Initial commit of ResInsight version 0.4.8

VisualizationModules/LibViewing/cvfRenderQueue.cpp

@@ -0,0 +1,142 @@
+//##################################################################################################
+//
+//   Custom Visualization Core library
+//   Copyright (C) 2011-2012 Ceetron AS
+//    
+//   This library is free software: you can redistribute it and/or modify 
+//   it under the terms of the GNU General Public License as published by 
+//   the Free Software Foundation, either version 3 of the License, or 
+//   (at your option) any later version. 
+//    
+//   This library is distributed in the hope that it will be useful, but WITHOUT ANY 
+//   WARRANTY; without even the implied warranty of MERCHANTABILITY or 
+//   FITNESS FOR A PARTICULAR PURPOSE.   
+//    
+//   See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>> 
+//   for more details. 
+//
+//##################################################################################################
+
+#include "cvfBase.h"
+#include "cvfRenderQueue.h"
+
+namespace cvf {
+
+
+
+//==================================================================================================
+///
+/// \class cvf::RenderItem
+/// \ingroup Viewing
+///
+/// Represents one item in the RenderQueue
+/// 
+//==================================================================================================
+
+//--------------------------------------------------------------------------------------------------
+///  
+//--------------------------------------------------------------------------------------------------
+RenderItem::RenderItem()
+:   m_part(NULL),
+    m_drawable(NULL),
+    m_effect(NULL),
+    m_projectedAreaPixels(0.0f),
+    m_distance(0.0f)
+{
+}
+
+
+//--------------------------------------------------------------------------------------------------
+///  
+//--------------------------------------------------------------------------------------------------
+void RenderItem::set(Part* part, Drawable* drawable, Effect* effect, float projectedAreaPixels, float distance)
+{
+    m_part = part;
+    m_drawable = drawable;
+    m_effect = effect;
+    m_projectedAreaPixels = projectedAreaPixels;
+    m_distance = distance;
+}
+
+
+
+//==================================================================================================
+///
+/// \class cvf::RenderQueue
+/// \ingroup Viewing
+///
+/// A class for storing a queue of render items.
+/// 
+//==================================================================================================
+
+//--------------------------------------------------------------------------------------------------
+/// 
+//--------------------------------------------------------------------------------------------------
+void RenderQueue::hintNumEntriesToAdd(size_t numNewEntries)
+{
+    m_renderItemsRefCounted.reserve(numNewEntries);
+    m_renderItemsRaw.reserve(numNewEntries);
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Add a RenderItem to the queue
+//--------------------------------------------------------------------------------------------------
+void RenderQueue::add(Part* part, Drawable* drawable, Effect* effect, float projectedAreaPixels, float distance)
+{
+    RenderItem* item = new RenderItem;
+    item->set(part, drawable, effect, projectedAreaPixels, distance);
+    m_renderItemsRefCounted.push_back(item);
+    m_renderItemsRaw.push_back(item);
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Get the number of items in the render queue
+//--------------------------------------------------------------------------------------------------
+size_t RenderQueue::count() const
+{
+    return m_renderItemsRaw.size();
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Sets the count to zero, but does not necessarily delete the actual contained items
+//--------------------------------------------------------------------------------------------------
+void RenderQueue::setCountZero()
+{
+    removeAll();
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Removes all entries and releases all memory
+//--------------------------------------------------------------------------------------------------
+void RenderQueue::removeAll()
+{
+    m_renderItemsRefCounted.clear();
+    m_renderItemsRaw.clear();
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Get the RenderItem at the given index
+//--------------------------------------------------------------------------------------------------
+RenderItem* RenderQueue::item(size_t index)
+{
+    CVF_ASSERT(index < count());
+    return m_renderItemsRaw[index];
+}
+
+
+//--------------------------------------------------------------------------------------------------
+/// Get the native rendering queue
+//--------------------------------------------------------------------------------------------------
+std::vector<RenderItem*>* RenderQueue::renderItemsForSorting()
+{
+    return &m_renderItemsRaw;
+}
+
+
+} // namespace cvf
+