forked from bartvdbraak/blender
348 lines
7.2 KiB
C++
348 lines
7.2 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "mesh.h"
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#include "attribute.h"
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#include "util_debug.h"
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#include "util_foreach.h"
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CCL_NAMESPACE_BEGIN
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/* Attribute */
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void Attribute::set(ustring name_, TypeDesc type_, Element element_)
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{
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name = name_;
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type = type_;
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element = element_;
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std = STD_NONE;
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/* string and matrix not supported! */
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assert(type == TypeDesc::TypeFloat || type == TypeDesc::TypeColor ||
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type == TypeDesc::TypePoint || type == TypeDesc::TypeVector ||
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type == TypeDesc::TypeNormal);
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}
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void Attribute::reserve(int numverts, int numtris)
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{
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buffer.resize(buffer_size(numverts, numtris), 0);
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}
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size_t Attribute::data_sizeof()
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{
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if(type == TypeDesc::TypeFloat)
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return sizeof(float);
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else
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return sizeof(float3);
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}
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size_t Attribute::element_size(int numverts, int numtris)
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{
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if(element == VERTEX)
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return numverts;
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else if(element == FACE)
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return numtris;
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else
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return numtris*3;
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}
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size_t Attribute::buffer_size(int numverts, int numtris)
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{
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return element_size(numverts, numtris)*data_sizeof();
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}
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bool Attribute::same_storage(TypeDesc a, TypeDesc b)
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{
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if(a == b)
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return true;
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if(a == TypeDesc::TypeColor || a == TypeDesc::TypePoint ||
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a == TypeDesc::TypeVector || a == TypeDesc::TypeNormal)
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if(b == TypeDesc::TypeColor || b == TypeDesc::TypePoint ||
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b == TypeDesc::TypeVector || b == TypeDesc::TypeNormal)
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return true;
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return false;
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}
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ustring Attribute::standard_name(Attribute::Standard std)
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{
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if(std == Attribute::STD_VERTEX_NORMAL)
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return ustring("N");
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else if(std == Attribute::STD_FACE_NORMAL)
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return ustring("Ng");
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else if(std == Attribute::STD_UV)
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return ustring("uv");
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else if(std == Attribute::STD_GENERATED)
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return ustring("generated");
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else if(std == Attribute::STD_POSITION_UNDEFORMED)
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return ustring("undeformed");
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else if(std == Attribute::STD_POSITION_UNDISPLACED)
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return ustring("undisplaced");
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return ustring();
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}
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/* Attribute Set */
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AttributeSet::AttributeSet()
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{
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mesh = NULL;
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}
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AttributeSet::~AttributeSet()
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{
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}
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Attribute *AttributeSet::add(ustring name, TypeDesc type, Attribute::Element element)
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{
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Attribute *attr = find(name);
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if(attr) {
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/* return if same already exists */
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if(attr->type == type && attr->element == element)
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return attr;
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/* overwrite attribute with same name but different type/element */
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remove(name);
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}
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attributes.push_back(Attribute());
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attr = &attributes.back();
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if(element == Attribute::VERTEX)
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attr->set(name, type, element);
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else if(element == Attribute::FACE)
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attr->set(name, type, element);
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else if(element == Attribute::CORNER)
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attr->set(name, type, element);
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if(mesh)
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attr->reserve(mesh->verts.size(), mesh->triangles.size());
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return attr;
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}
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Attribute *AttributeSet::find(ustring name)
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{
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foreach(Attribute& attr, attributes)
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if(attr.name == name)
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return &attr;
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return NULL;
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}
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void AttributeSet::remove(ustring name)
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{
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Attribute *attr = find(name);
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if(attr) {
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list<Attribute>::iterator it;
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for(it = attributes.begin(); it != attributes.end(); it++) {
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if(&*it == attr) {
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attributes.erase(it);
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return;
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}
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}
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}
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}
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Attribute *AttributeSet::add(Attribute::Standard std, ustring name)
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{
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Attribute *attr = NULL;
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if(name == ustring())
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name = Attribute::standard_name(std);
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if(std == Attribute::STD_VERTEX_NORMAL)
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attr = add(name, TypeDesc::TypeNormal, Attribute::VERTEX);
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else if(std == Attribute::STD_FACE_NORMAL)
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attr = add(name, TypeDesc::TypeNormal, Attribute::FACE);
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else if(std == Attribute::STD_UV)
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attr = add(name, TypeDesc::TypePoint, Attribute::CORNER);
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else if(std == Attribute::STD_GENERATED)
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attr = add(name, TypeDesc::TypePoint, Attribute::VERTEX);
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else if(std == Attribute::STD_POSITION_UNDEFORMED)
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attr = add(name, TypeDesc::TypePoint, Attribute::VERTEX);
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else if(std == Attribute::STD_POSITION_UNDISPLACED)
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attr = add(name, TypeDesc::TypePoint, Attribute::VERTEX);
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else
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assert(0);
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attr->std = std;
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return attr;
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}
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Attribute *AttributeSet::find(Attribute::Standard std)
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{
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foreach(Attribute& attr, attributes)
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if(attr.std == std)
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return &attr;
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return NULL;
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}
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void AttributeSet::remove(Attribute::Standard std)
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{
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Attribute *attr = find(std);
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if(attr) {
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list<Attribute>::iterator it;
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for(it = attributes.begin(); it != attributes.end(); it++) {
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if(&*it == attr) {
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attributes.erase(it);
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return;
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}
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}
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}
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}
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Attribute *AttributeSet::find(AttributeRequest& req)
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{
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if(req.std == Attribute::STD_NONE)
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return find(req.name);
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else
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return find(req.std);
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}
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void AttributeSet::reserve(int numverts, int numtris)
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{
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foreach(Attribute& attr, attributes)
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attr.reserve(numverts, numtris);
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}
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void AttributeSet::clear()
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{
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attributes.clear();
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}
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/* AttributeRequest */
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AttributeRequest::AttributeRequest(ustring name_)
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{
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name = name_;
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std = Attribute::STD_NONE;
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type = TypeDesc::TypeFloat;
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element = ATTR_ELEMENT_NONE;
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offset = 0;
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}
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AttributeRequest::AttributeRequest(Attribute::Standard std_)
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{
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name = ustring();
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std = std_;
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type = TypeDesc::TypeFloat;
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element = ATTR_ELEMENT_NONE;
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offset = 0;
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}
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/* AttributeRequestSet */
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AttributeRequestSet::AttributeRequestSet()
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{
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}
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AttributeRequestSet::~AttributeRequestSet()
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{
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}
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bool AttributeRequestSet::modified(const AttributeRequestSet& other)
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{
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if(requests.size() != other.requests.size())
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return true;
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for(size_t i = 0; i < requests.size(); i++) {
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bool found = false;
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for(size_t j = 0; j < requests.size() && !found; j++)
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if(requests[i].name == other.requests[j].name &&
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requests[i].std == other.requests[j].std)
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found = true;
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if(!found)
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return true;
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}
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return false;
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}
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void AttributeRequestSet::add(ustring name)
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{
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foreach(AttributeRequest& req, requests)
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if(req.name == name)
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return;
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requests.push_back(AttributeRequest(name));
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}
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void AttributeRequestSet::add(Attribute::Standard std)
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{
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foreach(AttributeRequest& req, requests)
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if(req.std == std)
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return;
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requests.push_back(AttributeRequest(std));
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}
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void AttributeRequestSet::add(AttributeRequestSet& reqs)
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{
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foreach(AttributeRequest& req, reqs.requests) {
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if(req.std == Attribute::STD_NONE)
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add(req.name);
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else
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add(req.std);
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}
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}
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bool AttributeRequestSet::find(ustring name)
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{
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foreach(AttributeRequest& req, requests)
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if(req.name == name)
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return true;
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return false;
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}
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bool AttributeRequestSet::find(Attribute::Standard std)
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{
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foreach(AttributeRequest& req, requests)
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if(req.std == std)
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return true;
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return false;
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}
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size_t AttributeRequestSet::size()
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{
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return requests.size();
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}
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void AttributeRequestSet::clear()
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{
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requests.clear();
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}
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CCL_NAMESPACE_END
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