Imagine::NativeBitmap Class Reference

Native bitmap: image stored in graphics card format, fast to display. More...

#include "Imagine/Graphics.h"

Public Member Functions
	NativeBitmap ()
	Empty constructor.
	NativeBitmap (int w, int h)
	Constructor with dimensions. More...
	NativeBitmap (const NativeBitmap &I)
	Copy constructor.
	~NativeBitmap ()
	Destructor.
const NativeBitmap &	operator= (const NativeBitmap &I)
	Assignment.
void	setColorImage (int x, int y, const byte *r, const byte *g, const byte *b, int w, int h)
	Set color image. More...
void	setColorImage (const IntPoint2 &p, const byte *r, const byte *g, const byte *b, int w, int h)
	Set color image. More...
void	setColorImage (int x, int y, const Color *cols, int w, int h)
	Set color image. More...
void	setColorImage (const IntPoint2 &p, const Color *cols, int w, int h)
	Set color image. More...
void	setColorImage (int x, int y, const byte *rgb, int w, int h)
	Set color image. More...
void	setColorImage (const IntPoint2 &p, const byte *rgb, int w, int h)
	Set color image. More...
void	setGreyImage (int x, int y, const byte *g, int w, int h)
	Set grey image. More...
void	setGreyImage (const IntPoint2 &p, const byte *g, int w, int h)
	Set grey image. More...
void	setPoint (int x, int y, Color col)
	Set point. More...
void	setPoint (const IntPoint2 &p, Color col)
	Set point. More...

Friends
void	putNativeBitmap (int x, int y, const NativeBitmap &bm, bool xorMode, double fact)
	Display native bitmap. More...
void	putNativeBitmap (const IntPoint2 &p, const NativeBitmap &bm, bool xorMode=false, double fact=1.)
	Display native bitmap. More...

Detailed Description

Use it if you want to display the image many times (for example in an animation).

Examples:

Graphics/test/example.cpp, and Graphics/test/test.cpp.

Constructor & Destructor Documentation

NativeBitmap()

Imagine::NativeBitmap::NativeBitmap	(	int	w,
		int	h
	)

Contructs a native bitmap of dimensions (w,h)

Parameters

w,h	dimensions

    NativeBitmap bm(sz,sz);     // with dimensions

Member Function Documentation

setColorImage() [1/6]

void Imagine::NativeBitmap::setColorImage	(	int	x,
		int	y,
		const byte *	r,
		const byte *	g,
		const byte *	b,
		int	w,
		int	h
	)

Fills part of a native bitmap with a bitmap.

Parameters

x,y	top left position in native bitmap
r,g,b	source to be copied into native bitmap
w,h	dimensions

    byte r2[sz*sz],g2[sz*sz],b2[sz*sz];                 // Set color image (3 arrays)
    for (int y=0;y<sz;y++) {
        for (int x=0;x<sz;x++) {
            r2[x+sz*y]=x;
            g2[x+sz*y]=y;
            b2[x+sz*y]=(x+y);
        }
    }
    bm.setColorImage(0,0,r2,g2,b2,sz,sz);               // twice the same (just to check both variants)
    bm.setColorImage(IntPoint2(0,0),r2,g2,b2,sz,sz);        // ...

Examples:

Graphics/test/example.cpp, and Graphics/test/test.cpp.

setColorImage() [2/6]

void Imagine::NativeBitmap::setColorImage ( const IntPoint2 &  p, const byte *  r, const byte *  g, const byte *  b, int  w, int  h  )

inline

Fills part of a native bitmap with a bitmap.

Parameters

p	top left position in native bitmap
r,g,b	source to be copied into native bitmap
w,h	dimensions

    byte r2[sz*sz],g2[sz*sz],b2[sz*sz];                 // Set color image (3 arrays)
    for (int y=0;y<sz;y++) {
        for (int x=0;x<sz;x++) {
            r2[x+sz*y]=x;
            g2[x+sz*y]=y;
            b2[x+sz*y]=(x+y);
        }
    }
    bm.setColorImage(0,0,r2,g2,b2,sz,sz);               // twice the same (just to check both variants)
    bm.setColorImage(IntPoint2(0,0),r2,g2,b2,sz,sz);        // ...

setColorImage() [3/6]

void Imagine::NativeBitmap::setColorImage	(	int	x,
		int	y,
		const Color *	cols,
		int	w,
		int	h
	)

Fills part of a native bitmap with a bitmap.

Parameters

x,y	top left position in native bitmap
cols	source to be copied into native bitmap
w,h	dimensions

    Color cols2[64*64];                                 // Set color image (Color array)
    for (int y=0;y<64;y++)
        for (int x=0;x<64;x++)
            cols2[x+64*y]=Color((x+y)%256,0,0);
    bm.setColorImage(32,32,cols2,64,64);                // twice the same (just to check both variants)
    bm.setColorImage(IntPoint2(32,32),cols2,64,64);     // ...

setColorImage() [4/6]

void Imagine::NativeBitmap::setColorImage ( const IntPoint2 &  p, const Color *  cols, int  w, int  h  )

inline

Fills part of a native bitmap with a bitmap.

Parameters

p	top left position in native bitmap
cols	source to be copied into native bitmap
w,h	dimensions

    Color cols2[64*64];                                 // Set color image (Color array)
    for (int y=0;y<64;y++)
        for (int x=0;x<64;x++)
            cols2[x+64*y]=Color((x+y)%256,0,0);
    bm.setColorImage(32,32,cols2,64,64);                // twice the same (just to check both variants)
    bm.setColorImage(IntPoint2(32,32),cols2,64,64);     // ...

setColorImage() [5/6]

void Imagine::NativeBitmap::setColorImage ( int  x, int  y, const byte *  rgb, int  w, int  h  )

inline

Fills part of a native bitmap with a bitmap.

Parameters

x,y	top left position in native bitmap
rgb	source to be copied into native bitmap
w,h	dimensions

    byte rgb2[3*64*64];                                 // Set color image (1 array)
    for (int y=0;y<64;y++)
        for (int x=0;x<64;x++) {
            rgb2[3*(x+64*y)]=x;
            rgb2[3*(x+64*y)+1]=y;
            rgb2[3*(x+64*y)+2]=x+y;
        }
    bm.setColorImage(64,0,rgb2,64,64);                  // twice the same (just to check both variants)
    bm.setColorImage(IntPoint2(64,0),rgb2,64,64);           // ...

setColorImage() [6/6]

void Imagine::NativeBitmap::setColorImage ( const IntPoint2 &  p, const byte *  rgb, int  w, int  h  )

inline

Fills part of a native bitmap with a bitmap.

Parameters

p	top left position in native bitmap
rgb	source to be copied into native bitmap
w,h	dimensions

    byte rgb2[3*64*64];                                 // Set color image (1 array)
    for (int y=0;y<64;y++)
        for (int x=0;x<64;x++) {
            rgb2[3*(x+64*y)]=x;
            rgb2[3*(x+64*y)+1]=y;
            rgb2[3*(x+64*y)+2]=x+y;
        }
    bm.setColorImage(64,0,rgb2,64,64);                  // twice the same (just to check both variants)
    bm.setColorImage(IntPoint2(64,0),rgb2,64,64);           // ...

setGreyImage() [1/2]

void Imagine::NativeBitmap::setGreyImage	(	int	x,
		int	y,
		const byte *	g,
		int	w,
		int	h
	)

Fills part of a native bitmap with a grey bitmap.

Parameters

x,y	top left position in native bitmap
g	source to be copied into native bitmap
w,h	dimensions

    byte grey2[64*64];                                  // Set grey image
    for (int y=0;y<64;y++)
        for (int x=0;x<64;x++)
            grey2[(x+64*y)]=x+2*y;
    bm.setGreyImage(0,64,grey2,64,64);                  // twice the same (just to check both variants)
    bm.setGreyImage(IntPoint2(0,64),grey2,64,64);           // ...

Examples:

Graphics/test/test.cpp.

setGreyImage() [2/2]

void Imagine::NativeBitmap::setGreyImage ( const IntPoint2 &  p, const byte *  g, int  w, int  h  )

inline

Fills part of a native bitmap with a grey bitmap.

Parameters

p	top left position in native bitmap
g	source to be copied into native bitmap
w,h	dimensions

    byte grey2[64*64];                                  // Set grey image
    for (int y=0;y<64;y++)
        for (int x=0;x<64;x++)
            grey2[(x+64*y)]=x+2*y;
    bm.setGreyImage(0,64,grey2,64,64);                  // twice the same (just to check both variants)
    bm.setGreyImage(IntPoint2(0,64),grey2,64,64);           // ...

setPoint() [1/2]

void Imagine::NativeBitmap::setPoint	(	int	x,
		int	y,
		Color	col
	)

Set color of one point in a native bitmap.

Parameters

x,y	position
col	Color to be copied into native bitmap

    for (int x=0;x<sz;x++)  {                           // Set point
        bm.setPoint(x,x,RED);                           // twice the same (just to check both variants)
        bm.setPoint(x,x,RED);
    }                                                   // ...

Examples:

Graphics/test/example.cpp, and Graphics/test/test.cpp.

setPoint() [2/2]

void Imagine::NativeBitmap::setPoint ( const IntPoint2 &  p, Color  col  )

inline

Set color of one point in a native bitmap.

Parameters

p	position
col	Color to be copied into native bitmap

    for (int x=0;x<sz;x++)  {                           // Set point
        bm.setPoint(x,x,RED);                           // twice the same (just to check both variants)
        bm.setPoint(x,x,RED);
    }                                                   // ...

Friends And Related Function Documentation

putNativeBitmap [1/2]

void putNativeBitmap ( int  x, int  y, const NativeBitmap &  bm, bool  xorMode, double  fact  )

friend

Displays native bitmap into active window

Parameters

x,y	drawing position (top left in window)
bm	the native bitmap to display
xorMode	XOR drawing (default=off). Used twice, recovers the original content
fact	scaling factor (default=1.)

    putNativeBitmap(0,0,bm);                            // Put native bitmap
    putNativeBitmap(IntPoint2(300,0),bm,false,1.5);
    putNativeBitmap(0,300,bm,false,0.75);
    for (int i=0;i<1024;i+=8) {
        putNativeBitmap(i,200,bm,true,0.5);             // use XOR to display/undisplay
        milliSleep(100);
        putNativeBitmap(i,200,bm,true,0.5);
    }                                                   // ...

putNativeBitmap [2/2]

void putNativeBitmap ( const IntPoint2 &  p, const NativeBitmap &  bm, bool  xorMode = false, double  fact = 1.  )

friend

Displays native bitmap into active window

Parameters

p	drawing position (top left in window)
bm	the native bitmap to display
xorMode	XOR drawing (default=off). Used twice, recovers the original content
fact	scaling factor (default=1.)

    putNativeBitmap(0,0,bm);                            // Put native bitmap
    putNativeBitmap(IntPoint2(300,0),bm,false,1.5);
    putNativeBitmap(0,300,bm,false,0.75);
    for (int i=0;i<1024;i+=8) {
        putNativeBitmap(i,200,bm,true,0.5);             // use XOR to display/undisplay
        milliSleep(100);
        putNativeBitmap(i,200,bm,true,0.5);
    }                                                   // ...

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

• /home/pascal/Ponts/svn/ImagineQt/Imagine/Graphics/src/Imagine/Graphics/ImageIO.h