hb-ot-layout-gsubgpos-private.hh \
hb-ot-layout-gsub-table.hh \
hb-ot-layout-jstf-table.hh \
+ hb-ot-layout-math-table.hh \
hb-ot-layout-private.hh \
hb-ot-map.cc \
hb-ot-map-private.hh \
--- /dev/null
+/*
+ * Copyright © 2016 Igalia S.L.
+ *
+ * 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.
+ *
+ * Igalia Author(s): Frédéric Wang
+ */
+
+#ifndef HB_OT_LAYOUT_MATH_TABLE_HH
+#define HB_OT_LAYOUT_MATH_TABLE_HH
+
+#include "hb-open-type-private.hh"
+#include "hb-ot-layout-common-private.hh"
+
+namespace OT {
+
+/*
+ * MATH -- The MATH Table
+ */
+
+struct MATH
+{
+ static const hb_tag_t tableTag = HB_OT_TAG_MATH;
+
+ inline bool sanitize (hb_sanitize_context_t *c) const
+ {
+ TRACE_SANITIZE (this);
+ return_trace (version.sanitize (c) &&
+ likely (version.major == 1));
+ }
+
+protected:
+ FixedVersion<>version; /* Version of the MATH table
+ initially set to 0x00010000u */
+public:
+ DEFINE_SIZE_STATIC (4);
+};
+
+} /* mathspace OT */
+
+
+#endif /* HB_OT_LAYOUT_MATH_TABLE_HH */
struct GDEF;
struct GSUB;
struct GPOS;
+ struct MATH;
}
struct hb_ot_layout_lookup_accelerator_t
hb_blob_t *gdef_blob;
hb_blob_t *gsub_blob;
hb_blob_t *gpos_blob;
+ hb_blob_t *math_blob;
const struct OT::GDEF *gdef;
const struct OT::GSUB *gsub;
const struct OT::GPOS *gpos;
+ const struct OT::MATH *math;
unsigned int gsub_lookup_count;
unsigned int gpos_lookup_count;
#include "hb-ot-layout-gsub-table.hh"
#include "hb-ot-layout-gpos-table.hh"
#include "hb-ot-layout-jstf-table.hh"
+#include "hb-ot-layout-math-table.hh"
#include "hb-ot-map-private.hh"
layout->gpos_blob = OT::Sanitizer<OT::GPOS>::sanitize (face->reference_table (HB_OT_TAG_GPOS));
layout->gpos = OT::Sanitizer<OT::GPOS>::lock_instance (layout->gpos_blob);
+ // The MATH table is rarer so we only try and load it in _get_math
+ layout->math_blob = NULL;
+ layout->math = NULL;
+
{
/*
* The ugly business of blacklisting individual fonts' tables happen here!
hb_blob_destroy (layout->gsub_blob);
hb_blob_destroy (layout->gpos_blob);
+ if (layout->math_blob) hb_blob_destroy (layout->math_blob);
+
free (layout);
}
if (unlikely (!hb_ot_shaper_face_data_ensure (face))) return OT::Null(OT::GPOS);
return *hb_ot_layout_from_face (face)->gpos;
}
+static inline const OT::MATH&
+_get_math (hb_face_t *face)
+{
+ if (unlikely (!hb_ot_shaper_face_data_ensure (face))) return OT::Null(OT::MATH);
+
+ hb_ot_layout_t * layout = hb_ot_layout_from_face (face);
+
+ // If the MATH table is not loaded yet, do it now.
+ if (!layout->math_blob) {
+ layout->math_blob = OT::Sanitizer<OT::MATH>::sanitize (face->reference_table (HB_OT_TAG_MATH));
+ layout->math = OT::Sanitizer<OT::MATH>::lock_instance (layout->math_blob);
+ }
+
+ return *layout->math;
+}
/*
{
apply_string<GSUBProxy> (c, lookup, accel);
}
+
+/*
+ * OT::MATH
+ */
+
+/**
+ * hb_ot_layout_has_math_data:
+ *
+ * @face: #hb_face_t to test
+ *
+ * This function allows to verify the presence of an OpenType MATH table on the
+ * face. If so, such a table will be loaded into memory and sanitized. You can
+ * then safely call other functions for math layout and shaping.
+ *
+ * Return value: #TRUE if face has a MATH table and #FALSE otherwise
+ *
+ * Since: ????
+ **/
+hb_bool_t
+hb_ot_layout_has_math_data (hb_face_t *face)
+{
+ return &_get_math (face) != &OT::Null(OT::MATH);
+}
#define HB_OT_TAG_GSUB HB_TAG('G','S','U','B')
#define HB_OT_TAG_GPOS HB_TAG('G','P','O','S')
#define HB_OT_TAG_JSTF HB_TAG('J','S','T','F')
+#define HB_OT_TAG_MATH HB_TAG('M','A','T','H')
/*
unsigned int *range_end /* OUT. May be NULL */);
+/*
+ * MATH
+ */
+
+HB_EXTERN hb_bool_t
+hb_ot_layout_has_math_data (hb_face_t *face);
HB_END_DECLS
#endif /* HB_OT_LAYOUT_H */
if HAVE_OT
+
TEST_PROGS += \
test-ot-tag \
$(NULL)
-endif
+
+if HAVE_FREETYPE
+TEST_PROGS += \
+ test-ot-layout-math \
+ $(NULL)
+test_ot_layout_math_LDADD = $(LDADD)
+test_ot_layout_math_CPPFLAGS = $(AM_CPPFLAGS)
+test_ot_layout_math_CPPFLAGS += $(FREETYPE_CFLAGS)
+test_ot_layout_math_LDADD += $(FREETYPE_LIBS)
+endif # HAVE_FREETYPE
+
+endif # HAVE_OT
# Tests for header compilation
TEST_PROGS += \
--- /dev/null
+/*
+ * Copyright © 2016 Igalia S.L.
+ *
+ * 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.
+ *
+ * Igalia Author(s): Frédéric Wang
+ */
+
+
+#include "hb-test.h"
+
+#include "hb-ft.h"
+#include "hb-ot.h"
+
+/* Unit tests for hb-ot-layout.h - OpenType MATH table */
+
+static FT_Library ft_library;
+static FT_Face ft_face;
+static hb_font_t *hb_font;
+static hb_face_t *hb_face;
+
+static void
+initFreeType()
+{
+ FT_Error ft_error;
+ if ((ft_error = FT_Init_FreeType (&ft_library)))
+ abort();
+}
+
+static void
+cleanupFreeType()
+{
+ FT_Done_FreeType (ft_library);
+}
+
+static void
+openFont(const char* fontFile)
+{
+ FT_Error ft_error;
+ if ((ft_error = FT_New_Face (ft_library, fontFile, 0, &ft_face)))
+ abort();
+ unsigned int fontSize = 1000;
+ if ((ft_error = FT_Set_Char_Size (ft_face, fontSize, fontSize, 0, 0)))
+ abort();
+ hb_font = hb_ft_font_create (ft_face, NULL);
+ hb_face = hb_ft_face_create_cached(ft_face);
+}
+
+static void
+closeFont()
+{
+ hb_font_destroy (hb_font);
+ FT_Done_Face (ft_face);
+}
+
+static void
+test_has_math_data (void)
+{
+ initFreeType();
+
+ openFont("fonts/MathTestFontNone.otf");
+ g_assert(!hb_ot_layout_has_math_data (hb_face)); // MATH table not available
+ closeFont();
+
+ openFont("fonts/MathTestFontEmpty.otf");
+ g_assert(hb_ot_layout_has_math_data (hb_face)); // MATH table available
+ closeFont();
+
+ cleanupFreeType();
+}
+
+int
+main (int argc, char **argv)
+{
+ hb_test_init (&argc, &argv);
+
+ hb_test_add (test_has_math_data);
+
+ return hb_test_run();
+}