Merge of trunk into blender 2.5:

svn merge https://svn.blender.org/svnroot/bf-blender/trunk/blender -r12987:17416

Issues:
* GHOST/X11 had conflicting changes. Some code was added in 2.5, which was
  later added in trunk also, but reverted partially, specifically revision
  16683. I have left out this reversion in the 2.5 branch since I think it is
  needed there.
  http://projects.blender.org/plugins/scmsvn/viewcvs.php?view=rev&root=bf-blender&revision=16683
* Scons had various conflicting changes, I decided to go with trunk version
  for everything except priorities and some library renaming.
* In creator.c, there were various fixes and fixes for fixes related to the -w
  -W and -p options. In 2.5 -w and -W is not coded yet, and -p is done
  differently. Since this is changed so much, and I don't think those fixes
  would be needed in 2.5, I've left them out.
* Also in creator.c: there was code for a python bugfix where the screen was not
  initialized when running with -P. The code that initializes the screen there
  I had to disable, that can't work in 2.5 anymore but left it commented as a
  reminder.

Further I had to disable some new function calls. using src/ and python/, as
was done already in this branch, disabled function calls:
* bpath.c: error reporting
* BME_conversions.c: editmesh conversion functions.
* SHD_dynamic: disabled almost completely, there is no python/.
* KX_PythonInit.cpp and Ketsji/ build files: Mathutils is not there, disabled.
* text.c: clipboard copy call.
* object.c: OB_SUPPORT_MATERIAL.
* DerivedMesh.c and subsurf_ccg, stipple_quarttone.

Still to be done:
* Go over files and functions that were moved to a different location but could
  still use changes that were done in trunk.

1 files changed, 180 insertions, 0 deletions

diff --git a/extern/bullet2/src/BulletCollision/Gimpact/btTriangleShapeEx.h b/extern/bullet2/src/BulletCollision/Gimpact/btTriangleShapeEx.h
new file mode 100644
index 00000000000..bdaa323d564
--- /dev/null
+++ b/extern/bullet2/src/BulletCollision/Gimpact/btTriangleShapeEx.h
@@ -0,0 +1,180 @@
+/*! \file btGImpactShape.h
+\author Francisco Len Nßjera
+*/
+/*
+This source file is part of GIMPACT Library.
+
+For the latest info, see http://gimpact.sourceforge.net/
+
+Copyright (c) 2007 Francisco Leon Najera. C.C. 80087371.
+email: projectileman@yahoo.com
+
+
+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 TRIANGLE_SHAPE_EX_H
+#define TRIANGLE_SHAPE_EX_H
+
+#include "BulletCollision/CollisionShapes/btCollisionShape.h"
+#include "BulletCollision/CollisionShapes/btTriangleShape.h"
+#include "btBoxCollision.h"
+#include "btClipPolygon.h"
+#include "btGeometryOperations.h"
+
+
+#define MAX_TRI_CLIPPING 16
+
+//! Structure for collision
+struct BT_TRIANGLE_CONTACT
+{
+    btScalar m_penetration_depth;
+    int m_point_count;
+    btVector4 m_separating_normal;
+    btVector3 m_points[MAX_TRI_CLIPPING];
+
+	SIMD_FORCE_INLINE void copy_from(const BT_TRIANGLE_CONTACT& other)
+	{
+		m_penetration_depth = other.m_penetration_depth;
+		m_separating_normal = other.m_separating_normal;
+		m_point_count = other.m_point_count;
+		int i = m_point_count;
+		while(i--)
+		{
+			m_points[i] = other.m_points[i];
+		}
+	}
+
+	BT_TRIANGLE_CONTACT()
+	{
+	}
+
+	BT_TRIANGLE_CONTACT(const BT_TRIANGLE_CONTACT& other)
+	{
+		copy_from(other);
+	}
+
+    //! classify points that are closer
+    void merge_points(const btVector4 & plane,
+    				btScalar margin, const btVector3 * points, int point_count);
+
+};
+
+
+
+class btPrimitiveTriangle
+{
+public:
+	btVector3 m_vertices[3];
+	btVector4 m_plane;
+	btScalar m_margin;
+	btScalar m_dummy;
+	btPrimitiveTriangle():m_margin(0.01f)
+	{
+
+	}
+
+
+	SIMD_FORCE_INLINE void buildTriPlane()
+	{
+		btVector3 normal = (m_vertices[1]-m_vertices[0]).cross(m_vertices[2]-m_vertices[0]);
+		normal.normalize();
+		m_plane.setValue(normal[0],normal[1],normal[2],m_vertices[0].dot(normal));
+	}
+
+	//! Test if triangles could collide
+	bool overlap_test_conservative(const btPrimitiveTriangle& other);
+
+	//! Calcs the plane which is paralele to the edge and perpendicular to the triangle plane
+	/*!
+	\pre this triangle must have its plane calculated.
+	*/
+	SIMD_FORCE_INLINE void get_edge_plane(int edge_index, btVector4 &plane)  const
+    {
+		const btVector3 & e0 = m_vertices[edge_index];
+		const btVector3 & e1 = m_vertices[(edge_index+1)%3];
+		bt_edge_plane(e0,e1,m_plane,plane);
+    }
+
+    void applyTransform(const btTransform& t)
+	{
+		m_vertices[0] = t(m_vertices[0]);
+		m_vertices[1] = t(m_vertices[1]);
+		m_vertices[2] = t(m_vertices[2]);
+	}
+
+	//! Clips the triangle against this
+	/*!
+	\pre clipped_points must have MAX_TRI_CLIPPING size, and this triangle must have its plane calculated.
+	\return the number of clipped points
+	*/
+    int clip_triangle(btPrimitiveTriangle & other, btVector3 * clipped_points );
+
+	//! Find collision using the clipping method
+	/*!
+	\pre this triangle and other must have their triangles calculated
+	*/
+    bool find_triangle_collision_clip_method(btPrimitiveTriangle & other, BT_TRIANGLE_CONTACT & contacts);
+};
+
+
+
+//! Helper class for colliding Bullet Triangle Shapes
+/*!
+This class implements a better getAabb method than the previous btTriangleShape class
+*/
+class btTriangleShapeEx: public btTriangleShape
+{
+public:
+
+	btTriangleShapeEx():btTriangleShape(btVector3(0,0,0),btVector3(0,0,0),btVector3(0,0,0))
+	{
+	}
+
+	btTriangleShapeEx(const btVector3& p0,const btVector3& p1,const btVector3& p2):	btTriangleShape(p0,p1,p2)
+	{
+	}
+
+	btTriangleShapeEx(const btTriangleShapeEx & other):	btTriangleShape(other.m_vertices1[0],other.m_vertices1[1],other.m_vertices1[2])
+	{
+	}
+
+	virtual void getAabb(const btTransform& t,btVector3& aabbMin,btVector3& aabbMax)const
+	{
+		btVector3 tv0 = t(m_vertices1[0]);
+		btVector3 tv1 = t(m_vertices1[1]);
+		btVector3 tv2 = t(m_vertices1[2]);
+
+		btAABB trianglebox(tv0,tv1,tv2,m_collisionMargin);
+		aabbMin = trianglebox.m_min;
+		aabbMax = trianglebox.m_max;
+	}
+
+	void applyTransform(const btTransform& t)
+	{
+		m_vertices1[0] = t(m_vertices1[0]);
+		m_vertices1[1] = t(m_vertices1[1]);
+		m_vertices1[2] = t(m_vertices1[2]);
+	}
+
+	SIMD_FORCE_INLINE void buildTriPlane(btVector4 & plane) const
+	{
+		btVector3 normal = (m_vertices1[1]-m_vertices1[0]).cross(m_vertices1[2]-m_vertices1[0]);
+		normal.normalize();
+		plane.setValue(normal[0],normal[1],normal[2],m_vertices1[0].dot(normal));
+	}
+
+	bool overlap_test_conservative(const btTriangleShapeEx& other);
+};
+
+
+#endif //TRIANGLE_MESH_SHAPE_H