char *sgetS0( unsigned char **bp )
{
char *s;
unsigned char *buf = *bp;
size_t len;
if ( flen == FLEN_ERROR ) return NULL;
len = strlen( buf ) + 1;
if ( len == 1 ) {
flen += 2;
*bp += 2;
return NULL;
}
len += len & 1;
s = _pico_alloc( len );
if ( !s ) {
flen = FLEN_ERROR;
return NULL;
}
memcpy( s, buf, len );
flen += len;
*bp += len;
return s;
}
/**
* @brief creates a new pico surface
*/
picoSurface_t *PicoNewSurface (picoModel_t *model)
{
/* allocate and clear */
picoSurface_t *surface = _pico_alloc(sizeof(*surface));
if (surface == NULL)
return NULL;
/* attach it to the model */
if (model != NULL) {
char surfaceName[64];
/* adjust model */
if (!PicoAdjustModel(model, 0, model->numSurfaces + 1)) {
_pico_free(surface);
return NULL;
}
/* attach */
model->surface[model->numSurfaces - 1] = surface;
surface->model = model;
/* set default name */
sprintf(surfaceName, "Unnamed_%d", model->numSurfaces);
PicoSetSurfaceName(surface, surfaceName);
}
/* return */
return surface;
}
/**
* @brief creates a new pico shader and returns its index. -sea
*/
picoShader_t *PicoNewShader (picoModel_t *model)
{
picoShader_t *shader;
/* allocate and clear */
shader = _pico_alloc(sizeof(*shader));
if (shader == NULL)
return NULL;
/* attach it to the model */
if (model != NULL) {
/* adjust model */
if (!PicoAdjustModel(model, model->numShaders + 1, 0)) {
_pico_free(shader);
return NULL;
}
/* attach */
model->shader[model->numShaders - 1] = shader;
shader->model = model;
}
/* setup default shader colors */
_pico_set_color(shader->ambientColor, 0, 0, 0, 0);
_pico_set_color(shader->diffuseColor, 255, 255, 255, 1);
_pico_set_color(shader->specularColor, 0, 0, 0, 0);
/* no need to do this, but i do it anyway */
shader->transparency = 0;
shader->shininess = 0;
/* return the newly created shader */
return shader;
}
picoModel_t *PicoModuleLoadModelStream (const picoModule_t* module, const char *fileName, void* inputStream,
PicoInputStreamReadFunc inputStreamRead, size_t streamLength, int frameNum)
{
picoModel_t *model;
picoByte_t *buffer;
int bufSize;
/* init */
model = NULL;
if (inputStream == NULL) {
_pico_printf(PICO_ERROR, "PicoLoadModel: invalid input stream (inputStream == NULL)");
return NULL;
}
if (inputStreamRead == NULL) {
_pico_printf(PICO_ERROR, "PicoLoadModel: invalid input stream (inputStreamRead == NULL)");
return NULL;
}
buffer = _pico_alloc(streamLength + 1);
bufSize = (int) inputStreamRead(inputStream, buffer, streamLength);
buffer[bufSize] = '\0';
model = PicoModuleLoadModel(module, fileName, buffer, bufSize, frameNum);
if (model != 0)
_pico_free(buffer);
/* return */
return model;
}
picoVertexCombinationHash_t *PicoAddVertexCombinationToHashTable (picoVertexCombinationHash_t **hashTable,
picoVec3_t xyz, picoVec3_t normal, picoVec3_t st, picoColor_t color, picoIndex_t index)
{
unsigned int hash;
picoVertexCombinationHash_t *vertexCombinationHash;
/* dumy check */
if (hashTable == NULL || xyz == NULL || normal == NULL || st == NULL || color == NULL)
return NULL;
vertexCombinationHash = _pico_alloc(sizeof(picoVertexCombinationHash_t));
if (!vertexCombinationHash)
return NULL;
hash = PicoVertexCoordGenerateHash(xyz);
_pico_copy_vec(xyz, vertexCombinationHash->vcd.xyz);
_pico_copy_vec(normal, vertexCombinationHash->vcd.normal);
_pico_copy_vec2(st, vertexCombinationHash->vcd.st);
_pico_copy_color(color, vertexCombinationHash->vcd.color);
vertexCombinationHash->index = index;
vertexCombinationHash->data = NULL;
vertexCombinationHash->next = hashTable[hash];
hashTable[hash] = vertexCombinationHash;
return vertexCombinationHash;
}
int lwResolvePolySurfaces( lwPolygonList *polygon, lwTagList *tlist,
lwSurface **surf, int *nsurfs ){
lwSurface **s, *st;
int i, index;
if ( tlist->count == 0 ) {
return 1;
}
s = _pico_calloc( tlist->count, sizeof( lwSurface * ) );
if ( !s ) {
return 0;
}
for ( i = 0; i < tlist->count; i++ ) {
st = *surf;
while ( st ) {
if ( !strcmp( st->name, tlist->tag[ i ] ) ) {
s[ i ] = st;
break;
}
st = st->next;
}
}
for ( i = 0; i < polygon->count; i++ ) {
index = ( int ) ( (size_t)polygon->pol[ i ].surf );
if ( index < 0 || index > tlist->count ) {
return 0;
}
if ( !s[ index ] ) {
s[ index ] = lwDefaultSurface();
if ( !s[ index ] ) {
return 0;
}
s[ index ]->name = _pico_alloc( strlen( tlist->tag[ index ] ) + 1 );
if ( !s[ index ]->name ) {
return 0;
}
strcpy( s[ index ]->name, tlist->tag[ index ] );
lwListAdd( (void **) surf, s[ index ] );
*nsurfs = *nsurfs + 1;
}
polygon->pol[ i ].surf = s[ index ];
}
_pico_free( s );
return 1;
}
char *getS0( picoMemStream_t *fp )
{
char *s;
size_t i, len, pos;
int c;
if ( flen == FLEN_ERROR ) return NULL;
pos = _pico_memstream_tell( fp );
for ( i = 1; ; i++ ) {
c = _pico_memstream_getc( fp );
if ( c <= 0 ) break;
}
if ( c < 0 ) {
flen = FLEN_ERROR;
return NULL;
}
if ( i == 1 ) {
if ( _pico_memstream_seek( fp, pos + 2, PICO_SEEK_SET ))
flen = FLEN_ERROR;
else
flen += 2;
return NULL;
}
len = i + ( i & 1 );
s = _pico_alloc( len );
if ( !s ) {
flen = FLEN_ERROR;
return NULL;
}
if ( _pico_memstream_seek( fp, pos, PICO_SEEK_SET )) {
flen = FLEN_ERROR;
return NULL;
}
if ( 1 != _pico_memstream_read( fp, s, len )) {
flen = FLEN_ERROR;
return NULL;
}
flen += len;
return s;
}
/**
* @brief creates a new pico model
*/
picoModel_t *PicoNewModel (void)
{
picoModel_t *model;
/* allocate */
model = _pico_alloc(sizeof(picoModel_t));
if (model == NULL)
return NULL;
/* model set up */
_pico_zero_bounds(model->mins, model->maxs);
/* set initial frame count to 1 -sea */
model->numFrames = 1;
/* return ptr to new model */
return model;
}
/* _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 *)_pico_alloc( bufSize );
memcpy( pers.bufptr, buffer, bufSize );
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;
}
static int add_tvel( float pos[], float vel[], lwEnvelope **elist, int *nenvs )
{
lwEnvelope *env;
lwKey *key0, *key1;
int i;
for ( i = 0; i < 3; i++ ) {
env = _pico_calloc( 1, sizeof( lwEnvelope ));
key0 = _pico_calloc( 1, sizeof( lwKey ));
key1 = _pico_calloc( 1, sizeof( lwKey ));
if ( !env || !key0 || !key1 ) return 0;
key0->next = key1;
key0->value = pos[ i ];
key0->time = 0.0f;
key1->prev = key0;
key1->value = pos[ i ] + vel[ i ] * 30.0f;
key1->time = 1.0f;
key0->shape = key1->shape = ID_LINE;
env->index = *nenvs + i + 1;
env->type = 0x0301 + i;
env->name = _pico_alloc( 11 );
if ( env->name ) {
strcpy( env->name, "Position.X" );
env->name[ 9 ] += i;
}
env->key = key0;
env->nkeys = 2;
env->behavior[ 0 ] = BEH_LINEAR;
env->behavior[ 1 ] = BEH_LINEAR;
lwListAdd( (void *) elist, env );
}
*nenvs += 3;
return env->index - 2;
}
void *getbytes( picoMemStream_t *fp, size_t size )
{
void *data;
if ( flen == FLEN_ERROR ) return NULL;
if ( size < 0 ) {
flen = FLEN_ERROR;
return NULL;
}
data = _pico_alloc( size );
if ( !data ) {
flen = FLEN_ERROR;
return NULL;
}
if ( 1 != _pico_memstream_read( fp, data, size )) {
flen = FLEN_ERROR;
_pico_free( data );
return NULL;
}
flen += size;
return data;
}
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;
}
/**
* @brief adjusts a surface's memory allocations to handle the requested sizes.
* will always grow, never shrink
*/
int PicoAdjustSurface (picoSurface_t *surface, int numVertexes, int numSTArrays, int numColorArrays, int numIndexes,
int numFaceNormals)
{
int i;
/* dummy check */
if (surface == NULL)
return 0;
/* bare minimums */
if (numVertexes < 1)
numVertexes = 1;
if (numSTArrays < 1)
numSTArrays = 1;
if (numColorArrays < 1)
numColorArrays = 1;
if (numIndexes < 1)
numIndexes = 1;
/* additional vertexes? */
while (numVertexes > surface->maxVertexes) { /* fix */
surface->maxVertexes += PICO_GROW_VERTEXES;
if (!_pico_realloc((void *) &surface->xyz, surface->numVertexes * sizeof(*surface->xyz), surface->maxVertexes
* sizeof(*surface->xyz)))
return 0;
if (!_pico_realloc((void *) &surface->normal, surface->numVertexes * sizeof(*surface->normal),
surface->maxVertexes * sizeof(*surface->normal)))
return 0;
if (!_pico_realloc((void *) &surface->smoothingGroup, surface->numVertexes * sizeof(*surface->smoothingGroup),
surface->maxVertexes * sizeof(*surface->smoothingGroup)))
return 0;
for (i = 0; i < surface->numSTArrays; i++)
if (!_pico_realloc((void*) &surface->st[i], surface->numVertexes * sizeof(*surface->st[i]),
surface->maxVertexes * sizeof(*surface->st[i])))
return 0;
for (i = 0; i < surface->numColorArrays; i++)
if (!_pico_realloc((void*) &surface->color[i], surface->numVertexes * sizeof(*surface->color[i]),
surface->maxVertexes * sizeof(*surface->color[i])))
return 0;
}
/* set vertex count to higher */
if (numVertexes > surface->numVertexes)
surface->numVertexes = numVertexes;
/* additional st arrays? */
while (numSTArrays > surface->maxSTArrays) { /* fix */
surface->maxSTArrays += PICO_GROW_ARRAYS;
if (!_pico_realloc((void*) &surface->st, surface->numSTArrays * sizeof(*surface->st), surface->maxSTArrays
* sizeof(*surface->st)))
return 0;
while (surface->numSTArrays < numSTArrays) {
surface->st[surface->numSTArrays] = _pico_alloc(surface->maxVertexes * sizeof(*surface->st[0]));
memset(surface->st[surface->numSTArrays], 0, surface->maxVertexes * sizeof(*surface->st[0]));
surface->numSTArrays++;
}
}
/* additional color arrays? */
while (numColorArrays > surface->maxColorArrays) { /* fix */
surface->maxColorArrays += PICO_GROW_ARRAYS;
if (!_pico_realloc((void*) &surface->color, surface->numColorArrays * sizeof(*surface->color),
surface->maxColorArrays * sizeof(*surface->color)))
return 0;
while (surface->numColorArrays < numColorArrays) {
surface->color[surface->numColorArrays] = _pico_alloc(surface->maxVertexes * sizeof(*surface->color[0]));
memset(surface->color[surface->numColorArrays], 0, surface->maxVertexes * sizeof(*surface->color[0]));
surface->numColorArrays++;
}
}
/* additional indexes? */
while (numIndexes > surface->maxIndexes) { /* fix */
surface->maxIndexes += PICO_GROW_INDEXES;
if (!_pico_realloc((void*) &surface->index, surface->numIndexes * sizeof(*surface->index), surface->maxIndexes
* sizeof(*surface->index)))
return 0;
}
/* set index count to higher */
if (numIndexes > surface->numIndexes)
surface->numIndexes = numIndexes;
/* additional face normals? */
while (numFaceNormals > surface->maxFaceNormals) { /* fix */
surface->maxFaceNormals += PICO_GROW_FACES;
if (!_pico_realloc((void *) &surface->faceNormal, surface->numFaceNormals * sizeof(*surface->faceNormal),
surface->maxFaceNormals * sizeof(*surface->faceNormal)))
return 0;
}
/* set face normal count to higher */
if (numFaceNormals > surface->numFaceNormals)
surface->numFaceNormals = numFaceNormals;
/* return ok */
return 1;
}
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;
}
/**
* @brief This pretty piece of 'alloc ahead' code dynamically
* allocates - and reallocates as soon as required -
* my vertex data array in even steps.
*/
static TObjVertexData *SizeObjVertexData (TObjVertexData *vertexData, int reqEntries, int *entries, int *allocated)
{
int newAllocated;
/* sanity checks */
if (reqEntries < 1)
return NULL;
if (entries == NULL || allocated == NULL)
return NULL; /* must have */
/* no need to grow yet */
if (vertexData && (reqEntries < *allocated)) {
*entries = reqEntries;
return vertexData;
}
/* given vertex data ptr not allocated yet */
if (vertexData == NULL) {
/* how many entries to allocate */
newAllocated = (reqEntries > SIZE_OBJ_STEP) ? reqEntries : SIZE_OBJ_STEP;
/* throw out an extended debug message */
#ifdef DEBUG_PM_OBJ_EX
printf("SizeObjVertexData: allocate (%d entries)\n",
newAllocated);
#endif
/* first time allocation */
vertexData = (TObjVertexData *) _pico_alloc(sizeof(TObjVertexData) * newAllocated);
/* allocation failed */
if (vertexData == NULL)
return NULL;
/* allocation succeeded */
*allocated = newAllocated;
*entries = reqEntries;
return vertexData;
}
/* given vertex data ptr needs to be resized */
if (reqEntries == *allocated) {
newAllocated = (*allocated + SIZE_OBJ_STEP);
/* throw out an extended debug message */
#ifdef DEBUG_PM_OBJ_EX
printf("SizeObjVertexData: reallocate (%d entries)\n",
newAllocated);
#endif
/* try to reallocate */
vertexData = (TObjVertexData *) _pico_realloc((void *) &vertexData, sizeof(TObjVertexData) * (*allocated),
sizeof(TObjVertexData) * (newAllocated));
/* reallocation failed */
if (vertexData == NULL)
return NULL;
/* reallocation succeeded */
*allocated = newAllocated;
*entries = reqEntries;
return vertexData;
}
/* we're b0rked when we reach this */
return NULL;
}
/* _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_canload()
static int _fm_canload( PM_PARAMS_CANLOAD )
{
fm_t fm;
unsigned char *bb, *bb0;
int fm_file_pos;
bb0 = bb = (picoByte_t*) _pico_alloc(bufSize);
memcpy(bb, buffer, bufSize);
// Header
fm.fm_header_hdr = (fm_chunk_header_t *) bb;
fm_file_pos = sizeof(fm_chunk_header_t) + fm.fm_header_hdr->size;
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_VERBOSE, "IDENT: %s\n", (unsigned char *) fm.fm_header_hdr->ident );
#endif
if( (strcmp(fm.fm_header_hdr->ident, FM_HEADERCHUNKNAME)) )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Header Ident incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_IDENT;
}
// check fm
if( _pico_little_long( fm.fm_header_hdr->version ) != FM_HEADERCHUNKVER )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Header Version incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_VERSION;
}
// Skin
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;
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_VERBOSE, "SKIN: %s\n", (unsigned char *) fm.fm_skin_hdr->ident );
#endif
if( (strcmp(fm.fm_skin_hdr->ident, FM_SKINCHUNKNAME)) )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Skin Ident incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_IDENT;
}
// check fm
if( _pico_little_long( fm.fm_skin_hdr->version ) != FM_SKINCHUNKVER )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Skin Version incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_VERSION;
}
// st
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;
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_VERBOSE, "ST: %s\n", (unsigned char *) fm.fm_st_hdr->ident );
#endif
if( (strcmp(fm.fm_st_hdr->ident, FM_STCOORDCHUNKNAME)) )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM ST Ident incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_IDENT;
}
// check fm
if( _pico_little_long( fm.fm_st_hdr->version ) != FM_STCOORDCHUNKVER )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM ST Version incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_VERSION;
}
// tri
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;
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_VERBOSE, "TRI: %s\n", (unsigned char *) fm.fm_tri_hdr->ident );
#endif
if( (strcmp(fm.fm_tri_hdr->ident, FM_TRISCHUNKNAME)) )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Tri Ident incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_IDENT;
}
// check fm
if( _pico_little_long( fm.fm_tri_hdr->version ) != FM_TRISCHUNKVER )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Tri Version incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_VERSION;
}
// frame
fm.fm_frame_hdr = (fm_chunk_header_t *) (bb + fm_file_pos);
fm_file_pos += sizeof(fm_chunk_header_t);
#ifdef FM_VERBOSE_DBG
_pico_printf( PICO_VERBOSE, "FRAME: %s\n", (unsigned char *) fm.fm_frame_hdr->ident );
#endif
if( (strcmp(fm.fm_frame_hdr->ident, FM_FRAMESCHUNKNAME)) )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Frame Ident incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_IDENT;
}
// check fm
if( _pico_little_long( fm.fm_frame_hdr->version ) != FM_FRAMESCHUNKVER )
{
#ifdef FM_DBG
_pico_printf( PICO_WARNING, "FM Frame Version incorrect\n");
#endif
_pico_free(bb0);
return PICO_PMV_ERROR_VERSION;
}
// file seems to be a valid fm
return PICO_PMV_OK;
}
// _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;
}
void _terrain_load_tga_buffer( unsigned char *buffer, unsigned char **pic, int *width, int *height ){
int row, column;
int columns, rows, numPixels;
unsigned char *pixbuf;
unsigned char *buf_p;
tga_t targa_header;
unsigned char *targa_rgba;
*pic = NULL;
if ( buffer == NULL ) {
return;
}
buf_p = buffer;
targa_header.id_length = *buf_p++;
targa_header.colormap_type = *buf_p++;
targa_header.image_type = *buf_p++;
targa_header.colormap_index = _pico_little_short( *(short*)buf_p );
buf_p += 2;
targa_header.colormap_length = _pico_little_short( *(short*) buf_p );
buf_p += 2;
targa_header.colormap_size = *buf_p++;
targa_header.x_origin = _pico_little_short( *(short*) buf_p );
buf_p += 2;
targa_header.y_origin = _pico_little_short( *(short*) buf_p );
buf_p += 2;
targa_header.width = _pico_little_short( *(short*) buf_p );
buf_p += 2;
targa_header.height = _pico_little_short( *(short*) buf_p );
buf_p += 2;
targa_header.pixel_size = *buf_p++;
targa_header.attributes = *buf_p++;
if ( targa_header.image_type != 2 && targa_header.image_type != 10 && targa_header.image_type != 3 ) {
_pico_printf( PICO_ERROR, "Only type 2 (RGB), 3 (gray), and 10 (RGB) TGA images supported\n" );
pic = NULL;
return;
}
if ( targa_header.colormap_type != 0 ) {
_pico_printf( PICO_ERROR, "Indexed color TGA images not supported\n" );
return;
}
if ( targa_header.pixel_size != 32 && targa_header.pixel_size != 24 && targa_header.image_type != 3 ) {
_pico_printf( PICO_ERROR, "Only 32 or 24 bit TGA images supported (not indexed color)\n" );
pic = NULL;
return;
}
columns = targa_header.width;
rows = targa_header.height;
numPixels = columns * rows;
if ( width ) {
*width = columns;
}
if ( height ) {
*height = rows;
}
targa_rgba = _pico_alloc( numPixels * 4 );
*pic = targa_rgba;
if ( targa_header.id_length != 0 ) {
buf_p += targa_header.id_length; // skip TARGA image comment
}
if ( targa_header.image_type == 2 || targa_header.image_type == 3 ) {
// Uncompressed RGB or gray scale image
for ( row = rows - 1; row >= 0; row-- )
{
pixbuf = targa_rgba + row * columns * 4;
for ( column = 0; column < columns; column++ )
{
unsigned char red,green,blue,alphabyte;
switch ( targa_header.pixel_size )
{
case 8:
blue = *buf_p++;
green = blue;
red = blue;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = 255;
break;
case 24:
blue = *buf_p++;
green = *buf_p++;
red = *buf_p++;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = 255;
break;
case 32:
blue = *buf_p++;
green = *buf_p++;
red = *buf_p++;
alphabyte = *buf_p++;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
break;
default:
break;
}
}
}
}
/* rle encoded pixels */
else if ( targa_header.image_type == 10 ) {
unsigned char red,green,blue,alphabyte,packetHeader,packetSize,j;
red = 0;
green = 0;
blue = 0;
alphabyte = 0xff;
for ( row = rows - 1; row >= 0; row-- ) {
pixbuf = targa_rgba + row * columns * 4;
for ( column = 0; column < columns; ) {
packetHeader = *buf_p++;
packetSize = 1 + ( packetHeader & 0x7f );
if ( packetHeader & 0x80 ) { // run-length packet
switch ( targa_header.pixel_size ) {
case 24:
blue = *buf_p++;
green = *buf_p++;
red = *buf_p++;
alphabyte = 255;
break;
case 32:
blue = *buf_p++;
green = *buf_p++;
red = *buf_p++;
alphabyte = *buf_p++;
break;
default:
//Error("LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
break;
}
for ( j = 0; j < packetSize; j++ ) {
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
column++;
if ( column == columns ) { // run spans across rows
column = 0;
if ( row > 0 ) {
row--;
}
else{
goto breakOut;
}
pixbuf = targa_rgba + row * columns * 4;
}
}
}
else { // non run-length packet
for ( j = 0; j < packetSize; j++ ) {
switch ( targa_header.pixel_size ) {
case 24:
blue = *buf_p++;
green = *buf_p++;
red = *buf_p++;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = 255;
break;
case 32:
blue = *buf_p++;
green = *buf_p++;
red = *buf_p++;
alphabyte = *buf_p++;
*pixbuf++ = red;
*pixbuf++ = green;
*pixbuf++ = blue;
*pixbuf++ = alphabyte;
break;
default:
//Sysprintf("LoadTGA: illegal pixel_size '%d' in file '%s'\n", targa_header.pixel_size, name );
break;
}
column++;
if ( column == columns ) { // pixel packet run spans across rows
column = 0;
if ( row > 0 ) {
row--;
}
else{
goto breakOut;
}
pixbuf = targa_rgba + row * columns * 4;
}
}
}
}
breakOut:;
}
}
/* fix vertically flipped image */
if ( ( targa_header.attributes & ( 1 << 5 ) ) ) {
int flip;
for ( row = 0; row < .5f * rows; row++ )
{
for ( column = 0; column < columns; column++ )
{
flip = *( (int*)targa_rgba + row * columns + column );
*( (int*)targa_rgba + row * columns + column ) = *( (int*)targa_rgba + ( ( rows - 1 ) - row ) * columns + column );
*( (int*)targa_rgba + ( ( rows - 1 ) - row ) * columns + column ) = flip;
}
}
}
}
