M otk/pseudorendercontrol.cc → otk/pseudorendercontrol.cc

@@ -26,30 +26,26 @@ printf("Initializing PseudoColor RenderControl\n");
   const ScreenInfo *info = display->screenInfo(_screen);
   int depth = info->depth();
 
-  _bpc = 2; // XXX THIS SHOULD BE A USER OPTION
-  assert(_bpc >= 1);
-  _ncolors = 1 << (_bpc * 3);
+  // determine the number of colors and the bits-per-color
+  int bpc = 2; // XXX THIS SHOULD BE A USER OPTION
+  assert(bpc >= 1);
+  _ncolors = 1 << (bpc * 3);
 
   if (_ncolors > 1 << depth) {
     fprintf(stderr,
             _("PseudoRenderControl: Invalid colormap size. Resizing.\n"));
-    _bpc = 1 << (depth/3) >> 3;
-    _ncolors = 1 << (_bpc * 3);
-  }
-
-  _cpc = 1 << _bpc;
-  
-  if (!(_colors = new XColor[_ncolors])) {
-    fprintf(stderr,
-            _("PseudoRenderControl: error allocating colormap\n"));
-    ::exit(1);
+    bpc = 1 << (depth/3) >> 3;
+    _ncolors = 1 << (bpc * 3);
   }
 
   // build a color cube
+  _colors = new XColor[_ncolors];
+
+  int cpc = 1 << bpc; // colors per channel
   for (int n = _ncolors - 1,
-         r = (1 << (_bpc + 1)) -1, i = 0; i < _cpc; r >>= 1, ++i)
-    for (int g = (1 << (_bpc + 1)) -1, j = 0; j < _cpc; g >>= 1, ++j)
-      for (int b = (1 << (_bpc + 1)) -1, k = 0; k < _cpc; b >>= 1, ++k, --n) {
+         r = (1 << (bpc + 1)) -1, i = 0; i < cpc; r >>= 1, ++i)
+    for (int g = (1 << (bpc + 1)) -1, j = 0; j < cpc; g >>= 1, ++j)
+      for (int b = (1 << (bpc + 1)) -1, k = 0; k < cpc; b >>= 1, ++k, --n) {
         _colors[n].red = r | r << 8;
         _colors[n].green = g | g << 8;
         _colors[n].blue = b | b << 8;

M otk/pseudorendercontrol.hh → otk/pseudorendercontrol.hh

@@ -8,18 +8,8 @@ namespace otk {
 
 class PseudoRenderControl : public RenderControl {
 private:
-  // color tables, meaning, 256 (possibly) different shades of each color,
-  // based on the number of bits there are available for each color in the
-  // visual
-  unsigned char _red_color_table[256];
-  unsigned char _green_color_table[256];
-  unsigned char _blue_color_table[256];
-
-  int _cpc; // colors-per-channel: must be a value between [2,6]
-  int _bpp; // bits-per-pixel
-  int _ncolors; // number of allocated colors, size of the XColor array
-
-  XColor *_colors;
+  int _ncolors;    // number of allocated colors, size of the XColor array
+  XColor *_colors; // the valid allocated colors
   
   virtual void reduceDepth(Surface &sf, XImage *im) const;