1779 lines
65 KiB
C++
1779 lines
65 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 <OpenThreads/ScopedLock>
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#include <OpenThreads/Mutex>
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using namespace osg;
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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_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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ApplicationUsageProxy Texture_e0(ApplicationUsage::ENVIRONMENTAL_VARIABLE,"OSG_MAX_TEXTURE_SIZE","Set the maximum size of textures.");
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class TextureObjectManager : public osg::Referenced
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{
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public:
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TextureObjectManager():
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_expiryDelay(0.0)
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{
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// printf("Constructing TextureObjectManager\n");
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}
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~TextureObjectManager()
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{
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// printf("Destructing TextureObjectManager\n");
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}
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virtual Texture::TextureObject* generateTextureObject(unsigned int contextID,GLenum target);
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virtual Texture::TextureObject* generateTextureObject(unsigned int contextID,
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GLenum target,
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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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virtual Texture::TextureObject* reuseTextureObject(unsigned int contextID,
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GLenum target,
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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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inline Texture::TextureObject* reuseOrGenerateTextureObject(unsigned int contextID,
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GLenum target,
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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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Texture::TextureObject* to = reuseTextureObject(contextID,target,numMipmapLevels,internalFormat,width,height,depth,border);
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if (to) return to;
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else return generateTextureObject(contextID,target,numMipmapLevels,internalFormat,width,height,depth,border);
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}
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void addTextureObjects(Texture::TextureObjectListMap& toblm);
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void addTextureObjectsFrom(Texture& texture);
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void flushAllTextureObjects(unsigned int contextID);
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void discardAllTextureObjects(unsigned int contextID);
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void flushTextureObjects(unsigned int contextID,double currentTime, double& availableTime);
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void setExpiryDelay(double expiryDelay) { _expiryDelay = expiryDelay; }
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double getExpiryDelay() const { return _expiryDelay; }
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/** How long to keep unused texture objects before deletion. */
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double _expiryDelay;
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Texture::TextureObjectListMap _textureObjectListMap;
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// mutex to keep access serialized.
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OpenThreads::Mutex _mutex;
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};
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unsigned int Texture::s_numberTextureReusedLastInLastFrame = 0;
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unsigned int Texture::s_numberNewTextureInLastFrame = 0;
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unsigned int Texture::s_numberDeletedTextureInLastFrame = 0;
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unsigned int s_minimumNumberOfTextureObjectsToRetainInCache = 0;
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typedef buffered_value< ref_ptr<Texture::Extensions> > BufferedExtensions;
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static BufferedExtensions s_extensions;
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static ref_ptr<TextureObjectManager> s_textureObjectManager = new TextureObjectManager;
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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* TextureObjectManager::generateTextureObject(unsigned int /*contextID*/,GLenum target)
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{
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GLuint id;
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glGenTextures( 1L, &id );
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return new Texture::TextureObject(id,target);
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}
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static int s_number = 0;
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Texture::TextureObject* TextureObjectManager::generateTextureObject(unsigned int /*contextID*/,
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GLenum target,
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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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++s_number;
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++Texture::s_numberNewTextureInLastFrame;
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// notify(NOTICE)<<"creating new texture object "<<s_number<<std::endl;
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// no useable texture object found so return 0
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GLuint id;
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glGenTextures( 1L, &id );
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return new Texture::TextureObject(id,target,numMipmapLevels,internalFormat,width,height,depth,border);
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}
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Texture::TextureObject* TextureObjectManager::reuseTextureObject(unsigned int contextID,
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GLenum target,
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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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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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Texture::TextureObjectList& tol = _textureObjectListMap[contextID];
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for(Texture::TextureObjectList::iterator itr = tol.begin();
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itr != tol.end();
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++itr)
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{
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if ((*itr)->match(target,numMipmapLevels,internalFormat,width,height,depth,border))
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{
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// found usable texture object.
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Texture::TextureObject* textureObject = (*itr).release();
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tol.erase(itr);
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// notify(NOTICE)<<"reusing texture object "<<std::endl;
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++Texture::s_numberTextureReusedLastInLastFrame;
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return textureObject;
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}
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}
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return 0;
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}
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void TextureObjectManager::addTextureObjects(Texture::TextureObjectListMap& toblm)
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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for(unsigned int i=0; i< toblm.size(); ++i)
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{
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Texture::TextureObjectList& tol = _textureObjectListMap[i];
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tol.insert(tol.end(),toblm[i].begin(),toblm[i].end());
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}
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}
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void TextureObjectManager::addTextureObjectsFrom(Texture& texture)
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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texture.takeTextureObjects(_textureObjectListMap);
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}
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void TextureObjectManager::flushAllTextureObjects(unsigned int contextID)
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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Texture::TextureObjectList& tol = _textureObjectListMap[contextID];
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// osg::notify(osg::INFO)<<"Flushing texture objects num="<<tol.size()<<" contextID="<<contextID<<std::endl;
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for(Texture::TextureObjectList::iterator itr=tol.begin();
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itr!=tol.end();
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++itr)
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{
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// osg::notify(osg::NOTICE)<<" deleting texture object "<<(*itr)->_id<<std::endl;
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glDeleteTextures( 1L, &((*itr)->_id));
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}
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tol.clear();
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}
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void TextureObjectManager::discardAllTextureObjects(unsigned int contextID)
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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Texture::TextureObjectList& tol = _textureObjectListMap[contextID];
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tol.clear();
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}
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void TextureObjectManager::flushTextureObjects(unsigned int contextID,double currentTime, double& availableTime)
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{
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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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unsigned int numObjectsDeleted = 0;
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unsigned int maxNumObjectsToDelete = 4;
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const osg::Timer& timer = *osg::Timer::instance();
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osg::Timer_t start_tick = timer.tick();
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double elapsedTime = 0.0;
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unsigned int numTexturesDeleted = 0;
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{
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OpenThreads::ScopedLock<OpenThreads::Mutex> lock(_mutex);
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Texture::TextureObjectList& tol = _textureObjectListMap[contextID];
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// reset the time of any uninitialized objects.
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Texture::TextureObjectList::iterator itr;
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for(itr=tol.begin();
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itr!=tol.end();
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++itr)
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{
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if ((*itr)->_timeStamp==0.0) (*itr)->_timeStamp=currentTime;
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}
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double expiryTime = currentTime-_expiryDelay;
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for(itr=tol.begin();
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itr!=tol.end() && elapsedTime<availableTime && tol.size()>s_minimumNumberOfTextureObjectsToRetainInCache && numObjectsDeleted<maxNumObjectsToDelete;
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)
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{
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if ((*itr)->_timeStamp<=expiryTime)
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{
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--s_number;
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++Texture::s_numberDeletedTextureInLastFrame;
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glDeleteTextures( 1L, &((*itr)->_id));
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itr = tol.erase(itr);
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++numTexturesDeleted;
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++numObjectsDeleted;
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}
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else
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{
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++itr;
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}
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elapsedTime = timer.delta_s(start_tick,timer.tick());
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}
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}
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elapsedTime = timer.delta_s(start_tick,timer.tick());
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// if (numTexturesDeleted) notify(osg::NOTICE)<<"Number of Texture's deleted = "<<numTexturesDeleted<<" new total "<<s_number<<" elapsed time"<<elapsedTime<<std::endl;
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availableTime -= elapsedTime;
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}
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static TextureObjectManager* getTextureObjectManager()
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{
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return s_textureObjectManager.get();
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}
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Texture::TextureObject* Texture::generateTextureObject(unsigned int contextID,GLenum target)
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{
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if (getTextureObjectManager()) return getTextureObjectManager()->generateTextureObject(contextID,target);
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else return 0;
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}
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Texture::TextureObject* Texture::generateTextureObject(unsigned int contextID,
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GLenum target,
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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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if (getTextureObjectManager())
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return getTextureObjectManager()->reuseOrGenerateTextureObject(contextID,
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target,
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numMipmapLevels,
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internalFormat,
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width,
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height,
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depth,
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border);
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else
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return 0;
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}
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void Texture::flushAllDeletedTextureObjects(unsigned int contextID)
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{
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if (getTextureObjectManager()) getTextureObjectManager()->flushAllTextureObjects(contextID);
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}
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void Texture::discardAllDeletedTextureObjects(unsigned int contextID)
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{
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if (getTextureObjectManager()) getTextureObjectManager()->discardAllTextureObjects(contextID);
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}
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void Texture::flushDeletedTextureObjects(unsigned int contextID,double currentTime, double& availbleTime)
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{
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if (getTextureObjectManager()) getTextureObjectManager()->flushTextureObjects(contextID, currentTime, availbleTime);
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}
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Texture::Texture():
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_wrap_s(CLAMP),
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_wrap_t(CLAMP),
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_wrap_r(CLAMP),
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_min_filter(LINEAR_MIPMAP_LINEAR), // trilinear
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_mag_filter(LINEAR),
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_maxAnisotropy(1.0f),
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_useHardwareMipMapGeneration(true),
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_unrefImageDataAfterApply(false),
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_clientStorageHint(false),
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_resizeNonPowerOfTwoHint(true),
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_borderColor(0.0, 0.0, 0.0, 0.0),
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_borderWidth(0),
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_internalFormatMode(USE_IMAGE_DATA_FORMAT),
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_internalFormatType(NORMALIZED),
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_internalFormat(0),
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_sourceFormat(0),
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_sourceType(0),
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_use_shadow_comparison(false),
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_shadow_compare_func(LEQUAL),
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_shadow_texture_mode(LUMINANCE),
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_shadow_ambient(0)
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{
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}
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Texture::Texture(const Texture& text,const CopyOp& copyop):
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StateAttribute(text,copyop),
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_wrap_s(text._wrap_s),
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_wrap_t(text._wrap_t),
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_wrap_r(text._wrap_r),
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_min_filter(text._min_filter),
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_mag_filter(text._mag_filter),
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_maxAnisotropy(text._maxAnisotropy),
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_useHardwareMipMapGeneration(text._useHardwareMipMapGeneration),
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_unrefImageDataAfterApply(text._unrefImageDataAfterApply),
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_clientStorageHint(text._clientStorageHint),
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_resizeNonPowerOfTwoHint(text._resizeNonPowerOfTwoHint),
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_borderColor(text._borderColor),
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_borderWidth(text._borderWidth),
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_internalFormatMode(text._internalFormatMode),
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_internalFormatType(text._internalFormatType),
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_internalFormat(text._internalFormat),
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_sourceFormat(text._sourceFormat),
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_sourceType(text._sourceType),
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_use_shadow_comparison(text._use_shadow_comparison),
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_shadow_compare_func(text._shadow_compare_func),
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_shadow_texture_mode(text._shadow_texture_mode),
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_shadow_ambient(text._shadow_ambient)
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{
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}
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Texture::~Texture()
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{
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// delete old texture objects.
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dirtyTextureObject();
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}
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int Texture::compareTexture(const Texture& rhs) const
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{
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COMPARE_StateAttribute_Parameter(_wrap_s)
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COMPARE_StateAttribute_Parameter(_wrap_t)
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COMPARE_StateAttribute_Parameter(_wrap_r)
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COMPARE_StateAttribute_Parameter(_min_filter)
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COMPARE_StateAttribute_Parameter(_mag_filter)
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COMPARE_StateAttribute_Parameter(_maxAnisotropy)
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COMPARE_StateAttribute_Parameter(_useHardwareMipMapGeneration)
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COMPARE_StateAttribute_Parameter(_internalFormatMode)
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// only compare _internalFomat is it has alrady been set in both lhs, and rhs
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if (_internalFormat!=0 && rhs._internalFormat!=0)
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{
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COMPARE_StateAttribute_Parameter(_internalFormat)
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}
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COMPARE_StateAttribute_Parameter(_sourceFormat)
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COMPARE_StateAttribute_Parameter(_sourceType)
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COMPARE_StateAttribute_Parameter(_use_shadow_comparison)
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COMPARE_StateAttribute_Parameter(_shadow_compare_func)
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COMPARE_StateAttribute_Parameter(_shadow_texture_mode)
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COMPARE_StateAttribute_Parameter(_shadow_ambient)
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COMPARE_StateAttribute_Parameter(_unrefImageDataAfterApply)
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COMPARE_StateAttribute_Parameter(_clientStorageHint)
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COMPARE_StateAttribute_Parameter(_resizeNonPowerOfTwoHint)
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COMPARE_StateAttribute_Parameter(_internalFormatType);
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return 0;
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}
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int Texture::compareTextureObjects(const Texture& rhs) const
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{
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if (_textureObjectBuffer.size()<rhs._textureObjectBuffer.size()) return -1;
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if (rhs._textureObjectBuffer.size()<_textureObjectBuffer.size()) return 1;
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for(unsigned int i=0; i<_textureObjectBuffer.size(); ++i)
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{
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if (_textureObjectBuffer[i] < rhs._textureObjectBuffer[i]) return -1;
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else if (rhs._textureObjectBuffer[i] < _textureObjectBuffer[i]) return 1;
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}
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return 0;
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}
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void Texture::setWrap(WrapParameter which, WrapMode wrap)
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{
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switch( which )
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{
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case WRAP_S : _wrap_s = wrap; dirtyTextureParameters(); break;
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case WRAP_T : _wrap_t = wrap; dirtyTextureParameters(); break;
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case WRAP_R : _wrap_r = wrap; dirtyTextureParameters(); break;
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default : notify(WARN)<<"Error: invalid 'which' passed Texture::setWrap("<<(unsigned int)which<<","<<(unsigned int)wrap<<")"<<std::endl; break;
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}
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}
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Texture::WrapMode Texture::getWrap(WrapParameter which) const
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{
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switch( which )
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{
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case WRAP_S : return _wrap_s;
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case WRAP_T : return _wrap_t;
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case WRAP_R : return _wrap_r;
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default : notify(WARN)<<"Error: invalid 'which' passed Texture::getWrap(which)"<<std::endl; return _wrap_s;
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}
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}
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void Texture::setFilter(FilterParameter which, FilterMode filter)
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{
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switch( which )
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{
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case MIN_FILTER : _min_filter = filter; dirtyTextureParameters(); break;
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case MAG_FILTER : _mag_filter = filter; dirtyTextureParameters(); break;
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default : notify(WARN)<<"Error: invalid 'which' passed Texture::setFilter("<<(unsigned int)which<<","<<(unsigned int)filter<<")"<<std::endl; break;
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}
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}
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Texture::FilterMode Texture::getFilter(FilterParameter which) const
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{
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switch( which )
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{
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case MIN_FILTER : return _min_filter;
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case MAG_FILTER : return _mag_filter;
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default : notify(WARN)<<"Error: invalid 'which' passed Texture::getFilter(which)"<< std::endl; return _min_filter;
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}
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}
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void Texture::setMaxAnisotropy(float anis)
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{
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if (_maxAnisotropy!=anis)
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{
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_maxAnisotropy = anis;
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dirtyTextureParameters();
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}
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}
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/** Force a recompile on next apply() of associated OpenGL texture objects.*/
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void Texture::dirtyTextureObject()
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{
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if (getTextureObjectManager()) getTextureObjectManager()->addTextureObjectsFrom(*this);
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}
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|
|
void Texture::takeTextureObjects(Texture::TextureObjectListMap& toblm)
|
|
{
|
|
for(unsigned int i = 0; i<_textureObjectBuffer.size();++i)
|
|
{
|
|
if (_textureObjectBuffer[i].valid())
|
|
{
|
|
//notify(INFO) << "releasing texture "<<toblm[i].size()<<std::endl;
|
|
toblm[i].push_back(_textureObjectBuffer[i]);
|
|
}
|
|
}
|
|
_textureObjectBuffer.setAllElementsTo(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;
|
|
computeInternalFormatType();
|
|
|
|
//osg::notify(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
|
|
{
|
|
notify(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;
|
|
}
|
|
|
|
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())
|
|
{
|
|
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 texture are not supported by the shadow
|
|
if (extensions->isShadowSupported() && target == GL_TEXTURE_2D &&
|
|
_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;
|
|
|
|
bool useHardwareMipMapGeneration = !image.isMipmap() && isHardwareMipmapGenerationEnabled(state);
|
|
|
|
if( _min_filter == LINEAR || _min_filter == NEAREST || useHardwareMipMapGeneration )
|
|
{
|
|
numMipmapLevels = 1;
|
|
}
|
|
else if( image.isMipmap() )
|
|
{
|
|
numMipmapLevels = image.getNumMipmapLevels();
|
|
}
|
|
else
|
|
{
|
|
numMipmapLevels = 0;
|
|
for( ; (width || height) ;++numMipmapLevels)
|
|
{
|
|
|
|
if (width == 0)
|
|
width = 1;
|
|
if (height == 0)
|
|
height = 1;
|
|
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
}
|
|
|
|
// osg::notify(osg::NOTICE)<<"Texture::computeRequiredTextureDimensions() image.s() "<<image.s()<<" image.t()="<<image.t()<<" width="<<width<<" height="<<height<<" numMipmapLevels="<<numMipmapLevels<<std::endl;
|
|
// osg::notify(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::notify(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::notify(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);
|
|
glTexParameterf(GL_TEXTURE_2D,GL_TEXTURE_PRIORITY,0.0f);
|
|
|
|
#ifdef GL_TEXTURE_STORAGE_HINT_APPLE
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_STORAGE_HINT_APPLE , GL_STORAGE_CACHED_APPLE);
|
|
#endif
|
|
}
|
|
|
|
unsigned char* data = (unsigned char*)image->data();
|
|
|
|
// osg::notify(osg::NOTICE)<<"inwidth="<<inwidth<<" inheight="<<inheight<<" image->getFileName()"<<image->getFileName()<<std::endl;
|
|
|
|
bool needImageRescale = inwidth!=image->s() || inheight!=image->t();
|
|
if (needImageRescale)
|
|
{
|
|
|
|
// resize the image to power of two.
|
|
|
|
if (image->isMipmap())
|
|
{
|
|
notify(WARN)<<"Warning:: Mipmapped osg::Image not a power of two, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
else if (compressed_image)
|
|
{
|
|
notify(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)
|
|
{
|
|
notify(WARN)<<"Warning:: Not enough memory to resize image, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
if (!image->getFileName().empty()) notify(NOTICE) << "Scaling image '"<<image->getFileName()<<"' from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl;
|
|
else notify(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);
|
|
|
|
}
|
|
|
|
bool mipmappingRequired = _min_filter != LINEAR && _min_filter != NEAREST;
|
|
bool useHardwareMipMapGeneration = mipmappingRequired && (!image->isMipmap() && isHardwareMipmapGenerationEnabled(state));
|
|
bool useGluBuildMipMaps = mipmappingRequired && (!useHardwareMipMapGeneration && !image->isMipmap());
|
|
|
|
unsigned char* dataMinusOffset = 0;
|
|
unsigned char* dataPlusOffset = 0;
|
|
|
|
const PixelBufferObject* pbo = image->getPixelBufferObject();
|
|
if (pbo && pbo->isPBOSupported(contextID) && !needImageRescale && !useGluBuildMipMaps)
|
|
{
|
|
state.bindPixelBufferObject(pbo);
|
|
dataMinusOffset = data;
|
|
dataPlusOffset = reinterpret_cast<unsigned char*>(pbo->offset());
|
|
#ifdef DO_TIMING
|
|
osg::notify(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(),
|
|
data -dataMinusOffset+dataPlusOffset);
|
|
|
|
}
|
|
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,
|
|
data-dataMinusOffset+dataPlusOffset);
|
|
}
|
|
|
|
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(),
|
|
image->getMipmapData(k)-dataMinusOffset+dataPlusOffset);
|
|
|
|
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, image->getMipmapData(k)-dataMinusOffset+dataPlusOffset);
|
|
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
|
|
if ( !compressed_image)
|
|
{
|
|
numMipmapLevels = 0;
|
|
|
|
gluBuild2DMipmaps( target, _internalFormat,
|
|
inwidth,inheight,
|
|
(GLenum)image->getPixelFormat(), (GLenum)image->getDataType(),
|
|
data);
|
|
|
|
int width = image->s();
|
|
int height = image->t();
|
|
for( numMipmapLevels = 0 ; (width || height) ; ++numMipmapLevels)
|
|
{
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
notify(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::notify(osg::NOTICE)<<"glTexImage2D "<<delta_time<<"ms total "<<s_total_time<<"ms"<<std::endl;
|
|
#endif
|
|
|
|
if (needImageRescale)
|
|
{
|
|
// clean up the resized image.
|
|
delete [] data;
|
|
}
|
|
|
|
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::notify(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)
|
|
{
|
|
|
|
// resize the image to power of two.
|
|
|
|
if (image->isMipmap())
|
|
{
|
|
notify(WARN)<<"Warning:: Mipmapped osg::Image not a power of two, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
else if (compressed_image)
|
|
{
|
|
notify(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)
|
|
{
|
|
notify(WARN)<<"Warning:: Not enough memory to resize image, cannot apply to texture."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
if (!image->getFileName().empty()) notify(NOTICE) << "Scaling image '"<<image->getFileName()<<"' from ("<<image->s()<<","<<image->t()<<") to ("<<inwidth<<","<<inheight<<")"<<std::endl;
|
|
else notify(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);
|
|
|
|
}
|
|
|
|
|
|
bool mipmappingRequired = _min_filter != LINEAR && _min_filter != NEAREST;
|
|
bool useHardwareMipMapGeneration = mipmappingRequired && (!image->isMipmap() && isHardwareMipmapGenerationEnabled(state));
|
|
bool useGluBuildMipMaps = mipmappingRequired && (!useHardwareMipMapGeneration && !image->isMipmap());
|
|
|
|
unsigned char* dataMinusOffset = 0;
|
|
unsigned char* dataPlusOffset = 0;
|
|
|
|
const PixelBufferObject* pbo = image->getPixelBufferObject();
|
|
if (pbo && pbo->isPBOSupported(contextID) && !needImageRescale && !useGluBuildMipMaps)
|
|
{
|
|
state.bindPixelBufferObject(pbo);
|
|
dataMinusOffset = data;
|
|
dataPlusOffset = reinterpret_cast<unsigned char*>(pbo->offset());
|
|
#ifdef DO_TIMING
|
|
osg::notify(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(),
|
|
data - dataMinusOffset + dataPlusOffset);
|
|
|
|
}
|
|
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,
|
|
data - dataMinusOffset + dataPlusOffset );
|
|
}
|
|
|
|
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(),
|
|
image->getMipmapData(k) - dataMinusOffset + dataPlusOffset);
|
|
|
|
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,
|
|
image->getMipmapData(k) - dataMinusOffset + dataPlusOffset);
|
|
|
|
//state.checkGLErrors("after extensions->glCompressedTexSubImage2D(");
|
|
|
|
width >>= 1;
|
|
height >>= 1;
|
|
}
|
|
|
|
}
|
|
}
|
|
else
|
|
{
|
|
//notify(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::notify(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->glGenerateMipmapEXT)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
Texture::GenerateMipmapMode Texture::mipmapBeforeTexImage(const State& state, bool hardwareMipmapOn) const
|
|
{
|
|
if (hardwareMipmapOn)
|
|
{
|
|
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)->glGenerateMipmapEXT)
|
|
{
|
|
return GENERATE_MIPMAP;
|
|
}
|
|
}
|
|
}
|
|
|
|
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP_SGIS, GL_TRUE);
|
|
return GENERATE_MIPMAP_TEX_PARAMETER;
|
|
}
|
|
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->glGenerateMipmapEXT(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->glGenerateMipmapEXT)
|
|
{
|
|
textureObject->bind();
|
|
fbo_ext->glGenerateMipmapEXT(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);
|
|
}
|
|
|
|
}
|
|
|
|
|
|
///////////////////////////////////////////////////////////////////////////////////////////////
|
|
// Static map to manage the deletion of texture objects are the right time.
|
|
//////////////////////////////////////////////////////////////////////////////////////////////
|
|
#include <map>
|
|
#include <set>
|
|
|
|
|
|
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::notify(osg::NOTICE)<<"Texture::releaseGLObjects contextID="<<state->getContextID()<<std::endl;
|
|
// else osg::notify(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() && getTextureObjectManager())
|
|
{
|
|
OpenThreads::ScopedLock<OpenThreads::Mutex> lock(getTextureObjectManager()->_mutex);
|
|
|
|
getTextureObjectManager()->_textureObjectListMap[contextID].push_back(_textureObjectBuffer[contextID]);
|
|
_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)
|
|
{
|
|
setupGLExtensions(contextID);
|
|
}
|
|
|
|
Texture::Extensions::Extensions(const Extensions& rhs):
|
|
Referenced()
|
|
{
|
|
_isMultiTexturingSupported = rhs._isMultiTexturingSupported;
|
|
_isTextureFilterAnisotropicSupported = rhs._isTextureFilterAnisotropicSupported;
|
|
_isTextureCompressionARBSupported = rhs._isTextureCompressionARBSupported;
|
|
_isTextureCompressionS3TCSupported = rhs._isTextureCompressionS3TCSupported;
|
|
_isTextureMirroredRepeatSupported = rhs._isTextureMirroredRepeatSupported;
|
|
_isTextureEdgeClampSupported = rhs._isTextureEdgeClampSupported;
|
|
_isTextureBorderClampSupported = rhs._isTextureBorderClampSupported;
|
|
_isGenerateMipMapSupported = rhs._isGenerateMipMapSupported;
|
|
|
|
_maxTextureSize = rhs._maxTextureSize;
|
|
|
|
_glCompressedTexImage2D = rhs._glCompressedTexImage2D;
|
|
|
|
_isShadowSupported = rhs._isShadowSupported;
|
|
_isShadowAmbientSupported = rhs._isShadowAmbientSupported;
|
|
|
|
_isClientStorageSupported = rhs._isClientStorageSupported;
|
|
|
|
_isNonPowerOfTwoTextureMipMappedSupported = rhs._isNonPowerOfTwoTextureMipMappedSupported;
|
|
_isNonPowerOfTwoTextureNonMipMappedSupported = rhs._isNonPowerOfTwoTextureNonMipMappedSupported;
|
|
|
|
_isTextureIntegerEXTSupported = rhs._isTextureIntegerEXTSupported;
|
|
}
|
|
|
|
void Texture::Extensions::lowestCommonDenominator(const Extensions& rhs)
|
|
{
|
|
if (!rhs._isMultiTexturingSupported) _isMultiTexturingSupported = false;
|
|
|
|
if (!rhs._isTextureFilterAnisotropicSupported) _isTextureFilterAnisotropicSupported = false;
|
|
if (!rhs._isTextureMirroredRepeatSupported) _isTextureMirroredRepeatSupported = false;
|
|
if (!rhs._isTextureEdgeClampSupported) _isTextureEdgeClampSupported = false;
|
|
if (!rhs._isTextureBorderClampSupported) _isTextureBorderClampSupported = false;
|
|
|
|
if (!rhs._isTextureCompressionARBSupported) _isTextureCompressionARBSupported = false;
|
|
if (!rhs._isTextureCompressionS3TCSupported) _isTextureCompressionS3TCSupported = false;
|
|
|
|
if (!rhs._isGenerateMipMapSupported) _isGenerateMipMapSupported = false;
|
|
|
|
if (rhs._maxTextureSize<_maxTextureSize) _maxTextureSize = rhs._maxTextureSize;
|
|
if (rhs._numTextureUnits<_numTextureUnits) _numTextureUnits = rhs._numTextureUnits;
|
|
|
|
if (!rhs._glCompressedTexImage2D) _glCompressedTexImage2D = 0;
|
|
if (!rhs._glCompressedTexSubImage2D) _glCompressedTexSubImage2D = 0;
|
|
if (!rhs._glGetCompressedTexImage) _glGetCompressedTexImage = 0;
|
|
|
|
if (!rhs._isShadowSupported) _isShadowSupported = false;
|
|
if (!rhs._isShadowAmbientSupported) _isShadowAmbientSupported = false;
|
|
|
|
if (!rhs._isClientStorageSupported) _isClientStorageSupported = false;
|
|
|
|
if (!rhs._isNonPowerOfTwoTextureMipMappedSupported) _isNonPowerOfTwoTextureMipMappedSupported = false;
|
|
if (!rhs._isNonPowerOfTwoTextureNonMipMappedSupported) _isNonPowerOfTwoTextureNonMipMappedSupported = false;
|
|
|
|
if (!rhs._isTextureIntegerEXTSupported) _isTextureIntegerEXTSupported = false;
|
|
}
|
|
|
|
void Texture::Extensions::setupGLExtensions(unsigned int contextID)
|
|
{
|
|
const char* version = (const char*) glGetString( GL_VERSION );
|
|
if (!version)
|
|
{
|
|
osg::notify(osg::FATAL)<<"Error: In Texture::Extensions::setupGLExtensions(..) OpenGL version test failed, requires valid graphics context."<<std::endl;
|
|
return;
|
|
}
|
|
|
|
|
|
float glVersion = asciiToFloat( (const char *)version );
|
|
const char* renderer = (const char*) glGetString(GL_RENDERER);
|
|
std::string rendererString(renderer ? renderer : "");
|
|
|
|
_isMultiTexturingSupported = ( glVersion >= 1.3 ) ||
|
|
isGLExtensionSupported(contextID,"GL_ARB_multitexture") ||
|
|
isGLExtensionSupported(contextID,"GL_EXT_multitexture");
|
|
_isTextureFilterAnisotropicSupported = isGLExtensionSupported(contextID,"GL_EXT_texture_filter_anisotropic");
|
|
_isTextureCompressionARBSupported = ( glVersion >= 1.3 ) ||
|
|
isGLExtensionSupported(contextID,"GL_ARB_texture_compression");
|
|
_isTextureCompressionS3TCSupported = isGLExtensionSupported(contextID,"GL_EXT_texture_compression_s3tc");
|
|
_isTextureMirroredRepeatSupported = ( glVersion >= 1.4 ) ||
|
|
isGLExtensionSupported(contextID,"GL_IBM_texture_mirrored_repeat") ||
|
|
isGLExtensionSupported(contextID,"GL_ARB_texture_mirrored_repeat");
|
|
_isTextureEdgeClampSupported = ( glVersion >= 1.2 ) ||
|
|
isGLExtensionSupported(contextID,"GL_EXT_texture_edge_clamp") ||
|
|
isGLExtensionSupported(contextID,"GL_SGIS_texture_edge_clamp");
|
|
_isTextureBorderClampSupported = ( glVersion >= 1.3 ) ||
|
|
isGLExtensionSupported(contextID,"GL_ARB_texture_border_clamp");
|
|
_isGenerateMipMapSupported = (strncmp((const char*)glGetString(GL_VERSION),"1.4",3)>=0) ||
|
|
isGLExtensionSupported(contextID,"GL_SGIS_generate_mipmap");
|
|
_isShadowSupported = isGLExtensionSupported(contextID,"GL_ARB_shadow");
|
|
_isShadowAmbientSupported = isGLExtensionSupported(contextID,"GL_ARB_shadow_ambient");
|
|
|
|
_isClientStorageSupported = isGLExtensionSupported(contextID,"GL_APPLE_client_storage");
|
|
|
|
_isNonPowerOfTwoTextureNonMipMappedSupported = ( glVersion >= 2.0 ) ||
|
|
isGLExtensionSupported(contextID,"GL_ARB_texture_non_power_of_two");
|
|
|
|
_isNonPowerOfTwoTextureMipMappedSupported = _isNonPowerOfTwoTextureNonMipMappedSupported;
|
|
|
|
_isTextureIntegerEXTSupported = isGLExtensionSupported(contextID, "GL_EXT_texture_integer");
|
|
|
|
if (rendererString.find("Radeon")!=std::string::npos || rendererString.find("RADEON")!=std::string::npos)
|
|
{
|
|
_isNonPowerOfTwoTextureMipMappedSupported = false;
|
|
osg::notify(osg::INFO)<<"Disabling _isNonPowerOfTwoTextureMipMappedSupported for ATI hardware."<<std::endl;
|
|
}
|
|
|
|
if (rendererString.find("GeForce FX")!=std::string::npos)
|
|
{
|
|
_isNonPowerOfTwoTextureMipMappedSupported = false;
|
|
osg::notify(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 )
|
|
{
|
|
glGetIntegerv(GL_MAX_TEXTURE_UNITS,&_numTextureUnits);
|
|
}
|
|
else
|
|
{
|
|
_numTextureUnits = 1;
|
|
}
|
|
|
|
setGLExtensionFuncPtr(_glCompressedTexImage2D,"glCompressedTexImage2D","glCompressedTexImage2DARB");
|
|
setGLExtensionFuncPtr(_glCompressedTexSubImage2D,"glCompressedTexSubImage2D","glCompressedTexSubImage2DARB");
|
|
setGLExtensionFuncPtr(_glGetCompressedTexImage,"glGetCompressedTexImage","glGetCompressedTexImageARB");;
|
|
|
|
setGLExtensionFuncPtr(_glTexParameterIiv, "glTexParameterIiv", "glTexParameterIivARB");
|
|
setGLExtensionFuncPtr(_glTexParameterIuiv, "glTexParameterIuiv", "glTexParameterIuivARB");
|
|
|
|
if (_glTexParameterIiv == NULL) setGLExtensionFuncPtr(_glTexParameterIiv, "glTexParameterIivEXT");
|
|
if (_glTexParameterIuiv == NULL) setGLExtensionFuncPtr(_glTexParameterIuiv, "glTexParameterIuivEXT");
|
|
}
|
|
|
|
|
|
void Texture::Extensions::glTexParameterIiv(GLenum target, GLenum pname, const GLint* data) const
|
|
{
|
|
if (_glTexParameterIiv)
|
|
{
|
|
_glTexParameterIiv(target, pname, data);
|
|
}
|
|
else
|
|
{
|
|
notify(WARN)<<"Error: glTexParameterIiv not supported by OpenGL driver"<<std::endl;
|
|
}
|
|
}
|
|
|
|
void Texture::Extensions::glTexParameterIuiv(GLenum target, GLenum pname, const GLuint* data) const
|
|
{
|
|
if (_glTexParameterIuiv)
|
|
{
|
|
_glTexParameterIuiv(target, pname, data);
|
|
}
|
|
else
|
|
{
|
|
notify(WARN)<<"Error: glTexParameterIuiv not supported by OpenGL driver"<<std::endl;
|
|
}
|
|
}
|
|
|
|
void Texture::Extensions::glCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border, GLsizei imageSize, const GLvoid *data) const
|
|
{
|
|
if (_glCompressedTexImage2D)
|
|
{
|
|
_glCompressedTexImage2D(target, level, internalformat, width, height, border, imageSize, data);
|
|
}
|
|
else
|
|
{
|
|
notify(WARN)<<"Error: glCompressedTexImage2D not supported by OpenGL driver"<<std::endl;
|
|
}
|
|
|
|
}
|
|
|
|
void Texture::Extensions::glCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLsizei imageSize, const GLvoid *data) const
|
|
{
|
|
if (_glCompressedTexSubImage2D)
|
|
{
|
|
_glCompressedTexSubImage2D(target, level, xoffset, yoffset, width, height, format, imageSize, data);
|
|
}
|
|
else
|
|
{
|
|
notify(WARN)<<"Error: glCompressedTexImage2D not supported by OpenGL driver"<<std::endl;
|
|
}
|
|
|
|
}
|
|
void Texture::Extensions::glGetCompressedTexImage(GLenum target, GLint level, GLvoid *data) const
|
|
{
|
|
if (_glGetCompressedTexImage)
|
|
{
|
|
_glGetCompressedTexImage(target, level, data);
|
|
}
|
|
else
|
|
{
|
|
notify(WARN)<<"Error: glGetCompressedTexImage not supported by OpenGL driver"<<std::endl;
|
|
}
|
|
}
|
|
|