Re-add libassimp 3.1.1 to 3rd party

Previously the assimp library was a dependency that was
always built, but it is possible to use an external
system version if one is available.  It is however non-
trivial to provide the dependency on platforms other
than Linux, so now we provide a copy of libassimp for
use when it is not already available.

This commit is a combination of reverting commit
672b3e47299f6ba0034f73b252d0436b55fb3085 which removed
assimp and introduced the scene parser, and adding the
logic to use the system version when available.

Change-Id: Ia05f9a92b8d82f19a0db3588b2bbeafe71404386
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

1 files changed, 203 insertions, 0 deletions

diff --git a/src/3rdparty/assimp/code/MDCFileData.h b/src/3rdparty/assimp/code/MDCFileData.h
new file mode 100644
index 000000000..0f110f9e9
--- /dev/null
+++ b/src/3rdparty/assimp/code/MDCFileData.h
@@ -0,0 +1,203 @@
+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2012, assimp team
+All rights reserved.
+
+Redistribution and use of this software in source and binary forms, 
+with or without modification, are permitted provided that the 
+following conditions are met:
+
+* Redistributions of source code must retain the above
+  copyright notice, this list of conditions and the
+  following disclaimer.
+
+* Redistributions in binary form must reproduce the above
+  copyright notice, this list of conditions and the
+  following disclaimer in the documentation and/or other
+  materials provided with the distribution.
+
+* Neither the name of the assimp team, nor the names of its
+  contributors may be used to endorse or promote products
+  derived from this software without specific prior
+  written permission of the assimp team.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+----------------------------------------------------------------------
+*/
+
+/** @file Defines the helper data structures for importing MDC files  
+
+**********************************************************************
+File format specification: 
+http://themdcfile.planetwolfenstein.gamespy.com/MDC_File_Format.pdf
+**********************************************************************
+
+*/
+#ifndef AI_MDCFILEHELPER_H_INC
+#define AI_MDCFILEHELPER_H_INC
+
+#include "../include/assimp/types.h"
+#include "../include/assimp/mesh.h"
+#include "../include/assimp/anim.h"
+
+#include "./../include/assimp/Compiler/pushpack1.h"
+
+
+namespace Assimp {
+namespace MDC {
+
+
+// to make it easier for us, we test the magic word against both "endianesses"
+#define AI_MDC_MAGIC_NUMBER_BE	AI_MAKE_MAGIC("CPDI")
+#define AI_MDC_MAGIC_NUMBER_LE	AI_MAKE_MAGIC("IDPC")
+
+// common limitations
+#define AI_MDC_VERSION			2
+#define AI_MDC_MAXQPATH			64
+#define	AI_MDC_MAX_BONES		128
+
+#define AI_MDC_CVERT_BIAS		127.0f
+#define	AI_MDC_DELTA_SCALING	4.0f
+#define	AI_MDC_BASE_SCALING		(1.0f / 64.0f)
+
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC file's main header
+ */
+struct Header
+{
+	uint32_t ulIdent ;
+	uint32_t ulVersion ;
+	char ucName [ AI_MDC_MAXQPATH ] ;
+	uint32_t ulFlags ;
+	uint32_t ulNumFrames ;
+	uint32_t ulNumTags ;
+	uint32_t ulNumSurfaces ;
+	uint32_t ulNumSkins ;
+	uint32_t ulOffsetBorderFrames ;
+	uint32_t ulOffsetTagNames ;
+	uint32_t ulOffsetTagFrames ;
+	uint32_t ulOffsetSurfaces ;
+	uint32_t ulOffsetEnd ;
+} PACK_STRUCT ;
+
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC file's surface header
+ */
+struct Surface
+{
+	uint32_t ulIdent ;
+	char ucName [ AI_MDC_MAXQPATH ] ;
+	uint32_t ulFlags ;
+	uint32_t ulNumCompFrames ;
+	uint32_t ulNumBaseFrames ;
+	uint32_t ulNumShaders ;
+	uint32_t ulNumVertices ;
+	uint32_t ulNumTriangles ;
+	uint32_t ulOffsetTriangles ;
+	uint32_t ulOffsetShaders ;
+	uint32_t ulOffsetTexCoords ;
+	uint32_t ulOffsetBaseVerts ;
+	uint32_t ulOffsetCompVerts ;
+	uint32_t ulOffsetFrameBaseFrames ;
+	uint32_t ulOffsetFrameCompFrames ;
+	uint32_t ulOffsetEnd;
+	Surface()
+	{
+		ucName[AI_MDC_MAXQPATH-1] = '\0';
+	}
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC frame
+ */
+struct Frame
+{
+	//! bounding box minimum coords
+	aiVector3D bboxMin ;
+
+	//! bounding box maximum coords
+	aiVector3D bboxMax ;
+
+	//! local origin of the frame
+	aiVector3D localOrigin ;
+
+	//! radius of the BB
+	float radius ;
+
+	//! Name of the frame
+	char name [ 16 ] ;
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC triangle
+ */
+struct Triangle
+{
+	uint32_t aiIndices[3];
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC texture coordinate
+ */
+struct TexturCoord
+{
+	float u,v;
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC base vertex
+ */
+struct BaseVertex
+{
+	int16_t x,y,z;
+	uint16_t normal;
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC compressed vertex
+ */
+struct CompressedVertex
+{
+	uint8_t xd,yd,zd,nd;
+} PACK_STRUCT;
+
+
+// ---------------------------------------------------------------------------
+/** \brief Data structure for a MDC shader
+ */
+struct Shader
+{
+	char ucName [ AI_MDC_MAXQPATH ] ;
+	uint32_t ulPath;
+
+} PACK_STRUCT;
+
+#include "./../include/assimp/Compiler/poppack1.h"
+
+
+// ---------------------------------------------------------------------------
+/** Build a floating point vertex from the compressed data in MDC files
+ */
+void BuildVertex(const Frame& frame,
+	const BaseVertex& bvert,
+	const CompressedVertex& cvert,
+	aiVector3D& vXYZOut, 
+	aiVector3D& vNorOut);
+}}
+
+#endif // !! AI_MDCFILEHELPER_H_INC