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From Ulrich Hertlien, supported add to textures in the .lwo format.

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This commit is contained in:
Robert Osfield
2002-09-20 15:54:17 +00:00
parent 55215651d7
commit 444a6eaf97
4 changed files with 231 additions and 43 deletions
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56
src/osgPlugins/lwo/Lwo2.cpp
View File

@@ -64,12 +64,12 @@ Lwo2::~Lwo2()
bool
Lwo2::ReadFile( const string& filename )
{
notify(INFO) << "Opening file: " << filename << endl;
notify(INFO) << "Opening file: " << filename << std::endl;
_fin.open(filename.c_str(), ios::in | ios::binary );
if (!_fin.is_open())
{
notify(NOTICE) << "Can't open file '" << filename << "'" << endl;
notify(NOTICE) << "Can't open file '" << filename << "'" << std::endl;
return false;
}
@@ -77,30 +77,30 @@ Lwo2::ReadFile( const string& filename )
// http://www.lightwave3d.com/developer/75lwsdk/docs/filefmts/eaiff85.html
if (_read_long() != tag_FORM)
{
notify(INFO) << "File '" << filename << "' is not IFF format file." << endl;
notify(INFO) << "File '" << filename << "' is not IFF format file." << std::endl;
_fin.close();
return false;
}
else
{
notify(INFO) << "Detected EA-IFF85 format" << endl;
notify(INFO) << "Detected EA-IFF85 format" << std::endl;
}
unsigned long form_size = _read_long();
notify(DEBUG_INFO) << "Form size: " << form_size << endl;
notify(DEBUG_INFO) << "Form size: " << form_size << std::endl;
// checking LWO2 format
// http://www.lightwave3d.com/developer/75lwsdk/docs/filefmts/lwo2.html
if (_read_long() != tag_LWO2)
{
unsigned long make_id(const char*);
notify(DEBUG_INFO) << "File '" << filename << "' is not LWO2 format file." << endl;
notify(DEBUG_INFO) << "File '" << filename << "' is not LWO2 format file." << std::endl;
_fin.close();
return false;
}
else
{
notify(INFO) << "Detected LWO2 format" << endl;
notify(INFO) << "Detected LWO2 format" << std::endl;
}
_geode = osgNew osg::Geode();
@@ -229,7 +229,7 @@ Lwo2::_print_tag(unsigned int tag, unsigned int size) {
<< char(tag >> 8)
<< char(tag)
<< " size " << size << " bytes"
<< endl;
<< std::endl;
}
// print 4-char type
@@ -240,7 +240,7 @@ Lwo2::_print_type(unsigned int type) {
<< char(type >> 16)
<< char(type >> 8)
<< char(type)
<< endl;
<< std::endl;
}
// read TAGS info
@@ -255,7 +255,7 @@ Lwo2::_read_tag_strings(unsigned long size)
size -= name.length() + name.length() % 2;
_tags.push_back(name);
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << endl;
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << std::endl;
}
}
@@ -298,7 +298,7 @@ void
Lwo2::_read_points(unsigned long size)
{
int count = size / 12;
notify(DEBUG_INFO) << " count \t" << count << endl;
notify(DEBUG_INFO) << " count \t" << count << std::endl;
while (count--)
{
@@ -342,7 +342,7 @@ Lwo2::_read_polygons(unsigned long size)
{
// not recognized yet
notify(DEBUG_INFO) << " skipping..." << endl;
notify(DEBUG_INFO) << " skipping..." << std::endl;
_fin.seekg(size + size % 2, ios::cur);
}
}
@@ -360,12 +360,12 @@ Lwo2::_read_vertex_mapping(unsigned long size)
short dimension = _read_short();
size -= 2;
notify(DEBUG_INFO) << " dimension \t" << dimension << endl;
notify(DEBUG_INFO) << " dimension \t" << dimension << std::endl;
string name;
_read_string(name);
size -= name.length() + name.length() % 2;
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << endl;
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << std::endl;
if (type == tag_TXUV && dimension == 2)
{
@@ -387,7 +387,7 @@ Lwo2::_read_vertex_mapping(unsigned long size)
{
// not recognized yet
notify(DEBUG_INFO) << " skipping..." << endl;
notify(DEBUG_INFO) << " skipping..." << std::endl;
_fin.seekg(size + size % 2, ios::cur);
}
@@ -406,12 +406,12 @@ Lwo2::_read_polygons_mapping(unsigned long size)
short dimension = _read_short();
size -= 2;
notify(DEBUG_INFO) << " dimension \t" << dimension << endl;
notify(DEBUG_INFO) << " dimension \t" << dimension << std::endl;
string name;
_read_string(name);
size -= name.length() + name.length() % 2;
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << endl;
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << std::endl;
if (type == tag_TXUV && dimension == 2)
{
@@ -438,7 +438,7 @@ Lwo2::_read_polygons_mapping(unsigned long size)
{
// not recognized yet
notify(DEBUG_INFO) << " skipping..." << endl;
notify(DEBUG_INFO) << " skipping..." << std::endl;
_fin.seekg(size + size % 2, ios::cur);
}
@@ -473,7 +473,7 @@ Lwo2::_read_polygon_tag_mapping(unsigned long size)
{
// not recognized yet
notify(DEBUG_INFO) << " skipping..." << endl;
notify(DEBUG_INFO) << " skipping..." << std::endl;
_fin.seekg(size + size % 2, ios::cur);
}
}
@@ -485,7 +485,7 @@ Lwo2::_read_image_definition(unsigned long size)
{
unsigned int index = _read_long();
size -= 4;
notify(DEBUG_INFO) << " index \t" << index << endl;
notify(DEBUG_INFO) << " index \t" << index << std::endl;
unsigned int type;
while (size > 0)
@@ -511,7 +511,7 @@ Lwo2::_read_image_definition(unsigned long size)
_images[index] = name.c_str();
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << endl;
notify(DEBUG_INFO) << " name \t'" << name.c_str() << "'" << std::endl;
}
}
@@ -526,12 +526,12 @@ Lwo2::_read_surface(unsigned long size)
_read_string(surface->name);
size -= surface->name.length() + surface->name.length() % 2;
notify(DEBUG_INFO) << " name \t'" << surface->name.c_str() << "'" << endl;
notify(DEBUG_INFO) << " name \t'" << surface->name.c_str() << "'" << std::endl;
string source;
_read_string(source);
size -= source.length() + source.length() % 2;
notify(DEBUG_INFO) << " source \t'" << source.c_str() << "'" << endl;
notify(DEBUG_INFO) << " source \t'" << source.c_str() << "'" << std::endl;
unsigned long current_tag_name;
unsigned short current_tag_size;
@@ -563,7 +563,7 @@ Lwo2::_read_surface(unsigned long size)
if (current_tag_name == tag_IMAG)
{
surface->image_index = _read_short();
notify(DEBUG_INFO) << " image index\t" << surface->image_index << endl;
notify(DEBUG_INFO) << " image index\t" << surface->image_index << std::endl;
blok_size -= 2;
}
else if (current_tag_name == tag_IMAP)
@@ -576,7 +576,7 @@ Lwo2::_read_surface(unsigned long size)
string ordinal;
_read_string(ordinal);
imap_size -= ordinal.length() + ordinal.length() % 2;
notify(DEBUG_INFO) << " ordinal \t'" << ordinal.c_str() << "'" << endl;
notify(DEBUG_INFO) << " ordinal \t'" << ordinal.c_str() << "'" << std::endl;
while(imap_size > 0)
{
@@ -604,7 +604,7 @@ Lwo2::_read_surface(unsigned long size)
float g = _read_float();
float b = _read_float();
surface->color.set(r,g,b);
notify(DEBUG_INFO) << " color \t" << surface->color << endl;
notify(DEBUG_INFO) << " color \t" << surface->color << std::endl;
current_tag_size -= 12;
size -= 12;
@@ -662,9 +662,9 @@ Lwo2::_generate_statesets_from_surfaces()
// check if exist texture image for this surface
if (surface->image_index >= 0)
{
notify(DEBUG_INFO) << "\tloading image '" << _images[surface->image_index] << "'" << endl;
notify(DEBUG_INFO) << "\tloading image '" << _images[surface->image_index] << "'" << std::endl;
Image* image = osgDB::readImageFile(_images[surface->image_index]);
notify(DEBUG_INFO) << "\tresult - " << image << endl;
notify(DEBUG_INFO) << "\tresult - " << image << std::endl;
if (image)
{
Texture2D* texture = osgNew osg::Texture2D;

26
src/osgPlugins/lwo/ReaderWriterLWO.cpp
View File

@@ -136,13 +136,11 @@ osgDB::ReaderWriter::ReadResult ReaderWriterLWO::readNode_LWO1(const std::string
}
MaterialToGeometryCollectionMap::iterator itr;
for(itr=mtgcm.begin();
itr!=mtgcm.end();
++itr)
for(itr=mtgcm.begin(); itr!=mtgcm.end(); ++itr)
{
GeometryCollection& gc = itr->second;
if (gc._numPrimitives)
if (gc._numPrimitives)
{
lwMaterial& lw_material = lw->material[itr->first];
@@ -165,17 +163,31 @@ osgDB::ReaderWriter::ReadResult ReaderWriterLWO::readNode_LWO1(const std::string
// set up texture if needed.
if (gc._numPrimitivesWithTexCoords==gc._numPrimitives)
{
if (strlen(lw_material.name)!=0)
if (lw_material.ctex.flags && strlen(lw_material.ctex.name)!=0)
{
osg::Image* image = osgDB::readImageFile(lw_material.name);
osg::notify(osg::INFO) << "ctex " << lw_material.ctex.name << std::endl;
osg::Image* image = osgDB::readImageFile(lw_material.ctex.name);
if (image)
{
// create state
osg::StateSet* stateset = osgNew osg::StateSet;
// create texture
osg::Texture2D* texture = osgNew osg::Texture2D;
texture->setImage(image);
// texture wrap mode
static osg::Texture::WrapMode mode[] = {
osg::Texture::CLAMP,
osg::Texture::CLAMP,
osg::Texture::REPEAT,
osg::Texture::MIRROR
};
texture->setWrap(osg::Texture::WRAP_S,
mode[lw_material.ctex.u_wrap]);
texture->setWrap(osg::Texture::WRAP_T,
mode[lw_material.ctex.v_wrap]);
stateset->setTextureAttributeAndModes(0,texture,osg::StateAttribute::ON);
gc._texturesActive=true;

147
src/osgPlugins/lwo/lw.cpp
View File

@@ -35,6 +35,22 @@
#define ID_POLS MK_ID('P','O','L','S')
#define ID_COLR MK_ID('C','O','L','R')
#define ID_CTEX MK_ID('C','T','E','X')
#define ID_DTEX MK_ID('D','T','E','X')
#define ID_STEX MK_ID('S','T','E','X')
#define ID_RTEX MK_ID('R','T','E','X')
#define ID_TTEX MK_ID('T','T','E','X')
#define ID_BTEX MK_ID('B','T','E','X')
#define ID_TIMG MK_ID('T','I','M','G')
#define ID_TFLG MK_ID('T','F','L','G')
#define ID_TSIZ MK_ID('T','S','I','Z')
#define ID_TCTR MK_ID('T','C','T','R')
#define ID_TFAL MK_ID('T','F','A','L')
#define ID_TVEL MK_ID('T','V','E','L')
#define ID_TWRP MK_ID('T','W','R','P')
#define FALSE 0
#define TRUE 1
@@ -132,6 +148,8 @@ static void read_surf(FILE *f, gint nbytes, lwObject *lwo)
}
g_return_if_fail(material != NULL);
lwTexture* tex = NULL;
/* read values */
while (nbytes > 0) {
gint id = read_long(f);
@@ -145,6 +163,88 @@ static void read_surf(FILE *f, gint nbytes, lwObject *lwo)
material->b = read_char(f) / 255.0f;
read_char(f); /* dummy */
break;
case ID_CTEX:
case ID_DTEX:
case ID_STEX:
case ID_RTEX:
case ID_TTEX:
case ID_BTEX:
len -= read_string(f, name);
if (id == ID_CTEX) {
tex = &material->ctex;
}
else
tex = NULL;
break;
case ID_TIMG: {
len -= read_string(f, name);
if (tex) {
/* last component of path */
char* slash = strrchr(name, '/');
if (!slash)
slash = strrchr(name, '\\');
if (slash)
strcpy(tex->name, slash+1);
else
strcpy(tex->name, name);
//printf("tex name=%s\n", tex->name);
}
} break;
case ID_TFLG:
if (tex) {
tex->flags = read_short(f);
}
else
fseek(f, len+(len%2), SEEK_CUR);
break;
case ID_TSIZ:
if (tex) {
tex->sx = read_float(f);
tex->sy = read_float(f);
tex->sz = read_float(f);
}
else
fseek(f, len+(len%2), SEEK_CUR);
break;
case ID_TCTR:
if (tex) {
tex->cx = read_float(f);
tex->cy = read_float(f);
tex->cz = read_float(f);
}
else
fseek(f, len+(len%2), SEEK_CUR);
break;
case ID_TFAL:
if (tex) {
float vx,vy,vz;
vx = read_float(f);
vy = read_float(f);
vz = read_float(f);
//printf("fal %.2f %.2f %.2f\n", vx,vy,vz);
}
else
fseek(f, len+(len%2), SEEK_CUR);
break;
case ID_TVEL:
if (tex) {
float vx,vy,vz;
vx = read_float(f);
vy = read_float(f);
vz = read_float(f);
//printf("vel %.2f %.2f %.2f\n", vx,vy,vz);
}
else
fseek(f, len+(len%2), SEEK_CUR);
break;
case ID_TWRP:
if (tex) {
tex->u_wrap = (lwTextureWrap) read_short(f);
tex->v_wrap = (lwTextureWrap) read_short(f);
}
else
fseek(f, len+(len%2), SEEK_CUR);
break;
default:
fseek(f, len+(len%2), SEEK_CUR);
}
@@ -175,7 +275,7 @@ static void read_pols(FILE *f, int nbytes, lwObject *lwo)
/* allocate space for points */
face->index = (int*) g_malloc0(sizeof(int)*face->index_cnt);
/* read points in */
for (i=0; i<face->index_cnt; i++) {
face->index[i] = read_short(f);
@@ -271,7 +371,6 @@ lwObject *lw_object_read(const char *lw_file, std::ostream& output)
/* create new lwObject */
lw_object = (lwObject*) g_malloc0(sizeof(lwObject));
lw_object->init();
/* read chunks */
@@ -299,6 +398,45 @@ lwObject *lw_object_read(const char *lw_file, std::ostream& output)
}
fclose(f);
for (int i = 0; i < lw_object->face_cnt; i++) {
int mati = lw_object->face[i].material;
if (mati == 0)
continue;
/* fetch material */
lwMaterial* mat = &lw_object->material[mati];
unsigned int flags = mat->ctex.flags;
if (flags == 0)
continue;
/* calculate texture coordinates */
lwFace* face = &lw_object->face[i];
face->texcoord = (float*) g_malloc0(face->index_cnt * sizeof(float) * 2);
for (int j = 0; j < face->index_cnt; j++) {
int vi = face->index[j];
GLfloat* vtx = &lw_object->vertex[vi*3];
GLfloat u,v;
u = v = 0.0f;
if (flags & X_AXIS) {
u = (vtx[1] - mat->ctex.cy) / mat->ctex.sy;
v = (vtx[2] - mat->ctex.cz) / mat->ctex.sz;
}
else if (flags & Y_AXIS) {
u = (vtx[0] - mat->ctex.cx) / mat->ctex.sx;
v = (vtx[2] - mat->ctex.cz) / mat->ctex.sz;
}
else if (flags & Z_AXIS) {
u = (vtx[0] - mat->ctex.cx) / mat->ctex.sx;
v = (vtx[1] - mat->ctex.cy) / mat->ctex.sy;
}
face->texcoord[j*2] = u + 0.5f;
face->texcoord[j*2+1] = v + 0.5f;
//printf("%.2f %.2f\n", u,v);
}
}
return lw_object;
}
@@ -314,8 +452,11 @@ void lw_object_free(lwObject *lw_object)
if (lw_object->face) {
int i;
for (i=0; i<lw_object->face_cnt; i++)
for (i=0; i<lw_object->face_cnt; i++) {
g_free(lw_object->face[i].index);
if (lw_object->face[i].texcoord)
g_free(lw_object->face[i].texcoord);
}
g_free(lw_object->face);
}
g_free(lw_object->material);

45
src/osgPlugins/lwo/lw.h
View File

@@ -26,10 +26,45 @@
#define LW_MAX_POINTS 200
#define LW_MAX_NAME_LEN 500
enum lwTextureFlags {
X_AXIS = 0x01,
Y_AXIS = 0x02,
Z_AXIS = 0x04,
WORLD_COORDS = 0x10,
NEGATIVE_IMAGE = 0x20,
PIXEL_BLENDING = 0x40,
ANTIALIASING = 0x80
};
enum lwTextureWrap {
BLACK = 0,
CLAMP = 1,
REPEAT = 2,
MIRROR_REPEAT = 3
};
struct lwTexture
{
char name[LW_MAX_NAME_LEN];
unsigned int flags;
lwTextureWrap u_wrap, v_wrap;
GLfloat sx,sy,sz;
GLfloat cx,cy,cz;
void init() {
name[0] = 0;
flags = 0;
u_wrap = v_wrap = REPEAT;
sx = sy = sz = 0.0f;
cx = cy = cz = 0.0f;
}
};
struct lwMaterial
{
char name[LW_MAX_NAME_LEN];
GLfloat r,g,b;
struct lwTexture ctex;
lwMaterial()
{
@@ -37,6 +72,7 @@ struct lwMaterial
g=1.0f;
b=1.0f;
name[0] = 0;
ctex.init();
}
};
@@ -49,10 +85,10 @@ struct lwFace
void init()
{
material = 0; /* material of this face */
index_cnt = 0; /* number of vertices */
index = 0; /* index to vertex */
texcoord = 0; /* u,v texture coordinates */
material = 0; /* material of this face */
index_cnt = 0; /* number of vertices */
index = 0; /* index to vertex */
texcoord = 0; /* u,v texture coordinates */
}
};
@@ -79,7 +115,6 @@ struct lwObject
vertex_cnt=0;
vertex = 0;
}
};