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gtkradiant/radiant/patch.h
spog 6ee91d153e refactored plugin api; refactored callback library; added signals library 
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/trunk@44 8a3a26a2-13c4-0310-b231-cf6edde360e5
2006-04-09 17:15:13 +00:00

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/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
This file is part of GtkRadiant.
GtkRadiant 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.
GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#if !defined(INCLUDED_PATCH_H)
#define INCLUDED_PATCH_H
/// \file
/// \brief The patch primitive.
///
/// A 2-dimensional matrix of vertices that define a quadratic bezier surface.
/// The Boundary-Representation of this primitive is a triangle mesh.
/// The surface is recursively tesselated until the angle between each triangle
/// edge is smaller than a specified tolerance.
#include "nameable.h"
#include "ifilter.h"
#include "imap.h"
#include "cullable.h"
#include "renderable.h"
#include "editable.h"
#include "selectable.h"
#include "debugging/debugging.h"
#include <set>
#include "math/frustum.h"
#include "string/string.h"
#include "stream/stringstream.h"
#include "stream/textstream.h"
#include "xml/xmlelement.h"
#include "scenelib.h"
#include "transformlib.h"
#include "instancelib.h"
#include "selectionlib.h"
#include "traverselib.h"
#include "render.h"
#include "stringio.h"
#include "shaderlib.h"
#include "generic/callback.h"
#include "signal/signalfwd.h"
#include "texturelib.h"
#include "xml/ixml.h"
#include "dragplanes.h"
enum EPatchType
{
ePatchTypeQuake3,
ePatchTypeDoom3,
};
extern int g_PatchSubdivideThreshold;
#define MIN_PATCH_WIDTH 3
#define MIN_PATCH_HEIGHT 3
extern std::size_t MAX_PATCH_WIDTH;
extern std::size_t MAX_PATCH_HEIGHT;
#define MAX_PATCH_ROWCTRL (((MAX_PATCH_WIDTH-1)-1)/2)
#define MAX_PATCH_COLCTRL (((MAX_PATCH_HEIGHT-1)-1)/2)
enum EPatchCap
{
eCapBevel,
eCapEndCap,
eCapIBevel,
eCapIEndCap,
eCapCylinder,
};
enum EPatchPrefab
{
ePlane,
eBevel,
eEndCap,
eCylinder,
eDenseCylinder,
eVeryDenseCylinder,
eSqCylinder,
eCone,
eSphere,
};
enum EMatrixMajor
{
ROW, COL,
};
struct BezierCurve
{
Vector3 crd;
Vector3 left;
Vector3 right;
};
const std::size_t BEZIERCURVETREE_MAX_INDEX = 1 << ((sizeof(std::size_t) * 8) - 1);
struct BezierCurveTree
{
std::size_t index;
BezierCurveTree* left;
BezierCurveTree* right;
};
inline bool BezierCurveTree_isLeaf(const BezierCurveTree* node)
{
return node->left == 0 && node->right == 0;
}
void BezierCurveTree_Delete(BezierCurveTree *pCurve);
inline VertexPointer vertexpointer_arbitrarymeshvertex(const ArbitraryMeshVertex* array)
{
return VertexPointer(VertexPointer::pointer(&array->vertex), sizeof(ArbitraryMeshVertex));
}
class PatchControl
{
public:
Vector3 m_vertex;
Vector2 m_texcoord;
};
typedef PatchControl* PatchControlIter;
typedef const PatchControl* PatchControlConstIter;
inline void copy_ctrl(PatchControlIter ctrl, PatchControlConstIter begin, PatchControlConstIter end)
{
std::copy(begin, end, ctrl);
}
const Colour4b colour_corner(0, 255, 0, 255);
const Colour4b colour_inside(255, 0, 255, 255);
class Patch;
class PatchFilter
{
public:
virtual bool filter(const Patch& patch) const = 0;
};
bool patch_filtered(Patch& patch);
void add_patch_filter(PatchFilter& filter, int mask, bool invert = false);
void Patch_addTextureChangedCallback(const SignalHandler& handler);
void Patch_textureChanged();
inline void BezierCurveTreeArray_deleteAll(Array<BezierCurveTree*>& curveTrees)
{
for(Array<BezierCurveTree*>::iterator i = curveTrees.begin(); i != curveTrees.end(); ++i)
{
BezierCurveTree_Delete(*i);
}
}
inline void PatchControlArray_invert(Array<PatchControl>& ctrl, std::size_t width, std::size_t height)
{
Array<PatchControl> tmp(width);
PatchControlIter from = ctrl.data() + (width * (height - 1));
PatchControlIter to = ctrl.data();
for(std::size_t h = 0; h != ((height - 1) >> 1); ++h, to += width, from -= width)
{
copy_ctrl(tmp.data(), to, to + width);
copy_ctrl(to, from, from + width);
copy_ctrl(from, tmp.data(), tmp.data() + width);
}
}
class PatchTesselation
{
public:
Array<ArbitraryMeshVertex> m_vertices;
Array<RenderIndex> m_indices;
std::size_t m_numStrips;
std::size_t m_lenStrips;
Array<std::size_t> m_arrayWidth;
std::size_t m_nArrayWidth;
Array<std::size_t> m_arrayHeight;
std::size_t m_nArrayHeight;
Array<BezierCurveTree*> m_curveTreeU;
Array<BezierCurveTree*> m_curveTreeV;
};
class RenderablePatchWireframe : public OpenGLRenderable
{
PatchTesselation& m_tess;
public:
RenderablePatchWireframe(PatchTesselation& tess) : m_tess(tess)
{
}
void render(RenderStateFlags state) const
{
{
#if NV_DRIVER_BUG
glVertexPointer(3, GL_FLOAT, 0, 0);
glDrawArrays(GL_TRIANGLE_FAN, 0, 0);
#endif
std::size_t n = 0;
glVertexPointer(3, GL_FLOAT, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->vertex);
for(std::size_t i = 0; i <= m_tess.m_curveTreeV.size(); ++i)
{
glDrawArrays(GL_LINE_STRIP, GLint(n), GLsizei(m_tess.m_nArrayWidth));
if(i == m_tess.m_curveTreeV.size()) break;
if(!BezierCurveTree_isLeaf(m_tess.m_curveTreeV[i]))
glDrawArrays(GL_LINE_STRIP, GLint(m_tess.m_curveTreeV[i]->index), GLsizei(m_tess.m_nArrayWidth));
n += (m_tess.m_arrayHeight[i]*m_tess.m_nArrayWidth);
}
}
{
const ArbitraryMeshVertex* p = m_tess.m_vertices.data();
std::size_t n = m_tess.m_nArrayWidth * sizeof(ArbitraryMeshVertex);
for(std::size_t i = 0; i <= m_tess.m_curveTreeU.size(); ++i)
{
glVertexPointer(3, GL_FLOAT, GLsizei(n), &p->vertex);
glDrawArrays(GL_LINE_STRIP, 0, GLsizei(m_tess.m_nArrayHeight));
if(i == m_tess.m_curveTreeU.size()) break;
if(!BezierCurveTree_isLeaf(m_tess.m_curveTreeU[i]))
{
glVertexPointer(3, GL_FLOAT, GLsizei(n), &(m_tess.m_vertices.data() + (m_tess.m_curveTreeU[i]->index))->vertex);
glDrawArrays(GL_LINE_STRIP, 0, GLsizei(m_tess.m_nArrayHeight));
}
p += m_tess.m_arrayWidth[i];
}
}
}
};
class RenderablePatchFixedWireframe : public OpenGLRenderable
{
PatchTesselation& m_tess;
public:
RenderablePatchFixedWireframe(PatchTesselation& tess) : m_tess(tess)
{
}
void render(RenderStateFlags state) const
{
glVertexPointer(3, GL_FLOAT, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->vertex);
const RenderIndex* strip_indices = m_tess.m_indices.data();
for(std::size_t i = 0; i<m_tess.m_numStrips; i++, strip_indices += m_tess.m_lenStrips)
{
glDrawElements(GL_QUAD_STRIP, GLsizei(m_tess.m_lenStrips), RenderIndexTypeID, strip_indices);
}
}
};
class RenderablePatchSolid : public OpenGLRenderable
{
PatchTesselation& m_tess;
public:
RenderablePatchSolid(PatchTesselation& tess) : m_tess(tess)
{
}
void RenderNormals() const;
void render(RenderStateFlags state) const
{
#if 0
if((state & RENDER_FILL) == 0)
{
RenderablePatchWireframe(m_tess).render(state);
}
else
#endif
{
if((state & RENDER_BUMP) != 0)
{
if(GlobalShaderCache().useShaderLanguage())
{
glNormalPointer(GL_FLOAT, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->normal);
glVertexAttribPointerARB(c_attr_TexCoord0, 2, GL_FLOAT, 0, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->texcoord);
glVertexAttribPointerARB(c_attr_Tangent, 3, GL_FLOAT, 0, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->tangent);
glVertexAttribPointerARB(c_attr_Binormal, 3, GL_FLOAT, 0, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->bitangent);
}
else
{
glVertexAttribPointerARB(11, 3, GL_FLOAT, 0, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->normal);
glVertexAttribPointerARB(8, 2, GL_FLOAT, 0, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->texcoord);
glVertexAttribPointerARB(9, 3, GL_FLOAT, 0, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->tangent);
glVertexAttribPointerARB(10, 3, GL_FLOAT, 0, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->bitangent);
}
}
else
{
glNormalPointer(GL_FLOAT, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->normal);
glTexCoordPointer(2, GL_FLOAT, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->texcoord);
}
glVertexPointer(3, GL_FLOAT, sizeof(ArbitraryMeshVertex), &m_tess.m_vertices.data()->vertex);
const RenderIndex* strip_indices = m_tess.m_indices.data();
for(std::size_t i = 0; i<m_tess.m_numStrips; i++, strip_indices += m_tess.m_lenStrips)
{
glDrawElements(GL_QUAD_STRIP, GLsizei(m_tess.m_lenStrips), RenderIndexTypeID, strip_indices);
}
}
#if defined(_DEBUG)
RenderNormals();
#endif
}
};
// parametric surface defined by quadratic bezier control curves
class Patch :
public XMLImporter,
public XMLExporter,
public TransformNode,
public Bounded,
public Cullable,
public Snappable,
public Undoable,
public Filterable,
public Nameable
{
class xml_state_t
{
public:
enum EState
{
eDefault,
ePatch,
eMatrix,
eShader,
};
xml_state_t(EState state)
: m_state(state)
{}
EState state() const
{
return m_state;
}
const char* content() const
{
return m_content.c_str();
}
std::size_t write(const char* buffer, std::size_t length)
{
return m_content.write(buffer, length);
}
private:
EState m_state;
StringOutputStream m_content;
};
std::vector<xml_state_t> m_xml_state;
typedef Array<PatchControl> PatchControlArray;
class SavedState : public UndoMemento
{
public:
SavedState(
std::size_t width,
std::size_t height,
const PatchControlArray& ctrl,
const char* shader,
bool patchDef3,
std::size_t subdivisions_x,
std::size_t subdivisions_y
) :
m_width(width),
m_height(height),
m_shader(shader),
m_ctrl(ctrl),
m_patchDef3(patchDef3),
m_subdivisions_x(subdivisions_x),
m_subdivisions_y(subdivisions_y)
{
}
void release()
{
delete this;
}
std::size_t m_width, m_height;
CopiedString m_shader;
PatchControlArray m_ctrl;
bool m_patchDef3;
std::size_t m_subdivisions_x;
std::size_t m_subdivisions_y;
};
public:
class Observer
{
public:
virtual void allocate(std::size_t size) = 0;
};
private:
typedef UniqueSet<Observer*> Observers;
Observers m_observers;
scene::Node* m_node;
AABB m_aabb_local; // local bbox
CopiedString m_shader;
Shader* m_state;
std::size_t m_width;
std::size_t m_height;
public:
bool m_patchDef3;
std::size_t m_subdivisions_x;
std::size_t m_subdivisions_y;
private:
UndoObserver* m_undoable_observer;
MapFile* m_map;
// dynamically allocated array of control points, size is m_width*m_height
PatchControlArray m_ctrl;
PatchControlArray m_ctrlTransformed;
PatchTesselation m_tess;
RenderablePatchSolid m_render_solid;
RenderablePatchWireframe m_render_wireframe;
RenderablePatchFixedWireframe m_render_wireframe_fixed;
static Shader* m_state_ctrl;
static Shader* m_state_lattice;
VertexBuffer<PointVertex> m_ctrl_vertices;
RenderableVertexBuffer m_render_ctrl;
IndexBuffer m_lattice_indices;
RenderableIndexBuffer m_render_lattice;
bool m_bOverlay;
bool m_transformChanged;
Callback m_evaluateTransform;
Callback m_boundsChanged;
void construct()
{
m_bOverlay = false;
m_width = m_height = 0;
m_patchDef3 = false;
m_subdivisions_x = 0;
m_subdivisions_y = 0;
check_shader();
captureShader();
m_xml_state.push_back(xml_state_t::eDefault);
}
public:
Callback m_lightsChanged;
static int m_CycleCapIndex;// = 0;
static EPatchType m_type;
STRING_CONSTANT(Name, "Patch");
Patch(scene::Node& node, const Callback& evaluateTransform, const Callback& boundsChanged) :
m_node(&node),
m_shader(texdef_name_default()),
m_state(0),
m_undoable_observer(0),
m_map(0),
m_render_solid(m_tess),
m_render_wireframe(m_tess),
m_render_wireframe_fixed(m_tess),
m_render_ctrl(GL_POINTS, m_ctrl_vertices),
m_render_lattice(GL_LINES, m_lattice_indices, m_ctrl_vertices),
m_transformChanged(false),
m_evaluateTransform(evaluateTransform),
m_boundsChanged(boundsChanged)
{
construct();
}
Patch(const Patch& other, scene::Node& node, const Callback& evaluateTransform, const Callback& boundsChanged) :
m_node(&node),
m_shader(texdef_name_default()),
m_state(0),
m_undoable_observer(0),
m_map(0),
m_render_solid(m_tess),
m_render_wireframe(m_tess),
m_render_wireframe_fixed(m_tess),
m_render_ctrl(GL_POINTS, m_ctrl_vertices),
m_render_lattice(GL_LINES, m_lattice_indices, m_ctrl_vertices),
m_transformChanged(false),
m_evaluateTransform(evaluateTransform),
m_boundsChanged(boundsChanged)
{
construct();
m_patchDef3 = other.m_patchDef3;
m_subdivisions_x = other.m_subdivisions_x;
m_subdivisions_y = other.m_subdivisions_y;
setDims(other.m_width, other.m_height);
copy_ctrl(m_ctrl.data(), other.m_ctrl.data(), other.m_ctrl.data()+(m_width*m_height));
SetShader(other.m_shader.c_str());
controlPointsChanged();
}
Patch(const Patch& other) :
XMLImporter(other),
XMLExporter(other),
TransformNode(other),
Bounded(other),
Cullable(other),
Undoable(other),
Filterable(other),
Nameable(other),
m_state(0),
m_undoable_observer(0),
m_map(0),
m_render_solid(m_tess),
m_render_wireframe(m_tess),
m_render_wireframe_fixed(m_tess),
m_render_ctrl(GL_POINTS, m_ctrl_vertices),
m_render_lattice(GL_LINES, m_lattice_indices, m_ctrl_vertices),
m_transformChanged(false),
m_evaluateTransform(other.m_evaluateTransform),
m_boundsChanged(other.m_boundsChanged)
{
m_bOverlay = false;
m_patchDef3 = other.m_patchDef3;
m_subdivisions_x = other.m_subdivisions_x;
m_subdivisions_y = other.m_subdivisions_y;
setDims(other.m_width, other.m_height);
copy_ctrl(m_ctrl.data(), other.m_ctrl.data(), other.m_ctrl.data()+(m_width*m_height));
SetShader(other.m_shader.c_str());
controlPointsChanged();
}
~Patch()
{
BezierCurveTreeArray_deleteAll(m_tess.m_curveTreeU);
BezierCurveTreeArray_deleteAll(m_tess.m_curveTreeV);
releaseShader();
ASSERT_MESSAGE(m_observers.empty(), "Patch::~Patch: observers still attached");
}
InstanceCounter m_instanceCounter;
void instanceAttach(const scene::Path& path)
{
if(++m_instanceCounter.m_count == 1)
{
m_state->incrementUsed();
m_map = path_find_mapfile(path.begin(), path.end());
m_undoable_observer = GlobalUndoSystem().observer(this);
GlobalFilterSystem().registerFilterable(*this);
}
else
{
ASSERT_MESSAGE(path_find_mapfile(path.begin(), path.end()) == m_map, "node is instanced across more than one file");
}
}
void instanceDetach(const scene::Path& path)
{
if(--m_instanceCounter.m_count == 0)
{
m_map = 0;
m_undoable_observer = 0;
GlobalUndoSystem().release(this);
GlobalFilterSystem().unregisterFilterable(*this);
m_state->decrementUsed();
}
}
const char* name() const
{
return "patch";
}
void attach(const NameCallback& callback)
{
}
void detach(const NameCallback& callback)
{
}
void attach(Observer* observer)
{
observer->allocate(m_width * m_height);
m_observers.insert(observer);
}
void detach(Observer* observer)
{
m_observers.erase(observer);
}
void updateFiltered()
{
if(m_node != 0)
{
if(patch_filtered(*this))
{
m_node->enable(scene::Node::eFiltered);
}
else
{
m_node->disable(scene::Node::eFiltered);
}
}
}
void onAllocate(std::size_t size)
{
for(Observers::iterator i = m_observers.begin(); i != m_observers.end(); ++i)
{
(*i)->allocate(size);
}
}
const Matrix4& localToParent() const
{
return g_matrix4_identity;
}
const AABB& localAABB() const
{
return m_aabb_local;
}
VolumeIntersectionValue intersectVolume(const VolumeTest& test, const Matrix4& localToWorld) const
{
return test.TestAABB(m_aabb_local, localToWorld);
}
void render_solid(Renderer& renderer, const VolumeTest& volume, const Matrix4& localToWorld) const
{
renderer.SetState(m_state, Renderer::eFullMaterials);
renderer.addRenderable(m_render_solid, localToWorld);
}
void render_wireframe(Renderer& renderer, const VolumeTest& volume, const Matrix4& localToWorld) const
{
renderer.SetState(m_state, Renderer::eFullMaterials);
if(m_patchDef3)
{
renderer.addRenderable(m_render_wireframe_fixed, localToWorld);
}
else
{
renderer.addRenderable(m_render_wireframe, localToWorld);
}
}
void render_component(Renderer& renderer, const VolumeTest& volume, const Matrix4& localToWorld) const
{
renderer.SetState(m_state_lattice, Renderer::eWireframeOnly);
renderer.SetState(m_state_lattice, Renderer::eFullMaterials);
renderer.addRenderable(m_render_lattice, localToWorld);
renderer.SetState(m_state_ctrl, Renderer::eWireframeOnly);
renderer.SetState(m_state_ctrl, Renderer::eFullMaterials);
renderer.addRenderable(m_render_ctrl, localToWorld);
}
void testSelect(Selector& selector, SelectionTest& test)
{
SelectionIntersection best;
IndexPointer::index_type* pIndex = m_tess.m_indices.data();
for(std::size_t s=0; s<m_tess.m_numStrips; s++)
{
test.TestQuadStrip(vertexpointer_arbitrarymeshvertex(m_tess.m_vertices.data()), IndexPointer(pIndex, m_tess.m_lenStrips), best);
pIndex += m_tess.m_lenStrips;
}
if(best.valid())
{
selector.addIntersection(best);
}
}
void transform(const Matrix4& matrix)
{
for(PatchControlIter i = m_ctrlTransformed.data(); i != m_ctrlTransformed.data() + m_ctrlTransformed.size(); ++i)
{
matrix4_transform_point(matrix, (*i).m_vertex);
}
if(matrix4_handedness(matrix) == MATRIX4_LEFTHANDED)
{
PatchControlArray_invert(m_ctrlTransformed, m_width, m_height);
}
UpdateCachedData();
}
void transformChanged()
{
m_transformChanged = true;
m_lightsChanged();
SceneChangeNotify();
}
typedef MemberCaller<Patch, &Patch::transformChanged> TransformChangedCaller;
void evaluateTransform()
{
if(m_transformChanged)
{
m_transformChanged = false;
revertTransform();
m_evaluateTransform();
}
}
void revertTransform()
{
m_ctrlTransformed = m_ctrl;
}
void freezeTransform()
{
undoSave();
evaluateTransform();
ASSERT_MESSAGE(m_ctrlTransformed.size() == m_ctrl.size(), "Patch::freeze: size mismatch");
std::copy(m_ctrlTransformed.begin(), m_ctrlTransformed.end(), m_ctrl.begin());
}
void controlPointsChanged()
{
transformChanged();
evaluateTransform();
UpdateCachedData();
}
void snapto(float snap)
{
undoSave();
for(PatchControlIter i = m_ctrl.data(); i != m_ctrl.data() + m_ctrl.size(); ++i)
{
vector3_snap((*i).m_vertex, snap);
}
controlPointsChanged();
}
void RenderDebug(RenderStateFlags state) const;
void RenderNormals(RenderStateFlags state) const;
void pushElement(const XMLElement& element)
{
switch(m_xml_state.back().state())
{
case xml_state_t::eDefault:
ASSERT_MESSAGE(string_equal(element.name(), "patch"), "parse error");
m_xml_state.push_back(xml_state_t::ePatch);
break;
case xml_state_t::ePatch:
if(string_equal(element.name(), "matrix"))
{
setDims(atoi(element.attribute("width")), atoi(element.attribute("height")));
m_xml_state.push_back(xml_state_t::eMatrix);
}
else if(string_equal(element.name(), "shader"))
{
m_xml_state.push_back(xml_state_t::eShader);
}
break;
default:
ERROR_MESSAGE("parse error");
}
}
void popElement(const char* name)
{
switch(m_xml_state.back().state())
{
case xml_state_t::eDefault:
ERROR_MESSAGE("parse error");
break;
case xml_state_t::ePatch:
break;
case xml_state_t::eMatrix:
{
StringTokeniser content(m_xml_state.back().content());
for(PatchControlIter i = m_ctrl.data(), end = m_ctrl.data() + m_ctrl.size(); i != end; ++i)
{
(*i).m_vertex[0] = string_read_float(content.getToken());
(*i).m_vertex[1] = string_read_float(content.getToken());
(*i).m_vertex[2] = string_read_float(content.getToken());
(*i).m_texcoord[0] = string_read_float(content.getToken());
(*i).m_texcoord[1] = string_read_float(content.getToken());
}
controlPointsChanged();
}
break;
case xml_state_t::eShader:
{
SetShader(m_xml_state.back().content());
}
break;
default:
ERROR_MESSAGE("parse error");
}
ASSERT_MESSAGE(!m_xml_state.empty(), "popping empty stack");
m_xml_state.pop_back();
}
std::size_t write(const char* buffer, std::size_t length)
{
switch(m_xml_state.back().state())
{
case xml_state_t::eDefault:
break;
case xml_state_t::ePatch:
break;
case xml_state_t::eMatrix:
case xml_state_t::eShader:
return m_xml_state.back().write(buffer, length);
break;
default:
ERROR_MESSAGE("parse error");
}
return length;
}
void exportXML(XMLImporter& importer)
{
StaticElement patchElement("patch");
importer.pushElement(patchElement);
{
const StaticElement element("shader");
importer.pushElement(element);
importer.write(m_shader.c_str(), strlen(m_shader.c_str()));
importer.popElement(element.name());
}
{
char width[16], height[16];
sprintf(width, "%u", Unsigned(m_width));
sprintf(height, "%u", Unsigned(m_height));
StaticElement element("matrix");
element.insertAttribute("width", width);
element.insertAttribute("height", height);
importer.pushElement(element);
{
for(PatchControlIter i = m_ctrl.data(), end = m_ctrl.data() + m_ctrl.size(); i != end; ++i)
{
importer << (*i).m_vertex[0]
<< ' ' << (*i).m_vertex[1]
<< ' ' << (*i).m_vertex[2]
<< ' ' << (*i).m_texcoord[0]
<< ' ' << (*i).m_texcoord[1];
}
}
importer.popElement(element.name());
}
importer.popElement(patchElement.name());
}
void UpdateCachedData();
const char *GetShader() const
{
return m_shader.c_str();
}
void SetShader(const char* name)
{
ASSERT_NOTNULL(name);
if(shader_equal(m_shader.c_str(), name))
return;
undoSave();
if(m_instanceCounter.m_count != 0)
{
m_state->decrementUsed();
}
releaseShader();
m_shader = name;
captureShader();
if(m_instanceCounter.m_count != 0)
{
m_state->incrementUsed();
}
check_shader();
Patch_textureChanged();
}
int getShaderFlags() const
{
if(m_state != 0)
{
return m_state->getFlags();
}
return 0;
}
typedef PatchControl* iterator;
typedef const PatchControl* const_iterator;
iterator begin()
{
return m_ctrl.data();
}
const_iterator begin() const
{
return m_ctrl.data();
}
iterator end()
{
return m_ctrl.data() + m_ctrl.size();
}
const_iterator end() const
{
return m_ctrl.data() + m_ctrl.size();
}
PatchControlArray& getControlPointsTransformed()
{
return m_ctrlTransformed;
}
void setDims (std::size_t w, std::size_t h);
std::size_t getWidth() const
{
return m_width;
}
std::size_t getHeight() const
{
return m_height;
}
PatchControl& ctrlAt(std::size_t row, std::size_t col)
{
return m_ctrl[row*m_width+col];
}
const PatchControl& ctrlAt(std::size_t row, std::size_t col) const
{
return m_ctrl[row*m_width+col];
}
void ConstructPrefab(const AABB& aabb, EPatchPrefab eType, int axis, std::size_t width = 3, std::size_t height = 3);
void constructPlane(const AABB& aabb, int axis, std::size_t width, std::size_t height);
void InvertMatrix();
void TransposeMatrix();
void Redisperse(EMatrixMajor mt);
void InsertRemove(bool bInsert, bool bColumn, bool bFirst);
Patch* MakeCap(Patch* patch, EPatchCap eType, EMatrixMajor mt, bool bFirst);
void ConstructSeam(EPatchCap eType, Vector3* p, std::size_t width);
void FlipTexture(int nAxis);
void TranslateTexture(float s, float t);
void ScaleTexture(float s, float t);
void RotateTexture(float angle);
void SetTextureRepeat(float s, float t); // call with s=1 t=1 for FIT
void CapTexture();
void NaturalTexture();
void ProjectTexture(int nAxis);
void undoSave()
{
if(m_map != 0)
{
m_map->changed();
}
if(m_undoable_observer != 0)
{
m_undoable_observer->save(this);
}
}
UndoMemento* exportState() const
{
return new SavedState(m_width, m_height, m_ctrl, m_shader.c_str(), m_patchDef3, m_subdivisions_x, m_subdivisions_y);
}
void importState(const UndoMemento* state)
{
undoSave();
const SavedState& other = *(static_cast<const SavedState*>(state));
// begin duplicate of SavedState copy constructor, needs refactoring
// copy construct
{
m_width = other.m_width;
m_height = other.m_height;
SetShader(other.m_shader.c_str());
m_ctrl = other.m_ctrl;
onAllocate(m_ctrl.size());
m_patchDef3 = other.m_patchDef3;
m_subdivisions_x = other.m_subdivisions_x;
m_subdivisions_y = other.m_subdivisions_y;
}
// end duplicate code
Patch_textureChanged();
controlPointsChanged();
}
static void constructStatic(EPatchType type)
{
Patch::m_type = type;
Patch::m_state_ctrl = GlobalShaderCache().capture("$POINT");
Patch::m_state_lattice = GlobalShaderCache().capture("$LATTICE");
}
static void destroyStatic()
{
GlobalShaderCache().release("$LATTICE");
GlobalShaderCache().release("$POINT");
}
private:
void captureShader()
{
m_state = GlobalShaderCache().capture(m_shader.c_str());
}
void releaseShader()
{
GlobalShaderCache().release(m_shader.c_str());
}
void check_shader()
{
if(!shader_valid(GetShader()))
{
globalErrorStream() << "patch has invalid texture name: '" << GetShader() << "'\n";
}
}
void InsertPoints(EMatrixMajor mt, bool bFirst);
void RemovePoints(EMatrixMajor mt, bool bFirst);
void AccumulateBBox();
void TesselateSubMatrixFixed(ArbitraryMeshVertex* vertices, std::size_t strideX, std::size_t strideY, unsigned int nFlagsX, unsigned int nFlagsY, PatchControl* subMatrix[3][3]);
// uses binary trees representing bezier curves to recursively tesselate a bezier sub-patch
void TesselateSubMatrix( const BezierCurveTree *BX, const BezierCurveTree *BY,
std::size_t offStartX, std::size_t offStartY,
std::size_t offEndX, std::size_t offEndY,
std::size_t nFlagsX, std::size_t nFlagsY,
Vector3& left, Vector3& mid, Vector3& right,
Vector2& texLeft, Vector2& texMid, Vector2& texRight,
bool bTranspose );
// tesselates the entire surface
void BuildTesselationCurves(EMatrixMajor major);
void accumulateVertexTangentSpace(std::size_t index, Vector3 tangentX[6], Vector3 tangentY[6], Vector2 tangentS[6], Vector2 tangentT[6], std::size_t index0, std::size_t index1);
void BuildVertexArray();
};
inline bool Patch_importHeader(Patch& patch, Tokeniser& tokeniser)
{
tokeniser.nextLine();
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, "{"));
return true;
}
inline bool Patch_importShader(Patch& patch, Tokeniser& tokeniser)
{
// parse shader name
tokeniser.nextLine();
const char* texture = tokeniser.getToken();
if(texture == 0)
{
Tokeniser_unexpectedError(tokeniser, texture, "#texture-name");
return false;
}
if(string_equal(texture, "NULL"))
{
patch.SetShader(texdef_name_default());
}
else
{
StringOutputStream shader(string_length(GlobalTexturePrefix_get()) + string_length(texture));
shader << GlobalTexturePrefix_get() << texture;
patch.SetShader(shader.c_str());
}
return true;
}
inline bool PatchDoom3_importShader(Patch& patch, Tokeniser& tokeniser)
{
// parse shader name
tokeniser.nextLine();
const char *shader = tokeniser.getToken();
if(shader == 0)
{
Tokeniser_unexpectedError(tokeniser, shader, "#shader-name");
return false;
}
if(string_equal(shader, "_emptyname"))
{
shader = texdef_name_default();
}
patch.SetShader(shader);
return true;
}
inline bool Patch_importParams(Patch& patch, Tokeniser& tokeniser)
{
tokeniser.nextLine();
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, "("));
// parse matrix dimensions
{
std::size_t c, r;
RETURN_FALSE_IF_FAIL(Tokeniser_getSize(tokeniser, c));
RETURN_FALSE_IF_FAIL(Tokeniser_getSize(tokeniser, r));
patch.setDims(c, r);
}
if(patch.m_patchDef3)
{
RETURN_FALSE_IF_FAIL(Tokeniser_getSize(tokeniser, patch.m_subdivisions_x));
RETURN_FALSE_IF_FAIL(Tokeniser_getSize(tokeniser, patch.m_subdivisions_y));
}
// ignore contents/flags/value
int tmp;
RETURN_FALSE_IF_FAIL(Tokeniser_getInteger(tokeniser, tmp));
RETURN_FALSE_IF_FAIL(Tokeniser_getInteger(tokeniser, tmp));
RETURN_FALSE_IF_FAIL(Tokeniser_getInteger(tokeniser, tmp));
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, ")"));
return true;
}
inline bool Patch_importMatrix(Patch& patch, Tokeniser& tokeniser)
{
// parse matrix
tokeniser.nextLine();
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, "("));
{
for(std::size_t c=0; c<patch.getWidth(); c++)
{
tokeniser.nextLine();
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, "("));
for(std::size_t r=0; r<patch.getHeight(); r++)
{
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, "("));
RETURN_FALSE_IF_FAIL(Tokeniser_getFloat(tokeniser, patch.ctrlAt(r,c).m_vertex[0]));
RETURN_FALSE_IF_FAIL(Tokeniser_getFloat(tokeniser, patch.ctrlAt(r,c).m_vertex[1]));
RETURN_FALSE_IF_FAIL(Tokeniser_getFloat(tokeniser, patch.ctrlAt(r,c).m_vertex[2]));
RETURN_FALSE_IF_FAIL(Tokeniser_getFloat(tokeniser, patch.ctrlAt(r,c).m_texcoord[0]));
RETURN_FALSE_IF_FAIL(Tokeniser_getFloat(tokeniser, patch.ctrlAt(r,c).m_texcoord[1]));
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, ")"));
}
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, ")"));
}
}
tokeniser.nextLine();
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, ")"));
return true;
}
inline bool Patch_importFooter(Patch& patch, Tokeniser& tokeniser)
{
patch.controlPointsChanged();
tokeniser.nextLine();
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, "}"));
tokeniser.nextLine();
RETURN_FALSE_IF_FAIL(Tokeniser_parseToken(tokeniser, "}"));
return true;
}
class PatchTokenImporter : public MapImporter
{
Patch& m_patch;
public:
PatchTokenImporter(Patch& patch) : m_patch(patch)
{
}
bool importTokens(Tokeniser& tokeniser)
{
RETURN_FALSE_IF_FAIL(Patch_importHeader(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(Patch_importShader(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(Patch_importParams(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(Patch_importMatrix(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(Patch_importFooter(m_patch, tokeniser));
return true;
}
};
class PatchDoom3TokenImporter : public MapImporter
{
Patch& m_patch;
public:
PatchDoom3TokenImporter(Patch& patch) : m_patch(patch)
{
}
bool importTokens(Tokeniser& tokeniser)
{
RETURN_FALSE_IF_FAIL(Patch_importHeader(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(PatchDoom3_importShader(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(Patch_importParams(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(Patch_importMatrix(m_patch, tokeniser));
RETURN_FALSE_IF_FAIL(Patch_importFooter(m_patch, tokeniser));
return true;
}
};
inline void Patch_exportHeader(const Patch& patch, TokenWriter& writer)
{
writer.writeToken("{");
writer.nextLine();
writer.writeToken(patch.m_patchDef3 ? "patchDef3" : "patchDef2");
writer.nextLine();
writer.writeToken("{");
writer.nextLine();
}
inline void Patch_exportShader(const Patch& patch, TokenWriter& writer)
{
// write shader name
if(*(shader_get_textureName(patch.GetShader())) == '\0')
{
writer.writeToken("NULL");
}
else
{
writer.writeToken(shader_get_textureName(patch.GetShader()));
}
writer.nextLine();
}
inline void PatchDoom3_exportShader(const Patch& patch, TokenWriter& writer)
{
// write shader name
if(*(shader_get_textureName(patch.GetShader())) == '\0')
{
writer.writeString("_emptyname");
}
else
{
writer.writeString(patch.GetShader());
}
writer.nextLine();
}
inline void Patch_exportParams(const Patch& patch, TokenWriter& writer)
{
// write matrix dimensions
writer.writeToken("(");
writer.writeUnsigned(patch.getWidth());
writer.writeUnsigned(patch.getHeight());
if(patch.m_patchDef3)
{
writer.writeUnsigned(patch.m_subdivisions_x);
writer.writeUnsigned(patch.m_subdivisions_y);
}
writer.writeInteger(0);
writer.writeInteger(0);
writer.writeInteger(0);
writer.writeToken(")");
writer.nextLine();
}
inline void Patch_exportMatrix(const Patch& patch, TokenWriter& writer)
{
// write matrix
writer.writeToken("(");
writer.nextLine();
for(std::size_t c=0; c<patch.getWidth(); c++)
{
writer.writeToken("(");
for(std::size_t r=0; r<patch.getHeight(); r++)
{
writer.writeToken("(");
writer.writeFloat(patch.ctrlAt(r,c).m_vertex[0]);
writer.writeFloat(patch.ctrlAt(r,c).m_vertex[1]);
writer.writeFloat(patch.ctrlAt(r,c).m_vertex[2]);
writer.writeFloat(patch.ctrlAt(r,c).m_texcoord[0]);
writer.writeFloat(patch.ctrlAt(r,c).m_texcoord[1]);
writer.writeToken(")");
}
writer.writeToken(")");
writer.nextLine();
}
writer.writeToken(")");
writer.nextLine();
}
inline void Patch_exportFooter(const Patch& patch, TokenWriter& writer)
{
writer.writeToken("}");
writer.nextLine();
writer.writeToken("}");
writer.nextLine();
}
class PatchTokenExporter : public MapExporter
{
const Patch& m_patch;
public:
PatchTokenExporter(Patch& patch) : m_patch(patch)
{
}
void exportTokens(TokenWriter& writer) const
{
Patch_exportHeader(m_patch, writer);
Patch_exportShader(m_patch, writer);
Patch_exportParams(m_patch, writer);
Patch_exportMatrix(m_patch, writer);
Patch_exportFooter(m_patch, writer);
}
};
class PatchDoom3TokenExporter : public MapExporter
{
const Patch& m_patch;
public:
PatchDoom3TokenExporter(Patch& patch) : m_patch(patch)
{
}
void exportTokens(TokenWriter& writer) const
{
Patch_exportHeader(m_patch, writer);
PatchDoom3_exportShader(m_patch, writer);
Patch_exportParams(m_patch, writer);
Patch_exportMatrix(m_patch, writer);
Patch_exportFooter(m_patch, writer);
}
};
class PatchControlInstance
{
public:
PatchControl* m_ctrl;
ObservedSelectable m_selectable;
PatchControlInstance(PatchControl* ctrl, const SelectionChangeCallback& observer)
: m_ctrl(ctrl), m_selectable(observer)
{
}
void testSelect(Selector& selector, SelectionTest& test)
{
SelectionIntersection best;
test.TestPoint(m_ctrl->m_vertex, best);
if(best.valid())
{
Selector_add(selector, m_selectable, best);
}
}
void snapto(float snap)
{
vector3_snap(m_ctrl->m_vertex, snap);
}
};
class PatchInstance :
public Patch::Observer,
public scene::Instance,
public Selectable,
public Renderable,
public SelectionTestable,
public ComponentSelectionTestable,
public ComponentEditable,
public ComponentSnappable,
public PlaneSelectable,
public LightCullable
{
class TypeCasts
{
InstanceTypeCastTable m_casts;
public:
TypeCasts()
{
InstanceStaticCast<PatchInstance, Selectable>::install(m_casts);
InstanceContainedCast<PatchInstance, Bounded>::install(m_casts);
InstanceContainedCast<PatchInstance, Cullable>::install(m_casts);
InstanceStaticCast<PatchInstance, Renderable>::install(m_casts);
InstanceStaticCast<PatchInstance, SelectionTestable>::install(m_casts);
InstanceStaticCast<PatchInstance, ComponentSelectionTestable>::install(m_casts);
InstanceStaticCast<PatchInstance, ComponentEditable>::install(m_casts);
InstanceStaticCast<PatchInstance, ComponentSnappable>::install(m_casts);
InstanceStaticCast<PatchInstance, PlaneSelectable>::install(m_casts);
InstanceIdentityCast<PatchInstance>::install(m_casts);
InstanceContainedCast<PatchInstance, Transformable>::install(m_casts);
}
InstanceTypeCastTable& get()
{
return m_casts;
}
};
Patch& m_patch;
typedef std::vector<PatchControlInstance> PatchControlInstances;
PatchControlInstances m_ctrl_instances;
ObservedSelectable m_selectable;
DragPlanes m_dragPlanes;
mutable RenderablePointVector m_render_selected;
mutable AABB m_aabb_component;
static Shader* m_state_selpoint;
const LightList* m_lightList;
TransformModifier m_transform;
public:
typedef LazyStatic<TypeCasts> StaticTypeCasts;
void lightsChanged()
{
m_lightList->lightsChanged();
}
typedef MemberCaller<PatchInstance, &PatchInstance::lightsChanged> LightsChangedCaller;
STRING_CONSTANT(Name, "PatchInstance");
PatchInstance(const scene::Path& path, scene::Instance* parent, Patch& patch) :
Instance(path, parent, this, StaticTypeCasts::instance().get()),
m_patch(patch),
m_selectable(SelectedChangedCaller(*this)),
m_dragPlanes(SelectedChangedComponentCaller(*this)),
m_render_selected(GL_POINTS),
m_transform(Patch::TransformChangedCaller(m_patch), ApplyTransformCaller(*this))
{
m_patch.instanceAttach(Instance::path());
m_patch.attach(this);
m_lightList = &GlobalShaderCache().attach(*this);
m_patch.m_lightsChanged = LightsChangedCaller(*this);
Instance::setTransformChangedCallback(LightsChangedCaller(*this));
}
~PatchInstance()
{
Instance::setTransformChangedCallback(Callback());
m_patch.m_lightsChanged = Callback();
GlobalShaderCache().detach(*this);
m_patch.detach(this);
m_patch.instanceDetach(Instance::path());
}
void selectedChanged(const Selectable& selectable)
{
GlobalSelectionSystem().getObserver(SelectionSystem::ePrimitive)(selectable);
GlobalSelectionSystem().onSelectedChanged(*this, selectable);
Instance::selectedChanged();
}
typedef MemberCaller1<PatchInstance, const Selectable&, &PatchInstance::selectedChanged> SelectedChangedCaller;
void selectedChangedComponent(const Selectable& selectable)
{
GlobalSelectionSystem().getObserver(SelectionSystem::eComponent)(selectable);
GlobalSelectionSystem().onComponentSelection(*this, selectable);
}
typedef MemberCaller1<PatchInstance, const Selectable&, &PatchInstance::selectedChangedComponent> SelectedChangedComponentCaller;
Patch& getPatch()
{
return m_patch;
}
Bounded& get(NullType<Bounded>)
{
return m_patch;
}
Cullable& get(NullType<Cullable>)
{
return m_patch;
}
Transformable& get(NullType<Transformable>)
{
return m_transform;
}
static void constructStatic()
{
m_state_selpoint = GlobalShaderCache().capture("$SELPOINT");
}
static void destroyStatic()
{
GlobalShaderCache().release("$SELPOINT");
}
void allocate(std::size_t size)
{
m_ctrl_instances.clear();
m_ctrl_instances.reserve(size);
for(Patch::iterator i = m_patch.begin(); i != m_patch.end(); ++i)
{
m_ctrl_instances.push_back(PatchControlInstance(&(*i), SelectedChangedComponentCaller(*this)));
}
}
void setSelected(bool select)
{
m_selectable.setSelected(select);
}
bool isSelected() const
{
return m_selectable.isSelected();
}
void update_selected() const
{
m_render_selected.clear();
Patch::iterator ctrl = m_patch.getControlPointsTransformed().begin();
for(PatchControlInstances::const_iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i, ++ctrl)
{
if((*i).m_selectable.isSelected())
{
const Colour4b colour_selected(0, 0, 255, 255);
m_render_selected.push_back(PointVertex(reinterpret_cast<Vertex3f&>((*ctrl).m_vertex), colour_selected));
}
}
}
#if 0
void render(Renderer& renderer, const VolumeTest& volume) const
{
if(GlobalSelectionSystem().Mode() == SelectionSystem::eComponent
&& m_selectable.isSelected())
{
renderer.Highlight(Renderer::eFace, false);
m_patch.render(renderer, volume, localToWorld());
if(GlobalSelectionSystem().ComponentMode() == SelectionSystem::eVertex)
{
renderer.Highlight(Renderer::ePrimitive, false);
m_patch.render_component(renderer, volume, localToWorld());
renderComponentsSelected(renderer, volume);
}
}
else
m_patch.render(renderer, volume, localToWorld());
}
#endif
void renderSolid(Renderer& renderer, const VolumeTest& volume) const
{
m_patch.evaluateTransform();
renderer.setLights(*m_lightList);
m_patch.render_solid(renderer, volume, localToWorld());
renderComponentsSelected(renderer, volume);
}
void renderWireframe(Renderer& renderer, const VolumeTest& volume) const
{
m_patch.evaluateTransform();
m_patch.render_wireframe(renderer, volume, localToWorld());
renderComponentsSelected(renderer, volume);
}
void renderComponentsSelected(Renderer& renderer, const VolumeTest& volume) const
{
m_patch.evaluateTransform();
update_selected();
if(!m_render_selected.empty())
{
renderer.Highlight(Renderer::ePrimitive, false);
renderer.SetState(m_state_selpoint, Renderer::eWireframeOnly);
renderer.SetState(m_state_selpoint, Renderer::eFullMaterials);
renderer.addRenderable(m_render_selected, localToWorld());
}
}
void renderComponents(Renderer& renderer, const VolumeTest& volume) const
{
m_patch.evaluateTransform();
if(GlobalSelectionSystem().ComponentMode() == SelectionSystem::eVertex)
{
m_patch.render_component(renderer, volume, localToWorld());
}
}
void testSelect(Selector& selector, SelectionTest& test)
{
test.BeginMesh(localToWorld(), true);
m_patch.testSelect(selector, test);
}
void selectCtrl(bool select)
{
for(PatchControlInstances::iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i)
{
(*i).m_selectable.setSelected(select);
}
}
bool isSelectedComponents() const
{
for(PatchControlInstances::const_iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i)
{
if((*i).m_selectable.isSelected())
{
return true;
}
}
return false;
}
void setSelectedComponents(bool select, SelectionSystem::EComponentMode mode)
{
if(mode == SelectionSystem::eVertex)
{
selectCtrl(select);
}
else if(mode == SelectionSystem::eFace)
{
m_dragPlanes.setSelected(select);
}
}
const AABB& getSelectedComponentsBounds() const
{
m_aabb_component = AABB();
for(PatchControlInstances::const_iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i)
{
if((*i).m_selectable.isSelected())
{
aabb_extend_by_point_safe(m_aabb_component, (*i).m_ctrl->m_vertex);
}
}
return m_aabb_component;
}
void testSelectComponents(Selector& selector, SelectionTest& test, SelectionSystem::EComponentMode mode)
{
test.BeginMesh(localToWorld());
switch(mode)
{
case SelectionSystem::eVertex:
{
for(PatchControlInstances::iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i)
{
(*i).testSelect(selector, test);
}
}
break;
default:
break;
}
}
bool selectedVertices()
{
for(PatchControlInstances::iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i)
{
if((*i).m_selectable.isSelected())
{
return true;
}
}
return false;
}
void transformComponents(const Matrix4& matrix)
{
if(selectedVertices())
{
PatchControlIter ctrl = m_patch.getControlPointsTransformed().begin();
for(PatchControlInstances::iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i, ++ctrl)
{
if((*i).m_selectable.isSelected())
{
matrix4_transform_point(matrix, (*ctrl).m_vertex);
}
}
m_patch.UpdateCachedData();
}
if(m_dragPlanes.isSelected()) // this should only be true when the transform is a pure translation.
{
m_patch.transform(m_dragPlanes.evaluateTransform(matrix.t()));
}
}
void selectPlanes(Selector& selector, SelectionTest& test, const PlaneCallback& selectedPlaneCallback)
{
test.BeginMesh(localToWorld());
m_dragPlanes.selectPlanes(m_patch.localAABB(), selector, test, selectedPlaneCallback);
}
void selectReversedPlanes(Selector& selector, const SelectedPlanes& selectedPlanes)
{
m_dragPlanes.selectReversedPlanes(m_patch.localAABB(), selector, selectedPlanes);
}
void snapComponents(float snap)
{
if(selectedVertices())
{
m_patch.undoSave();
for(PatchControlInstances::iterator i = m_ctrl_instances.begin(); i != m_ctrl_instances.end(); ++i)
{
if((*i).m_selectable.isSelected())
{
(*i).snapto(snap);
}
}
m_patch.controlPointsChanged();
}
}
void evaluateTransform()
{
Matrix4 matrix(m_transform.calculateTransform());
if(m_transform.getType() == TRANSFORM_PRIMITIVE)
{
m_patch.transform(matrix);
}
else
{
transformComponents(matrix);
}
}
void applyTransform()
{
m_patch.revertTransform();
evaluateTransform();
m_patch.freezeTransform();
}
typedef MemberCaller<PatchInstance, &PatchInstance::applyTransform> ApplyTransformCaller;
bool testLight(const RendererLight& light) const
{
return light.testAABB(worldAABB());
}
};
template<typename TokenImporter, typename TokenExporter>
class PatchNode :
public scene::Node::Symbiot,
public scene::Instantiable,
public scene::Cloneable
{
typedef PatchNode<TokenImporter, TokenExporter> Self;
class TypeCasts
{
InstanceTypeCastTable m_casts;
public:
TypeCasts()
{
NodeStaticCast<PatchNode, scene::Instantiable>::install(m_casts);
NodeStaticCast<PatchNode, scene::Cloneable>::install(m_casts);
NodeContainedCast<PatchNode, Snappable>::install(m_casts);
NodeContainedCast<PatchNode, TransformNode>::install(m_casts);
NodeContainedCast<PatchNode, Patch>::install(m_casts);
NodeContainedCast<PatchNode, XMLImporter>::install(m_casts);
NodeContainedCast<PatchNode, XMLExporter>::install(m_casts);
NodeContainedCast<PatchNode, MapImporter>::install(m_casts);
NodeContainedCast<PatchNode, MapExporter>::install(m_casts);
NodeContainedCast<PatchNode, Nameable>::install(m_casts);
}
InstanceTypeCastTable& get()
{
return m_casts;
}
};
scene::Node m_node;
InstanceSet m_instances;
Patch m_patch;
TokenImporter m_importMap;
TokenExporter m_exportMap;
public:
typedef LazyStatic<TypeCasts> StaticTypeCasts;
Snappable& get(NullType<Snappable>)
{
return m_patch;
}
TransformNode& get(NullType<TransformNode>)
{
return m_patch;
}
Patch& get(NullType<Patch>)
{
return m_patch;
}
XMLImporter& get(NullType<XMLImporter>)
{
return m_patch;
}
XMLExporter& get(NullType<XMLExporter>)
{
return m_patch;
}
MapImporter& get(NullType<MapImporter>)
{
return m_importMap;
}
MapExporter& get(NullType<MapExporter>)
{
return m_exportMap;
}
Nameable& get(NullType<Nameable>)
{
return m_patch;
}
PatchNode(bool patchDef3 = false) :
m_node(this, this, StaticTypeCasts::instance().get()),
m_patch(m_node, InstanceSetEvaluateTransform<PatchInstance>::Caller(m_instances), InstanceSet::BoundsChangedCaller(m_instances)),
m_importMap(m_patch),
m_exportMap(m_patch)
{
m_patch.m_patchDef3 = patchDef3;
}
PatchNode(const PatchNode& other) :
scene::Node::Symbiot(other),
scene::Instantiable(other),
scene::Cloneable(other),
m_node(this, this, StaticTypeCasts::instance().get()),
m_patch(other.m_patch, m_node, InstanceSetEvaluateTransform<PatchInstance>::Caller(m_instances), InstanceSet::BoundsChangedCaller(m_instances)),
m_importMap(m_patch),
m_exportMap(m_patch)
{
}
void release()
{
delete this;
}
scene::Node& node()
{
return m_node;
}
Patch& get()
{
return m_patch;
}
const Patch& get() const
{
return m_patch;
}
scene::Node& clone() const
{
return (new PatchNode(*this))->node();
}
scene::Instance* create(const scene::Path& path, scene::Instance* parent)
{
return new PatchInstance(path, parent, m_patch);
}
void forEachInstance(const scene::Instantiable::Visitor& visitor)
{
m_instances.forEachInstance(visitor);
}
void insert(scene::Instantiable::Observer* observer, const scene::Path& path, scene::Instance* instance)
{
m_instances.insert(observer, path, instance);
}
scene::Instance* erase(scene::Instantiable::Observer* observer, const scene::Path& path)
{
return m_instances.erase(observer, path);
}
};
typedef PatchNode<PatchTokenImporter, PatchTokenExporter> PatchNodeQuake3;
typedef PatchNode<PatchDoom3TokenImporter, PatchDoom3TokenExporter> PatchNodeDoom3;
inline Patch* Node_getPatch(scene::Node& node)
{
return NodeTypeCast<Patch>::cast(node);
}
inline PatchInstance* Instance_getPatch(scene::Instance& instance)
{
return InstanceTypeCast<PatchInstance>::cast(instance);
}
template<typename Functor>
class PatchSelectedVisitor : public SelectionSystem::Visitor
{
const Functor& m_functor;
public:
PatchSelectedVisitor(const Functor& functor) : m_functor(functor)
{
}
void visit(scene::Instance& instance) const
{
PatchInstance* patch = Instance_getPatch(instance);
if(patch != 0)
{
m_functor(*patch);
}
}
};
template<typename Functor>
inline void Scene_forEachSelectedPatch(const Functor& functor)
{
GlobalSelectionSystem().foreachSelected(PatchSelectedVisitor<Functor>(functor));
}
template<typename Functor>
class PatchVisibleSelectedVisitor : public SelectionSystem::Visitor
{
const Functor& m_functor;
public:
PatchVisibleSelectedVisitor(const Functor& functor) : m_functor(functor)
{
}
void visit(scene::Instance& instance) const
{
PatchInstance* patch = Instance_getPatch(instance);
if(patch != 0
&& instance.path().top().get().visible())
{
m_functor(*patch);
}
}
};
template<typename Functor>
inline void Scene_forEachVisibleSelectedPatchInstance(const Functor& functor)
{
GlobalSelectionSystem().foreachSelected(PatchVisibleSelectedVisitor<Functor>(functor));
}
template<typename Functor>
class PatchForEachWalker : public scene::Graph::Walker
{
const Functor& m_functor;
public:
PatchForEachWalker(const Functor& functor) : m_functor(functor)
{
}
bool pre(const scene::Path& path, scene::Instance& instance) const
{
if(path.top().get().visible())
{
Patch* patch = Node_getPatch(path.top());
if(patch != 0)
{
m_functor(*patch);
}
}
return true;
}
};
template<typename Functor>
inline void Scene_forEachVisiblePatch(const Functor& functor)
{
GlobalSceneGraph().traverse(PatchForEachWalker<Functor>(functor));
}
template<typename Functor>
class PatchForEachSelectedWalker : public scene::Graph::Walker
{
const Functor& m_functor;
public:
PatchForEachSelectedWalker(const Functor& functor) : m_functor(functor)
{
}
bool pre(const scene::Path& path, scene::Instance& instance) const
{
if(path.top().get().visible())
{
Patch* patch = Node_getPatch(path.top());
if(patch != 0
&& Instance_getSelectable(instance)->isSelected())
{
m_functor(*patch);
}
}
return true;
}
};
template<typename Functor>
inline void Scene_forEachVisibleSelectedPatch(const Functor& functor)
{
GlobalSceneGraph().traverse(PatchForEachSelectedWalker<Functor>(functor));
}
template<typename Functor>
class PatchForEachInstanceWalker : public scene::Graph::Walker
{
const Functor& m_functor;
public:
PatchForEachInstanceWalker(const Functor& functor) : m_functor(functor)
{
}
bool pre(const scene::Path& path, scene::Instance& instance) const
{
if(path.top().get().visible())
{
PatchInstance* patch = Instance_getPatch(instance);
if(patch != 0)
{
m_functor(*patch);
}
}
return true;
}
};
template<typename Functor>
inline void Scene_forEachVisiblePatchInstance(const Functor& functor)
{
GlobalSceneGraph().traverse(PatchForEachInstanceWalker<Functor>(functor));
}
#endif
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