243 lines
14 KiB
C++
243 lines
14 KiB
C++
struct md2;
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static const float md2normaltable[256][3] =
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{
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{ -0.525731f, 0.000000f, 0.850651f }, { -0.442863f, 0.238856f, 0.864188f }, { -0.295242f, 0.000000f, 0.955423f }, { -0.309017f, 0.500000f, 0.809017f },
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{ -0.162460f, 0.262866f, 0.951056f }, { 0.000000f, 0.000000f, 1.000000f }, { 0.000000f, 0.850651f, 0.525731f }, { -0.147621f, 0.716567f, 0.681718f },
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{ 0.147621f, 0.716567f, 0.681718f }, { 0.000000f, 0.525731f, 0.850651f }, { 0.309017f, 0.500000f, 0.809017f }, { 0.525731f, 0.000000f, 0.850651f },
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{ 0.295242f, 0.000000f, 0.955423f }, { 0.442863f, 0.238856f, 0.864188f }, { 0.162460f, 0.262866f, 0.951056f }, { -0.681718f, 0.147621f, 0.716567f },
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{ -0.809017f, 0.309017f, 0.500000f }, { -0.587785f, 0.425325f, 0.688191f }, { -0.850651f, 0.525731f, 0.000000f }, { -0.864188f, 0.442863f, 0.238856f },
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{ -0.716567f, 0.681718f, 0.147621f }, { -0.688191f, 0.587785f, 0.425325f }, { -0.500000f, 0.809017f, 0.309017f }, { -0.238856f, 0.864188f, 0.442863f },
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{ -0.425325f, 0.688191f, 0.587785f }, { -0.716567f, 0.681718f, -0.147621f }, { -0.500000f, 0.809017f, -0.309017f }, { -0.525731f, 0.850651f, 0.000000f },
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{ 0.000000f, 0.850651f, -0.525731f }, { -0.238856f, 0.864188f, -0.442863f }, { 0.000000f, 0.955423f, -0.295242f }, { -0.262866f, 0.951056f, -0.162460f },
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{ 0.000000f, 1.000000f, 0.000000f }, { 0.000000f, 0.955423f, 0.295242f }, { -0.262866f, 0.951056f, 0.162460f }, { 0.238856f, 0.864188f, 0.442863f },
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{ 0.262866f, 0.951056f, 0.162460f }, { 0.500000f, 0.809017f, 0.309017f }, { 0.238856f, 0.864188f, -0.442863f }, { 0.262866f, 0.951056f, -0.162460f },
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{ 0.500000f, 0.809017f, -0.309017f }, { 0.850651f, 0.525731f, 0.000000f }, { 0.716567f, 0.681718f, 0.147621f }, { 0.716567f, 0.681718f, -0.147621f },
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{ 0.525731f, 0.850651f, 0.000000f }, { 0.425325f, 0.688191f, 0.587785f }, { 0.864188f, 0.442863f, 0.238856f }, { 0.688191f, 0.587785f, 0.425325f },
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{ 0.809017f, 0.309017f, 0.500000f }, { 0.681718f, 0.147621f, 0.716567f }, { 0.587785f, 0.425325f, 0.688191f }, { 0.955423f, 0.295242f, 0.000000f },
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{ 1.000000f, 0.000000f, 0.000000f }, { 0.951056f, 0.162460f, 0.262866f }, { 0.850651f, -0.525731f, 0.000000f }, { 0.955423f, -0.295242f, 0.000000f },
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{ 0.864188f, -0.442863f, 0.238856f }, { 0.951056f, -0.162460f, 0.262866f }, { 0.809017f, -0.309017f, 0.500000f }, { 0.681718f, -0.147621f, 0.716567f },
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{ 0.850651f, 0.000000f, 0.525731f }, { 0.864188f, 0.442863f, -0.238856f }, { 0.809017f, 0.309017f, -0.500000f }, { 0.951056f, 0.162460f, -0.262866f },
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{ 0.525731f, 0.000000f, -0.850651f }, { 0.681718f, 0.147621f, -0.716567f }, { 0.681718f, -0.147621f, -0.716567f }, { 0.850651f, 0.000000f, -0.525731f },
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{ 0.809017f, -0.309017f, -0.500000f }, { 0.864188f, -0.442863f, -0.238856f }, { 0.951056f, -0.162460f, -0.262866f }, { 0.147621f, 0.716567f, -0.681718f },
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{ 0.309017f, 0.500000f, -0.809017f }, { 0.425325f, 0.688191f, -0.587785f }, { 0.442863f, 0.238856f, -0.864188f }, { 0.587785f, 0.425325f, -0.688191f },
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{ 0.688191f, 0.587785f, -0.425325f }, { -0.147621f, 0.716567f, -0.681718f }, { -0.309017f, 0.500000f, -0.809017f }, { 0.000000f, 0.525731f, -0.850651f },
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{ -0.525731f, 0.000000f, -0.850651f }, { -0.442863f, 0.238856f, -0.864188f }, { -0.295242f, 0.000000f, -0.955423f }, { -0.162460f, 0.262866f, -0.951056f },
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{ 0.000000f, 0.000000f, -1.000000f }, { 0.295242f, 0.000000f, -0.955423f }, { 0.162460f, 0.262866f, -0.951056f }, { -0.442863f, -0.238856f, -0.864188f },
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{ -0.309017f, -0.500000f, -0.809017f }, { -0.162460f, -0.262866f, -0.951056f }, { 0.000000f, -0.850651f, -0.525731f }, { -0.147621f, -0.716567f, -0.681718f },
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{ 0.147621f, -0.716567f, -0.681718f }, { 0.000000f, -0.525731f, -0.850651f }, { 0.309017f, -0.500000f, -0.809017f }, { 0.442863f, -0.238856f, -0.864188f },
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{ 0.162460f, -0.262866f, -0.951056f }, { 0.238856f, -0.864188f, -0.442863f }, { 0.500000f, -0.809017f, -0.309017f }, { 0.425325f, -0.688191f, -0.587785f },
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{ 0.716567f, -0.681718f, -0.147621f }, { 0.688191f, -0.587785f, -0.425325f }, { 0.587785f, -0.425325f, -0.688191f }, { 0.000000f, -0.955423f, -0.295242f },
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{ 0.000000f, -1.000000f, 0.000000f }, { 0.262866f, -0.951056f, -0.162460f }, { 0.000000f, -0.850651f, 0.525731f }, { 0.000000f, -0.955423f, 0.295242f },
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{ 0.238856f, -0.864188f, 0.442863f }, { 0.262866f, -0.951056f, 0.162460f }, { 0.500000f, -0.809017f, 0.309017f }, { 0.716567f, -0.681718f, 0.147621f },
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{ 0.525731f, -0.850651f, 0.000000f }, { -0.238856f, -0.864188f, -0.442863f }, { -0.500000f, -0.809017f, -0.309017f }, { -0.262866f, -0.951056f, -0.162460f },
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{ -0.850651f, -0.525731f, 0.000000f }, { -0.716567f, -0.681718f, -0.147621f }, { -0.716567f, -0.681718f, 0.147621f }, { -0.525731f, -0.850651f, 0.000000f },
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{ -0.500000f, -0.809017f, 0.309017f }, { -0.238856f, -0.864188f, 0.442863f }, { -0.262866f, -0.951056f, 0.162460f }, { -0.864188f, -0.442863f, 0.238856f },
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{ -0.809017f, -0.309017f, 0.500000f }, { -0.688191f, -0.587785f, 0.425325f }, { -0.681718f, -0.147621f, 0.716567f }, { -0.442863f, -0.238856f, 0.864188f },
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{ -0.587785f, -0.425325f, 0.688191f }, { -0.309017f, -0.500000f, 0.809017f }, { -0.147621f, -0.716567f, 0.681718f }, { -0.425325f, -0.688191f, 0.587785f },
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{ -0.162460f, -0.262866f, 0.951056f }, { 0.442863f, -0.238856f, 0.864188f }, { 0.162460f, -0.262866f, 0.951056f }, { 0.309017f, -0.500000f, 0.809017f },
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{ 0.147621f, -0.716567f, 0.681718f }, { 0.000000f, -0.525731f, 0.850651f }, { 0.425325f, -0.688191f, 0.587785f }, { 0.587785f, -0.425325f, 0.688191f },
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{ 0.688191f, -0.587785f, 0.425325f }, { -0.955423f, 0.295242f, 0.000000f }, { -0.951056f, 0.162460f, 0.262866f }, { -1.000000f, 0.000000f, 0.000000f },
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{ -0.850651f, 0.000000f, 0.525731f }, { -0.955423f, -0.295242f, 0.000000f }, { -0.951056f, -0.162460f, 0.262866f }, { -0.864188f, 0.442863f, -0.238856f },
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{ -0.951056f, 0.162460f, -0.262866f }, { -0.809017f, 0.309017f, -0.500000f }, { -0.864188f, -0.442863f, -0.238856f }, { -0.951056f, -0.162460f, -0.262866f },
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{ -0.809017f, -0.309017f, -0.500000f }, { -0.681718f, 0.147621f, -0.716567f }, { -0.681718f, -0.147621f, -0.716567f }, { -0.850651f, 0.000000f, -0.525731f },
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{ -0.688191f, 0.587785f, -0.425325f }, { -0.587785f, 0.425325f, -0.688191f }, { -0.425325f, 0.688191f, -0.587785f }, { -0.425325f, -0.688191f, -0.587785f },
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{ -0.587785f, -0.425325f, -0.688191f }, { -0.688191f, -0.587785f, -0.425325f }
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};
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struct md2 : vertloader<md2>
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{
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struct md2_header
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{
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int magic;
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int version;
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int skinwidth, skinheight;
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int framesize;
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int numskins, numvertices, numtexcoords;
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int numtriangles, numglcommands, numframes;
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int offsetskins, offsettexcoords, offsettriangles;
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int offsetframes, offsetglcommands, offsetend;
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};
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struct md2_vertex
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{
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uchar vertex[3], normalindex;
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};
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struct md2_frame
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{
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float scale[3];
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float translate[3];
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char name[16];
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};
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md2(const char *name) : vertloader(name) {}
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static const char *formatname() { return "md2"; }
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static bool multiparted() { return false; }
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static bool multimeshed() { return false; }
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bool flipy() const { return true; }
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int type() const { return MDL_MD2; }
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int linktype(animmodel *m, part *p) const { return LINK_COOP; }
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struct md2meshgroup : vertmeshgroup
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{
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void genverts(int *glcommands, vector<tcvert> &tcverts, vector<ushort> &vindexes, vector<tri> &tris)
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{
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hashtable<ivec, int> tchash;
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vector<ushort> idxs;
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for(int *command = glcommands; (*command)!=0;)
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{
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int numvertex = *command++;
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bool isfan = numvertex<0;
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if(isfan) numvertex = -numvertex;
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idxs.setsize(0);
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loopi(numvertex)
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{
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union { int i; float f; } u, v;
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u.i = *command++;
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v.i = *command++;
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int vindex = *command++;
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ivec tckey(u.i, v.i, vindex);
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int *idx = tchash.access(tckey);
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if(!idx)
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{
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idx = &tchash[tckey];
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*idx = tcverts.length();
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tcvert &tc = tcverts.add();
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tc.tc = vec2(u.f, v.f);
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vindexes.add((ushort)vindex);
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}
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idxs.add(*idx);
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}
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loopi(numvertex-2)
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{
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tri &t = tris.add();
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if(isfan)
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{
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t.vert[0] = idxs[0];
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t.vert[1] = idxs[i+1];
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t.vert[2] = idxs[i+2];
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}
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else loopk(3) t.vert[k] = idxs[i&1 && k ? i+(1-(k-1))+1 : i+k];
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}
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}
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}
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bool load(const char *filename, float smooth)
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{
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stream *file = openfile(filename, "rb");
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if(!file) return false;
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md2_header header;
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file->read(&header, sizeof(md2_header));
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lilswap(&header.magic, sizeof(md2_header)/sizeof(int));
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if(header.magic!=844121161 || header.version!=8 ||
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header.numframes <= 0 || header.numframes > 1000 ||
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header.numglcommands <= 0 || header.numglcommands > (1<<20) ||
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header.numvertices <= 0 || header.numvertices > (1<<20))
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{
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delete file;
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return false;
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}
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name = newstring(filename);
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numframes = header.numframes;
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vertmesh &m = *new vertmesh;
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m.group = this;
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meshes.add(&m);
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int *glcommands = new int[header.numglcommands];
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file->seek(header.offsetglcommands, SEEK_SET);
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int numglcommands = file->read(glcommands, header.numglcommands*sizeof(int))/sizeof(int);
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lilswap(glcommands, numglcommands);
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if(numglcommands < header.numglcommands) memset(&glcommands[numglcommands], 0, (header.numglcommands-numglcommands)*sizeof(int));
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vector<tcvert> tcgen;
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vector<ushort> vgen;
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vector<tri> trigen;
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genverts(glcommands, tcgen, vgen,trigen);
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delete[] glcommands;
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m.numverts = tcgen.length();
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m.tcverts = new tcvert[m.numverts];
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memcpy(m.tcverts, tcgen.getbuf(), m.numverts*sizeof(tcvert));
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m.numtris = trigen.length();
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m.tris = new tri[m.numtris];
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memcpy(m.tris, trigen.getbuf(), m.numtris*sizeof(tri));
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m.verts = new vert[m.numverts*numframes];
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md2_vertex *tmpverts = new md2_vertex[header.numvertices];
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int frame_offset = header.offsetframes;
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vert *curvert = m.verts;
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loopi(header.numframes)
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{
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md2_frame frame;
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file->seek(frame_offset, SEEK_SET);
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file->read(&frame, sizeof(md2_frame));
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lilswap(frame.scale, 6);
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file->read(tmpverts, header.numvertices*sizeof(md2_vertex));
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loopj(m.numverts)
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{
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const md2_vertex &v = tmpverts[vgen[j]];
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curvert->pos = vec(v.vertex[0]*frame.scale[0]+frame.translate[0],
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-(v.vertex[1]*frame.scale[1]+frame.translate[1]),
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v.vertex[2]*frame.scale[2]+frame.translate[2]);
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const float *norm = md2normaltable[v.normalindex];
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curvert->norm = vec(norm[0], -norm[1], norm[2]);
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++curvert;
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}
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frame_offset += header.framesize;
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}
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delete[] tmpverts;
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m.calctangents();
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delete file;
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return true;
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}
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};
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vertmeshgroup *newmeshes() { return new md2meshgroup; }
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bool loadconfig() { return false; }
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bool loaddefaultparts()
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{
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part &mdl = addpart();
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const char *pname = parentdir(name);
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defformatstring(name1, "media/model/%s/tris.md2", name);
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mdl.meshes = sharemeshes(path(name1));
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if(!mdl.meshes)
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{
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defformatstring(name2, "media/model/%s/tris.md2", pname); // try md2 in parent folder (vert sharing)
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mdl.meshes = sharemeshes(path(name2));
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if(!mdl.meshes) return false;
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}
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Texture *tex, *masks;
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loadskin(name, pname, tex, masks);
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mdl.initskins(tex, masks);
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if(tex==notexture) conoutf(CON_ERROR, "could not load model skin for %s", name1);
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identflags &= ~IDF_PERSIST;
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defformatstring(name3, "media/model/%s/md2.cfg", name);
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if(!execfile(name3, false))
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{
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formatstring(name3, "media/model/%s/md2.cfg", pname);
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execfile(name3, false);
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}
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identflags |= IDF_PERSIST;
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return true;
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}
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};
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vertcommands<md2> md2commands;
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