agg::rendering_buffer Class Reference

#include <AGG.h>

List of all members.

Public Member Functions
	~rendering_buffer ()
	rendering_buffer (unsigned char *buf, unsigned width, unsigned height, int stride)
void	attach (unsigned char *buf, unsigned width, unsigned height, int stride)
const unsigned char *	buf () const
unsigned	width () const
unsigned	height () const
int	stride () const
bool	inbox (int x, int y) const
unsigned	abs_stride () const
unsigned char *	row (unsigned y)
const unsigned char *	row (unsigned y) const
Private Member Functions
	rendering_buffer (const rendering_buffer &)
const rendering_buffer &	operator= (const rendering_buffer &)
Private Attributes
unsigned char *	m_buf
unsigned char **	m_rows
unsigned	m_width
unsigned	m_height
int	m_stride
unsigned	m_max_height

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Detailed Description

Definition at line 143 of file AGG.h.

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Constructor & Destructor Documentation

agg::rendering_buffer::~rendering_buffer

(

)

Definition at line 1272 of file AGG.h.

    {
        delete [] m_rows;
    }

agg::rendering_buffer::rendering_buffer	(	unsigned char *	buf,
		unsigned	width,
		unsigned	height,
		int	stride
	)

Definition at line 1279 of file AGG.h.

                                                        :
        m_buf(0),
        m_rows(0),
        m_width(0),
        m_height(0),
        m_stride(0),
        m_max_height(0)
    {
        attach(buf, width, height, stride);
    }

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agg::rendering_buffer::rendering_buffer

(

const rendering_buffer &

)

[private]

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Member Function Documentation

unsigned agg::rendering_buffer::abs_stride

(

)

const [inline]

Definition at line 171 of file AGG.h.

        { 
            return (m_stride < 0) ? unsigned(-m_stride) : unsigned(m_stride); 
        }

void agg::rendering_buffer::attach	(	unsigned char *	buf,
		unsigned	width,
		unsigned	height,
		int	stride
	)

Definition at line 1295 of file AGG.h.

    {
        m_buf = buf;
        m_width = width;
        m_height = height;
        m_stride = stride;
        if(height > m_max_height)
        {
            delete [] m_rows;
            m_rows = new unsigned char* [m_max_height = height];
        }

        unsigned char* row_ptr = m_buf;

        if(stride < 0)
        {
            row_ptr = m_buf - int(height - 1) * stride;
        }

        unsigned char** rows = m_rows;

        while(height--)
        {
            *rows++ = row_ptr;
            row_ptr += stride;
        }
    }

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const unsigned char* agg::rendering_buffer::buf

(

)

const [inline]

Definition at line 161 of file AGG.h.

{ return m_buf;    }

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unsigned agg::rendering_buffer::height

(

)

const [inline]

Definition at line 163 of file AGG.h.

{ return m_height; }

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bool agg::rendering_buffer::inbox	(	int	x,
		int	y
	)		const [inline]

Definition at line 166 of file AGG.h.

        {
            return x >= 0 && y >= 0 && x < int(m_width) && y < int(m_height);
        }

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const rendering_buffer& agg::rendering_buffer::operator=

(

const rendering_buffer &

)

[private]

unsigned char* agg::rendering_buffer::row

(

unsigned

y

)

[inline]

Definition at line 176 of file AGG.h.

{ return m_rows[y];  }

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const unsigned char* agg::rendering_buffer::row

(

unsigned

y

)

const [inline]

Definition at line 177 of file AGG.h.

{ return m_rows[y]; }

int agg::rendering_buffer::stride

(

)

const [inline]

Definition at line 164 of file AGG.h.

{ return m_stride; }

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unsigned agg::rendering_buffer::width

(

)

const [inline]

Definition at line 162 of file AGG.h.

{ return m_width;  }

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Member Data Documentation

unsigned char* agg::rendering_buffer::m_buf [private]

Definition at line 184 of file AGG.h.

unsigned agg::rendering_buffer::m_height [private]

Definition at line 187 of file AGG.h.

unsigned agg::rendering_buffer::m_max_height [private]

Definition at line 189 of file AGG.h.

unsigned char** agg::rendering_buffer::m_rows [private]

Definition at line 185 of file AGG.h.

int agg::rendering_buffer::m_stride [private]

Definition at line 188 of file AGG.h.

unsigned agg::rendering_buffer::m_width [private]

Definition at line 186 of file AGG.h.

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

• /home/cube/sources/osgearth/src/osgEarthSymbology/AGG.h