[config] Add HB_NO_HINTING, enabled by HB_TINY

Disables HintingDevice tables and Anchors addressing contour points.

Part of https://github.com/harfbuzz/harfbuzz/issues/1652

src/hb-config.hh

@@ -58,7 +58,7 @@
 #define HB_NO_CFF
 #define HB_NO_COLOR
 #define HB_NO_GETENV
-#define HB_NO_OT_FONT_GLYPH_NAMES
+#define HB_NO_HINTING
 #define HB_NO_LANGUAGE_PRIVATE_SUBTAG
 #define HB_NO_LAYOUT_UNUSED
 #define HB_NO_MATH
@@ -66,6 +66,7 @@
 #define HB_NO_NAME
 #define HB_NO_OPEN
 #define HB_NO_SETLOCALE
+#define HB_NO_OT_FONT_GLYPH_NAMES
 #define HB_NO_OT_SHAPE_FRACTIONS
 #define HB_NO_STAT
 #define HB_NO_SUBSET_LAYOUT

src/hb-ot-layout-common.hh

@@ -2166,8 +2166,10 @@ struct Device
   {
     switch (u.b.format)
     {
+#ifndef HB_NO_HINTING
     case 1: case 2: case 3:
       return u.hinting.get_x_delta (font);
+#endif
 #ifndef HB_NO_VAR
     case 0x8000:
       return u.variation.get_x_delta (font, store);
@@ -2181,7 +2183,9 @@ struct Device
     switch (u.b.format)
     {
     case 1: case 2: case 3:
+#ifndef HB_NO_HINTING
       return u.hinting.get_y_delta (font);
+#endif
 #ifndef HB_NO_VAR
     case 0x8000:
       return u.variation.get_y_delta (font, store);
@@ -2196,8 +2200,10 @@ struct Device
     TRACE_SANITIZE (this);
     if (!u.b.format.sanitize (c)) return_trace (false);
     switch (u.b.format) {
+#ifndef HB_NO_HINTING
     case 1: case 2: case 3:
       return_trace (u.hinting.sanitize (c));
+#endif
 #ifndef HB_NO_VAR
     case 0x8000:
       return_trace (u.variation.sanitize (c));

src/hb-ot-layout-gpos-table.hh

@@ -267,6 +267,13 @@ struct AnchorFormat2
 		   float *x, float *y) const
   {
     hb_font_t *font = c->font;
+
+#ifdef HB_NO_HINTING
+    *x = font->em_fscale_x (xCoordinate);
+    *y = font->em_fscale_y (yCoordinate);
+    return;
+#endif
+
     unsigned int x_ppem = font->x_ppem;
     unsigned int y_ppem = font->y_ppem;
     hb_position_t cx = 0, cy = 0;