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/home/landauf/painter/miniproject/image/imagergba.h File Reference

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Compounds

struct Hsva

C-struct that describes an hsva pixel-value. More...

struct ImageRGBA

C-struct that holds an rgba image. More...

struct Rgba

C-struct that describes an rgba pixel-value. More...

Functions

ImageRGBA * imageRgbaNew (int width, int height)

Creates a new rgba image.

void imageRgbaFree (ImageRGBA *img)

Deletes an rgba image.

ImageRGBA * imageRgbaClone (const ImageRGBA *img)

Creates a copy of an rgba image.

void imageRgbaCopy (const ImageRGBA *src, const ImageRGBA *dest)

Writes an rgba image \src to an rgba image \dest. Both images must have the same extensions.

void imageRgbaClear (ImageRGBA *img)

Clears an rgba image.

void imageRgbaSet (ImageRGBA *img, unsigned r, unsigned g, unsigned b, unsigned a)

Sets all pixels in the image to a given value.

void imageRgbaSetArea (ImageRGBA *img, int x0, int y0, int x1, int y1, Rgba color)

ImageRGBA * imageRgbaReadTIFF (const char *fname)

Reads an rgba image from a TIFF file.

int imageRgbaWriteTIFF (const char *fname, const ImageRGBA *img)

Writes an rgba image as a TIFF file.

void imageRgbaDrawLine (ImageRGBA *img, int x0, int y0, int x1, int y1, Rgba colorValue, int lx0=0, int ly0=0, int lx1=-1, int ly1=-1)

Draws a line into a color image.

void imageRgbaInvertLine (ImageRGBA *img, int x0, int y0, int x1, int y1, int lx0=0, int ly0=0, int lx1=-1, int ly1=-1)

Draws a line into a color image by inverting pixels.

void imageRgbaDrawHorizontalAreaLine (ImageRGBA *img, int x0, int x1, int y, int colorOffset)

void imageRgbaDrawVerticalAreaLine (ImageRGBA *img, int y0, int y1, int x, int colorOffset)

void imageRgbaDrawEllipse (ImageRGBA *img, int cx, int cy, int halfaxis_x, int halfaxis_y, Rgba colorValue, int lx0=0, int ly0=0, int lx1=-1, int ly1=-1)

Draws an ellipse into a color image.

void imageRgbaInvertEllipse (ImageRGBA *img, int cx, int cy, int a, int b)

Draws an ellipse into a color image by inverting pixels.

void imageRgbaDrawPoint (ImageRGBA *img, int x, int y, Rgba colorValue)

Draws a single-pixel sized point into a color image.

void imageRgbaDrawInvertedPoint (ImageRGBA *img, int x, int y)

Draws a single-pixel sized point into a color image by inverting the pixel.

Rgba imageRgbaInterpolate (ImageRGBA *img, float x, float y)

int imageRgbaInterpolateSubImage (ImageRGBA *img, float x, float y, int w, int h, int offset)

Rgba imageRgbaInterpolateColors (float x, float y, Rgba topleft, Rgba topright, Rgba bottomleft, Rgba bottomright)

Hsva RGBtoHSV (Rgba RGBColor)

Rgba HSVtoRGB (Hsva HSVColor)

void gaussian (ImageRGBA *img, ImageRGBA *temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, int mode, unsigned char calc=1)

void horizontal_blur (ImageRGBA *img, ImageRGBA *temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, int mode, unsigned char calc=1)

void vertical_blur (ImageRGBA *img, ImageRGBA *temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, int mode, unsigned char calc=1)

void motion_blur (ImageRGBA *img, ImageRGBA *temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, float value2, int mode, unsigned char calc=1)

void holdHighest (int *stack, int numElements, int newElement)

Function Documentation

void gaussian ( ImageRGBA * img,

ImageRGBA * temp2,

int lowAreaX,

int lowAreaY,

int highAreaX,

int highAreaY,

float value1,

int mode,

unsigned char calc = 1

)

Definition at line 910 of file imagergba.cpp.
References horizontal_blur(), and vertical_blur().
Referenced by blackblur::LBAction(), whiteblur::LBAction(), halfblur::LBAction(), sharpen::LBAction(), strokes::LBAction(), cutout::LBAction(), bw::LBAction(), relief::LBAction(), and chrome::LBAction().

void holdHighest ( int * stack,

int numElements,

int newElement

)

Definition at line 1267 of file imagergba.cpp.
Referenced by cutout::LBAction().

void horizontal_blur ( ImageRGBA * img,

ImageRGBA * temp2,

int lowAreaX,

int lowAreaY,

int highAreaX,

int highAreaY,

float value1,

int mode,

unsigned char calc = 1

)

Definition at line 939 of file imagergba.cpp.
References Rgba::a, Rgba::b, ImageRGBA::data, Rgba::g, Rgba::r, and ImageRGBA::width.
Referenced by gaussian(), blur::LBAction(), and starlight::LBAction().

Rgba HSVtoRGB ( Hsva HSVColor )

Definition at line 852 of file imagergba.cpp.
References Hsva::a, Rgba::a, Rgba::b, Rgba::g, Hsva::h, Rgba::r, Hsva::s, and Hsva::v.
Referenced by colorize::action(), hue::action(), and effect::showMenu().

void imageRgbaClear ( ImageRGBA * img )

Clears an rgba image.
All pixels in the image are set to white, and alpha=255. So, a call to imageRgbaClear(img) is identical to imageRgbaClear(img, 255, 255, 255, 255).
Parameters:

img the image to be cleared

Definition at line 118 of file imagergba.cpp.
References ImageRGBA::bytesPerPixel, and imageRgbaSet().

ImageRGBA* imageRgbaClone ( const ImageRGBA * img )

Creates a copy of an rgba image.
The copy has got the same extent and image data.
Parameters:

img source image

Returns:
a pointer to the new ImageRGBA struct

Definition at line 81 of file imagergba.cpp.
References ImageRGBA::bytesPerPixel, ImageRGBA::data, ImageRGBA::height, imageRgbaNew(), and ImageRGBA::width.
Referenced by main().

void imageRgbaCopy ( const ImageRGBA * src,

const ImageRGBA * dest

)

Writes an rgba image \src to an rgba image \dest. Both images must have the same extensions.
src and dest have got the same extents.
Parameters:

src source image

dest source image

Definition at line 102 of file imagergba.cpp.
References ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by blackblur::blackblur(), blur::blur(), box::box(), brightness::brightness(), brush::brush(), bubble::bubble(), buttonize::buttonize(), bw::bw(), draw::changeMode(), channel::channel(), chrome::chrome(), colorize::colorize(), comb::comb(), contrast::contrast(), cutout::cutout(), dots::dots(), draw::draw(), edge::edge(), emboss::emboss(), glass::glass(), gray::gray(), halfblur::halfblur(), hue::hue(), draw::idleAction(), invert::invert(), keyboardCB(), twirl::keyLEFT(), twirl::keyRIGHT(), draw::LB(), halfblur::LBAction(), blur::LBAction(), telescope::LBAction(), strokes::LBAction(), cutout::LBAction(), bw::LBAction(), relief::LBAction(), chrome::LBAction(), lens::lens(), lines::lines(), mosaic::mosaic(), noise::noise(), posterize::posterize(), draw::RBAction(), scroll::RBAction(), artistic::RBAction(), matrices::RBAction(), distort::RBAction(), geometric::RBAction(), color::RBAction(), relief::relief(), resetImage(), rgbdots::rgbdots(), ripple::ripple(), saturation::saturation(), scroll::scroll(), separate::separate(), sharpen::sharpen(), shine::shine(), solarize::solarize(), spatter::spatter(), starlight::starlight(), strokes::strokes(), telescope::telescope(), twirl::twirl(), wave::wave(), and whiteblur::whiteblur().

void imageRgbaDrawEllipse ( ImageRGBA * img,

int cx,

int cy,

int halfaxis_x,

int halfaxis_y,

Rgba colorValue,

int lx0 = 0,

int ly0 = 0,

int lx1 = -1,

int ly1 = -1

)

Draws an ellipse into a color image.
The ellipse is drawn with pixels of color colorValue around the center point (cx, cy) with half-axes in x- and y-direction (halfaxis_x, halfaxis_y).
Definition at line 489 of file imagergba.cpp.
References ImageRGBA::height, imageRgbaDrawPoint(), and ImageRGBA::width.
Referenced by glass::drawLightningMenu(), and draw::idleAction().

void imageRgbaDrawHorizontalAreaLine ( ImageRGBA * img,

int x0,

int x1,

int y,

int colorOffset

)

Definition at line 446 of file imagergba.cpp.
References Rgba::a, Rgba::b, ImageRGBA::data, Rgba::g, Rgba::r, and ImageRGBA::width.
Referenced by effect::showArea().

void imageRgbaDrawInvertedPoint ( ImageRGBA * img,

int x,

int y

) [inline]

Draws a single-pixel sized point into a color image by inverting the pixel.
The point is drawn at position (x, y).
Definition at line 633 of file imagergba.cpp.
References ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by draw::idleAction(), and imageRgbaInvertEllipse().

void imageRgbaDrawLine ( ImageRGBA * img,

int x0,

int y0,

int x1,

int y1,

Rgba colorValue,

int lx0 = 0,

int ly0 = 0,

int lx1 = -1,

int ly1 = -1

)

Draws a line into a color image.
The line is drawn with pixels of color colorValue from the point (x0, y0) to (x1, y1).
Definition at line 292 of file imagergba.cpp.
References clip(), ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by glass::drawLightningMenu(), draw::idleAction(), and strokes::LBAction().

void imageRgbaDrawPoint ( ImageRGBA * img,

int x,

int y,

Rgba colorValue

) [inline]

Draws a single-pixel sized point into a color image.
The point is drawn with a color colorValue at position (x, y).
Definition at line 623 of file imagergba.cpp.
References ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by imageRgbaDrawEllipse().

void imageRgbaDrawVerticalAreaLine ( ImageRGBA * img,

int y0,

int y1,

int x,

int colorOffset

)

Definition at line 466 of file imagergba.cpp.
References Rgba::a, Rgba::b, ImageRGBA::data, Rgba::g, Rgba::r, and ImageRGBA::width.
Referenced by effect::showArea().

void imageRgbaFree ( ImageRGBA * img )

Deletes an rgba image.
The memory used by the image is freed. All pointers to the image become invalid. After use, the created image must be deleted by imageRgbaFree().
Parameters:

img the image to be deleted

Definition at line 66 of file imagergba.cpp.
References ImageRGBA::bytesPerPixel, and ImageRGBA::data.
Referenced by imageRgbaReadTIFF(), and main().

Rgba imageRgbaInterpolate ( ImageRGBA * img,

float x,

float y

)

Definition at line 647 of file imagergba.cpp.
References Rgba::a, Rgba::b, ImageRGBA::data, Rgba::g, ImageRGBA::height, Rgba::r, and ImageRGBA::width.
Referenced by wave::idleAction(), twirl::idleAction(), lens::idleAction(), bubble::idleAction(), ripple::idleAction(), and telescope::idleAction().

Rgba imageRgbaInterpolateColors ( float x,

float y,

Rgba topleft,

Rgba topright,

Rgba bottomleft,

Rgba bottomright

)

Definition at line 766 of file imagergba.cpp.
References Rgba::a, Rgba::b, Rgba::g, and Rgba::r.
Referenced by dots::LBAction().

int imageRgbaInterpolateSubImage ( ImageRGBA * img,

float x,

float y,

int w,

int h,

int offset

)

Definition at line 706 of file imagergba.cpp.
References ImageRGBA::data, and Rgba::r.
Referenced by glass::LBAction().

void imageRgbaInvertEllipse ( ImageRGBA * img,

int cx,

int cy,

int a,

int b

)

Draws an ellipse into a color image by inverting pixels.
The ellipse is drawn around the center point (c0, c1) to (x1, y1).
Definition at line 563 of file imagergba.cpp.
References imageRgbaDrawInvertedPoint().
Referenced by telescope::idleAction(), draw::idleAction(), and telescope::LBAction().

void imageRgbaInvertLine ( ImageRGBA * img,

int x0,

int y0,

int x1,

int y1,

int lx0 = 0,

int ly0 = 0,

int lx1 = -1,

int ly1 = -1

)

Draws a line into a color image by inverting pixels.
The line is drawn from the point (x0, y0) to (x1, y1).
Definition at line 365 of file imagergba.cpp.
References clip(), ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by draw::idleAction().

ImageRGBA* imageRgbaNew ( int width,

int height

)

Creates a new rgba image.
After use, the image must be deleted by imageRgbaFree().
Parameters:

width width of the new image in pixels

height height of the new image in pixels

Returns:
a pointer to the new ImageRGBA struct

Definition at line 43 of file imagergba.cpp.
References ImageRGBA::bytesPerPixel, ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by imageRgbaClone(), imageRgbaReadTIFF(), and main().

ImageRGBA* imageRgbaReadTIFF ( const char * fname )

Reads an rgba image from a TIFF file.
The image is read from a file named fname. If the file doesn't exist, or the file is no valid TIFF file, NULL is returned.
Parameters:

fname filename

Returns:
the read image; NULL on error

Definition at line 158 of file imagergba.cpp.
References ImageRGBA::data, ImageRGBA::height, imageRgbaFree(), imageRgbaNew(), SWAP_UINT32, and ImageRGBA::width.
Referenced by main().

void imageRgbaSet ( ImageRGBA * img,

unsigned r,

unsigned g,

unsigned b,

unsigned a

)

Sets all pixels in the image to a given value.
All pixels in the image are set to (r, g, b, a).
Parameters:

img the destination image

Definition at line 130 of file imagergba.cpp.
References ImageRGBA::bytesPerPixel, ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by imageRgbaClear(), main(), and effect::showHud().

void imageRgbaSetArea ( ImageRGBA * img,

int x0,

int y0,

int x1,

int y1,

Rgba color

)

Definition at line 145 of file imagergba.cpp.
References ImageRGBA::data, and ImageRGBA::width.
Referenced by blur::LBAction(), rgbdots::LBAction(), dots::LBAction(), strokes::LBAction(), shine::LBAction(), and starlight::LBAction().

int imageRgbaWriteTIFF ( const char * fname,

const ImageRGBA * img

)

Writes an rgba image as a TIFF file.
The image is written to a file named fname. If the file doesn't exist, a new one is created. Otherwise, the existing file is overwritten. If an error occurs, an error value !=0 is returned.
Parameters:

fname filename

Returns:
0 on success

Definition at line 234 of file imagergba.cpp.
References ImageRGBA::bytesPerPixel, ImageRGBA::data, ImageRGBA::height, and ImageRGBA::width.
Referenced by batch(), keyboardCB(), and effect::useMenu().

void motion_blur ( ImageRGBA * img,

ImageRGBA * temp2,

int lowAreaX,

int lowAreaY,

int highAreaX,

int highAreaY,

float value1,

float value2,

int mode,

unsigned char calc = 1

)

Definition at line 1149 of file imagergba.cpp.
References Rgba::a, Rgba::b, ImageRGBA::data, Rgba::g, M_PI, Rgba::r, and ImageRGBA::width.
Referenced by blur::LBAction(), and starlight::LBAction().

Hsva RGBtoHSV ( Rgba RGBColor )

Definition at line 806 of file imagergba.cpp.
References Rgba::a, Hsva::a, Rgba::b, Rgba::g, Hsva::h, Rgba::r, Hsva::s, and Hsva::v.
Referenced by colorize::action(), and hue::action().

void vertical_blur ( ImageRGBA * img,

ImageRGBA * temp2,

int lowAreaX,

int lowAreaY,

int highAreaX,

int highAreaY,

float value1,

int mode,

unsigned char calc = 1

)

Definition at line 1044 of file imagergba.cpp.
References Rgba::a, Rgba::b, ImageRGBA::data, Rgba::g, Rgba::r, and ImageRGBA::width.
Referenced by gaussian(), blur::LBAction(), and starlight::LBAction().

Generated on Mon Jan 30 09:13:03 2006 for Painter Framework by

1.2.18


Compounds
struct	Hsva
	C-struct that describes an hsva pixel-value. More...
struct	ImageRGBA
	C-struct that holds an rgba image. More...
struct	Rgba
	C-struct that describes an rgba pixel-value. More...
Functions
ImageRGBA *	imageRgbaNew (int width, int height)
	Creates a new rgba image.
void	imageRgbaFree (ImageRGBA *img)
	Deletes an rgba image.
ImageRGBA *	imageRgbaClone (const ImageRGBA *img)
	Creates a copy of an rgba image.
void	imageRgbaCopy (const ImageRGBA src, const ImageRGBA dest)
	Writes an rgba image \src to an rgba image \dest. Both images must have the same extensions.
void	imageRgbaClear (ImageRGBA *img)
	Clears an rgba image.
void	imageRgbaSet (ImageRGBA *img, unsigned r, unsigned g, unsigned b, unsigned a)
	Sets all pixels in the image to a given value.
void	imageRgbaSetArea (ImageRGBA *img, int x0, int y0, int x1, int y1, Rgba color)
ImageRGBA *	imageRgbaReadTIFF (const char *fname)
	Reads an rgba image from a TIFF file.
int	imageRgbaWriteTIFF (const char fname, const ImageRGBA img)
	Writes an rgba image as a TIFF file.
void	imageRgbaDrawLine (ImageRGBA *img, int x0, int y0, int x1, int y1, Rgba colorValue, int lx0=0, int ly0=0, int lx1=-1, int ly1=-1)
	Draws a line into a color image.
void	imageRgbaInvertLine (ImageRGBA *img, int x0, int y0, int x1, int y1, int lx0=0, int ly0=0, int lx1=-1, int ly1=-1)
	Draws a line into a color image by inverting pixels.
void	imageRgbaDrawHorizontalAreaLine (ImageRGBA *img, int x0, int x1, int y, int colorOffset)
void	imageRgbaDrawVerticalAreaLine (ImageRGBA *img, int y0, int y1, int x, int colorOffset)
void	imageRgbaDrawEllipse (ImageRGBA *img, int cx, int cy, int halfaxis_x, int halfaxis_y, Rgba colorValue, int lx0=0, int ly0=0, int lx1=-1, int ly1=-1)
	Draws an ellipse into a color image.
void	imageRgbaInvertEllipse (ImageRGBA *img, int cx, int cy, int a, int b)
	Draws an ellipse into a color image by inverting pixels.
void	imageRgbaDrawPoint (ImageRGBA *img, int x, int y, Rgba colorValue)
	Draws a single-pixel sized point into a color image.
void	imageRgbaDrawInvertedPoint (ImageRGBA *img, int x, int y)
	Draws a single-pixel sized point into a color image by inverting the pixel.
Rgba	imageRgbaInterpolate (ImageRGBA *img, float x, float y)
int	imageRgbaInterpolateSubImage (ImageRGBA *img, float x, float y, int w, int h, int offset)
Rgba	imageRgbaInterpolateColors (float x, float y, Rgba topleft, Rgba topright, Rgba bottomleft, Rgba bottomright)
Hsva	RGBtoHSV (Rgba RGBColor)
Rgba	HSVtoRGB (Hsva HSVColor)
void	gaussian (ImageRGBA img, ImageRGBA temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, int mode, unsigned char calc=1)
void	horizontal_blur (ImageRGBA img, ImageRGBA temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, int mode, unsigned char calc=1)
void	vertical_blur (ImageRGBA img, ImageRGBA temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, int mode, unsigned char calc=1)
void	motion_blur (ImageRGBA img, ImageRGBA temp2, int lowAreaX, int lowAreaY, int highAreaX, int highAreaY, float value1, float value2, int mode, unsigned char calc=1)
void	holdHighest (int *stack, int numElements, int newElement)