First commit - moving from LuaForge to SourceForge

1 files changed, 75 insertions, 0 deletions

diff --git a/src/old_imcolor.c b/src/old_imcolor.c
new file mode 100644
index 0000000..0c6b353
--- /dev/null
+++ b/src/old_imcolor.c
@@ -0,0 +1,75 @@
+/** \file
+ * \brief Old resize/stretch functions
+ *
+ * See Copyright Notice in im_lib.h
+ * $Id: old_imcolor.c,v 1.1 2008/10/17 06:10:16 scuri Exp $
+ */
+
+#include "old_im.h"
+#include "im.h"
+#include "im_util.h"
+#include "im_image.h"
+#include "im_convert.h"
+
+void imRGB2Map(int width, int height, 
+              unsigned char *red, unsigned char *green, unsigned char *blue, 
+              unsigned char *map, int palette_count, long *palette)
+{
+  imConvertRGB2Map(width, height, 
+                   red,  green, blue, 
+                   map, palette, &palette_count);
+}
+
+void imMap2RGB(int width, int height, unsigned char *map, int palette_count, long *palette, unsigned char *red, unsigned char *green, unsigned char *blue)
+{
+  int i, count, c, index;
+  unsigned char r[256], g[256], b[256];
+
+  for (c = 0; c < palette_count; c++)
+    imColorDecode(&r[c], &g[c], &b[c], palette[c]);
+
+  count = width*height;
+  for (i = 0; i < count; i++)
+  {
+    index = *map++;
+    *red++ = r[index];
+    *green++ = g[index];
+    *blue++ = b[index];
+  }
+}
+
+void imRGB2Gray(int width, int height, unsigned char *red, unsigned char *green, unsigned char *blue, unsigned char *map, long *grays)
+{
+  int i, count, c;
+
+  for (c = 0; c < 256; c++)
+    *grays++ = imColorEncode((unsigned char)c, (unsigned char)c, (unsigned char)c);
+
+  count = width*height;
+  for (i = 0; i < count; i++)
+  {
+    *map++ = (unsigned char)((*red++ * 30 + *green++ * 59 + *blue++ * 11) / 100);
+  }
+}
+
+void imMap2Gray(int width, int height, unsigned char *map, int palette_count, long *palette, unsigned char *gray_map, long *grays)
+{
+  int i, count, c;
+  unsigned char cnv_table[256];
+  unsigned char r, g, b;
+
+  for (c = 0; c < 256; c++)
+    *grays++ = imColorEncode((unsigned char)c, (unsigned char)c, (unsigned char)c);
+
+  for (c = 0; c < palette_count; c++)
+  {
+    imColorDecode(&r, &g, &b, palette[c]);
+    cnv_table[c] = (unsigned char)((r * 30 + g * 59 + b * 11) / 100);
+  }
+
+  count = width*height;
+  for (i = 0; i < count; i++)
+  {
+    *gray_map++ = cnv_table[*map++];
+  }
+}