fakk2-sdk/source/utils/common/aselib.c
2000-09-17 00:00:00 +00:00

886 lines
19 KiB
C

#include "aselib.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#define MAX_ASE_MATERIALS 32
#define MAX_ASE_OBJECTS 64
#define MAX_ASE_ANIMATIONS 32
#define MAX_ASE_ANIMATION_FRAMES 512
#define VERBOSE( x ) { if ( ase.verbose ) { printf x ; } }
typedef struct
{
float x, y, z;
float nx, ny, nz;
float s, t;
} aseVertex_t;
typedef struct
{
float s, t;
} aseTVertex_t;
typedef int aseFace_t[3];
typedef struct
{
int numFaces;
int numVertexes;
int numTVertexes;
int timeValue;
aseVertex_t *vertexes;
aseTVertex_t *tvertexes;
aseFace_t *faces, *tfaces;
int currentFace, currentVertex;
} aseMesh_t;
typedef struct
{
int numFrames;
aseMesh_t frames[MAX_ASE_ANIMATION_FRAMES];
int currentFrame;
} aseMeshAnimation_t;
typedef struct
{
char name[128];
} aseMaterial_t;
/*
** contains the animate sequence of a single surface
** using a single material
*/
typedef struct
{
char name[128];
int materialRef;
int numAnimations;
aseMeshAnimation_t anim;
} aseGeomObject_t;
typedef struct
{
int numMaterials;
aseMaterial_t materials[MAX_ASE_MATERIALS];
aseGeomObject_t objects[MAX_ASE_OBJECTS];
char *buffer;
char *curpos;
int len;
int currentObject;
qboolean verbose;
qboolean grabAnims;
} ase_t;
static char s_token[1024];
static ase_t ase;
static void ASE_Process( void );
static void ASE_FreeGeomObject( int ndx );
/*
** ASE_Load
*/
void ASE_Load( const char *filename, qboolean verbose, qboolean grabAnims )
{
FILE *fp = fopen( filename, "rb" );
if ( !fp )
Error( "File not found '%s'", filename );
memset( &ase, 0, sizeof( ase ) );
ase.verbose = verbose;
ase.grabAnims = grabAnims;
ase.len = Q_filelength( fp );
ase.curpos = ase.buffer = malloc( ase.len );
printf( "Processing '%s'\n", filename );
if ( fread( ase.buffer, ase.len, 1, fp ) != 1 )
{
fclose( fp );
Error( "fread() != -1 for '%s'", filename );
}
fclose( fp );
ASE_Process();
}
/*
** ASE_Free
*/
void ASE_Free( void )
{
int i;
for ( i = 0; i < ase.currentObject; i++ )
{
ASE_FreeGeomObject( i );
}
}
/*
** ASE_GetNumSurfaces
*/
int ASE_GetNumSurfaces( void )
{
return ase.currentObject;
}
/*
** ASE_GetSurfaceName
*/
const char *ASE_GetSurfaceName( int which )
{
aseGeomObject_t *pObject = &ase.objects[which];
if ( !pObject->anim.numFrames )
return 0;
return pObject->name;
}
/*
** ASE_GetSurfaceAnimation
**
** Returns an animation (sequence of polysets)
*/
polyset_t *ASE_GetSurfaceAnimation( int which, int *pNumFrames, int skipFrameStart, int skipFrameEnd, int maxFrames )
{
aseGeomObject_t *pObject = &ase.objects[which];
polyset_t *psets;
int numFramesInAnimation;
int numFramesToKeep;
int i, f;
if ( !pObject->anim.numFrames )
return 0;
if ( pObject->anim.numFrames > maxFrames && maxFrames != -1 )
{
numFramesInAnimation = maxFrames;
}
else
{
numFramesInAnimation = pObject->anim.numFrames;
if ( maxFrames != -1 )
printf( "WARNING: ASE_GetSurfaceAnimation maxFrames > numFramesInAnimation\n" );
}
if ( skipFrameEnd != -1 )
numFramesToKeep = numFramesInAnimation - ( skipFrameEnd - skipFrameStart + 1 );
else
numFramesToKeep = numFramesInAnimation;
*pNumFrames = numFramesToKeep;
psets = calloc( sizeof( polyset_t ) * numFramesToKeep, 1 );
for ( f = 0, i = 0; i < numFramesInAnimation; i++ )
{
int t;
aseMesh_t *pMesh = &pObject->anim.frames[i];
if ( skipFrameStart != -1 )
{
if ( i >= skipFrameStart && i <= skipFrameEnd )
continue;
}
strcpy( psets[f].name, pObject->name );
strcpy( psets[f].materialname, ase.materials[pObject->materialRef].name );
psets[f].triangles = calloc( sizeof( triangle_t ) * pObject->anim.frames[i].numFaces, 1 );
psets[f].numtriangles = pObject->anim.frames[i].numFaces;
for ( t = 0; t < pObject->anim.frames[i].numFaces; t++ )
{
int k;
for ( k = 0; k < 3; k++ )
{
psets[f].triangles[t].verts[k][0] = pMesh->vertexes[pMesh->faces[t][k]].x;
psets[f].triangles[t].verts[k][1] = pMesh->vertexes[pMesh->faces[t][k]].y;
psets[f].triangles[t].verts[k][2] = pMesh->vertexes[pMesh->faces[t][k]].z;
if ( pMesh->tvertexes && pMesh->tfaces )
{
psets[f].triangles[t].texcoords[k][0] = pMesh->tvertexes[pMesh->tfaces[t][k]].s;
psets[f].triangles[t].texcoords[k][1] = pMesh->tvertexes[pMesh->tfaces[t][k]].t;
}
}
}
f++;
}
return psets;
}
static void ASE_FreeGeomObject( int ndx )
{
aseGeomObject_t *pObject;
int i;
pObject = &ase.objects[ndx];
for ( i = 0; i < pObject->anim.numFrames; i++ )
{
if ( pObject->anim.frames[i].vertexes )
{
free( pObject->anim.frames[i].vertexes );
}
if ( pObject->anim.frames[i].tvertexes )
{
free( pObject->anim.frames[i].tvertexes );
}
if ( pObject->anim.frames[i].faces )
{
free( pObject->anim.frames[i].faces );
}
if ( pObject->anim.frames[i].tfaces )
{
free( pObject->anim.frames[i].tfaces );
}
}
memset( pObject, 0, sizeof( *pObject ) );
}
static aseMesh_t *ASE_GetCurrentMesh( void )
{
aseGeomObject_t *pObject;
if ( ase.currentObject >= MAX_ASE_OBJECTS )
{
Error( "Too many GEOMOBJECTs" );
return 0; // never called
}
pObject = &ase.objects[ase.currentObject];
if ( pObject->anim.currentFrame >= MAX_ASE_ANIMATION_FRAMES )
{
Error( "Too many MESHes" );
return 0;
}
return &pObject->anim.frames[pObject->anim.currentFrame];
}
static int CharIsTokenDelimiter( int ch )
{
if ( ch <= 32 )
return 1;
return 0;
}
static int ASE_GetToken( qboolean restOfLine )
{
int i = 0;
if ( ase.buffer == 0 )
return 0;
if ( ( ase.curpos - ase.buffer ) == ase.len )
return 0;
// skip over crap
while ( ( ( ase.curpos - ase.buffer ) < ase.len ) &&
( *ase.curpos <= 32 ) )
{
ase.curpos++;
}
while ( ( ase.curpos - ase.buffer ) < ase.len )
{
s_token[i] = *ase.curpos;
ase.curpos++;
i++;
if ( ( CharIsTokenDelimiter( s_token[i-1] ) && !restOfLine ) ||
( ( s_token[i-1] == '\n' ) || ( s_token[i-1] == '\r' ) ) )
{
s_token[i-1] = 0;
break;
}
}
s_token[i] = 0;
return 1;
}
static void ASE_ParseBracedBlock( void (*parser)( const char *token ) )
{
int indent = 0;
while ( ASE_GetToken( qfalse ) )
{
if ( !strcmp( s_token, "{" ) )
{
indent++;
}
else if ( !strcmp( s_token, "}" ) )
{
--indent;
if ( indent == 0 )
break;
else if ( indent < 0 )
Error( "Unexpected '}'" );
}
else
{
if ( parser )
parser( s_token );
}
}
}
static void ASE_SkipEnclosingBraces( void )
{
int indent = 0;
while ( ASE_GetToken( qfalse ) )
{
if ( !strcmp( s_token, "{" ) )
{
indent++;
}
else if ( !strcmp( s_token, "}" ) )
{
indent--;
if ( indent == 0 )
break;
else if ( indent < 0 )
Error( "Unexpected '}'" );
}
}
}
static void ASE_SkipRestOfLine( void )
{
ASE_GetToken( qtrue );
}
static void ASE_KeyMAP_DIFFUSE( const char *token )
{
char buffer[1024];
int i = 0;
if ( !strcmp( token, "*BITMAP" ) )
{
ASE_GetToken( qfalse );
strcpy( buffer, s_token + 1 );
if ( strchr( buffer, '"' ) )
*strchr( buffer, '"' ) = 0;
while ( buffer[i] )
{
if ( buffer[i] == '\\' )
buffer[i] = '/';
i++;
}
if ( strstr( buffer, gamedir + 2 ) )
{
strcpy( ase.materials[ase.numMaterials].name, strstr( buffer, gamedir + 2 ) + strlen( gamedir ) - 2 );
}
else
{
sprintf( ase.materials[ase.numMaterials].name, "(not converted: '%s')", buffer );
printf( "WARNING: illegal material name '%s'\n", buffer );
}
}
else
{
}
}
static void ASE_KeyMATERIAL( const char *token )
{
if ( !strcmp( token, "*MAP_DIFFUSE" ) )
{
ASE_ParseBracedBlock( ASE_KeyMAP_DIFFUSE );
}
else
{
}
}
static void ASE_KeyMATERIAL_LIST( const char *token )
{
if ( !strcmp( token, "*MATERIAL_COUNT" ) )
{
ASE_GetToken( qfalse );
VERBOSE( ( "..num materials: %s\n", s_token ) );
if ( atoi( s_token ) > MAX_ASE_MATERIALS )
{
Error( "Too many materials!" );
}
ase.numMaterials = 0;
}
else if ( !strcmp( token, "*MATERIAL" ) )
{
VERBOSE( ( "..material %d ", ase.numMaterials ) );
ASE_ParseBracedBlock( ASE_KeyMATERIAL );
ase.numMaterials++;
}
}
static void ASE_KeyMESH_VERTEX_LIST( const char *token )
{
aseMesh_t *pMesh = ASE_GetCurrentMesh();
if ( !strcmp( token, "*MESH_VERTEX" ) )
{
ASE_GetToken( qfalse ); // skip number
ASE_GetToken( qfalse );
pMesh->vertexes[pMesh->currentVertex].y = atof( s_token );
ASE_GetToken( qfalse );
pMesh->vertexes[pMesh->currentVertex].x = -atof( s_token );
ASE_GetToken( qfalse );
pMesh->vertexes[pMesh->currentVertex].z = atof( s_token );
pMesh->currentVertex++;
if ( pMesh->currentVertex > pMesh->numVertexes )
{
Error( "pMesh->currentVertex >= pMesh->numVertexes" );
}
}
else
{
Error( "Unknown token '%s' while parsing MESH_VERTEX_LIST", token );
}
}
static void ASE_KeyMESH_FACE_LIST( const char *token )
{
aseMesh_t *pMesh = ASE_GetCurrentMesh();
if ( !strcmp( token, "*MESH_FACE" ) )
{
ASE_GetToken( qfalse ); // skip face number
ASE_GetToken( qfalse ); // skip label
ASE_GetToken( qfalse ); // first vertex
pMesh->faces[pMesh->currentFace][0] = atoi( s_token );
ASE_GetToken( qfalse ); // skip label
ASE_GetToken( qfalse ); // second vertex
pMesh->faces[pMesh->currentFace][2] = atoi( s_token );
ASE_GetToken( qfalse ); // skip label
ASE_GetToken( qfalse ); // third vertex
pMesh->faces[pMesh->currentFace][1] = atoi( s_token );
ASE_GetToken( qtrue );
/*
if ( ( p = strstr( s_token, "*MESH_MTLID" ) ) != 0 )
{
p += strlen( "*MESH_MTLID" ) + 1;
mtlID = atoi( p );
}
else
{
Error( "No *MESH_MTLID found for face!" );
}
*/
pMesh->currentFace++;
}
else
{
Error( "Unknown token '%s' while parsing MESH_FACE_LIST", token );
}
}
static void ASE_KeyTFACE_LIST( const char *token )
{
aseMesh_t *pMesh = ASE_GetCurrentMesh();
if ( !strcmp( token, "*MESH_TFACE" ) )
{
int a, b, c;
ASE_GetToken( qfalse );
ASE_GetToken( qfalse );
a = atoi( s_token );
ASE_GetToken( qfalse );
c = atoi( s_token );
ASE_GetToken( qfalse );
b = atoi( s_token );
pMesh->tfaces[pMesh->currentFace][0] = a;
pMesh->tfaces[pMesh->currentFace][1] = b;
pMesh->tfaces[pMesh->currentFace][2] = c;
pMesh->currentFace++;
}
else
{
Error( "Unknown token '%s' in MESH_TFACE", token );
}
}
static void ASE_KeyMESH_TVERTLIST( const char *token )
{
aseMesh_t *pMesh = ASE_GetCurrentMesh();
if ( !strcmp( token, "*MESH_TVERT" ) )
{
char u[80], v[80], w[80];
ASE_GetToken( qfalse );
ASE_GetToken( qfalse );
strcpy( u, s_token );
ASE_GetToken( qfalse );
strcpy( v, s_token );
ASE_GetToken( qfalse );
strcpy( w, s_token );
pMesh->tvertexes[pMesh->currentVertex].s = atof( u );
pMesh->tvertexes[pMesh->currentVertex].t = 1.0f - atof( v );
pMesh->currentVertex++;
if ( pMesh->currentVertex > pMesh->numTVertexes )
{
Error( "pMesh->currentVertex > pMesh->numTVertexes" );
}
}
else
{
Error( "Unknown token '%s' while parsing MESH_TVERTLIST" );
}
}
static void ASE_KeyMESH( const char *token )
{
aseMesh_t *pMesh = ASE_GetCurrentMesh();
if ( !strcmp( token, "*TIMEVALUE" ) )
{
ASE_GetToken( qfalse );
pMesh->timeValue = atoi( s_token );
VERBOSE( ( ".....timevalue: %d\n", pMesh->timeValue ) );
}
else if ( !strcmp( token, "*MESH_NUMVERTEX" ) )
{
ASE_GetToken( qfalse );
pMesh->numVertexes = atoi( s_token );
VERBOSE( ( ".....TIMEVALUE: %d\n", pMesh->timeValue ) );
VERBOSE( ( ".....num vertexes: %d\n", pMesh->numVertexes ) );
}
else if ( !strcmp( token, "*MESH_NUMFACES" ) )
{
ASE_GetToken( qfalse );
pMesh->numFaces = atoi( s_token );
VERBOSE( ( ".....num faces: %d\n", pMesh->numFaces ) );
}
else if ( !strcmp( token, "*MESH_NUMTVFACES" ) )
{
ASE_GetToken( qfalse );
if ( atoi( s_token ) != pMesh->numFaces )
{
Error( "MESH_NUMTVFACES != MESH_NUMFACES" );
}
}
else if ( !strcmp( token, "*MESH_NUMTVERTEX" ) )
{
ASE_GetToken( qfalse );
pMesh->numTVertexes = atoi( s_token );
VERBOSE( ( ".....num tvertexes: %d\n", pMesh->numTVertexes ) );
}
else if ( !strcmp( token, "*MESH_VERTEX_LIST" ) )
{
pMesh->vertexes = calloc( sizeof( aseVertex_t ) * pMesh->numVertexes, 1 );
pMesh->currentVertex = 0;
VERBOSE( ( ".....parsing MESH_VERTEX_LIST\n" ) );
ASE_ParseBracedBlock( ASE_KeyMESH_VERTEX_LIST );
}
else if ( !strcmp( token, "*MESH_TVERTLIST" ) )
{
pMesh->currentVertex = 0;
pMesh->tvertexes = calloc( sizeof( aseTVertex_t ) * pMesh->numTVertexes, 1 );
VERBOSE( ( ".....parsing MESH_TVERTLIST\n" ) );
ASE_ParseBracedBlock( ASE_KeyMESH_TVERTLIST );
}
else if ( !strcmp( token, "*MESH_FACE_LIST" ) )
{
pMesh->faces = calloc( sizeof( aseFace_t ) * pMesh->numFaces, 1 );
pMesh->currentFace = 0;
VERBOSE( ( ".....parsing MESH_FACE_LIST\n" ) );
ASE_ParseBracedBlock( ASE_KeyMESH_FACE_LIST );
}
else if ( !strcmp( token, "*MESH_TFACELIST" ) )
{
pMesh->tfaces = calloc( sizeof( aseFace_t ) * pMesh->numFaces, 1 );
pMesh->currentFace = 0;
VERBOSE( ( ".....parsing MESH_TFACE_LIST\n" ) );
ASE_ParseBracedBlock( ASE_KeyTFACE_LIST );
}
else if ( !strcmp( token, "*MESH_NORMALS" ) )
{
ASE_ParseBracedBlock( 0 );
}
}
static void ASE_KeyMESH_ANIMATION( const char *token )
{
aseMesh_t *pMesh = ASE_GetCurrentMesh();
// loads a single animation frame
if ( !strcmp( token, "*MESH" ) )
{
VERBOSE( ( "...found MESH\n" ) );
assert( pMesh->faces == 0 );
assert( pMesh->vertexes == 0 );
assert( pMesh->tvertexes == 0 );
memset( pMesh, 0, sizeof( *pMesh ) );
ASE_ParseBracedBlock( ASE_KeyMESH );
if ( ++ase.objects[ase.currentObject].anim.currentFrame == MAX_ASE_ANIMATION_FRAMES )
{
Error( "Too many animation frames" );
}
}
else
{
Error( "Unknown token '%s' while parsing MESH_ANIMATION", token );
}
}
static void ASE_KeyGEOMOBJECT( const char *token )
{
if ( !strcmp( token, "*NODE_NAME" ) )
{
char *name = ase.objects[ase.currentObject].name;
ASE_GetToken( qtrue );
VERBOSE( ( " %s\n", s_token ) );
strcpy( ase.objects[ase.currentObject].name, s_token + 1 );
if ( strchr( ase.objects[ase.currentObject].name, '"' ) )
*strchr( ase.objects[ase.currentObject].name, '"' ) = 0;
if ( strstr( name, "tag" ) == name )
{
while ( strchr( name, '_' ) != strrchr( name, '_' ) )
{
*strrchr( name, '_' ) = 0;
}
while ( strrchr( name, ' ' ) )
{
*strrchr( name, ' ' ) = 0;
}
}
}
else if ( !strcmp( token, "*NODE_PARENT" ) )
{
ASE_SkipRestOfLine();
}
// ignore unused data blocks
else if ( !strcmp( token, "*NODE_TM" ) ||
!strcmp( token, "*TM_ANIMATION" ) )
{
ASE_ParseBracedBlock( 0 );
}
// ignore regular meshes that aren't part of animation
else if ( !strcmp( token, "*MESH" ) && !ase.grabAnims )
{
/*
if ( strstr( ase.objects[ase.currentObject].name, "tag_" ) == ase.objects[ase.currentObject].name )
{
s_forceStaticMesh = true;
ASE_ParseBracedBlock( ASE_KeyMESH );
s_forceStaticMesh = false;
}
*/
ASE_ParseBracedBlock( ASE_KeyMESH );
if ( ++ase.objects[ase.currentObject].anim.currentFrame == MAX_ASE_ANIMATION_FRAMES )
{
Error( "Too many animation frames" );
}
ase.objects[ase.currentObject].anim.numFrames = ase.objects[ase.currentObject].anim.currentFrame;
ase.objects[ase.currentObject].numAnimations++;
/*
// ignore meshes that aren't part of animations if this object isn't a
// a tag
else
{
ASE_ParseBracedBlock( 0 );
}
*/
}
// according to spec these are obsolete
else if ( !strcmp( token, "*MATERIAL_REF" ) )
{
ASE_GetToken( qfalse );
ase.objects[ase.currentObject].materialRef = atoi( s_token );
}
// loads a sequence of animation frames
else if ( !strcmp( token, "*MESH_ANIMATION" ) )
{
if ( ase.grabAnims )
{
VERBOSE( ( "..found MESH_ANIMATION\n" ) );
if ( ase.objects[ase.currentObject].numAnimations )
{
Error( "Multiple MESH_ANIMATIONS within a single GEOM_OBJECT" );
}
ASE_ParseBracedBlock( ASE_KeyMESH_ANIMATION );
ase.objects[ase.currentObject].anim.numFrames = ase.objects[ase.currentObject].anim.currentFrame;
ase.objects[ase.currentObject].numAnimations++;
}
else
{
ASE_SkipEnclosingBraces();
}
}
// skip unused info
else if ( !strcmp( token, "*PROP_MOTIONBLUR" ) ||
!strcmp( token, "*PROP_CASTSHADOW" ) ||
!strcmp( token, "*PROP_RECVSHADOW" ) )
{
ASE_SkipRestOfLine();
}
}
static void ConcatenateObjects( aseGeomObject_t *pObjA, aseGeomObject_t *pObjB )
{
}
static void CollapseObjects( void )
{
int i;
int numObjects = ase.currentObject;
for ( i = 0; i < numObjects; i++ )
{
int j;
// skip tags
if ( strstr( ase.objects[i].name, "tag" ) == ase.objects[i].name )
{
continue;
}
if ( !ase.objects[i].numAnimations )
{
continue;
}
for ( j = i + 1; j < numObjects; j++ )
{
if ( strstr( ase.objects[j].name, "tag" ) == ase.objects[j].name )
{
continue;
}
if ( ase.objects[i].materialRef == ase.objects[j].materialRef )
{
if ( ase.objects[j].numAnimations )
{
ConcatenateObjects( &ase.objects[i], &ase.objects[j] );
}
}
}
}
}
/*
** ASE_Process
*/
static void ASE_Process( void )
{
while ( ASE_GetToken( qfalse ) )
{
if ( !strcmp( s_token, "*3DSMAX_ASCIIEXPORT" ) ||
!strcmp( s_token, "*COMMENT" ) )
{
ASE_SkipRestOfLine();
}
else if ( !strcmp( s_token, "*SCENE" ) )
ASE_SkipEnclosingBraces();
else if ( !strcmp( s_token, "*MATERIAL_LIST" ) )
{
VERBOSE( ("MATERIAL_LIST\n") );
ASE_ParseBracedBlock( ASE_KeyMATERIAL_LIST );
}
else if ( !strcmp( s_token, "*GEOMOBJECT" ) )
{
VERBOSE( ("GEOMOBJECT" ) );
ASE_ParseBracedBlock( ASE_KeyGEOMOBJECT );
if ( strstr( ase.objects[ase.currentObject].name, "Bip" ) ||
strstr( ase.objects[ase.currentObject].name, "ignore_" ) )
{
ASE_FreeGeomObject( ase.currentObject );
VERBOSE( ( "(discarding BIP/ignore object)\n" ) );
}
else if ( ( strstr( ase.objects[ase.currentObject].name, "h_" ) != ase.objects[ase.currentObject].name ) &&
( strstr( ase.objects[ase.currentObject].name, "l_" ) != ase.objects[ase.currentObject].name ) &&
( strstr( ase.objects[ase.currentObject].name, "u_" ) != ase.objects[ase.currentObject].name ) &&
( strstr( ase.objects[ase.currentObject].name, "tag" ) != ase.objects[ase.currentObject].name ) &&
ase.grabAnims )
{
VERBOSE( ( "(ignoring improperly labeled object '%s')\n", ase.objects[ase.currentObject].name ) );
ASE_FreeGeomObject( ase.currentObject );
}
else
{
if ( ++ase.currentObject == MAX_ASE_OBJECTS )
{
Error( "Too many GEOMOBJECTs" );
}
}
}
else if ( s_token[0] )
{
printf( "Unknown token '%s'\n", s_token );
}
}
if ( !ase.currentObject )
Error( "No animation data!" );
CollapseObjects();
}