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 * QtContextManager uses QtThreadedCanvas
 * cleaned up tgt


git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@198 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@197 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * added Runnable interface
 * started letting PipelineEvaluator manage its thread itself
 * documentation

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@196 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

It took quite some time, but this commit introduces thread-safe management and access to multiple OpenGL contexts.
 * added tgt::QtContextManager for managing multiple OpenGL contexts
 * adapted tgt::GLContext and tgt::QtGLContext, tgt::QtThreadedPainter
 * added PipelineEvaluator for evaluating pipelines in separate threads
 * added various lock/sync features to processors, pipelines, and processors

However, there's still plenty of clean-up work to do: some parts of the tgt library are quite messed up and the core library interfaces need some polishing...


git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@195 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * introduced abstract tgt::GLContext for thread-safe management of an OpenGL context
 * introduced Qt-threading based tgt::QtGLContext, tgt::QtThreadedCanvas and tgt::QtThreadedPainter
 * adapted tumvis-core and tumvis-application to new OpenGL context handling

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@194 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * Moved paint() method out of VisualizationPipeline back to TumVisPainter
 * started using signals/slots instead of simple observer implementation

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@193 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * fixed memory leak in ImageDataConverter
 * added usage of Shader::IgnoreUniformLocationError where reasonable
 * fixed shaders

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@189 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@187 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

 * added some initial GLSL shaders
 * work on VisualizationPipeline
 * added SliceVis pipeline stub and SliceExtractor processor stub

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@185 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@164 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@163 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@162 bb408c1c-ae56-11e1-83d9-df6b3e0c105e

git-svn-id: https://camplinux.in.tum.de/svn/campvis/trunk@161 bb408c1c-ae56-11e1-83d9-df6b3e0c105e