100 lines
3.0 KiB
C++
100 lines
3.0 KiB
C++
/*******************************************************************************
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Copyright (c) 2005-2009 David Williams
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source
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distribution.
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*******************************************************************************/
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#ifndef __PolyVox_OpenGLWidget_H__
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#define __PolyVox_OpenGLWidget_H__
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#include "glew/glew.h"
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#include <QGLWidget>
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#include <QTimer>
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#include "PolyVoxCore/LargeVolume.h"
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#include "PolyVoxCore/Mesh.h"
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#include "PolyVoxCore/Impl/Utility.h"
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#include "OpenGLImmediateModeSupport.h"
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#include "OpenGLVertexBufferObjectSupport.h"
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#include "Shapes.h"
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const int32_t g_uVolumeSideLength = 128;
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struct Vector3DUint8Compare
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{
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bool operator() (const PolyVox::Vector3DUint8& a, const PolyVox::Vector3DUint8& b) const
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{
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const uint32_t size = 3;
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for(uint32_t ct = 0; ct < size; ++ct)
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{
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if (a.getElement(ct) < b.getElement(ct))
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return true;
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if (b.getElement(ct) < a.getElement(ct))
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return false;
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}
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return false;
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}
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};
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class OpenGLWidget : public QGLWidget
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{
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public:
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OpenGLWidget(QWidget *parent);
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void setVolume(PolyVox::LargeVolume<PolyVox::MaterialDensityPair44>* volData);
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void mouseMoveEvent(QMouseEvent* event);
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void mousePressEvent(QMouseEvent* event);
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protected:
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void initializeGL();
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void resizeGL(int w, int h);
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void paintGL();
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private:
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void setupProjectionMatrix(void);
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QPoint m_LastFrameMousePos;
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QPoint m_CurrentMousePos;
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int m_xRotation;
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int m_yRotation;
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QTimer *timer;
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bool m_bUseOpenGLVertexBufferObjects;
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//Creates a volume 128x128x128
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PolyVox::LargeVolume<PolyVox::MaterialDensityPair44>* m_volData;
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//Rather than storing one big mesh, the volume is broken into regions and a mesh is stored for each region
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std::map<PolyVox::Vector3DUint8, OpenGLMesh, Vector3DUint8Compare> m_mapOpenGLMeshes;
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std::map<PolyVox::Vector3DUint8, std::shared_ptr<PolyVox::Mesh<PolyVox::MarchingCubesVertex<PolyVox::MaterialDensityPair44> > >, Vector3DUint8Compare> m_mapMeshes;
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unsigned int m_uRegionSideLength;
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unsigned int m_uVolumeWidthInRegions;
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unsigned int m_uVolumeHeightInRegions;
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unsigned int m_uVolumeDepthInRegions;
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};
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#endif //__PolyVox_OpenGLWidget_H__
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