From 0546172e3e690d508a90662645a1c4ad7b826e04 Mon Sep 17 00:00:00 2001
From: Vladimir 'phcoder' Serbinenko <phcoder@gmail.com>
Date: Mon, 29 Mar 2010 13:31:03 +0200
Subject: [PATCH] Basic thaana support

---
 font/font.c            | 20 ++++++++++++++++++++
 include/grub/unicode.h | 21 ++++++++++++++++-----
 2 files changed, 36 insertions(+), 5 deletions(-)

diff --git a/font/font.c b/font/font.c
index da3f0cc74..2eeadbbda 100644
--- a/font/font.c
+++ b/font/font.c
@@ -1259,6 +1259,7 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
 	case GRUB_UNICODE_COMB_ARABIC_SHADDA:
 	case GRUB_UNICODE_COMB_HEBREW_RAFE:
 	case GRUB_UNICODE_STACK_ABOVE:
+	stacked_above:
 	  space = combining_glyphs[i]->offset_y
 	    - grub_font_get_xheight (combining_glyphs[i]->font) - 1;
 	  if (space <= 0)
@@ -1291,6 +1292,7 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
 	  /* I don't know how ypogegrammeni differs from subscript. */
 	case GRUB_UNICODE_COMB_YPOGEGRAMMENI:
 	case GRUB_UNICODE_STACK_BELOW:
+	stacked_below:
 	  space = -(combining_glyphs[i]->offset_y 
 		    + combining_glyphs[i]->height);
 	  if (space <= 0)
@@ -1303,6 +1305,24 @@ blit_comb (const struct grub_unicode_glyph *glyph_id,
 	    min_devwidth = combining_glyphs[i]->width;
 	  break;
 
+	case GRUB_UNICODE_COMB_MN:
+	  switch (glyph_id->combining[i].code)
+	    {
+	    case GRUB_UNICODE_THAANA_ABAFILI:
+	    case GRUB_UNICODE_THAANA_AABAAFILI:
+	    case GRUB_UNICODE_THAANA_UBUFILI:
+	    case GRUB_UNICODE_THAANA_OOBOOFILI:
+	    case GRUB_UNICODE_THAANA_EBEFILI:
+	    case GRUB_UNICODE_THAANA_EYBEYFILI:
+	    case GRUB_UNICODE_THAANA_OBOFILI:
+	    case GRUB_UNICODE_THAANA_OABOAFILI:
+	    case GRUB_UNICODE_THAANA_SUKUN:
+	      goto stacked_above;
+	    case GRUB_UNICODE_THAANA_IBIFILI:
+	    case GRUB_UNICODE_THAANA_EEBEEFILI:
+	      goto stacked_below;	      
+	    }
+	  /* Fall through.  */
 	default:
 	  {
 	    /* Default handling. Just draw combining character on top
diff --git a/include/grub/unicode.h b/include/grub/unicode.h
index f5da907aa..2e08fb0d1 100644
--- a/include/grub/unicode.h
+++ b/include/grub/unicode.h
@@ -170,11 +170,22 @@ struct grub_unicode_glyph
 #define GRUB_UNICODE_VARIATION_SELECTOR_16 0xfe0f
 #define GRUB_UNICODE_VARIATION_SELECTOR_17 0xe0100
 #define GRUB_UNICODE_VARIATION_SELECTOR_256 0xe01ef
-#define GRUB_UNICODE_HEBREW_WAW  0x05d5
-#define GRUB_UNICODE_ZWNJ        0x200c
-#define GRUB_UNICODE_ZWJ         0x200d
-#define GRUB_UNICODE_ARABIC_START 0x600
-#define GRUB_UNICODE_ARABIC_END   0x700
+#define GRUB_UNICODE_HEBREW_WAW        0x05d5
+#define GRUB_UNICODE_ZWNJ              0x200c
+#define GRUB_UNICODE_ZWJ               0x200d
+#define GRUB_UNICODE_ARABIC_START      0x0600
+#define GRUB_UNICODE_ARABIC_END        0x0700
+#define GRUB_UNICODE_THAANA_ABAFILI    0x07a6
+#define GRUB_UNICODE_THAANA_AABAAFILI  0x07a7
+#define GRUB_UNICODE_THAANA_IBIFILI    0x07a8
+#define GRUB_UNICODE_THAANA_EEBEEFILI  0x07a9
+#define GRUB_UNICODE_THAANA_UBUFILI    0x07aa
+#define GRUB_UNICODE_THAANA_OOBOOFILI  0x07ab
+#define GRUB_UNICODE_THAANA_EBEFILI    0x07ac
+#define GRUB_UNICODE_THAANA_EYBEYFILI  0x07ad
+#define GRUB_UNICODE_THAANA_OBOFILI    0x07ae
+#define GRUB_UNICODE_THAANA_OABOAFILI  0x07af
+#define GRUB_UNICODE_THAANA_SUKUN      0x07b0
 
 extern struct grub_unicode_compact_range grub_unicode_compact[];
 extern struct grub_unicode_bidi_pair grub_unicode_bidi_pairs[];