* Google Author(s): Behdad Esfahbod
*/
-#include "hb-private.hh"
+#include "hb.hh"
-#include "hb-ot-layout-private.hh"
+#include "hb-font.hh"
+#include "hb-machinery.hh"
-#include "hb-font-private.hh"
-#include "hb-blob.h"
-#include "hb-open-file-private.hh"
-#include "hb-ot-head-table.hh"
-#include "hb-ot-maxp-table.hh"
+#include "hb-ot.h"
-#include "hb-cache-private.hh"
+#include "hb-ot-var-avar-table.hh"
+#include "hb-ot-var-fvar-table.hh"
-#include <string.h>
+/**
+ * SECTION:hb-font
+ * @title: hb-font
+ * @short_description: Font objects
+ * @include: hb.h
+ *
+ * Font objects represent a font face at a certain size and other
+ * parameters (pixels per EM, points per EM, variation settings.)
+ * Fonts are created from font faces, and are used as input to
+ * hb_shape() among other things.
+ **/
/*
*/
static hb_bool_t
-hb_font_get_glyph_nil (hb_font_t *font,
- void *font_data HB_UNUSED,
- hb_codepoint_t unicode,
- hb_codepoint_t variation_selector,
- hb_codepoint_t *glyph,
- void *user_data HB_UNUSED)
+hb_font_get_font_h_extents_nil (hb_font_t *font HB_UNUSED,
+ void *font_data HB_UNUSED,
+ hb_font_extents_t *extents,
+ void *user_data HB_UNUSED)
{
- if (font->parent)
- return font->parent->get_glyph (unicode, variation_selector, glyph);
+ memset (extents, 0, sizeof (*extents));
+ return false;
+}
+static hb_bool_t
+hb_font_get_font_h_extents_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_font_extents_t *extents,
+ void *user_data HB_UNUSED)
+{
+ hb_bool_t ret = font->parent->get_font_h_extents (extents);
+ if (ret) {
+ extents->ascender = font->parent_scale_y_distance (extents->ascender);
+ extents->descender = font->parent_scale_y_distance (extents->descender);
+ extents->line_gap = font->parent_scale_y_distance (extents->line_gap);
+ }
+ return ret;
+}
+
+static hb_bool_t
+hb_font_get_font_v_extents_nil (hb_font_t *font HB_UNUSED,
+ void *font_data HB_UNUSED,
+ hb_font_extents_t *extents,
+ void *user_data HB_UNUSED)
+{
+ memset (extents, 0, sizeof (*extents));
+ return false;
+}
+static hb_bool_t
+hb_font_get_font_v_extents_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_font_extents_t *extents,
+ void *user_data HB_UNUSED)
+{
+ hb_bool_t ret = font->parent->get_font_v_extents (extents);
+ if (ret) {
+ extents->ascender = font->parent_scale_x_distance (extents->ascender);
+ extents->descender = font->parent_scale_x_distance (extents->descender);
+ extents->line_gap = font->parent_scale_x_distance (extents->line_gap);
+ }
+ return ret;
+}
+
+static hb_bool_t
+hb_font_get_nominal_glyph_nil (hb_font_t *font HB_UNUSED,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t unicode HB_UNUSED,
+ hb_codepoint_t *glyph,
+ void *user_data HB_UNUSED)
+{
+ *glyph = 0;
+ return false;
+}
+static hb_bool_t
+hb_font_get_nominal_glyph_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t unicode,
+ hb_codepoint_t *glyph,
+ void *user_data HB_UNUSED)
+{
+ if (font->has_nominal_glyphs_func_set ())
+ {
+ return font->get_nominal_glyphs (1, &unicode, 0, glyph, 0);
+ }
+ return font->parent->get_nominal_glyph (unicode, glyph);
+}
+
+#define hb_font_get_nominal_glyphs_nil hb_font_get_nominal_glyphs_default
+static unsigned int
+hb_font_get_nominal_glyphs_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ unsigned int count,
+ const hb_codepoint_t *first_unicode,
+ unsigned int unicode_stride,
+ hb_codepoint_t *first_glyph,
+ unsigned int glyph_stride,
+ void *user_data HB_UNUSED)
+{
+ if (font->has_nominal_glyph_func_set ())
+ {
+ for (unsigned int i = 0; i < count; i++)
+ {
+ if (!font->get_nominal_glyph (*first_unicode, first_glyph))
+ return i;
+
+ first_unicode = &StructAtOffsetUnaligned<hb_codepoint_t> (first_unicode, unicode_stride);
+ first_glyph = &StructAtOffsetUnaligned<hb_codepoint_t> (first_glyph, glyph_stride);
+ }
+ return count;
+ }
+
+ return font->parent->get_nominal_glyphs (count,
+ first_unicode, unicode_stride,
+ first_glyph, glyph_stride);
+}
+static hb_bool_t
+hb_font_get_variation_glyph_nil (hb_font_t *font HB_UNUSED,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t unicode HB_UNUSED,
+ hb_codepoint_t variation_selector HB_UNUSED,
+ hb_codepoint_t *glyph,
+ void *user_data HB_UNUSED)
+{
*glyph = 0;
return false;
}
+static hb_bool_t
+hb_font_get_variation_glyph_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t unicode,
+ hb_codepoint_t variation_selector,
+ hb_codepoint_t *glyph,
+ void *user_data HB_UNUSED)
+{
+ return font->parent->get_variation_glyph (unicode, variation_selector, glyph);
+}
+
static hb_position_t
hb_font_get_glyph_h_advance_nil (hb_font_t *font,
void *font_data HB_UNUSED,
- hb_codepoint_t glyph,
+ hb_codepoint_t glyph HB_UNUSED,
void *user_data HB_UNUSED)
{
- if (font->parent)
- return font->parent_scale_x_distance (font->parent->get_glyph_h_advance (glyph));
-
return font->x_scale;
}
+static hb_position_t
+hb_font_get_glyph_h_advance_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t glyph,
+ void *user_data HB_UNUSED)
+{
+ if (font->has_glyph_h_advances_func_set ())
+ {
+ hb_position_t ret;
+ font->get_glyph_h_advances (1, &glyph, 0, &ret, 0);
+ return ret;
+ }
+ return font->parent_scale_x_distance (font->parent->get_glyph_h_advance (glyph));
+}
static hb_position_t
hb_font_get_glyph_v_advance_nil (hb_font_t *font,
void *font_data HB_UNUSED,
- hb_codepoint_t glyph,
+ hb_codepoint_t glyph HB_UNUSED,
void *user_data HB_UNUSED)
{
- if (font->parent)
- return font->parent_scale_y_distance (font->parent->get_glyph_v_advance (glyph));
-
+ /* TODO use font_extents.ascender+descender */
return font->y_scale;
}
+static hb_position_t
+hb_font_get_glyph_v_advance_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t glyph,
+ void *user_data HB_UNUSED)
+{
+ if (font->has_glyph_v_advances_func_set ())
+ {
+ hb_position_t ret;
+ font->get_glyph_v_advances (1, &glyph, 0, &ret, 0);
+ return ret;
+ }
+ return font->parent_scale_y_distance (font->parent->get_glyph_v_advance (glyph));
+}
+
+#define hb_font_get_glyph_h_advances_nil hb_font_get_glyph_h_advances_default
+static void
+hb_font_get_glyph_h_advances_default (hb_font_t* font,
+ void* font_data HB_UNUSED,
+ unsigned int count,
+ const hb_codepoint_t *first_glyph,
+ unsigned int glyph_stride,
+ hb_position_t *first_advance,
+ unsigned int advance_stride,
+ void *user_data HB_UNUSED)
+{
+ if (font->has_glyph_h_advance_func_set ())
+ {
+ for (unsigned int i = 0; i < count; i++)
+ {
+ *first_advance = font->get_glyph_h_advance (*first_glyph);
+ first_glyph = &StructAtOffsetUnaligned<hb_codepoint_t> (first_glyph, glyph_stride);
+ first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride);
+ }
+ return;
+ }
+
+ font->parent->get_glyph_h_advances (count,
+ first_glyph, glyph_stride,
+ first_advance, advance_stride);
+ for (unsigned int i = 0; i < count; i++)
+ {
+ *first_advance = font->parent_scale_x_distance (*first_advance);
+ first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride);
+ }
+}
+
+#define hb_font_get_glyph_v_advances_nil hb_font_get_glyph_v_advances_default
+static void
+hb_font_get_glyph_v_advances_default (hb_font_t* font,
+ void* font_data HB_UNUSED,
+ unsigned int count,
+ const hb_codepoint_t *first_glyph,
+ unsigned int glyph_stride,
+ hb_position_t *first_advance,
+ unsigned int advance_stride,
+ void *user_data HB_UNUSED)
+{
+ if (font->has_glyph_v_advance_func_set ())
+ {
+ for (unsigned int i = 0; i < count; i++)
+ {
+ *first_advance = font->get_glyph_v_advance (*first_glyph);
+ first_glyph = &StructAtOffsetUnaligned<hb_codepoint_t> (first_glyph, glyph_stride);
+ first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride);
+ }
+ return;
+ }
+
+ font->parent->get_glyph_v_advances (count,
+ first_glyph, glyph_stride,
+ first_advance, advance_stride);
+ for (unsigned int i = 0; i < count; i++)
+ {
+ *first_advance = font->parent_scale_y_distance (*first_advance);
+ first_advance = &StructAtOffsetUnaligned<hb_position_t> (first_advance, advance_stride);
+ }
+}
static hb_bool_t
-hb_font_get_glyph_h_origin_nil (hb_font_t *font,
+hb_font_get_glyph_h_origin_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- hb_codepoint_t glyph,
+ hb_codepoint_t glyph HB_UNUSED,
hb_position_t *x,
hb_position_t *y,
void *user_data HB_UNUSED)
{
- if (font->parent) {
- hb_bool_t ret = font->parent->get_glyph_h_origin (glyph, x, y);
- if (ret)
- font->parent_scale_position (x, y);
- return ret;
- }
-
*x = *y = 0;
- return false;
+ return true;
+}
+static hb_bool_t
+hb_font_get_glyph_h_origin_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t glyph,
+ hb_position_t *x,
+ hb_position_t *y,
+ void *user_data HB_UNUSED)
+{
+ hb_bool_t ret = font->parent->get_glyph_h_origin (glyph, x, y);
+ if (ret)
+ font->parent_scale_position (x, y);
+ return ret;
}
static hb_bool_t
-hb_font_get_glyph_v_origin_nil (hb_font_t *font,
+hb_font_get_glyph_v_origin_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- hb_codepoint_t glyph,
+ hb_codepoint_t glyph HB_UNUSED,
hb_position_t *x,
hb_position_t *y,
void *user_data HB_UNUSED)
{
- if (font->parent) {
- hb_bool_t ret = font->parent->get_glyph_v_origin (glyph, x, y);
- if (ret)
- font->parent_scale_position (x, y);
- return ret;
- }
-
*x = *y = 0;
return false;
}
+static hb_bool_t
+hb_font_get_glyph_v_origin_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t glyph,
+ hb_position_t *x,
+ hb_position_t *y,
+ void *user_data HB_UNUSED)
+{
+ hb_bool_t ret = font->parent->get_glyph_v_origin (glyph, x, y);
+ if (ret)
+ font->parent_scale_position (x, y);
+ return ret;
+}
static hb_position_t
-hb_font_get_glyph_h_kerning_nil (hb_font_t *font,
+hb_font_get_glyph_h_kerning_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- hb_codepoint_t left_glyph,
- hb_codepoint_t right_glyph,
+ hb_codepoint_t left_glyph HB_UNUSED,
+ hb_codepoint_t right_glyph HB_UNUSED,
void *user_data HB_UNUSED)
{
- if (font->parent)
- return font->parent_scale_x_distance (font->parent->get_glyph_h_kerning (left_glyph, right_glyph));
-
return 0;
}
+static hb_position_t
+hb_font_get_glyph_h_kerning_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t left_glyph,
+ hb_codepoint_t right_glyph,
+ void *user_data HB_UNUSED)
+{
+ return font->parent_scale_x_distance (font->parent->get_glyph_h_kerning (left_glyph, right_glyph));
+}
+#ifndef HB_DISABLE_DEPRECATED
static hb_position_t
-hb_font_get_glyph_v_kerning_nil (hb_font_t *font,
+hb_font_get_glyph_v_kerning_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- hb_codepoint_t top_glyph,
- hb_codepoint_t bottom_glyph,
+ hb_codepoint_t top_glyph HB_UNUSED,
+ hb_codepoint_t bottom_glyph HB_UNUSED,
void *user_data HB_UNUSED)
{
- if (font->parent)
- return font->parent_scale_y_distance (font->parent->get_glyph_v_kerning (top_glyph, bottom_glyph));
-
return 0;
}
+static hb_position_t
+hb_font_get_glyph_v_kerning_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t top_glyph,
+ hb_codepoint_t bottom_glyph,
+ void *user_data HB_UNUSED)
+{
+ return font->parent_scale_y_distance (font->parent->get_glyph_v_kerning (top_glyph, bottom_glyph));
+}
+#endif
static hb_bool_t
-hb_font_get_glyph_extents_nil (hb_font_t *font,
+hb_font_get_glyph_extents_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- hb_codepoint_t glyph,
+ hb_codepoint_t glyph HB_UNUSED,
hb_glyph_extents_t *extents,
void *user_data HB_UNUSED)
{
- if (font->parent) {
- hb_bool_t ret = font->parent->get_glyph_extents (glyph, extents);
- if (ret) {
- font->parent_scale_position (&extents->x_bearing, &extents->y_bearing);
- font->parent_scale_distance (&extents->width, &extents->height);
- }
- return ret;
- }
-
memset (extents, 0, sizeof (*extents));
return false;
}
+static hb_bool_t
+hb_font_get_glyph_extents_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t glyph,
+ hb_glyph_extents_t *extents,
+ void *user_data HB_UNUSED)
+{
+ hb_bool_t ret = font->parent->get_glyph_extents (glyph, extents);
+ if (ret) {
+ font->parent_scale_position (&extents->x_bearing, &extents->y_bearing);
+ font->parent_scale_distance (&extents->width, &extents->height);
+ }
+ return ret;
+}
static hb_bool_t
-hb_font_get_glyph_contour_point_nil (hb_font_t *font,
+hb_font_get_glyph_contour_point_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- hb_codepoint_t glyph,
- unsigned int point_index,
+ hb_codepoint_t glyph HB_UNUSED,
+ unsigned int point_index HB_UNUSED,
hb_position_t *x,
hb_position_t *y,
void *user_data HB_UNUSED)
{
- if (font->parent) {
- hb_bool_t ret = font->parent->get_glyph_contour_point (glyph, point_index, x, y);
- if (ret)
- font->parent_scale_position (x, y);
- return ret;
- }
-
*x = *y = 0;
return false;
}
+static hb_bool_t
+hb_font_get_glyph_contour_point_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t glyph,
+ unsigned int point_index,
+ hb_position_t *x,
+ hb_position_t *y,
+ void *user_data HB_UNUSED)
+{
+ hb_bool_t ret = font->parent->get_glyph_contour_point (glyph, point_index, x, y);
+ if (ret)
+ font->parent_scale_position (x, y);
+ return ret;
+}
static hb_bool_t
-hb_font_get_glyph_name_nil (hb_font_t *font,
+hb_font_get_glyph_name_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- hb_codepoint_t glyph,
+ hb_codepoint_t glyph HB_UNUSED,
char *name, unsigned int size,
void *user_data HB_UNUSED)
{
- if (font->parent)
- return font->parent->get_glyph_name (glyph, name, size);
-
if (size) *name = '\0';
return false;
}
+static hb_bool_t
+hb_font_get_glyph_name_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ hb_codepoint_t glyph,
+ char *name, unsigned int size,
+ void *user_data HB_UNUSED)
+{
+ return font->parent->get_glyph_name (glyph, name, size);
+}
static hb_bool_t
-hb_font_get_glyph_from_name_nil (hb_font_t *font,
+hb_font_get_glyph_from_name_nil (hb_font_t *font HB_UNUSED,
void *font_data HB_UNUSED,
- const char *name, int len, /* -1 means nul-terminated */
+ const char *name HB_UNUSED,
+ int len HB_UNUSED, /* -1 means nul-terminated */
hb_codepoint_t *glyph,
void *user_data HB_UNUSED)
{
- if (font->parent)
- return font->parent->get_glyph_from_name (name, len, glyph);
-
*glyph = 0;
return false;
}
+static hb_bool_t
+hb_font_get_glyph_from_name_default (hb_font_t *font,
+ void *font_data HB_UNUSED,
+ const char *name, int len, /* -1 means nul-terminated */
+ hb_codepoint_t *glyph,
+ void *user_data HB_UNUSED)
+{
+ return font->parent->get_glyph_from_name (name, len, glyph);
+}
-
-static const hb_font_funcs_t _hb_font_funcs_nil = {
+DEFINE_NULL_INSTANCE (hb_font_funcs_t) =
+{
HB_OBJECT_HEADER_STATIC,
- true, /* immutable */
-
{
+#define HB_FONT_FUNC_IMPLEMENT(name) nullptr,
+ HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_FONT_FUNC_IMPLEMENT
+ },
+ {
+#define HB_FONT_FUNC_IMPLEMENT(name) nullptr,
+ HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_FONT_FUNC_IMPLEMENT
+ },
+ {
+ {
#define HB_FONT_FUNC_IMPLEMENT(name) hb_font_get_##name##_nil,
+ HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_FONT_FUNC_IMPLEMENT
+ }
+ }
+};
+
+static const hb_font_funcs_t _hb_font_funcs_default = {
+ HB_OBJECT_HEADER_STATIC,
+
+ {
+#define HB_FONT_FUNC_IMPLEMENT(name) nullptr,
+ HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_FONT_FUNC_IMPLEMENT
+ },
+ {
+#define HB_FONT_FUNC_IMPLEMENT(name) nullptr,
HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
#undef HB_FONT_FUNC_IMPLEMENT
+ },
+ {
+ {
+#define HB_FONT_FUNC_IMPLEMENT(name) hb_font_get_##name##_default,
+ HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
+#undef HB_FONT_FUNC_IMPLEMENT
+ }
}
};
+/**
+ * hb_font_funcs_create: (Xconstructor)
+ *
+ *
+ *
+ * Return value: (transfer full):
+ *
+ * Since: 0.9.2
+ **/
hb_font_funcs_t *
-hb_font_funcs_create (void)
+hb_font_funcs_create ()
{
hb_font_funcs_t *ffuncs;
if (!(ffuncs = hb_object_create<hb_font_funcs_t> ()))
return hb_font_funcs_get_empty ();
- ffuncs->get = _hb_font_funcs_nil.get;
+ ffuncs->get = _hb_font_funcs_default.get;
return ffuncs;
}
+/**
+ * hb_font_funcs_get_empty:
+ *
+ *
+ *
+ * Return value: (transfer full):
+ *
+ * Since: 0.9.2
+ **/
hb_font_funcs_t *
-hb_font_funcs_get_empty (void)
+hb_font_funcs_get_empty ()
{
- return const_cast<hb_font_funcs_t *> (&_hb_font_funcs_nil);
+ return const_cast<hb_font_funcs_t *> (&_hb_font_funcs_default);
}
+/**
+ * hb_font_funcs_reference: (skip)
+ * @ffuncs: font functions.
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_font_funcs_t *
hb_font_funcs_reference (hb_font_funcs_t *ffuncs)
{
return hb_object_reference (ffuncs);
}
+/**
+ * hb_font_funcs_destroy: (skip)
+ * @ffuncs: font functions.
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_funcs_destroy (hb_font_funcs_t *ffuncs)
{
free (ffuncs);
}
+/**
+ * hb_font_funcs_set_user_data: (skip)
+ * @ffuncs: font functions.
+ * @key:
+ * @data:
+ * @destroy:
+ * @replace:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_funcs_set_user_data (hb_font_funcs_t *ffuncs,
hb_user_data_key_t *key,
return hb_object_set_user_data (ffuncs, key, data, destroy, replace);
}
+/**
+ * hb_font_funcs_get_user_data: (skip)
+ * @ffuncs: font functions.
+ * @key:
+ *
+ *
+ *
+ * Return value: (transfer none):
+ *
+ * Since: 0.9.2
+ **/
void *
hb_font_funcs_get_user_data (hb_font_funcs_t *ffuncs,
hb_user_data_key_t *key)
}
+/**
+ * hb_font_funcs_make_immutable:
+ * @ffuncs: font functions.
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_funcs_make_immutable (hb_font_funcs_t *ffuncs)
{
- if (hb_object_is_inert (ffuncs))
+ if (hb_object_is_immutable (ffuncs))
return;
- ffuncs->immutable = true;
+ hb_object_make_immutable (ffuncs);
}
+/**
+ * hb_font_funcs_is_immutable:
+ * @ffuncs: font functions.
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_funcs_is_immutable (hb_font_funcs_t *ffuncs)
{
- return ffuncs->immutable;
+ return hb_object_is_immutable (ffuncs);
}
#define HB_FONT_FUNC_IMPLEMENT(name) \
- \
+ \
void \
hb_font_funcs_set_##name##_func (hb_font_funcs_t *ffuncs, \
- hb_font_get_##name##_func_t func, \
- void *user_data, \
- hb_destroy_func_t destroy) \
+ hb_font_get_##name##_func_t func, \
+ void *user_data, \
+ hb_destroy_func_t destroy) \
{ \
- if (ffuncs->immutable) { \
+ if (hb_object_is_immutable (ffuncs)) \
+ { \
if (destroy) \
destroy (user_data); \
return; \
} \
- \
+ \
if (ffuncs->destroy.name) \
ffuncs->destroy.name (ffuncs->user_data.name); \
- \
+ \
if (func) { \
- ffuncs->get.name = func; \
+ ffuncs->get.f.name = func; \
ffuncs->user_data.name = user_data; \
ffuncs->destroy.name = destroy; \
} else { \
- ffuncs->get.name = hb_font_get_##name##_nil; \
- ffuncs->user_data.name = NULL; \
- ffuncs->destroy.name = NULL; \
+ ffuncs->get.f.name = hb_font_get_##name##_default; \
+ ffuncs->user_data.name = nullptr; \
+ ffuncs->destroy.name = nullptr; \
} \
}
HB_FONT_FUNCS_IMPLEMENT_CALLBACKS
#undef HB_FONT_FUNC_IMPLEMENT
-
-/* Public getters */
-
-hb_bool_t
-hb_font_get_glyph (hb_font_t *font,
- hb_codepoint_t unicode, hb_codepoint_t variation_selector,
- hb_codepoint_t *glyph)
+bool
+hb_font_t::has_func_set (unsigned int i)
{
- return font->get_glyph (unicode, variation_selector, glyph);
+ return this->klass->get.array[i] != _hb_font_funcs_default.get.array[i];
}
-hb_position_t
-hb_font_get_glyph_h_advance (hb_font_t *font,
- hb_codepoint_t glyph)
+bool
+hb_font_t::has_func (unsigned int i)
{
- return font->get_glyph_h_advance (glyph);
+ return has_func_set (i) ||
+ (parent && parent != &_hb_Null_hb_font_t && parent->has_func (i));
}
-hb_position_t
-hb_font_get_glyph_v_advance (hb_font_t *font,
- hb_codepoint_t glyph)
-{
- return font->get_glyph_v_advance (glyph);
-}
+/* Public getters */
+/**
+ * hb_font_get_h_extents:
+ * @font: a font.
+ * @extents: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 1.1.3
+ **/
hb_bool_t
-hb_font_get_glyph_h_origin (hb_font_t *font,
- hb_codepoint_t glyph,
- hb_position_t *x, hb_position_t *y)
+hb_font_get_h_extents (hb_font_t *font,
+ hb_font_extents_t *extents)
{
- return font->get_glyph_h_origin (glyph, x, y);
+ return font->get_font_h_extents (extents);
}
+/**
+ * hb_font_get_v_extents:
+ * @font: a font.
+ * @extents: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 1.1.3
+ **/
hb_bool_t
-hb_font_get_glyph_v_origin (hb_font_t *font,
- hb_codepoint_t glyph,
- hb_position_t *x, hb_position_t *y)
+hb_font_get_v_extents (hb_font_t *font,
+ hb_font_extents_t *extents)
{
- return font->get_glyph_v_origin (glyph, x, y);
+ return font->get_font_v_extents (extents);
}
-hb_position_t
-hb_font_get_glyph_h_kerning (hb_font_t *font,
- hb_codepoint_t left_glyph, hb_codepoint_t right_glyph)
-{
- return font->get_glyph_h_kerning (left_glyph, right_glyph);
+/**
+ * hb_font_get_glyph:
+ * @font: a font.
+ * @unicode:
+ * @variation_selector:
+ * @glyph: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
+hb_bool_t
+hb_font_get_glyph (hb_font_t *font,
+ hb_codepoint_t unicode, hb_codepoint_t variation_selector,
+ hb_codepoint_t *glyph)
+{
+ if (unlikely (variation_selector))
+ return font->get_variation_glyph (unicode, variation_selector, glyph);
+ return font->get_nominal_glyph (unicode, glyph);
+}
+
+/**
+ * hb_font_get_nominal_glyph:
+ * @font: a font.
+ * @unicode:
+ * @glyph: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 1.2.3
+ **/
+hb_bool_t
+hb_font_get_nominal_glyph (hb_font_t *font,
+ hb_codepoint_t unicode,
+ hb_codepoint_t *glyph)
+{
+ return font->get_nominal_glyph (unicode, glyph);
+}
+
+/**
+ * hb_font_get_nominal_glyphs:
+ * @font: a font.
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 2.6.3
+ **/
+unsigned int
+hb_font_get_nominal_glyphs (hb_font_t *font,
+ unsigned int count,
+ const hb_codepoint_t *first_unicode,
+ unsigned int unicode_stride,
+ hb_codepoint_t *first_glyph,
+ unsigned int glyph_stride)
+{
+ return font->get_nominal_glyphs (count,
+ first_unicode, unicode_stride,
+ first_glyph, glyph_stride);
+}
+
+/**
+ * hb_font_get_variation_glyph:
+ * @font: a font.
+ * @unicode:
+ * @variation_selector:
+ * @glyph: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 1.2.3
+ **/
+hb_bool_t
+hb_font_get_variation_glyph (hb_font_t *font,
+ hb_codepoint_t unicode, hb_codepoint_t variation_selector,
+ hb_codepoint_t *glyph)
+{
+ return font->get_variation_glyph (unicode, variation_selector, glyph);
}
+/**
+ * hb_font_get_glyph_h_advance:
+ * @font: a font.
+ * @glyph:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_position_t
-hb_font_get_glyph_v_kerning (hb_font_t *font,
+hb_font_get_glyph_h_advance (hb_font_t *font,
+ hb_codepoint_t glyph)
+{
+ return font->get_glyph_h_advance (glyph);
+}
+
+/**
+ * hb_font_get_glyph_v_advance:
+ * @font: a font.
+ * @glyph:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
+hb_position_t
+hb_font_get_glyph_v_advance (hb_font_t *font,
+ hb_codepoint_t glyph)
+{
+ return font->get_glyph_v_advance (glyph);
+}
+
+/**
+ * hb_font_get_glyph_h_advances:
+ * @font: a font.
+ *
+ *
+ *
+ * Since: 1.8.6
+ **/
+void
+hb_font_get_glyph_h_advances (hb_font_t* font,
+ unsigned int count,
+ const hb_codepoint_t *first_glyph,
+ unsigned glyph_stride,
+ hb_position_t *first_advance,
+ unsigned advance_stride)
+{
+ font->get_glyph_h_advances (count, first_glyph, glyph_stride, first_advance, advance_stride);
+}
+/**
+ * hb_font_get_glyph_v_advances:
+ * @font: a font.
+ *
+ *
+ *
+ * Since: 1.8.6
+ **/
+void
+hb_font_get_glyph_v_advances (hb_font_t* font,
+ unsigned int count,
+ const hb_codepoint_t *first_glyph,
+ unsigned glyph_stride,
+ hb_position_t *first_advance,
+ unsigned advance_stride)
+{
+ font->get_glyph_v_advances (count, first_glyph, glyph_stride, first_advance, advance_stride);
+}
+
+/**
+ * hb_font_get_glyph_h_origin:
+ * @font: a font.
+ * @glyph:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
+hb_bool_t
+hb_font_get_glyph_h_origin (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_position_t *x, hb_position_t *y)
+{
+ return font->get_glyph_h_origin (glyph, x, y);
+}
+
+/**
+ * hb_font_get_glyph_v_origin:
+ * @font: a font.
+ * @glyph:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
+hb_bool_t
+hb_font_get_glyph_v_origin (hb_font_t *font,
+ hb_codepoint_t glyph,
+ hb_position_t *x, hb_position_t *y)
+{
+ return font->get_glyph_v_origin (glyph, x, y);
+}
+
+/**
+ * hb_font_get_glyph_h_kerning:
+ * @font: a font.
+ * @left_glyph:
+ * @right_glyph:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
+hb_position_t
+hb_font_get_glyph_h_kerning (hb_font_t *font,
hb_codepoint_t left_glyph, hb_codepoint_t right_glyph)
{
- return font->get_glyph_v_kerning (left_glyph, right_glyph);
+ return font->get_glyph_h_kerning (left_glyph, right_glyph);
+}
+
+#ifndef HB_DISABLE_DEPRECATED
+/**
+ * hb_font_get_glyph_v_kerning:
+ * @font: a font.
+ * @top_glyph:
+ * @bottom_glyph:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ * Deprecated: 2.0.0
+ **/
+hb_position_t
+hb_font_get_glyph_v_kerning (hb_font_t *font,
+ hb_codepoint_t top_glyph, hb_codepoint_t bottom_glyph)
+{
+ return font->get_glyph_v_kerning (top_glyph, bottom_glyph);
}
+#endif
+/**
+ * hb_font_get_glyph_extents:
+ * @font: a font.
+ * @glyph:
+ * @extents: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_get_glyph_extents (hb_font_t *font,
hb_codepoint_t glyph,
return font->get_glyph_extents (glyph, extents);
}
+/**
+ * hb_font_get_glyph_contour_point:
+ * @font: a font.
+ * @glyph:
+ * @point_index:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_get_glyph_contour_point (hb_font_t *font,
hb_codepoint_t glyph, unsigned int point_index,
return font->get_glyph_contour_point (glyph, point_index, x, y);
}
+/**
+ * hb_font_get_glyph_name:
+ * @font: a font.
+ * @glyph:
+ * @name: (array length=size):
+ * @size:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_get_glyph_name (hb_font_t *font,
hb_codepoint_t glyph,
return font->get_glyph_name (glyph, name, size);
}
+/**
+ * hb_font_get_glyph_from_name:
+ * @font: a font.
+ * @name: (array length=len):
+ * @len:
+ * @glyph: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_get_glyph_from_name (hb_font_t *font,
const char *name, int len, /* -1 means nul-terminated */
/* A bit higher-level, and with fallback */
+/**
+ * hb_font_get_extents_for_direction:
+ * @font: a font.
+ * @direction:
+ * @extents: (out):
+ *
+ *
+ *
+ * Since: 1.1.3
+ **/
+void
+hb_font_get_extents_for_direction (hb_font_t *font,
+ hb_direction_t direction,
+ hb_font_extents_t *extents)
+{
+ return font->get_extents_for_direction (direction, extents);
+}
+/**
+ * hb_font_get_glyph_advance_for_direction:
+ * @font: a font.
+ * @glyph:
+ * @direction:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_get_glyph_advance_for_direction (hb_font_t *font,
hb_codepoint_t glyph,
{
return font->get_glyph_advance_for_direction (glyph, direction, x, y);
}
-
+/**
+ * hb_font_get_glyph_advances_for_direction:
+ * @font: a font.
+ * @direction:
+ *
+ *
+ *
+ * Since: 1.8.6
+ **/
+HB_EXTERN void
+hb_font_get_glyph_advances_for_direction (hb_font_t* font,
+ hb_direction_t direction,
+ unsigned int count,
+ const hb_codepoint_t *first_glyph,
+ unsigned glyph_stride,
+ hb_position_t *first_advance,
+ unsigned advance_stride)
+{
+ font->get_glyph_advances_for_direction (direction, count, first_glyph, glyph_stride, first_advance, advance_stride);
+}
+
+/**
+ * hb_font_get_glyph_origin_for_direction:
+ * @font: a font.
+ * @glyph:
+ * @direction:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_get_glyph_origin_for_direction (hb_font_t *font,
hb_codepoint_t glyph,
return font->get_glyph_origin_for_direction (glyph, direction, x, y);
}
+/**
+ * hb_font_add_glyph_origin_for_direction:
+ * @font: a font.
+ * @glyph:
+ * @direction:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_add_glyph_origin_for_direction (hb_font_t *font,
hb_codepoint_t glyph,
return font->add_glyph_origin_for_direction (glyph, direction, x, y);
}
+/**
+ * hb_font_subtract_glyph_origin_for_direction:
+ * @font: a font.
+ * @glyph:
+ * @direction:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_subtract_glyph_origin_for_direction (hb_font_t *font,
hb_codepoint_t glyph,
return font->subtract_glyph_origin_for_direction (glyph, direction, x, y);
}
+/**
+ * hb_font_get_glyph_kerning_for_direction:
+ * @font: a font.
+ * @first_glyph:
+ * @second_glyph:
+ * @direction:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_get_glyph_kerning_for_direction (hb_font_t *font,
hb_codepoint_t first_glyph, hb_codepoint_t second_glyph,
return font->get_glyph_kerning_for_direction (first_glyph, second_glyph, direction, x, y);
}
+/**
+ * hb_font_get_glyph_extents_for_origin:
+ * @font: a font.
+ * @glyph:
+ * @direction:
+ * @extents: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_get_glyph_extents_for_origin (hb_font_t *font,
hb_codepoint_t glyph,
return font->get_glyph_extents_for_origin (glyph, direction, extents);
}
+/**
+ * hb_font_get_glyph_contour_point_for_origin:
+ * @font: a font.
+ * @glyph:
+ * @point_index:
+ * @direction:
+ * @x: (out):
+ * @y: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_get_glyph_contour_point_for_origin (hb_font_t *font,
hb_codepoint_t glyph, unsigned int point_index,
}
/* Generates gidDDD if glyph has no name. */
+/**
+ * hb_font_glyph_to_string:
+ * @font: a font.
+ * @glyph:
+ * @s: (array length=size):
+ * @size:
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
hb_font_glyph_to_string (hb_font_t *font,
hb_codepoint_t glyph,
}
/* Parses gidDDD and uniUUUU strings automatically. */
+/**
+ * hb_font_glyph_from_string:
+ * @font: a font.
+ * @s: (array length=len) (element-type uint8_t):
+ * @len:
+ * @glyph: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
hb_font_glyph_from_string (hb_font_t *font,
const char *s, int len, /* -1 means nul-terminated */
/*
- * hb_face_t
+ * hb_font_t
*/
-static const hb_face_t _hb_face_nil = {
+DEFINE_NULL_INSTANCE (hb_font_t) =
+{
HB_OBJECT_HEADER_STATIC,
- true, /* immutable */
+ nullptr, /* parent */
+ const_cast<hb_face_t *> (&_hb_Null_hb_face_t),
- NULL, /* reference_table_func */
- NULL, /* user_data */
- NULL, /* destroy */
+ 1000, /* x_scale */
+ 1000, /* y_scale */
+ 1<<16, /* x_mult */
+ 1<<16, /* y_mult */
- 0, /* index */
- 1000, /* upem */
- 0, /* num_glyphs */
+ 0, /* x_ppem */
+ 0, /* y_ppem */
+ 0, /* ptem */
- {
-#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID,
-#include "hb-shaper-list.hh"
-#undef HB_SHAPER_IMPLEMENT
- },
+ 0, /* num_coords */
+ nullptr, /* coords */
+ nullptr, /* design_coords */
- NULL, /* shape_plans */
+ const_cast<hb_font_funcs_t *> (&_hb_Null_hb_font_funcs_t),
+
+ /* Zero for the rest is fine. */
};
-hb_face_t *
-hb_face_create_for_tables (hb_reference_table_func_t reference_table_func,
- void *user_data,
- hb_destroy_func_t destroy)
+static hb_font_t *
+_hb_font_create (hb_face_t *face)
{
- hb_face_t *face;
-
- if (!reference_table_func || !(face = hb_object_create<hb_face_t> ())) {
- if (destroy)
- destroy (user_data);
- return hb_face_get_empty ();
- }
+ hb_font_t *font;
- face->reference_table_func = reference_table_func;
- face->user_data = user_data;
- face->destroy = destroy;
+ if (unlikely (!face))
+ face = hb_face_get_empty ();
+ if (!(font = hb_object_create<hb_font_t> ()))
+ return hb_font_get_empty ();
- face->upem = 0;
- face->num_glyphs = (unsigned int) -1;
+ hb_face_make_immutable (face);
+ font->parent = hb_font_get_empty ();
+ font->face = hb_face_reference (face);
+ font->klass = hb_font_funcs_get_empty ();
+ font->data.init0 (font);
+ font->x_scale = font->y_scale = hb_face_get_upem (face);
+ font->x_mult = font->y_mult = 1 << 16;
- return face;
+ return font;
}
-
-typedef struct hb_face_for_data_closure_t {
- hb_blob_t *blob;
- unsigned int index;
-} hb_face_for_data_closure_t;
-
-static hb_face_for_data_closure_t *
-_hb_face_for_data_closure_create (hb_blob_t *blob, unsigned int index)
+/**
+ * hb_font_create: (Xconstructor)
+ * @face: a face.
+ *
+ *
+ *
+ * Return value: (transfer full):
+ *
+ * Since: 0.9.2
+ **/
+hb_font_t *
+hb_font_create (hb_face_t *face)
{
- hb_face_for_data_closure_t *closure;
-
- closure = (hb_face_for_data_closure_t *) malloc (sizeof (hb_face_for_data_closure_t));
- if (unlikely (!closure))
- return NULL;
+ hb_font_t *font = _hb_font_create (face);
- closure->blob = blob;
- closure->index = index;
+#ifndef HB_NO_OT_FONT
+ /* Install our in-house, very lightweight, funcs. */
+ hb_ot_font_set_funcs (font);
+#endif
- return closure;
+ return font;
}
static void
-_hb_face_for_data_closure_destroy (hb_face_for_data_closure_t *closure)
-{
- hb_blob_destroy (closure->blob);
- free (closure);
-}
-
-static hb_blob_t *
-_hb_face_for_data_reference_table (hb_face_t *face HB_UNUSED, hb_tag_t tag, void *user_data)
+_hb_font_adopt_var_coords (hb_font_t *font,
+ int *coords, /* 2.14 normalized */
+ float *design_coords,
+ unsigned int coords_length)
{
- hb_face_for_data_closure_t *data = (hb_face_for_data_closure_t *) user_data;
-
- if (tag == HB_TAG_NONE)
- return hb_blob_reference (data->blob);
-
- const OT::OpenTypeFontFile &ot_file = *OT::Sanitizer<OT::OpenTypeFontFile>::lock_instance (data->blob);
- const OT::OpenTypeFontFace &ot_face = ot_file.get_face (data->index);
-
- const OT::OpenTypeTable &table = ot_face.get_table_by_tag (tag);
+ free (font->coords);
+ free (font->design_coords);
- hb_blob_t *blob = hb_blob_create_sub_blob (data->blob, table.offset, table.length);
-
- return blob;
+ font->coords = coords;
+ font->design_coords = design_coords;
+ font->num_coords = coords_length;
}
-hb_face_t *
-hb_face_create (hb_blob_t *blob,
- unsigned int index)
+/**
+ * hb_font_create_sub_font:
+ * @parent: parent font.
+ *
+ *
+ *
+ * Return value: (transfer full):
+ *
+ * Since: 0.9.2
+ **/
+hb_font_t *
+hb_font_create_sub_font (hb_font_t *parent)
{
- hb_face_t *face;
+ if (unlikely (!parent))
+ parent = hb_font_get_empty ();
- if (unlikely (!blob || !hb_blob_get_length (blob)))
- return hb_face_get_empty ();
+ hb_font_t *font = _hb_font_create (parent->face);
- hb_face_for_data_closure_t *closure = _hb_face_for_data_closure_create (OT::Sanitizer<OT::OpenTypeFontFile>::sanitize (hb_blob_reference (blob)), index);
+ if (unlikely (hb_object_is_immutable (font)))
+ return font;
- if (unlikely (!closure))
- return hb_face_get_empty ();
+ font->parent = hb_font_reference (parent);
- face = hb_face_create_for_tables (_hb_face_for_data_reference_table,
- closure,
- (hb_destroy_func_t) _hb_face_for_data_closure_destroy);
+ font->x_scale = parent->x_scale;
+ font->y_scale = parent->y_scale;
+ font->mults_changed ();
+ font->x_ppem = parent->x_ppem;
+ font->y_ppem = parent->y_ppem;
+ font->ptem = parent->ptem;
- hb_face_set_index (face, index);
+ unsigned int num_coords = parent->num_coords;
+ if (num_coords)
+ {
+ int *coords = (int *) calloc (num_coords, sizeof (parent->coords[0]));
+ float *design_coords = (float *) calloc (num_coords, sizeof (parent->design_coords[0]));
+ if (likely (coords && design_coords))
+ {
+ memcpy (coords, parent->coords, num_coords * sizeof (parent->coords[0]));
+ memcpy (design_coords, parent->design_coords, num_coords * sizeof (parent->design_coords[0]));
+ _hb_font_adopt_var_coords (font, coords, design_coords, num_coords);
+ }
+ else
+ {
+ free (coords);
+ free (design_coords);
+ }
+ }
- return face;
+ return font;
}
-hb_face_t *
-hb_face_get_empty (void)
+/**
+ * hb_font_get_empty:
+ *
+ *
+ *
+ * Return value: (transfer full)
+ *
+ * Since: 0.9.2
+ **/
+hb_font_t *
+hb_font_get_empty ()
{
- return const_cast<hb_face_t *> (&_hb_face_nil);
+ return const_cast<hb_font_t *> (&Null (hb_font_t));
}
-
-hb_face_t *
-hb_face_reference (hb_face_t *face)
+/**
+ * hb_font_reference: (skip)
+ * @font: a font.
+ *
+ *
+ *
+ * Return value: (transfer full):
+ *
+ * Since: 0.9.2
+ **/
+hb_font_t *
+hb_font_reference (hb_font_t *font)
{
- return hb_object_reference (face);
+ return hb_object_reference (font);
}
+/**
+ * hb_font_destroy: (skip)
+ * @font: a font.
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
-hb_face_destroy (hb_face_t *face)
+hb_font_destroy (hb_font_t *font)
{
- if (!hb_object_destroy (face)) return;
+ if (!hb_object_destroy (font)) return;
- for (hb_face_t::plan_node_t *node = face->shape_plans; node; )
- {
- hb_face_t::plan_node_t *next = node->next;
- hb_shape_plan_destroy (node->shape_plan);
- free (node);
- node = next;
- }
+ font->data.fini ();
-#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, face);
-#include "hb-shaper-list.hh"
-#undef HB_SHAPER_IMPLEMENT
+ if (font->destroy)
+ font->destroy (font->user_data);
+
+ hb_font_destroy (font->parent);
+ hb_face_destroy (font->face);
+ hb_font_funcs_destroy (font->klass);
- if (face->destroy)
- face->destroy (face->user_data);
+ free (font->coords);
+ free (font->design_coords);
- free (face);
+ free (font);
}
+/**
+ * hb_font_set_user_data: (skip)
+ * @font: a font.
+ * @key:
+ * @data:
+ * @destroy:
+ * @replace:
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
-hb_face_set_user_data (hb_face_t *face,
+hb_font_set_user_data (hb_font_t *font,
hb_user_data_key_t *key,
void * data,
hb_destroy_func_t destroy,
hb_bool_t replace)
{
- return hb_object_set_user_data (face, key, data, destroy, replace);
+ return hb_object_set_user_data (font, key, data, destroy, replace);
}
+/**
+ * hb_font_get_user_data: (skip)
+ * @font: a font.
+ * @key:
+ *
+ *
+ *
+ * Return value: (transfer none):
+ *
+ * Since: 0.9.2
+ **/
void *
-hb_face_get_user_data (hb_face_t *face,
+hb_font_get_user_data (hb_font_t *font,
hb_user_data_key_t *key)
{
- return hb_object_get_user_data (face, key);
+ return hb_object_get_user_data (font, key);
}
-void
-hb_face_make_immutable (hb_face_t *face)
+/**
+ * hb_font_make_immutable:
+ * @font: a font.
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
+void
+hb_font_make_immutable (hb_font_t *font)
{
- if (hb_object_is_inert (face))
+ if (hb_object_is_immutable (font))
return;
- face->immutable = true;
+ if (font->parent)
+ hb_font_make_immutable (font->parent);
+
+ hb_object_make_immutable (font);
}
+/**
+ * hb_font_is_immutable:
+ * @font: a font.
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 0.9.2
+ **/
hb_bool_t
-hb_face_is_immutable (hb_face_t *face)
+hb_font_is_immutable (hb_font_t *font)
{
- return face->immutable;
+ return hb_object_is_immutable (font);
}
-
-hb_blob_t *
-hb_face_reference_table (hb_face_t *face,
- hb_tag_t tag)
+/**
+ * hb_font_set_parent:
+ * @font: a font.
+ * @parent: new parent.
+ *
+ * Sets parent font of @font.
+ *
+ * Since: 1.0.5
+ **/
+void
+hb_font_set_parent (hb_font_t *font,
+ hb_font_t *parent)
{
- return face->reference_table (tag);
+ if (hb_object_is_immutable (font))
+ return;
+
+ if (!parent)
+ parent = hb_font_get_empty ();
+
+ hb_font_t *old = font->parent;
+
+ font->parent = hb_font_reference (parent);
+
+ hb_font_destroy (old);
}
-hb_blob_t *
-hb_face_reference_blob (hb_face_t *face)
+/**
+ * hb_font_get_parent:
+ * @font: a font.
+ *
+ *
+ *
+ * Return value: (transfer none):
+ *
+ * Since: 0.9.2
+ **/
+hb_font_t *
+hb_font_get_parent (hb_font_t *font)
{
- return face->reference_table (HB_TAG_NONE);
+ return font->parent;
}
+/**
+ * hb_font_set_face:
+ * @font: a font.
+ * @face: new face.
+ *
+ * Sets font-face of @font.
+ *
+ * Since: 1.4.3
+ **/
void
-hb_face_set_index (hb_face_t *face,
- unsigned int index)
+hb_font_set_face (hb_font_t *font,
+ hb_face_t *face)
{
- if (hb_object_is_inert (face))
+ if (hb_object_is_immutable (font))
return;
- face->index = index;
+ if (unlikely (!face))
+ face = hb_face_get_empty ();
+
+ hb_face_t *old = font->face;
+
+ hb_face_make_immutable (face);
+ font->face = hb_face_reference (face);
+ font->mults_changed ();
+
+ hb_face_destroy (old);
}
-unsigned int
-hb_face_get_index (hb_face_t *face)
+/**
+ * hb_font_get_face:
+ * @font: a font.
+ *
+ *
+ *
+ * Return value: (transfer none):
+ *
+ * Since: 0.9.2
+ **/
+hb_face_t *
+hb_font_get_face (hb_font_t *font)
{
- return face->index;
+ return font->face;
}
+
+/**
+ * hb_font_set_funcs:
+ * @font: a font.
+ * @klass: (closure font_data) (destroy destroy) (scope notified):
+ * @font_data:
+ * @destroy:
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
-hb_face_set_upem (hb_face_t *face,
- unsigned int upem)
+hb_font_set_funcs (hb_font_t *font,
+ hb_font_funcs_t *klass,
+ void *font_data,
+ hb_destroy_func_t destroy)
{
- if (hb_object_is_inert (face))
+ if (hb_object_is_immutable (font))
+ {
+ if (destroy)
+ destroy (font_data);
return;
+ }
+
+ if (font->destroy)
+ font->destroy (font->user_data);
- face->upem = upem;
+ if (!klass)
+ klass = hb_font_funcs_get_empty ();
+
+ hb_font_funcs_reference (klass);
+ hb_font_funcs_destroy (font->klass);
+ font->klass = klass;
+ font->user_data = font_data;
+ font->destroy = destroy;
}
-unsigned int
-hb_face_get_upem (hb_face_t *face)
+/**
+ * hb_font_set_funcs_data:
+ * @font: a font.
+ * @font_data: (destroy destroy) (scope notified):
+ * @destroy:
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
+void
+hb_font_set_funcs_data (hb_font_t *font,
+ void *font_data,
+ hb_destroy_func_t destroy)
{
- return face->get_upem ();
+ /* Destroy user_data? */
+ if (hb_object_is_immutable (font))
+ {
+ if (destroy)
+ destroy (font_data);
+ return;
+ }
+
+ if (font->destroy)
+ font->destroy (font->user_data);
+
+ font->user_data = font_data;
+ font->destroy = destroy;
}
+
+/**
+ * hb_font_set_scale:
+ * @font: a font.
+ * @x_scale:
+ * @y_scale:
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
-hb_face_t::load_upem (void) const
+hb_font_set_scale (hb_font_t *font,
+ int x_scale,
+ int y_scale)
{
- hb_blob_t *head_blob = OT::Sanitizer<OT::head>::sanitize (reference_table (HB_OT_TAG_head));
- const OT::head *head_table = OT::Sanitizer<OT::head>::lock_instance (head_blob);
- upem = head_table->get_upem ();
- hb_blob_destroy (head_blob);
+ if (hb_object_is_immutable (font))
+ return;
+
+ font->x_scale = x_scale;
+ font->y_scale = y_scale;
+ font->mults_changed ();
}
+/**
+ * hb_font_get_scale:
+ * @font: a font.
+ * @x_scale: (out):
+ * @y_scale: (out):
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
void
-hb_face_set_glyph_count (hb_face_t *face,
- unsigned int glyph_count)
+hb_font_get_scale (hb_font_t *font,
+ int *x_scale,
+ int *y_scale)
{
- if (hb_object_is_inert (face))
+ if (x_scale) *x_scale = font->x_scale;
+ if (y_scale) *y_scale = font->y_scale;
+}
+
+/**
+ * hb_font_set_ppem:
+ * @font: a font.
+ * @x_ppem:
+ * @y_ppem:
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
+void
+hb_font_set_ppem (hb_font_t *font,
+ unsigned int x_ppem,
+ unsigned int y_ppem)
+{
+ if (hb_object_is_immutable (font))
return;
- face->num_glyphs = glyph_count;
+ font->x_ppem = x_ppem;
+ font->y_ppem = y_ppem;
}
-unsigned int
-hb_face_get_glyph_count (hb_face_t *face)
+/**
+ * hb_font_get_ppem:
+ * @font: a font.
+ * @x_ppem: (out):
+ * @y_ppem: (out):
+ *
+ *
+ *
+ * Since: 0.9.2
+ **/
+void
+hb_font_get_ppem (hb_font_t *font,
+ unsigned int *x_ppem,
+ unsigned int *y_ppem)
{
- return face->get_num_glyphs ();
+ if (x_ppem) *x_ppem = font->x_ppem;
+ if (y_ppem) *y_ppem = font->y_ppem;
}
+/**
+ * hb_font_set_ptem:
+ * @font: a font.
+ * @ptem: font size in points.
+ *
+ * Sets "point size" of the font. Set to 0 to unset.
+ *
+ * There are 72 points in an inch.
+ *
+ * Since: 1.6.0
+ **/
void
-hb_face_t::load_num_glyphs (void) const
+hb_font_set_ptem (hb_font_t *font, float ptem)
{
- hb_blob_t *maxp_blob = OT::Sanitizer<OT::maxp>::sanitize (reference_table (HB_OT_TAG_maxp));
- const OT::maxp *maxp_table = OT::Sanitizer<OT::maxp>::lock_instance (maxp_blob);
- num_glyphs = maxp_table->get_num_glyphs ();
- hb_blob_destroy (maxp_blob);
+ if (hb_object_is_immutable (font))
+ return;
+
+ font->ptem = ptem;
}
+/**
+ * hb_font_get_ptem:
+ * @font: a font.
+ *
+ * Gets the "point size" of the font. A value of 0 means unset.
+ *
+ * Return value: Point size.
+ *
+ * Since: 0.9.2
+ **/
+float
+hb_font_get_ptem (hb_font_t *font)
+{
+ return font->ptem;
+}
+#ifndef HB_NO_VAR
/*
- * hb_font_t
+ * Variations
*/
-hb_font_t *
-hb_font_create (hb_face_t *face)
+/**
+ * hb_font_set_variations:
+ *
+ * Since: 1.4.2
+ */
+void
+hb_font_set_variations (hb_font_t *font,
+ const hb_variation_t *variations,
+ unsigned int variations_length)
{
- hb_font_t *font;
-
- if (unlikely (!face))
- face = hb_face_get_empty ();
- if (unlikely (hb_object_is_inert (face)))
- return hb_font_get_empty ();
- if (!(font = hb_object_create<hb_font_t> ()))
- return hb_font_get_empty ();
-
- hb_face_make_immutable (face);
- font->face = hb_face_reference (face);
- font->klass = hb_font_funcs_get_empty ();
-
- return font;
-}
+ if (hb_object_is_immutable (font))
+ return;
-hb_font_t *
-hb_font_create_sub_font (hb_font_t *parent)
-{
- if (unlikely (!parent))
- return hb_font_get_empty ();
+ if (!variations_length)
+ {
+ hb_font_set_var_coords_normalized (font, nullptr, 0);
+ return;
+ }
- hb_font_t *font = hb_font_create (parent->face);
+ unsigned int coords_length = hb_ot_var_get_axis_count (font->face);
- if (unlikely (hb_object_is_inert (font)))
- return font;
+ int *normalized = coords_length ? (int *) calloc (coords_length, sizeof (int)) : nullptr;
+ float *design_coords = coords_length ? (float *) calloc (coords_length, sizeof (float)) : nullptr;
- hb_font_make_immutable (parent);
- font->parent = hb_font_reference (parent);
+ if (unlikely (coords_length && !(normalized && design_coords)))
+ {
+ free (normalized);
+ free (design_coords);
+ return;
+ }
- font->x_scale = parent->x_scale;
- font->y_scale = parent->y_scale;
- font->x_ppem = parent->x_ppem;
- font->y_ppem = parent->y_ppem;
+ const OT::fvar &fvar = *font->face->table.fvar;
+ for (unsigned int i = 0; i < variations_length; i++)
+ {
+ hb_ot_var_axis_info_t info;
+ if (hb_ot_var_find_axis_info (font->face, variations[i].tag, &info) &&
+ info.axis_index < coords_length)
+ {
+ float v = variations[i].value;
+ design_coords[info.axis_index] = v;
+ normalized[info.axis_index] = fvar.normalize_axis_value (info.axis_index, v);
+ }
+ }
+ font->face->table.avar->map_coords (normalized, coords_length);
- return font;
+ _hb_font_adopt_var_coords (font, normalized, design_coords, coords_length);
}
-hb_font_t *
-hb_font_get_empty (void)
+/**
+ * hb_font_set_var_coords_design:
+ *
+ * Since: 1.4.2
+ */
+void
+hb_font_set_var_coords_design (hb_font_t *font,
+ const float *coords,
+ unsigned int coords_length)
{
- static const hb_font_t _hb_font_nil = {
- HB_OBJECT_HEADER_STATIC,
+ if (hb_object_is_immutable (font))
+ return;
- true, /* immutable */
+ int *normalized = coords_length ? (int *) calloc (coords_length, sizeof (int)) : nullptr;
+ float *design_coords = coords_length ? (float *) calloc (coords_length, sizeof (float)) : nullptr;
- NULL, /* parent */
- const_cast<hb_face_t *> (&_hb_face_nil),
+ if (unlikely (coords_length && !(normalized && design_coords)))
+ {
+ free (normalized);
+ free (design_coords);
+ return;
+ }
- 0, /* x_scale */
- 0, /* y_scale */
+ if (coords_length)
+ memcpy (design_coords, coords, coords_length * sizeof (font->design_coords[0]));
- 0, /* x_ppem */
- 0, /* y_ppem */
+ hb_ot_var_normalize_coords (font->face, coords_length, coords, normalized);
+ _hb_font_adopt_var_coords (font, normalized, design_coords, coords_length);
+}
- const_cast<hb_font_funcs_t *> (&_hb_font_funcs_nil), /* klass */
- NULL, /* user_data */
- NULL, /* destroy */
+/**
+ * hb_font_set_var_named_instance:
+ * @font: a font.
+ * @instance_index: named instance index.
+ *
+ * Sets design coords of a font from a named instance index.
+ *
+ * Since: 2.6.0
+ */
+void
+hb_font_set_var_named_instance (hb_font_t *font,
+ unsigned instance_index)
+{
+ if (hb_object_is_immutable (font))
+ return;
- {
-#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID,
-#include "hb-shaper-list.hh"
-#undef HB_SHAPER_IMPLEMENT
- }
- };
+ unsigned int coords_length = hb_ot_var_named_instance_get_design_coords (font->face, instance_index, nullptr, nullptr);
- return const_cast<hb_font_t *> (&_hb_font_nil);
-}
+ float *coords = coords_length ? (float *) calloc (coords_length, sizeof (float)) : nullptr;
+ if (unlikely (coords_length && !coords))
+ return;
-hb_font_t *
-hb_font_reference (hb_font_t *font)
-{
- return hb_object_reference (font);
+ hb_ot_var_named_instance_get_design_coords (font->face, instance_index, &coords_length, coords);
+ hb_font_set_var_coords_design (font, coords, coords_length);
+ free (coords);
}
+/**
+ * hb_font_set_var_coords_normalized:
+ *
+ * Since: 1.4.2
+ */
void
-hb_font_destroy (hb_font_t *font)
+hb_font_set_var_coords_normalized (hb_font_t *font,
+ const int *coords, /* 2.14 normalized */
+ unsigned int coords_length)
{
- if (!hb_object_destroy (font)) return;
+ if (hb_object_is_immutable (font))
+ return;
-#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, font);
-#include "hb-shaper-list.hh"
-#undef HB_SHAPER_IMPLEMENT
+ int *copy = coords_length ? (int *) calloc (coords_length, sizeof (coords[0])) : nullptr;
+ int *unmapped = coords_length ? (int *) calloc (coords_length, sizeof (coords[0])) : nullptr;
+ float *design_coords = coords_length ? (float *) calloc (coords_length, sizeof (design_coords[0])) : nullptr;
- if (font->destroy)
- font->destroy (font->user_data);
+ if (unlikely (coords_length && !(copy && unmapped && design_coords)))
+ {
+ free (copy);
+ free (unmapped);
+ free (design_coords);
+ return;
+ }
- hb_font_destroy (font->parent);
- hb_face_destroy (font->face);
- hb_font_funcs_destroy (font->klass);
+ if (coords_length)
+ {
+ memcpy (copy, coords, coords_length * sizeof (coords[0]));
+ memcpy (unmapped, coords, coords_length * sizeof (coords[0]));
+ }
- free (font);
-}
+ /* Best effort design coords simulation */
+ font->face->table.avar->unmap_coords (unmapped, coords_length);
+ for (unsigned int i = 0; i < coords_length; ++i)
+ design_coords[i] = font->face->table.fvar->unnormalize_axis_value (i, unmapped[i]);
+ free (unmapped);
-hb_bool_t
-hb_font_set_user_data (hb_font_t *font,
- hb_user_data_key_t *key,
- void * data,
- hb_destroy_func_t destroy,
- hb_bool_t replace)
-{
- return hb_object_set_user_data (font, key, data, destroy, replace);
+ _hb_font_adopt_var_coords (font, copy, design_coords, coords_length);
}
-void *
-hb_font_get_user_data (hb_font_t *font,
- hb_user_data_key_t *key)
+/**
+ * hb_font_get_var_coords_normalized:
+ *
+ * Return value is valid as long as variation coordinates of the font
+ * are not modified.
+ *
+ * Since: 1.4.2
+ */
+const int *
+hb_font_get_var_coords_normalized (hb_font_t *font,
+ unsigned int *length)
{
- return hb_object_get_user_data (font, key);
+ if (length)
+ *length = font->num_coords;
+
+ return font->coords;
}
-void
-hb_font_make_immutable (hb_font_t *font)
+#ifdef HB_EXPERIMENTAL_API
+/**
+ * hb_font_get_var_coords_design:
+ *
+ * Return value is valid as long as variation coordinates of the font
+ * are not modified.
+ *
+ * Since: EXPERIMENTAL
+ */
+const float *
+hb_font_get_var_coords_design (hb_font_t *font,
+ unsigned int *length)
{
- if (hb_object_is_inert (font))
- return;
+ if (length)
+ *length = font->num_coords;
- font->immutable = true;
+ return font->design_coords;
}
+#endif
+#endif
-hb_bool_t
-hb_font_is_immutable (hb_font_t *font)
-{
- return font->immutable;
-}
+#ifndef HB_DISABLE_DEPRECATED
+/*
+ * Deprecated get_glyph_func():
+ */
-hb_font_t *
-hb_font_get_parent (hb_font_t *font)
+struct hb_trampoline_closure_t
{
- return font->parent;
-}
+ void *user_data;
+ hb_destroy_func_t destroy;
+ unsigned int ref_count;
+};
-hb_face_t *
-hb_font_get_face (hb_font_t *font)
+template <typename FuncType>
+struct hb_trampoline_t
{
- return font->face;
-}
-
+ hb_trampoline_closure_t closure; /* Must be first. */
+ FuncType func;
+};
-void
-hb_font_set_funcs (hb_font_t *font,
- hb_font_funcs_t *klass,
+template <typename FuncType>
+static hb_trampoline_t<FuncType> *
+trampoline_create (FuncType func,
void *user_data,
hb_destroy_func_t destroy)
{
- if (font->immutable) {
- if (destroy)
- destroy (user_data);
- return;
- }
+ typedef hb_trampoline_t<FuncType> trampoline_t;
- if (font->destroy)
- font->destroy (font->user_data);
+ trampoline_t *trampoline = (trampoline_t *) calloc (1, sizeof (trampoline_t));
- if (!klass)
- klass = hb_font_funcs_get_empty ();
+ if (unlikely (!trampoline))
+ return nullptr;
- hb_font_funcs_reference (klass);
- hb_font_funcs_destroy (font->klass);
- font->klass = klass;
- font->user_data = user_data;
- font->destroy = destroy;
+ trampoline->closure.user_data = user_data;
+ trampoline->closure.destroy = destroy;
+ trampoline->closure.ref_count = 1;
+ trampoline->func = func;
+
+ return trampoline;
}
-void
-hb_font_set_funcs_data (hb_font_t *font,
- void *user_data,
- hb_destroy_func_t destroy)
+static void
+trampoline_reference (hb_trampoline_closure_t *closure)
{
- /* Destroy user_data? */
- if (font->immutable) {
- if (destroy)
- destroy (user_data);
- return;
- }
-
- if (font->destroy)
- font->destroy (font->user_data);
-
- font->user_data = user_data;
- font->destroy = destroy;
+ closure->ref_count++;
}
-
-void
-hb_font_set_scale (hb_font_t *font,
- int x_scale,
- int y_scale)
+static void
+trampoline_destroy (void *user_data)
{
- if (font->immutable)
+ hb_trampoline_closure_t *closure = (hb_trampoline_closure_t *) user_data;
+
+ if (--closure->ref_count)
return;
- font->x_scale = x_scale;
- font->y_scale = y_scale;
+ if (closure->destroy)
+ closure->destroy (closure->user_data);
+ free (closure);
}
-void
-hb_font_get_scale (hb_font_t *font,
- int *x_scale,
- int *y_scale)
+typedef hb_trampoline_t<hb_font_get_glyph_func_t> hb_font_get_glyph_trampoline_t;
+
+static hb_bool_t
+hb_font_get_nominal_glyph_trampoline (hb_font_t *font,
+ void *font_data,
+ hb_codepoint_t unicode,
+ hb_codepoint_t *glyph,
+ void *user_data)
{
- if (x_scale) *x_scale = font->x_scale;
- if (y_scale) *y_scale = font->y_scale;
+ hb_font_get_glyph_trampoline_t *trampoline = (hb_font_get_glyph_trampoline_t *) user_data;
+ return trampoline->func (font, font_data, unicode, 0, glyph, trampoline->closure.user_data);
}
+static hb_bool_t
+hb_font_get_variation_glyph_trampoline (hb_font_t *font,
+ void *font_data,
+ hb_codepoint_t unicode,
+ hb_codepoint_t variation_selector,
+ hb_codepoint_t *glyph,
+ void *user_data)
+{
+ hb_font_get_glyph_trampoline_t *trampoline = (hb_font_get_glyph_trampoline_t *) user_data;
+ return trampoline->func (font, font_data, unicode, variation_selector, glyph, trampoline->closure.user_data);
+}
+
+/**
+ * hb_font_funcs_set_glyph_func:
+ * @ffuncs: font functions.
+ * @func: (closure user_data) (destroy destroy) (scope notified): callback function.
+ * @user_data: data to pass to @func.
+ * @destroy: function to call when @user_data is not needed anymore.
+ *
+ * Deprecated. Use hb_font_funcs_set_nominal_glyph_func() and
+ * hb_font_funcs_set_variation_glyph_func() instead.
+ *
+ * Since: 0.9.2
+ * Deprecated: 1.2.3
+ **/
void
-hb_font_set_ppem (hb_font_t *font,
- unsigned int x_ppem,
- unsigned int y_ppem)
+hb_font_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_func_t func,
+ void *user_data, hb_destroy_func_t destroy)
{
- if (font->immutable)
+ if (hb_object_is_immutable (ffuncs))
+ {
+ if (destroy)
+ destroy (user_data);
return;
+ }
- font->x_ppem = x_ppem;
- font->y_ppem = y_ppem;
-}
+ hb_font_get_glyph_trampoline_t *trampoline;
-void
-hb_font_get_ppem (hb_font_t *font,
- unsigned int *x_ppem,
- unsigned int *y_ppem)
-{
- if (x_ppem) *x_ppem = font->x_ppem;
- if (y_ppem) *y_ppem = font->y_ppem;
+ trampoline = trampoline_create (func, user_data, destroy);
+ if (unlikely (!trampoline))
+ {
+ if (destroy)
+ destroy (user_data);
+ return;
+ }
+
+ hb_font_funcs_set_nominal_glyph_func (ffuncs,
+ hb_font_get_nominal_glyph_trampoline,
+ trampoline,
+ trampoline_destroy);
+
+ trampoline_reference (&trampoline->closure);
+ hb_font_funcs_set_variation_glyph_func (ffuncs,
+ hb_font_get_variation_glyph_trampoline,
+ trampoline,
+ trampoline_destroy);
}
+#endif
projects / platform / upstream / harfbuzz.git / blobdiff