dgInt32 AddFilterFace(dgUnsigned32 count, dgInt32* const pool)
{
BeginFace();
_ASSERTE(count);
bool reduction = true;
while (reduction && !AddFace(dgInt32(count), pool))
{
reduction = false;
if (count > 3)
{
for (dgUnsigned32 i = 0; i < count; i++)
{
for (dgUnsigned32 j = i + 1; j < count; j++)
{
if (pool[j] == pool[i])
{
for (i = j; i < count - 1; i++)
{
pool[i] = pool[i + 1];
}
count--;
i = count;
reduction = true;
break;
}
}
}
}
}
EndFace();
_ASSERTE(reduction);
return reduction ? dgInt32(count) : 0;
}
hacd::HaI32 AddFilterFace (hacd::HaU32 count, hacd::HaI32* const pool)
{
BeginFace();
HACD_ASSERT (count);
bool reduction = true;
while (reduction && !AddFace (hacd::HaI32 (count), pool)) {
reduction = false;
if (count >3) {
for (hacd::HaU32 i = 0; i < count; i ++) {
for (hacd::HaU32 j = i + 1; j < count; j ++) {
if (pool[j] == pool[i]) {
for (i = j; i < count - 1; i ++) {
pool[i] = pool[i + 1];
}
count --;
i = count;
reduction = true;
break;
}
}
}
}
}
EndFace();
HACD_ASSERT (reduction);
return reduction ? hacd::HaI32 (count) : 0;
}
static void ReadOBJ(const char *filename) {
FILE *fp = fopen(filename, "r");
if (fp == NULL)
sreFatalError("Could not open file %s.", filename);
for (;;) {
char *str = GetWords(fp);
if (str == NULL)
// End of file.
break;
RemoveComments();
if (nu_words == 0)
continue;
int command = - 1;
if (strcmp(words[0], "v") == 0)
command = 0;
else if (strcmp(words[0], "vn") == 0)
command = 1;
else if (strcmp(words[0], "vt") == 0)
command = 2;
else if (strcmp(words[0], "f") == 0)
command = 3;
if (command < 0)
// First word not recognized.
continue;
if (command <= 2) {
// Get up to four coordinates.
float coord[4];
int n = GetCoordinates(1, coord);
if (command == 0)
AddVertexAttribute(SRE_ATTRIBUTE_POSITION, coord, n);
else if (command == 1)
AddVertexAttribute(SRE_ATTRIBUTE_NORMAL, coord, n);
else
AddVertexAttribute(SRE_ATTRIBUTE_TEXCOORDS, coord, n);
}
else {
// Face defition.
BeginFace(4, SRE_POSITION_MASK | SRE_NORMAL_MASK | SRE_TEXCOORDS_MASK);
for (int word_index = 1; word_index < nu_words; word_index++) {
int vertex_index[3];
DecodeOBJFaceIndices(words[word_index], vertex_index);
for (int k = 0; k < 3; k++) {
// Special value INT_MAX means not used; AddFace expects - 1
// for unused attributes.
if (vertex_index[k] == INT_MAX)
vertex_index[k] = - 1;
else {
if (vertex_index[k] > 0)
// Regular index; counting starts at 1 in OBJ files.
vertex_index[k]--;
else if (vertex_index[k] < 0)
// Negative numer is relative index.
vertex_index[k] += nu_attribute_vertices[OBJ_attributes[k]];
else
ModelFileReadError("Vertex index of 0 not allowed in OBJ file");
}
}
AddFaceVertex(OBJ_attributes, vertex_index);
}
EndFace();
}
}
fclose(fp);
}
