Merging IS branch: New customization code and its use for images.

[libucw.git] / lib / custom.c

diff --git a/lib/custom.c b/lib/custom.c
index cba8412a2f647441f36ed1e56e384461d905aa77..a1aec75f5e25e390246d4b1b40e62f13c04a3820 100644 (file)
--- a/lib/custom.c
+++ b/lib/custom.c
@@ -9,8 +9,97 @@
 
 #include <stdlib.h>
 
+#ifdef CONFIG_IMAGES
+
+void
+custom_create_attrs(struct odes *odes, struct card_attr *ca)
+{
+  byte *x;
+  uns ox, oy, tw, th, ncolors;
+  uns ifmt, isize, icol;
+  byte ocspace[10];
+  byte *ctype;
+
+  x = obj_find_aval(odes, 'G');
+  ctype = obj_find_aval(odes, 'T');
+  if (!x || !ctype || sscanf(x, "%d%d%s%d%d%d", &ox, &oy, ocspace, &ncolors, &tw, &th) != 6)
+    {
+      ca->image_flags = 0;
+      return;
+    }
+
+  if (!strcasecmp(ctype, "image/jpeg"))
+    ifmt = 1;
+  else if (!strcasecmp(ctype, "image/png"))
+    ifmt = 2;
+  else if (!strcasecmp(ctype, "image/gif"))
+    ifmt = 3;
+  else
+    {
+      log(L_ERROR, "Unknown image content-type: %s", ctype);
+      ifmt = 0;
+    }
+
+  if (ox <= 100 && oy <= 100)
+    isize = 0;
+  else if (ox <= 320 && oy <= 200)
+    isize = 1;
+  else if (ox <= 640 && oy <= 480)
+    isize = 2;
+  else
+    isize = 3;
+
+  if (!strcasecmp(ocspace, "GRAY"))
+    icol = 0;
+  else if (ncolors <= 16)
+    icol = 1;
+  else if (ncolors <= 256)
+    icol = 2;
+  else
+    icol = 3;
+
+  ca->image_flags = ifmt | (isize << 2) | (icol << 4);
+}
+
+byte *
+custom_it_parse(u32 *dest, byte *value, uns intval)
+{
+  if (value)
+    return "IMGTYPE: number expected";
+  if (intval > 3)
+    return "IMGTYPE out of range";
+  *dest = intval;
+  return NULL;
+}
+
+byte *
+custom_is_parse(u32 *dest, byte *value, uns intval)
+{
+  if (value)
+    return "IMGSIZE: number expected";
+  if (intval > 3)
+    return "IMGSIZE out of range";
+  *dest = intval;
+  return NULL;
+}
+
+byte *
+custom_ic_parse(u32 *dest, byte *value, uns intval)
+{
+  if (value)
+    return "IMGCOLORS: number expected";
+  if (intval > 3)
+    return "IMGCOLORS out of range";
+  *dest = intval;
+  return NULL;
+}
+
+#endif
+
 #if 0          /* Example */
 
+/* FIXME: The example is wrong */
+
 void
 custom_get_lm(struct card_attr *ca, byte *attr)
 {