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// Image.hh for Fluxbox Window Manager
// Copyright (c) 2001 - 2002 Henrik Kinnunen (fluxbox@linuxmail.org)
//
// Image.hh for Blackbox - an X11 Window manager
// Copyright (c) 1997 - 2000 Brad Hughes (bhughes@tcac.net)
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the "Software"),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense,
// and/or sell copies of the Software, and to permit persons to whom the
// Software is furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
// DEALINGS IN THE SOFTWARE.
// $Id: Image.hh,v 1.13 2002/09/14 15:03:32 fluxgen Exp $
#ifndef IMAGE_HH
#define IMAGE_HH
#include "Timer.hh"
#include "BaseDisplay.hh"
#include "Color.hh"
#include "Texture.hh"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <list>
class BImageControl;
/**
Renders to pixmap
*/
class BImage {
public:
BImage(BImageControl *ic, unsigned int, unsigned int);
~BImage();
/// render to pixmap
Pixmap render(const FbTk::Texture *src_texture);
/// render solid texture to pixmap
Pixmap renderSolid(const FbTk::Texture *src_texture);
/// render gradient texture to pixmap
Pixmap renderGradient(const FbTk::Texture *src_texture);
protected:
/**
Render to pixmap
@return rendered pixmap
*/
Pixmap renderPixmap();
/**
Render to XImage
@returns allocated and rendered XImage, user is responsible to deallocate
*/
XImage *renderXImage();
/**
@name render functions
*/
//@{
void invert();
void bevel1();
void bevel2();
void dgradient();
void egradient();
void hgradient();
void pgradient();
void rgradient();
void vgradient();
void cdgradient();
void pcgradient();
//@}
private:
BImageControl *control;
#ifdef INTERLACE
bool interlaced;
#endif // INTERLACE
XColor *colors; // color table
const FbTk::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;
};
/**
Holds screen info and color tables
*/
class BImageControl : public TimeoutHandler {
public:
BImageControl(BaseDisplay *disp, ScreenInfo *screen, bool = False, int = 4,
unsigned long = 300000l, unsigned long = 200l);
virtual ~BImageControl();
inline BaseDisplay *baseDisplay() { return basedisplay; }
inline bool doDither() { return dither; }
inline const Colormap &colormap() const { return m_colormap; }
inline const ScreenInfo *getScreenInfo() const { return screeninfo; }
inline Window drawable() const { return window; }
/// @return visual of screen
inline Visual *visual() { return screeninfo->getVisual(); }
/// @return Bits per pixel of screen
inline int bitsPerPixel() const { return bits_per_pixel; }
/// @return depth of screen
inline int depth() const { return screen_depth; }
inline int colorsPerChannel() const { return colors_per_channel; }
unsigned long getSqrt(unsigned int val);
/**
Render to pixmap
@param width width of pixmap
@param height height of pixmap
@param src_texture texture type to render
@return pixmap of the rendered image, on failure None
*/
Pixmap renderImage(unsigned int width, unsigned int height,
const FbTk::Texture *src_texture);
void installRootColormap();
void removeImage(Pixmap thepix);
void colorTables(unsigned char **, unsigned char **, unsigned char **,
int *, int *, int *, int *, int *, int *);
void getXColorTable(XColor **, int *);
void getGradientBuffers(unsigned int, unsigned int,
unsigned int **, unsigned int **);
void setDither(bool d) { dither = d; }
void setColorsPerChannel(int cpc);
void parseTexture(FbTk::Texture *ret_texture, const char *sval);
virtual void timeout();
protected:
/**
Search cache for a specific pixmap
@return None if no cache was found
*/
Pixmap searchCache(unsigned int width, unsigned int height, unsigned long texture_type,
const FbTk::Color &color, const FbTk::Color &color_to);
private:
bool dither;
BaseDisplay *basedisplay;
ScreenInfo *screeninfo;
#ifdef TIMEDCACHE
BTimer timer;
#endif // TIMEDCACHE
Colormap m_colormap;
Window window;
XColor *colors; ///< color table
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;
static unsigned long *sqrt_table; /// sqrt lookup table
typedef struct Cache {
Pixmap pixmap;
unsigned int count, width, height;
unsigned long pixel1, pixel2, texture;
} Cache;
unsigned long cache_max;
typedef std::list<Cache *> CacheList;
CacheList cache;
};
#endif // IMAGE_HH
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