Dogcows Code - chaz/openbox/blob - otk/image.hh

   1 // -*- mode: C++; indent-tabs-mode: nil; c-basic-offset: 2; -*-
   2 #ifndef __image_hh
   3 #define __image_hh
   4
   5 extern "C" {
   6 #include <X11/Xlib.h>
   7 #include <X11/Xutil.h>
   8 }
   9
  10 #include <list>
  11
  12 #include "color.hh"
  13 #include "screeninfo.hh"
  14 #include "timer.hh"
  15
  16 namespace otk {
  17
  18 class ImageControl;
  19 class Texture;
  20 class ScreenInfo;
  21
  22 class Image {
  23 private:
  24   ImageControl *control;
  25   bool interlaced;
  26   XColor *colors;
  27
  28   Color from, to;
  29   int red_offset, green_offset, blue_offset, red_bits, green_bits, blue_bits,
  30     ncolors, cpc, cpccpc;
  31   unsigned char *red, *green, *blue, *red_table, *green_table, *blue_table;
  32   unsigned int width, height, *xtable, *ytable;
  33
  34   void TrueColorDither(unsigned int bit_depth, int bytes_per_line,
  35                        unsigned char *pixel_data);
  36   void PseudoColorDither(int bytes_per_line, unsigned char *pixel_data);
  37 #ifdef ORDEREDPSEUDO
  38   void OrderedPseudoColorDither(int bytes_per_line, unsigned char *pixel_data);
  39 #endif
  40
  41   Pixmap renderPixmap(void);
  42   Pixmap render_solid(const Texture &texture);
  43   Pixmap render_gradient(const Texture &texture);
  44
  45   XImage *renderXImage(void);
  46
  47   void invert(void);
  48   void bevel1(void);
  49   void bevel2(void);
  50   void border(const Texture &texture);
  51   void dgradient(void);
  52   void egradient(void);
  53   void hgradient(void);
  54   void pgradient(void);
  55   void rgradient(void);
  56   void vgradient(void);
  57   void cdgradient(void);
  58   void pcgradient(void);
  59
  60
  61 public:
  62   Image(ImageControl *c, int w, int h);
  63   ~Image(void);
  64
  65   Pixmap render(const Texture &texture);
  66 };
  67
  68
  69 class ImageControl {
  70 public:
  71 #ifndef SWIG
  72   struct CachedImage {
  73     Pixmap pixmap;
  74
  75     unsigned int count, width, height;
  76     unsigned long pixel1, pixel2, texture;
  77   };
  78 #endif
  79
  80   ImageControl(const otk::ScreenInfo *scrn,
  81                bool _dither= False, int _cpc = 4,
  82                unsigned long cache_timeout = 300000l,
  83                unsigned long cmax = 200l);
  84   virtual ~ImageControl(void);
  85
  86   inline bool doDither(void) { return dither; }
  87
  88   inline const ScreenInfo* getScreenInfo() const { return screeninfo; }
  89
  90   inline Window getDrawable(void) const { return window; }
  91
  92   inline Visual *getVisual(void) { return screeninfo->visual(); }
  93
  94   inline int getBitsPerPixel(void) const { return bits_per_pixel; }
  95   inline int getDepth(void) const { return screen_depth; }
  96   inline int getColorsPerChannel(void) const
  97     { return colors_per_channel; }
  98
  99   unsigned long getSqrt(unsigned int x);
 100
 101   Pixmap renderImage(unsigned int width, unsigned int height,
 102                      const Texture &texture);
 103
 104   void installRootColormap(void);
 105   void removeImage(Pixmap pixmap);
 106   void getColorTables(unsigned char **rmt, unsigned char **gmt,
 107                       unsigned char **bmt,
 108                       int *roff, int *goff, int *boff,
 109                       int *rbit, int *gbit, int *bbit);
 110   void getXColorTable(XColor **c, int *n);
 111   void getGradientBuffers(unsigned int w, unsigned int h,
 112                           unsigned int **xbuf, unsigned int **ybuf);
 113   void setDither(bool d) { dither = d; }
 114   void setColorsPerChannel(int cpc);
 115
 116   static void timeout(ImageControl *t);
 117
 118 private:
 119   bool dither;
 120   const ScreenInfo *screeninfo;
 121   Timer *timer;
 122
 123   Colormap colormap;
 124
 125   Window window;
 126   XColor *colors;
 127   int colors_per_channel, ncolors, screen_number, screen_depth,
 128     bits_per_pixel, red_offset, green_offset, blue_offset,
 129     red_bits, green_bits, blue_bits;
 130   unsigned char red_color_table[256], green_color_table[256],
 131     blue_color_table[256];
 132   unsigned int *grad_xbuffer, *grad_ybuffer, grad_buffer_width,
 133     grad_buffer_height;
 134   unsigned long *sqrt_table, cache_max;
 135
 136   typedef std::list<CachedImage> CacheContainer;
 137   CacheContainer cache;
 138
 139   Pixmap searchCache(const unsigned int width, const unsigned int height,
 140                      const unsigned long texture,
 141                      const Color &c1, const Color &c2);
 142 };
 143
 144 }
 145
 146 #endif // __image_hh
 147