diff options
Diffstat (limited to 'src/3rdparty/harfbuzz-ng/src/hb-ot-var-fvar-table.hh')
| -rw-r--r-- | src/3rdparty/harfbuzz-ng/src/hb-ot-var-fvar-table.hh | 200 |
1 files changed, 87 insertions, 113 deletions
diff --git a/src/3rdparty/harfbuzz-ng/src/hb-ot-var-fvar-table.hh b/src/3rdparty/harfbuzz-ng/src/hb-ot-var-fvar-table.hh index 7ce3123819..f9e933fb2b 100644 --- a/src/3rdparty/harfbuzz-ng/src/hb-ot-var-fvar-table.hh +++ b/src/3rdparty/harfbuzz-ng/src/hb-ot-var-fvar-table.hh @@ -70,22 +70,83 @@ struct InstanceRecord struct AxisRecord { + int cmp (hb_tag_t key) const { return axisTag.cmp (key); } + enum { AXIS_FLAG_HIDDEN = 0x0001, }; +#ifndef HB_DISABLE_DEPRECATED + void get_axis_deprecated (hb_ot_var_axis_t *info) const + { + info->tag = axisTag; + info->name_id = axisNameID; + get_coordinates (info->min_value, info->default_value, info->max_value); + } +#endif + + void get_axis_info (unsigned axis_index, hb_ot_var_axis_info_t *info) const + { + info->axis_index = axis_index; + info->tag = axisTag; + info->name_id = axisNameID; + info->flags = (hb_ot_var_axis_flags_t) (unsigned int) flags; + get_coordinates (info->min_value, info->default_value, info->max_value); + info->reserved = 0; + } + + int normalize_axis_value (float v) const + { + float min_value, default_value, max_value; + get_coordinates (min_value, default_value, max_value); + + v = hb_clamp (v, min_value, max_value); + + if (v == default_value) + return 0; + else if (v < default_value) + v = (v - default_value) / (default_value - min_value); + else + v = (v - default_value) / (max_value - default_value); + return roundf (v * 16384.f); + } + + float unnormalize_axis_value (int v) const + { + float min_value, default_value, max_value; + get_coordinates (min_value, default_value, max_value); + + if (v == 0) + return default_value; + else if (v < 0) + return v * (default_value - min_value) / 16384.f + default_value; + else + return v * (max_value - default_value) / 16384.f + default_value; + } + + hb_ot_name_id_t get_name_id () const { return axisNameID; } + bool sanitize (hb_sanitize_context_t *c) const { TRACE_SANITIZE (this); return_trace (c->check_struct (this)); } - public: + protected: + void get_coordinates (float &min, float &default_, float &max) const + { + default_ = defaultValue / 65536.f; + /* Ensure order, to simplify client math. */ + min = hb_min (default_, minValue / 65536.f); + max = hb_max (default_, maxValue / 65536.f); + } + + protected: Tag axisTag; /* Tag identifying the design variation for the axis. */ - HBFixed minValue; /* The minimum coordinate value for the axis. */ - HBFixed defaultValue; /* The default coordinate value for the axis. */ - HBFixed maxValue; /* The maximum coordinate value for the axis. */ + HBFixed minValue; /* The minimum coordinate value for the axis. */ + HBFixed defaultValue; /* The default coordinate value for the axis. */ + HBFixed maxValue; /* The maximum coordinate value for the axis. */ HBUINT16 flags; /* Axis flags. */ NameID axisNameID; /* The name ID for entries in the 'name' table that * provide a display name for this axis. */ @@ -115,53 +176,15 @@ struct fvar unsigned int get_axis_count () const { return axisCount; } #ifndef HB_DISABLE_DEPRECATED - void get_axis_deprecated (unsigned int axis_index, - hb_ot_var_axis_t *info) const - { - const AxisRecord &axis = get_axes ()[axis_index]; - info->tag = axis.axisTag; - info->name_id = axis.axisNameID; - info->default_value = axis.defaultValue / 65536.f; - /* Ensure order, to simplify client math. */ - info->min_value = hb_min (info->default_value, axis.minValue / 65536.f); - info->max_value = hb_max (info->default_value, axis.maxValue / 65536.f); - } -#endif - - void get_axis_info (unsigned int axis_index, - hb_ot_var_axis_info_t *info) const - { - const AxisRecord &axis = get_axes ()[axis_index]; - info->axis_index = axis_index; - info->tag = axis.axisTag; - info->name_id = axis.axisNameID; - info->flags = (hb_ot_var_axis_flags_t) (unsigned int) axis.flags; - info->default_value = axis.defaultValue / 65536.f; - /* Ensure order, to simplify client math. */ - info->min_value = hb_min (info->default_value, axis.minValue / 65536.f); - info->max_value = hb_max (info->default_value, axis.maxValue / 65536.f); - info->reserved = 0; - } - -#ifndef HB_DISABLE_DEPRECATED unsigned int get_axes_deprecated (unsigned int start_offset, unsigned int *axes_count /* IN/OUT */, hb_ot_var_axis_t *axes_array /* OUT */) const { if (axes_count) { - /* TODO Rewrite as hb_array_t<>::sub-array() */ - unsigned int count = axisCount; - start_offset = hb_min (start_offset, count); - - count -= start_offset; - axes_array += start_offset; - - count = hb_min (count, *axes_count); - *axes_count = count; - - for (unsigned int i = 0; i < count; i++) - get_axis_deprecated (start_offset + i, axes_array + i); + hb_array_t<const AxisRecord> arr = get_axes ().sub_array (start_offset, axes_count); + for (unsigned i = 0; i < arr.length; ++i) + arr[i].get_axis_deprecated (&axes_array[i]); } return axisCount; } @@ -173,86 +196,38 @@ struct fvar { if (axes_count) { - /* TODO Rewrite as hb_array_t<>::sub-array() */ - unsigned int count = axisCount; - start_offset = hb_min (start_offset, count); - - count -= start_offset; - axes_array += start_offset; - - count = hb_min (count, *axes_count); - *axes_count = count; - - for (unsigned int i = 0; i < count; i++) - get_axis_info (start_offset + i, axes_array + i); + hb_array_t<const AxisRecord> arr = get_axes ().sub_array (start_offset, axes_count); + for (unsigned i = 0; i < arr.length; ++i) + arr[i].get_axis_info (start_offset + i, &axes_array[i]); } return axisCount; } #ifndef HB_DISABLE_DEPRECATED - bool find_axis_deprecated (hb_tag_t tag, - unsigned int *axis_index, - hb_ot_var_axis_t *info) const + bool + find_axis_deprecated (hb_tag_t tag, unsigned *axis_index, hb_ot_var_axis_t *info) const { - const AxisRecord *axes = get_axes (); - unsigned int count = get_axis_count (); - for (unsigned int i = 0; i < count; i++) - if (axes[i].axisTag == tag) - { - if (axis_index) - *axis_index = i; - get_axis_deprecated (i, info); - return true; - } - if (axis_index) - *axis_index = HB_OT_VAR_NO_AXIS_INDEX; - return false; + unsigned i; + if (!axis_index) axis_index = &i; + *axis_index = HB_OT_VAR_NO_AXIS_INDEX; + auto axes = get_axes (); + return axes.lfind (tag, axis_index) && (axes[*axis_index].get_axis_deprecated (info), true); } #endif - bool find_axis_info (hb_tag_t tag, - hb_ot_var_axis_info_t *info) const + bool + find_axis_info (hb_tag_t tag, hb_ot_var_axis_info_t *info) const { - const AxisRecord *axes = get_axes (); - unsigned int count = get_axis_count (); - for (unsigned int i = 0; i < count; i++) - if (axes[i].axisTag == tag) - { - get_axis_info (i, info); - return true; - } - return false; + unsigned i; + auto axes = get_axes (); + return axes.lfind (tag, &i) && (axes[i].get_axis_info (i, info), true); } int normalize_axis_value (unsigned int axis_index, float v) const - { - hb_ot_var_axis_info_t axis; - get_axis_info (axis_index, &axis); - - v = hb_max (hb_min (v, axis.max_value), axis.min_value); /* Clamp. */ - - if (v == axis.default_value) - return 0; - else if (v < axis.default_value) - v = (v - axis.default_value) / (axis.default_value - axis.min_value); - else - v = (v - axis.default_value) / (axis.max_value - axis.default_value); - return roundf (v * 16384.f); - } - - float unnormalize_axis_value (unsigned int axis_index, float v) const - { - hb_ot_var_axis_info_t axis; - get_axis_info (axis_index, &axis); + { return get_axes ()[axis_index].normalize_axis_value (v); } - if (v == 0) - return axis.default_value; - else if (v < 0) - v = v * (axis.default_value - axis.min_value) / 16384.f + axis.default_value; - else - v = v * (axis.max_value - axis.default_value) / 16384.f + axis.default_value; - return v; - } + float unnormalize_axis_value (unsigned int axis_index, int v) const + { return get_axes ()[axis_index].unnormalize_axis_value (v); } unsigned int get_instance_count () const { return instanceCount; } @@ -299,7 +274,7 @@ struct fvar if (!has_data ()) return; + get_axes () - | hb_map (&AxisRecord::axisNameID) + | hb_map (&AxisRecord::get_name_id) | hb_sink (nameids) ; @@ -314,7 +289,6 @@ struct fvar ; } - protected: hb_array_t<const AxisRecord> get_axes () const { return hb_array (&(this+firstAxis), axisCount); } |