tools::zb::buffer::point_writer Class Reference

Inheritance diagram for tools::zb::buffer::point_writer:

Collaboration diagram for tools::zb::buffer::point_writer:

Public Member Functions
virtual void	write (ZPos a_x, ZPos a_y, ZZ a_z)
	point_writer (ZPixel a_pixel, buffer &a_buffer, unsigned int a_size)
virtual	~point_writer ()
	point_writer (const point_writer &a_from)
point_writer &	operator= (const point_writer &a_from)
bool	get_pixel (ZPos a_x, ZPos a_y, ZZ, ZPixel &a_pixel) const
Public Member Functions inherited from tools::zb::buffer::writer
	writer (ZPixel a_pixel)
virtual	~writer ()
	writer (const writer &a_from)
writer &	operator= (const writer &a_from)

Protected Member Functions
void	_write (ZPos a_x, ZPos a_y, ZZ a_z)

Protected Attributes
buffer &	m_buffer
unsigned int	m_size

Additional Inherited Members
Public Attributes inherited from tools::zb::buffer::writer
ZPixel	m_pixel

Detailed Description

Definition at line 42 of file buffer.

Constructor & Destructor Documentation

point_writer() [1/2]

tools::zb::buffer::point_writer::point_writer ( ZPixel  a_pixel, buffer &  a_buffer, unsigned int  a_size  )

inline

Definition at line 59 of file buffer.

    :writer(a_pixel)
    ,m_buffer(a_buffer)
    ,m_size(a_size)
    {}

~point_writer()

virtual tools::zb::buffer::point_writer::~point_writer ( )

inlinevirtual

Definition at line 64 of file buffer.

{}

point_writer() [2/2]

tools::zb::buffer::point_writer::point_writer ( const point_writer &  a_from )

inline

Definition at line 66 of file buffer.

    :writer(a_from)
    ,m_buffer(a_from.m_buffer)
    ,m_size(a_from.m_size)
    {}

Member Function Documentation

_write()

void tools::zb::buffer::point_writer::_write ( ZPos  a_x, ZPos  a_y, ZZ  a_z  )

inlineprotected

Definition at line 86 of file buffer.

                                          {
      if((a_x<m_buffer.m_begX) || (a_x>m_buffer.m_endX)) return;
      if((a_y<m_buffer.m_begY) || (a_y>m_buffer.m_endY)) return;
 
      ZReal zpoint = (ZReal)a_z;
      unsigned long offset = a_y * m_buffer.m_zbw + a_x;
      ZReal* zbuff = m_buffer.m_zbuffer + offset;
 
      if(m_buffer.m_depth_test) {if(zpoint<*zbuff) return;}
 
      ZPixel* zimage = m_buffer.m_zimage  + offset;
 
      /* transparency :
      ZPixel old_pix = *zimage;
      // need the alpha of m_pixel !
      */
 
      *zbuff = zpoint;
      *zimage = m_pixel;
    }

get_pixel()

bool tools::zb::buffer::point_writer::get_pixel ( ZPos  a_x, ZPos  a_y, ZZ  , ZPixel &  a_pixel  ) const

inline

Definition at line 77 of file buffer.

                                                                 {
      if((a_x<m_buffer.m_begX) || (a_x>m_buffer.m_endX)) {a_pixel=0;return false;}
      if((a_y<m_buffer.m_begY) || (a_y>m_buffer.m_endY)) {a_pixel=0;return false;}
      unsigned long offset = a_y * m_buffer.m_zbw + a_x;
      ZPixel* zimage = m_buffer.m_zimage  + offset;
      a_pixel = *zimage;
      return true;
    }

operator=()

point_writer& tools::zb::buffer::point_writer::operator= ( const point_writer &  a_from )

inline

Definition at line 71 of file buffer.

                                                       {
      writer::operator=(a_from);
      m_size = a_from.m_size;
      return *this;
    }

write()

virtual void tools::zb::buffer::point_writer::write ( ZPos  a_x, ZPos  a_y, ZZ  a_z  )

inlinevirtual

Implements tools::zb::buffer::writer.

Definition at line 44 of file buffer.

                                                 {
      if(m_size>=1) { //see zb_action::npix().
        ZPos x,y;
        for(int i=-int(m_size);i<=int(m_size);i++) {
          x = a_x + i;
          for(int j=-int(m_size);j<=int(m_size);j++) {
            y = a_y + j;
            _write(x,y,a_z);
          }
        }
      } else {
        _write(a_x,a_y,a_z);
      }
    }

Member Data Documentation

m_buffer

buffer& tools::zb::buffer::point_writer::m_buffer

protected

Definition at line 107 of file buffer.

m_size

unsigned int tools::zb::buffer::point_writer::m_size

protected

Definition at line 108 of file buffer.

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

• /Users/barrand/private/dev/softinex/g4tools/g4tools/tools/zb/buffer