1 // -*- mode: C++; indent-tabs-mode: nil; -*-
13 #include "screeninfo.hh"
14 #include "src/timer.hh"
24 BImageControl *control;
29 int red_offset, green_offset, blue_offset, red_bits, green_bits, blue_bits,
31 unsigned char *red, *green, *blue, *red_table, *green_table, *blue_table;
32 unsigned int width, height, *xtable, *ytable;
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);
38 void OrderedPseudoColorDither(int bytes_per_line, unsigned char *pixel_data);
41 Pixmap renderPixmap(void);
42 Pixmap render_solid(const BTexture &texture);
43 Pixmap render_gradient(const BTexture &texture);
45 XImage *renderXImage(void);
50 void border(const BTexture &texture);
57 void cdgradient(void);
58 void pcgradient(void);
62 BImage(BImageControl *c, int w, int h);
65 Pixmap render(const BTexture &texture);
69 class BImageControl : public ob::TimeoutHandler {
74 unsigned int count, width, height;
75 unsigned long pixel1, pixel2, texture;
78 BImageControl(const ScreenInfo *scrn,
79 bool _dither= False, int _cpc = 4,
80 unsigned long cache_timeout = 300000l,
81 unsigned long cmax = 200l);
82 virtual ~BImageControl(void);
84 inline bool doDither(void) { return dither; }
86 inline const ScreenInfo* getScreenInfo() const { return screeninfo; }
88 inline Window getDrawable(void) const { return window; }
90 inline Visual *getVisual(void) { return screeninfo->getVisual(); }
92 inline int getBitsPerPixel(void) const { return bits_per_pixel; }
93 inline int getDepth(void) const { return screen_depth; }
94 inline int getColorsPerChannel(void) const
95 { return colors_per_channel; }
97 unsigned long getSqrt(unsigned int x);
99 Pixmap renderImage(unsigned int width, unsigned int height,
100 const BTexture &texture);
102 void installRootColormap(void);
103 void removeImage(Pixmap pixmap);
104 void getColorTables(unsigned char **rmt, unsigned char **gmt,
106 int *roff, int *goff, int *boff,
107 int *rbit, int *gbit, int *bbit);
108 void getXColorTable(XColor **c, int *n);
109 void getGradientBuffers(unsigned int w, unsigned int h,
110 unsigned int **xbuf, unsigned int **ybuf);
111 void setDither(bool d) { dither = d; }
112 void setColorsPerChannel(int cpc);
114 virtual void timeout(void);
118 const ScreenInfo *screeninfo;
125 int colors_per_channel, ncolors, screen_number, screen_depth,
126 bits_per_pixel, red_offset, green_offset, blue_offset,
127 red_bits, green_bits, blue_bits;
128 unsigned char red_color_table[256], green_color_table[256],
129 blue_color_table[256];
130 unsigned int *grad_xbuffer, *grad_ybuffer, grad_buffer_width,
132 unsigned long *sqrt_table, cache_max;
134 typedef std::list<CachedImage> CacheContainer;
135 CacheContainer cache;
137 Pixmap searchCache(const unsigned int width, const unsigned int height,
138 const unsigned long texture,
139 const BColor &c1, const BColor &c2);