-/*\r
-Copyright (C) 1999-2007 id Software, Inc. and contributors.\r
-For a list of contributors, see the accompanying CONTRIBUTORS file.\r
-\r
-This file is part of GtkRadiant.\r
-\r
-GtkRadiant is free software; you can redistribute it and/or modify\r
-it under the terms of the GNU General Public License as published by\r
-the Free Software Foundation; either version 2 of the License, or\r
-(at your option) any later version.\r
-\r
-GtkRadiant is distributed in the hope that it will be useful,\r
-but WITHOUT ANY WARRANTY; without even the implied warranty of\r
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
-GNU General Public License for more details.\r
-\r
-You should have received a copy of the GNU General Public License\r
-along with GtkRadiant; if not, write to the Free Software\r
-Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\r
-*/\r
-//\r
-// l3dslib.c: library for loading triangles from an Alias triangle file\r
-//\r
-\r
-#include <stdio.h>\r
-#include "cmdlib.h"\r
-#include "inout.h"\r
-#include "mathlib.h"\r
-#include "trilib.h"\r
-#include "l3dslib.h"\r
-\r
-#define MAIN3DS 0x4D4D\r
-#define EDIT3DS 0x3D3D // this is the start of the editor config\r
-#define EDIT_OBJECT 0x4000\r
-#define OBJ_TRIMESH 0x4100\r
-#define TRI_VERTEXL 0x4110\r
-#define TRI_FACEL1 0x4120\r
-\r
-#define MAXVERTS 2000\r
-\r
-typedef struct {\r
- int v[4];\r
-} tri;\r
-\r
-float fverts[MAXVERTS][3];\r
-tri tris[MAXTRIANGLES];\r
-\r
-int bytesread, level, numtris, totaltris;\r
-int vertsfound, trisfound;\r
-\r
-triangle_t *ptri;\r
-\r
-\r
-// Alias stores triangles as 3 explicit vertices in .tri files, so even though we\r
-// start out with a vertex pool and vertex indices for triangles, we have to convert\r
-// to raw, explicit triangles\r
-void StoreAliasTriangles (void)\r
-{\r
- int i, j, k;\r
-\r
- if ((totaltris + numtris) > MAXTRIANGLES)\r
- Error ("Error: Too many triangles");\r
-\r
- for (i=0; i<numtris ; i++)\r
- {\r
- for (j=0 ; j<3 ; j++)\r
- {\r
- for (k=0 ; k<3 ; k++)\r
- {\r
- ptri[i+totaltris].verts[j][k] = fverts[tris[i].v[j]][k];\r
- }\r
- }\r
- }\r
- \r
- totaltris += numtris;\r
- numtris = 0;\r
- vertsfound = 0;\r
- trisfound = 0;\r
-}\r
-\r
-\r
-int ParseVertexL (FILE *input)\r
-{\r
- int i, j, startbytesread, numverts;\r
- unsigned short tshort;\r
-\r
- if (vertsfound)\r
- Error ("Error: Multiple vertex chunks");\r
-\r
- vertsfound = 1;\r
- startbytesread = bytesread;\r
-\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread(&tshort, sizeof(tshort), 1, input);\r
- bytesread += sizeof(tshort);\r
- numverts = (int)tshort;\r
-\r
- if (numverts > MAXVERTS)\r
- Error ("Error: Too many vertices");\r
-\r
- for (i=0 ; i<numverts ; i++)\r
- {\r
- for (j=0 ; j<3 ; j++)\r
- {\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread(&fverts[i][j], sizeof(float), 1, input);\r
- bytesread += sizeof(float);\r
- }\r
- }\r
-\r
- if (vertsfound && trisfound)\r
- StoreAliasTriangles ();\r
-\r
- return bytesread - startbytesread;\r
-}\r
-\r
-\r
-int ParseFaceL1 (FILE *input)\r
-{\r
-\r
- int i, j, startbytesread;\r
- unsigned short tshort;\r
-\r
- if (trisfound)\r
- Error ("Error: Multiple face chunks");\r
-\r
- trisfound = 1;\r
- startbytesread = bytesread;\r
-\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread(&tshort, sizeof(tshort), 1, input);\r
- bytesread += sizeof(tshort);\r
- numtris = (int)tshort;\r
-\r
- if (numtris > MAXTRIANGLES)\r
- Error ("Error: Too many triangles");\r
-\r
- for (i=0 ; i<numtris ; i++)\r
- {\r
- for (j=0 ; j<4 ; j++)\r
- {\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread(&tshort, sizeof(tshort), 1, input);\r
- bytesread += sizeof(tshort);\r
- tris[i].v[j] = (int)tshort;\r
- }\r
- }\r
-\r
- if (vertsfound && trisfound)\r
- StoreAliasTriangles ();\r
-\r
- return bytesread - startbytesread;\r
-}\r
-\r
-\r
-int ParseChunk (FILE *input)\r
-{\r
-#define BLOCK_SIZE 4096\r
- char temp[BLOCK_SIZE];\r
- unsigned short type;\r
- int i, length, w, t, retval;\r
-\r
- level++;\r
- retval = 0;\r
-\r
-// chunk type\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread(&type, sizeof(type), 1, input);\r
- bytesread += sizeof(type);\r
-\r
-// chunk length\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread (&length, sizeof(length), 1, input);\r
- bytesread += sizeof(length);\r
- w = length - 6;\r
-\r
-// process chunk if we care about it, otherwise skip it\r
- switch (type)\r
- {\r
- case TRI_VERTEXL:\r
- w -= ParseVertexL (input);\r
- goto ParseSubchunk;\r
-\r
- case TRI_FACEL1:\r
- w -= ParseFaceL1 (input);\r
- goto ParseSubchunk;\r
-\r
- case EDIT_OBJECT:\r
- // read the name\r
- i = 0;\r
-\r
- do\r
- {\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread (&temp[i], 1, 1, input);\r
- i++;\r
- w--;\r
- bytesread++;\r
- } while (temp[i-1]);\r
-\r
- case MAIN3DS:\r
- case OBJ_TRIMESH:\r
- case EDIT3DS:\r
- // parse through subchunks\r
-ParseSubchunk:\r
- while (w > 0)\r
- {\r
- w -= ParseChunk (input);\r
- }\r
-\r
- retval = length;\r
- goto Done;\r
-\r
- default:\r
- // skip other chunks\r
- while (w > 0)\r
- {\r
- t = w;\r
-\r
- if (t > BLOCK_SIZE)\r
- t = BLOCK_SIZE;\r
-\r
- if (feof(input))\r
- Error ("Error: unexpected end of file");\r
-\r
- fread (&temp, t, 1, input);\r
- bytesread += t;\r
-\r
- w -= t;\r
- }\r
-\r
- retval = length;\r
- goto Done;\r
- }\r
-\r
-Done:\r
- level--;\r
- return retval;\r
-}\r
-\r
-\r
-void Load3DSTriangleList (char *filename, triangle_t **pptri, int *numtriangles)\r
-{\r
- FILE *input;\r
- short int tshort;\r
-\r
- bytesread = 0;\r
- level = 0;\r
- numtris = 0;\r
- totaltris = 0;\r
- vertsfound = 0;\r
- trisfound = 0;\r
-\r
- if ((input = fopen(filename, "rb")) == 0) {\r
- fprintf(stderr,"reader: could not open file '%s'\n", filename);\r
- exit(0);\r
- }\r
-\r
- fread(&tshort, sizeof(tshort), 1, input);\r
-\r
-// should only be MAIN3DS, but some files seem to start with EDIT3DS, with\r
-// no MAIN3DS\r
- if ((tshort != MAIN3DS) && (tshort != EDIT3DS)) {\r
- fprintf(stderr,"File is not a 3DS file.\n");\r
- exit(0);\r
- }\r
-\r
-// back to top of file so we can parse the first chunk descriptor\r
- fseek(input, 0, SEEK_SET);\r
-\r
- ptri = malloc (MAXTRIANGLES * sizeof(triangle_t));\r
-\r
- *pptri = ptri;\r
-\r
-// parse through looking for the relevant chunk tree (MAIN3DS | EDIT3DS | EDIT_OBJECT |\r
-// OBJ_TRIMESH | {TRI_VERTEXL, TRI_FACEL1}) and skipping other chunks\r
- ParseChunk (input);\r
-\r
- if (vertsfound || trisfound)\r
- Error ("Incomplete triangle set");\r
-\r
- *numtriangles = totaltris;\r
-\r
- fclose (input);\r
-}\r
-\r
+/*
+Copyright (C) 1999-2007 id Software, Inc. and contributors.
+For a list of contributors, see the accompanying CONTRIBUTORS file.
+
+This file is part of GtkRadiant.
+
+GtkRadiant is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+GtkRadiant is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GtkRadiant; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+//
+// l3dslib.c: library for loading triangles from an Alias triangle file
+//
+
+#include <stdio.h>
+#include "cmdlib.h"
+#include "inout.h"
+#include "mathlib.h"
+#include "trilib.h"
+#include "l3dslib.h"
+
+#define MAIN3DS 0x4D4D
+#define EDIT3DS 0x3D3D // this is the start of the editor config
+#define EDIT_OBJECT 0x4000
+#define OBJ_TRIMESH 0x4100
+#define TRI_VERTEXL 0x4110
+#define TRI_FACEL1 0x4120
+
+#define MAXVERTS 2000
+
+typedef struct {
+ int v[4];
+} tri;
+
+float fverts[MAXVERTS][3];
+tri tris[MAXTRIANGLES];
+
+int bytesread, level, numtris, totaltris;
+int vertsfound, trisfound;
+
+triangle_t *ptri;
+
+
+// Alias stores triangles as 3 explicit vertices in .tri files, so even though we
+// start out with a vertex pool and vertex indices for triangles, we have to convert
+// to raw, explicit triangles
+void StoreAliasTriangles (void)
+{
+ int i, j, k;
+
+ if ((totaltris + numtris) > MAXTRIANGLES)
+ Error ("Error: Too many triangles");
+
+ for (i=0; i<numtris ; i++)
+ {
+ for (j=0 ; j<3 ; j++)
+ {
+ for (k=0 ; k<3 ; k++)
+ {
+ ptri[i+totaltris].verts[j][k] = fverts[tris[i].v[j]][k];
+ }
+ }
+ }
+
+ totaltris += numtris;
+ numtris = 0;
+ vertsfound = 0;
+ trisfound = 0;
+}
+
+
+int ParseVertexL (FILE *input)
+{
+ int i, j, startbytesread, numverts;
+ unsigned short tshort;
+
+ if (vertsfound)
+ Error ("Error: Multiple vertex chunks");
+
+ vertsfound = 1;
+ startbytesread = bytesread;
+
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread(&tshort, sizeof(tshort), 1, input);
+ bytesread += sizeof(tshort);
+ numverts = (int)tshort;
+
+ if (numverts > MAXVERTS)
+ Error ("Error: Too many vertices");
+
+ for (i=0 ; i<numverts ; i++)
+ {
+ for (j=0 ; j<3 ; j++)
+ {
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread(&fverts[i][j], sizeof(float), 1, input);
+ bytesread += sizeof(float);
+ }
+ }
+
+ if (vertsfound && trisfound)
+ StoreAliasTriangles ();
+
+ return bytesread - startbytesread;
+}
+
+
+int ParseFaceL1 (FILE *input)
+{
+
+ int i, j, startbytesread;
+ unsigned short tshort;
+
+ if (trisfound)
+ Error ("Error: Multiple face chunks");
+
+ trisfound = 1;
+ startbytesread = bytesread;
+
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread(&tshort, sizeof(tshort), 1, input);
+ bytesread += sizeof(tshort);
+ numtris = (int)tshort;
+
+ if (numtris > MAXTRIANGLES)
+ Error ("Error: Too many triangles");
+
+ for (i=0 ; i<numtris ; i++)
+ {
+ for (j=0 ; j<4 ; j++)
+ {
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread(&tshort, sizeof(tshort), 1, input);
+ bytesread += sizeof(tshort);
+ tris[i].v[j] = (int)tshort;
+ }
+ }
+
+ if (vertsfound && trisfound)
+ StoreAliasTriangles ();
+
+ return bytesread - startbytesread;
+}
+
+
+int ParseChunk (FILE *input)
+{
+#define BLOCK_SIZE 4096
+ char temp[BLOCK_SIZE];
+ unsigned short type;
+ int i, length, w, t, retval;
+
+ level++;
+ retval = 0;
+
+// chunk type
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread(&type, sizeof(type), 1, input);
+ bytesread += sizeof(type);
+
+// chunk length
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread (&length, sizeof(length), 1, input);
+ bytesread += sizeof(length);
+ w = length - 6;
+
+// process chunk if we care about it, otherwise skip it
+ switch (type)
+ {
+ case TRI_VERTEXL:
+ w -= ParseVertexL (input);
+ goto ParseSubchunk;
+
+ case TRI_FACEL1:
+ w -= ParseFaceL1 (input);
+ goto ParseSubchunk;
+
+ case EDIT_OBJECT:
+ // read the name
+ i = 0;
+
+ do
+ {
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread (&temp[i], 1, 1, input);
+ i++;
+ w--;
+ bytesread++;
+ } while (temp[i-1]);
+
+ case MAIN3DS:
+ case OBJ_TRIMESH:
+ case EDIT3DS:
+ // parse through subchunks
+ParseSubchunk:
+ while (w > 0)
+ {
+ w -= ParseChunk (input);
+ }
+
+ retval = length;
+ goto Done;
+
+ default:
+ // skip other chunks
+ while (w > 0)
+ {
+ t = w;
+
+ if (t > BLOCK_SIZE)
+ t = BLOCK_SIZE;
+
+ if (feof(input))
+ Error ("Error: unexpected end of file");
+
+ fread (&temp, t, 1, input);
+ bytesread += t;
+
+ w -= t;
+ }
+
+ retval = length;
+ goto Done;
+ }
+
+Done:
+ level--;
+ return retval;
+}
+
+
+void Load3DSTriangleList (char *filename, triangle_t **pptri, int *numtriangles)
+{
+ FILE *input;
+ short int tshort;
+
+ bytesread = 0;
+ level = 0;
+ numtris = 0;
+ totaltris = 0;
+ vertsfound = 0;
+ trisfound = 0;
+
+ if ((input = fopen(filename, "rb")) == 0) {
+ fprintf(stderr,"reader: could not open file '%s'\n", filename);
+ exit(0);
+ }
+
+ fread(&tshort, sizeof(tshort), 1, input);
+
+// should only be MAIN3DS, but some files seem to start with EDIT3DS, with
+// no MAIN3DS
+ if ((tshort != MAIN3DS) && (tshort != EDIT3DS)) {
+ fprintf(stderr,"File is not a 3DS file.\n");
+ exit(0);
+ }
+
+// back to top of file so we can parse the first chunk descriptor
+ fseek(input, 0, SEEK_SET);
+
+ ptri = malloc (MAXTRIANGLES * sizeof(triangle_t));
+
+ *pptri = ptri;
+
+// parse through looking for the relevant chunk tree (MAIN3DS | EDIT3DS | EDIT_OBJECT |
+// OBJ_TRIMESH | {TRI_VERTEXL, TRI_FACEL1}) and skipping other chunks
+ ParseChunk (input);
+
+ if (vertsfound || trisfound)
+ Error ("Incomplete triangle set");
+
+ *numtriangles = totaltris;
+
+ fclose (input);
+}
+
projects / xonotic / netradiant.git / blobdiff