void swap_polygon_model_data(ubyte *data)
{
int i;
short n;
g3s_uvl *uvl_val;
ubyte *p = data;
short_swap(wp(p));
while (w(p) != OP_EOF) {
switch (w(p)) {
case OP_DEFPOINTS:
short_swap(wp(p + 2));
n = w(p+2);
for (i = 0; i < n; i++)
vms_vector_swap(vp((p + 4) + (i * sizeof(vms_vector))));
p += n*sizeof(struct vms_vector) + 4;
break;
case OP_DEFP_START:
short_swap(wp(p + 2));
short_swap(wp(p + 4));
n = w(p+2);
for (i = 0; i < n; i++)
vms_vector_swap(vp((p + 8) + (i * sizeof(vms_vector))));
p += n*sizeof(struct vms_vector) + 8;
break;
case OP_FLATPOLY:
short_swap(wp(p+2));
n = w(p+2);
vms_vector_swap(vp(p + 4));
vms_vector_swap(vp(p + 16));
short_swap(wp(p+28));
for (i=0; i < n; i++)
short_swap(wp(p + 30 + (i * 2)));
p += 30 + ((n&~1)+1)*2;
break;
case OP_TMAPPOLY:
short_swap(wp(p+2));
n = w(p+2);
vms_vector_swap(vp(p + 4));
vms_vector_swap(vp(p + 16));
for (i=0;i<n;i++) {
uvl_val = (g3s_uvl *)((p+30+((n&~1)+1)*2) + (i * sizeof(g3s_uvl)));
fix_swap(&uvl_val->u);
fix_swap(&uvl_val->v);
}
short_swap(wp(p+28));
for (i=0;i<n;i++)
short_swap(wp(p + 30 + (i * 2)));
p += 30 + ((n&~1)+1)*2 + n*12;
break;
case OP_SORTNORM:
vms_vector_swap(vp(p + 4));
vms_vector_swap(vp(p + 16));
short_swap(wp(p + 28));
short_swap(wp(p + 30));
swap_polygon_model_data(p + w(p+28));
swap_polygon_model_data(p + w(p+30));
p += 32;
break;
case OP_RODBM:
vms_vector_swap(vp(p + 20));
vms_vector_swap(vp(p + 4));
short_swap(wp(p+2));
fix_swap(fp(p + 16));
fix_swap(fp(p + 32));
p+=36;
break;
case OP_SUBCALL:
short_swap(wp(p+2));
vms_vector_swap(vp(p+4));
short_swap(wp(p+16));
swap_polygon_model_data(p + w(p+16));
p += 20;
break;
case OP_GLOW:
short_swap(wp(p + 2));
p += 4;
break;
default:
Error("invalid polygon model\n"); //Int3();
}
short_swap(wp(p));
}
}
void swap_polygon_model_data(ubyte *data) {
int i;
short n;
g3s_uvl *uvl_val;
ubyte *p = data;
short_swap(wp(p));
while (w(p) != OP_EOF) {
switch (w(p)) {
case OP_DEFPOINTS:
short_swap(wp(p + 2));
n = w(p + 2);
for (i = 0; i < n; i++)
vms_vector_swap(vp((p + 4) + (i * sizeof(vms_vector))));
p += n*sizeof(struct vms_vector) + 4;
break;
case OP_DEFP_START:
short_swap(wp(p + 2));
short_swap(wp(p + 4));
n = w(p + 2);
for (i = 0; i < n; i++)
vms_vector_swap(vp((p + 8) + (i * sizeof(vms_vector))));
p += n*sizeof(struct vms_vector) + 8;
break;
case OP_FLATPOLY:
short_swap(wp(p + 2));
n = w(p + 2);
vms_vector_swap(vp(p + 4));
vms_vector_swap(vp(p + 16));
short_swap(wp(p + 28));
// swap the colors 0 and 255 here!!!!
if (w(p + 28) == 0)
w(p + 28) = 255;
else if (w(p + 28) == 255)
w(p + 28) = 0;
for (i = 0; i < n; i++)
short_swap(wp(p + 30 + (i * 2)));
p += 30 + ((n&~1) + 1) * 2;
break;
case OP_TMAPPOLY:
short_swap(wp(p + 2));
n = w(p + 2);
vms_vector_swap(vp(p + 4));
vms_vector_swap(vp(p + 16));
for (i = 0; i<n; i++) {
uvl_val = (g3s_uvl *)((p + 30 + ((n&~1) + 1) * 2) + (i * sizeof(g3s_uvl)));
uvl_val->u = (fix)swapint((int)uvl_val->u);
uvl_val->v = (fix)swapint((int)uvl_val->v);
}
short_swap(wp(p + 28));
for (i = 0; i<n; i++)
short_swap(wp(p + 30 + (i * 2)));
p += 30 + ((n&~1) + 1) * 2 + n * 12;
break;
case OP_SORTNORM:
vms_vector_swap(vp(p + 4));
vms_vector_swap(vp(p + 16));
short_swap(wp(p + 28));
short_swap(wp(p + 30));
swap_polygon_model_data(p + w(p + 28));
swap_polygon_model_data(p + w(p + 30));
p += 32;
break;
case OP_RODBM:
vms_vector_swap(vp(p + 20));
vms_vector_swap(vp(p + 4));
short_swap(wp(p + 2));
*((int *)(p + 16)) = swapint(*((int *)(p + 16)));
*((int *)(p + 32)) = swapint(*((int *)(p + 32)));
p += 36;
break;
case OP_SUBCALL:
short_swap(wp(p + 2));
vms_vector_swap(vp(p + 4));
short_swap(wp(p + 16));
swap_polygon_model_data(p + w(p + 16));
p += 20;
break;
case OP_GLOW:
short_swap(wp(p + 2));
p += 4;
break;
default:
Int3();
}
short_swap(wp(p));
}
}