offsets in planar surfaces

[chaz/openbox] / otk / pseudorendercontrol.cc

diff --git a/otk/pseudorendercontrol.cc b/otk/pseudorendercontrol.cc
index 89e95ab6eec20b327ba4841b66f39eb59d576da4..cf9929248586e4e2c12d0b002eba771bcfb610fe 100644 (file)
--- a/otk/pseudorendercontrol.cc
+++ b/otk/pseudorendercontrol.cc
@@ -9,14 +9,12 @@
 #include "rendertexture.hh"
 
 extern "C" {
-#ifdef    HAVE_STDLIB_H
-#  include <stdlib.h>
-#endif // HAVE_STDLIB_H
-
 #include "../src/gettext.h"
 #define _(str) gettext(str)
 }
 
+#include <cstdlib>
+
 namespace otk {
 
 PseudoRenderControl::PseudoRenderControl(int screen)
@@ -93,9 +91,8 @@ int tr, tg, tb;
       _colors[i].pixel = icolors[close].pixel;
 
       // try alloc this closest color, it had better succeed!
-      if (XAllocColor(**display, info->colormap(), &_colors[i])) {
+      if (XAllocColor(**display, info->colormap(), &_colors[i]))
         _colors[i].flags = DoRed|DoGreen|DoBlue; // mark as alloced
-      }
       else
         assert(false); // wtf has gone wrong, its already alloced for chissake!
     }
@@ -114,25 +111,47 @@ PseudoRenderControl::~PseudoRenderControl()
   delete [] _colors;
 }
 
+inline const XColor *PseudoRenderControl::pickColor(int r, int g, int b) const
+{
+  r = (r & 0xff) >> (8-_bpc);
+  g = (g & 0xff) >> (8-_bpc);
+  b = (b & 0xff) >> (8-_bpc);
+  return &_colors[(r << (2*_bpc)) + (g << (1*_bpc)) + b];
+}
+
 void PseudoRenderControl::reduceDepth(Surface &sf, XImage *im) const
 {
   pixel32 *data = sf.pixelData();
-  char *p = (char *)data;
-  int x, y, r, g, b;
-    for (y = 0; y < im->height; y++) {
-      for (x = 0; x < im->width; x++) {
-        r = (data[x] >> default_red_shift) & 0xFF;
-        r = r >> (8-_bpc);
-        g = (data[x] >> default_green_shift) & 0xFF;
-        g = g >> (8-_bpc);
-        b = (data[x] >> default_blue_shift) & 0xFF;
-        b = b >> (8-_bpc);
-        p[x] = _colors[(r << (2*_bpc)) + (g << (1*_bpc)) + b].pixel;
-      }
-      data += im->width;
-      p += im->bytes_per_line;
+  pixel32 *ret = (pixel32*)malloc(im->width * im->height * 4);
+  char *p = (char *)ret;
+  int x, y;
+  for (y = 0; y < im->height; y++) {
+    for (x = 0; x < im->width; x++) {
+      p[x] = pickColor(data[x] >> default_red_shift,
+                       data[x] >> default_green_shift,
+                       data[x] >> default_blue_shift)->pixel;
     }
+    data += im->width;
+    p += im->bytes_per_line;
+  }
+  im->data = (char*)ret;
+}
+
+void PseudoRenderControl::allocateColor(XColor *color) const
+{
+  const XColor *c = pickColor(color->red, color->blue, color->green);
+
+  color->red = c->red;
+  color->green = c->green;
+  color->blue = c->blue;
+  color->pixel = c->pixel;
+
+  if (XAllocColor(**display, display->screenInfo(_screen)->colormap(), color))
+    color->flags = DoRed|DoGreen|DoBlue; // mark as alloced
+  else
+    assert(false); // wtf has gone wrong, its already alloced for chissake!
 
+  return;
 }
 
 }