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#ifndef __IMAGE_H__
#define __IMAGE_H__
/* +-------------------------------------------------------------------+ */
/* | Copyright (C) 1993, David Koblas (koblas@netcom.com) | */
/* | Copyright 1995, 1996 Torsten Martinsen (bullestock@dk-online.dk) | */
/* | | */
/* | Permission to use, copy, modify, and to distribute this software | */
/* | and its documentation for any purpose is hereby granted without | */
/* | fee, provided that the above copyright notice appear in all | */
/* | copies and that both that copyright notice and this permission | */
/* | notice appear in supporting documentation. There is no | */
/* | representations about the suitability of this software for | */
/* | any purpose. this software is provided "as is" without express | */
/* | or implied warranty. | */
/* | | */
/* +-------------------------------------------------------------------+ */
/* $Id: image.h,v 1.7 1996/05/28 09:17:00 torsten Exp $ */
typedef struct {
int refCount; /* reference count */
/*
** Special notes:
** if the image isBW then there will be a two entry
** colormap BLACK == 0, WHITE == 1
** if the image isGrey, then the colormap is 256 entries
** BLACK == 0 .. WHITE == 255
*/
int isGrey, isBW; /* simple indicator flags GreyScale, Black & White */
/*
** bytes per pixel (3 for RGB, 2 for 0..256+ cmap, 1 for 0..256 cmap)
*/
int scale;
/*
** Colormap entries
** rgb rgb rgb [1..size]
*/
int cmapPacked; /* Boolean, is the colormap packed
down to just the used colors */
int cmapSize; /* number of colors in colormap == 0 if no colormap */
unsigned char *cmapData;
/*
** Image data
** either rgb rgb rgb
** or idx idx idx
**
** if image has colormap, and the size > 256, then
** data is pointers to unsigned shorts.
*/
int width, height; /* width, height of image */
unsigned char *data;
unsigned char *maskData;
/*
** These values are here because the XPM calls are TOO dependant
** on X Windows. They are not, and should not, be used by anything
** else.
*/
unsigned long sourcePixmap;
unsigned long sourceColormap;
unsigned long sourceMask;
} Image;
#ifdef _XLIB_H_
/* Used to transfer information to routines in iprocess.c */
struct imageprocessinfo {
int oilArea;
int noiseDelta;
int spreadDistance;
int pixelizeXSize;
int pixelizeYSize;
int despeckleMask;
int smoothMaskSize;
int tilt;
int solarizeThreshold;
int contrastW;
int contrastB;
int quantizeColors;
int tiltX1;
int tiltY1;
int tiltX2;
int tiltY2;
XColor *background;
};
#endif
#define ImagePixel(image, x, y) \
(((image)->cmapSize == 0) \
? &((image)->data[((y) * (image)->width + (x)) * 3]) \
: (((image)->cmapSize > 256) \
? &((image)->cmapData[((unsigned short *)(image)->data) \
[(y) * (image)->width + (x)] * 3]) \
: &((image)->cmapData[(image)->data[(y)*(image)->width+(x)] * 3])))
#define ImageSetCmap(image, index, r, g, b) do { \
image->cmapData[(index) * 3 + 0] = r; \
image->cmapData[(index) * 3 + 1] = g; \
image->cmapData[(index) * 3 + 2] = b; \
} while (0)
/* image.c */
Image *ImageNew(int width, int height);
Image *ImageNewCmap(int width, int height, int size);
Image *ImageNewBW(int width, int height);
Image *ImageNewGrey(int width, int height);
void ImageMakeMask(Image * image);
void ImageDelete(Image * image);
Image *ImageToRGB(Image * image);
#ifdef _XtIntrinsic_h
Image *PixmapToImage(Widget w, Pixmap pix, Colormap cmap);
void PixmapToImageMask(Widget w, Image * image, Pixmap mask);
Boolean ImageToPixmap(Image * image, Widget w, Pixmap * pix, Colormap * cmap);
Pixmap MaskDataToPixmap(Widget w, int width, int height,
char *data, XRectangle * rect);
Pixmap ImageMaskToPixmap(Widget w, Image * image);
Boolean ImageToPixmapCmap(Image * image, Widget w, Pixmap * pix, Colormap cmap);
#endif
/* imageComp.c */
Image *ImageCompress(Image * input, int ncolors, int noforce);
/* iprocess.c */
Image *ImageSmooth(Image * input);
Image *ImageSharpen(Image * input);
Image *ImageEdge(Image * input);
Image *ImageEmbose(Image * input);
Image *ImageInvert(Image * input);
Image *ImageOilPaint(Image * input);
Image *ImageAddNoise(Image * input);
Image *ImageSpread(Image * input);
Image *ImageBlend(Image * input);
Image *ImagePixelize(Image * input);
Image *ImageDespeckle(Image * input);
Image *ImageNormContrast(Image * input);
Image *ImageHistogram(Image * input);
Image *ImageSolarize(Image * input);
Image *ImageQuantize(Image * input);
Image *ImageGrey(Image * input);
Image *ImageTilt(Image * input);
Image *ImageDirectionalFilter(Image * input);
/* texture.c */
Image *draw_plasma(int w, int h);
Image *draw_landscape(int w, int h, int clouds);
#endif /* __IMAGE_H__ */
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