TakeV/dxx-rebirth
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Factor out morph model header parsing

Browse source
This commit is contained in:
Kp 2020-02-26 05:07:34 +00:00
parent aaaf212dca
commit d876874475
1 changed files with 78 additions and 65 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

143
similar/main/morph.cpp
View file

@ -52,6 +52,51 @@ using std::max;
namespace dcx {
namespace {
class invalid_morph_model_type : public std::runtime_error
{
__attribute_cold
static std::string prepare_message(const unsigned type)
{
char buf[32 + sizeof("4294967295")];
const auto len = std::snprintf(buf, sizeof buf, "invalid morph model type: %u", type);
return std::string(buf, len);
}
public:
invalid_morph_model_type(const unsigned type) :
runtime_error(prepare_message(type))
{
}
};
struct submodel_data
{
const uint16_t *body;
const unsigned type;
const unsigned nverts;
const unsigned startpoint;
};
submodel_data parse_model_data_header(const polymodel &pm, const unsigned submodel_num)
{
auto data = reinterpret_cast<const uint16_t *>(&pm.model_data[pm.submodel_ptrs[submodel_num]]);
const auto ptype = data++;
const uint16_t type = *ptype;
const auto pnverts = data++;
const uint16_t startpoint = (type == 7)
? *exchange(data, data + 2) //get start point number, skip pad
: (type == 1)
? 0 //start at zero
: throw invalid_morph_model_type(type);
const uint16_t nverts = *pnverts;
return {data, type, nverts, startpoint};
}
}
morph_data::morph_data(object_base &o) :
obj(&o), Morph_sig(o.signature)
{
@ -91,44 +136,34 @@ static void assign_min(fix &a, const fix &b)
a = std::min(a, b);
}
template <fix vms_vector::*p>
static void update_bounds(vms_vector &minv, vms_vector &maxv, const vms_vector *vp)
static void update_bounds(vms_vector &minv, vms_vector &maxv, const vms_vector &v, fix vms_vector::*const p)
{
auto &mx = maxv.*p;
assign_max(mx, vp->*p);
assign_max(mx, v.*p);
auto &mn = minv.*p;
assign_min(mn, vp->*p);
assign_min(mn, v.*p);
}
//takes pm, fills in min & max
static void find_min_max(polymodel *pm,int submodel_num,vms_vector &minv,vms_vector &maxv)
static void find_min_max(const polymodel &pm, const unsigned submodel_num, vms_vector &minv, vms_vector &maxv)
{
ushort nverts;
uint16_t type;
auto data = reinterpret_cast<uint16_t *>(&pm->model_data[pm->submodel_ptrs[submodel_num]]);
type = *data++;
Assert(type == 7 || type == 1);
nverts = *data++;
if (type==7)
data+=2; //skip start & pad
auto vp = reinterpret_cast<const vms_vector *>(data);
minv = maxv = *vp++;
nverts--;
while (nverts--) {
update_bounds<&vms_vector::x>(minv, maxv, vp);
update_bounds<&vms_vector::y>(minv, maxv, vp);
update_bounds<&vms_vector::z>(minv, maxv, vp);
vp++;
const auto &&sd = parse_model_data_header(pm, submodel_num);
const unsigned nverts = sd.nverts;
if (!nverts)
{
minv = maxv = {};
return;
}
const auto vp = reinterpret_cast<const vms_vector *>(sd.body);
minv = maxv = *vp;
range_for (auto &v, unchecked_partial_range(vp + 1, nverts - 1))
{
update_bounds(minv, maxv, v, &vms_vector::x);
update_bounds(minv, maxv, v, &vms_vector::y);
update_bounds(minv, maxv, v, &vms_vector::z);
}
}
#define MORPH_RATE (f1_0*3)
@ -158,28 +193,17 @@ static fix compute_bounding_box_extents(const vms_vector &vp, const vms_vector &
return k;
}
static void init_points(const polymodel *const pm, const vms_vector *const box_size, const unsigned submodel_num, morph_data *const md)
static void init_points(const polymodel &pm, const vms_vector *const box_size, const unsigned submodel_num, morph_data *const md)
{
auto data = reinterpret_cast<const uint16_t *>(&pm->model_data[pm->submodel_ptrs[submodel_num]]);
const uint16_t type = *data++;
Assert(type == 7 || type == 1);
const uint16_t nverts = *data++;
const auto &&sd = parse_model_data_header(pm, submodel_num);
const unsigned startpoint = sd.startpoint;
const unsigned endpoint = sd.startpoint + sd.nverts;
md->n_morphing_points[submodel_num] = 0;
const unsigned startpoint = (type == 7)
? *exchange(data, data + 2) //get start point number, skip pad
: 0; //start at zero
const unsigned endpoint = startpoint + nverts;
md->submodel_startpoints[submodel_num] = startpoint;
auto &&zr = zip(
unchecked_partial_range(reinterpret_cast<const vms_vector *>(data), nverts),
unchecked_partial_range(reinterpret_cast<const vms_vector *>(sd.body), sd.nverts),
partial_range(md->morph_vecs, startpoint, endpoint),
partial_range(md->morph_deltas, startpoint, endpoint),
partial_range(md->morph_times, startpoint, endpoint)
@ -207,21 +231,12 @@ static void init_points(const polymodel *const pm, const vms_vector *const box_s
}
}
static void update_points(const polymodel *const pm, const unsigned submodel_num, morph_data *const md)
static void update_points(const polymodel &pm, const unsigned submodel_num, morph_data *const md)
{
auto data = reinterpret_cast<uint16_t *>(&pm->model_data[pm->submodel_ptrs[submodel_num]]);
const auto &&sd = parse_model_data_header(pm, submodel_num);
const unsigned startpoint = sd.startpoint;
const uint16_t type = *data++;
Assert(type == 7 || type == 1);
const uint16_t nverts = *data++;
const unsigned startpoint = (type == 7)
? *exchange(data, data + 2) //get start point number, skip pad
: 0; //start at zero
range_for (auto &&e, enumerate(unchecked_partial_range(reinterpret_cast<const vms_vector *>(data), nverts), startpoint))
range_for (auto &&e, enumerate(unchecked_partial_range(reinterpret_cast<const vms_vector *>(sd.body), sd.nverts), startpoint))
{
const auto vp = &e.value;
const auto i = e.idx;
@ -238,7 +253,6 @@ static void update_points(const polymodel *const pm, const unsigned submodel_num
}
}
//process the morphing object for one frame
void do_morph_frame(object &obj)
{
@ -253,17 +267,17 @@ void do_morph_frame(object &obj)
assert(md->obj == &obj);
auto &Polygon_models = LevelSharedPolygonModelState.Polygon_models;
const polymodel *const pm = &Polygon_models[obj.rtype.pobj_info.model_num];
const polymodel &pm = Polygon_models[obj.rtype.pobj_info.model_num];
for (uint_fast32_t i = 0; i != pm->n_models; ++i)
for (uint_fast32_t i = 0; i != pm.n_models; ++i)
if (md->submodel_active[i] == morph_data::submodel_state::animating)
{
update_points(pm,i,md);
if (md->n_morphing_points[i] == 0) { //maybe start submodel
md->submodel_active[i] = morph_data::submodel_state::visible; //not animating, just visible
md->n_submodels_active--; //this one done animating
for (uint_fast32_t t = 0; t != pm->n_models; ++t)
if (pm->submodel_parents[t] == i) { //start this one
for (uint_fast32_t t = 0; t != pm.n_models; ++t)
if (pm.submodel_parents[t] == i) { //start this one
init_points(pm,nullptr,t,md);
md->n_submodels_active++;
@ -297,7 +311,6 @@ void init_morphs()
//make the object morph
void morph_start(const vmobjptr_t obj)
{
polymodel *pm;
vms_vector pmmin,pmmax;
vms_vector box_size;
@ -334,7 +347,7 @@ void morph_start(const vmobjptr_t obj)
obj->mtype.phys_info.rotvel = morph_rotvel;
auto &Polygon_models = LevelSharedPolygonModelState.Polygon_models;
pm = &Polygon_models[obj->rtype.pobj_info.model_num];
auto &pm = Polygon_models[obj->rtype.pobj_info.model_num];
find_min_max(pm,0,pmmin,pmmax);