MOved SampleMaski::Extensions into osg::GL2Extensions
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14577 16af8721-9629-0410-8352-f15c8da7e697
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@ -119,21 +119,5 @@ int main(int argc, char *argv[])
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// create the windows and run the threads.
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viewer.realize();
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// now check to see if texture cube map is supported.
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for(unsigned int contextID = 0;
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contextID<osg::DisplaySettings::instance()->getMaxNumberOfGraphicsContexts();
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++contextID)
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{
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osg::TextureCubeMap::Extensions* tcmExt = osg::TextureCubeMap::getExtensions(contextID,false);
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if (tcmExt)
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{
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if (!tcmExt->isCubeMapSupported())
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{
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std::cout<<"Warning: texture_cube_map not supported by OpenGL drivers, unable to run application."<<std::endl;
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return 1;
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}
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}
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}
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return viewer.run();
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}
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@ -805,33 +805,8 @@ class OSG_EXPORT GL2Extensions : public osg::Referenced
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void (GL_APIENTRY * glMultiTexCoord2dv) (GLenum target,const GLdouble* coord);
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void (GL_APIENTRY * glMultiTexCoord3dv) (GLenum target,const GLdouble* coord);
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void (GL_APIENTRY * glMultiTexCoord4dv) (GLenum target,const GLdouble* coord);
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#if 0
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void (GL_APIENTRY * glVertexAttrib1s) (unsigned int index, GLshort s);
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void (GL_APIENTRY * glVertexAttrib1f) (unsigned int index, GLfloat f);
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void (GL_APIENTRY * glVertexAttrib1d) (unsigned int index, GLdouble f);
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void (GL_APIENTRY * glVertexAttrib2fv) (unsigned int index, const GLfloat * v);
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void (GL_APIENTRY * glVertexAttrib3fv) (unsigned int index, const GLfloat * v);
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void (GL_APIENTRY * glVertexAttrib4fv) (unsigned int index, const GLfloat * v);
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void (GL_APIENTRY * glVertexAttrib2dv) (unsigned int index, const GLdouble * v);
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void (GL_APIENTRY * glVertexAttrib3dv) (unsigned int index, const GLdouble * v);
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void (GL_APIENTRY * glVertexAttrib4dv) (unsigned int index, const GLdouble * v);
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void (GL_APIENTRY * glVertexAttrib4ubv) (unsigned int index, const GLubyte * v);
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void (GL_APIENTRY * glVertexAttrib4Nubv) (unsigned int index, const GLubyte * v);
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void (GL_APIENTRY * glGenBuffers) (GLsizei n, GLuint *buffers);
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void (GL_APIENTRY * glBindBuffer (GLenum target, GLuint buffer);
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void (GL_APIENTRY * glBufferData (GLenum target, GLsizeiptr size, const GLvoid *data, GLenum usage);
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void (GL_APIENTRY * glBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, const GLvoid *data);
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void (GL_APIENTRY * glDeleteBuffers (GLsizei n, const GLuint *buffers);
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GLboolean (GL_APIENTRY * glIsBuffer (GLuint buffer);
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void (GL_APIENTRY * glGetBufferSubData (GLenum target, GLintptr offset, GLsizeiptr size, GLvoid *data);
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GLvoid* (GL_APIENTRY * glMapBuffer (GLenum target, GLenum access);
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GLboolean (GL_APIENTRY * glUnmapBuffer (GLenum target);
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void (GL_APIENTRY * glGetBufferParameteriv (GLenum target, GLenum pname, GLint *params);
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void (GL_APIENTRY * glGetBufferPointerv (GLenum target, GLenum pname, GLvoid* *params);
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#endif
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// Occlusion Query extensions
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void (GL_APIENTRY * glGenOcclusionQueries) ( GLsizei n, GLuint *ids );
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void (GL_APIENTRY * glDeleteOcclusionQueries) ( GLsizei n, const GLuint *ids );
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GLboolean (GL_APIENTRY * glIsOcclusionQuery) ( GLuint id );
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@ -852,6 +827,14 @@ class OSG_EXPORT GL2Extensions : public osg::Referenced
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void (GL_APIENTRY * glGetQueryObjectui64v) (GLuint id, GLenum pname, GLuint64 *params);
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void (GL_APIENTRY * glGetInteger64v) (GLenum pname, GLint64 *params);
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// SampleMaski functionality
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bool isOpenGL32upported;
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bool isTextureMultisampleSupported;
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bool isSampleMaskiSupported;
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void (GL_APIENTRY * glSampleMaski) (GLuint maskNumber, GLbitfield mask);
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};
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}
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@ -41,47 +41,6 @@ class OSG_EXPORT SampleMaski : public StateAttribute
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virtual void apply(State& state) const;
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public:
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/** Extensions class which encapsulates the querying of extensions and
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* associated function pointers, and provide convenience wrappers to
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* check for the extensions or use the associated functions.
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*/
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class OSG_EXPORT Extensions : public osg::Referenced
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{
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public:
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Extensions(unsigned int contextID);
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Extensions(const Extensions& rhs);
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void lowestCommonDenominator(const Extensions& rhs);
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void setupGLExtensions(unsigned int contextID);
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bool isOpenGL32upported() const { return _isOpenGL32upported; }
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bool isTextureMultisampleSupported() const { return _isTextureMultisampleSupported; }
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bool isSampleMaskiSupported() const { return _isSampleMaskiSupported; }
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void glSampleMaski(GLuint maskNumber, GLbitfield mask) const;
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protected:
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~Extensions() {}
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bool _isOpenGL32upported;
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bool _isTextureMultisampleSupported;
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bool _isSampleMaskiSupported;
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typedef void (GL_APIENTRY * SampleMaski) ( GLuint maskNumber, GLbitfield mask );
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SampleMaski _glSampleMaski;
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};
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static Extensions* getExtensions(unsigned int contextID,bool createIfNotInitalized);
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static void setExtensions(unsigned int contextID,Extensions* extensions);
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protected:
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virtual ~SampleMaski();
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@ -388,6 +388,15 @@ GL2Extensions::GL2Extensions(unsigned int contextID)
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setGLExtensionFuncPtr(glQueryCounter, "glQueryCounter");
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setGLExtensionFuncPtr(glGetInteger64v, "glGetInteger64v");
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// SampleMaski functionality
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isTextureMultisampleSupported = isGLExtensionSupported(contextID, "GL_ARB_texture_multisample");
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isOpenGL32upported = getGLVersionNumber() >= 3.2;
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// function pointers
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setGLExtensionFuncPtr(glSampleMaski, "glSampleMaski");
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// protect against buggy drivers (maybe not necessary)
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isSampleMaskiSupported = glSampleMaski!=0;
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}
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@ -51,10 +51,9 @@ int SampleMaski::compare(const StateAttribute& sa) const
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void SampleMaski::apply(State& state) const
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{
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// get "per-context" extensions
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const unsigned int contextID = state.getContextID();
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const Extensions* extensions = getExtensions(contextID,true);
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const GL2Extensions* extensions = state.get<GL2Extensions>();
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if ( (extensions->isTextureMultisampleSupported()) || (extensions->isOpenGL32upported()) || (extensions->isSampleMaskiSupported()) )
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if ( (extensions->isTextureMultisampleSupported) || (extensions->isOpenGL32upported) || (extensions->isSampleMaskiSupported) )
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{
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extensions->glSampleMaski(0u, _sampleMask[0u]);
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//For now we use only 32-bit Sample mask
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@ -62,82 +61,6 @@ void SampleMaski::apply(State& state) const
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return;
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}
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OSG_WARN << "SampleMaski failed as the required graphics capabilities were\n"
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" not found (contextID " << contextID << "). OpenGL 3.2 or \n"
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" ARB_texture_multisample extension is required." << std::endl;
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OSG_WARN << "SampleMaski failed as the required graphics capabilities were not found. \n"
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"OpenGL 3.2 or ARB_texture_multisample extension is required." << std::endl;
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}
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typedef buffered_value< ref_ptr<SampleMaski::Extensions> > BufferedExtensions;
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static BufferedExtensions s_extensions;
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SampleMaski::Extensions* SampleMaski::getExtensions(unsigned int contextID,bool createIfNotInitalized)
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{
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if (!s_extensions[contextID] && createIfNotInitalized) s_extensions[contextID] = new Extensions(contextID);
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return s_extensions[contextID].get();
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}
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void SampleMaski::setExtensions(unsigned int contextID,Extensions* extensions)
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{
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s_extensions[contextID] = extensions;
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}
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SampleMaski::Extensions::Extensions(unsigned int contextID)
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{
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setupGLExtensions(contextID);
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}
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SampleMaski::Extensions::Extensions(const Extensions& rhs):
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Referenced()
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{
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_isTextureMultisampleSupported = rhs._isTextureMultisampleSupported;
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_isOpenGL32upported = rhs._isOpenGL32upported;
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_isSampleMaskiSupported = rhs._isSampleMaskiSupported;
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_glSampleMaski = rhs._glSampleMaski;
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}
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void SampleMaski::Extensions::lowestCommonDenominator(const Extensions& rhs)
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{
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if (!rhs._isTextureMultisampleSupported) _isTextureMultisampleSupported = false;
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if (!rhs._isOpenGL32upported) _isOpenGL32upported = false;
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if (!rhs._isSampleMaskiSupported) _isSampleMaskiSupported = false;
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if (!rhs._glSampleMaski) _glSampleMaski = NULL;
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}
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void SampleMaski::Extensions::setupGLExtensions(unsigned int contextID)
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{
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// extension support
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_isTextureMultisampleSupported = isGLExtensionSupported(contextID, "GL_ARB_texture_multisample");
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_isOpenGL32upported = getGLVersionNumber() >= 3.2;
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// function pointers
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setGLExtensionFuncPtr(_glSampleMaski, "glSampleMaski");
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// protect against buggy drivers (maybe not necessary)
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if (!_glSampleMaski) _isSampleMaskiSupported = false;
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// notify
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if( _isOpenGL32upported )
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{
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OSG_INFO << "SampleMaski is going to use OpenGL 3.2 API (contextID " << contextID << ")." << std::endl;
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}
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else if( _isTextureMultisampleSupported )
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{
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OSG_INFO << "SampleMaski is going to use GL_ARB_texture_multisample extension (contextID " << contextID << ")." << std::endl;
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}
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else
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{
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OSG_INFO << "SampleMaski did not found required graphics capabilities\n"
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" (contextID " << contextID << "). OpenGL 3.2 or \n"
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" GL_ARB_texture_multisample extension is required." << std::endl;
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}
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}
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void SampleMaski::Extensions::glSampleMaski(GLuint maskNumber, GLbitfield mask) const
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{
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_glSampleMaski(maskNumber, mask);
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}
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