterIivEXT");
|
|
if (_glTexParameterIuiv == NULL) setGLExtensionFuncPtr(_glTexParameterIuiv, "glTexParameterIuivEXT");
|
|
|
|
_isTextureMaxLevelSupported = ( getGLVersionNumber() >= 1.2f );
|
|
}
|
|
|
|
|
|
}
|