[config] Remove tables from hb_face_t for disabled features

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

src/Makefile.sources

@@ -64,6 +64,7 @@ HB_BASE_sources = \
 	hb-ot-color.cc \
 	hb-ot-face.cc \
 	hb-ot-face.hh \
+	hb-ot-face-table-list.hh \
 	hb-ot-font.cc \
 	hb-ot-gasp-table.hh \
 	hb-ot-glyf-table.hh \

src/hb-ot-face-table-list.hh

@@ -0,0 +1,112 @@
+/*
+ * Copyright © 2007,2008,2009  Red Hat, Inc.
+ * Copyright © 2012,2013  Google, Inc.
+ * Copyright © 2019, Facebook Inc.
+ *
+ *  This is part of HarfBuzz, a text shaping library.
+ *
+ * Permission is hereby granted, without written agreement and without
+ * license or royalty fees, to use, copy, modify, and distribute this
+ * software and its documentation for any purpose, provided that the
+ * above copyright notice and the following two paragraphs appear in
+ * all copies of this software.
+ *
+ * IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE TO ANY PARTY FOR
+ * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
+ * ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF THE COPYRIGHT HOLDER HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * THE COPYRIGHT HOLDER SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING,
+ * BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS FOR A PARTICULAR PURPOSE.  THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND THE COPYRIGHT HOLDER HAS NO OBLIGATION TO
+ * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+ *
+ * Red Hat Author(s): Behdad Esfahbod
+ * Google Author(s): Behdad Esfahbod
+ * Facebook Author(s): Behdad Esfahbod
+ */
+
+#ifndef HB_FACE_TABLE_LIST_HH
+#define HB_FACE_TABLE_LIST_HH
+#endif /* HB_FACE_TABLE_LIST_HH */ /* Dummy header guards */
+
+#ifndef HB_OT_ACCELERATOR
+#define HB_OT_ACCELERATOR(Namespace, Type) HB_OT_TABLE (Namespace, Type)
+#define _HB_OT_ACCELERATOR_UNDEF
+#endif
+
+
+/* This lists font tables that the hb_face_t will contain and lazily
+ * load.  Don't add a table unless it's used though.  This is not
+ * exactly free. */
+
+/* v--- Add new tables in the right place here. */
+
+
+/* OpenType fundamentals. */
+HB_OT_TABLE (OT, head)
+HB_OT_ACCELERATOR (OT, cmap)
+HB_OT_ACCELERATOR (OT, hmtx)
+HB_OT_ACCELERATOR (OT, post)
+HB_OT_TABLE (OT, kern)
+HB_OT_ACCELERATOR (OT, name)
+HB_OT_TABLE (OT, OS2)
+HB_OT_TABLE (OT, STAT)
+
+/* Vertical layout. */
+HB_OT_ACCELERATOR (OT, vmtx)
+
+/* TrueType outlines. */
+HB_OT_ACCELERATOR (OT, glyf)
+
+/* CFF outlines. */
+#ifndef HB_NO_CFF
+HB_OT_ACCELERATOR (OT, cff1)
+HB_OT_ACCELERATOR (OT, cff2)
+HB_OT_TABLE (OT, VORG)
+#endif
+
+/* OpenType variations. */
+HB_OT_TABLE (OT, fvar)
+HB_OT_TABLE (OT, avar)
+HB_OT_TABLE (OT, MVAR)
+
+/* OpenType shaping. */
+HB_OT_ACCELERATOR (OT, GDEF)
+HB_OT_ACCELERATOR (OT, GSUB)
+HB_OT_ACCELERATOR (OT, GPOS)
+//HB_OT_TABLE (OT, BASE)
+//HB_OT_TABLE (OT, JSTF)
+
+/* AAT shaping. */
+#ifndef HB_NO_AAT
+HB_OT_TABLE (AAT, morx)
+HB_OT_TABLE (AAT, mort)
+HB_OT_TABLE (AAT, kerx)
+HB_OT_TABLE (AAT, ankr)
+HB_OT_TABLE (AAT, trak)
+HB_OT_TABLE (AAT, lcar)
+HB_OT_TABLE (AAT, ltag)
+HB_OT_TABLE (AAT, feat)
+#endif
+
+/* OpenType color fonts. */
+#ifndef HB_NO_COLOR
+HB_OT_TABLE (OT, COLR)
+HB_OT_TABLE (OT, CPAL)
+HB_OT_ACCELERATOR (OT, CBDT)
+HB_OT_ACCELERATOR (OT, sbix)
+HB_OT_ACCELERATOR (OT, SVG)
+#endif
+
+/* OpenType math. */
+#ifndef HB_NO_MATH
+HB_OT_TABLE (OT, MATH)
+#endif
+
+
+#ifdef _HB_OT_ACCELERATOR_UNDEF
+#undef HB_OT_ACCELERATOR
+#endif

src/hb-ot-face.cc

@@ -46,16 +46,12 @@ void hb_ot_face_t::init0 (hb_face_t *face)
 {
   this->face = face;
 #define HB_OT_TABLE(Namespace, Type) Type.init0 ();
-#define HB_OT_ACCELERATOR(Namespace, Type) HB_OT_TABLE (Namespace, Type)
+#include "hb-ot-face-table-list.hh"
-  HB_OT_TABLES
-#undef HB_OT_ACCELERATOR
 #undef HB_OT_TABLE
 }
 void hb_ot_face_t::fini ()
 {
 #define HB_OT_TABLE(Namespace, Type) Type.fini ();
-#define HB_OT_ACCELERATOR(Namespace, Type) HB_OT_TABLE (Namespace, Type)
+#include "hb-ot-face-table-list.hh"
-  HB_OT_TABLES
-#undef HB_OT_ACCELERATOR
 #undef HB_OT_TABLE
 }

src/hb-ot-face.hh

@@ -38,54 +38,10 @@
  * hb_ot_face_t
  */
 
-#define HB_OT_TABLES \
-    /* OpenType fundamentals. */ \
-    HB_OT_TABLE(OT, head) \
-    HB_OT_ACCELERATOR(OT, cmap) \
-    HB_OT_ACCELERATOR(OT, hmtx) \
-    HB_OT_ACCELERATOR(OT, vmtx) \
-    HB_OT_ACCELERATOR(OT, post) \
-    HB_OT_TABLE(OT, kern) \
-    HB_OT_ACCELERATOR(OT, glyf) \
-    HB_OT_ACCELERATOR(OT, cff1) \
-    HB_OT_ACCELERATOR(OT, cff2) \
-    HB_OT_TABLE(OT, VORG) \
-    HB_OT_ACCELERATOR(OT, name) \
-    HB_OT_TABLE(OT, OS2) \
-    HB_OT_TABLE(OT, STAT) \
-    /* OpenType shaping. */ \
-    HB_OT_ACCELERATOR(OT, GDEF) \
-    HB_OT_ACCELERATOR(OT, GSUB) \
-    HB_OT_ACCELERATOR(OT, GPOS) \
-    HB_OT_TABLE(OT, BASE) \
-    HB_OT_TABLE(OT, JSTF) \
-    /* AAT shaping. */ \
-    HB_OT_TABLE(AAT, mort) \
-    HB_OT_TABLE(AAT, morx) \
-    HB_OT_TABLE(AAT, kerx) \
-    HB_OT_TABLE(AAT, ankr) \
-    HB_OT_TABLE(AAT, trak) \
-    HB_OT_TABLE(AAT, lcar) \
-    HB_OT_TABLE(AAT, ltag) \
-    HB_OT_TABLE(AAT, feat) \
-    /* OpenType variations. */ \
-    HB_OT_TABLE(OT, fvar) \
-    HB_OT_TABLE(OT, avar) \
-    HB_OT_TABLE(OT, MVAR) \
-    /* OpenType math. */ \
-    HB_OT_TABLE(OT, MATH) \
-    /* OpenType color fonts. */ \
-    HB_OT_TABLE(OT, COLR) \
-    HB_OT_TABLE(OT, CPAL) \
-    HB_OT_ACCELERATOR(OT, CBDT) \
-    HB_OT_ACCELERATOR(OT, sbix) \
-    HB_OT_ACCELERATOR(OT, SVG) \
-    /* */
-
 /* Declare tables. */
 #define HB_OT_TABLE(Namespace, Type) namespace Namespace { struct Type; }
 #define HB_OT_ACCELERATOR(Namespace, Type) HB_OT_TABLE (Namespace, Type##_accelerator_t)
-HB_OT_TABLES
+#include "hb-ot-face-table-list.hh"
 #undef HB_OT_ACCELERATOR
 #undef HB_OT_TABLE
 
@@ -100,9 +56,7 @@ struct hb_ot_face_t
   {
     ORDER_ZERO,
 #define HB_OT_TABLE(Namespace, Type) HB_OT_TABLE_ORDER (Namespace, Type),
-#define HB_OT_ACCELERATOR(Namespace, Type) HB_OT_TABLE (Namespace, Type)
+#include "hb-ot-face-table-list.hh"
-    HB_OT_TABLES
-#undef HB_OT_ACCELERATOR
 #undef HB_OT_TABLE
   };
 
@@ -111,7 +65,7 @@ struct hb_ot_face_t
   hb_table_lazy_loader_t<Namespace::Type, HB_OT_TABLE_ORDER (Namespace, Type)> Type;
 #define HB_OT_ACCELERATOR(Namespace, Type) \
   hb_face_lazy_loader_t<Namespace::Type##_accelerator_t, HB_OT_TABLE_ORDER (Namespace, Type)> Type;
-  HB_OT_TABLES
+#include "hb-ot-face-table-list.hh"
 #undef HB_OT_ACCELERATOR
 #undef HB_OT_TABLE
 };

src/hb-ot-layout.cc

@@ -367,8 +367,10 @@ hb_ot_layout_get_ligature_carets (hb_font_t      *font,
   {
     if (caret_count) *caret_count = result_caret_count;
   }
+#ifndef HB_NO_AAT
   else
     result = font->face->table.lcar->get_lig_carets (font, direction, glyph, start_offset, caret_count, caret_array);
+#endif
   return result;
 }
 #endif