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cadscenefile.h
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cadscenefile.h
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/*-----------------------------------------------------------------------
Copyright (c) 2014, NVIDIA. All rights reserved.
Redistribution and use 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.
* Neither the name of its contributors may be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``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.
-----------------------------------------------------------------------*/
/* Contact ckubisch@nvidia.com (Christoph Kubisch) for feedback */
#pragma once
extern "C" {
#define CSFAPI __declspec(dllexport)
enum {
CADSCENEFILE_VERSION = 4,
CADSCENEFILE_VERSION_COMPAT = 2,
CADSCENEFILE_NOERROR = 0,
CADSCENEFILE_ERROR_NOFILE = 1,
CADSCENEFILE_ERROR_VERSION = 2,
CADSCENEFILE_ERROR_OPERATION = 3,
CADSCENEFILE_FLAG_UNIQUENODES = 1,
CADSCENEFILE_FLAG_STRIPS = 2,
CADSCENEFILE_RESTARTINDEX = -1,
};
/*
version changes:
1 initial
2 !binary break
material allows custom payload
3 hasUniqueNodes became a bitflag
added strip indices flag, file is either strip or non-strip
4 lineWidth changed to nodeIDX, allows per-part sub-transforms. sub-transforms should be below
object in hierarchy and not affect geometry bbox
*/
typedef unsigned long long CSFoffset;
typedef struct _CSFMaterial {
char name[128];
float color[4];
int type;
int numBytes;
union {
CSFoffset bytesOFFSET;
unsigned char* bytes;
};
}CSFMaterial;
typedef struct _CSFGeometryPart {
int vertex;
int indexSolid;
int indexWire;
// fixme: should add offsets, and strip/nostrip, vertexSolid/vertexWire for non-indexed, or drop vertex
}CSFGeometryPart;
typedef struct _CSFGeometry{
float matrix[16];
int numParts;
int numVertices;
int numIndexSolid;
int numIndexWire;
union {
CSFoffset vertexOFFSET;
float* vertex;
};
union {
CSFoffset normalOFFSET;
float* normal;
};
union {
CSFoffset texOFFSET;
float* tex;
};
union {
CSFoffset indexSolidOFFSET;
unsigned int* indexSolid;
};
union {
CSFoffset indexWireOFFSET;
unsigned int* indexWire;
};
union {
CSFoffset partsOFFSET;
CSFGeometryPart* parts;
};
}CSFGeometry;
typedef struct _CSFNodePart {
int active;
int materialIDX;
int nodeIDX; // -1 if own transform
}CSFNodePart;
typedef struct _CSFNode{
float objectTM[16];
float worldTM[16];
int geometryIDX;
int numParts;
int numChildren;
union {
CSFoffset partsOFFSET;
CSFNodePart* parts;
};
union {
CSFoffset childrenOFFSET;
int* children;
};
}CSFNode;
typedef struct _CSFile {
int magic;
int version;
unsigned int fileFlags;
int numPointers;
int numGeometries;
int numMaterials;
int numNodes;
int rootIDX;
union {
CSFoffset pointersOFFSET;
CSFoffset* pointers;
};
union {
CSFoffset geometriesOFFSET;
CSFGeometry* geometries;
};
union {
CSFoffset materialsOFFSET;
CSFMaterial* materials;
};
union {
CSFoffset nodesOFFSET;
CSFNode* nodes;
};
}CSFile;
typedef struct CSFileMemory_s* CSFileMemoryPTR;
CSFAPI CSFileMemoryPTR CSFileMemory_new();
CSFAPI void* CSFileMemory_alloc(CSFileMemoryPTR mem, size_t sz, const void*fill);
CSFAPI void CSFileMemory_delete(CSFileMemoryPTR mem);
CSFAPI int CSFile_loadRaw (CSFile** outcsf, size_t sz, void* data);
CSFAPI int CSFile_load (CSFile** outcsf, const char* filename, CSFileMemoryPTR mem);
CSFAPI int CSFile_save (const CSFile* csf, const char* filename);
CSFAPI int CSFile_transform(CSFile *csf); // requires unique nodes
#if CSF_ZIP_SUPPORT
CSFAPI int CSFile_loadExt(CSFile** outcsf, const char* filename, CSFileMemoryPTR mem);
CSFAPI int CSFile_saveExt(CSFile* csf, const char* filename);
#endif
};