[gtk+/wip/matthiasc/font-variations: 219/219] add some debug spew

[Matthias Clasen <matthiasc src gnome org>]

commit 4eec395cff3c06fa3d1693965b7b2e0d61a07cf5
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Sep 8 14:23:48 2017 -0400

    add some debug spew

 gsk/gskrendernodeimpl.c |   34 ++++++++++++++++++++++++++++++++++
 gsk/meson.build         |    1 +
 meson.build             |    2 ++
 3 files changed, 37 insertions(+), 0 deletions(-)
---
diff --git a/gsk/gskrendernodeimpl.c b/gsk/gskrendernodeimpl.c
index 6ddbb2b..3a77b98 100644
--- a/gsk/gskrendernodeimpl.c
+++ b/gsk/gskrendernodeimpl.c
@@ -27,6 +27,11 @@
 #include "gsktextureprivate.h"
 
 #include <cairo-ft.h>
+#if 0
+#include <hb-ot.h>
+#include <hb-ft.h>
+#include <pango/pangoft2.h>
+#endif
 
 static gboolean
 check_variant_type (GVariant *variant,
@@ -4040,10 +4045,39 @@ gsk_text_node_new (PangoFont        *font,
 {
   GskTextNode *self;
   PangoRectangle ink_rect;
+#if 0
+  FT_Face ft_face;
+  hb_font_t *hb_font;
+  hb_face_t *hb_face;
+  guint n_axes;
+  hb_ot_var_axis_t *axes;
+  int *values;
+  guint n_values;
+  int i;
+#endif
 
   pango_glyph_string_extents (glyphs, font, &ink_rect, NULL);
   pango_extents_to_pixels (&ink_rect, NULL);
 
+#if 0
+  ft_face = pango_fc_font_lock_face (PANGO_FC_FONT (font)),
+  hb_font = hb_ft_font_create (ft_face, NULL);
+  hb_face = hb_font_get_face (hb_font);
+  n_axes = hb_ot_var_get_axis_count (hb_face);
+  axes = g_new (hb_ot_var_axis_t, n_axes);
+  hb_ot_var_get_axes (hb_face, 0, &n_axes, axes);
+  values = hb_font_get_var_coords_normalized (hb_font, &n_values);
+  for (i = 0; i < n_values; i++)
+    {
+      hb_ot_var_axis_t *axis = &axes[i];
+      char tag[5];
+      hb_tag_to_string (axis->tag, tag);
+      tag[4] = 0;
+      g_print ("axis %s: %g - %g - %g: value %g\n",
+               tag, axis->min_value, axis->default_value, axis->max_value, ((double)values[i])/16384.);
+    }
+#endif
+
   /* Don't create nodes with empty bounds */
   if (ink_rect.width == 0 || ink_rect.height == 0)
     return NULL;
diff --git a/gsk/meson.build b/gsk/meson.build
index 3c1278f..8a4da26 100644
--- a/gsk/meson.build
+++ b/gsk/meson.build
@@ -111,6 +111,7 @@ gsk_gen_headers = [ gskenum_h, ]
 gsk_deps = [
   graphene_dep,
   pango_dep,
+  harfbuzz_dep,
   cairo_dep,
   pixbuf_dep,
   libgdk_dep,
diff --git a/meson.build b/meson.build
index 0b1df53..ce32afc 100644
--- a/meson.build
+++ b/meson.build
@@ -26,6 +26,7 @@ endif
 
 glib_req           = '>= @0@.@1@.@2@'.format(glib_major_req, glib_minor_req, glib_micro_req)
 pango_req          = '>= 1.37.3'
+harfbuzz_req       = '>= 1.4.2'
 atk_req            = '>= 2.15.1'
 cairo_req          = '>= 1.14.0'
 gdk_pixbuf_req     = '>= 2.30.0'
@@ -319,6 +320,7 @@ pango_dep      = dependency('pango', version: pango_req)
 pangoft_dep    = dependency('pangoft2', required: wayland_enabled or x11_enabled)
 cairo_dep      = dependency('cairo', version: cairo_req)
 pangocairo_dep = dependency('pangocairo', version: cairo_req)
+harfbuzz_dep   = dependency('harfbuzz', version: harfbuzz_req)
 cairogobj_dep  = dependency('cairo-gobject', version: cairo_req)
 pixbuf_dep     = dependency('gdk-pixbuf-2.0', version: gdk_pixbuf_req)
 epoxy_dep      = dependency('epoxy', version: epoxy_req,