tools::sg::tex_rect Class Reference

Inheritance diagram for tools::sg::tex_rect:

Collaboration diagram for tools::sg::tex_rect:

Public Member Functions
virtual void *	cast (const std::string &a_class) const
virtual const desc_fields &	node_desc_fields () const
virtual void	render (render_action &a_action)
virtual void	pick (pick_action &a_action)
virtual void	bbox (bbox_action &a_action)
virtual bool	intersect_value (std::ostream &, intersect_type, const line< vec3f > &a_line, std::string &a_s) const
	tex_rect ()
virtual	~tex_rect ()
	tex_rect (const tex_rect &a_from)
tex_rect &	operator= (const tex_rect &a_from)
void	rendered_size (std::ostream &a_out, unsigned int &a_w, unsigned int &a_h)
Public Member Functions inherited from tools::sg::node
virtual const std::string &	s_cls () const =0
virtual node *	copy () const =0
virtual unsigned int	cls_version () const
virtual void	search (search_action &a_action)
virtual void	get_matrix (get_matrix_action &a_action)
virtual bool	write (write_action &a_action)
virtual void	event (event_action &)
virtual bool	read (read_action &a_action)
virtual void	is_visible (visible_action &)
virtual void	protocol_one_fields (std::vector< field * > &a_fields) const
virtual bool	draw_in_frame_buffer () const
virtual bool	touched ()
virtual void	reset_touched ()
	node ()
virtual	~node ()
void	touch ()
field &	field_from_desc (const field_desc &a_desc) const
void	dump_field_descs (std::ostream &a_out) const
field *	find_field_by_name (const std::string &a_name) const
Public Member Functions inherited from tools::sg::gstos
size_t	num_gstos () const
Public Member Functions inherited from tools::sg::base_tex
	base_tex ()
virtual	~base_tex ()
	base_tex (const base_tex &a_from)
base_tex &	operator= (const base_tex &a_from)

Public Attributes
sf< bool >	show_border
sf< float >	height
Public Attributes inherited from tools::sg::base_tex
sf_img< byte >	img
sf_vec< colorf, float >	back_color
sf< bool >	expand
sf< unsigned int >	limit
sf< bool >	nearest

Protected Types
typedef float	f12[12]
typedef float	f18[18]

Protected Member Functions
void	update_sg (std::ostream &a_out)
void	_front (f12 &front, f12 &nms, float a_epsil=0.0f)
void	_back (f12 &back)
void	_tris (f18 &tris, f18 &nms)
Protected Member Functions inherited from tools::sg::node
	node (const node &)
node &	operator= (const node &)
void	add_field (field *a_field)
bool	write_fields (write_action &a_action)
bool	read_fields (read_action &a_action)
field_desc::offset_t	field_offset (const field *a_field) const
field *	find_field (const field_desc &a_rdesc) const
void	check_fields (std::ostream &a_out) const
Protected Member Functions inherited from tools::sg::gstos
	gstos ()
virtual	~gstos ()
	gstos (const gstos &)
gstos &	operator= (const gstos &a_from)
unsigned int	get_tex_id (std::ostream &a_out, render_manager &a_mgr, const img_byte &a_img, bool a_NEAREST)
virtual unsigned int	create_gsto (std::ostream &, render_manager &)
unsigned int	get_gsto_id (std::ostream &a_out, render_manager &a_mgr)
void	clean_gstos ()
void	clean_gstos (render_manager *a_mgr)
unsigned int	_find (render_manager *a_mgr)
Protected Member Functions inherited from tools::sg::base_tex
void	_update_sg_ (std::ostream &a_out)
void	set_tcs (float a_tcs[8])

Additional Inherited Members
Public Types inherited from tools::sg::base_tex
enum	intersect_type { intersect_down, intersect_move, intersect_up }
Static Protected Member Functions inherited from tools::sg::base_tex
static void	dump (std::ostream &a_out, const std::string &a_cmt, const img_byte &a_img)
static void	dump_not_null (std::ostream &a_out, const std::string &a_cmt, const img_byte &a_img)
Protected Attributes inherited from tools::sg::gstos
std::vector< std::pair< unsigned int, render_manager * > >	m_gstos
Protected Attributes inherited from tools::sg::base_tex
img_byte	m_img

Detailed Description

Definition at line 26 of file tex_rect.

Member Typedef Documentation

f12

typedef float tools::sg::tex_rect::f12[12]

protected

Definition at line 248 of file tex_rect.

f18

typedef float tools::sg::tex_rect::f18[18]

protected

Definition at line 302 of file tex_rect.

Constructor & Destructor Documentation

tex_rect() [1/2]

tools::sg::tex_rect::tex_rect ( )

inline

Definition at line 197 of file tex_rect.

  :parent()
  ,base_tex()
  ,show_border(false)
  ,height(1)
  {
    add_fields();
  }

~tex_rect()

virtual tools::sg::tex_rect::~tex_rect ( )

inlinevirtual

Definition at line 205 of file tex_rect.

{}

tex_rect() [2/2]

tools::sg::tex_rect::tex_rect ( const tex_rect &  a_from )

inline

Definition at line 207 of file tex_rect.

  :parent(a_from)
  ,gstos(a_from)
  ,base_tex(a_from)
  ,show_border(a_from.show_border)
  ,height(a_from.height)
  {
    add_fields();
  }

Member Function Documentation

_back()

void tools::sg::tex_rect::_back ( f12 &  back )

inlineprotected

Definition at line 290 of file tex_rect.

                        { //[12]
    float aspect = float(img.value().width())/float(img.value().height());
    float h2 = height*0.5f;
    float w2 = aspect*h2;
    float d2 = 0;
 
    back[0] =  w2;back[ 1] = -h2;back[ 2] = d2;
    back[3] = -w2;back[ 4] = -h2;back[ 5] = d2;
    back[6] = -w2;back[ 7] =  h2;back[ 8] = d2;
    back[9] =  w2;back[10] =  h2;back[11] = d2;
  }

_front()

void tools::sg::tex_rect::_front ( f12 &  front, f12 &  nms, float  a_epsil = 0.0f  )

inlineprotected

Definition at line 249 of file tex_rect.

                                                        { //[12]
    float aspect = float(img.value().width())/float(img.value().height());
    float h2 = height*0.5f;
    float w2 = aspect*h2;
 
    h2 += a_epsil;
    w2 += a_epsil;
 
    front[0] = -w2;
    front[1] = -h2;
    front[2] =  0;
 
    front[3] =  w2;
    front[4] = -h2;
    front[5] =  0;
 
    front[6] =  w2;
    front[7] =  h2;
    front[8] =  0;
 
    front[ 9] = -w2;
    front[10] =  h2;
    front[11] =  0;
 
    nms[0] = 0;
    nms[1] = 0;
    nms[2] = 1;
 
    nms[3] = 0;
    nms[4] = 0;
    nms[5] = 1;
 
    nms[6] = 0;
    nms[7] = 0;
    nms[8] = 1;
 
    nms[9] = 0;
    nms[10] = 0;
    nms[11] = 1;
  }

_tris()

void tools::sg::tex_rect::_tris ( f18 &  tris, f18 &  nms  )

inlineprotected

Definition at line 303 of file tex_rect.

                                {
    f12 back;
    _back(back);
 
    tris[0] = back[0];
    tris[1] = back[1];
    tris[2] = back[2];
 
    tris[3] = back[3];
    tris[4] = back[4];
    tris[5] = back[5];
 
    tris[6] = back[6];
    tris[7] = back[7];
    tris[8] = back[8];
    //
    tris[9]  = back[6];
    tris[10] = back[7];
    tris[11] = back[8];
 
    tris[12] = back[9];
    tris[13] = back[10];
    tris[14] = back[11];
 
    tris[15] = back[0];
    tris[16] = back[1];
    tris[17] = back[2];
 
    nms[0] = 0;
    nms[1] = 0;
    nms[2] = -1;
 
    nms[3] = 0;
    nms[4] = 0;
    nms[5] = -1;
 
    nms[6] = 0;
    nms[7] = 0;
    nms[8] = -1;
    //
    nms[9]  = 0;
    nms[10] = 0;
    nms[11] = -1;
 
    nms[12] = 0;
    nms[13] = 0;
    nms[14] = -1;
 
    nms[15] = 0;
    nms[16] = 0;
    nms[17] = -1;
  }

bbox()

virtual void tools::sg::tex_rect::bbox ( bbox_action &  a_action )

inlinevirtual

Reimplemented from tools::sg::node.

Definition at line 152 of file tex_rect.

                                           {
    if(touched()) {
      update_sg(a_action.out());
      reset_touched();
    }
    if(m_img.is_empty()) return;
    f12 xyzs,nms;
    _front(xyzs,nms);
    a_action.add_points(12,xyzs);
  }

cast()

virtual void* tools::sg::tex_rect::cast ( const std::string &  a_class ) const

inlinevirtual

Reimplemented from tools::sg::base_tex.

Definition at line 29 of file tex_rect.

                                                     {
    {if(void* p = cmp_cast<tex_rect>(this,a_class)) return p;}
    {if(void* p = base_tex::cast(a_class)) return p;}
    return parent::cast(a_class);
  }

intersect_value()

virtual bool tools::sg::tex_rect::intersect_value ( std::ostream &  , intersect_type  , const line< vec3f > &  a_line, std::string &  a_s  ) const

inlinevirtual

Implements tools::sg::base_tex.

Definition at line 163 of file tex_rect.

                                                                                                          {
    // a_line is in local world coordinate.
 
    const img_byte& _img = img.value();
    if(_img.is_empty()) {a_s.clear();return false;}
 
    float aspect = float(_img.width())/float(_img.height());
    float h2 = height.value()*0.5f;
    float w2 = aspect*h2;
 
    plane<vec3f> plane(vec3f(w2,h2,0),vec3f(-w2,h2,0),vec3f(-w2,-h2,0));
    vec3f p;
    if(!plane.intersect(a_line,p)) {a_s.clear();return false;}
 
    float imw = (float)_img.width();
    float imh = (float)_img.height();
 
    //image coordinates :
    int ix = int((imw*p.x()/w2+imw)*0.5f);
    int iy = int((imh*p.y()/h2+imh)*0.5f);
 
    //rgb of pixel :
    std::vector<unsigned char> pixel;
    if((ix<0)||(iy<0)||!_img.pixel(ix,iy,pixel)) {a_s.clear();return false;}
 
    a_s.clear();
    for(unsigned int ipix=0;ipix<pixel.size();ipix++) {
      if(ipix) a_s += " ";
      if(!numas<float>(float(pixel[ipix])/255.0f,a_s)){}
    }
 
    return true;
  }

node_desc_fields()

virtual const desc_fields& tools::sg::tex_rect::node_desc_fields ( ) const

inlinevirtual

Reimplemented from tools::sg::node.

Definition at line 38 of file tex_rect.

                                                      {
    TOOLS_FIELD_DESC_NODE_CLASS(tools::sg::tex_rect)
    static const desc_fields s_v(parent::node_desc_fields(),6, //WARNING : take care of count.
      TOOLS_ARG_FIELD_DESC(img),
      TOOLS_ARG_FIELD_DESC(back_color),
      TOOLS_ARG_FIELD_DESC(expand),
      TOOLS_ARG_FIELD_DESC(limit),
      TOOLS_ARG_FIELD_DESC(show_border),
      TOOLS_ARG_FIELD_DESC(height)
    );
    return s_v;
  }

operator=()

tex_rect& tools::sg::tex_rect::operator= ( const tex_rect &  a_from )

inline

Definition at line 216 of file tex_rect.

                                             {
    parent::operator=(a_from);
    gstos::operator=(a_from);
    base_tex::operator=(a_from);
    if(&a_from==this) return *this;
    show_border = a_from.show_border;
    height = a_from.height;
    return *this;
  }

pick()

virtual void tools::sg::tex_rect::pick ( pick_action &  a_action )

inlinevirtual

Reimplemented from tools::sg::node.

Definition at line 141 of file tex_rect.

                                           {
    if(touched()) {
      update_sg(a_action.out());
      reset_touched();
    }
    if(m_img.is_empty()) return;
    f12 xyzs,nms;
    _front(xyzs,nms);
    a_action.add__primitive(*this,gl::triangle_fan(),12,xyzs,true);
  }

render()

virtual void tools::sg::tex_rect::render ( render_action &  a_action )

inlinevirtual

Reimplemented from tools::sg::node.

Definition at line 60 of file tex_rect.

                                               {
#ifdef TOOLS_SG_TEX_RECT_DEBUG
    a_action.out() << "tools::tex_rect::render : begin : 001 : " << std::endl;
#endif
 
    //NOTE : we draw border (show_border is true) and background even if
    //       gen_texture() failed.
 
    if(touched()) {
#ifdef TOOLS_SG_TEX_RECT_DEBUG
      a_action.out() << "tools::tex_rect::render : touched." << std::endl;
#endif
      update_sg(a_action.out());
      reset_touched();
    }
    if(m_img.is_empty()) {
#ifdef TOOLS_SG_TEX_RECT_DEBUG
      a_action.out() << "tools::tex_rect::render : m_img is empty." << std::endl;
#endif
      return;
    }
 
#ifdef TOOLS_SG_TEX_RECT_DEBUG
    a_action.out() << "tools::tex_rect::render : have a m_img. get_tex_id ..." << std::endl;
#endif
 
    unsigned int _id = get_tex_id(a_action.out(),a_action.render_manager(),m_img,nearest.value());
 
#ifdef TOOLS_SG_TEX_RECT_DEBUG
    a_action.out() << "tools::tex_rect::render : get_tex_id : " << _id << "." << std::endl;
#endif
 
    const state& state = a_action.state();
 
    //image must be 2^n,2^m in size !
    // exa : 128x64
 
    f12 xyzs;
 
    if(show_border.value()) {
#ifdef TOOLS_SG_TEX_RECT_DEBUG
      a_action.out() << "tools::tex_rect::render : show_border." << std::endl;
#endif
      f12 nms;
      _front(xyzs,nms,0.01f);
 
      a_action.color4f(1,0,0,1);
      a_action.line_width(4);
 
      a_action.draw_vertex_array(gl::line_loop(),12,xyzs);
 
      //pushes back the filled polygons to avoid z-fighting with lines
      a_action.set_polygon_offset(true);
 
      a_action.color4f(state.m_color);
      a_action.line_width(state.m_line_width);
    }
 
#ifdef TOOLS_SG_TEX_RECT_DEBUG
    a_action.out() << "tools::tex_rect::render : draw back face." << std::endl;
#endif
 
    //draw a back face pointing toward negative z :
   {a_action.color4f(back_color.value());
    f18 tris,nms;
    _tris(tris,nms);
    a_action.draw_vertex_normal_array(gl::triangles(),18,tris,nms);
    a_action.color4f(state.m_color);}
 
    if(_id) {
#ifdef TOOLS_SG_TEX_RECT_DEBUG
      a_action.out() << "tools::tex_rect::render : draw_vertex_normal_array_texture." << std::endl;
#endif
      f12 nms;
      _front(xyzs,nms);
      float tcs[8];
      set_tcs(tcs);
      a_action.draw_vertex_normal_array_texture(gl::triangle_fan(),12,xyzs,nms,_id,tcs);
    }
    a_action.set_polygon_offset(state.m_GL_POLYGON_OFFSET_FILL);
  }

rendered_size()

void tools::sg::tex_rect::rendered_size ( std::ostream &  a_out, unsigned int &  a_w, unsigned int &  a_h  )

inline

Definition at line 229 of file tex_rect.

                                                                            {
    update_sg(a_out);
    reset_touched();
    a_w = m_img.width();
    a_h = m_img.height();
  }

update_sg()

void tools::sg::tex_rect::update_sg ( std::ostream &  a_out )

inlineprotected

Definition at line 238 of file tex_rect.

                                    {
    clean_gstos(); //must reset for all render_manager.
    if(height.value()<=0) {
      m_img.make_empty();
      return;
    }
    base_tex::_update_sg_(a_out);
  }

Member Data Documentation

height

sf<float> tools::sg::tex_rect::height

Definition at line 36 of file tex_rect.

show_border

sf<bool> tools::sg::tex_rect::show_border

Definition at line 35 of file tex_rect.

---

The documentation for this class was generated from the following file:

• /Users/barrand/private/dev/softinex/g4tools/g4tools/tools/sg/tex_rect