WIP of assimp integration.

Engine/lib/assimp/code/HMPFileData.h

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+/*
+Open Asset Import Library (assimp)
+----------------------------------------------------------------------
+
+Copyright (c) 2006-2018, 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 Data structures for the 3D Game Studio Heightmap format (HMP)
+//!
+
+namespace Assimp    {
+namespace HMP   {
+
+#include <assimp/Compiler/pushpack1.h>
+#include <stdint.h>
+
+// to make it easier for us, we test the magic word against both "endianesses"
+#define AI_HMP_MAGIC_NUMBER_BE_4    AI_MAKE_MAGIC("HMP4")
+#define AI_HMP_MAGIC_NUMBER_LE_4    AI_MAKE_MAGIC("4PMH")
+
+#define AI_HMP_MAGIC_NUMBER_BE_5    AI_MAKE_MAGIC("HMP5")
+#define AI_HMP_MAGIC_NUMBER_LE_5    AI_MAKE_MAGIC("5PMH")
+
+#define AI_HMP_MAGIC_NUMBER_BE_7    AI_MAKE_MAGIC("HMP7")
+#define AI_HMP_MAGIC_NUMBER_LE_7    AI_MAKE_MAGIC("7PMH")
+
+// ---------------------------------------------------------------------------
+/** Data structure for the header of a HMP5 file.
+ *  This is also used by HMP4 and HMP7, but with modifications
+*/
+struct Header_HMP5
+{
+    int8_t  ident[4]; // "HMP5"
+    int32_t     version;
+
+    // ignored
+    float   scale[3];
+    float   scale_origin[3];
+    float   boundingradius;
+
+    //! Size of one triangle in x direction
+    float   ftrisize_x;
+    //! Size of one triangle in y direction
+    float   ftrisize_y;
+    //! Number of vertices in x direction
+    float   fnumverts_x;
+
+    //! Number of skins in the file
+    int32_t     numskins;
+
+    // can ignore this?
+    int32_t     skinwidth;
+    int32_t     skinheight;
+
+    //!Number of vertices in the file
+    int32_t     numverts;
+
+    // ignored and zero
+    int32_t     numtris;
+
+    //! only one supported ...
+    int32_t     numframes;
+
+    //! Always 0 ...
+    int32_t     num_stverts;
+    int32_t     flags;
+    float   size;
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** Data structure for a terrain vertex in a HMP4 file
+*/
+struct Vertex_HMP4
+{
+    uint16_t p_pos[3];
+    uint8_t normals162index;
+    uint8_t pad;
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** Data structure for a terrain vertex in a HMP5 file
+*/
+struct Vertex_HMP5
+{
+    uint16_t z;
+    uint8_t normals162index;
+    uint8_t pad;
+} PACK_STRUCT;
+
+// ---------------------------------------------------------------------------
+/** Data structure for a terrain vertex in a HMP7 file
+*/
+struct Vertex_HMP7
+{
+    uint16_t     z;
+    int8_t normal_x,normal_y;
+} PACK_STRUCT;
+
+#include <assimp/Compiler/poppack1.h>
+
+} //! namespace HMP
+} //! namespace Assimp