7 #if defined (__linux__) || defined (__APPLE__)
8 #define filelength Q_filelength
12 ** MD3_ComputeTagFromTri
14 void MD3_ComputeTagFromTri( md3Tag_t *pTag, const float pTri[3][3] )
17 vec3_t axes[3], sides[3];
18 int longestSide, shortestSide, hypotSide;
23 memset( axes, 0, sizeof( axes ) );
24 memset( sides, 0, sizeof( sides ) );
29 for ( j = 0; j < 3; j++ )
31 sides[j][0] = pTri[(j+1)%3][0] - pTri[j][0];
32 sides[j][1] = pTri[(j+1)%3][1] - pTri[j][1];
33 sides[j][2] = pTri[(j+1)%3][2] - pTri[j][2];
35 len[j] = ( float ) sqrt( DotProduct( sides[j], sides[j] ) );
39 if ( len[0] > len[1] && len[0] > len[2] )
41 longestSide = 0; shortestSide = 1; origin = 2;
43 else if ( len[1] > len[0] && len[1] > len[2] )
45 longestSide = 1; shortestSide = 2; origin = 0;
47 else if ( len[2] > len[0] && len[2] > len[1] )
49 longestSide = 2; shortestSide = 0; origin = 1;
53 Error( "invalid tag triangle, must be a right triangle with unequal length sides" );
56 if ( len[0] > len[1] && len[0] > len[2] ) {
59 } else if ( len[1] > len[0] && len[1] > len[2] ) {
62 } else if ( len[2] > len[0] && len[2] > len[1] ) {
68 if ( len[0] > len[1] && len[0] > len[2] ) {
70 } else if ( len[1] > len[0] && len[1] > len[2] ) {
72 } else if ( len[2] > len[0] && len[2] > len[1] ) {
75 len[longestSide] = -1;
77 if ( len[0] > len[1] && len[0] > len[2] ) {
79 } else if ( len[1] > len[0] && len[1] > len[2] ) {
81 } else if ( len[2] > len[0] && len[2] > len[1] ) {
84 len[shortestSide] = -1;
88 // VectorNormalize( sides[shortestSide], axes[0] );
89 // VectorNormalize( sides[longestSide], axes[1] );
90 VectorNormalize( sides[longestSide], axes[0] );
91 VectorNormalize( sides[shortestSide], axes[1] );
93 // project shortest side so that it is exactly 90 degrees to the longer side
94 d = DotProduct( axes[0], axes[1] );
95 VectorMA( axes[0], -d, axes[1], axes[0] );
96 VectorNormalize( axes[0], axes[0] );
98 CrossProduct( sides[longestSide], sides[shortestSide], axes[2] );
99 VectorNormalize( axes[2], axes[2] );
101 pTag->origin[0] = pTri[origin][0];
102 pTag->origin[1] = pTri[origin][1];
103 pTag->origin[2] = pTri[origin][2];
105 VectorCopy( axes[0], pTag->axis[0] );
106 VectorCopy( axes[1], pTag->axis[1] );
107 VectorCopy( axes[2], pTag->axis[2] );
115 void MD3_Dump( const char *filename )
119 md3Surface_t *pSurface;
126 if ( ( fp = fopen( filename, "rb" ) ) == 0 )
128 Error( "Unable to open '%s'\n", filename );
131 fileSize = filelength( fileno( fp ) );
132 _buffer = malloc( filelength( fileno( fp ) ) );
133 fread( _buffer, fileSize, 1, fp );
136 buffer = ( char * ) _buffer;
137 header = *( md3Header_t * ) _buffer;
139 if ( header.ident != MD3_IDENT )
141 Error( "Incorrect ident for '%s'\n", filename );
144 printf( "Contents of '%s'\n", filename );
145 printf( " version: %d\n", header.version );
146 printf( " name: %s\n", header.name );
147 printf( " num frames: %d\n", header.numFrames );
148 printf( " num tags: %d\n", header.numTags );
149 printf( " num surfaces: %d\n", header.numSurfaces );
150 printf( " num skins: %d\n", header.numSkins );
151 printf( " file size: %d\n", fileSize );
153 printf( "--- TAGS ---\n" );
154 pTag = ( md3Tag_t * ) ( ( ( char * ) buffer ) + header.ofsTags );
155 for ( i = 0; i < header.numTags; i++, pTag++ )
157 printf( " tag %d ('%s')\n", i, pTag->name );
158 printf( " origin: %f,%f,%f\n", pTag->origin[0], pTag->origin[1], pTag->origin[2] );
159 printf( " vf: %f,%f,%f\n", pTag->axis[0][0], pTag->axis[0][1], pTag->axis[0][2] );
160 printf( " vr: %f,%f,%f\n", pTag->axis[1][0], pTag->axis[1][1], pTag->axis[1][2] );
161 printf( " vu: %f,%f,%f\n", pTag->axis[2][0], pTag->axis[2][1], pTag->axis[2][2] );
164 printf( "--- SURFACES ---\n" );
165 pSurface = ( md3Surface_t * ) ( ( ( char * ) buffer ) + header.ofsSurfaces );
167 for ( i = 0; i < header.numSurfaces; i++ )
171 md3Shader_t *pShader = ( md3Shader_t * ) ( ( ( char * ) pSurface ) + pSurface->ofsShaders );
173 printf( "\n surface %d ('%s')\n", i, pSurface->name );
174 printf( " num frames: %d\n", pSurface->numFrames );
175 printf( " num shaders: %d\n", pSurface->numShaders );
176 printf( " num tris: %d\n", pSurface->numTriangles );
177 printf( " num verts: %d\n", pSurface->numVerts );
179 if ( pSurface->numShaders > 0 )
181 printf( " --- SHADERS ---\n" );
183 for ( j = 0; j < pSurface->numShaders; j++, pShader++ )
185 printf( " shader %d ('%s')\n", j, pShader->name );
188 pSurface = ( md3Surface_t * ) ( ( ( char * ) pSurface ) + pSurface->ofsEnd );