src/Image.hh (raw)
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// -*- mode: C++; indent-tabs-mode: nil; -*- // Image.hh for Blackbox - an X11 Window manager // Copyright (c) 2001 - 2002 Sean 'Shaleh' Perry <shaleh@debian.org> // 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. #ifndef __Image_hh #define __Image_hh extern "C" { #include <X11/Xlib.h> #include <X11/Xutil.h> } #include <list> #include "Timer.hh" #include "BaseDisplay.hh" #include "Color.hh" class BImageControl; class BTexture; class BImageCache; class BImage { private: BImageControl *control; bool interlaced; XColor *colors; BColor 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); XImage *renderXImage(void); void invert(void); void bevel1(void); void bevel2(void); 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: BImage(BImageControl *c, unsigned int w, unsigned int h); ~BImage(void); Pixmap render(const BTexture &texture); Pixmap render_solid(const BTexture &texture); Pixmap render_gradient(const BTexture &texture); // static methods for the builtin cache static unsigned long maximumCacheSize(void); static void setMaximumCacheSize(const unsigned long cache_max); static unsigned long cacheTimeout(void); static void setCacheTimeout(const unsigned long cache_timeout); private: // global image cache static BImageCache *imagecache; }; class BImageControl : public TimeoutHandler { public: struct CachedImage { Pixmap pixmap; unsigned int count, width, height; unsigned long pixel1, pixel2, texture; }; BImageControl(BaseDisplay *dpy, const ScreenInfo *scrn, bool _dither= False, int _cpc = 4, unsigned long cache_timeout = 300000l, unsigned long cmax = 200l); virtual ~BImageControl(void); inline BaseDisplay *getBaseDisplay(void) const { return basedisplay; } inline bool doDither(void) { return dither; } inline const ScreenInfo *getScreenInfo(void) { return screeninfo; } inline Window getDrawable(void) const { return window; } inline Visual *getVisual(void) { return screeninfo->getVisual(); } 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 BTexture &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); virtual void timeout(void); private: bool dither; BaseDisplay *basedisplay; const ScreenInfo *screeninfo; #ifdef TIMEDCACHE BTimer *timer; #endif // TIMEDCACHE 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 BColor &c1, const BColor &c2); }; #endif // __Image_hh |