openbox/otk/image.hh

147 lines
3.8 KiB
C++

// -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
#ifndef __image_hh
#define __image_hh
extern "C" {
#include <X11/Xlib.h>
#include <X11/Xutil.h>
}
#include <list>
#include "color.hh"
#include "screeninfo.hh"
#include "timer.hh"
namespace otk {
class ImageControl;
class Texture;
class ScreenInfo;
class Image {
private:
ImageControl *control;
bool interlaced;
XColor *colors;
Color from, to;
int red_offset, green_offset, blue_offset, red_bits, green_bits, blue_bits,
ncolors, cpc, cpccpc;
unsigned char *red, *green, *blue, *red_table, *green_table, *blue_table;
unsigned int width, height, *xtable, *ytable;
void TrueColorDither(unsigned int bit_depth, int bytes_per_line,
unsigned char *pixel_data);
void PseudoColorDither(int bytes_per_line, unsigned char *pixel_data);
#ifdef ORDEREDPSEUDO
void OrderedPseudoColorDither(int bytes_per_line, unsigned char *pixel_data);
#endif
Pixmap renderPixmap(void);
Pixmap render_solid(const Texture &texture);
Pixmap render_gradient(const Texture &texture);
XImage *renderXImage(void);
void invert(void);
void bevel1(void);
void bevel2(void);
void border(const Texture &texture);
void dgradient(void);
void egradient(void);
void hgradient(void);
void pgradient(void);
void rgradient(void);
void vgradient(void);
void cdgradient(void);
void pcgradient(void);
public:
Image(ImageControl *c, int w, int h);
~Image(void);
Pixmap render(const Texture &texture);
};
class ImageControl {
public:
#ifndef SWIG
struct CachedImage {
Pixmap pixmap;
unsigned int count, width, height;
unsigned long pixel1, pixel2, texture;
};
#endif
ImageControl(const otk::ScreenInfo *scrn,
bool _dither= False, int _cpc = 4,
unsigned long cache_timeout = 300000l,
unsigned long cmax = 200l);
virtual ~ImageControl(void);
inline bool doDither(void) { return dither; }
inline const ScreenInfo* getScreenInfo() const { return screeninfo; }
inline Window getDrawable(void) const { return window; }
inline Visual *getVisual(void) { return screeninfo->visual(); }
inline int getBitsPerPixel(void) const { return bits_per_pixel; }
inline int getDepth(void) const { return screen_depth; }
inline int getColorsPerChannel(void) const
{ return colors_per_channel; }
unsigned long getSqrt(unsigned int x);
Pixmap renderImage(unsigned int width, unsigned int height,
const Texture &texture);
void installRootColormap(void);
void removeImage(Pixmap pixmap);
void getColorTables(unsigned char **rmt, unsigned char **gmt,
unsigned char **bmt,
int *roff, int *goff, int *boff,
int *rbit, int *gbit, int *bbit);
void getXColorTable(XColor **c, int *n);
void getGradientBuffers(unsigned int w, unsigned int h,
unsigned int **xbuf, unsigned int **ybuf);
void setDither(bool d) { dither = d; }
void setColorsPerChannel(int cpc);
static void timeout(ImageControl *t);
private:
bool dither;
const ScreenInfo *screeninfo;
Timer *timer;
Colormap colormap;
Window window;
XColor *colors;
int colors_per_channel, ncolors, screen_number, screen_depth,
bits_per_pixel, red_offset, green_offset, blue_offset,
red_bits, green_bits, blue_bits;
unsigned char red_color_table[256], green_color_table[256],
blue_color_table[256];
unsigned int *grad_xbuffer, *grad_ybuffer, grad_buffer_width,
grad_buffer_height;
unsigned long *sqrt_table, cache_max;
typedef std::list<CachedImage> CacheContainer;
CacheContainer cache;
Pixmap searchCache(const unsigned int width, const unsigned int height,
const unsigned long texture,
const Color &c1, const Color &c2);
};
}
#endif // __image_hh