/*!
* \ingroup tracks
*/
Lib3dsBool
lib3ds_morph_track_read(Lib3dsMorphTrack *track, Lib3dsIo *io)
{
/* This function was written by Stephane Denis on 5-18-04 */
int i;
Lib3dsMorphKey *k = 0;
Lib3dsMorphKey *pk = 0;
int keys;
track->flags=lib3ds_io_read_word(io);
lib3ds_io_read_dword(io);
lib3ds_io_read_dword(io);
keys=lib3ds_io_read_intd(io);
for (i=0; i<keys; ++i) {
k=lib3ds_morph_key_new();
if (!lib3ds_tcb_read(&k->tcb, io)) {
return(LIB3DS_FALSE);
}
if (!lib3ds_io_read_string(io, k->name, 11)) {
return(LIB3DS_FALSE);
}
if (!track->keyL)
track->keyL = k;
else
pk->next = k;
pk = k;
}
return(LIB3DS_TRUE);
}
/*!
* \ingroup tracks
*/
Lib3dsBool
lib3ds_lin3_track_read(Lib3dsLin3Track *track, Lib3dsIo *io)
{
int keys;
int i,j;
Lib3dsLin3Key *k;
track->flags=lib3ds_io_read_word(io);
lib3ds_io_read_dword(io);
lib3ds_io_read_dword(io);
keys=lib3ds_io_read_intd(io);
for (i=0; i<keys; ++i) {
k=lib3ds_lin3_key_new();
if (!lib3ds_tcb_read(&k->tcb, io)) {
return(LIB3DS_FALSE);
}
for (j=0; j<3; ++j) {
k->value[j]=lib3ds_io_read_float(io);
}
lib3ds_lin3_track_insert(track, k);
}
lib3ds_lin3_track_setup(track);
return(LIB3DS_TRUE);
}
/*!
* \ingroup tracks
*/
Lib3dsBool
lib3ds_quat_track_read(Lib3dsQuatTrack *track, Lib3dsIo *io)
{
int keys;
int i,j;
Lib3dsQuatKey *p,*k;
track->flags=lib3ds_io_read_word(io);
lib3ds_io_read_dword(io);
lib3ds_io_read_dword(io);
keys=lib3ds_io_read_intd(io);
for (p=0,i=0; i<keys; p=k,++i) {
k=lib3ds_quat_key_new();
if (!lib3ds_tcb_read(&k->tcb, io)) {
return(LIB3DS_FALSE);
}
k->angle=lib3ds_io_read_float(io);
for (j=0; j<3; ++j) {
k->axis[j]=lib3ds_io_read_float(io);
}
lib3ds_quat_track_insert(track, k);
}
lib3ds_quat_track_setup(track);
return(LIB3DS_TRUE);
}
void
lib3ds_track_read(Lib3dsTrack *track, Lib3dsIo *io) {
unsigned nkeys;
unsigned i;
track->flags = lib3ds_io_read_word(io);
lib3ds_io_read_dword(io);
lib3ds_io_read_dword(io);
nkeys = lib3ds_io_read_intd(io);
lib3ds_track_resize(track, nkeys);
switch (track->type) {
case LIB3DS_TRACK_BOOL:
for (i = 0; i < nkeys; ++i) {
track->keys[i].frame = lib3ds_io_read_intd(io);
tcb_read(&track->keys[i], io);
}
break;
case LIB3DS_TRACK_FLOAT:
for (i = 0; i < nkeys; ++i) {
track->keys[i].frame = lib3ds_io_read_intd(io);
tcb_read(&track->keys[i], io);
track->keys[i].value[0] = lib3ds_io_read_float(io);
}
break;
case LIB3DS_TRACK_VECTOR:
for (i = 0; i < nkeys; ++i) {
track->keys[i].frame = lib3ds_io_read_intd(io);
tcb_read(&track->keys[i], io);
lib3ds_io_read_vector(io, track->keys[i].value);
}
break;
case LIB3DS_TRACK_QUAT:
for (i = 0; i < nkeys; ++i) {
track->keys[i].frame = lib3ds_io_read_intd(io);
tcb_read(&track->keys[i], io);
track->keys[i].value[3] = lib3ds_io_read_float(io);
lib3ds_io_read_vector(io, track->keys[i].value);
}
break;
/*case LIB3DS_TRACK_MORPH:
for (i = 0; i < nkeys; ++i) {
track->keys[i].frame = lib3ds_io_read_intd(io);
tcb_read(&track->keys[i].tcb, io);
lib3ds_io_read_string(io, track->keys[i].data.m.name, 64);
}
break;*/
default:
break;
}
}
static Lib3dsBool
layer_fog_read(Lib3dsLayerFog *fog, Lib3dsIo *io)
{
Lib3dsChunk c;
Lib3dsWord chunk;
Lib3dsBool have_lin=LIB3DS_FALSE;
if (!lib3ds_chunk_read_start(&c, LIB3DS_LAYER_FOG, io)) {
return(LIB3DS_FALSE);
}
fog->near_y=lib3ds_io_read_float(io);
fog->far_y=lib3ds_io_read_float(io);
fog->density=lib3ds_io_read_float(io);
fog->flags=lib3ds_io_read_dword(io);
lib3ds_chunk_read_tell(&c, io);
while ((chunk=lib3ds_chunk_read_next(&c, io))!=0) {
switch (chunk) {
case LIB3DS_LIN_COLOR_F:
lib3ds_io_read_rgb(io, fog->col);
have_lin=LIB3DS_TRUE;
break;
case LIB3DS_COLOR_F:
lib3ds_io_read_rgb(io, fog->col);
break;
default:
lib3ds_chunk_unknown(chunk);
}
}
lib3ds_chunk_read_end(&c, io);
return(LIB3DS_TRUE);
}
static void
layer_fog_read(Lib3dsAtmosphere *at, Lib3dsIo *io)
{
Lib3dsChunk c;
uint16_t chunk;
int have_lin = FALSE;
lib3ds_chunk_read_start(&c, CHK_LAYER_FOG, io);
at->layer_fog_near_y = lib3ds_io_read_float(io);
at->layer_fog_far_y = lib3ds_io_read_float(io);
at->layer_fog_density = lib3ds_io_read_float(io);
at->layer_fog_flags = lib3ds_io_read_dword(io);
lib3ds_chunk_read_tell(&c, io);
while ((chunk = lib3ds_chunk_read_next(&c, io)) != 0)
{
switch (chunk)
{
case CHK_LIN_COLOR_F:
lib3ds_io_read_rgb(io, at->layer_fog_color);
have_lin = TRUE;
break;
case CHK_COLOR_F:
lib3ds_io_read_rgb(io, at->layer_fog_color);
break;
default:
lib3ds_chunk_unknown(chunk, io);
}
}
lib3ds_chunk_read_end(&c, io);
}
/*!
* Read 3ds file data into a Lib3dsFile object.
*
* \param file The Lib3dsFile object to be filled.
* \param io A Lib3dsIo object previously set up by the caller.
*
* \return LIB3DS_TRUE on success, LIB3DS_FALSE on failure.
*
* \ingroup file
*/
Lib3dsBool
lib3ds_file_read(Lib3dsFile *file, Lib3dsIo *io)
{
Lib3dsChunk c;
Lib3dsWord chunk;
if (!lib3ds_chunk_read_start(&c, 0, io)) {
return(LIB3DS_FALSE);
}
switch (c.chunk) {
case LIB3DS_MDATA:
{
lib3ds_chunk_read_reset(&c, io);
if (!mdata_read(file, io)) {
return(LIB3DS_FALSE);
}
}
break;
case LIB3DS_M3DMAGIC:
case LIB3DS_MLIBMAGIC:
case LIB3DS_CMAGIC:
{
while ((chunk=lib3ds_chunk_read_next(&c, io))!=0) {
switch (chunk) {
case LIB3DS_M3D_VERSION:
{
file->mesh_version=lib3ds_io_read_dword(io);
}
break;
case LIB3DS_MDATA:
{
lib3ds_chunk_read_reset(&c, io);
if (!mdata_read(file, io)) {
return(LIB3DS_FALSE);
}
}
break;
case LIB3DS_KFDATA:
{
lib3ds_chunk_read_reset(&c, io);
if (!kfdata_read(file, io)) {
return(LIB3DS_FALSE);
}
}
break;
default:
lib3ds_chunk_unknown(chunk);
}
}
}
break;
default:
lib3ds_chunk_unknown(c.chunk);
return(LIB3DS_FALSE);
}
lib3ds_chunk_read_end(&c, io);
return(LIB3DS_TRUE);
}
/*!
* \ingroup tracks
*/
Lib3dsBool
lib3ds_bool_track_read(Lib3dsBoolTrack *track, Lib3dsIo *io)
{
int keys;
int i;
Lib3dsBoolKey *k;
track->flags=lib3ds_io_read_word(io);
lib3ds_io_read_dword(io);
lib3ds_io_read_dword(io);
keys=lib3ds_io_read_intd(io);
for (i=0; i<keys; ++i) {
k=lib3ds_bool_key_new();
if (!lib3ds_tcb_read(&k->tcb, io)) {
return(LIB3DS_FALSE);
}
lib3ds_bool_track_insert(track, k);
}
return(LIB3DS_TRUE);
}
/*!
* Reads a 3d-Studio chunk header from a little endian file stream.
*
* \param c The chunk to store the data.
* \param io The file stream.
*
* \return True on success, False otherwise.
*/
void
lib3ds_chunk_read(Lib3dsChunk *c, Lib3dsIo *io) {
assert(c);
assert(io);
c->cur = lib3ds_io_tell(io);
c->chunk = lib3ds_io_read_word(io);
c->size = lib3ds_io_read_dword(io);
c->end = c->cur + c->size;
c->cur += 6;
if (c->size < 6) {
lib3ds_io_log(io, LIB3DS_LOG_ERROR, "Invalid chunk header.");
}
}
/*!
* \ingroup chunk
*
* Reads a 3d-Studio chunk header from a little endian file stream.
*
* \param c The chunk to store the data.
* \param io The file stream.
*
* \return True on success, False otherwise.
*/
Lib3dsBool
lib3ds_chunk_read(Lib3dsChunk *c, Lib3dsIo *io)
{
ASSERT(c);
ASSERT(io);
c->cur=lib3ds_io_tell(io);
c->chunk=lib3ds_io_read_word(io);
c->size=lib3ds_io_read_dword(io);
c->end=c->cur+c->size;
c->cur+=6;
if (lib3ds_io_error(io) || (c->size<6)) {
return(LIB3DS_FALSE);
}
return(LIB3DS_TRUE);
}
/*!
* \ingroup chunk
*/
Lib3dsWord
lib3ds_chunk_read_next(Lib3dsChunk *c, Lib3dsIo *io)
{
Lib3dsChunk d;
if (c->cur>=c->end) {
ASSERT(c->cur==c->end);
return(0);
}
lib3ds_io_seek(io, (long)c->cur, LIB3DS_SEEK_SET);
d.chunk=lib3ds_io_read_word(io);
d.size=lib3ds_io_read_dword(io);
lib3ds_chunk_debug_dump(&d);
c->cur+=d.size;
return(d.chunk);
}
uint16_t
lib3ds_chunk_read_next(Lib3dsChunk *c, Lib3dsIo *io) {
Lib3dsChunk d;
if (c->cur >= c->end) {
assert(c->cur == c->end);
return 0;
}
lib3ds_io_seek(io, (long)c->cur, LIB3DS_SEEK_SET);
d.chunk = lib3ds_io_read_word(io);
d.size = lib3ds_io_read_dword(io);
c->cur += d.size;
if (io->log_func) {
lib3ds_io_log(io, LIB3DS_LOG_INFO, "%s (0x%X) size=%lu", lib3ds_chunk_name(d.chunk), d.chunk, d.size);
}
return d.chunk;
}
static void
face_array_read(Lib3dsFile *file, Lib3dsMesh *mesh, Lib3dsIo *io) {
Lib3dsChunk c;
uint16_t chunk;
int i;
uint16_t nfaces;
lib3ds_chunk_read_start(&c, CHK_FACE_ARRAY, io);
lib3ds_mesh_resize_faces(mesh, 0);
nfaces = lib3ds_io_read_word(io);
if (nfaces) {
lib3ds_mesh_resize_faces(mesh, nfaces);
for (i = 0; i < nfaces; ++i) {
mesh->faces[i].index[0] = lib3ds_io_read_word(io);
mesh->faces[i].index[1] = lib3ds_io_read_word(io);
mesh->faces[i].index[2] = lib3ds_io_read_word(io);
mesh->faces[i].flags = lib3ds_io_read_word(io);
}
lib3ds_chunk_read_tell(&c, io);
while ((chunk = lib3ds_chunk_read_next(&c, io)) != 0) {
switch (chunk) {
case CHK_MSH_MAT_GROUP: {
char name[64];
unsigned n;
unsigned i;
int index;
int material;
lib3ds_io_read_string(io, name, 64);
material = lib3ds_file_material_by_name(file, name);
n = lib3ds_io_read_word(io);
for (i = 0; i < n; ++i) {
index = lib3ds_io_read_word(io);
if (index < mesh->nfaces) {
mesh->faces[index].material = material;
} else {
// TODO warning
}
}
break;
}
case CHK_SMOOTH_GROUP: {
int i;
for (i = 0; i < mesh->nfaces; ++i) {
mesh->faces[i].smoothing_group = lib3ds_io_read_dword(io);
}
break;
}
case CHK_MSH_BOXMAP: {
lib3ds_io_read_string(io, mesh->box_front, 64);
lib3ds_io_read_string(io, mesh->box_back, 64);
lib3ds_io_read_string(io, mesh->box_left, 64);
lib3ds_io_read_string(io, mesh->box_right, 64);
lib3ds_io_read_string(io, mesh->box_top, 64);
lib3ds_io_read_string(io, mesh->box_bottom, 64);
break;
}
default:
lib3ds_chunk_unknown(chunk,io);
}
}
}
lib3ds_chunk_read_end(&c, io);
}
static Lib3dsBool
face_array_read(Lib3dsMesh *mesh, Lib3dsIo *io)
{
Lib3dsChunk c;
Lib3dsWord chunk;
int i;
int faces;
if (!lib3ds_chunk_read_start(&c, LIB3DS_FACE_ARRAY, io)) {
return(LIB3DS_FALSE);
}
lib3ds_mesh_free_face_list(mesh);
faces=lib3ds_io_read_word(io);
if (faces) {
if (!lib3ds_mesh_new_face_list(mesh, faces)) {
LIB3DS_ERROR_LOG;
return(LIB3DS_FALSE);
}
for (i=0; i<faces; ++i) {
strcpy(mesh->faceL[i].material, "");
mesh->faceL[i].points[0]=lib3ds_io_read_word(io);
mesh->faceL[i].points[1]=lib3ds_io_read_word(io);
mesh->faceL[i].points[2]=lib3ds_io_read_word(io);
mesh->faceL[i].flags=lib3ds_io_read_word(io);
}
lib3ds_chunk_read_tell(&c, io);
while ((chunk=lib3ds_chunk_read_next(&c, io))!=0) {
switch (chunk) {
case LIB3DS_SMOOTH_GROUP:
{
unsigned i;
for (i=0; i<mesh->faces; ++i) {
mesh->faceL[i].smoothing=lib3ds_io_read_dword(io);
}
}
break;
case LIB3DS_MSH_MAT_GROUP:
{
char name[64];
unsigned faces;
unsigned i;
unsigned index;
if (!lib3ds_io_read_string(io, name, 64)) {
return(LIB3DS_FALSE);
}
faces=lib3ds_io_read_word(io);
for (i=0; i<faces; ++i) {
index=lib3ds_io_read_word(io);
ASSERT(index<mesh->faces);
strcpy(mesh->faceL[index].material, name);
}
}
break;
case LIB3DS_MSH_BOXMAP:
{
char name[64];
if (!lib3ds_io_read_string(io, name, 64)) {
return(LIB3DS_FALSE);
}
strcpy(mesh->box_map.front, name);
if (!lib3ds_io_read_string(io, name, 64)) {
return(LIB3DS_FALSE);
}
strcpy(mesh->box_map.back, name);
if (!lib3ds_io_read_string(io, name, 64)) {
return(LIB3DS_FALSE);
}
strcpy(mesh->box_map.left, name);
if (!lib3ds_io_read_string(io, name, 64)) {
return(LIB3DS_FALSE);
}
strcpy(mesh->box_map.right, name);
if (!lib3ds_io_read_string(io, name, 64)) {
return(LIB3DS_FALSE);
}
strcpy(mesh->box_map.top, name);
if (!lib3ds_io_read_string(io, name, 64)) {
return(LIB3DS_FALSE);
}
strcpy(mesh->box_map.bottom, name);
}
break;
default:
lib3ds_chunk_unknown(chunk);
}
}
}
lib3ds_chunk_read_end(&c, io);
return(LIB3DS_TRUE);
}
/*!
* Read 3ds file data into a Lib3dsFile object.
*
* \param file The Lib3dsFile object to be filled.
* \param io A Lib3dsIo object previously set up by the caller.
*
* \return LIB3DS_TRUE on success, LIB3DS_FALSE on failure.
*/
int
lib3ds_file_read(Lib3dsFile *file, Lib3dsIo *io) {
Lib3dsChunk c;
uint16_t chunk;
Lib3dsIoImpl *impl;
lib3ds_io_setup(io);
impl = (Lib3dsIoImpl*)io->impl;
if (setjmp(impl->jmpbuf) != 0) {
lib3ds_io_cleanup(io);
return FALSE;
}
lib3ds_chunk_read_start(&c, 0, io);
switch (c.chunk) {
case CHK_MDATA: {
lib3ds_chunk_read_reset(&c, io);
mdata_read(file, io);
break;
}
case CHK_M3DMAGIC:
case CHK_MLIBMAGIC:
case CHK_CMAGIC: {
while ((chunk = lib3ds_chunk_read_next(&c, io)) != 0) {
switch (chunk) {
case CHK_M3D_VERSION: {
file->mesh_version = lib3ds_io_read_dword(io);
break;
}
case CHK_MDATA: {
lib3ds_chunk_read_reset(&c, io);
mdata_read(file, io);
break;
}
case CHK_KFDATA: {
lib3ds_chunk_read_reset(&c, io);
kfdata_read(file, io);
break;
}
default:
lib3ds_chunk_unknown(chunk, io);
}
}
break;
}
default:
lib3ds_chunk_unknown(c.chunk, io);
return FALSE;
}
lib3ds_chunk_read_end(&c, io);
memset(impl->jmpbuf, 0, sizeof(impl->jmpbuf));
lib3ds_io_cleanup(io);
return TRUE;
}
