diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-font.cc')
-rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-font.cc | 586 |
1 files changed, 509 insertions, 77 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-font.cc b/src/3rdparty/harfbuzz-ng/src/hb-font.cc index 6a69cae313..2935c4b4fd 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-font.cc +++ b/src/3rdparty/harfbuzz-ng/src/hb-font.cc @@ -35,8 +35,6 @@ #include "hb-ot-head-table.hh" #include "hb-ot-maxp-table.hh" -#include "hb-cache-private.hh" - #include <string.h> @@ -45,130 +43,246 @@ */ 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, + void *font_data HB_UNUSED, + hb_font_extents_t *metrics, + void *user_data HB_UNUSED) { - if (font->parent) - return font->parent->get_glyph (unicode, variation_selector, glyph); + memset (metrics, 0, sizeof (*metrics)); + return false; +} +static hb_bool_t +hb_font_get_font_h_extents_parent (hb_font_t *font, + void *font_data HB_UNUSED, + hb_font_extents_t *metrics, + void *user_data HB_UNUSED) +{ + hb_bool_t ret = font->parent->get_font_h_extents (metrics); + if (ret) { + metrics->ascender = font->parent_scale_y_distance (metrics->ascender); + metrics->descender = font->parent_scale_y_distance (metrics->descender); + metrics->line_gap = font->parent_scale_y_distance (metrics->line_gap); + } + return ret; +} +static hb_bool_t +hb_font_get_font_v_extents_nil (hb_font_t *font, + void *font_data HB_UNUSED, + hb_font_extents_t *metrics, + void *user_data HB_UNUSED) +{ + memset (metrics, 0, sizeof (*metrics)); + return false; +} +static hb_bool_t +hb_font_get_font_v_extents_parent (hb_font_t *font, + void *font_data HB_UNUSED, + hb_font_extents_t *metrics, + void *user_data HB_UNUSED) +{ + hb_bool_t ret = font->parent->get_font_v_extents (metrics); + if (ret) { + metrics->ascender = font->parent_scale_x_distance (metrics->ascender); + metrics->descender = font->parent_scale_x_distance (metrics->descender); + metrics->line_gap = font->parent_scale_x_distance (metrics->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_codepoint_t *glyph, + void *user_data HB_UNUSED) +{ *glyph = 0; return false; } +static hb_bool_t +hb_font_get_nominal_glyph_parent (hb_font_t *font, + void *font_data HB_UNUSED, + hb_codepoint_t unicode, + hb_codepoint_t *glyph, + void *user_data HB_UNUSED) +{ + return font->parent->get_nominal_glyph (unicode, glyph); +} + +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_codepoint_t variation_selector, + hb_codepoint_t *glyph, + void *user_data HB_UNUSED) +{ + *glyph = 0; + return false; +} +static hb_bool_t +hb_font_get_variation_glyph_parent (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, +hb_font_get_glyph_h_advance_nil (hb_font_t *font HB_UNUSED, void *font_data HB_UNUSED, hb_codepoint_t glyph, 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_parent (hb_font_t *font, + void *font_data HB_UNUSED, + hb_codepoint_t glyph, + void *user_data HB_UNUSED) +{ + 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, +hb_font_get_glyph_v_advance_nil (hb_font_t *font HB_UNUSED, void *font_data HB_UNUSED, hb_codepoint_t glyph, 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_parent (hb_font_t *font, + void *font_data HB_UNUSED, + hb_codepoint_t glyph, + void *user_data HB_UNUSED) +{ + return font->parent_scale_y_distance (font->parent->get_glyph_v_advance (glyph)); +} 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_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_parent (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_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_parent (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, 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_parent (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, 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_parent (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_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_parent (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, @@ -176,45 +290,63 @@ hb_font_get_glyph_contour_point_nil (hb_font_t *font, 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_parent (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, 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_parent (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 */ 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_parent (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 = { HB_OBJECT_HEADER_STATIC, @@ -222,9 +354,44 @@ static const hb_font_funcs_t _hb_font_funcs_nil = { true, /* immutable */ { +#define HB_FONT_FUNC_IMPLEMENT(name) NULL, + HB_FONT_FUNCS_IMPLEMENT_CALLBACKS +#undef HB_FONT_FUNC_IMPLEMENT + }, + { +#define HB_FONT_FUNC_IMPLEMENT(name) NULL, + 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_parent = { + HB_OBJECT_HEADER_STATIC, + + true, /* immutable */ + + { +#define HB_FONT_FUNC_IMPLEMENT(name) NULL, + HB_FONT_FUNCS_IMPLEMENT_CALLBACKS +#undef HB_FONT_FUNC_IMPLEMENT + }, + { +#define HB_FONT_FUNC_IMPLEMENT(name) NULL, HB_FONT_FUNCS_IMPLEMENT_CALLBACKS #undef HB_FONT_FUNC_IMPLEMENT + }, + { + { +#define HB_FONT_FUNC_IMPLEMENT(name) hb_font_get_##name##_parent, + HB_FONT_FUNCS_IMPLEMENT_CALLBACKS +#undef HB_FONT_FUNC_IMPLEMENT + } } }; @@ -246,7 +413,7 @@ hb_font_funcs_create (void) 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_parent.get; return ffuncs; } @@ -263,7 +430,7 @@ hb_font_funcs_create (void) hb_font_funcs_t * hb_font_funcs_get_empty (void) { - return const_cast<hb_font_funcs_t *> (&_hb_font_funcs_nil); + return const_cast<hb_font_funcs_t *> (&_hb_font_funcs_parent); } /** @@ -398,11 +565,11 @@ hb_font_funcs_set_##name##_func (hb_font_funcs_t *ffuncs, \ 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->get.f.name = hb_font_get_##name##_parent; \ ffuncs->user_data.name = NULL; \ ffuncs->destroy.name = NULL; \ } \ @@ -411,10 +578,53 @@ hb_font_funcs_set_##name##_func (hb_font_funcs_t *ffuncs, \ HB_FONT_FUNCS_IMPLEMENT_CALLBACKS #undef HB_FONT_FUNC_IMPLEMENT +bool +hb_font_t::has_func (unsigned int i) +{ + if (parent && parent != hb_font_get_empty () && parent->has_func (i)) + return true; + return this->klass->get.array[i] != _hb_font_funcs_parent.get.array[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: @@ -432,7 +642,50 @@ 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); } /** @@ -639,6 +892,23 @@ 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: + * + * + * + * 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: @@ -858,6 +1128,7 @@ hb_font_create (hb_face_t *face) 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 (); @@ -894,6 +1165,8 @@ hb_font_create_sub_font (hb_font_t *parent) font->x_ppem = parent->x_ppem; font->y_ppem = parent->y_ppem; + /* TODO: copy variation coordinates. */ + return font; } @@ -917,12 +1190,15 @@ hb_font_get_empty (void) NULL, /* parent */ const_cast<hb_face_t *> (&_hb_face_nil), - 0, /* x_scale */ - 0, /* y_scale */ + 1000, /* x_scale */ + 1000, /* y_scale */ 0, /* x_ppem */ 0, /* y_ppem */ + 0, /* num_coords */ + NULL, /* coords */ + const_cast<hb_font_funcs_t *> (&_hb_font_funcs_nil), /* klass */ NULL, /* user_data */ NULL, /* destroy */ @@ -977,6 +1253,8 @@ hb_font_destroy (hb_font_t *font) hb_face_destroy (font->face); hb_font_funcs_destroy (font->klass); + free (font->coords); + free (font); } @@ -1264,3 +1542,157 @@ hb_font_get_ppem (hb_font_t *font, if (x_ppem) *x_ppem = font->x_ppem; if (y_ppem) *y_ppem = font->y_ppem; } + + +void +hb_font_set_var_coords_normalized (hb_font_t *font, + int *coords, /* XXX 2.14 normalized */ + unsigned int coords_length) +{ + if (font->immutable) + return; + + /* Skip tail zero entries. */ + while (coords_length && !coords[coords_length - 1]) + coords_length--; + + int *copy = coords_length ? (int *) calloc (coords_length, sizeof (coords[0])) : NULL; + if (unlikely (coords_length && !copy)) + return; + + free (font->coords); + + if (coords_length) + memcpy (copy, coords, coords_length * sizeof (coords[0])); + + font->coords = copy; + font->num_coords = coords_length; +} + + +#ifndef HB_DISABLE_DEPRECATED + +/* + * 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 NULL; + + 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): + * @user_data: + * @destroy: + * + * 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); +} + +#endif /* HB_DISABLE_DEPRECATED */ |