add basic legacy OpenGL2 rendering

2015-04-20 15:28:52 -07:00
parent 482deb1fca
commit 13396d32bf
14 changed files with 1080 additions and 100 deletions
--- a/examples/ExampleBrowser/GL_ShapeDrawer.h
+++ b/examples/ExampleBrowser/GL_ShapeDrawer.h
@@ -0,0 +1,77 @@
+/*
+Bullet Continuous Collision Detection and Physics Library
+Copyright (c) 2003-2006 Erwin Coumans  http://continuousphysics.com/Bullet/
+
+This software is provided 'as-is', without any express or implied warranty.
+In no event will the authors be held liable for any damages arising from the use of this software.
+Permission is granted to anyone to use this software for any purpose, 
+including commercial applications, and to alter it and redistribute it freely, 
+subject to the following restrictions:
+
+1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
+2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
+3. This notice may not be removed or altered from any source distribution.
+*/
+#ifndef GL_SHAPE_DRAWER_H
+#define GL_SHAPE_DRAWER_H
+
+class btCollisionShape;
+class btShapeHull;
+class btDiscreteDynamicsWorld;
+
+#include "LinearMath/btAlignedObjectArray.h"
+#include "LinearMath/btVector3.h"
+
+#include "BulletCollision/CollisionShapes/btShapeHull.h"
+
+/// OpenGL shape drawing
+class GL_ShapeDrawer
+{
+protected:
+	struct ShapeCache
+	{
+	struct Edge { btVector3 n[2];int v[2]; };
+	ShapeCache(btConvexShape* s) : m_shapehull(s) {}
+	btShapeHull					m_shapehull;
+	btAlignedObjectArray<Edge>	m_edges;
+	};
+	//clean-up memory of dynamically created shape hulls
+	btAlignedObjectArray<ShapeCache*>	m_shapecaches;
+	unsigned int						m_texturehandle;
+	bool								m_textureenabled;
+	bool								m_textureinitialized;
+	
+
+	ShapeCache*							cache(btConvexShape*);
+
+	virtual void drawSceneInternal(const btDiscreteDynamicsWorld* world, int pass);
+
+public:
+		GL_ShapeDrawer();
+
+		virtual ~GL_ShapeDrawer();
+
+		
+
+		virtual void drawScene(const btDiscreteDynamicsWorld* world, bool useShadows);
+
+		///drawOpenGL might allocate temporary memoty, stores pointer in shape userpointer
+		virtual void		drawOpenGL(btScalar* m, const btCollisionShape* shape, const btVector3& color,int	debugMode,const btVector3& worldBoundsMin,const btVector3& worldBoundsMax);
+		virtual void		drawShadow(btScalar* m, const btVector3& extrusion,const btCollisionShape* shape,const btVector3& worldBoundsMin,const btVector3& worldBoundsMax);
+		
+		bool		enableTexture(bool enable) { bool p=m_textureenabled;m_textureenabled=enable;return(p); }
+		bool		hasTextureEnabled() const
+		{
+			return m_textureenabled;
+		}
+		
+		void			drawSphere(btScalar r, int lats, int longs);
+		static void		drawCoordSystem();
+		
+};
+
+void OGL_displaylist_register_shape(btCollisionShape * shape);
+void OGL_displaylist_clean();
+
+#endif //GL_SHAPE_DRAWER_H
+