From 85c41a1aec90b8daefc425596ea34b6f9d0e643c Mon Sep 17 00:00:00 2001
From: Marius Nita <marius@cs.pdx.edu>
Date: Fri, 1 Nov 2002 03:27:41 +0000
Subject: adding toolkit beginnings

---
 otk/image.hh | 144 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 144 insertions(+)
 create mode 100644 otk/image.hh

(limited to 'otk/image.hh')

diff --git a/otk/image.hh b/otk/image.hh
new file mode 100644
index 00000000..85ad287d
--- /dev/null
+++ b/otk/image.hh
@@ -0,0 +1,144 @@
+// -*- mode: C++; indent-tabs-mode: nil; -*-
+#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 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);
+  Pixmap render_solid(const BTexture &texture);
+  Pixmap render_gradient(const BTexture &texture);
+
+  XImage *renderXImage(void);
+
+  void invert(void);
+  void bevel1(void);
+  void bevel2(void);
+  void border(const BTexture &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:
+  BImage(BImageControl *c, int w, int h);
+  ~BImage(void);
+
+  Pixmap render(const BTexture &texture);
+};
+
+
+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;
+  BTimer *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 BColor &c1, const BColor &c2);
+};
+
+
+#endif // __Image_hh
+
-- 
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