/* _3ds_load:
* loads an autodesk 3ds model file.
*/
static picoModel_t *_3ds_load( PM_PARAMS_LOAD )
{
T3dsLoaderPers pers;
picoModel_t *model;
char basename[128];
/* create a new pico model */
model = PicoNewModel();
if (model == NULL)
{
/* user must have some serious ram problems ;) */
return NULL;
}
/* get model's base name (eg. jeep from c:\models\jeep.3ds) */
memset( basename,0,sizeof(basename) );
strncpy( basename,_pico_nopath(fileName),sizeof(basename) );
_pico_setfext( basename,"" );
/* initialize persistant vars (formerly static) */
pers.model = model;
pers.bufptr = (picoByte_t *)buffer;
pers.basename = (char *)basename;
pers.maxofs = bufSize;
pers.cofs = 0L;
/* do model setup */
PicoSetModelFrameNum( model,frameNum );
PicoSetModelName( model,fileName );
PicoSetModelFileName( model,fileName );
/* skip first chunk in file (magic) */
GetChunk(&pers);
/* process chunks */
if (!DoNextChunk(&pers,pers.maxofs))
{
/* well, bleh i guess */
PicoFreeModel(model);
return NULL;
}
/* return allocated pico model */
return model;
}
/* _ms3d_load:
* loads a milkshape3d model file.
*/
static picoModel_t *_ms3d_load( PM_PARAMS_LOAD ){
picoModel_t *model;
unsigned char *bufptr, *bufptr0;
int shaderRefs[ MS3D_MAX_GROUPS ];
int numGroups;
int numMaterials;
// unsigned char *ptrToGroups;
int numVerts;
unsigned char *ptrToVerts;
int numTris;
unsigned char *ptrToTris;
int i,k,m;
/* create new pico model */
model = PicoNewModel();
if ( model == NULL ) {
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( model, frameNum );
PicoSetModelName( model, fileName );
PicoSetModelFileName( model, fileName );
bufptr0 = bufptr = (picoByte_t*) _pico_alloc( bufSize );
memcpy( bufptr, buffer, bufSize );
/* skip header */
bufptr += sizeof( TMsHeader );
/* get number of vertices */
bufptr = GetWord( bufptr,&numVerts );
ptrToVerts = bufptr;
#ifdef DEBUG_PM_MS3D
printf( "NumVertices: %d\n",numVerts );
#endif
/* swap verts */
for ( i = 0; i < numVerts; i++ )
{
TMsVertex *vertex;
vertex = (TMsVertex *)bufptr;
bufptr += sizeof( TMsVertex );
vertex->xyz[ 0 ] = _pico_little_float( vertex->xyz[ 0 ] );
vertex->xyz[ 1 ] = _pico_little_float( vertex->xyz[ 1 ] );
vertex->xyz[ 2 ] = _pico_little_float( vertex->xyz[ 2 ] );
#ifdef DEBUG_PM_MS3D_EX_
printf( "Vertex: x: %f y: %f z: %f\n",
msvd[i]->vertex[0],
msvd[i]->vertex[1],
msvd[i]->vertex[2] );
#endif
}
/* get number of triangles */
bufptr = GetWord( bufptr,&numTris );
ptrToTris = bufptr;
#ifdef DEBUG_PM_MS3D
printf( "NumTriangles: %d\n",numTris );
#endif
/* swap tris */
for ( i = 0; i < numTris; i++ )
{
TMsTriangle *triangle;
triangle = (TMsTriangle *)bufptr;
bufptr += sizeof( TMsTriangle );
triangle->flags = _pico_little_short( triangle->flags );
/* run through all tri verts */
for ( k = 0; k < 3; k++ )
{
/* swap tex coords */
triangle->s[ k ] = _pico_little_float( triangle->s[ k ] );
triangle->t[ k ] = _pico_little_float( triangle->t[ k ] );
/* swap fields */
triangle->vertexIndices[ k ] = _pico_little_short( triangle->vertexIndices[ k ] );
triangle->vertexNormals[ 0 ][ k ] = _pico_little_float( triangle->vertexNormals[ 0 ][ k ] );
triangle->vertexNormals[ 1 ][ k ] = _pico_little_float( triangle->vertexNormals[ 1 ][ k ] );
triangle->vertexNormals[ 2 ][ k ] = _pico_little_float( triangle->vertexNormals[ 2 ][ k ] );
/* check for out of range indices */
if ( triangle->vertexIndices[ k ] >= numVerts ) {
_pico_printf( PICO_ERROR,"Vertex %d index %d out of range (%d, max %d)",i,k,triangle->vertexIndices[k],numVerts - 1 );
PicoFreeModel( model );
_pico_free( bufptr0 );
return NULL; /* yuck */
}
}
}
/* get number of groups */
bufptr = GetWord( bufptr,&numGroups );
// ptrToGroups = bufptr;
#ifdef DEBUG_PM_MS3D
printf( "NumGroups: %d\n",numGroups );
#endif
/* run through all groups in model */
for ( i = 0; i < numGroups && i < MS3D_MAX_GROUPS; i++ )
{
picoSurface_t *surface;
TMsGroup *group;
group = (TMsGroup *)bufptr;
bufptr += sizeof( TMsGroup );
/* we ignore hidden groups */
if ( group->flags & MS3D_HIDDEN ) {
bufptr += ( group->numTriangles * 2 ) + 1;
continue;
}
/* forced null term of group name */
group->name[ 31 ] = '\0';
/* create new pico surface */
surface = PicoNewSurface( model );
if ( surface == NULL ) {
PicoFreeModel( model );
_pico_free( bufptr0 );
return NULL;
}
/* do surface setup */
PicoSetSurfaceType( surface,PICO_TRIANGLES );
PicoSetSurfaceName( surface,group->name );
/* process triangle indices */
for ( k = 0; k < group->numTriangles; k++ )
{
TMsTriangle *triangle;
unsigned int triangleIndex;
/* get triangle index */
bufptr = GetWord( bufptr,(int *)&triangleIndex );
/* get ptr to triangle data */
triangle = (TMsTriangle *)( ptrToTris + ( sizeof( TMsTriangle ) * triangleIndex ) );
/* run through triangle vertices */
for ( m = 0; m < 3; m++ )
{
TMsVertex *vertex;
unsigned int vertexIndex;
picoVec2_t texCoord;
/* get ptr to vertex data */
vertexIndex = triangle->vertexIndices[ m ];
vertex = (TMsVertex *)( ptrToVerts + ( sizeof( TMsVertex ) * vertexIndex ) );
/* store vertex origin */
PicoSetSurfaceXYZ( surface,vertexIndex,vertex->xyz );
/* store vertex color */
PicoSetSurfaceColor( surface,0,vertexIndex,white );
/* store vertex normal */
PicoSetSurfaceNormal( surface,vertexIndex,triangle->vertexNormals[ m ] );
/* store current face vertex index */
PicoSetSurfaceIndex( surface,( k * 3 + ( 2 - m ) ),(picoIndex_t)vertexIndex );
/* get texture vertex coord */
texCoord[ 0 ] = triangle->s[ m ];
texCoord[ 1 ] = -triangle->t[ m ]; /* flip t */
/* store texture vertex coord */
PicoSetSurfaceST( surface,0,vertexIndex,texCoord );
}
}
/* store material */
shaderRefs[ i ] = *bufptr++;
#ifdef DEBUG_PM_MS3D
printf( "Group %d: '%s' (%d tris)\n",i,group->name,group->numTriangles );
#endif
}
/* get number of materials */
bufptr = GetWord( bufptr,&numMaterials );
#ifdef DEBUG_PM_MS3D
printf( "NumMaterials: %d\n",numMaterials );
#endif
/* run through all materials in model */
for ( i = 0; i < numMaterials; i++ )
{
picoShader_t *shader;
picoColor_t ambient,diffuse,specular;
TMsMaterial *material;
int k;
material = (TMsMaterial *)bufptr;
bufptr += sizeof( TMsMaterial );
/* null term strings */
material->name [ 31 ] = '\0';
material->texture [ 127 ] = '\0';
material->alphamap[ 127 ] = '\0';
/* ltrim strings */
_pico_strltrim( material->name );
_pico_strltrim( material->texture );
_pico_strltrim( material->alphamap );
/* rtrim strings */
_pico_strrtrim( material->name );
_pico_strrtrim( material->texture );
_pico_strrtrim( material->alphamap );
/* create new pico shader */
shader = PicoNewShader( model );
if ( shader == NULL ) {
PicoFreeModel( model );
_pico_free( bufptr0 );
return NULL;
}
/* scale shader colors */
for ( k = 0; k < 4; k++ )
{
ambient [ k ] = (picoByte_t) ( material->ambient[ k ] * 255 );
diffuse [ k ] = (picoByte_t) ( material->diffuse[ k ] * 255 );
specular[ k ] = (picoByte_t) ( material->specular[ k ] * 255 );
}
/* set shader colors */
PicoSetShaderAmbientColor( shader,ambient );
PicoSetShaderDiffuseColor( shader,diffuse );
PicoSetShaderSpecularColor( shader,specular );
/* set shader transparency */
PicoSetShaderTransparency( shader,material->transparency );
/* set shader shininess (0..127) */
PicoSetShaderShininess( shader,material->shininess );
/* set shader name */
PicoSetShaderName( shader,material->name );
/* set shader texture map name */
PicoSetShaderMapName( shader,material->texture );
#ifdef DEBUG_PM_MS3D
printf( "Material %d: '%s' ('%s','%s')\n",i,material->name,material->texture,material->alphamap );
#endif
}
/* assign shaders to surfaces */
for ( i = 0; i < numGroups && i < MS3D_MAX_GROUPS; i++ )
{
picoSurface_t *surface;
picoShader_t *shader;
/* sanity check */
if ( shaderRefs[ i ] >= MS3D_MAX_MATERIALS ||
shaderRefs[ i ] < 0 ) {
continue;
}
/* get surface */
surface = PicoGetModelSurface( model,i );
if ( surface == NULL ) {
continue;
}
/* get shader */
shader = PicoGetModelShader( model,shaderRefs[ i ] );
if ( shader == NULL ) {
continue;
}
/* assign shader */
PicoSetSurfaceShader( surface,shader );
#ifdef DEBUG_PM_MS3D
printf( "Mapped: %d ('%s') to %d (%s)\n",
shaderRefs[i],shader->name,i,surface->name );
#endif
}
/* return allocated pico model */
_pico_free( bufptr0 );
return model;
// return NULL;
}
/* _ase_load:
* loads a 3dsmax ase model file.
*/
static picoModel_t *_ase_load( PM_PARAMS_LOAD )
{
picoModel_t *model;
picoParser_t *p;
char lastNodeName[ 1024 ];
aseVertex_t* vertices = NULL;
aseTexCoord_t* texcoords = NULL;
aseColor_t* colors = NULL;
aseFace_t* faces = NULL;
int numVertices = 0;
int numFaces = 0;
int numTextureVertices = 0;
int numTextureVertexFaces = 0;
int numColorVertices = 0;
int numColorVertexFaces = 0;
int vertexId = 0;
int currentVertexFace=0;
int currentVertexIndex=0;
int counter=0;
int submodel=0;
aseMaterial_t* materials = NULL;
#ifdef DEBUG_PM_ASE
clock_t start, finish;
double elapsed;
start = clock();
#endif
/* helper */
#define _ase_error_return(m) \
{ \
_pico_printf( PICO_ERROR,"%s in ASE, line %d.",m,p->curLine); \
_pico_free_parser( p ); \
PicoFreeModel( model ); \
return NULL; \
}
/* create a new pico parser */
p = _pico_new_parser( (picoByte_t *)buffer,bufSize );
if (p == NULL) return NULL;
/* create a new pico model */
model = PicoNewModel();
if (model == NULL)
{
_pico_free_parser( p );
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( model, frameNum );
PicoSetModelName( model, fileName );
PicoSetModelFileName( model, fileName );
/* initialize some stuff */
memset( lastNodeName,0,sizeof(lastNodeName) );
/* parse ase model file */
while( 1 )
{
/* get first token on line */
if (_pico_parse_first( p ) == NULL)
break;
/* we just skip empty lines */
if (p->token == NULL || !strlen( p->token ))
continue;
/* we skip invalid ase statements */
if (p->token[0] != '*' && p->token[0] != '{' && p->token[0] != '}')
{
_pico_parse_skip_rest( p );
continue;
}
/* remember node name */
if (!_pico_stricmp(p->token,"*node_name"))
{
/* read node name */
char *ptr = _pico_parse( p,0 );
if (ptr == NULL)
_ase_error_return("Node name parse error");
/* remember node name */
strncpy( lastNodeName,ptr,sizeof(lastNodeName) );
}
/* model mesh (originally contained within geomobject) */
else if (!_pico_stricmp(p->token,"*mesh"))
{
/* finish existing surface */
_ase_submit_triangles(model, materials, vertices, texcoords, colors, faces, numFaces,numVertices,submodel++);
_pico_free(faces);
_pico_free(vertices);
_pico_free(texcoords);
_pico_free(colors);
}
else if (!_pico_stricmp(p->token,"*mesh_numvertex"))
{
if (!_pico_parse_int( p, &numVertices) )
_ase_error_return("Missing MESH_NUMVERTEX value");
vertices = _pico_calloc(numVertices, sizeof(aseVertex_t));
currentVertexIndex=0;
}
else if (!_pico_stricmp(p->token,"*mesh_numfaces"))
{
if (!_pico_parse_int( p, &numFaces) )
_ase_error_return("Missing MESH_NUMFACES value");
faces = _pico_calloc(numFaces, sizeof(aseFace_t));
}
else if (!_pico_stricmp(p->token,"*mesh_numtvertex"))
{
if (!_pico_parse_int( p, &numTextureVertices) )
_ase_error_return("Missing MESH_NUMTVERTEX value");
texcoords = _pico_calloc(numTextureVertices, sizeof(aseTexCoord_t));
}
else if (!_pico_stricmp(p->token,"*mesh_numtvfaces"))
{
if (!_pico_parse_int( p, &numTextureVertexFaces) )
_ase_error_return("Missing MESH_NUMTVFACES value");
}
else if (!_pico_stricmp(p->token,"*mesh_numcvertex"))
{
if (!_pico_parse_int( p, &numColorVertices) )
_ase_error_return("Missing MESH_NUMCVERTEX value");
colors = _pico_calloc(numColorVertices, sizeof(aseColor_t));
memset( colors, 255, numColorVertices * sizeof( aseColor_t ) ); /* ydnar: force colors to white initially */
}
else if (!_pico_stricmp(p->token,"*mesh_numcvfaces"))
{
if (!_pico_parse_int( p, &numColorVertexFaces) )
_ase_error_return("Missing MESH_NUMCVFACES value");
}
/* mesh material reference. this usually comes at the end of */
/* geomobjects after the mesh blocks. we must assume that the */
/* new mesh was already created so all we can do here is assign */
/* the material reference id (shader index) now. */
else if (!_pico_stricmp(p->token,"*material_ref"))
{
int mtlId;
/* get the material ref (0..n) */
if (!_pico_parse_int( p,&mtlId) )
_ase_error_return("Missing material reference ID");
{
int i = 0;
/* fix up all of the aseFaceList in the surface to point to the parent material */
/* we've already saved off their subMtl */
for(; i < numFaces; ++i)
{
faces[i].materialId = mtlId;
}
}
}
/* model mesh vertex */
else if (!_pico_stricmp(p->token,"*mesh_vertex"))
{
int index;
if( numVertices == 0 )
_ase_error_return("Vertex parse error");
/* get vertex data (orig: index +y -x +z) */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Vertex parse error");
if (!_pico_parse_vec( p,vertices[index].xyz ))
_ase_error_return("Vertex parse error");
vertices[index].id = vertexId++;
}
else if (!_pico_stricmp(p->token,"*mesh_facenormal"))
{
//Grab the faceindex for the next vertex normals.
if( numVertices == 0 )
_ase_error_return("Vertex parse error (facenormals)");
if (!_pico_parse_int( p,¤tVertexFace ))
_ase_error_return("Vertex parse error");
if (!_pico_parse_vec( p,faces[currentVertexFace].facenormal ))
_ase_error_return("Vertex parse error");
}
/* model mesh vertex normal */
else if (!_pico_stricmp(p->token,"*mesh_vertexnormal"))
{
int index;
if( numVertices == 0 )
_ase_error_return("Vertex parse error");
/* get vertex data (orig: index +y -x +z) */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Vertex parse error");
//^^ Index is 'wrong' in .ase models. they reference the same vert index with multiple normals..
// I've tried, this is a lost cause. Use the SG's
//
/*
if (!_pico_parse_vec( p,vertices[counter].normal ))
_ase_error_return("Vertex parse error");
vertices[counter].faceid=index;
counter++;
*/
}
/* model mesh face */
else if (!_pico_stricmp(p->token,"*mesh_normals"))
{
// counter=0; //part of the above vertex normals fix
}
/* model mesh face */
else if (!_pico_stricmp(p->token,"*mesh_face"))
{
picoIndex_t indexes[3];
int index;
if( numFaces == 0 )
_ase_error_return("Face parse error");
/* get face index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Face parse error");
/* get 1st vertex index */
_pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[0] ))
_ase_error_return("Face parse error");
/* get 2nd vertex index */
_pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[1] ))
_ase_error_return("Face parse error");
/* get 3rd vertex index */
_pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[2] ))
_ase_error_return("Face parse error");
/* parse to the subMaterial ID */
while ( 1 )
{
if (!_pico_parse (p,0)) /* EOL */
{
break;
}
if (!_pico_stricmp (p->token,"*MESH_SMOOTHING" ))
{
int total=0;
char* point;
char* start;
_pico_parse(p,0);
point=p->token;
start=point;
faces[index].smoothingGroup=0;
//Super dodgy comma delimited string parse
while (*point<'A')
{
if (*point<=32 || *point==',')
{
total=atoi(start);
if (total!=0)
{
faces[index].smoothingGroup+=1<<total;
}
start=point+1;
}
point++;
}
}
if (!_pico_stricmp (p->token,"*MESH_MTLID" ))
{
_pico_parse_int ( p , &faces[index].subMaterialId );
}
}
faces[index].materialId = 0;
faces[index].indices[0] = indexes[2];
faces[index].indices[1] = indexes[1];
faces[index].indices[2] = indexes[0];
}
/* model texture vertex */
else if (!_pico_stricmp(p->token,"*mesh_tvert"))
{
int index;
if( numVertices == 0 )
_ase_error_return("Vertex parse error");
/* get uv vertex index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("UV vertex parse error");
/* get uv vertex s */
if (!_pico_parse_float( p,&texcoords[index].texcoord[0] ))
_ase_error_return("UV vertex parse error");
/* get uv vertex t */
if (!_pico_parse_float( p,&texcoords[index].texcoord[1] ))
_ase_error_return("UV vertex parse error");
/* ydnar: invert t */
texcoords[index].texcoord[ 1 ] = 1.0f - texcoords[index].texcoord[ 1 ];
}
/* ydnar: model mesh texture face */
else if( !_pico_stricmp( p->token, "*mesh_tface" ) )
{
picoIndex_t indexes[3];
int index;
if( numFaces == 0 )
_ase_error_return("Texture face parse error");
/* get face index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Texture face parse error");
/* get 1st vertex index */
if (!_pico_parse_int( p,&indexes[0] ))
_ase_error_return("Texture face parse error");
/* get 2nd vertex index */
if (!_pico_parse_int( p,&indexes[1] ))
_ase_error_return("Texture face parse error");
/* get 3rd vertex index */
if (!_pico_parse_int( p,&indexes[2] ))
_ase_error_return("Texture face parse error");
faces[index].indices[3] = indexes[2];
faces[index].indices[4] = indexes[1];
faces[index].indices[5] = indexes[0];
}
/* model color vertex */
else if (!_pico_stricmp(p->token,"*mesh_vertcol"))
{
int index;
float colorInput;
if( numVertices == 0 )
_ase_error_return("Color Vertex parse error");
/* get color vertex index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Color vertex parse error");
/* get R component */
if (!_pico_parse_float( p,&colorInput ))
_ase_error_return("Color vertex parse error");
colors[index].color[0] = (picoByte_t)(colorInput * 255);
/* get G component */
if (!_pico_parse_float( p,&colorInput ))
_ase_error_return("Color vertex parse error");
colors[index].color[1] = (picoByte_t)(colorInput * 255);
/* get B component */
if (!_pico_parse_float( p,&colorInput ))
_ase_error_return("Color vertex parse error");
colors[index].color[2] = (picoByte_t)(colorInput * 255);
/* leave alpha alone since we don't get any data from the ASE format */
colors[index].color[3] = 255;
/* 27 hack, red as alpha */
colors[index].color[3]=colors[index].color[0];
colors[index].color[0]=255;
colors[index].color[1]=255;
colors[index].color[2]=255;
}
/* model color face */
else if (!_pico_stricmp(p->token,"*mesh_cface"))
{
picoIndex_t indexes[3];
int index;
if( numFaces == 0 )
_ase_error_return("Face parse error");
/* get face index */
if (!_pico_parse_int( p,&index ))
_ase_error_return("Face parse error");
/* get 1st cvertex index */
// _pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[0] ))
_ase_error_return("Face parse error");
/* get 2nd cvertex index */
// _pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[1] ))
_ase_error_return("Face parse error");
/* get 3rd cvertex index */
// _pico_parse( p,0 );
if (!_pico_parse_int( p,&indexes[2] ))
_ase_error_return("Face parse error");
faces[index].indices[6] = indexes[2];
faces[index].indices[7] = indexes[1];
faces[index].indices[8] = indexes[0];
}
/* model material */
else if( !_pico_stricmp( p->token, "*material" ) )
{
aseSubMaterial_t* subMaterial = NULL;
picoShader_t *shader;
int level = 1, index;
char materialName[ 1024 ];
float transValue = 0.0f, shineValue = 1.0f;
picoColor_t ambientColor, diffuseColor, specularColor;
char *mapname = NULL;
int subMtlId, subMaterialLevel = -1;
/* get material index */
_pico_parse_int( p,&index );
/* check brace */
if (!_pico_parse_check(p,1,"{"))
_ase_error_return("Material missing opening brace");
/* parse material block */
while( 1 )
{
/* get next token */
if (_pico_parse(p,1) == NULL) break;
if (!strlen(p->token)) continue;
/* handle levels */
if (p->token[0] == '{') level++;
if (p->token[0] == '}') level--;
if (!level) break;
if( level == subMaterialLevel )
{
/* set material name */
_pico_first_token( materialName );
PicoSetShaderName( shader, materialName);
/* set shader's transparency */
PicoSetShaderTransparency( shader,transValue );
/* set shader's ambient color */
PicoSetShaderAmbientColor( shader,ambientColor );
/* set diffuse alpha to transparency */
diffuseColor[3] = (picoByte_t)( transValue * 255.0 );
/* set shader's diffuse color */
PicoSetShaderDiffuseColor( shader,diffuseColor );
/* set shader's specular color */
PicoSetShaderSpecularColor( shader,specularColor );
/* set shader's shininess */
PicoSetShaderShininess( shader,shineValue );
/* set material map name */
PicoSetShaderMapName( shader, mapname );
subMaterial = _ase_add_submaterial( &materials, index, subMtlId, shader );
subMaterialLevel = -1;
}
/* parse submaterial index */
if (!_pico_stricmp(p->token,"*submaterial"))
{
/* allocate new pico shader */
_pico_parse_int( p , &subMtlId );
shader = PicoNewShader( model );
if (shader == NULL)
{
PicoFreeModel( model );
return NULL;
}
subMaterialLevel = level;
}
/* parse material name */
else if (!_pico_stricmp(p->token,"*material_name"))
{
char* name = _pico_parse(p,0);
if ( name == NULL)
_ase_error_return("Missing material name");
strcpy ( materialName , name );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse material transparency */
else if (!_pico_stricmp(p->token,"*material_transparency"))
{
/* get transparency value from ase */
if (!_pico_parse_float( p,&transValue ))
_ase_error_return("Material transparency parse error");
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse material shininess */
else if (!_pico_stricmp(p->token,"*material_shine"))
{
/* remark:
* - not sure but instead of '*material_shine' i might
* need to use '*material_shinestrength' */
/* get shine value from ase */
if (!_pico_parse_float( p,&shineValue ))
_ase_error_return("Material shine parse error");
/* scale ase shine range 0..1 to pico range 0..127 */
shineValue *= 128.0;
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse ambient material color */
else if (!_pico_stricmp(p->token,"*material_ambient"))
{
picoVec3_t vec;
/* get r,g,b float values from ase */
if (!_pico_parse_vec( p,vec ))
_ase_error_return("Material color parse error");
/* setup 0..255 range color values */
ambientColor[ 0 ] = (int)( vec[ 0 ] * 255.0 );
ambientColor[ 1 ] = (int)( vec[ 1 ] * 255.0 );
ambientColor[ 2 ] = (int)( vec[ 2 ] * 255.0 );
ambientColor[ 3 ] = (int)( 255 );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse diffuse material color */
else if (!_pico_stricmp(p->token,"*material_diffuse"))
{
picoVec3_t vec;
/* get r,g,b float values from ase */
if (!_pico_parse_vec( p,vec ))
_ase_error_return("Material color parse error");
/* setup 0..255 range color */
diffuseColor[ 0 ] = (int)( vec[ 0 ] * 255.0 );
diffuseColor[ 1 ] = (int)( vec[ 1 ] * 255.0 );
diffuseColor[ 2 ] = (int)( vec[ 2 ] * 255.0 );
diffuseColor[ 3 ] = (int)( 255 );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* parse specular material color */
else if (!_pico_stricmp(p->token,"*material_specular"))
{
picoVec3_t vec;
/* get r,g,b float values from ase */
if (!_pico_parse_vec( p,vec ))
_ase_error_return("Material color parse error");
/* setup 0..255 range color */
specularColor[ 0 ] = (int)( vec[ 0 ] * 255 );
specularColor[ 1 ] = (int)( vec[ 1 ] * 255 );
specularColor[ 2 ] = (int)( vec[ 2 ] * 255 );
specularColor[ 3 ] = (int)( 255 );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
/* material diffuse map */
else if (!_pico_stricmp(p->token,"*map_diffuse") )
{
int sublevel = 0;
/* parse material block */
while( 1 )
{
/* get next token */
if (_pico_parse(p,1) == NULL) break;
if (!strlen(p->token)) continue;
/* handle levels */
if (p->token[0] == '{') sublevel++;
if (p->token[0] == '}') sublevel--;
if (!sublevel) break;
/* parse diffuse map bitmap */
if (!_pico_stricmp(p->token,"*bitmap"))
{
char* name = _pico_parse(p,0);
if (name == NULL)
_ase_error_return("Missing material map bitmap name");
mapname = _pico_alloc ( strlen ( name ) + 1 );
strcpy ( mapname, name );
/* skip rest and continue with next token */
_pico_parse_skip_rest( p );
continue;
}
}
}
/* end map_diffuse block */
}
/* end material block */
if( subMaterial == NULL )
{
/* allocate new pico shader */
shader = PicoNewShader( model );
if (shader == NULL)
{
PicoFreeModel( model );
return NULL;
}
/* set material name */
PicoSetShaderName( shader,materialName );
/* set shader's transparency */
PicoSetShaderTransparency( shader,transValue );
/* set shader's ambient color */
PicoSetShaderAmbientColor( shader,ambientColor );
/* set diffuse alpha to transparency */
diffuseColor[3] = (picoByte_t)( transValue * 255.0 );
/* set shader's diffuse color */
PicoSetShaderDiffuseColor( shader,diffuseColor );
/* set shader's specular color */
PicoSetShaderSpecularColor( shader,specularColor );
/* set shader's shininess */
PicoSetShaderShininess( shader,shineValue );
/* set material map name */
PicoSetShaderMapName( shader, mapname );
/* extract shadername from bitmap path */
if(mapname != NULL)
{
char* p = mapname;
/* convert to shader-name format */
{
/* unix-style path separators */
char* s = mapname;
for(; *s != '\0'; ++s)
{
if(*s == '\\')
{
*s = '/';
}
}
}
{
/* remove extension */
char* last_period = strrchr(p, '.');
if(last_period != NULL)
{
*last_period = '\0';
}
}
/* find game root */
for(; *p != '\0'; ++p)
{
if(_pico_strnicmp(p, "quake", 5) == 0 || _pico_strnicmp(p, "doom", 4) == 0)
{
break;
}
}
/* root-relative */
for(; *p != '\0'; ++p)
{
if(*p == '/')
{
++p;
break;
}
}
/* game-relative */
for(; *p != '\0'; ++p)
{
if(*p == '/')
{
++p;
break;
}
}
if(*p != '\0')
{
/* set material name */
PicoSetShaderName( shader,p );
}
}
/* this is just a material with 1 submaterial */
subMaterial = _ase_add_submaterial( &materials, index, 0, shader );
}
/* ydnar: free mapname */
if( mapname != NULL )
_pico_free( mapname );
} // !_pico_stricmp ( "*material" )
/* skip unparsed rest of line and continue */
_pico_parse_skip_rest( p );
}
/* ydnar: finish existing surface */
_ase_submit_triangles(model, materials, vertices, texcoords, colors, faces, numFaces,numVertices,submodel++);
_pico_free(faces);
_pico_free(vertices);
_pico_free(texcoords);
_pico_free(colors);
#ifdef DEBUG_PM_ASE
_ase_print_materials(materials);
finish = clock();
elapsed = (double)(finish - start) / CLOCKS_PER_SEC;
_pico_printf( PICO_NORMAL, "Loaded model in in %-.2f second(s)\n", elapsed );
#endif //DEBUG_PM_ASE
_ase_free_materials(&materials);
_pico_free_parser( p );
/* return allocated pico model */
return model;
}
// _fm_load() loads a Heretic 2 model file.
static picoModel_t *_fm_load( PM_PARAMS_LOAD )
{
int i, j, dups, dup_index;
int fm_file_pos;
index_LUT_t *p_index_LUT, *p_index_LUT2, *p_index_LUT3;
index_DUP_LUT_t *p_index_LUT_DUPS;
fm_vert_normal_t *vert;
char skinname[FM_SKINPATHSIZE];
fm_t fm;
fm_header_t *fm_head;
fm_st_t *texCoord;
fm_xyz_st_t *tri_verts;
fm_xyz_st_t *triangle;
fm_frame_t *frame;
picoByte_t *bb, *bb0;
picoModel_t *picoModel;
picoSurface_t *picoSurface;
picoShader_t *picoShader;
picoVec3_t xyz, normal;
picoVec2_t st;
picoColor_t color;
bb0 = bb = (picoByte_t*) _pico_alloc(bufSize);
memcpy(bb, buffer, bufSize);
// Header Header
fm.fm_header_hdr = (fm_chunk_header_t *) bb;
fm_file_pos = sizeof(fm_chunk_header_t) + fm.fm_header_hdr->size;
if( (strcmp(fm.fm_header_hdr->ident, FM_HEADERCHUNKNAME)) )
{
_pico_printf( PICO_WARNING, "FM Header Ident incorrect\n");
_pico_free(bb0);
return NULL;
}
if( _pico_little_long( fm.fm_header_hdr->version ) != FM_HEADERCHUNKVER )
{
_pico_printf( PICO_WARNING, "FM Header Version incorrect\n");
_pico_free(bb0);
return NULL;
}
// Skin Header
fm.fm_skin_hdr = (fm_chunk_header_t *) (bb + fm_file_pos);
fm_file_pos += sizeof(fm_chunk_header_t) + fm.fm_skin_hdr->size;
if( (strcmp(fm.fm_skin_hdr->ident, FM_SKINCHUNKNAME)) )
{
_pico_printf( PICO_WARNING, "FM Skin Ident incorrect\n");
_pico_free(bb0);
return NULL;
}
if( _pico_little_long( fm.fm_skin_hdr->version ) != FM_SKINCHUNKVER )
{
_pico_printf( PICO_WARNING, "FM Skin Version incorrect\n");
_pico_free(bb0);
return NULL;
}
// ST Header
fm.fm_st_hdr = (fm_chunk_header_t *) (bb + fm_file_pos);
fm_file_pos += sizeof(fm_chunk_header_t) + fm.fm_st_hdr->size;
if( (strcmp(fm.fm_st_hdr->ident, FM_STCOORDCHUNKNAME)) )
{
_pico_printf( PICO_WARNING, "FM ST Ident incorrect\n");
_pico_free(bb0);
return NULL;
}
if( _pico_little_long( fm.fm_st_hdr->version ) != FM_STCOORDCHUNKVER )
{
_pico_printf( PICO_WARNING, "FM ST Version incorrect\n");
_pico_free(bb0);
return NULL;
}
// Tris Header
fm.fm_tri_hdr = (fm_chunk_header_t *) (bb + fm_file_pos);
fm_file_pos += sizeof(fm_chunk_header_t) + fm.fm_tri_hdr->size;
if( (strcmp(fm.fm_tri_hdr->ident, FM_TRISCHUNKNAME)) )
{
_pico_printf( PICO_WARNING, "FM Tri Ident incorrect\n");
_pico_free(bb0);
return NULL;
}
if( _pico_little_long( fm.fm_tri_hdr->version ) != FM_TRISCHUNKVER )
{
_pico_printf( PICO_WARNING, "FM Tri Version incorrect\n");
_pico_free(bb0);
return NULL;
}
// Frame Header
fm.fm_frame_hdr = (fm_chunk_header_t *) (bb + fm_file_pos);
fm_file_pos += sizeof(fm_chunk_header_t);
if( (strcmp(fm.fm_frame_hdr->ident, FM_FRAMESCHUNKNAME)) )
{
_pico_printf( PICO_WARNING, "FM Frame Ident incorrect\n");
_pico_free(bb0);
return NULL;
}
if( _pico_little_long( fm.fm_frame_hdr->version ) != FM_FRAMESCHUNKVER )
{
_pico_printf( PICO_WARNING, "FM Frame Version incorrect\n");
_pico_free(bb0);
return NULL;
}
// Header
fm_file_pos = sizeof(fm_chunk_header_t);
fm_head = fm.fm_header = (fm_header_t *) (bb + fm_file_pos);
fm_file_pos += fm.fm_header_hdr->size;
// Skin
fm_file_pos += sizeof(fm_chunk_header_t);
fm.fm_skin = (fm_skinpath_t *) (bb + fm_file_pos);
fm_file_pos += fm.fm_skin_hdr->size;
// ST
fm_file_pos += sizeof(fm_chunk_header_t);
texCoord = fm.fm_st = (fm_st_t *) (bb + fm_file_pos);
fm_file_pos += fm.fm_st_hdr->size;
// Tri
fm_file_pos += sizeof(fm_chunk_header_t);
tri_verts = fm.fm_tri = (fm_xyz_st_t *) (bb + fm_file_pos);
fm_file_pos += fm.fm_tri_hdr->size;
// Frame
fm_file_pos += sizeof(fm_chunk_header_t);
frame = fm.fm_frame = (fm_frame_t *) (bb + fm_file_pos);
// do frame check
if( fm_head->numFrames < 1 )
{
_pico_printf( PICO_ERROR, "%s has 0 frames!", fileName );
_pico_free(bb0);
return NULL;
}
if( frameNum < 0 || frameNum >= fm_head->numFrames )
{
_pico_printf( PICO_ERROR, "Invalid or out-of-range FM frame specified" );
_pico_free(bb0);
return NULL;
}
// swap fm
fm_head->skinWidth = _pico_little_long( fm_head->skinWidth );
fm_head->skinHeight = _pico_little_long( fm_head->skinHeight );
fm_head->frameSize = _pico_little_long( fm_head->frameSize );
fm_head->numSkins = _pico_little_long( fm_head->numSkins );
fm_head->numXYZ = _pico_little_long( fm_head->numXYZ );
fm_head->numST = _pico_little_long( fm_head->numST );
fm_head->numTris = _pico_little_long( fm_head->numTris );
fm_head->numGLCmds = _pico_little_long( fm_head->numGLCmds );
fm_head->numFrames = _pico_little_long( fm_head->numFrames );
// swap frame scale and translation
for( i = 0; i < 3; i++ )
{
frame->header.scale[ i ] = _pico_little_float( frame->header.scale[ i ] );
frame->header.translate[ i ] = _pico_little_float( frame->header.translate[ i ] );
}
// swap triangles
triangle = tri_verts;
for( i = 0; i < fm_head->numTris; i++, triangle++ )
{
for( j = 0; j < 3; j++ )
{
triangle->index_xyz[ j ] = _pico_little_short( triangle->index_xyz[ j ] );
triangle->index_st[ j ] = _pico_little_short( triangle->index_st[ j ] );
}
}
// swap st coords
for( i = 0; i < fm_head->numST; i++ )
{
texCoord->s = _pico_little_short( texCoord[i].s );
texCoord->t = _pico_little_short( texCoord[i].t );
}
// set Skin Name
strncpy(skinname, (const char *) fm.fm_skin, FM_SKINPATHSIZE );
#ifdef FM_VERBOSE_DBG
// Print out md2 values
_pico_printf(PICO_VERBOSE,"numSkins->%d numXYZ->%d numST->%d numTris->%d numFrames->%d\nSkin Name \"%s\"\n", fm_head->numSkins, fm_head->numXYZ, fm_head->numST, fm_head->numTris, fm_head->numFrames, &skinname );
#endif
// detox Skin name
_pico_setfext( skinname, "" );
_pico_unixify( skinname );
/* create new pico model */
picoModel = PicoNewModel();
if( picoModel == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model" );
_pico_free(bb0);
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( picoModel, frameNum );
PicoSetModelNumFrames( picoModel, fm_head->numFrames ); /* sea */
PicoSetModelName( picoModel, fileName );
PicoSetModelFileName( picoModel, fileName );
// allocate new pico surface
picoSurface = PicoNewSurface( picoModel );
if( picoSurface == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model surface" );
PicoFreeModel( picoModel );
_pico_free(bb0);
return NULL;
}
PicoSetSurfaceType( picoSurface, PICO_TRIANGLES );
PicoSetSurfaceName( picoSurface, frame->header.name );
picoShader = PicoNewShader( picoModel );
if( picoShader == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model shader" );
PicoFreeModel( picoModel );
_pico_free(bb0);
return NULL;
}
PicoSetShaderName( picoShader, skinname );
// associate current surface with newly created shader
PicoSetSurfaceShader( picoSurface, picoShader );
// Init LUT for Verts
p_index_LUT = (index_LUT_t *)_pico_alloc(sizeof(index_LUT_t) * fm_head->numXYZ);
for(i=0; i<fm_head->numXYZ; i++)
{
p_index_LUT[i].Vert = -1;
p_index_LUT[i].ST = -1;
p_index_LUT[i].next = NULL;
}
// Fill in Look Up Table, and allocate/fill Linked List from vert array as needed for dup STs per Vert.
dups = 0;
triangle = tri_verts;
for(i=0; i<fm_head->numTris; i++)
{
for(j=0; j<3; j++)
{
if (p_index_LUT[triangle->index_xyz[j]].ST == -1) // No Main Entry
p_index_LUT[triangle->index_xyz[j]].ST = triangle->index_st[j];
else if (triangle->index_st[j] == p_index_LUT[triangle->index_xyz[j]].ST ) // Equal to Main Entry
{
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, "-> Tri #%d, Vert %d:\t XYZ:%d ST:%d\n", i, j, triangle->index_xyz[j], triangle->index_st[j]);
#endif
continue;
}
else if ( (p_index_LUT[triangle->index_xyz[j]].next == NULL) ) // Not equal to Main entry, and no LL entry
{ // Add first entry of LL from Main
p_index_LUT2 = (index_LUT_t *)_pico_alloc(sizeof(index_LUT_t));
if (p_index_LUT2 == NULL)
_pico_printf( PICO_NORMAL, " Couldn't allocate memory!\n");
p_index_LUT[triangle->index_xyz[j]].next = (index_LUT_t *)p_index_LUT2;
p_index_LUT2->Vert = dups;
p_index_LUT2->ST = triangle->index_st[j];
p_index_LUT2->next = NULL;
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, " ADDING first LL XYZ:%d DUP:%d ST:%d\n", triangle->index_xyz[j], dups, triangle->index_st[j]);
#endif
triangle->index_xyz[j] = dups + fm_head->numXYZ; // Make change in Tri hunk
dups++;
}
else // Try to find in LL from Main Entry
{
p_index_LUT3 = p_index_LUT2 = p_index_LUT[triangle->index_xyz[j]].next;
while ( (p_index_LUT2 != NULL) && (triangle->index_xyz[j] != p_index_LUT2->Vert) ) // Walk down LL
{
p_index_LUT3 = p_index_LUT2;
p_index_LUT2 = p_index_LUT2->next;
}
p_index_LUT2 = p_index_LUT3;
if ( triangle->index_st[j] == p_index_LUT2->ST ) // Found it
{
triangle->index_xyz[j] = p_index_LUT2->Vert + fm_head->numXYZ; // Make change in Tri hunk
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, "--> Tri #%d, Vert %d:\t XYZ:%d ST:%d\n", i, j, triangle->index_xyz[j], triangle->index_st[j]);
#endif
continue;
}
if ( p_index_LUT2->next == NULL) // Didn't find it. Add entry to LL.
{
// Add the Entry
p_index_LUT3 = (index_LUT_t *)_pico_alloc(sizeof(index_LUT_t));
if (p_index_LUT3 == NULL)
_pico_printf( PICO_NORMAL, " Couldn't allocate memory!\n");
p_index_LUT2->next = (index_LUT_t *)p_index_LUT3;
p_index_LUT3->Vert = dups;
p_index_LUT3->ST = triangle->index_st[j];
p_index_LUT3->next = NULL;
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, " ADDING additional LL XYZ:%d DUP:%d NewXYZ:%d ST:%d\n", triangle->index_xyz[j], dups, dups + (fm_head->numXYZ), triangle->index_st[j]);
#endif
triangle->index_xyz[j] = dups + fm_head->numXYZ; // Make change in Tri hunk
dups++;
}
}
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, "---> Tri #%d, Vert %d:\t XYZ:%d ST:%d\n", i, j, triangle->index_xyz[j], triangle->index_st[j]);
#endif
}
triangle++;
}
// malloc and build array for Dup STs
p_index_LUT_DUPS = (index_DUP_LUT_t *)_pico_alloc(sizeof(index_DUP_LUT_t) * dups);
if (p_index_LUT_DUPS == NULL)
_pico_printf( PICO_NORMAL, " Couldn't allocate memory!\n");
dup_index = 0;
for(i=0; i<fm_head->numXYZ; i++)
{
p_index_LUT2 = p_index_LUT[i].next;
while (p_index_LUT2 != NULL)
{
p_index_LUT_DUPS[p_index_LUT2->Vert].OldVert = i;
p_index_LUT_DUPS[p_index_LUT2->Vert].ST = p_index_LUT2->ST;
dup_index++;
p_index_LUT2 = p_index_LUT2->next;
}
}
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, " Dups = %d\n", dups);
_pico_printf( PICO_NORMAL, " Dup Index = %d\n", dup_index);
#endif
for(i=0; i<fm_head->numXYZ; i++)
{
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, "Vert: %4d\t%4d",i, p_index_LUT[i].ST);
#endif
if (p_index_LUT[i].next != NULL)
{
p_index_LUT2 = p_index_LUT[i].next;
do {
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, " %4d %4d", p_index_LUT2->Vert, p_index_LUT2->ST);
#endif
p_index_LUT2 = p_index_LUT2->next;
} while ( p_index_LUT2 != NULL);
}
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_NORMAL, "\n");
#endif
}
#ifdef FM_VERBOSE_DBG
for(i=0; i<dup_index; i++)
_pico_printf( PICO_NORMAL, " Dup Index #%d OldVert: %d ST: %d\n", i, p_index_LUT_DUPS[i].OldVert, p_index_LUT_DUPS[i].ST);
triangle = tri_verts;
for(i=0; i<fm_head->numTris; i++)
{
for(j=0; j<3; j++)
_pico_printf( PICO_NORMAL, "Tri #%d, Vert %d:\t XYZ:%d ST:%d\n", i, j, triangle->index_xyz[j], triangle->index_st[j]);
_pico_printf( PICO_NORMAL, "\n");
triangle++;
}
#endif
// Build Picomodel
triangle = tri_verts;
for( j = 0; j < fm_head->numTris; j++, triangle++ )
{
PicoSetSurfaceIndex( picoSurface, j*3 , triangle->index_xyz[0] );
PicoSetSurfaceIndex( picoSurface, j*3+1 , triangle->index_xyz[1] );
PicoSetSurfaceIndex( picoSurface, j*3+2 , triangle->index_xyz[2] );
}
vert = (fm_vert_normal_t*) ((picoByte_t*) (frame->verts) );
for(i=0; i< fm_head->numXYZ; i++, vert++)
{
/* set vertex origin */
xyz[ 0 ] = vert->v[0] * frame->header.scale[0] + frame->header.translate[0];
xyz[ 1 ] = vert->v[1] * frame->header.scale[1] + frame->header.translate[1];
xyz[ 2 ] = vert->v[2] * frame->header.scale[2] + frame->header.translate[2];
PicoSetSurfaceXYZ( picoSurface, i , xyz );
/* set normal */
normal[ 0 ] = fm_normals[vert->lightnormalindex][0];
normal[ 1 ] = fm_normals[vert->lightnormalindex][1];
normal[ 2 ] = fm_normals[vert->lightnormalindex][2];
PicoSetSurfaceNormal( picoSurface, i , normal );
/* set st coords */
st[ 0 ] = ((texCoord[p_index_LUT[i].ST].s) / ((float)fm_head->skinWidth));
st[ 1 ] = (texCoord[p_index_LUT[i].ST].t / ((float)fm_head->skinHeight));
PicoSetSurfaceST( picoSurface, 0, i , st );
}
if (dups)
{
for(i=0; i<dups; i++)
{
j = p_index_LUT_DUPS[i].OldVert;
/* set vertex origin */
xyz[ 0 ] = frame->verts[j].v[0] * frame->header.scale[0] + frame->header.translate[0];
xyz[ 1 ] = frame->verts[j].v[1] * frame->header.scale[1] + frame->header.translate[1];
xyz[ 2 ] = frame->verts[j].v[2] * frame->header.scale[2] + frame->header.translate[2];
PicoSetSurfaceXYZ( picoSurface, i + fm_head->numXYZ , xyz );
/* set normal */
normal[ 0 ] = fm_normals[frame->verts[j].lightnormalindex][0];
normal[ 1 ] = fm_normals[frame->verts[j].lightnormalindex][1];
normal[ 2 ] = fm_normals[frame->verts[j].lightnormalindex][2];
PicoSetSurfaceNormal( picoSurface, i + fm_head->numXYZ , normal );
/* set st coords */
st[ 0 ] = ((texCoord[p_index_LUT_DUPS[i].ST].s) / ((float)fm_head->skinWidth));
st[ 1 ] = (texCoord[p_index_LUT_DUPS[i].ST].t / ((float)fm_head->skinHeight));
PicoSetSurfaceST( picoSurface, 0, i + fm_head->numXYZ , st );
}
}
/* set color */
PicoSetSurfaceColor( picoSurface, 0, 0, color );
// Free up malloc'ed LL entries
for(i=0; i<fm_head->numXYZ; i++)
{
if(p_index_LUT[i].next != NULL)
{
p_index_LUT2 = p_index_LUT[i].next;
do {
p_index_LUT3 = p_index_LUT2->next;
_pico_free(p_index_LUT2);
p_index_LUT2 = p_index_LUT3;
dups--;
} while (p_index_LUT2 != NULL);
}
}
if (dups)
_pico_printf(PICO_WARNING, " Not all LL mallocs freed\n");
// Free malloc'ed LUTs
_pico_free(p_index_LUT);
_pico_free(p_index_LUT_DUPS);
/* return the new pico model */
_pico_free(bb0);
return picoModel;
}
static picoModel_t *_md2_load( PM_PARAMS_LOAD )
{
int i, j, dups, dup_index;
index_LUT_t *p_index_LUT, *p_index_LUT2, *p_index_LUT3;
index_DUP_LUT_t *p_index_LUT_DUPS;
md2Triangle_t *p_md2Triangle;
char skinname[ MD2_MAX_SKINNAME ];
md2_t *md2;
md2St_t *texCoord;
md2Frame_t *frame;
md2Triangle_t *triangle;
md2XyzNormal_t *vertex;
picoByte_t *bb, *bb0;
picoModel_t *picoModel;
picoSurface_t *picoSurface;
picoShader_t *picoShader;
picoVec3_t xyz, normal;
picoVec2_t st;
picoColor_t color;
/* set as md2 */
bb0 = bb = (picoByte_t*) _pico_alloc(bufSize);
memcpy(bb, buffer, bufSize);
md2 = (md2_t*) bb;
/* check ident and version */
if( *((const int*) md2->magic) != *((const int*) MD2_MAGIC) || _pico_little_long( md2->version ) != MD2_VERSION )
{
/* not an md2 file (todo: set error) */
_pico_printf( PICO_ERROR, "%s is not an MD2 File!", fileName );
_pico_free(bb0);
return NULL;
}
// swap md2
md2->version = _pico_little_long( md2->version );
md2->skinWidth = _pico_little_long( md2->skinWidth );
md2->skinHeight = _pico_little_long( md2->skinHeight );
md2->frameSize = _pico_little_long( md2->frameSize );
md2->numSkins = _pico_little_long( md2->numSkins );
md2->numXYZ = _pico_little_long( md2->numXYZ );
md2->numST = _pico_little_long( md2->numST );
md2->numTris = _pico_little_long( md2->numTris );
md2->numGLCmds = _pico_little_long( md2->numGLCmds );
md2->numFrames = _pico_little_long( md2->numFrames );
md2->ofsSkins = _pico_little_long( md2->ofsSkins );
md2->ofsST = _pico_little_long( md2->ofsST );
md2->ofsTris = _pico_little_long( md2->ofsTris );
md2->ofsFrames = _pico_little_long( md2->ofsFrames );
md2->ofsGLCmds = _pico_little_long( md2->ofsGLCmds );
md2->ofsEnd = _pico_little_long( md2->ofsEnd );
// do frame check
if( md2->numFrames < 1 )
{
_pico_printf( PICO_ERROR, "%s has 0 frames!", fileName );
_pico_free(bb0);
return NULL;
}
if( frameNum < 0 || frameNum >= md2->numFrames )
{
_pico_printf( PICO_ERROR, "Invalid or out-of-range MD2 frame specified" );
_pico_free(bb0);
return NULL;
}
// Setup Frame
frame = (md2Frame_t *) (bb + md2->ofsFrames + (sizeof(md2Frame_t) * frameNum));
// swap frame scale and translation
for( i = 0; i < 3; i++ )
{
frame->scale[ i ] = _pico_little_float( frame->scale[ i ] );
frame->translate[ i ] = _pico_little_float( frame->translate[ i ] );
}
// swap triangles
triangle = (md2Triangle_t *) ((picoByte_t *) (bb + md2->ofsTris) );
for( i = 0; i < md2->numTris; i++, triangle++ )
{
for( j = 0; j < 3; j++ )
{
triangle->index_xyz[ j ] = _pico_little_short( triangle->index_xyz[ j ] );
triangle->index_st[ j ] = _pico_little_short( triangle->index_st[ j ] );
}
}
// swap st coords
texCoord = (md2St_t*) ((picoByte_t *) (bb + md2->ofsST) );
for( i = 0; i < md2->numST; i++, texCoord++ )
{
texCoord->s = _pico_little_short( texCoord->s );
texCoord->t = _pico_little_short( texCoord->t );
}
// set Skin Name
strncpy(skinname, (const char *) (bb + md2->ofsSkins), MD2_MAX_SKINNAME );
// Print out md2 values
_pico_printf(PICO_VERBOSE,"Skins: %d Verts: %d STs: %d Triangles: %d Frames: %d\nSkin Name \"%s\"\n", md2->numSkins, md2->numXYZ, md2->numST, md2->numTris, md2->numFrames, &skinname );
// detox Skin name
_pico_setfext( skinname, "" );
_pico_unixify( skinname );
/* create new pico model */
picoModel = PicoNewModel();
if( picoModel == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model" );
_pico_free(bb0);
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( picoModel, frameNum );
PicoSetModelNumFrames( picoModel, md2->numFrames ); /* sea */
PicoSetModelName( picoModel, fileName );
PicoSetModelFileName( picoModel, fileName );
// allocate new pico surface
picoSurface = PicoNewSurface( picoModel );
if( picoSurface == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model surface" );
PicoFreeModel( picoModel );
_pico_free(bb0);
return NULL;
}
PicoSetSurfaceType( picoSurface, PICO_TRIANGLES );
PicoSetSurfaceName( picoSurface, frame->name );
picoShader = PicoNewShader( picoModel );
if( picoShader == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model shader" );
PicoFreeModel( picoModel );
_pico_free(bb0);
return NULL;
}
PicoSetShaderName( picoShader, skinname );
// associate current surface with newly created shader
PicoSetSurfaceShader( picoSurface, picoShader );
// Init LUT for Verts
p_index_LUT = (index_LUT_t *)_pico_alloc(sizeof(index_LUT_t) * md2->numXYZ);
for(i=0; i<md2->numXYZ; i++)
{
p_index_LUT[i].Vert = -1;
p_index_LUT[i].ST = -1;
p_index_LUT[i].next = NULL;
}
// Fill in Look Up Table, and allocate/fill Linked List from vert array as needed for dup STs per Vert.
dups = 0;
for(i=0; i<md2->numTris; i++)
{
p_md2Triangle = (md2Triangle_t *) ( bb + md2->ofsTris + (sizeof(md2Triangle_t)*i));
for(j=0; j<3; j++)
{
if (p_index_LUT[p_md2Triangle->index_xyz[j]].ST == -1) // No Main Entry
p_index_LUT[p_md2Triangle->index_xyz[j]].ST = p_md2Triangle->index_st[j];
else if (p_md2Triangle->index_st[j] == p_index_LUT[p_md2Triangle->index_xyz[j]].ST ) // Equal to Main Entry
continue;
else if ( (p_index_LUT[p_md2Triangle->index_xyz[j]].next == NULL) ) // Not equal to Main entry, and no LL entry
{ // Add first entry of LL from Main
p_index_LUT2 = (index_LUT_t *)_pico_alloc(sizeof(index_LUT_t));
if (p_index_LUT2 == NULL)
_pico_printf( PICO_ERROR," Couldn't allocate memory!\n");
p_index_LUT[p_md2Triangle->index_xyz[j]].next = (index_LUT_t *)p_index_LUT2;
p_index_LUT2->Vert = dups;
p_index_LUT2->ST = p_md2Triangle->index_st[j];
p_index_LUT2->next = NULL;
p_md2Triangle->index_xyz[j] = dups + md2->numXYZ; // Make change in Tri hunk
dups++;
}
else // Try to find in LL from Main Entry
{
p_index_LUT3 = p_index_LUT2 = p_index_LUT[p_md2Triangle->index_xyz[j]].next;
while ( (p_index_LUT2 != NULL) && (p_md2Triangle->index_xyz[j] != p_index_LUT2->Vert) ) // Walk down LL
{
p_index_LUT3 = p_index_LUT2;
p_index_LUT2 = p_index_LUT2->next;
}
p_index_LUT2 = p_index_LUT3;
if ( p_md2Triangle->index_st[j] == p_index_LUT2->ST ) // Found it
{
p_md2Triangle->index_xyz[j] = p_index_LUT2->Vert + md2->numXYZ; // Make change in Tri hunk
continue;
}
if ( p_index_LUT2->next == NULL) // Didn't find it. Add entry to LL.
{
// Add the Entry
p_index_LUT3 = (index_LUT_t *)_pico_alloc(sizeof(index_LUT_t));
if (p_index_LUT3 == NULL)
_pico_printf( PICO_ERROR," Couldn't allocate memory!\n");
p_index_LUT2->next = (index_LUT_t *)p_index_LUT3;
p_index_LUT3->Vert = p_md2Triangle->index_xyz[j];
p_index_LUT3->ST = p_md2Triangle->index_st[j];
p_index_LUT3->next = NULL;
p_md2Triangle->index_xyz[j] = dups + md2->numXYZ; // Make change in Tri hunk
dups++;
}
}
}
}
// malloc and build array for Dup STs
p_index_LUT_DUPS = (index_DUP_LUT_t *)_pico_alloc(sizeof(index_DUP_LUT_t) * dups);
if (p_index_LUT_DUPS == NULL)
_pico_printf( PICO_ERROR," Couldn't allocate memory!\n");
dup_index = 0;
for(i=0; i<md2->numXYZ; i++)
{
p_index_LUT2 = p_index_LUT[i].next;
while (p_index_LUT2 != NULL)
{
p_index_LUT_DUPS[p_index_LUT2->Vert].OldVert = i;
p_index_LUT_DUPS[p_index_LUT2->Vert].ST = p_index_LUT2->ST;
dup_index++;
p_index_LUT2 = p_index_LUT2->next;
}
}
// Build Picomodel
triangle = (md2Triangle_t *) ((picoByte_t *) (bb + md2->ofsTris) );
texCoord = (md2St_t*) ((picoByte_t *) (bb + md2->ofsST) );
vertex = (md2XyzNormal_t*) ((picoByte_t*) (frame->verts) );
for( j = 0; j < md2->numTris; j++, triangle++ )
{
PicoSetSurfaceIndex( picoSurface, j*3 , triangle->index_xyz[0] );
PicoSetSurfaceIndex( picoSurface, j*3+1 , triangle->index_xyz[1] );
PicoSetSurfaceIndex( picoSurface, j*3+2 , triangle->index_xyz[2] );
}
for(i=0; i< md2->numXYZ; i++, vertex++)
{
/* set vertex origin */
xyz[ 0 ] = vertex->v[0] * frame->scale[0] + frame->translate[0];
xyz[ 1 ] = vertex->v[1] * frame->scale[1] + frame->translate[1];
xyz[ 2 ] = vertex->v[2] * frame->scale[2] + frame->translate[2];
PicoSetSurfaceXYZ( picoSurface, i , xyz );
/* set normal */
normal[ 0 ] = md2_normals[vertex->lightnormalindex][0];
normal[ 1 ] = md2_normals[vertex->lightnormalindex][1];
normal[ 2 ] = md2_normals[vertex->lightnormalindex][2];
PicoSetSurfaceNormal( picoSurface, i , normal );
/* set st coords */
st[ 0 ] = ((texCoord[p_index_LUT[i].ST].s) / ((float)md2->skinWidth));
st[ 1 ] = (texCoord[p_index_LUT[i].ST].t / ((float)md2->skinHeight));
PicoSetSurfaceST( picoSurface, 0, i , st );
}
if (dups)
{
for(i=0; i<dups; i++)
{
j = p_index_LUT_DUPS[i].OldVert;
/* set vertex origin */
xyz[ 0 ] = frame->verts[j].v[0] * frame->scale[0] + frame->translate[0];
xyz[ 1 ] = frame->verts[j].v[1] * frame->scale[1] + frame->translate[1];
xyz[ 2 ] = frame->verts[j].v[2] * frame->scale[2] + frame->translate[2];
PicoSetSurfaceXYZ( picoSurface, i + md2->numXYZ , xyz );
/* set normal */
normal[ 0 ] = md2_normals[frame->verts[j].lightnormalindex][0];
normal[ 1 ] = md2_normals[frame->verts[j].lightnormalindex][1];
normal[ 2 ] = md2_normals[frame->verts[j].lightnormalindex][2];
PicoSetSurfaceNormal( picoSurface, i + md2->numXYZ , normal );
/* set st coords */
st[ 0 ] = ((texCoord[p_index_LUT_DUPS[i].ST].s) / ((float)md2->skinWidth));
st[ 1 ] = (texCoord[p_index_LUT_DUPS[i].ST].t / ((float)md2->skinHeight));
PicoSetSurfaceST( picoSurface, 0, i + md2->numXYZ , st );
}
}
/* set color */
PicoSetSurfaceColor( picoSurface, 0, 0, color );
// Free up malloc'ed LL entries
for(i=0; i<md2->numXYZ; i++)
{
if(p_index_LUT[i].next != NULL)
{
p_index_LUT2 = p_index_LUT[i].next;
do {
p_index_LUT3 = p_index_LUT2->next;
_pico_free(p_index_LUT2);
p_index_LUT2 = p_index_LUT3;
dups--;
} while (p_index_LUT2 != NULL);
}
}
if (dups)
_pico_printf(PICO_WARNING, " Not all LL mallocs freed\n");
// Free malloc'ed LUTs
_pico_free(p_index_LUT);
_pico_free(p_index_LUT_DUPS);
/* return the new pico model */
_pico_free(bb0);
return picoModel;
}
static picoModel_t *_terrain_load( PM_PARAMS_LOAD ){
int i, j, v, pw[ 5 ], r;
picoParser_t *p;
char *shader, *heightmapFile, *colormapFile;
picoVec3_t scale, origin;
unsigned char *imageBuffer;
int imageBufSize, w, h, cw, ch;
unsigned char *heightmap, *colormap, *heightPixel, *colorPixel;
picoModel_t *picoModel;
picoSurface_t *picoSurface;
picoShader_t *picoShader;
picoVec3_t xyz, normal;
picoVec2_t st;
picoColor_t color;
/* create pico parser */
p = _pico_new_parser( (const picoByte_t*) buffer, bufSize );
if ( p == NULL ) {
return NULL;
}
/* get first token */
if ( _pico_parse_first( p ) == NULL ) {
return NULL;
}
/* check first token */
if ( _pico_stricmp( p->token, "picoterrain" ) ) {
_pico_printf( PICO_ERROR, "Invalid PicoTerrain model" );
_pico_free_parser( p );
return NULL;
}
/* setup */
shader = heightmapFile = colormapFile = NULL;
_pico_set_vec( scale, 512, 512, 32 );
/* parse ase model file */
while ( 1 )
{
/* get first token on line */
if ( !_pico_parse_first( p ) ) {
break;
}
/* skip empty lines */
if ( !p->token || !p->token[ 0 ] ) {
continue;
}
/* shader */
if ( !_pico_stricmp( p->token, "shader" ) ) {
if ( _pico_parse( p, 0 ) && p->token[ 0 ] ) {
if ( shader != NULL ) {
_pico_free( shader );
}
shader = _pico_clone_alloc( p->token );
}
}
/* heightmap */
else if ( !_pico_stricmp( p->token, "heightmap" ) ) {
if ( _pico_parse( p, 0 ) && p->token[ 0 ] ) {
if ( heightmapFile != NULL ) {
_pico_free( heightmapFile );
}
heightmapFile = _pico_clone_alloc( p->token );
}
}
/* colormap */
else if ( !_pico_stricmp( p->token, "colormap" ) ) {
if ( _pico_parse( p, 0 ) && p->token[ 0 ] ) {
if ( colormapFile != NULL ) {
_pico_free( colormapFile );
}
colormapFile = _pico_clone_alloc( p->token );
}
}
/* scale */
else if ( !_pico_stricmp( p->token, "scale" ) ) {
_pico_parse_vec( p, scale );
}
/* skip unparsed rest of line and continue */
_pico_parse_skip_rest( p );
}
/* ----------------------------------------------------------------- */
/* load heightmap */
heightmap = imageBuffer = NULL;
_pico_load_file( heightmapFile, &imageBuffer, &imageBufSize );
_terrain_load_tga_buffer( imageBuffer, &heightmap, &w, &h );
_pico_free( heightmapFile );
_pico_free_file( imageBuffer );
if ( heightmap == NULL || w < 2 || h < 2 ) {
_pico_printf( PICO_ERROR, "PicoTerrain model with invalid heightmap" );
if ( shader != NULL ) {
_pico_free( shader );
}
if ( colormapFile != NULL ) {
_pico_free( colormapFile );
}
_pico_free_parser( p );
return NULL;
}
/* set origin (bottom lowest corner of terrain mesh) */
_pico_set_vec( origin, ( w / -2 ) * scale[ 0 ], ( h / -2 ) * scale[ 1 ], -128 * scale[ 2 ] );
/* load colormap */
colormap = imageBuffer = NULL;
_pico_load_file( colormapFile, &imageBuffer, &imageBufSize );
_terrain_load_tga_buffer( imageBuffer, &colormap, &cw, &ch );
_pico_free( colormapFile );
_pico_free_file( imageBuffer );
if ( cw != w || ch != h ) {
_pico_printf( PICO_WARNING, "PicoTerrain colormap/heightmap size mismatch" );
_pico_free( colormap );
colormap = NULL;
}
/* ----------------------------------------------------------------- */
/* create new pico model */
picoModel = PicoNewModel();
if ( picoModel == NULL ) {
_pico_printf( PICO_ERROR, "Unable to allocate a new model" );
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( picoModel, frameNum );
PicoSetModelNumFrames( picoModel, 1 ); /* sea */
PicoSetModelName( picoModel, fileName );
PicoSetModelFileName( picoModel, fileName );
/* allocate new pico surface */
picoSurface = PicoNewSurface( picoModel );
if ( picoSurface == NULL ) {
_pico_printf( PICO_ERROR, "Unable to allocate a new model surface" );
PicoFreeModel( picoModel ); /* sea */
return NULL;
}
/* terrain surfaces are triangle meshes */
PicoSetSurfaceType( picoSurface, PICO_TRIANGLES );
/* set surface name */
PicoSetSurfaceName( picoSurface, "picoterrain" );
/* create new pico shader */
picoShader = PicoNewShader( picoModel );
if ( picoShader == NULL ) {
_pico_printf( PICO_ERROR, "Unable to allocate a new model shader" );
PicoFreeModel( picoModel );
_pico_free( shader );
return NULL;
}
/* detox and set shader name */
_pico_setfext( shader, "" );
_pico_unixify( shader );
PicoSetShaderName( picoShader, shader );
_pico_free( shader );
/* associate current surface with newly created shader */
PicoSetSurfaceShader( picoSurface, picoShader );
/* make bogus normal */
_pico_set_vec( normal, 0.0f, 0.0f, 0.0f );
/* create mesh */
for ( j = 0; j < h; j++ )
{
for ( i = 0; i < w; i++ )
{
/* get pointers */
v = i + ( j * w );
heightPixel = heightmap + v * 4;
colorPixel = colormap
? colormap + v * 4
: NULL;
/* set xyz */
_pico_set_vec( xyz, origin[ 0 ] + scale[ 0 ] * i,
origin[ 1 ] + scale[ 1 ] * j,
origin[ 2 ] + scale[ 2 ] * heightPixel[ 0 ] );
PicoSetSurfaceXYZ( picoSurface, v, xyz );
/* set normal */
PicoSetSurfaceNormal( picoSurface, v, normal );
/* set st */
st[ 0 ] = (float) i;
st[ 1 ] = (float) j;
PicoSetSurfaceST( picoSurface, 0, v, st );
/* set color */
if ( colorPixel != NULL ) {
_pico_set_color( color, colorPixel[ 0 ], colorPixel[ 1 ], colorPixel[ 2 ], colorPixel[ 3 ] );
}
else{
_pico_set_color( color, 255, 255, 255, 255 );
}
PicoSetSurfaceColor( picoSurface, 0, v, color );
/* set triangles (zero alpha in heightmap suppresses this quad) */
if ( i < ( w - 1 ) && j < ( h - 1 ) && heightPixel[ 3 ] >= 128 ) {
/* set indexes */
pw[ 0 ] = i + ( j * w );
pw[ 1 ] = i + ( ( j + 1 ) * w );
pw[ 2 ] = i + 1 + ( ( j + 1 ) * w );
pw[ 3 ] = i + 1 + ( j * w );
pw[ 4 ] = i + ( j * w ); /* same as pw[ 0 ] */
/* set radix */
r = ( i + j ) & 1;
/* make first triangle */
PicoSetSurfaceIndex( picoSurface, ( v * 6 + 0 ), (picoIndex_t) pw[ r + 0 ] );
PicoSetSurfaceIndex( picoSurface, ( v * 6 + 1 ), (picoIndex_t) pw[ r + 1 ] );
PicoSetSurfaceIndex( picoSurface, ( v * 6 + 2 ), (picoIndex_t) pw[ r + 2 ] );
/* make second triangle */
PicoSetSurfaceIndex( picoSurface, ( v * 6 + 3 ), (picoIndex_t) pw[ r + 0 ] );
PicoSetSurfaceIndex( picoSurface, ( v * 6 + 4 ), (picoIndex_t) pw[ r + 2 ] );
PicoSetSurfaceIndex( picoSurface, ( v * 6 + 5 ), (picoIndex_t) pw[ r + 3 ] );
}
}
}
/* free stuff */
_pico_free_parser( p );
_pico_free( heightmap );
_pico_free( colormap );
/* return the new pico model */
return picoModel;
}
static picoModel_t *_md2_load( PM_PARAMS_LOAD )
{
int i, j;
short tot_numVerts;
index_LUT_t *p_index_LUT;
md2Triangle_t *p_md2Triangle;
char skinname[ MD2_MAX_SKINNAME ];
md2_t *md2;
md2St_t *texCoord;
md2Frame_t *frame;
md2Triangle_t *triangle;
md2XyzNormal_t *vertex;
picoByte_t *bb;
picoModel_t *picoModel;
picoSurface_t *picoSurface;
picoShader_t *picoShader;
picoVec3_t xyz, normal;
picoVec2_t st;
picoColor_t color;
/* set as md2 */
bb = (picoByte_t*) buffer;
md2 = (md2_t*) buffer;
/* check ident and version */
if( *((int*) md2->magic) != *((int*) MD2_MAGIC) || _pico_little_long( md2->version ) != MD2_VERSION )
{
/* not an md2 file (todo: set error) */
_pico_printf( PICO_ERROR, "%s is not an MD2 File!", fileName );
return NULL;
}
// swap md2
md2->version = _pico_little_long( md2->version );
md2->skinWidth = _pico_little_long( md2->skinWidth );
md2->skinHeight = _pico_little_long( md2->skinHeight );
md2->frameSize = _pico_little_long( md2->frameSize );
md2->numSkins = _pico_little_long( md2->numSkins );
md2->numXYZ = _pico_little_long( md2->numXYZ );
md2->numST = _pico_little_long( md2->numST );
md2->numTris = _pico_little_long( md2->numTris );
md2->numGLCmds = _pico_little_long( md2->numGLCmds );
md2->numFrames = _pico_little_long( md2->numFrames );
md2->ofsSkins = _pico_little_long( md2->ofsSkins );
md2->ofsST = _pico_little_long( md2->ofsST );
md2->ofsTris = _pico_little_long( md2->ofsTris );
md2->ofsFrames = _pico_little_long( md2->ofsFrames );
md2->ofsGLCmds = _pico_little_long( md2->ofsGLCmds );
md2->ofsEnd = _pico_little_long( md2->ofsEnd );
// do frame check
if( md2->numFrames < 1 )
{
_pico_printf( PICO_ERROR, "%s has 0 frames!", fileName );
return NULL;
}
if( frameNum < 0 || frameNum >= md2->numFrames )
{
_pico_printf( PICO_ERROR, "Invalid or out-of-range MD2 frame specified" );
return NULL;
}
// Setup Frame
frame = (md2Frame_t *) (bb + md2->ofsFrames + (sizeof(md2Frame_t) * frameNum));
// swap frame scale and translation
for( i = 0; i < 3; i++ )
{
frame->scale[ i ] = _pico_little_float( frame->scale[ i ] );
frame->translate[ i ] = _pico_little_float( frame->translate[ i ] );
}
// swap triangles
triangle = (md2Triangle_t *) ((picoByte_t *) (bb + md2->ofsTris) );
for( i = 0; i < md2->numTris; i++, triangle++ )
{
for( j = 0; j < 3; j++ )
{
triangle->index_xyz[ j ] = _pico_little_short( triangle->index_xyz[ j ] );
triangle->index_st[ j ] = _pico_little_short( triangle->index_st[ j ] );
}
}
// swap st coords
texCoord = (md2St_t*) ((picoByte_t *) (bb + md2->ofsST) );
for( i = 0; i < md2->numST; i++, texCoord++ )
{
texCoord->s = _pico_little_short( texCoord->s );
texCoord->t = _pico_little_short( texCoord->t );
}
// Print out md2 values
_pico_printf(PICO_VERBOSE,"Skins: %d Verts: %d STs: %d Triangles: %d Frames: %d\nSkin Name \"%s\"\n", md2->numSkins, md2->numXYZ, md2->numST, md2->numTris, md2->numFrames, &skinname );
/* create new pico model */
picoModel = PicoNewModel();
if( picoModel == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model" );
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( picoModel, frameNum );
PicoSetModelNumFrames( picoModel, md2->numFrames ); /* sea */
PicoSetModelName( picoModel, fileName );
PicoSetModelFileName( picoModel, fileName );
for (i = 0; i < md2->numSkins; i++) {
char *offsetSkin = (char*) (bb + md2->ofsSkins) + i * MD2_MAX_SKINNAME;
/* set Skin Name */
strncpy(skinname, offsetSkin, MD2_MAX_SKINNAME);
/* detox Skin name */
if (skinname[0] == '.') {/* special case ufoai skinpath */
char path[MD2_MAX_SKINNAME];
char skinnameRelative[MD2_MAX_SKINNAME];
strncpy(path, fileName, MD2_MAX_SKINNAME);
strncpy(skinnameRelative, skinname, MD2_MAX_SKINNAME);
_pico_unixify(path);
for (j = MD2_MAX_SKINNAME; j--;) {/* skip filename */
if (path[j] == '/')
break;
path[j] = '\0';
}
snprintf(skinname, MD2_MAX_SKINNAME, "%s%s", path, &skinnameRelative[1]);
}
_pico_setfext(skinname, "");
picoShader = PicoNewShader(picoModel);
if (picoShader == NULL) {
_pico_printf(PICO_ERROR, "Unable to allocate a new model shader");
PicoFreeModel(picoModel);
return NULL;
}
PicoSetShaderName(picoShader, skinname);
}
// allocate new pico surface
picoSurface = PicoNewSurface( picoModel );
if( picoSurface == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model surface" );
PicoFreeModel( picoModel );
return NULL;
}
PicoSetSurfaceType( picoSurface, PICO_TRIANGLES );
PicoSetSurfaceName( picoSurface, frame->name );
picoShader = PicoNewShader( picoModel );
if( picoShader == NULL )
{
_pico_printf( PICO_ERROR, "Unable to allocate a new model shader" );
PicoFreeModel( picoModel );
return NULL;
}
PicoSetShaderName( picoShader, skinname );
// associate current surface with newly created shader
PicoSetSurfaceShader( picoSurface, picoShader );
// Init LUT for Verts
p_index_LUT = (index_LUT_t *)_pico_alloc(sizeof(index_LUT_t) * md2->numXYZ);
for(i=0; i<md2->numXYZ; i++)
{
p_index_LUT[i].Vert = -1;
p_index_LUT[i].ST = -1;
}
/* Fill in Look Up Table, and allocate/fill Linked List from vert array as needed for dup STs per Vert. */
tot_numVerts = md2->numXYZ;
for (i = 0; i < md2->numTris; i++) {
p_md2Triangle = (md2Triangle_t *) (bb + md2->ofsTris + (sizeof(md2Triangle_t) * i));
for (j = 0; j < 3; j++) {
if (p_index_LUT[p_md2Triangle->index_xyz[j]].ST == -1) /* No Main Entry */
p_index_LUT[p_md2Triangle->index_xyz[j]].ST = p_md2Triangle->index_st[j];
}
}
/* Build Picomodel */
triangle = (md2Triangle_t *) ((picoByte_t *) (bb + md2->ofsTris));
for (j = 0; j < md2->numTris; j++, triangle++) {
PicoSetSurfaceIndex(picoSurface, j * 3, triangle->index_xyz[0]);
PicoSetSurfaceIndex(picoSurface, j * 3 + 1, triangle->index_xyz[1]);
PicoSetSurfaceIndex(picoSurface, j * 3 + 2, triangle->index_xyz[2]);
}
_pico_set_color(color, 255, 255, 255, 255);
texCoord = (md2St_t*) ((picoByte_t *) (bb + md2->ofsST));
vertex = (md2XyzNormal_t*) ((picoByte_t*) (frame->verts));
for (i = 0; i < md2->numXYZ; i++, vertex++) {
/* set vertex origin */
xyz[0] = vertex->v[0] * frame->scale[0] + frame->translate[0];
xyz[1] = vertex->v[1] * frame->scale[1] + frame->translate[1];
xyz[2] = vertex->v[2] * frame->scale[2] + frame->translate[2];
PicoSetSurfaceXYZ(picoSurface, i, xyz);
/* set normal */
normal[0] = md2_normals[vertex->lightnormalindex][0];
normal[1] = md2_normals[vertex->lightnormalindex][1];
normal[2] = md2_normals[vertex->lightnormalindex][2];
PicoSetSurfaceNormal(picoSurface, i, normal);
/* set st coords */
st[0] = (float) texCoord[p_index_LUT[i].ST].s / (float) md2->skinWidth;
st[1] = (float) texCoord[p_index_LUT[i].ST].t / (float) md2->skinHeight;
PicoSetSurfaceST(picoSurface, 0, i, st);
/* set color */
PicoSetSurfaceColor(picoSurface, 0, i, color);
}
/* Free malloc'ed LUTs */
_pico_free(p_index_LUT);
/* return the new pico model */
return picoModel;
}
picoModel_t *LoadModel(char *name, int frame)
{
int i;
picoModel_t *model, **pm;
/* init */
if(numPicoModels <= 0)
memset(picoModels, 0, sizeof(picoModels));
/* dummy check */
if(name == NULL || name[0] == '\0')
return NULL;
/* try to find existing picoModel */
model = FindModel(name, frame);
if(model != NULL)
return model;
/* none found, so find first non-null picoModel */
pm = NULL;
for(i = 0; i < MAX_MODELS; i++)
{
if(picoModels[i] == NULL)
{
pm = &picoModels[i];
break;
}
}
/* too many picoModels? */
if(pm == NULL)
Error("MAX_MODELS (%d) exceeded, there are too many model files referenced by the map.", MAX_MODELS);
/* attempt to parse model */
*pm = PicoLoadModel((char *)name, frame);
/* if loading failed, make a bogus model to silence the rest of the warnings */
if(*pm == NULL)
{
/* allocate a new model */
*pm = PicoNewModel();
if(*pm == NULL)
return NULL;
/* set data */
PicoSetModelName(*pm, name);
PicoSetModelFrameNum(*pm, frame);
}
/* debug code */
#if 0
{
int numSurfaces, numVertexes;
picoSurface_t *ps;
Sys_Printf("Model %s\n", name);
numSurfaces = PicoGetModelNumSurfaces(*pm);
for(i = 0; i < numSurfaces; i++)
{
ps = PicoGetModelSurface(*pm, i);
numVertexes = PicoGetSurfaceNumVertexes(ps);
Sys_Printf("Surface %d has %d vertexes\n", i, numVertexes);
}
}
#endif
/* set count */
if(*pm != NULL)
numPicoModels++;
/* return the picoModel */
return *pm;
}
/**
* @brief loads a wavefront obj model file.
*/
static picoModel_t *_obj_load (PM_PARAMS_LOAD)
{
TObjVertexData *vertexData = NULL;
picoModel_t *model;
picoSurface_t *curSurface = NULL;
picoParser_t *p;
int allocated;
int entries;
int numVerts = 0;
int numNormals = 0;
int numUVs = 0;
int curVertex = 0;
int curFace = 0;
picoShader_t *shader;
/* helper */
#define _obj_error_return(m) \
{ \
_pico_printf( PICO_ERROR,"%s in OBJ, line %d.",m,p->curLine); \
_pico_free_parser( p ); \
FreeObjVertexData( vertexData ); \
PicoFreeModel( model ); \
return NULL; \
}
/* alllocate a new pico parser */
p = _pico_new_parser((picoByte_t *) buffer, bufSize);
if (p == NULL)
return NULL;
/* create a new pico model */
model = PicoNewModel();
if (model == NULL) {
_pico_free_parser(p);
return NULL;
}
/* do model setup */
PicoSetModelFrameNum(model, frameNum);
PicoSetModelName(model, fileName);
PicoSetModelFileName(model, fileName);
/* try loading the materials; we don't handle the result */
shader = _obj_default_shader(model);
#if 0
shader = _obj_mtl_load(model);
#endif
/* parse obj line by line */
while (1) {
/* get first token on line */
if (_pico_parse_first(p) == NULL)
break;
/* skip empty lines */
if (p->token == NULL || !strlen(p->token))
continue;
/* skip comment lines */
if (p->token[0] == '#') {
_pico_parse_skip_rest(p);
continue;
}
/* vertex */
if (!_pico_stricmp(p->token, "v")) {
TObjVertexData *data;
picoVec3_t v;
vertexData = SizeObjVertexData(vertexData, numVerts + 1, &entries, &allocated);
if (vertexData == NULL)
_obj_error_return("Realloc of vertex data failed (1)");
data = &vertexData[numVerts++];
/* get and copy vertex */
if (!_pico_parse_vec(p, v))
_obj_error_return("Vertex parse error");
_pico_copy_vec(v, data->v);
#ifdef DEBUG_PM_OBJ_EX
printf("Vertex: x: %f y: %f z: %f\n",v[0],v[1],v[2]);
#endif
}
/* uv coord */
else if (!_pico_stricmp(p->token, "vt")) {
TObjVertexData *data;
picoVec2_t coord;
vertexData = SizeObjVertexData(vertexData, numUVs + 1, &entries, &allocated);
if (vertexData == NULL)
_obj_error_return("Realloc of vertex data failed (2)");
data = &vertexData[numUVs++];
/* get and copy tex coord */
if (!_pico_parse_vec2(p, coord))
_obj_error_return("UV coord parse error");
_pico_copy_vec2(coord, data->vt);
#ifdef DEBUG_PM_OBJ_EX
printf("TexCoord: u: %f v: %f\n",coord[0],coord[1]);
#endif
}
/* vertex normal */
else if (!_pico_stricmp(p->token, "vn")) {
TObjVertexData *data;
picoVec3_t n;
vertexData = SizeObjVertexData(vertexData, numNormals + 1, &entries, &allocated);
if (vertexData == NULL)
_obj_error_return("Realloc of vertex data failed (3)");
data = &vertexData[numNormals++];
/* get and copy vertex normal */
if (!_pico_parse_vec(p, n))
_obj_error_return("Vertex normal parse error");
_pico_copy_vec(n, data->vn);
#ifdef DEBUG_PM_OBJ_EX
printf("Normal: x: %f y: %f z: %f\n",n[0],n[1],n[2]);
#endif
}
/* new group (for us this means a new surface) */
else if (!_pico_stricmp(p->token, "g")) {
picoSurface_t *newSurface;
char *groupName;
/* get first group name (ignore 2nd,3rd,etc.) */
groupName = _pico_parse(p, 0);
if (groupName == NULL || !strlen(groupName)) {
/* some obj exporters feel like they don't need to */
/* supply a group name. so we gotta handle it here */
#if 1
strcpy(p->token, "default");
groupName = p->token;
#else
_obj_error_return("Invalid or missing group name");
#endif
}
/* allocate a pico surface */
newSurface = PicoNewSurface(model);
if (newSurface == NULL)
_obj_error_return("Error allocating surface");
/* reset face index for surface */
curFace = 0;
/* set ptr to current surface */
curSurface = newSurface;
/* we use triangle meshes */
PicoSetSurfaceType(newSurface, PICO_TRIANGLES);
/* set surface name */
PicoSetSurfaceName(newSurface, groupName);
/* associate current surface with newly created shader */
PicoSetSurfaceShader(newSurface, shader);
#ifdef DEBUG_PM_OBJ_EX
printf("Group: '%s'\n",groupName);
#endif
}
/* face (oh jesus, hopefully this will do the job right ;) */
else if (!_pico_stricmp(p->token, "f")) {
/* okay, this is a mess. some 3d apps seem to try being unique, */
/* hello cinema4d & 3d exploration, feel good today?, and save */
/* this crap in tons of different formats. gah, those screwed */
/* coders. tho the wavefront obj standard defines exactly two */
/* ways of storing face information. so, i really won't support */
/* such stupid extravaganza here! */
picoVec3_t verts[4];
picoVec3_t normals[4];
picoVec2_t coords[4];
int iv[4], has_v;
int ivt[4], has_vt = 0;
int ivn[4], has_vn = 0;
int have_quad = 0;
int slashcount;
int doubleslash;
int i;
/* group defs *must* come before faces */
if (curSurface == NULL)
_obj_error_return("No group defined for faces");
#ifdef DEBUG_PM_OBJ_EX
printf("Face: ");
#endif
/* read vertex/uv/normal indices for the first three face */
/* vertices (cause we only support triangles) into 'i*[]' */
/* store the actual vertex/uv/normal data in three arrays */
/* called 'verts','coords' and 'normals'. */
for (i = 0; i < 4; i++) {
char *str;
/* get next vertex index string (different */
/* formats are handled below) */
str = _pico_parse(p, 0);
if (str == NULL) {
/* just break for quads */
if (i == 3)
break;
/* error otherwise */
_obj_error_return("Face parse error");
}
/* if this is the fourth index string we're */
/* parsing we assume that we have a quad */
if (i == 3)
have_quad = 1;
/* get slash count once */
if (i == 0) {
slashcount = _pico_strchcount(str, '/');
doubleslash = strstr(str, "//") != NULL;
}
/* handle format 'v//vn' */
if (doubleslash && (slashcount == 2)) {
has_v = has_vn = 1;
sscanf(str, "%d//%d", &iv[i], &ivn[i]);
}
/* handle format 'v/vt/vn' */
else if (!doubleslash && (slashcount == 2)) {
has_v = has_vt = has_vn = 1;
sscanf(str, "%d/%d/%d", &iv[i], &ivt[i], &ivn[i]);
}
/* handle format 'v/vt' (non-standard fuckage) */
else if (!doubleslash && (slashcount == 1)) {
has_v = has_vt = 1;
sscanf(str, "%d/%d", &iv[i], &ivt[i]);
}
/* else assume face format 'v' */
/* (must have been invented by some bored granny) */
else {
/* get single vertex index */
has_v = 1;
iv[i] = atoi(str);
/* either invalid face format or out of range */
if (iv[i] == 0)
_obj_error_return("Invalid face format");
}
/* fix useless back references */
/* todo: check if this works as it is supposed to */
/* assign new indices */
if (iv[i] < 0)
iv[i] = (numVerts - iv[i]);
if (ivt[i] < 0)
ivt[i] = (numUVs - ivt[i]);
if (ivn[i] < 0)
ivn[i] = (numNormals - ivn[i]);
/* validate indices */
/* - commented out. index range checks will trigger
if (iv [ i ] < 1) iv [ i ] = 1;
if (ivt[ i ] < 1) ivt[ i ] = 1;
if (ivn[ i ] < 1) ivn[ i ] = 1;
*/
/* set vertex origin */
if (has_v) {
/* check vertex index range */
if (iv[i] < 1 || iv[i] > numVerts)
_obj_error_return("Vertex index out of range");
/* get vertex data */
verts[i][0] = vertexData[iv[i] - 1].v[0];
verts[i][1] = vertexData[iv[i] - 1].v[1];
verts[i][2] = vertexData[iv[i] - 1].v[2];
}
/* set vertex normal */
if (has_vn) {
/* check normal index range */
if (ivn[i] < 1 || ivn[i] > numNormals)
_obj_error_return("Normal index out of range");
/* get normal data */
normals[i][0] = vertexData[ivn[i] - 1].vn[0];
normals[i][1] = vertexData[ivn[i] - 1].vn[1];
normals[i][2] = vertexData[ivn[i] - 1].vn[2];
}
/* set texture coordinate */
if (has_vt) {
/* check uv index range */
if (ivt[i] < 1 || ivt[i] > numUVs)
_obj_error_return("UV coord index out of range");
/* get uv coord data */
coords[i][0] = vertexData[ivt[i] - 1].vt[0];
coords[i][1] = vertexData[ivt[i] - 1].vt[1];
coords[i][1] = -coords[i][1];
}
#ifdef DEBUG_PM_OBJ_EX
printf("(%4d",iv[ i ]);
if (has_vt) printf(" %4d",ivt[ i ]);
if (has_vn) printf(" %4d",ivn[ i ]);
printf(") ");
#endif
}
#ifdef DEBUG_PM_OBJ_EX
printf("\n");
#endif
/* now that we have extracted all the indices and have
* read the actual data we need to assign all the crap
* to our current pico surface */
if (has_v) {
int max = 3;
if (have_quad)
max = 4;
/* assign all surface information */
for (i = 0; i < max; i++) {
PicoSetSurfaceXYZ(curSurface, (curVertex + i), verts[i]);
PicoSetSurfaceST(curSurface, 0, (curVertex + i), coords[i]);
PicoSetSurfaceNormal(curSurface, (curVertex + i), normals[i]);
}
/* add our triangle (A B C) */
PicoSetSurfaceIndex(curSurface, (curFace * 3 + 2), (picoIndex_t) (curVertex + 0));
PicoSetSurfaceIndex(curSurface, (curFace * 3 + 1), (picoIndex_t) (curVertex + 1));
PicoSetSurfaceIndex(curSurface, (curFace * 3 + 0), (picoIndex_t) (curVertex + 2));
curFace++;
/* if we don't have a simple triangle, but a quad... */
if (have_quad) {
/* we have to add another triangle (2nd half of quad which is A C D) */
PicoSetSurfaceIndex(curSurface, (curFace * 3 + 2), (picoIndex_t) (curVertex + 0));
PicoSetSurfaceIndex(curSurface, (curFace * 3 + 1), (picoIndex_t) (curVertex + 2));
PicoSetSurfaceIndex(curSurface, (curFace * 3 + 0), (picoIndex_t) (curVertex + 3));
curFace++;
}
/* associate current surface with newly created shader */
PicoSetSurfaceShader(curSurface, shader);
/* increase vertex count */
curVertex += max;
}
}
/* skip unparsed rest of line and continue */
_pico_parse_skip_rest(p);
}
/* free memory used by temporary vertexdata */
FreeObjVertexData(vertexData);
/* return allocated pico model */
return model;
}
/* _obj_load:
* loads a wavefront obj model file.
*/
static picoModel_t *_obj_load( PM_PARAMS_LOAD ){
TObjVertexData *vertexData = NULL;
picoModel_t *model;
picoSurface_t *curSurface = NULL;
picoParser_t *p;
int allocated = 0;
int entries;
int numVerts = 0;
int numNormals = 0;
int numUVs = 0;
int curVertex = 0;
int curFace = 0;
int autoGroupNumber = 0;
char autoGroupNameBuf[64];
#define AUTO_GROUPNAME( namebuf ) \
sprintf( namebuf, "__autogroup_%d", autoGroupNumber++ )
#define NEW_SURFACE( name ) \
{ \
picoSurface_t *newSurface; \
/* allocate a pico surface */ \
newSurface = PicoNewSurface( model ); \
if ( newSurface == NULL ) { \
_obj_error_return( "Error allocating surface" ); } \
/* reset face index for surface */ \
curFace = 0; \
curVertex = 0; \
/* if we can, assign the previous shader to this surface */ \
if ( curSurface ) { \
PicoSetSurfaceShader( newSurface, curSurface->shader ); } \
/* set ptr to current surface */ \
curSurface = newSurface; \
/* we use triangle meshes */ \
PicoSetSurfaceType( newSurface,PICO_TRIANGLES ); \
/* set surface name */ \
PicoSetSurfaceName( newSurface,name ); \
}
/* helper */
#define _obj_error_return( m ) \
{ \
_pico_printf( PICO_ERROR,"%s in OBJ, line %d.",m,p->curLine ); \
_pico_free_parser( p ); \
FreeObjVertexData( vertexData ); \
PicoFreeModel( model ); \
return NULL; \
}
/* allocate a new pico parser */
p = _pico_new_parser( (const picoByte_t *)buffer,bufSize );
if ( p == NULL ) {
return NULL;
}
/* create a new pico model */
model = PicoNewModel();
if ( model == NULL ) {
_pico_free_parser( p );
return NULL;
}
/* do model setup */
PicoSetModelFrameNum( model,frameNum );
PicoSetModelName( model,fileName );
PicoSetModelFileName( model,fileName );
/* try loading the materials */
_obj_mtl_load( model );
/* parse obj line by line */
while ( 1 )
{
/* get first token on line */
if ( _pico_parse_first( p ) == NULL ) {
break;
}
/* skip empty lines */
if ( p->token == NULL || !strlen( p->token ) ) {
continue;
}
/* skip comment lines */
if ( p->token[0] == '#' ) {
_pico_parse_skip_rest( p );
continue;
}
/* vertex */
if ( !_pico_stricmp( p->token,"v" ) ) {
TObjVertexData *data;
picoVec3_t v;
vertexData = SizeObjVertexData( vertexData,numVerts + 1,&entries,&allocated );
if ( vertexData == NULL ) {
_obj_error_return( "Realloc of vertex data failed (1)" );
}
data = &vertexData[ numVerts++ ];
/* get and copy vertex */
if ( !_pico_parse_vec( p,v ) ) {
_obj_error_return( "Vertex parse error" );
}
_pico_copy_vec( v,data->v );
#ifdef DEBUG_PM_OBJ_EX
printf( "Vertex: x: %f y: %f z: %f\n",v[0],v[1],v[2] );
#endif
}
/* uv coord */
else if ( !_pico_stricmp( p->token,"vt" ) ) {
TObjVertexData *data;
picoVec2_t coord;
vertexData = SizeObjVertexData( vertexData,numUVs + 1,&entries,&allocated );
if ( vertexData == NULL ) {
_obj_error_return( "Realloc of vertex data failed (2)" );
}
data = &vertexData[ numUVs++ ];
/* get and copy tex coord */
if ( !_pico_parse_vec2( p,coord ) ) {
_obj_error_return( "UV coord parse error" );
}
_pico_copy_vec2( coord,data->vt );
#ifdef DEBUG_PM_OBJ_EX
printf( "TexCoord: u: %f v: %f\n",coord[0],coord[1] );
#endif
}
/* vertex normal */
else if ( !_pico_stricmp( p->token,"vn" ) ) {
TObjVertexData *data;
picoVec3_t n;
vertexData = SizeObjVertexData( vertexData,numNormals + 1,&entries,&allocated );
if ( vertexData == NULL ) {
_obj_error_return( "Realloc of vertex data failed (3)" );
}
data = &vertexData[ numNormals++ ];
/* get and copy vertex normal */
if ( !_pico_parse_vec( p,n ) ) {
_obj_error_return( "Vertex normal parse error" );
}
_pico_copy_vec( n,data->vn );
#ifdef DEBUG_PM_OBJ_EX
printf( "Normal: x: %f y: %f z: %f\n",n[0],n[1],n[2] );
#endif
}
/* new group (for us this means a new surface) */
else if ( !_pico_stricmp( p->token,"g" ) ) {
char *groupName;
/* get first group name (ignore 2nd,3rd,etc.) */
groupName = _pico_parse( p,0 );
if ( groupName == NULL || !strlen( groupName ) ) {
/* some obj exporters feel like they don't need to */
/* supply a group name. so we gotta handle it here */
#if 1
strcpy( p->token,"default" );
groupName = p->token;
#else
_obj_error_return( "Invalid or missing group name" );
#endif
}
if ( curFace == 0 && curSurface != NULL ) {
PicoSetSurfaceName( curSurface,groupName );
}
else
{
NEW_SURFACE( groupName );
}
#ifdef DEBUG_PM_OBJ_EX
printf( "Group: '%s'\n",groupName );
#endif
}
/* face (oh jesus, hopefully this will do the job right ;) */
else if ( !_pico_stricmp( p->token,"f" ) ) {
/* okay, this is a mess. some 3d apps seem to try being unique, */
/* hello cinema4d & 3d exploration, feel good today?, and save */
/* this crap in tons of different formats. gah, those screwed */
/* coders. tho the wavefront obj standard defines exactly two */
/* ways of storing face information. so, i really won't support */
/* such stupid extravaganza here! */
const int numPointsMax = 128;
picoVec3_t verts [ numPointsMax ];
picoVec3_t normals[ numPointsMax ];
picoVec2_t coords [ numPointsMax ];
int iv [ numPointsMax ], has_v;
int ivt[ numPointsMax ], has_vt = 0;
int ivn[ numPointsMax ], has_vn = 0;
int slashcount = 0;
int doubleslash = 0;
int i;
if ( curSurface == NULL ) {
_pico_printf( PICO_WARNING,"No group defined for faces, so creating an autoSurface in OBJ, line %d.",p->curLine );
AUTO_GROUPNAME( autoGroupNameBuf );
NEW_SURFACE( autoGroupNameBuf );
}
/* group defs *must* come before faces */
if ( curSurface == NULL ) {
_obj_error_return( "No group defined for faces" );
}
#ifdef DEBUG_PM_OBJ_EX
printf( "Face: " );
#endif
/* read vertex/uv/normal indices for the first three face */
/* vertices (cause we only support triangles) into 'i*[]' */
/* store the actual vertex/uv/normal data in three arrays */
/* called 'verts','coords' and 'normals'. */
for ( i = 0; i < numPointsMax; i++ )
{
char *str;
/* get next vertex index string (different */
/* formats are handled below) */
str = _pico_parse( p,0 );
if ( str == NULL ) {
/* got nuff points */
if ( i >= 3 ) {
break;
}
/* error otherwise */
_obj_error_return( "Face parse error" );
}
/* get slash count once */
if ( i == 0 ) {
slashcount = _pico_strchcount( str,'/' );
doubleslash = strstr( str,"//" ) != NULL;
}
/* handle format 'v//vn' */
if ( doubleslash && ( slashcount == 2 ) ) {
has_v = has_vn = 1;
sscanf( str,"%d//%d",&iv[ i ],&ivn[ i ] );
}
/* handle format 'v/vt/vn' */
else if ( !doubleslash && ( slashcount == 2 ) ) {
has_v = has_vt = has_vn = 1;
sscanf( str,"%d/%d/%d",&iv[ i ],&ivt[ i ],&ivn[ i ] );
}
/* handle format 'v/vt' (non-standard fuckage) */
else if ( !doubleslash && ( slashcount == 1 ) ) {
has_v = has_vt = 1;
sscanf( str,"%d/%d",&iv[ i ],&ivt[ i ] );
}
/* else assume face format 'v' */
/* (must have been invented by some bored granny) */
else {
/* get single vertex index */
has_v = 1;
iv[ i ] = atoi( str );
/* either invalid face format or out of range */
if ( iv[ i ] == 0 ) {
_obj_error_return( "Invalid face format" );
}
}
/* fix useless back references */
/* assign new indices */
if ( iv [ i ] < 0 ) {
iv [ i ] = ( numVerts + iv [ i ] + 1 );
}
if ( ivt[ i ] < 0 ) {
ivt[ i ] = ( numUVs + ivt[ i ] + 1 );
}
if ( ivn[ i ] < 0 ) {
ivn[ i ] = ( numNormals + ivn[ i ] + 1 );
}
/* validate indices */
/* - commented out. index range checks will trigger
if (iv [ i ] < 1) iv [ i ] = 1;
if (ivt[ i ] < 1) ivt[ i ] = 1;
if (ivn[ i ] < 1) ivn[ i ] = 1;
*/
/* set vertex origin */
if ( has_v ) {
/* check vertex index range */
if ( iv[ i ] < 1 || iv[ i ] > numVerts ) {
_obj_error_return( "Vertex index out of range" );
}
/* get vertex data */
verts[ i ][ 0 ] = vertexData[ iv[ i ] - 1 ].v[ 0 ];
verts[ i ][ 1 ] = -vertexData[ iv[ i ] - 1 ].v[ 2 ];
verts[ i ][ 2 ] = vertexData[ iv[ i ] - 1 ].v[ 1 ];
}
/* set vertex normal */
if ( has_vn ) {
/* check normal index range */
if ( ivn[ i ] < 1 || ivn[ i ] > numNormals ) {
_obj_error_return( "Normal index out of range" );
}
/* get normal data */
normals[ i ][ 0 ] = vertexData[ ivn[ i ] - 1 ].vn[ 0 ];
normals[ i ][ 1 ] = -vertexData[ ivn[ i ] - 1 ].vn[ 2 ];
normals[ i ][ 2 ] = vertexData[ ivn[ i ] - 1 ].vn[ 1 ];
}
/* set texture coordinate */
if ( has_vt ) {
/* check uv index range */
if ( ivt[ i ] < 1 || ivt[ i ] > numUVs ) {
_obj_error_return( "UV coord index out of range" );
}
/* get uv coord data */
coords[ i ][ 0 ] = vertexData[ ivt[ i ] - 1 ].vt[ 0 ];
coords[ i ][ 1 ] = -vertexData[ ivt[ i ] - 1 ].vt[ 1 ];
}
#ifdef DEBUG_PM_OBJ_EX
printf( "(%4d",iv[ i ] );
if ( has_vt ) {
printf( " %4d",ivt[ i ] );
}
if ( has_vn ) {
printf( " %4d",ivn[ i ] );
}
printf( ") " );
#endif
}
#ifdef DEBUG_PM_OBJ_EX
printf( "\n" );
#endif
/* now that we have extracted all the indices and have */
/* read the actual data we need to assign all the crap */
/* to our current pico surface */
if ( has_v ) {
const int numPoints = i;
/* assign all surface information */
for ( i = 0; i < numPoints; i++ )
{
/*if( has_v )*/ PicoSetSurfaceXYZ( curSurface, ( curVertex + i ), verts [ i ] );
/*if( has_vt )*/ PicoSetSurfaceST( curSurface, 0, ( curVertex + i ), coords [ i ] );
/*if( has_vn )*/ PicoSetSurfaceNormal( curSurface, ( curVertex + i ), normals[ i ] );
if( curSurface && curSurface->shader )
PicoSetSurfaceColor( curSurface, 0, ( curVertex + i ), curSurface->shader->diffuseColor );
}
/* add triangles */
for ( i = 1; i < numPoints - 1; ++i )
{
PicoSetSurfaceIndex( curSurface,( curFace * 3 + 2 ),(picoIndex_t)( curVertex + 0 ) );
PicoSetSurfaceIndex( curSurface,( curFace * 3 + 1 ),(picoIndex_t)( curVertex + i ) );
PicoSetSurfaceIndex( curSurface,( curFace * 3 + 0 ),(picoIndex_t)( curVertex + i + 1 ) );
curFace++;
}
/* increase vertex count */
curVertex += numPoints;
}
}
else if ( !_pico_stricmp( p->token,"usemtl" ) ) {
picoShader_t *shader;
char *name;
/* get material name */
name = _pico_parse( p,0 );
if ( curFace != 0 || curSurface == NULL ) {
_pico_printf( PICO_WARNING,"No group defined for usemtl, so creating an autoSurface in OBJ, line %d.",p->curLine );
AUTO_GROUPNAME( autoGroupNameBuf );
NEW_SURFACE( autoGroupNameBuf );
}
/* validate material name */
if ( name == NULL || !strlen( name ) ) {
_pico_printf( PICO_ERROR,"Missing material name in OBJ, line %d.",p->curLine );
}
else
{
shader = PicoFindShader( model, name, 1 );
if ( shader == NULL ) {
_pico_printf( PICO_WARNING, "Undefined material name \"%s\" in OBJ, line %d. Making a default shader.", name, p->curLine );
/* create a new pico shader */
shader = PicoNewShader( model );
if ( shader != NULL ) {
PicoSetShaderName( shader,name );
PicoSetShaderMapName( shader,name );
PicoSetSurfaceShader( curSurface, shader );
}
}
else
{
PicoSetSurfaceShader( curSurface, shader );
}
}
}
/* skip unparsed rest of line and continue */
_pico_parse_skip_rest( p );
}
/* free memory used by temporary vertexdata */
FreeObjVertexData( vertexData );
/* return allocated pico model */
return model;
// return NULL;
}