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vcglib
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Added resize and chenged storage strategy.

This commit is contained in:
Federico Ponchio 2004-07-04 15:23:13 +00:00
parent f85cc95882
commit 482bb368f1
1 changed files with 25 additions and 26 deletions
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51
apps/nexus/patch.h
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@ -12,35 +12,32 @@ struct Chunk {
class Patch {
public:
Patch(Chunk *s = NULL): start(s) {}
unsigned short &VertSize() { return *(unsigned short *)start; }
vcg::Point3f *VertBegin() {
return (vcg::Point3f *)(((char *)start) + 2*sizeof(short)); }
unsigned short &FaceSize() { return *(((unsigned short *)start) + 1); }
unsigned short *FaceBegin() {
return (unsigned short *)(((char *)start) + 2*sizeof(short) +
VertSize() * sizeof(vcg::Point3f)); }
vcg::Point3f &Vert(unsigned int v) {
return VertBegin()[v];
Patch(Chunk *s = NULL, unsigned short nv = 0, unsigned short nf = 0):
start(s) {
Resize(nv, nf);
}
void Resize(unsigned short nv, unsigned short nf) {
nvert = nv;
nface = nf;
fstart = (unsigned short *)(((char *)start) +
VertSize() * sizeof(vcg::Point3f));
}
unsigned short VertSize() { return nvert; }
vcg::Point3f *VertBegin() { return (vcg::Point3f *)(start); }
unsigned short FaceSize() { return nface; }
unsigned short *FaceBegin() { return fstart; }
vcg::Point3f &Vert(unsigned int v) { return VertBegin()[v]; }
unsigned short *Face(unsigned int f) {
return FaceBegin() + f * 3;
}
unsigned short *Face(unsigned int f) { return FaceBegin() + f * 3; }
unsigned int ChunkSize() { return ChunkSize(VertSize(), FaceSize()); }
unsigned int ChunkSize() {
return ChunkSize(VertSize(), FaceSize());
}
unsigned int ByteSize() {
return ByteSize(VertSize(), FaceSize());
}
unsigned int ByteSize() { return ByteSize(VertSize(), FaceSize()); }
static unsigned int ChunkSize(unsigned short nvert, unsigned short nface) {
unsigned int size = ByteSize(nvert, nface);
@ -57,11 +54,13 @@ class Patch {
if(size < nface * 3 * sizeof(unsigned int))
size = nface * 3 * sizeof(unsigned int);
size += 2 * sizeof(unsigned short);
return size;
}
// private:
Chunk *start;
unsigned short *fstart;
unsigned short nvert;
unsigned short nface;
};
};