* 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-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 <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));
+}
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));
+}
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
+ }
}
};
*
* Return value: (transfer full):
*
- * Since: 1.0
+ * 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;
}
*
* Return value: (transfer full):
*
- * Since: 1.0
+ * 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);
}
/**
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_font_funcs_t *
hb_font_funcs_reference (hb_font_funcs_t *ffuncs)
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_funcs_destroy (hb_font_funcs_t *ffuncs)
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_funcs_set_user_data (hb_font_funcs_t *ffuncs,
*
* Return value: (transfer none):
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void *
hb_font_funcs_get_user_data (hb_font_funcs_t *ffuncs,
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_funcs_make_immutable (hb_font_funcs_t *ffuncs)
{
- if (unlikely (hb_object_is_inert (ffuncs)))
+ if (hb_object_is_immutable (ffuncs))
return;
- ffuncs->immutable = true;
+ hb_object_make_immutable (ffuncs);
}
/**
*
* Return value:
*
- * Since: 1.0
+ * 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);
}
void *user_data, \
hb_destroy_func_t destroy) \
{ \
- if (ffuncs->immutable) { \
+ if (hb_object_is_immutable (ffuncs)) { \
if (destroy) \
destroy (user_data); \
return; \
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
+bool
+hb_font_t::has_func_set (unsigned int i)
+{
+ return this->klass->get.array[i] != _hb_font_funcs_default.get.array[i];
+}
+
+bool
+hb_font_t::has_func (unsigned int i)
+{
+ return has_func_set (i) ||
+ (parent && parent != &_hb_Null_hb_font_t && parent->has_func (i));
+}
/* Public getters */
/**
+ * hb_font_get_h_extents:
+ * @font: a font.
+ * @extents: (out):
+ *
+ *
+ *
+ * Return value:
+ *
+ * Since: 1.1.3
+ **/
+hb_bool_t
+hb_font_get_h_extents (hb_font_t *font,
+ hb_font_extents_t *extents)
+{
+ 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_v_extents (hb_font_t *font,
+ hb_font_extents_t *extents)
+{
+ return font->get_font_v_extents (extents);
+}
+
+/**
* hb_font_get_glyph:
* @font: a font.
* @unicode:
*
* Return value:
*
- * Since: 1.0
+ * 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)
{
- return font->get_glyph (unicode, variation_selector, 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_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);
}
/**
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_position_t
hb_font_get_glyph_h_advance (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_position_t
hb_font_get_glyph_v_advance (hb_font_t *font,
}
/**
+ * 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:
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_h_origin (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_v_origin (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
+ * Deprecated: 2.0.0
**/
hb_position_t
hb_font_get_glyph_h_kerning (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
+ * Deprecated: 2.0.0
**/
hb_position_t
hb_font_get_glyph_v_kerning (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_extents (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_contour_point (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_name (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_from_name (hb_font_t *font,
/* 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:
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_get_glyph_advance_for_direction (hb_font_t *font,
{
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:
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_get_glyph_origin_for_direction (hb_font_t *font,
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_add_glyph_origin_for_direction (hb_font_t *font,
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_subtract_glyph_origin_for_direction (hb_font_t *font,
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
+ * Deprecated: 2.0.0
**/
void
hb_font_get_glyph_kerning_for_direction (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_extents_for_origin (hb_font_t *font,
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_get_glyph_contour_point_for_origin (hb_font_t *font,
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_glyph_to_string (hb_font_t *font,
/**
* hb_font_glyph_from_string:
* @font: a font.
- * @s: (array length=len):
+ * @s: (array length=len) (element-type uint8_t):
* @len:
* @glyph: (out):
*
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_glyph_from_string (hb_font_t *font,
* hb_font_t
*/
+DEFINE_NULL_INSTANCE (hb_font_t) =
+{
+ HB_OBJECT_HEADER_STATIC,
+
+ nullptr, /* parent */
+ const_cast<hb_face_t *> (&_hb_Null_hb_face_t),
+
+ 1000, /* x_scale */
+ 1000, /* y_scale */
+
+ 0, /* x_ppem */
+ 0, /* y_ppem */
+ 0, /* ptem */
+
+ 0, /* num_coords */
+ nullptr, /* coords */
+
+ const_cast<hb_font_funcs_t *> (&_hb_Null_hb_font_funcs_t),
+
+ /* Zero for the rest is fine. */
+};
+
+
+static hb_font_t *
+_hb_font_create (hb_face_t *face)
+{
+ hb_font_t *font;
+
+ if (unlikely (!face))
+ face = hb_face_get_empty ();
+ if (!(font = hb_object_create<hb_font_t> ()))
+ return hb_font_get_empty ();
+
+ 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);
+
+ return font;
+}
+
/**
* hb_font_create: (Xconstructor)
* @face: a face.
*
* Return value: (transfer full):
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_font_t *
hb_font_create (hb_face_t *face)
{
- 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_font_t *font = _hb_font_create (face);
- hb_face_make_immutable (face);
- font->face = hb_face_reference (face);
- font->klass = hb_font_funcs_get_empty ();
+ /* Install our in-house, very lightweight, funcs. */
+ hb_ot_font_set_funcs (font);
return font;
}
*
* Return value: (transfer full):
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_font_t *
hb_font_create_sub_font (hb_font_t *parent)
{
if (unlikely (!parent))
- return hb_font_get_empty ();
+ parent = hb_font_get_empty ();
- hb_font_t *font = hb_font_create (parent->face);
+ hb_font_t *font = _hb_font_create (parent->face);
- if (unlikely (hb_object_is_inert (font)))
+ if (unlikely (hb_object_is_immutable (font)))
return font;
- hb_font_make_immutable (parent);
font->parent = hb_font_reference (parent);
font->x_scale = parent->x_scale;
font->y_scale = parent->y_scale;
font->x_ppem = parent->x_ppem;
font->y_ppem = parent->y_ppem;
+ font->ptem = parent->ptem;
+
+ font->num_coords = parent->num_coords;
+ if (!font->num_coords)
+ font->coords = nullptr;
+ else
+ {
+ unsigned int size = parent->num_coords * sizeof (parent->coords[0]);
+ font->coords = (int *) malloc (size);
+ if (unlikely (!font->coords))
+ font->num_coords = 0;
+ else
+ memcpy (font->coords, parent->coords, size);
+ }
return font;
}
*
* Return value: (transfer full)
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_font_t *
-hb_font_get_empty (void)
+hb_font_get_empty ()
{
- static const hb_font_t _hb_font_nil = {
- HB_OBJECT_HEADER_STATIC,
-
- true, /* immutable */
-
- NULL, /* parent */
- const_cast<hb_face_t *> (&_hb_face_nil),
-
- 0, /* x_scale */
- 0, /* y_scale */
-
- 0, /* x_ppem */
- 0, /* y_ppem */
-
- const_cast<hb_font_funcs_t *> (&_hb_font_funcs_nil), /* klass */
- NULL, /* user_data */
- NULL, /* destroy */
-
- {
-#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_INVALID,
-#include "hb-shaper-list.hh"
-#undef HB_SHAPER_IMPLEMENT
- }
- };
-
- return const_cast<hb_font_t *> (&_hb_font_nil);
+ return const_cast<hb_font_t *> (&Null(hb_font_t));
}
/**
*
* Return value: (transfer full):
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_font_t *
hb_font_reference (hb_font_t *font)
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_destroy (hb_font_t *font)
{
if (!hb_object_destroy (font)) return;
-#define HB_SHAPER_IMPLEMENT(shaper) HB_SHAPER_DATA_DESTROY(shaper, font);
-#include "hb-shaper-list.hh"
-#undef HB_SHAPER_IMPLEMENT
+ font->data.fini ();
if (font->destroy)
font->destroy (font->user_data);
hb_face_destroy (font->face);
hb_font_funcs_destroy (font->klass);
+ free (font->coords);
+
free (font);
}
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_set_user_data (hb_font_t *font,
*
* Return value: (transfer none):
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void *
hb_font_get_user_data (hb_font_t *font,
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_make_immutable (hb_font_t *font)
{
- if (unlikely (hb_object_is_inert (font)))
+ if (hb_object_is_immutable (font))
return;
- font->immutable = true;
+ if (font->parent)
+ hb_font_make_immutable (font->parent);
+
+ hb_object_make_immutable (font);
}
/**
*
* Return value:
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_bool_t
hb_font_is_immutable (hb_font_t *font)
{
- return font->immutable;
+ return hb_object_is_immutable (font);
+}
+
+/**
+ * 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)
+{
+ 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);
}
/**
*
* Return value: (transfer none):
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_font_t *
hb_font_get_parent (hb_font_t *font)
}
/**
+ * hb_font_set_face:
+ * @font: a font.
+ * @face: new face.
+ *
+ * Sets font-face of @font.
+ *
+ * Since: 1.4.3
+ **/
+void
+hb_font_set_face (hb_font_t *font,
+ hb_face_t *face)
+{
+ if (hb_object_is_immutable (font))
+ return;
+
+ if (unlikely (!face))
+ face = hb_face_get_empty ();
+
+ hb_face_t *old = font->face;
+
+ font->face = hb_face_reference (face);
+
+ hb_face_destroy (old);
+}
+
+/**
* hb_font_get_face:
* @font: a font.
*
*
* Return value: (transfer none):
*
- * Since: 1.0
+ * Since: 0.9.2
**/
hb_face_t *
hb_font_get_face (hb_font_t *font)
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_set_funcs (hb_font_t *font,
void *font_data,
hb_destroy_func_t destroy)
{
- if (font->immutable) {
+ if (hb_object_is_immutable (font))
+ {
if (destroy)
destroy (font_data);
return;
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_set_funcs_data (hb_font_t *font,
hb_destroy_func_t destroy)
{
/* Destroy user_data? */
- if (font->immutable) {
+ if (hb_object_is_immutable (font))
+ {
if (destroy)
destroy (font_data);
return;
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_set_scale (hb_font_t *font,
int x_scale,
int y_scale)
{
- if (font->immutable)
+ if (hb_object_is_immutable (font))
return;
font->x_scale = x_scale;
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_get_scale (hb_font_t *font,
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_set_ppem (hb_font_t *font,
unsigned int x_ppem,
unsigned int y_ppem)
{
- if (font->immutable)
+ if (hb_object_is_immutable (font))
return;
font->x_ppem = x_ppem;
*
*
*
- * Since: 1.0
+ * Since: 0.9.2
**/
void
hb_font_get_ppem (hb_font_t *font,
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_font_set_ptem (hb_font_t *font, float ptem)
+{
+ 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;
+}
+
+/*
+ * Variations
+ */
+
+static void
+_hb_font_adopt_var_coords_normalized (hb_font_t *font,
+ int *coords, /* 2.14 normalized */
+ unsigned int coords_length)
+{
+ free (font->coords);
+
+ font->coords = coords;
+ font->num_coords = coords_length;
+}
+
+/**
+ * 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)
+{
+ if (hb_object_is_immutable (font))
+ return;
+
+ if (!variations_length)
+ {
+ hb_font_set_var_coords_normalized (font, nullptr, 0);
+ return;
+ }
+
+ unsigned int coords_length = hb_ot_var_get_axis_count (font->face);
+
+ int *normalized = coords_length ? (int *) calloc (coords_length, sizeof (int)) : nullptr;
+ if (unlikely (coords_length && !normalized))
+ return;
+
+ hb_ot_var_normalize_variations (font->face,
+ variations, variations_length,
+ normalized, coords_length);
+ _hb_font_adopt_var_coords_normalized (font, normalized, coords_length);
+}
+
+/**
+ * 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)
+{
+ if (hb_object_is_immutable (font))
+ return;
+
+ int *normalized = coords_length ? (int *) calloc (coords_length, sizeof (int)) : nullptr;
+ if (unlikely (coords_length && !normalized))
+ return;
+
+ hb_ot_var_normalize_coords (font->face, coords_length, coords, normalized);
+ _hb_font_adopt_var_coords_normalized (font, normalized, coords_length);
+}
+
+/**
+ * hb_font_set_var_coords_normalized:
+ *
+ * Since: 1.4.2
+ */
+void
+hb_font_set_var_coords_normalized (hb_font_t *font,
+ const int *coords, /* 2.14 normalized */
+ unsigned int coords_length)
+{
+ if (hb_object_is_immutable (font))
+ return;
+
+ int *copy = coords_length ? (int *) calloc (coords_length, sizeof (coords[0])) : nullptr;
+ if (unlikely (coords_length && !copy))
+ return;
+
+ if (coords_length)
+ memcpy (copy, coords, coords_length * sizeof (coords[0]));
+
+ _hb_font_adopt_var_coords_normalized (font, copy, coords_length);
+}
+
+/**
+ * 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)
+{
+ if (length)
+ *length = font->num_coords;
+
+ return font->coords;
+}
+
+
+/*
+ * Deprecated get_glyph_func():
+ */
+
+struct hb_trampoline_closure_t
+{
+ void *user_data;
+ hb_destroy_func_t destroy;
+ unsigned int ref_count;
+};
+
+template <typename FuncType>
+struct hb_trampoline_t
+{
+ hb_trampoline_closure_t closure; /* Must be first. */
+ FuncType func;
+};
+
+template <typename FuncType>
+static hb_trampoline_t<FuncType> *
+trampoline_create (FuncType func,
+ void *user_data,
+ hb_destroy_func_t destroy)
+{
+ typedef hb_trampoline_t<FuncType> trampoline_t;
+
+ trampoline_t *trampoline = (trampoline_t *) calloc (1, sizeof (trampoline_t));
+
+ if (unlikely (!trampoline))
+ return nullptr;
+
+ trampoline->closure.user_data = user_data;
+ trampoline->closure.destroy = destroy;
+ trampoline->closure.ref_count = 1;
+ trampoline->func = func;
+
+ return trampoline;
+}
+
+static void
+trampoline_reference (hb_trampoline_closure_t *closure)
+{
+ closure->ref_count++;
+}
+
+static void
+trampoline_destroy (void *user_data)
+{
+ hb_trampoline_closure_t *closure = (hb_trampoline_closure_t *) user_data;
+
+ if (--closure->ref_count)
+ return;
+
+ if (closure->destroy)
+ closure->destroy (closure->user_data);
+ free (closure);
+}
+
+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)
+{
+ 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_funcs_set_glyph_func (hb_font_funcs_t *ffuncs,
+ hb_font_get_glyph_func_t func,
+ void *user_data, hb_destroy_func_t destroy)
+{
+ hb_font_get_glyph_trampoline_t *trampoline;
+
+ 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);
+}
projects / platform / upstream / harfbuzz.git / blobdiff