diff options
Diffstat (limited to 'gfx/harfbuzz/src/hb-subset-input.cc')
| -rw-r--r-- | gfx/harfbuzz/src/hb-subset-input.cc | 105 |
1 files changed, 89 insertions, 16 deletions
diff --git a/gfx/harfbuzz/src/hb-subset-input.cc b/gfx/harfbuzz/src/hb-subset-input.cc index 1e0a89a630..68a3e77788 100644 --- a/gfx/harfbuzz/src/hb-subset-input.cc +++ b/gfx/harfbuzz/src/hb-subset-input.cc @@ -24,6 +24,7 @@ * Google Author(s): Garret Rieger, Rod Sheeter, Behdad Esfahbod */ +#include "hb-subset-instancer-solver.hh" #include "hb-subset.hh" #include "hb-set.hh" #include "hb-utf.hh" @@ -50,7 +51,6 @@ hb_subset_input_t::hb_subset_input_t () HB_TAG ('k', 'e', 'r', 'n'), // Copied from fontTools: - HB_TAG ('B', 'A', 'S', 'E'), HB_TAG ('J', 'S', 'T', 'F'), HB_TAG ('D', 'S', 'I', 'G'), HB_TAG ('E', 'B', 'D', 'T'), @@ -418,6 +418,46 @@ hb_subset_input_keep_everything (hb_subset_input_t *input) #ifndef HB_NO_VAR /** + * hb_subset_input_pin_all_axes_to_default: (skip) + * @input: a #hb_subset_input_t object. + * @face: a #hb_face_t object. + * + * Pin all axes to default locations in the given subset input object. + * + * All axes in a font must be pinned. Additionally, `CFF2` table, if present, + * will be de-subroutinized. + * + * Return value: `true` if success, `false` otherwise + * + * Since: 8.3.1 + **/ +HB_EXTERN hb_bool_t +hb_subset_input_pin_all_axes_to_default (hb_subset_input_t *input, + hb_face_t *face) +{ + unsigned axis_count = hb_ot_var_get_axis_count (face); + if (!axis_count) return false; + + hb_ot_var_axis_info_t *axis_infos = (hb_ot_var_axis_info_t *) hb_calloc (axis_count, sizeof (hb_ot_var_axis_info_t)); + if (unlikely (!axis_infos)) return false; + + (void) hb_ot_var_get_axis_infos (face, 0, &axis_count, axis_infos); + + for (unsigned i = 0; i < axis_count; i++) + { + hb_tag_t axis_tag = axis_infos[i].tag; + float default_val = axis_infos[i].default_value; + if (!input->axes_location.set (axis_tag, Triple (default_val, default_val, default_val))) + { + hb_free (axis_infos); + return false; + } + } + hb_free (axis_infos); + return true; +} + +/** * hb_subset_input_pin_axis_to_default: (skip) * @input: a #hb_subset_input_t object. * @face: a #hb_face_t object. @@ -481,16 +521,13 @@ hb_subset_input_pin_axis_location (hb_subset_input_t *input, * @input: a #hb_subset_input_t object. * @face: a #hb_face_t object. * @axis_tag: Tag of the axis - * @axis_min_value: Minimum value of the axis variation range to set - * @axis_max_value: Maximum value of the axis variation range to set - * @axis_def_value: Default value of the axis variation range to set, in case of - * null, it'll be determined automatically + * @axis_min_value: Minimum value of the axis variation range to set, if NaN the existing min will be used. + * @axis_max_value: Maximum value of the axis variation range to set if NaN the existing max will be used. + * @axis_def_value: Default value of the axis variation range to set, if NaN the existing default will be used. * * Restricting the range of variation on an axis in the given subset input object. * New min/default/max values will be clamped if they're not within the fvar axis range. - * If the new default value is null: - * If the fvar axis default value is within the new range, then new default - * value is the same as original default value. + * * If the fvar axis default value is not within the new range, the new default * value will be changed to the new min or max value, whichever is closer to the fvar * axis default. @@ -509,21 +546,57 @@ hb_subset_input_set_axis_range (hb_subset_input_t *input, hb_tag_t axis_tag, float axis_min_value, float axis_max_value, - float *axis_def_value /* IN, maybe NULL */) + float axis_def_value) { - if (axis_min_value > axis_max_value) - return false; - hb_ot_var_axis_info_t axis_info; if (!hb_ot_var_find_axis_info (face, axis_tag, &axis_info)) return false; - float new_min_val = hb_clamp(axis_min_value, axis_info.min_value, axis_info.max_value); - float new_max_val = hb_clamp(axis_max_value, axis_info.min_value, axis_info.max_value); - float new_default_val = axis_def_value ? *axis_def_value : axis_info.default_value; - new_default_val = hb_clamp(new_default_val, new_min_val, new_max_val); + float min = !std::isnan(axis_min_value) ? axis_min_value : axis_info.min_value; + float max = !std::isnan(axis_max_value) ? axis_max_value : axis_info.max_value; + float def = !std::isnan(axis_def_value) ? axis_def_value : axis_info.default_value; + + if (min > max) + return false; + + float new_min_val = hb_clamp(min, axis_info.min_value, axis_info.max_value); + float new_max_val = hb_clamp(max, axis_info.min_value, axis_info.max_value); + float new_default_val = hb_clamp(def, new_min_val, new_max_val); return input->axes_location.set (axis_tag, Triple (new_min_val, new_default_val, new_max_val)); } + +/** + * hb_subset_input_get_axis_range: (skip) + * @input: a #hb_subset_input_t object. + * @axis_tag: Tag of the axis + * @axis_min_value: Set to the previously configured minimum value of the axis variation range. + * @axis_max_value: Set to the previously configured maximum value of the axis variation range. + * @axis_def_value: Set to the previously configured default value of the axis variation range. + * + * Gets the axis range assigned by previous calls to hb_subset_input_set_axis_range. + * + * Return value: `true` if a range has been set for this axis tag, `false` otherwise. + * + * XSince: EXPERIMENTAL + **/ +HB_EXTERN hb_bool_t +hb_subset_input_get_axis_range (hb_subset_input_t *input, + hb_tag_t axis_tag, + float *axis_min_value, + float *axis_max_value, + float *axis_def_value) + +{ + Triple* triple; + if (!input->axes_location.has(axis_tag, &triple)) { + return false; + } + + *axis_min_value = triple->minimum; + *axis_def_value = triple->middle; + *axis_max_value = triple->maximum; + return true; +} #endif #endif |