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/*
* Copyright 2011, Blender Foundation.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "mesh.h"
#include "attribute.h"
#include "util_debug.h"
#include "util_foreach.h"
CCL_NAMESPACE_BEGIN
/* Attribute */
void Attribute::set(ustring name_, TypeDesc type_, AttributeElement element_)
{
name = name_;
type = type_;
element = element_;
std = ATTR_STD_NONE;
/* string and matrix not supported! */
assert(type == TypeDesc::TypeFloat || type == TypeDesc::TypeColor ||
type == TypeDesc::TypePoint || type == TypeDesc::TypeVector ||
type == TypeDesc::TypeNormal);
}
void Attribute::reserve(int numverts, int numtris, int numcurves, int numkeys)
{
buffer.resize(buffer_size(numverts, numtris, numcurves, numkeys), 0);
}
void Attribute::add(const float& f)
{
char *data = (char*)&f;
size_t size = sizeof(f);
for(size_t i = 0; i < size; i++)
buffer.push_back(data[i]);
}
void Attribute::add(const float3& f)
{
char *data = (char*)&f;
size_t size = sizeof(f);
for(size_t i = 0; i < size; i++)
buffer.push_back(data[i]);
}
size_t Attribute::data_sizeof() const
{
if(type == TypeDesc::TypeFloat)
return sizeof(float);
else
return sizeof(float3);
}
size_t Attribute::element_size(int numverts, int numtris, int numcurves, int numkeys) const
{
size_t size;
switch(element) {
case ATTR_ELEMENT_VALUE:
size = 1;
break;
case ATTR_ELEMENT_VERTEX:
size = numverts;
break;
case ATTR_ELEMENT_FACE:
size = numtris;
break;
case ATTR_ELEMENT_CORNER:
size = numtris*3;
break;
case ATTR_ELEMENT_CURVE:
size = numcurves;
break;
case ATTR_ELEMENT_CURVE_KEY:
size = numkeys;
break;
default:
size = 0;
break;
}
return size;
}
size_t Attribute::buffer_size(int numverts, int numtris, int numcurves, int numkeys) const
{
return element_size(numverts, numtris, numcurves, numkeys)*data_sizeof();
}
bool Attribute::same_storage(TypeDesc a, TypeDesc b)
{
if(a == b)
return true;
if(a == TypeDesc::TypeColor || a == TypeDesc::TypePoint ||
a == TypeDesc::TypeVector || a == TypeDesc::TypeNormal)
{
if(b == TypeDesc::TypeColor || b == TypeDesc::TypePoint ||
b == TypeDesc::TypeVector || b == TypeDesc::TypeNormal)
{
return true;
}
}
return false;
}
const char *Attribute::standard_name(AttributeStandard std)
{
if(std == ATTR_STD_VERTEX_NORMAL)
return "N";
else if(std == ATTR_STD_FACE_NORMAL)
return "Ng";
else if(std == ATTR_STD_UV)
return "uv";
else if(std == ATTR_STD_GENERATED)
return "generated";
else if(std == ATTR_STD_UV_TANGENT)
return "tangent";
else if(std == ATTR_STD_UV_TANGENT_SIGN)
return "tangent_sign";
else if(std == ATTR_STD_POSITION_UNDEFORMED)
return "undeformed";
else if(std == ATTR_STD_POSITION_UNDISPLACED)
return "undisplaced";
else if(std == ATTR_STD_MOTION_PRE)
return "motion_pre";
else if(std == ATTR_STD_MOTION_POST)
return "motion_post";
else if(std == ATTR_STD_PARTICLE)
return "particle";
else if(std == ATTR_STD_CURVE_TANGENT)
return "curve_tangent";
else if(std == ATTR_STD_CURVE_INTERCEPT)
return "curve_intercept";
return "";
}
/* Attribute Set */
AttributeSet::AttributeSet()
{
triangle_mesh = NULL;
curve_mesh = NULL;
}
AttributeSet::~AttributeSet()
{
}
Attribute *AttributeSet::add(ustring name, TypeDesc type, AttributeElement element)
{
Attribute *attr = find(name);
if(attr) {
/* return if same already exists */
if(attr->type == type && attr->element == element)
return attr;
/* overwrite attribute with same name but different type/element */
remove(name);
}
attributes.push_back(Attribute());
attr = &attributes.back();
attr->set(name, type, element);
/* this is weak .. */
if(triangle_mesh)
attr->reserve(triangle_mesh->verts.size(), triangle_mesh->triangles.size(), 0, 0);
if(curve_mesh)
attr->reserve(0, 0, curve_mesh->curves.size(), curve_mesh->curve_keys.size());
return attr;
}
Attribute *AttributeSet::find(ustring name) const
{
foreach(const Attribute& attr, attributes)
if(attr.name == name)
return (Attribute*)&attr;
return NULL;
}
void AttributeSet::remove(ustring name)
{
Attribute *attr = find(name);
if(attr) {
list<Attribute>::iterator it;
for(it = attributes.begin(); it != attributes.end(); it++) {
if(&*it == attr) {
attributes.erase(it);
return;
}
}
}
}
Attribute *AttributeSet::add(AttributeStandard std, ustring name)
{
Attribute *attr = NULL;
if(name == ustring())
name = Attribute::standard_name(std);
if(triangle_mesh) {
switch(std) {
case ATTR_STD_VERTEX_NORMAL:
attr = add(name, TypeDesc::TypeNormal, ATTR_ELEMENT_VERTEX);
break;
case ATTR_STD_FACE_NORMAL:
attr = add(name, TypeDesc::TypeNormal, ATTR_ELEMENT_FACE);
break;
case ATTR_STD_UV:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CORNER);
break;
case ATTR_STD_UV_TANGENT:
attr = add(name, TypeDesc::TypeVector, ATTR_ELEMENT_CORNER);
break;
case ATTR_STD_UV_TANGENT_SIGN:
attr = add(name, TypeDesc::TypeFloat, ATTR_ELEMENT_CORNER);
break;
case ATTR_STD_GENERATED:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_VERTEX);
break;
case ATTR_STD_POSITION_UNDEFORMED:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_VERTEX);
break;
case ATTR_STD_POSITION_UNDISPLACED:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_VERTEX);
break;
case ATTR_STD_MOTION_PRE:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_VERTEX);
break;
case ATTR_STD_MOTION_POST:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_VERTEX);
break;
default:
assert(0);
break;
}
}
else if(curve_mesh) {
switch(std) {
case ATTR_STD_UV:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE);
break;
case ATTR_STD_GENERATED:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE);
break;
case ATTR_STD_MOTION_PRE:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE_KEY);
break;
case ATTR_STD_MOTION_POST:
attr = add(name, TypeDesc::TypePoint, ATTR_ELEMENT_CURVE_KEY);
break;
case ATTR_STD_CURVE_TANGENT:
attr = add(name, TypeDesc::TypeVector, ATTR_ELEMENT_CURVE_KEY);
break;
case ATTR_STD_CURVE_INTERCEPT:
attr = add(name, TypeDesc::TypeFloat, ATTR_ELEMENT_CURVE_KEY);
break;
default:
assert(0);
break;
}
}
attr->std = std;
return attr;
}
Attribute *AttributeSet::find(AttributeStandard std) const
{
foreach(const Attribute& attr, attributes)
if(attr.std == std)
return (Attribute*)&attr;
return NULL;
}
void AttributeSet::remove(AttributeStandard std)
{
Attribute *attr = find(std);
if(attr) {
list<Attribute>::iterator it;
for(it = attributes.begin(); it != attributes.end(); it++) {
if(&*it == attr) {
attributes.erase(it);
return;
}
}
}
}
Attribute *AttributeSet::find(AttributeRequest& req)
{
if(req.std == ATTR_STD_NONE)
return find(req.name);
else
return find(req.std);
}
void AttributeSet::reserve()
{
foreach(Attribute& attr, attributes) {
if(triangle_mesh)
attr.reserve(triangle_mesh->verts.size(), triangle_mesh->triangles.size(), 0, 0);
if(curve_mesh)
attr.reserve(0, 0, curve_mesh->curves.size(), curve_mesh->curve_keys.size());
}
}
void AttributeSet::clear()
{
attributes.clear();
}
/* AttributeRequest */
AttributeRequest::AttributeRequest(ustring name_)
{
name = name_;
std = ATTR_STD_NONE;
triangle_type = TypeDesc::TypeFloat;
triangle_element = ATTR_ELEMENT_NONE;
triangle_offset = 0;
curve_type = TypeDesc::TypeFloat;
curve_element = ATTR_ELEMENT_NONE;
curve_offset = 0;
}
AttributeRequest::AttributeRequest(AttributeStandard std_)
{
name = ustring();
std = std_;
triangle_type = TypeDesc::TypeFloat;
triangle_element = ATTR_ELEMENT_NONE;
triangle_offset = 0;
curve_type = TypeDesc::TypeFloat;
curve_element = ATTR_ELEMENT_NONE;
curve_offset = 0;
}
/* AttributeRequestSet */
AttributeRequestSet::AttributeRequestSet()
{
}
AttributeRequestSet::~AttributeRequestSet()
{
}
bool AttributeRequestSet::modified(const AttributeRequestSet& other)
{
if(requests.size() != other.requests.size())
return true;
for(size_t i = 0; i < requests.size(); i++) {
bool found = false;
for(size_t j = 0; j < requests.size() && !found; j++)
if(requests[i].name == other.requests[j].name &&
requests[i].std == other.requests[j].std)
{
found = true;
}
if(!found) {
return true;
}
}
return false;
}
void AttributeRequestSet::add(ustring name)
{
foreach(AttributeRequest& req, requests)
if(req.name == name)
return;
requests.push_back(AttributeRequest(name));
}
void AttributeRequestSet::add(AttributeStandard std)
{
foreach(AttributeRequest& req, requests)
if(req.std == std)
return;
requests.push_back(AttributeRequest(std));
}
void AttributeRequestSet::add(AttributeRequestSet& reqs)
{
foreach(AttributeRequest& req, reqs.requests) {
if(req.std == ATTR_STD_NONE)
add(req.name);
else
add(req.std);
}
}
bool AttributeRequestSet::find(ustring name)
{
foreach(AttributeRequest& req, requests)
if(req.name == name)
return true;
return false;
}
bool AttributeRequestSet::find(AttributeStandard std)
{
foreach(AttributeRequest& req, requests)
if(req.std == std)
return true;
return false;
}
size_t AttributeRequestSet::size()
{
return requests.size();
}
void AttributeRequestSet::clear()
{
requests.clear();
}
CCL_NAMESPACE_END
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